Ford Global Technologies, LLC patent applications published on December 28th, 2023

Summary of the patent applications from Ford Global Technologies, LLC on December 28th, 2023

Ford Global Technologies, LLC has recently filed several patents related to various technologies in the automotive industry. These patents cover a range of innovations including temperature monitoring in motors, controlling current commands in inverters, adjusting compression force in battery charging systems, fuel cell system pressure regulation, hybrid positive electrode materials for batteries, machine learning-based environmental data analysis, vehicle pose estimation, protolane testing, and ultrasonic object detection.

Notable applications of these patents include:

• Motor temperature monitoring and control in industries such as automotive, manufacturing, and robotics.
• Improved efficiency and performance of motors through real-time temperature monitoring.
• Efficient and controlled deactivation of vehicles and proper disconnection of traction batteries from inverters.
• Enhanced safety and stability during the deactivation process.
• Optimization of battery charging processes to extend battery lifespan in electric vehicles, renewable energy storage, and portable electronics.
• Prevention of excessive pressure differences in fuel cell systems, improving efficiency and safety.
• Improved battery performance, energy density, power density, lifespan, and cycle life.
• Training machine learning algorithms for autonomous vehicles, environmental monitoring, and predictive maintenance.
• Accurate determination of vehicle position and orientation in real-time for autonomous vehicles, augmented reality, and robotics.
• Streamlined testing process through the identification of common elements across different protolane families.
• Accurate object detection and tracking around vehicles using ultrasonic sensors, improving safety and efficiency.

Overall, these patents demonstrate Ford Global Technologies, LLC's commitment to innovation in various areas of the automotive industry, with a focus on improving performance, efficiency, safety, and sustainability.

Patent applications for Ford Global Technologies, LLC on December 28th, 2023

SANITIZATION APPARATUS FOR A VEHICLE USING ULTRAVIOLET LIGHT (17850751)

Main Inventor

Jay Z. Chen

Brief explanation

The abstract describes a sanitization apparatus for vehicles that uses ultraviolet light to sterilize objects. The apparatus includes a chamber and a light emitting diode (LED) that emits ultraviolet light. A reflective surface is placed adjacent to the LED to reflect the emitted light into the chamber. The reflective surface and the LED are positioned in a way that their planes intersect.

• The apparatus is designed to sanitize objects in vehicles using ultraviolet light.
• It includes a chamber and a LED that emits ultraviolet light.
• A reflective surface is placed next to the LED to reflect the emitted light into the chamber.
• The reflective surface and the LED are positioned in a way that their planes intersect.

Potential Applications

• Sanitizing objects in vehicles, such as car interiors or public transportation.
• Sterilizing personal belongings, such as bags or electronic devices, in vehicles.

Problems Solved

• Provides a convenient and efficient way to sanitize objects in vehicles.
• Helps to reduce the spread of germs and viruses in enclosed spaces.

Benefits

• Uses ultraviolet light to effectively sterilize objects.
• Compact and easily installable in vehicles.
• Reflective surface enhances the distribution of ultraviolet light in the chamber.

Abstract

A sanitization apparatus of a vehicle includes (i) surfaces defining a chamber configured to accept an object to be sterilized with ultraviolet light and (ii) a first light emitting diode (LED) including a die that is configured to emit ultraviolet light. The die has a primary surface that defines a plane that extends through the chamber. The sanitization apparatus further includes a first reflective surface that is reflective of ultraviolet light disposed adjacent to the first LED. At least a portion of the ultraviolet light that the die emits reflects off of the first reflective surface and into the chamber. The first reflective surface defines a plane that intersects with the plane that the primary surface of the die defines.

ELECTRIFIED VEHICLE HIGH VOLTAGE CONTACTOR CONTROL (17847603)

Main Inventor

Rui WANG

Brief explanation

The abstract describes an electrified vehicle that includes a contactor and a programmed controller. The contactor is responsible for electrically connecting a high-voltage bus to a charger that receives power from an external source. The controller predicts the time it will take for the contactor to close after receiving a command, based on the temperature and voltage of the command signal. It generates a low-voltage control signal when the difference between the bus voltage and charger voltage is below a certain threshold at the predicted closing time of the contactor. The control signal may also consider the rate of change of the charger voltage being below a second threshold.

• An electrified vehicle with a contactor and a programmed controller is described.
• The contactor selectively connects a high-voltage bus to a charger receiving power from an external source.
• The controller predicts the time it will take for the contactor to close after receiving a command.
• The prediction is based on the temperature and voltage of the command signal.
• The controller generates a low-voltage control signal when the difference between the bus voltage and charger voltage is below a first threshold at the predicted closing time.
• The control signal may also depend on the rate of change of the charger voltage being below a second threshold.

Potential Applications

• Electric vehicles
• Hybrid vehicles
• Plug-in hybrid vehicles

Problems Solved

• Efficient and reliable connection between high-voltage bus and charger
• Predicting contactor closing time accurately
• Ensuring the control signal is generated at the right time based on voltage thresholds

Benefits

• Improved charging efficiency
• Enhanced safety and reliability
• Optimal use of power source
• Reduced wear and tear on the contactor

Abstract

An electrified vehicle includes a contactor having a coil operable by a low-voltage control signal to selectively electrically couple a terminal of a high-voltage bus to a charger receiving power from an external source. A programmed controller predicts the time it will take for the contactor to close after receiving a command based on the coil temperature and voltage of the command signal. The controller generates the low-voltage control signal responsive to a difference between bus voltage and charger voltage being less than a first threshold at the predicted closing time of the contactor. The control signal may also depend on the rate of change of the charger voltage being below a second threshold.

SYSTEMS AND METHODS FOR PREPARING ELECTRIFIED VEHICLES TO TRANSFER ENERGY (17849849)

Main Inventor

Stuart C. SALTER

Brief explanation

The patent application describes systems and methods for preparing electrified vehicles to transfer energy to other structures during power outages. Here are the key points:

• The technology uses weather and grid data to predict the likelihood of power outages.
• When a power outage is predicted, the electrified vehicle automatically enters a readiness state for transferring power to the structure.
• The readiness state includes waking up the vehicle, initiating communications with the electric vehicle supply equipment (EVSE), and completing pre-checks.
• Certain power transfer system components are precharged to ensure a seamless transfer of power.

Potential applications of this technology:

• Emergency power backup: Electrified vehicles can be used as a reliable source of power during power outages, providing electricity to homes, buildings, or critical infrastructure.
• Grid stability: By utilizing electrified vehicles as energy sources, the technology can help stabilize the grid during peak demand or in areas with unreliable power supply.

Problems solved by this technology:

• Power outage preparedness: The technology allows electrified vehicles to automatically enter a readiness state, eliminating time delays and ensuring a quick response during power outages.
• Dependable power supply: By leveraging electrified vehicles, the technology provides a reliable source of power during emergencies, reducing the impact of power outages on individuals and communities.

