GM GLOBAL TECHNOLOGY OPERATIONS LLC patent applications published on November 30th, 2023

Summary of the patent applications from GM GLOBAL TECHNOLOGY OPERATIONS LLC on November 30th, 2023

GM Global Technology Operations LLC has filed several recent patents related to power control systems for electric vehicles, stators for electric machines, thermally conductive brackets, all-solid-state electrochemical batteries, electrodes for electrochemical cells, vehicle diagnostic methods and systems, floating 3D image displays, and testers for electrical components.

Summary of Recent Patents by GM Global Technology Operations LLC:

- Power Control System for Electric Vehicle: The patent describes a power control system for an electric vehicle that includes multiple power inverters connected to a battery system. A controller determines the switching frequency and phase offsets for the electric machines, allowing for efficient power control and distribution.

- Stator for Electric Machine: The patent application describes an electric machine with a housing and a stator core. A thermal bridge made of a non-magnetic material connects the stator core to the inner surface of the housing, allowing for efficient heat transfer and cooling of the electric machine.

- Thermally Conductive Bracket: The patent application describes a thermally conductive bracket designed for use in a vehicle. The bracket facilitates the transfer of heat from a busbar to a cold plate, improving cooling efficiency for multiple battery cells connected to the busbar.

- All-Solid-State Electrochemical Battery: The patent application describes an all-solid-state electrochemical battery with a positive electrode, a negative electrode, and a solid-state electrolyte layer. The positive electrode contains a positive electroactive material and a solid-state electrolyte material, allowing for improved battery performance and longevity.

- Electrode for Electrochemical Cell: The patent application describes an electrode for an electrochemical cell that cycles lithium ions. The electrode contains a silicon-containing electroactive material and three different types of carbon additives, improving the performance and stability of the electrochemical cell.

- Vehicle Diagnostic Methods and Systems: The patent application is about vehicle diagnostic methods and systems that provide step-by-step troubleshooting guidance. The goal is to provide predictive troubleshooting guidance to help efficiently resolve vehicle faults.

- Floating 3D Image Display: The patent application describes a system for creating a floating 3D image display inside a vehicle for multiple passengers. The system includes a display that projects a multiplexed hologram with multiple 3D holographic images, providing an immersive visual experience for passengers.

- Tester for Electrical Components: The abstract describes a tester for electrical components that has a database of testing specifications. The tester identifies the connected component, retrieves its testing specifications, and outputs an indication of the test result.

Notable Applications:

- Power control system for efficient power distribution in electric vehicles. - Stator with thermal bridge for improved cooling of electric machines. - Thermally conductive bracket for efficient heat transfer in vehicle battery systems. - All-solid-state electrochemical battery for improved performance and longevity. - Electrode design for enhanced stability and performance of electrochemical cells. - Vehicle diagnostic methods and systems for efficient troubleshooting. - Floating 3D image display for immersive visual experience in vehicles. - Tester for electrical components with database of testing specifications.

Patent applications for GM GLOBAL TECHNOLOGY OPERATIONS LLC on November 30th, 2023

METHODS FOR EXTRUDING COARSE-GRAINED, LOW ALUMINUM CONTENT MAGNESIUM ALLOYS (17872766)

Main Inventor

Henry ZHAN

Brief explanation

- The patent application describes a method of forming an extruded billet from a coarse-grained magnesium alloy billet.

- The coarse-grained magnesium alloy billet has an average grain size of at least 800 μm and a low aluminum content. - The method involves extruding the coarse-grained magnesium alloy billet at temperatures between 300°C and 360°C. - The resulting extruded billet may have a plurality of twins with lenticular morphology. - These twins occupy at least 20% of the total area of the extruded billet.

