Mitsubishi Electric Corporation patent applications published on December 14th, 2023

Patent applications for Mitsubishi Electric Corporation on December 14th, 2023

RAILROAD VEHICLE AIR CONDITIONING APPARATUS (18124207)

Main Inventor

Katsuhiro FUJIKI

Brief explanation

The abstract describes a patent application for an air conditioning apparatus in a railroad vehicle. The apparatus includes an indoor heat exchanger, a drain pan, and a detachable blocking member. 

• The indoor heat exchanger is placed within a housing where air flows through.
• A drain pan is positioned below the indoor heat exchanger within the housing.
• A gap is left between the lower end of the indoor heat exchanger and the bottom surface of the drain pan.
• The detachable blocking member is connected to the indoor heat exchanger.
• The blocking member has a resilient close-contact portion that contacts the bottom surface of the drain pan.
• The blocking portion of the blocking member blocks between the resilient close-contact portion and the indoor heat exchanger.
• The resilient close-contact portion of the blocking member bears at least a part of the load of the indoor heat exchanger.

Potential applications of this technology:

• Railroad vehicles
• Other types of vehicles with air conditioning systems

Problems solved by this technology:

• Prevents leakage or overflow of condensate from the indoor heat exchanger
• Provides support for the indoor heat exchanger to distribute its load

Benefits of this technology:

• Improved efficiency and performance of the air conditioning system
• Reduced risk of damage or malfunction due to condensate leakage
• Easy maintenance and replacement of the blocking member

Abstract

In a railroad vehicle air conditioning apparatus, an indoor heat exchanger is arranged within a housing at a position through which a flow of air passes. A drain pan is arranged within the housing below the indoor heat exchanger. A gap is left between a lower end portion of the indoor heat exchanger and a bottom surface of the drain pan. A blocking member is detachable from the indoor heat exchanger and includes a resilient close-contact portion that is in resiliently close contact with the bottom surface of the drain pan and a blocking portion that blocks between the resilient close-contact portion and the indoor heat exchanger so as to transmit to the resilient close-contact portion at least a part of load of the indoor heat exchanger.

IN-VEHICLE USE CONTROL SYSTEM (18028279)

Main Inventor

Kojiro CHIKAMATSU

Brief explanation

The abstract describes an in-vehicle use control system that includes various components to manage and monitor the operational state of the system and its control functions. Here are the key points:

• The system includes a state management part that acquires information on the operational state of the system.
• A memory storage part is used to store the acquired information on the operational state.
• The system has a control part with multiple control functions.
• A list management part holds lists that define the correspondence between each control function and its normal operating state.
• A monitoring part selects a list based on the operational state stored in memory, compares the normal operating state of a control function with its execution state, and monitors the normality of the control function's operation.

Potential applications of this technology:

• In-vehicle control systems for automobiles, trucks, or other vehicles.
• Industrial machinery control systems.
• Home automation systems with multiple control functions.

Problems solved by this technology:

• Ensures the normal operation of control functions by monitoring their execution state.
• Provides a systematic way to define the normal operating state for each control function.
• Allows for efficient monitoring and management of the operational state of the system.

Benefits of this technology:

• Improved reliability and safety of in-vehicle control systems.
• Enhanced performance and efficiency of control functions.
• Simplified monitoring and management of the system's operational state.

Abstract

An in-vehicle use control system includes: a state management part which acquires the information on an operational state of the system; a memory storage part which memorizes the information on the operational state of the system, which is acquired by the state management part; a control part which has a plurality of control functions; a list management part which holds lists in which the correspondence relation between the control function of the control part and the normal operating state of the control function is defined; and a monitoring part which chooses the list held in the list management part, based on the operational state which is memorized in the memory storage part, compares the normal operating state of a control function which is defined in the list, and an execution state of the control part, and monitors whether the operation of the control function is normal or not.

AUTOMATIC OPERATING SYSTEM, SERVER, AND METHOD FOR GENERATING DYNAMIC MAP (18033674)

Main Inventor

Tetsuro NISHIOKA

Brief explanation

The patent application describes a system that predicts the motion of a mobile object using sensor information. It also predicts a virtual obstacle range where a virtual obstacle might be present based on the motion prediction. The system then generates a dynamic map that includes the virtual obstacle range.

• Motion prediction unit: Predicts the motion of a mobile object using sensor information.
• Range prediction unit: Predicts a virtual obstacle range based on the motion prediction information.
• Map generation unit: Generates a dynamic map that reflects the virtual obstacle range.