Benefits of this technology:

• Improved resilience: The technology enhances the ability of electrified vehicles to serve as backup power sources, increasing resilience during power outages.
• Efficient power transfer: By precharging power transfer system components, the technology enables a seamless and efficient transfer of energy from the vehicle to the structure.
• Grid support: The use of electrified vehicles as energy sources can help support the grid, especially during periods of high demand or when the grid is unstable.

Abstract

Systems and methods are disclosed for preparing electrified vehicles to transfer energy to other structures. Weather related data and/or grid related data may be leveraged for predicting the likelihood of power outage conditions of a grid power source. When power outage conditions are predicted as being likely, the electrified vehicle may automatically enter a readiness state for transferring power to the structure without any time delays once an actual power outage condition occurs. Entering the readiness state may include steps such as waking up the electrified vehicle, initiating communications with electric vehicle supply equipment (EVSE), completing vehicle pre-checks, precharging certain power transfer system components, etc.

TRAILER HITCHING ASSISTANCE SYSTEM INCLUDING TRAILER TYPE IDENTIFICATION AND ADAPTIVE INTERFACE (18367057)

Main Inventor

Seyed Armin Raeis Hosseiny

Brief explanation

The patent application describes a system that helps align a vehicle with a trailer for hitching purposes. The system uses a controller to analyze image data and identify either the trailer or a specific feature of the trailer. If the trailer or the feature is found to be outside of a desired position area relative to the vehicle, the controller provides instructions for the vehicle to move in order to position the trailer or the feature within the desired position area. This response is triggered when the system detects that the user is having difficulty in aligning the trailer or the feature.

• The system uses image data to identify the trailer or a specific feature of the trailer.
• It determines if the trailer or the feature is not in the desired position area relative to the vehicle.
• The system provides instructions for the vehicle to move in order to align the trailer or the feature within the desired position area.
• The response is triggered when the system detects that the user is having difficulty in aligning the trailer or the feature.

Potential Applications

• Assisting drivers in aligning their vehicle with a trailer for hitching purposes.
• Improving the accuracy and efficiency of trailer hitching processes.
• Reducing the time and effort required to align a vehicle with a trailer.

Problems Solved

• Difficulty in aligning a vehicle with a trailer for hitching purposes.
• Human error in positioning the trailer or a specific feature of the trailer within the desired position area.
• Time-consuming and labor-intensive trailer hitching processes.

Benefits

• Increased accuracy and precision in aligning a vehicle with a trailer.
• Improved efficiency and reduced time required for trailer hitching.
• Minimized user difficulty and potential for human error in the alignment process.

Abstract

A system for assisting in aligning a vehicle for hitching with a trailer includes a controller that identifies at least one of the trailer or a coupling feature of the trailer within image data and determines that the at least one of the trailer or the coupling feature is outside of a target position area relative to the vehicle and outputs an instruction for movement of the vehicle determined to position the one of the trailer or the coupling feature within the target position area in response to identifying at least one indication of a user difficulty in positioning the one of the trailer or the coupling feature within the target position area.

UMBRELLA HOLDING ASSEMBLY (17809439)

Main Inventor

Cesar Navarro Cervera

Brief explanation

The patent application describes an umbrella holding assembly for a vehicle structure. The assembly includes a holder that can pivot and move to accommodate an umbrella. 

• The assembly includes a vehicle structure with an opening that provides access to a receiving space.
• The holder has a receiving feature that can pivot and is connected to the vehicle structure.
• The receiving feature has an inlet for receiving an umbrella and can pivot from a position within the receiving space to a position partially outside of it.
• The holder also includes a chute that can move relative to the receiving feature, retracting and extending as needed.
• An end cap is attached to the chute, distally from the receiving feature.
• The holder can be moved between a use condition and a stowed condition.

Potential applications of this technology:

• This umbrella holding assembly can be used in vehicles such as cars, buses, or trains to provide a convenient and secure way to store umbrellas.
• It can also be used in other structures, such as buildings or outdoor seating areas, where umbrellas may need to be stored.

Problems solved by this technology:

• This assembly solves the problem of finding a secure and easily accessible place to store umbrellas in vehicles or other structures.
• It prevents umbrellas from taking up unnecessary space or causing inconvenience to passengers or users.

Benefits of this technology:

• The assembly provides a compact and efficient way to store umbrellas, saving space and reducing clutter.
• It ensures that umbrellas are easily accessible when needed, preventing them from being misplaced or forgotten.
• The pivot and movement capabilities of the holder allow for flexibility in accommodating different sizes and types of umbrellas.

Abstract

An umbrella holding assembly includes a vehicle structure having a wall that defines an opening providing access to a receiving space, and a holder. The holder includes a receiving feature pivotably coupled to the vehicle structure and defining an inlet for receiving an umbrella. The receiving feature is operable to pivot relative to the vehicle structure through the opening from a first position to a second position. In the first position, the receiving feature is wholly within the receiving space. In the second position, the receiving feature is at least partially outside of the receiving space. The holder also includes a chute coupled to the receiving feature and operable to move relative to the receiving feature between retracted and extended positions. The holder further includes an end cap coupled to the chute distally from the receiving feature. The holder is movable between use and stowed conditions.

ENERGY ABSORBING STRUCTURE FOR VEHICLE (17851767)

Main Inventor

Mohamed Ridha Baccouche

Brief explanation

==Abstract==

An energy absorbing structure is described that connects two structures of a vehicle. The structure includes support beams and lattice arrays that provide strength and stability to the overall system.

Patent/Innovation Explanation

• The energy absorbing structure connects two structures of a vehicle, providing a secure connection between them.
• Support beams are located at each corner of the structure and extend in the longitudinal direction of the vehicle, ensuring stability and structural integrity.
• The support beams connect the first structure to the second structure, creating a strong bond between them.
• Lattice arrays are located at the sides of the structure, forming a periphery and adding additional strength to the overall system.
• Each lattice array connects adjacent support beams to each other, further enhancing the structural stability of the energy absorbing structure.

Potential Applications

• Automotive industry: This energy absorbing structure can be used in various vehicles, such as cars, trucks, and buses, to provide enhanced safety and protection in the event of a collision.
• Aerospace industry: The structure can be utilized in aircraft to improve crashworthiness and protect passengers during emergency landings or accidents.
• Construction industry: The energy absorbing structure can be incorporated into buildings and structures to enhance their resilience against earthquakes and other natural disasters.

Problems Solved

• Improved safety: The energy absorbing structure provides a strong connection between vehicle structures, reducing the risk of separation or collapse during accidents.
• Enhanced crashworthiness: The support beams and lattice arrays absorb and distribute impact forces, minimizing damage and protecting occupants.
• Structural stability: The design of the energy absorbing structure ensures stability and integrity, preventing deformation or failure under extreme conditions.

Benefits

• Increased passenger safety: The energy absorbing structure improves the overall safety of vehicles, reducing the risk of severe injuries or fatalities in accidents.
• Enhanced vehicle performance: The structure's strength and stability contribute to improved handling and maneuverability of vehicles.
• Versatile application: The energy absorbing structure can be implemented in various industries, providing benefits in different scenarios and environments.