Abstract

The present disclosure provides a method of forming an extruded billet from a coarse-grained magnesium alloy billet. The method includes extruding the coarse-grained magnesium alloy biller at temperatures greater than or equal to about 300° C. to less than or equal to about 360° C. to from the extruded billet. The coarse-grained magnesium alloy billet has an average grain size greater than or equal to about 800 μm, and has a low aluminum content. The coarse-grained magnesium alloy billet includes greater than or equal to about 0.5 wt. % to less than or equal to about 3 wt. % of aluminum. The extruded billet may have a plurality of twins with lenticular morphology, which occupies an area fraction greater than or equal to about 20% of a total area of the extruded billet.

SYSTEMS AND METHODS FOR DETECTING CONTACT DURING A PROCESS (17664720)

Main Inventor

Joseph Gerard Lovasz

Brief explanation

The patent application describes a system and method for detecting contact between a manufacturing apparatus and an article being worked upon by the apparatus.

• The system includes a manufacturing apparatus, a signal transmitter, a signal receiver, and a signal processor.
• The manufacturing apparatus performs a process on the article.
• The signal transmitter applies an input signal to the article during the process, which is conducted through the article.
• The signal receiver monitors a first component of the manufacturing apparatus to detect conduction of the input signal through the component during the process.
• The signal processor determines whether contact has occurred between the first component of the manufacturing apparatus and the article based on the detection of the input signal by the signal receiver.
• This system helps in detecting any unintended contact between the manufacturing apparatus and the article being worked upon.
• It can prevent damage to the article and improve the overall quality of the manufacturing process.
• The system can be used in various industries where precision and accuracy are crucial, such as automotive, electronics, and aerospace.

Abstract

Systems and methods are provided for detecting contact between a manufacturing apparatus and an article being worked upon by the manufacturing apparatus. Vehicles that include the article are also provided. The system includes the manufacturing apparatus configured to perform a process on the article, a signal transmitter configured to apply an input signal to the article with during the process such that the input signal is conducted through the article, a signal receiver configured to monitor a first component of the manufacturing apparatus to detect conduction of the input signal through the first component with during the process, and a signal processor configured to determine whether contact has occurred between the first component of the manufacturing apparatus and the article based on the detection of the input signal by the signal receiver.

STRUCTURAL PANORAMIC WINDSHIELD AND ROOF (17825041)

Main Inventor

Bradley Allen NEWCOMB

Brief explanation

The patent application describes a windshield and roof system for a vehicle.

• The system includes a transparent windshield made of glass.
• There is a front cross-member that extends between the A-pillars of the vehicle, located behind the windshield.
• The front cross-member has a thickness of less than 50mm in the longitudinal direction of the vehicle.
• A transparent roof portion is located behind the windshield.
• The windshield and roof portion are joined together with the front cross-member.

Abstract

A windshield and roof system of a vehicle includes: a windshield that includes glass and that is transparent; a front cross-member that extends laterally between A-pillars of the vehicle, that is disposed rearward of the windshield, and that has a thickness in a longitudinal direction of the vehicle of less than 50 millimeters (mm); and a roof portion that is transparent, that is located rearward of the windshield, where the windshield and the roof portion are joined with the front cross-member.

SYSTEM FOR ESTIMATING VEHICLE VELOCITY BASED ON DATA FUSION (17824444)

Main Inventor

Hualin Tan

Brief explanation

The patent application describes a system for estimating the lateral velocity and longitudinal velocity of a vehicle using multiple sensors and controllers.

• The system includes sensors that monitor data related to the vehicle's travel state.
• The controllers receive this data from the sensors and estimate an initial state of the vehicle based on it.
• The controllers then combine the data from the sensors with the initial estimated state to determine the lateral velocity and longitudinal velocity of the vehicle.
• This is done using a single state estimation scheme, which simplifies the process.
• The innovation allows for accurate estimation of the vehicle's velocity using a combination of sensor data and initial estimates.