Abstract

An energy absorbing structure connects a first structure of a vehicle to an adjacent second structure of the vehicle. The energy absorbing structure includes support beams and lattice arrays. Each support beam is located at a respective corner of the energy absorbing structure and extend in a longitudinal direction of the vehicle. The support beams connect the first structure to the second structure. The lattice arrays are located at respective sides of the energy absorbing structure and form a periphery of the energy absorbing structure. Each lattice array connects adjacent support beams to each other.

VEHICLE WIPER ASSEMBLY AND WIPER SECURING METHOD (17850288)

Main Inventor

Jose Garcia Crespo

Brief explanation

The abstract describes a wiper assembly for a window, which includes a bent arm and a wiper blade. The bent arm is designed to connect to a shaft of an actuator, and the wiper blade is slidably received within the channel of the bent arm. During the assembly process, the wiper blade is biased against the window.

• The wiper assembly includes a bent arm with a channel.
• The bent arm is connected to a shaft of an actuator.
• A wiper blade is slidably received within the channel of the bent arm.
• During assembly, the wiper blade is biased against the window.

Potential Applications

• Automotive industry: The wiper assembly can be used in vehicles to ensure clear visibility through the windshield during rain or snow.
• Building maintenance: The wiper assembly can be applied to windows in high-rise buildings to remove dirt and debris for better visibility.

Problems Solved

• Efficient wiping: The bent arm design allows for smooth and effective movement of the wiper blade across the window surface, ensuring optimal cleaning.
• Secure connection: The connection between the bent arm and the actuator shaft provides stability and reliability during operation.

Benefits

• Improved visibility: The wiper assembly ensures a clear view through the window by effectively removing water, dirt, and other obstructions.
• Easy installation: The method of securing the bent arm to the actuator shaft simplifies the assembly process.
• Durability: The secure connection and sliding mechanism of the wiper blade within the bent arm contribute to the longevity of the wiper assembly.

Abstract

A wiper assembly includes a bent arm providing a channel. The bent arm is configured to connect to a shaft of an actuator. The wiper assembly additionally includes a wiper blade slidably received within the channel. A method includes securing a bent arm to a shaft of an actuator, and biasing a wiper blade against a window during the securing.

METHODS AND APPARATUS TO REDUCE END OF STOP JERK (17850601)

Main Inventor

Alexandra Sharlow

Brief explanation

The patent application describes methods and systems to reduce the jerk experienced when a vehicle comes to a stop. Here is a simplified explanation of the abstract:

• The patent application discusses techniques to reduce the abrupt jerk experienced when a vehicle stops.
• It proposes a system that includes a user interface, a brake system, and a controller.
• The controller is responsible for detecting a command to engage the brake system at a specific pressure.
• It also estimates the time it will take for the vehicle to come to a complete stop.
• If the estimated time satisfies a predetermined threshold, the brake system is engaged at a lower pressure than the initially commanded pressure.

Potential applications of this technology:

• Automotive industry: This technology can be applied to various types of vehicles, including cars, trucks, and buses, to improve the comfort and safety of passengers during braking.
• Autonomous vehicles: The innovation can be particularly useful in autonomous vehicles, where smooth and controlled braking is crucial for passenger comfort and to avoid sudden movements that could impact the vehicle's stability.

Problems solved by this technology:

• Reducing jerk during braking: The technology addresses the issue of abrupt jerk experienced by passengers when a vehicle comes to a stop, which can be uncomfortable and potentially unsafe.
• Improving passenger comfort: By engaging the brake system at a lower pressure when the vehicle is close to stopping, the technology aims to provide a smoother and more comfortable braking experience.

Benefits of this technology:

• Enhanced passenger experience: By reducing jerk during braking, passengers will experience a smoother and more comfortable ride, leading to increased satisfaction.
• Improved safety: The technology helps to avoid sudden movements during braking, which can contribute to better vehicle stability and reduce the risk of accidents or injuries.

Abstract

Methods, apparatus, systems, and articles of manufacture to reduce end of stop jerk are disclosed. An example vehicle includes a user interface, a brake system, and a controller to execute instructions to detect a command to engage the brake system at a command brake pressure, estimate a time until the vehicle comes to a stop, and in response to determining that the time satisfies a time threshold, engage the brake system at a delivered brake pressure less than the command brake pressure.

SYSTEMS AND METHODS FOR CONTROLLING LONGITUDINAL ACCELERATION BASED ON LATERAL OBJECTS (17808422)

Main Inventor

Alice Kassar

Brief explanation

The patent application describes a system and method for controlling the acceleration of a vehicle during autonomous driving. Here are the key points:

• The system detects the lateral distance between the vehicle's trajectory and a nearby object.
• Based on this distance, the system determines whether to limit the vehicle's acceleration.
• If acceleration limiting is required, the system calculates the amount by which the acceleration should be limited based on the vehicle's trajectory and margin.
• The system then instructs the vehicle to perform autonomous driving operations while adhering to the limited acceleration.

Potential applications of this technology:

• Autonomous vehicles: The system can be used in self-driving cars to ensure safe acceleration while navigating through traffic.
• Delivery robots: Autonomous delivery robots can benefit from controlled acceleration to avoid collisions with pedestrians or obstacles.
• Industrial automation: This technology can be applied in automated vehicles used in warehouses or factories to prevent accidents during movement.

Problems solved by this technology:

• Collision avoidance: By limiting acceleration based on the lateral distance to nearby objects, the system helps prevent collisions and improves overall safety.
• Smooth driving experience: The controlled acceleration ensures a smoother and more comfortable ride for passengers, reducing jerky movements.

Benefits of this technology:

• Improved safety: By considering the lateral distance to objects, the system helps prevent accidents and reduces the risk of collisions.
• Enhanced efficiency: The system optimizes acceleration based on the vehicle's trajectory, leading to more efficient and controlled driving.
• Passenger comfort: The limited acceleration results in a smoother driving experience, enhancing passenger comfort during autonomous journeys.

Abstract

Disclosed herein are systems, methods, and computer program products for controlling acceleration of a vehicle. The methods comprising: detecting a lateral distance from a point on a trajectory of the vehicle to a first object the vehicle is expected to pass when following the trajectory; selecting whether acceleration limiting is to be performed by the vehicle based on the lateral distance; obtaining a margin of the vehicle defined by a sequence of points; obtaining an amount by which the acceleration of the vehicle is to be limited based on the trajectory and the margin of the vehicle, when a selection is made that acceleration limiting is to be performed by the vehicle; and causing the vehicle to perform operations for autonomous driving with limiting of acceleration by the obtained amount.

SYSTEMS AND METHODS FOR CONTROLLING LONGITUDINAL ACCELERATION BASED ON LATERAL OBJECTS (17808414)

Main Inventor

Alice Kassar

Brief explanation

The patent application describes a system and method for controlling the acceleration of a vehicle during autonomous driving. The system uses a computing device to detect the lateral distance between the vehicle's trajectory and a nearby object. Based on this distance, the system determines whether acceleration limiting is necessary. If acceleration limiting is required, the system calculates the amount by which the vehicle's acceleration should be limited. The computing device then instructs the vehicle to perform operations for autonomous driving while adhering to the limited acceleration.

• The system detects the lateral distance between the vehicle's trajectory and a nearby object.
• Based on the lateral distance, the system determines whether acceleration limiting is necessary.
• If acceleration limiting is required, the system calculates the amount by which the vehicle's acceleration should be limited.
• The system instructs the vehicle to perform operations for autonomous driving while adhering to the limited acceleration.

Potential Applications

• Autonomous vehicles: This technology can be applied to autonomous vehicles to ensure safe and controlled acceleration while navigating around objects.
• Collision avoidance systems: The system can be integrated into collision avoidance systems to prevent accidents by limiting acceleration when objects are detected nearby.

Problems Solved

• Safety during autonomous driving: By controlling the acceleration of the vehicle based on the proximity of nearby objects, this technology helps prevent collisions and ensures safe autonomous driving.
• Collision avoidance: The system addresses the problem of potential collisions by limiting acceleration when objects are detected nearby, reducing the risk of accidents.

Benefits

• Enhanced safety: By limiting acceleration based on the proximity of nearby objects, the system improves safety during autonomous driving and reduces the risk of accidents.
• Improved collision avoidance: The technology helps prevent collisions by automatically adjusting the vehicle's acceleration to maintain a safe distance from nearby objects.

Abstract

Disclosed herein are systems, methods, and computer program products for controlling acceleration of a vehicle. The methods comprising: detecting, by a computing device, a lateral distance from a point on a trajectory of the vehicle to a first object the vehicle is expected to pass when following the trajectory, the first object being located off of and to a side of the trajectory and the point representing a future location of the vehicle while passing the first object; selecting, by the computing device, whether acceleration limiting is to be performed by the vehicle based on the lateral distance; obtaining an amount by which the acceleration of the vehicle is to be limited, when a selection is made that acceleration limiting is to be performed by the vehicle; and causing, by the computing device, the vehicle to perform operations for autonomous driving with limiting of acceleration by the obtained amount.

ENHANCED STATIC OBJECT CLASSIFICATION USING LIDAR (17865240)

Main Inventor

Kevin Wyffels

Brief explanation

The patent application describes a system for classifying objects as either static or dynamic using Light Detection and Ranging (LIDAR) data. Here is a simplified explanation of the abstract:

• The system uses LIDAR data to determine the shape of an object at two different times.
• Based on the differences in the LIDAR data, the system generates a vector that represents the features of the object at each time.
• Using this vector, the system calculates the probability that the object is static.
• The system can then use this probability to control a machine or device.

Potential applications of this technology:

• Autonomous vehicles: The system can help autonomous vehicles determine if an object in their path is stationary or moving, allowing them to make appropriate decisions.
• Surveillance systems: The system can be used in surveillance systems to identify and track static objects, such as abandoned packages or suspicious items.
• Robotics: Robots can use this technology to differentiate between static and dynamic objects in their environment, enabling them to interact with their surroundings more effectively.

Problems solved by this technology:

• Accurate object classification: The system provides a reliable method for determining whether an object is static or dynamic, which is crucial for various applications.
• Improved decision-making: By accurately classifying objects, the system can help machines and devices make better decisions based on the nature of the objects they encounter.

Benefits of this technology:

• Enhanced safety: Autonomous vehicles can avoid collisions by accurately identifying stationary objects and adjusting their path accordingly.
• Efficient surveillance: Surveillance systems can quickly identify and track static objects, reducing false alarms and improving overall security.
• Improved robot interaction: Robots can interact more effectively with their environment by differentiating between static and dynamic objects, leading to improved performance and functionality.

Abstract

Devices, systems, and methods are provided for classifying detected objects as static or dynamic. A device may determine first light detection and ranging (LIDAR) data associated with a convex hull of an object at a first time, and determine second LIDAR data associated with the convex hull at a second time after the first time. The device may generate, based on the first LIDAR data and the second LIDAR data, a vector including values of features associated with the first convex hull and the second convex hull. The device may determine, based on the vector, a probability that the object is static. The device may operate a machine based on the probability that the object is static.

VALIDATING PROTOLANES WITH ACTOR BEHAVIOR FLOWCHARTS (17846652)

Main Inventor

George Peter Kenneth CARR

Brief explanation

The patent application describes a system, method, and computer program for validating protolanes. Protolanes are selected from a set of lanes in a geonet and are associated with flowcharts that represent conditions an actor may encounter when approaching the gates of the protolane. The method involves generating a graph that represents the actions of the actor based on the flowchart and validating the reasoning of the actor by testing their actions against the graph.

• The invention validates the actions and reasoning of actors approaching the gates of protolanes in a geonet.
• It involves generating a graph based on flowcharts associated with the protolanes to represent the actions of the actor.
• The actions of the actor are then tested against the graph to validate their reasoning.

Potential Applications

• Traffic management systems
• Autonomous vehicles
• Navigation systems

Problems Solved

• Ensures the actions and reasoning of actors approaching protolanes are validated.
• Helps in identifying any inconsistencies or errors in the flowcharts associated with the protolanes.
• Improves the reliability and safety of traffic management systems and autonomous vehicles.

Benefits

• Enhanced validation of actor actions and reasoning in traffic scenarios.
• Improved accuracy and reliability of navigation systems.
• Increased safety and efficiency in traffic management and autonomous vehicle operations.

Abstract

Disclosed herein are system, method, and computer program product aspects for validating protolanes. For example, the method includes determining a protolane level flowchart from one or more flowcharts corresponding to one or more gates of a protolane selected from a set of protolanes of a geonet, wherein the one or more flowcharts correspond to conditions that can be encountered by an actor approaching the corresponding one or more gates, and wherein the geonet comprises a plurality of lane segments associated with the set of protolanes. A graph through the protolane level flowchart is generated that corresponds to actions of an actor. Reasoning of the actor is validated by testing the actions of the actor against the graph through the protolane level flowchart.

SYSTEMS AND METHODS FOR CONTROLLING LONGITUDINAL ACCELERATION BASED ON LATERAL OBJECTS (17808403)

Main Inventor

Alice Kassar

Brief explanation

The patent application describes a system for controlling the acceleration of a vehicle based on the lateral distance between the vehicle and an object it is expected to pass while following a trajectory. The system determines whether acceleration limiting should be performed by the vehicle by comparing the lateral distance to a threshold value. The vehicle then performs operations for autonomous driving with or without acceleration limiting based on this determination.

• The system detects the lateral distance between the vehicle and an object it is expected to pass.
• It compares the lateral distance to a threshold value.
• Based on this comparison, the system decides whether acceleration limiting should be performed.
• The vehicle then performs operations for autonomous driving accordingly.

Potential Applications

• Autonomous vehicles: This technology can be used in autonomous vehicles to control their acceleration based on the proximity of objects.
• Collision avoidance systems: The system can be integrated into collision avoidance systems to help prevent accidents by adjusting the vehicle's acceleration.

Problems Solved

• Accurate control of vehicle acceleration: The system provides a method for controlling the acceleration of a vehicle based on the lateral distance to an object, ensuring safe and efficient driving.
• Collision prevention: By limiting acceleration when the lateral distance is below a certain threshold, the system helps prevent collisions with objects located off the trajectory.