Abstract

A system for estimating a lateral velocity and a longitudinal velocity of a vehicle includes a plurality of sensors for monitoring data indicative of a travel state of the vehicle and one or more controllers in electronic communication with the plurality of sensors. The one or more controllers executes instructions to receive the data indicative of the travel state of the vehicle from the plurality of sensors. The one or more controllers estimate at least one initial estimated state of the vehicle based on the data indicative of the travel state of the vehicle. The one or more controllers fuse together the data indicative of the travel state of the vehicle with the at least one initial estimated state of the vehicle to determine the lateral velocity and a longitudinal velocity of the vehicle based on a single state estimation scheme.

SYSTEM AND METHOD FOR DETECTION AND REPORTING OF DATA SIGNAL INTERFERENCE THROUGH VEHICLE CROWD SOURCING (17826241)

Main Inventor

Curtis L. Hay

Brief explanation

- The patent application describes a system for detecting and reporting data signal interference using a network of vehicles.

- Each vehicle in the system is equipped with a GNSS receiver, a cellular modem, and a computerized detection and reporting controller. - The controller is programmed to monitor the GNSS signal, analyze it for radio frequency (RF) interference, and generate a report of any interference events to a remote server. - The server device receives and monitors the reports from each vehicle, identifies a threshold RF interference event based on the reports, and initiates a remedial action. - The system aims to improve the detection and reporting of RF interference, which can help in identifying and addressing potential issues in wireless communication networks. - The use of a network of vehicles allows for widespread coverage and real-time monitoring of RF interference events. - The system can help in maintaining the reliability and performance of wireless communication networks by addressing interference issues promptly.

Abstract

A system for detection and reporting of data signal interference includes a plurality of vehicles. Each vehicle includes a global navigation satellite system (GNSS) receiver receiving a GNSS signal, a cellular modem configured for sending and receiving data over a wireless communication network, and a computerized detection and reporting controller. The controller includes programming to monitor the GNSS signal, analyze the GNSS signal to identify a presence of radio frequency (RF) interference, and generate a report of an RF interference event to a remote server device based upon the presence of the interference. The system further includes the server device including programming to monitor the report of the interference event from each of the vehicles, identify a threshold RF interference event based upon the report of the RF interference event from each of the plurality of vehicles, and command a remedial action based upon the threshold RF interference event.

LOAD LIFTING TENSIONED INFLATABLE STRUCTURE (17825213)

Main Inventor

Wonhee Michael Kim

Brief explanation

The patent application describes an inflatable structure that can be expanded and pressurized to provide support in various profiles. 

• The structure includes a top end cap, a bottom end cap, and a bladder that holds pressurized air.
• Inside the bladder, there are multiple tethers that can be extended or retracted.
• The structure can be moved between a stowed profile and a final support profile.
• In the final support profile, the bladder is fully expanded and the tethers restrict further movement of the end caps and limit expansion of the bladder.
• The bottom end cap has a pulley assembly that allows the tethers to be wound or extended.
• In the stowed profile, the tethers are wound onto the pulley assembly.
• The structure can provide multiple intermediary support profiles that can handle compressive loading.

Abstract

An inflatable structure includes a top end cap, a bottom end cap, a bladder attached to the top and bottom end caps and configured to hold pressurized air, a plurality of tethers disposed within the bladder, the inflatable structure moveable between a stowed profile and a final support profile, wherein the bladder is pressurized and expanded axially and the plurality of tethers are fully extended and restrict further movement of the top end cap and the bottom end cap away from one another and limit axial expansion of the bladder, a pulley assembly mounted within the bottom end cap, wherein in the stowed support profile, the plurality of tethers are wound onto the pulley assembly, the pulley assembly adapted to allow selective extension of the tethers allowing axial expansion of the bladder, wherein, the inflatable structure is adapted to provide multiple intermediary support profiles capable of supporting compressive loading.

METHODS OF FORMING STEEL SHEETS WITH ENHANCED FLATNESS (17873926)

Main Inventor

Zhou WANG

Brief explanation

- The patent application describes a method for preparing a steel alloy sheet to improve its flatness.

- The method involves heating a steel alloy material to a specific temperature, holding it at that temperature for a certain period of time, and then air quenching and cooling it. - The steel alloy material used in the method contains chromium in a specific range of 0.5 wt. % to 6 wt. %. - The purpose of the method is to enhance the flatness of the steel alloy sheet, which can be beneficial in various applications. - The method provides a specific temperature range and holding time to achieve the desired flatness enhancement. - The use of air quenching and cooling helps in the preparation of the steel alloy sheet. - The presence of chromium in the steel alloy material is important for the effectiveness of the method.

Abstract

The present disclosure provides a method for preparing a steel alloy sheet to enhance flatness. The method includes, inter alia, heating a steel alloy material to a first temperature that is greater than a full-austenitization point for the steel alloy material; holding steel alloy material at the first temperature for a period greater than or equal to about 1 second to less than or equal to about 10,000 seconds to from a precursor steel sheet; air quenching the precursor steel sheet to a second temperature that is less than the first temperature and greater than martensitic transformation starting temperature for the steel alloy material; and cooling the precursor steel sheet to room temperature to prepare the steel alloy sheet. The steel alloy material includes greater than or equal to about 0.5 wt. % to less than or equal to about 6 wt. % of chromium.

VEHICLE INCLUDING RECYCLABLE CAST ALUMINUM ALLOY COMPONENTS AND METHOD OF MANUFACTURING ALUMINUM ALLOY COMPONENTS FROM RECYCLED VEHICLE COMPONENTS (17873740)

Main Inventor

Pan WANG

Brief explanation

The patent application is about a vehicle that uses recyclable cast aluminum alloy components for its body and chassis.

• The recyclable cast aluminum alloy components have specific compositions, including silicon, magnesium, iron, manganese, and aluminum.
• These components can be melted and cast to create recycled aluminum alloy components.
• The recyclable cast aluminum alloy components make up a significant portion of the recycled aluminum alloy component, ranging from 70% to 90% by mass.

Abstract

A vehicle including recyclable cast aluminum alloy components. The recyclable cast aluminum alloy components include a vehicle body component and a vehicle chassis component. In combination, the recyclable cast aluminum alloy components include, by mass: silicon in an amount greater than or equal to about 6% to less than or equal to about 11%, magnesium in an amount less than or equal to about 0.5%, iron in an amount greater than or equal to about 0.15% to less than or equal to about 0.25%, manganese in an amount less than or equal to about 0.3%, and greater than or equal to about 88% aluminum. A recycled aluminum alloy component may be cast from a melt of the recyclable cast aluminum alloy components. The recyclable cast aluminum alloy components account for, by mass, greater than or equal to about 70%, about 80%, or about 90% of the recycled aluminum alloy component.

METHODS OF FORMING MAGNESIUM-BASED ALLOYS HAVING A BIMODAL MICROSTRUCTURE AND MAGNESIUM-BASED ALLOY COMPONENTS MADE THEREFROM (17877024)

Main Inventor

Congjie WANG

Brief explanation

The patent application describes methods of making magnesium-based alloy components.

• The methods involve subjecting a preform of a magnesium-based alloy to a high temperature and a deformation process.
• This process creates a bimodal microstructure in the magnesium-based alloy component, with un-recrystallized regions distributed in a matrix of dynamically recrystallized grains.
• The magnesium-based alloy used in the methods contains zinc (Zn) at a specific weight percentage, zirconium (Zr) at a specific weight percentage, and total impurities at a specific weight percentage.
• The remaining balance of the alloy is made up of magnesium (Mg).
• The patent also contemplates the use of these methods to produce hot-formed magnesium-based alloy components, specifically for automotive applications.