Benefits

• Improved safety: By controlling acceleration based on the proximity of objects, the system enhances safety by reducing the risk of collisions.
• Efficient driving: The system optimizes acceleration by adjusting it according to the lateral distance, leading to more efficient driving and potentially saving fuel.

Abstract

Disclosed herein are systems, methods, and computer program products for controlling acceleration of a vehicle. The methods comprising: detecting a lateral distance from a point on a trajectory of the vehicle to an object the vehicle is expected to pass when following the trajectory, the object being located off of and to a side of the trajectory and the point representing a future location of the vehicle while passing the object; comparing the lateral distance to a threshold value; selecting whether acceleration limiting is to be performed by the vehicle based on whether the lateral distance is less than the threshold value; and causing the vehicle to perform operations for autonomous driving with or without acceleration limiting based on said selecting.

BODY ON FRAME VEHICLE FRONT END STRUCTURE (17846749)

Main Inventor

Dragan B. Stojkovic

Brief explanation

The patent application describes a body on frame vehicle with left and right front tubes and a lower support. The front tubes extend above the front wheel wells and terminate at the front ends. The lower support has a lateral portion and left and right riser portions. The riser portions are attached to the front tubes near the front ends.

• The invention is a design for a body on frame vehicle.
• It includes front tubes that extend above the front wheel wells and terminate at the front ends.
• A lower support is provided with a lateral portion and left and right riser portions.
• The riser portions are affixed to the front tubes near the front ends.

Potential Applications

• Automotive industry
• Vehicle manufacturing companies

Problems Solved

• Provides structural support to the body on frame vehicle.
• Ensures stability and strength of the vehicle frame.

Benefits

• Improved structural integrity of the vehicle.
• Enhanced stability and safety.
• Simplified design and manufacturing process.

Abstract

A body on frame vehicle includes left and right front tubes and a lower support. The left front tube extends above a left front wheel well of the body on frame vehicle and terminates in a forward direction at a left forward end. The right front tube extends above a right front wheel well of the body on frame vehicle and terminates in the forward direction at a right forward end. The lower support includes a lateral portion, left riser portion, and right riser portion. A left end of the lower support extends upward from the lateral portion to form the left riser portion and a right end of the lower support extends upward from the lateral portion to form the right riser portion. The left and right riser portions are affixed to the left and right front tube proximate the left forward end and the right forward end, respectively.

FASTENER FOR FRAME STRUCTURE OF VEHICLE (17847010)

Main Inventor

S.M. Iskander Farooq

Brief explanation

The abstract describes a fastener that consists of a head, a tail, and a body. The body has two portions - a lattice structure and a solid structure. The solid structure is longer than the lattice structure. The lattice structure is designed to break under a specific load condition.

• The fastener has a head, tail, and body.
• The body is divided into two portions - lattice and solid structures.
• The solid structure is longer than the lattice structure.
• The lattice structure is engineered to fracture under a predetermined load condition.

Potential Applications

• Manufacturing and construction industries
• Automotive and aerospace industries
• Any application requiring fastening of components

Problems Solved

• Provides a fastener that can withstand specific load conditions
• Offers a design that allows controlled fracture of the lattice structure
• Enables easy disassembly and reassembly of components

Benefits

• Increased safety and reliability in fastening applications
• Simplified assembly and disassembly processes
• Potential cost savings in maintenance and repair

Abstract

A fastener includes a head, a tail, and a body disposed between the head and the tail. The body includes a first portion that includes a lattice structure and a second portion that includes a solid structure. The second portion has an axial length that is greater than an axial length of the first portion. The lattice structure is configured to fracture under a predetermined loading condition.

METHODS AND SYSTEMS FOR PRECHAMBER (17809530)

Main Inventor

Thomas G. Leone

Brief explanation

The abstract of the patent application describes a method and system for a pre-chamber in a combustion engine. The system includes a pre-chamber and a piston in a combustion chamber, with features designed to direct squish flow into the pre-chamber.

• The patent application is for a pre-chamber system in a combustion engine.
• The system includes a pre-chamber and a piston in a combustion chamber.
• The piston and/or combustion chamber have features that force squish flow into the pre-chamber.
• The purpose of the pre-chamber is to improve combustion efficiency and performance.
• The system aims to enhance fuel-air mixing and reduce emissions.
• The invention may be applicable to various types of combustion engines, such as gasoline or diesel engines.

Potential Applications

The technology described in the patent application has potential applications in various industries and sectors, including:

• Automotive industry: The pre-chamber system can be implemented in gasoline or diesel engines to improve fuel efficiency, reduce emissions, and enhance overall engine performance.
• Power generation: The technology can be utilized in power plants or generators to optimize combustion processes, leading to increased efficiency and reduced environmental impact.
• Marine industry: The pre-chamber system can be integrated into marine engines to enhance fuel-air mixing, resulting in improved efficiency and reduced emissions.

Problems Solved

The pre-chamber system described in the patent application addresses several problems in combustion engines, including:

• Inefficient combustion: The system aims to improve combustion efficiency by directing squish flow into the pre-chamber, enhancing fuel-air mixing and promoting more complete combustion.
• High emissions: By optimizing combustion processes, the technology helps reduce emissions of harmful pollutants, contributing to environmental sustainability.
• Poor engine performance: The pre-chamber system enhances overall engine performance by improving fuel efficiency, increasing power output, and reducing engine knock.

Benefits

The technology presented in the patent application offers several benefits, including:

• Improved fuel efficiency: The pre-chamber system enhances fuel-air mixing, leading to more efficient combustion and reduced fuel consumption.
• Reduced emissions: By promoting complete combustion, the system helps reduce emissions of pollutants, contributing to environmental sustainability and meeting regulatory requirements.
• Enhanced engine performance: The technology improves overall engine performance by increasing power output, reducing engine knock, and optimizing combustion processes.
• Versatility: The invention can be applied to various types of combustion engines, making it adaptable to different industries and sectors.

Abstract

Methods and systems are provided for a pre-chamber. In one example, a system includes a pre-chamber and a piston arranged in a combustion chamber. The piston and/or combustion chamber comprise one or more features configured to force squish flow into the pre-chamber.

FLEET MANAGEMENT SYSTEMS AND METHODS FOR PROVIDING OPTIMIZED CHARGING PATHS (17849813)

Main Inventor

Stuart C. SALTER

Brief explanation

The patent application describes systems and methods for optimizing charge planning strategies for electric vehicles in a fleet. 

• The approach utilizes a multi-objective approach to charge planning, considering factors such as time, wear, and cost.
• Each factor is assigned a cost value to determine the optimal charging strategy.
• The systems and methods leverage charging at fleet depots, public charging stations, and private residential locations.
• The technology solves the charging path optimization problem for each vehicle in the fleet.