Abstract

Methods of making magnesium-based alloy components are provided. A preform of a magnesium-based alloy having a plurality of zirconium-rich domains distributed in a magnesium-alloy matrix is subjected to a temperature of ≥ about 360° C. and a deformation process that facilitates selective dynamic recrystallization to create a bimodal microstructure in the magnesium-based alloy component having a plurality of un-recrystallized regions distributed in a matrix comprising dynamically recrystallized grains. The magnesium-based alloy includes zinc (Zn) at ≥ about 2 to ≤ about 4 wt. % of the magnesium-based alloy, zirconium (Zr) at ≥ about 0.62 wt. % to ≤ about 1 wt. % of the magnesium-based alloy, total impurities at ≤ about 0.1 wt. % of the magnesium-based alloy, and a balance of magnesium (Mg). Hot-formed magnesium-based alloy components formed from such methods are also contemplated, including automotive components.

INFLATABLE WITH ELASTIC CONSTRAINT TETHERS (17825218)

Main Inventor

Wonhee Michael Kim

Brief explanation

The patent application describes an inflatable structure that includes a top end cap, a bottom end cap, and a bladder that holds pressurized air between them. The structure also includes multiple tethers within the bladder that restrict the movement of the end caps and limit the expansion of the bladder when it is inflated. 

• The inflatable structure has a top end cap, a bottom end cap, and a bladder.
• The bladder holds pressurized air between the end caps.
• Multiple tethers are placed within the bladder.
• Each tether is attached to the top end cap and the bottom end cap.
• When the bladder is inflated, it expands axially, pushing the end caps apart.
• The tethers restrict the movement of the end caps and limit the expansion of the bladder.
• At least one of the tethers is elastic.
• The inflatable structure can provide multiple support profiles.
• The structure is capable of supporting compressive loading.

Abstract

An inflatable structure includes a top end cap, a bottom end cap, a bladder attached to the top and bottom end caps and configured to hold pressurized air therebetween, and a plurality of tethers disposed within the bladder, each tether in the plurality of tethers having a first end coupled to the top end cap and a second end coupled to the bottom end cap, wherein when the bladder is inflated, the bladder expands axially forcing the top end cap and the bottom end cap away from one another, the plurality of tethers adapted to restrict movement of the top end cap and the bottom end cap away from one another and limit axial expansion of the bladder, wherein, at least one of the plurality of tethers is elastic, and the inflatable structure is adapted to provide multiple support profiles that are capable of supporting compressive loading.

RECOMMENDATION SYSTEM FOR VEHICLE PASSENGERS (17824279)

Main Inventor

Alireza Esna Ashari Esfahani

Brief explanation

This patent application describes a recommendation system for a unique user of a vehicle that predicts recommended commercial establishments based on their personality profile. Here are the key points:

• The system includes a centralized computing unit that communicates wirelessly with the vehicle and other remotely located vehicles.
• The centralized computing unit uses a personality profile of the unique user to score and rank potential commercial establishments.
• The personality profile is based on the commercial establishments visited by the unique user and other users associated with the remotely located vehicles.
• The system re-ranks the initial list of recommended commercial establishments based on additional criteria factors.
• The result is a final list of recommended commercial establishments tailored to the unique user's preferences.

Abstract

A recommendation system for a unique user of a vehicle that predicts one or more recommended commercial establishments includes a centralized computing unit in wireless communication with the vehicle and a plurality of remotely located vehicles. The centralized computing unit score and ranks, based on a personality profile of the unique user of the vehicle, a plurality of potential commercial establishments to determine an initial list of recommended commercial establishments. The personality profile is based on commercial establishments visited by the unique user and a plurality of users, and the plurality of users each represent an individual associated with one of the remotely located vehicles. The centralized computing units re-rank the initial list of recommended commercial establishments based on one or more additional criteria factors to determine a final list of recommended commercial establishments.

TESTERS, TESTING SYSTEMS AND METHODS OF TESTING ELECTRICAL COMPONENTS (17664724)

Main Inventor

Michael H. Shaffer

Brief explanation

The abstract describes a tester for electrical components that has a database of testing specifications, a connector to physically and electrically connect to different components, and an output device. 

• The tester identifies the connected component and retrieves its testing specifications from the database.
• It commands a test of the component based on the specifications.
• The tester then outputs an indication of the test result through the output device.

Abstract

A tester for testing an electrical component. The tester includes a database of testing specifications for electrical components, a tester connector for physically and electrically connecting to different electrical components, and an output device. The tester identifies an electrical component connected to the tester connector and provide corresponding identification data, retrieves a testing specification from the database using the identification data, commands a test of the electrical component according to the testing specification, and outputs an indication of a result of the test through the output device.

MULTI-PERSPECTIVE THREE-DIMENSIONAL FLOATING IMAGE DISPLAY (17824210)

Main Inventor

Manoj Sharma

Brief explanation

The patent application describes a system for creating a floating 3D image display inside a vehicle for multiple passengers.

• The system includes a display that projects a multiplexed hologram with multiple 3D holographic images.
• Each passenger has a beam splitter associated with them, which receives one of the holographic images from the display.
• The beam splitter reflects the holographic image towards the passenger, creating the perception of a floating 3D image.
• All passengers perceive the 3D holographic images at a central location within the vehicle.

Abstract

A system for generating a centrally located floating three-dimensional image display for a plurality of passengers positioned within a vehicle includes a display adapted to project a multiplexed hologram comprising a plurality of three-dimensional holographic images, and a plurality of beam splitters, one beam splitter individually associated with each one of the plurality of passengers, each beam splitter adapted to receive one of the plurality of holographic images from the display and to reflect the one of the plurality of holographic images to the associated one of the plurality of passengers, wherein, each of the plurality of passengers perceives one of the plurality of three-dimensional holographic images floating at a central location within the vehicle.

PREDICTIVE VEHICLE TROUBLESHOOTING METHODS AND SYSTEMS (17664764)

Main Inventor

Sridhar Kamma

Brief explanation

- The patent application is about vehicle diagnostic methods and systems that provide step-by-step troubleshooting guidance.

- The method involves determining a sequence of recommended troubleshooting actions for resolving a potential fault condition associated with a diagnostic code. - The recommended troubleshooting actions are based on a vehicle component associated with the diagnostic code and metadata associated with the vehicle. - Historical diagnostics data is used to determine the sequence of recommended troubleshooting actions. - The recommended troubleshooting actions are provided within a client application on a client device. - Graphical indicia of the recommended troubleshooting actions are displayed in accordance with the sequence. - The probability of resolution associated with each recommended troubleshooting action is based on historical diagnostics data. - The goal is to provide predictive troubleshooting guidance to help resolve vehicle faults efficiently.

Abstract

Vehicle diagnostic methods and systems are provided for providing predictive step-by-step troubleshooting guidance. One method involves determining a sequence of recommended troubleshooting actions for resolving a potential fault condition associated with a diagnostic code based at least in part on a vehicle component associated with the diagnostic code and metadata associated with the vehicle using historical diagnostics data and sequentially providing, within a client application at a client device, graphical indicia of the recommended troubleshooting actions in accordance with the sequence based on a respective probability of resolution associated with the respective recommended troubleshooting actions based at least in part on the historical diagnostics data.

SULFIDE-IMPREGNATED COLUMNAR SILICON ANODE FOR ALL-SOLID-STATE BATTERY AND METHOD OF FORMING THE SAME (17869580)

Main Inventor

Zhe LI

Brief explanation

- The patent application describes an all-solid-state electrochemical cell.

- The cell includes an electrode with a current collector and an electroactive material layer. - The electroactive material layer consists of hierarchical silicon columns and a solid sulfide electrolyte. - The solid sulfide electrolyte is formed in-situ and fills a significant portion of the voids in the electroactive material layer. - The voids are the openings between the hierarchical silicon columns. - The hierarchical silicon columns have a longest dimension perpendicular to the major axis of the current collector.