Potential Applications

This technology has potential applications in various industries and sectors, including:

• Electric vehicle fleet management companies
• Transportation and logistics companies with electric vehicle fleets
• Municipalities and government agencies managing public transportation systems
• Ride-sharing and car-sharing companies operating electric vehicles

Problems Solved

The technology addresses several challenges and problems related to electric vehicle charging, including:

• Optimizing charge planning to minimize charging time and costs
• Maximizing the lifespan of electric vehicle batteries by considering wear and tear
• Efficiently utilizing charging infrastructure at fleet depots, public stations, and private locations
• Balancing the charging needs of multiple vehicles in a fleet to avoid congestion and delays

Benefits

The use of optimized, multi-objective charge planning strategies for electric vehicle fleets offers several benefits, including:

• Reduced charging time and costs, leading to improved operational efficiency
• Extended battery lifespan, resulting in lower maintenance and replacement costs
• Enhanced utilization of charging infrastructure, reducing the need for additional infrastructure investments
• Improved fleet management and scheduling, ensuring timely and reliable transportation services

Abstract

Systems and methods are disclosed for providing optimized, multi-objective charge planning strategies for electrified vehicles of a vehicle fleet. The proposed systems and methods may utilize a multi-objective approach to charge planning. The multi-objective approach may account for factors such as time, wear, and cost to charge by assigning a cost value to each factor. The proposed systems and methods may further leverage charging at fleet owned/managed depots, public charging stations, and private, residential charging locations when solving the charging path optimization problem for each vehicle of the fleet.

SYSTEM AND METHOD FOR DIAGNOSING AN EXHAUST GAS SENSOR (17809233)

Main Inventor

Jose Francisco Martinez Leyva

Brief explanation

The abstract describes a method and system for monitoring an exhaust gas sensor in an engine exhaust. The method involves estimating the time constant of an exhaust gas oxygen sensor based on the correlation between the rate of change of a Lambda value (a measure of air-fuel ratio) and a system time constant.

• The method and system monitor an exhaust gas sensor in an engine exhaust.
• The method estimates the time constant of an exhaust gas oxygen sensor.
• The estimation is based on the correlation between the rate of change of a Lambda value and a system time constant.

Potential applications of this technology:

• Automotive industry: This technology can be used in vehicles to monitor and optimize the performance of exhaust gas sensors, ensuring efficient combustion and reducing emissions.
• Environmental monitoring: The method and system can be applied in monitoring systems for industrial exhausts, helping to maintain compliance with environmental regulations and reduce pollution.

Problems solved by this technology:

• Inaccurate sensor readings: By estimating the time constant of the exhaust gas oxygen sensor, this technology can help identify and correct any inaccuracies in sensor readings, ensuring accurate air-fuel ratio measurements.
• Emission control: The method and system enable continuous monitoring of exhaust gas sensors, allowing for timely detection and correction of any issues that may lead to increased emissions.

Benefits of this technology:

• Improved engine performance: By accurately monitoring the exhaust gas sensor, this technology can optimize the air-fuel ratio, leading to improved engine efficiency and performance.
• Emission reduction: Continuous monitoring and adjustment of the exhaust gas sensor can help reduce emissions, contributing to environmental sustainability and compliance with emission standards.

Abstract

A method and system for monitoring an exhaust gas sensor coupled in an engine exhaust is provided. In one example, the method determines an estimate of an exhaust gas oxygen sensor time constant according to a correlation between a rate of change of a Lambda value and a system time constant.

VEHICLE ULTRASONIC SENSOR DETECTION (17746143)

Main Inventor

Rajiv Sithiravel

Brief explanation

The patent application describes a computer system that uses ultrasonic sensors on a vehicle to determine the position of objects around it. 

• The computer system includes a processor and memory.
• Ultrasonic sensors on the vehicle collect range data, which includes distances traveled by pulses emitted and received by the sensors.
• The system uses this range data to determine two ellipses, representing the possible positions of objects.
• The system then calculates the intersections of these ellipses to identify the actual positions of objects.
• Some intersections may be excluded based on the fields of view of the sensors.
• Finally, the system uses the non-excluded intersections to activate a component of the vehicle.

Potential Applications

• Autonomous vehicles: This technology can be used in self-driving cars to accurately detect and track objects around the vehicle.
• Collision avoidance systems: The system can help in detecting potential collisions and activating safety measures to prevent accidents.
• Parking assistance: By accurately determining the positions of objects, the system can assist in parking by providing guidance and alerts.

Problems Solved

• Accurate object detection: The system solves the problem of accurately determining the positions of objects around a vehicle using ultrasonic sensors.
• Overlapping fields of view: By considering the overlapping fields of view of the sensors, the system can exclude unreliable intersection points, improving the accuracy of object detection.

Benefits

• Improved safety: By accurately detecting and tracking objects, the system can help in preventing accidents and improving overall road safety.
• Enhanced autonomous capabilities: The technology enables autonomous vehicles to make informed decisions based on accurate object detection, improving their ability to navigate and interact with the environment.
• Efficient parking: The system can assist drivers in parking by providing accurate guidance, reducing the time and effort required for parking maneuvers.

Abstract

A computer includes a processor and a memory, and the memory stores instructions executable to receive range data from a plurality of ultrasonic sensors on a vehicle, determine two ellipses from respective pulses of the range datadetermine a plurality of intersections of the two ellipses, exclude a subset of the intersections, and actuate a component of the vehicle based on the nonexcluded intersections. The ultrasonic sensors have respective fields of view, the fields of view overlap, and the range data includes distances traveled by pulses emitted by the ultrasonic sensors and received by the ultrasonic sensors. Each pulse is emitted by a different one of the ultrasonic sensors than received that pulse. Excluding the subset of the intersections is based on the fields of view.

TESTING REUSE ACROSS PROTOLANE FAMILIES (17846656)

Main Inventor

George Peter Kenneth CARR

Brief explanation

The patent application describes a system, method, and computer program for testing reuse across different protolane families. Protolanes are flowcharts used in testing electronic devices.

• The method involves comparing two protolane level flowcharts to identify a common graph that represents a portion of both flowcharts.
• The flowcharts belong to different protolane families, which are groups of related protolanes.
• The common graph allows grouping of protolanes from different families based on shared conditions.
• Tests can be applied to the grouped protolanes, targeting the conditions represented by the common graph.

Potential Applications

• This technology can be used in the testing phase of electronic device development.
• It can help streamline the testing process by identifying common elements across different protolane families.
• The system can be integrated into existing testing frameworks to improve efficiency and accuracy.

Problems Solved

• Testing electronic devices often involves repetitive tasks, which can be time-consuming and prone to errors.
• The patent application addresses the challenge of reusing tests across different protolane families.
• By identifying common elements and conditions, the system simplifies the testing process and reduces duplication of effort.

Benefits

• The system improves the efficiency of testing by allowing reuse of tests across different protolane families.
• It reduces the risk of errors and inconsistencies in the testing process.
• By automating the identification and grouping of protolanes, the system saves time and resources.