Abstract

An all-solid-state electrochemical cell is provided. The electrochemical cell includes an electrode having a current collector that defines a major axis, and an electroactive material layer disposed on or adjacent to the current collector. The electroactive material layer includes a plurality of hierarchical silicon columns, and a solid sulfide electrolyte. The solid sulfide electrolyte is formed in-situ and fills greater than or equal to about 60 vol. % to less than or equal to about 100 vol. % of voids in the electroactive material layer. The voids being defined by openings between the hierarchical silicon columns. A longest dimension of each hierarchical silicon columns is perpendicular to the major axis of the second current collector.

CARBON ADDITIVES FOR SILICON-CONTAINING ELECTRODES (17824601)

Main Inventor

Nicole ELLISON

Brief explanation

The abstract describes an electrode for an electrochemical cell that cycles lithium ions. 

• The electrode contains a silicon-containing electroactive material, three different types of carbon additives, and specific weight percentages of each component.
• The first carbon additive has an aspect ratio between 1 and 3, the second carbon additive has an aspect ratio between 3 and 500, and the third carbon additive has an aspect ratio between 20 and 10,000.
• The electrode consists of 80-97% silicon-containing electroactive material, 0.5-15% of the first carbon additive, 0.1-15% of the second carbon additive, and 0.01-5% of the third carbon additive.

Abstract

The present disclosure provides an electrode for an electrochemical cell that cycles lithium ions. The electrode includes a silicon-containing electroactive material, a first carbon additive having a first aspect ratio greater than or equal to about 1 to less than or equal to about 3, a second carbon additive having a second aspect ratio greater than or equal to about 3 to less than or equal to about 500, and a third carbon additive having a third aspect ratio greater than or equal to about 20 to less than or equal to about 10,000. The electrode includes between about 80 wt. % and about 97 wt. % of the silicon-containing electroactive material, between about 0.5 wt. % and about 15 wt. % of the first carbon additive, between about 0.1 wt. % and about 15 wt. % of the second carbon additive, and between about 0.01 wt. % and about 5 wt. % of the third carbon additive.

SOLID-STATE ELECTROLYTE MATERIALS FOR ALL-SOLID-STATE BATTERIES (17824584)

Main Inventor

Thomas A. YERSAK

Brief explanation

The patent application describes an all-solid-state electrochemical battery with a positive electrode, a negative electrode, and a solid-state electrolyte layer separating them.

• The positive electrode contains a positive electroactive material and a solid-state electrolyte material.
• The solid-state electrolyte material is represented by LiAB, where A can be yttrium, indium, scandium, erbium, or combinations, and B can be chloride, bromide, ClBr (where 0<x<1), or combinations.
• In some variations, the positive electroactive material includes a nickel-rich material, and the solid-state electrolyte layer includes a sulfide-based electrolyte material.

Abstract

The present disclosure provides an all-solid-state electrochemical battery that includes a positive electrode, a negative electrode, and a solid-state electrolyte layer disposed between and separating the positive electrode and the negative electrode. The positive electrode includes a positive electroactive material and a solid-state electrolyte material. The solid-state electrolyte material may be represented by LiAB, where A is selected from the group consisting of: yttrium (Y), indium (In), scandium (Sc), erbium (Er), and combinations thereof, and B is selected from the group consisting of: chloride (Cl), bromide (Br), ClBr(where 0<x<1), and combinations thereof. In certain variations, the positive electroactive material includes a nickel-rich electroactive material, and the solid state electrolyte layer includes a sulfide-based electrolyte material. The solid-state electrolyte layer can also include the solid-state electrolyte material may be represented by LiAB.

THERMALLY CONDUCTING BRACKET FOR BUSBAR TO COLD PLATE HEAT TRANSFER (17825325)

Main Inventor

Abdullah-Al Mamun

Brief explanation

- The patent application describes a thermally conductive bracket designed for use in a vehicle.

- The bracket is intended to facilitate the transfer of heat from a busbar to a cold plate. - The cold plate acts as a heat sink for multiple battery cells connected to the busbar. - The bracket is made of a thermally conductive material that is shaped to receive the busbar. - The material has opposed sides and a bottom, allowing for efficient heat transfer. - The opposed sides transfer heat from the busbar to the bottom of the bracket. - The bottom of the bracket then transfers heat from the sides to the cold plate.

Abstract

A thermally conductive bracket is contemplated for use in a vehicle to facilitate transfer heat from a busbar to a cold plate, such as to assist with heat transfer to a cold plate used to act as a heat sink for a plurality of battery cells connected to the busbar. The bracket may include a thermally conductive heat transfer material shaped to receive the busbar where at least a portion of the material is configured to include opposed sides and a bottom such that the opposed sides are configured to transfer heat from the busbar to the bottom and the bottom is configured to transfer heat from the sides to the cold plate.

COOLING OF AXIAL FLUX MOTOR WITH STATOR COOLANT CHANNEL (17847705)

Main Inventor

SeungHwan Keum

Brief explanation

- The patent application describes a stator for an electric machine that includes a stator core and electrically conductive windings.

- The windings are supported by a volume of potting material, which also defines one or more stator coolant channels. - These coolant channels are designed to allow a flow of stator coolant to pass through and remove heat from the windings. - The method of forming the stator involves arranging the windings on the stator core, applying the potting material, and creating the coolant channels. - The innovation allows for efficient cooling of the electric machine, which can help prevent overheating and improve its performance and longevity.

Abstract

A stator of an electric machine includes a stator core and a plurality of electrically conductive windings secured to the stator core. A volume of potting material supports the plurality of electrically conductive windings at the stator core. One or more stator coolant channels are defined in the volume of potting material configured to convey a flow of stator coolant therethrough to remove heat from the plurality of electrically conductive windings. A method of forming a stator of an electric machine includes arranging a plurality of electrically conductive windings on a stator core, applying a volume of potting material to the plurality of electrically conductive windings, and defining one or more stator coolant channels in the volume of potting material. The one or more stator coolant channels are configured to convey a flow of stator coolant therethrough to remove heat from the plurality of electrically conductive windings.

THERMAL BRIDGE FOR AN ELECTRIC MACHINE (17866910)

Main Inventor

Jian Yao

Brief explanation

The abstract describes an electric machine with a housing and a stator core.

• The stator core has stator windings and is mounted inside the housing.
• A thermal bridge made of a non-magnetic material connects the stator core to the inner surface of the housing.
• The thermal bridge consists of multiple individual thermal bridge elements.

Abstract

An electric machine includes a housing having an inner surface; and a stator including a stator core mounted in the housing. The stator core includes a plurality of stator windings, a thermal bridge extends between the stator core and the inner surface of the housing. The thermal bridge is formed from a non-magnetic material and includes a plurality of individual thermal bridge elements.

SYSTEMS AND METHODS FOR REDUCING BATTERY RIPPLE LOSS (17826592)

Main Inventor

Chandra S. NAMUDURI

Brief explanation

The abstract describes a power control system for an electric vehicle that includes multiple power inverters connected to a battery system.

• The power inverters have power switches and are connected to stator phase windings of electric machines.
• A controller determines the switching frequency and phase offsets for the electric machines.
• The controller generates pulse width modulation (PWM) switching signals for one power inverter and outputs PWM switching signals to the other electric machines based on the phase offsets.
• The system allows for efficient power control and distribution in an electric vehicle.

Abstract

A power control system for an electric vehicle comprises N power inverters configured to connect to a battery system of the electric vehicle. Each of the N power inverters includes a plurality of power switches, where N is an integer greater than one. The N power inverters are configured to connect to stator phase windings of N electric machines, respectively. A controller is configured to determine a switching frequency for the N electric machines and (N−1) phase offsets for (N−1) ones of the N electric machines, generate a set of pulse width modulation (PWM) switching signals at the switching frequency for a first one of the N power inverters, and output (N−1) sets of PWM switching signals to the (N−1) ones of the N electric machines based on the set of PWM switching signals and the (N−1) phase offsets.