Abstract

Disclosed herein are system, method, and computer program product aspects for testing reuse across protolane families. For example, the method includes comparing a first protolane level flowchart to a second protolane level flowchart to determine a common graph corresponding to a portion of the first protolane level flowchart and a portion of the second protolane level flowchart. A first protolane corresponding to the first protolane level flowchart and a second protolane corresponding to the second protolane level flowchart within a protolane family are grouped based on the common graph, wherein a test directed to conditions of the common graph is applicable to the portion of the first protolane level flowchart and the portion of the second protolane level flowchart.

VEHICLE POSE MANAGEMENT (17745920)

Main Inventor

Sushruth Nagesh

Brief explanation

The abstract describes a computer system that receives image frames from cameras showing a vehicle and determines its position and orientation in each frame. The system initializes multiple possible poses for the vehicle and calculates the best pose by minimizing the difference between the observed and estimated pixel coordinates. The system then selects the pose with the lowest error.

• The computer system includes a processor and memory.
• It receives image frames from cameras showing a vehicle.
• It determines the baseline pixel coordinate for the vehicle in each frame.
• It initializes multiple possible poses for the vehicle in a preset pattern.
• For each pose, it calculates the final pose by minimizing the difference between observed and estimated pixel coordinates.
• The estimated pixel coordinates are obtained by reprojecting the vehicle onto the image frame.
• The system selects the final pose with the lowest error.

Potential Applications

• Autonomous vehicles: This technology can be used in self-driving cars to accurately determine the position and orientation of the vehicle in real-time.
• Augmented reality: It can be applied in AR applications to precisely overlay virtual objects onto real-world scenes.
• Robotics: The system can be used in robotic systems to accurately track the position and orientation of objects.

Problems Solved

• Accurate pose estimation: The system solves the problem of accurately determining the position and orientation of a vehicle in image frames.
• Reprojection error minimization: By minimizing the reprojection error, the system ensures that the estimated pose closely matches the observed pose.

Benefits

• Improved accuracy: The system provides more accurate pose estimation by considering multiple possible poses and minimizing the reprojection error.
• Real-time tracking: The technology enables real-time tracking of the vehicle's position and orientation.
• Versatile applications: The system can be applied in various fields such as autonomous vehicles, augmented reality, and robotics.

Abstract

A computer includes a processor and a memory, and the memory stores instructions executable by the processor to receive at least one image frame from at least one camera, the at least one image frame showing a vehicle; determine at least one baseline pixel coordinate within one image frame for the vehicle; initialize a plurality of initial poses for the vehicle in a preset pattern; for each initial pose, determine a respective final pose by minimizing a reprojection error between the at least one baseline pixel coordinate and at least one respective estimated pixel coordinate, the at least one respective estimated pixel coordinate resulting from reprojecting the vehicle to pixel coordinates in the one image frame; and select a first final pose from the final poses, the first final pose having the lowest minimized reprojection error of the final poses.

AUTOMATICALLY GENERATING MACHINE-LEARNING TRAINING DATA (17850241)

Main Inventor

Robert Parenti

Brief explanation

The abstract describes a computer system that uses environmental and non-environmental data recorded by sensors on a vehicle to train a machine-learning program. The program processes environmental data by using the recorded data as training data and the annotations derived from the non-environmental data as ground truth.

• The computer system includes a processor and memory.
• Environmental data is recorded by an environmental sensor on the vehicle.
• Non-environmental data is also recorded on the vehicle independently of the environmental data.
• The system adds annotations derived from the non-environmental data to the environmental data.
• A machine-learning program is trained to process second environmental data.
• The first environmental data is used as training data for the machine-learning program.
• The annotations serve as ground truth for the first environmental data.

Potential Applications

• Autonomous vehicles: The technology can be used to train machine-learning algorithms for autonomous vehicles, improving their ability to understand and navigate the environment.
• Environmental monitoring: The system can be applied to analyze environmental data collected by sensors in various settings, such as weather monitoring or pollution detection.
• Predictive maintenance: By analyzing environmental data and correlating it with non-environmental data, the system can help predict and prevent potential vehicle failures or maintenance needs.

Problems Solved

• Lack of labeled ground truth data: The system addresses the challenge of obtaining accurate ground truth data for training machine-learning algorithms by using annotations derived from non-environmental data.
• Integration of environmental and non-environmental data: The system combines different types of data recorded on a vehicle to provide a comprehensive understanding of the environment, enabling more accurate analysis and predictions.

Benefits

• Improved machine-learning training: By using annotations derived from non-environmental data, the system enhances the training process, leading to more accurate and reliable machine-learning models.
• Enhanced environmental analysis: The integration of environmental and non-environmental data allows for a deeper understanding of the environment, enabling better decision-making and analysis.
• Predictive capabilities: The system's ability to process environmental data and predict outcomes can be leveraged in various applications, such as autonomous vehicles or predictive maintenance, leading to increased safety and efficiency.

Abstract

A computer includes a processor and a memory, and the memory stores instructions executable by the processor to receive first environmental data recorded by an environmental sensor on board a vehicle, receive nonenvironmental data recorded on board the vehicle independently of the first environmental data, add a plurality of annotations derived from the nonenvironmental data to the environmental data, and train a machine-learning program to process second environmental data by using the first environmental data as training data and the annotations as ground truth for the first environmental data.

MULTI-FUNCTIONAL SUPPORTED ANODE AND CATHODES (17851298)

Main Inventor

Eunsung LEE

Brief explanation

The abstract describes a hybrid positive electrode active material for use in batteries. The material consists of two types of positive electrode active powders, with the first powder having smaller particle size than the second powder. The particles of the second powder are in contact with multiple particles of the first powder.

• The hybrid positive electrode active material consists of two types of positive electrode active powders.
• The first positive electrode active powder has smaller particle size than the second positive electrode active powder.
• Each particle of the second positive electrode active powder is in contact with multiple particles of the first positive electrode active material.

Potential applications of this technology:

• Battery technology
• Energy storage systems
• Electric vehicles
• Portable electronic devices

Problems solved by this technology:

• Improves the performance and efficiency of batteries
• Enhances the energy density and power density of batteries
• Increases the lifespan and cycle life of batteries

Benefits of this technology:

• Improved battery performance and efficiency
• Higher energy density and power density
• Longer battery lifespan and cycle life

Abstract

A hybrid positive electrode active material includes a first positive electrode active powder and a second positive electrode active powder. Each particle of the second positive electrode active powder contacts a plurality of particles of the first positive electrode active material. Characteristically, the average particle size of the first positive electrode active powder is smaller than the average particle size of the second positive electrode active powder.

PRESSURIZED FUEL CELL COOLING SYSTEM (18314296)

Main Inventor

Jan MEHRING

Brief explanation

The patent application describes a fuel cell system that includes a fuel cell, a cooling system, a supply system, and a valve. The cooling system is connected to the fuel cell and includes a heat exchanger, a coolant pump, and a coolant reservoir. The supply system is responsible for supplying a gas containing oxygen to the fuel cell. The valve is positioned in a connecting line between the cooling system and the supply system and is designed to limit the pressure difference between the gas supplied to the fuel cell and the pressure within the cooling system.

• The fuel cell system includes a fuel cell, cooling system, supply system, and valve.
• The cooling system is connected to the fuel cell and consists of a heat exchanger, coolant pump, and coolant reservoir.
• The supply system is responsible for supplying a gas containing oxygen to the fuel cell.
• The valve is positioned in the connecting line between the cooling system and the supply system.
• The valve's purpose is to limit the pressure difference between the gas supplied to the fuel cell and the pressure within the cooling system.

Potential Applications

• Automotive industry for fuel cell vehicles.
• Power generation for remote locations or backup power.
• Portable power sources for camping or outdoor activities.

Problems Solved

• Prevents excessive pressure difference between the gas supplied to the fuel cell and the cooling system.
• Helps maintain optimal operating conditions for the fuel cell system.
• Reduces the risk of damage or failure due to pressure imbalances.

Benefits

• Improved efficiency and performance of the fuel cell system.
• Enhanced safety by preventing pressure imbalances.
• Extended lifespan of the fuel cell system components.
• Greater control and stability in the operation of the fuel cell system.

Abstract

A fuel cell system includes a fuel cell, a cooling system fluidly coupled to the fuel cell and having a heat exchanger, a coolant pump, and a coolant reservoir fluidly coupled to the heat exchanger and the coolant pump, a supply system configured to supply a gas containing oxygen to the fuel cell, and a valve positioned in a connecting line between the cooling system and the supply system, the valve operable to limit a pressure difference between pressure of the gas supplied to the fuel cell and pressure within the cooling system.

SYSTEMS AND METHODS FOR INFLUENCING BATTERY CELL CYCLE LIFE BY VARYING COMPRESSION FORCE (17846141)

Main Inventor

Minghong LIU

Brief explanation

The patent application describes a battery charging system that can influence the lifespan of battery cells by adjusting the compression force applied to them during charging.

• The system includes a battery array, a compression device, and a control module.
• The compression device applies a compression force to the battery array during charging events.
• The control module is programmed to control the compression device.
• During low charging rate conditions, a first compression force is applied.
• During high charging rate conditions, a second, different compression force is applied.

Potential Applications

• Electric vehicles: This technology can be used in electric vehicles to optimize the charging process and extend the lifespan of the battery cells.
• Renewable energy storage: Battery systems used for storing renewable energy can benefit from this technology to improve their performance and longevity.
• Portable electronics: The innovation can be applied to battery charging systems in smartphones, laptops, and other portable devices to enhance battery life.

Problems Solved

• Battery cell degradation: By adjusting the compression force during charging, the system can help mitigate the degradation of battery cells, extending their lifespan.
• Inefficient charging: The technology addresses the issue of inefficient charging by optimizing the compression force based on the charging rate, ensuring more effective and faster charging.

Benefits

• Prolonged battery lifespan: By varying the compression force, the system can help increase the cycle life of battery cells, reducing the need for frequent replacements.
• Improved charging efficiency: The technology ensures that the compression force is optimized for different charging rates, resulting in more efficient and faster charging.
• Enhanced battery performance: By mitigating cell degradation, the system can maintain the performance and capacity of the battery cells over a longer period of time.

Abstract

Battery charging systems and methods are disclosed for influencing battery cell cycle life by varying a compression force applied to the battery cells during charging events. An exemplary battery charging system may include a battery array, a compression device configured to apply a compression force to the battery array during a charging event, and a control module. The control module may be programmed to control the compression device to apply a first compression force during a low charging rate condition and to apply a second, different compression force during a high charging rate condition

ROTOR POSITION-BASED RAMP RATE TO REDUCE VEHICLE HARSHNESS DURING ACTIVE DISCHARGE (17851963)

Main Inventor

Ji Wu

Brief explanation

The abstract of the patent application describes a controller that generates a current command for an inverter in a vehicle, based on the deactivation signal and disconnection of the traction battery. The current command includes a ramp portion that determines the rate of change in current magnitude, which is dependent on the electric angle between the rotor and stator of an electric machine.

• The controller responds to a signal indicating deactivation of a vehicle and disconnection of the traction battery from an inverter.
• It generates a d-axis current command for the inverter.
• The current command includes a ramp portion that determines the rate of change in current magnitude.
• The rate of change in current magnitude is dependent on the electric angle between the rotor and stator of an electric machine.

Potential Applications

• Electric vehicles
• Hybrid vehicles
• Electric machinery and equipment

Problems Solved

• Efficient and controlled deactivation of a vehicle
• Proper disconnection of the traction battery from the inverter
• Maintaining stability and safety during the deactivation process

Benefits

• Improved control and efficiency during vehicle deactivation
• Reduced risk of damage to the inverter and electric machine
• Enhanced safety and stability during the disconnection process

Abstract

A controller, responsive to a signal indicating deactivation of a vehicle and disconnection of a traction battery from an inverter, generates a d-axis current command for the inverter having a ramp portion that defines a rate of change in current magnitude that depends on an electric angle between a rotor and stator of an electric machine.

Method and System for Active Detection of Rotor Magnet Temperature (17851755)

Main Inventor

Jonathan Hair

Brief explanation

The abstract of the patent application describes a controller that can detect the temperature of a rotor magnet in a motor by actively detecting the back electromotive force (BEMF) voltage. The controller achieves this by injecting a known quantity of current into the motor's d-axis while the motor is spinning but not producing any torque. By using a quadrature-axis voltage equation, the controller can solve for the BEMF voltage using the known voltage command, current, and q-axis reactance. The rotor magnet temperature is then determined based on the BEMF voltage.

• The controller detects rotor magnet temperature based on actively detected BEMF voltage.
• It injects a known quantity of current into the motor's d-axis while the motor is spinning but not producing torque.
• The BEMF voltage is determined using a quadrature-axis voltage equation.
• The known voltage command, current, and q-axis reactance are used to solve for the BEMF voltage.
• The rotor magnet temperature is then determined based on the BEMF voltage.

Potential Applications

• Motor temperature monitoring and control in various industries such as automotive, manufacturing, and robotics.
• Improved efficiency and performance of motors by allowing real-time temperature monitoring.

Problems Solved

• Accurate and real-time detection of rotor magnet temperature in motors.
• Elimination of the need for additional temperature sensors or probes.
• Enhanced control and protection of motors by monitoring temperature.

Benefits

• Cost-effective solution for temperature monitoring in motors.
• Improved motor performance and efficiency.
• Early detection of overheating or potential failures.
• Simplified motor control system without the need for additional temperature sensors.

Abstract

A controller detects a rotor magnet temperature based on an actively detected back electromotive force (BEMF) voltage of the motor. The controller detects the BEMF voltage by commanding the injection of a direct-axis (d-axis) current into the motor while the motor is spinning but otherwise commanding no torque. The controller actively detects the BEMF voltage in that the controller purposely injects a known quantity of d-axis current at a chosen time during which the controller detects or is aware that the motor is commanding no torque. Using a quadrature-axis (q-axis) voltage equation, which describes the relationship between a voltage command, the current, the BEMF voltage, and reactance in the q-axis, the controller solves for the BEMF voltage with the voltage command, the current, and the q-axis reactance being known to the controller. The controller detects the rotor magnet temperature based on the BEMF voltage.