Potential Applications

• Autonomous vehicles: This technology can be used in self-driving cars to predict the motion of other vehicles and generate maps that include virtual obstacle ranges.
• Robotics: It can be applied in robotics to predict the motion of objects and generate maps that include virtual obstacle ranges.
• Augmented reality: This technology can be used in augmented reality applications to predict the motion of virtual objects and generate maps that include virtual obstacle ranges.

Problems Solved

• Accurate motion prediction: The system solves the problem of accurately predicting the motion of a mobile object using sensor information.
• Virtual obstacle prediction: It solves the problem of predicting a virtual obstacle range where a virtual obstacle might be present based on the motion prediction.
• Dynamic map generation: The system solves the problem of generating a dynamic map that reflects the virtual obstacle range.

Benefits

• Improved safety: By accurately predicting the motion of objects and virtual obstacle ranges, this technology can enhance safety in various applications such as autonomous vehicles and robotics.
• Efficient navigation: The generated dynamic maps can help mobile objects navigate more efficiently by avoiding virtual obstacles.
• Enhanced user experience: In augmented reality applications, this technology can provide a more immersive and realistic experience by accurately predicting the motion of virtual objects and generating maps that reflect virtual obstacle ranges.

Abstract

A motion prediction unit that predicts a motion of a mobile object on the basis of sensor information; a range prediction unit that predicts a virtual obstacle range in which a virtual obstacle is present on the basis of motion prediction information regarding the motion of the mobile object predicted by the motion prediction unit; and a map generation unit that generates a dynamic map reflecting the virtual obstacle range on the basis of information regarding the virtual obstacle range predicted by the range prediction unit.

CENTRIFUGAL BLOWER, AIR-BLOWING APPARATUS, AIR-CONDITIONING APPARATUS, AND REFRIGERATION CYCLE APPARATUS (18453491)

Main Inventor

Takuya TERAMOTO

Brief explanation

The abstract describes a centrifugal air blower that includes a fan and a scroll casing. The scroll casing has a sidewall with a suction opening for air intake, a discharge opening, and a tongue portion to guide the airflow. It also has a peripheral wall surrounding the fan and a bell mouth formed along the suction opening.

• The centrifugal air blower includes a fan and a scroll casing.
• The scroll casing has a sidewall with a suction opening for air intake.
• It also has a discharge opening and a tongue portion to guide the airflow.
• The scroll casing has a peripheral wall surrounding the fan.
• A bell mouth is formed along the suction opening of the sidewall.
• The bell mouth has upstream and downstream ends.
• The upstream end is on the upstream side of the airflow passing through the suction opening.
• The downstream end is on the downstream side of the airflow.

Potential applications of this technology:

• HVAC systems
• Industrial ventilation systems
• Automotive cooling systems

Problems solved by this technology:

• Efficient air intake and discharge
• Improved airflow control

Benefits of this technology:

• Increased efficiency in air circulation
• Enhanced performance of ventilation systems
• Improved cooling capabilities

Abstract

A centrifugal air blower includes a fan; and a scroll casing. The scroll casing includes: a sidewall covering the fan from an axial direction of a rotation axis, the sidewall having a suction opening for sucking air; a discharge opening; a tongue portion for guiding the airflow to the discharge opening; a peripheral wall surrounding the fan from a radial direction of the rotation axis; and a bell mouth formed along the suction opening of the sidewall. The bell mouth includes upstream and downstream ends, with the upstream end being an end portion on an upstream side in a direction of flow of the air passing through the suction opening, and the downstream end being an end portion on a downstream side in the direction of flow of the air.

AIR CONDITIONER (18250801)

Main Inventor

Yohei TAKIGAWA

Brief explanation

The abstract describes an air conditioner with an outdoor unit that has a three-phase AC power supply, a compressor, and an inverter circuit. The outdoor unit also includes a driving microcomputer, diode bridges, relays, and an inrush-prevention resistor. After the compressor stops, the microcomputer turns off the relays.

• The air conditioner has an outdoor unit with a compressor and inverter circuit.
• The outdoor unit is powered by a three-phase AC power supply.
• A driving microcomputer controls the inverter circuit.
• The outdoor unit includes diode bridges, relays, and an inrush-prevention resistor.
• After the compressor stops, the microcomputer turns off the relays.

Potential Applications

• Residential air conditioning systems
• Commercial air conditioning systems
• Industrial air conditioning systems

Problems Solved

• Efficient control of the compressor and inverter circuit
• Prevention of inrush current during startup
• Reliable operation and protection of the air conditioner

Benefits

• Energy-efficient operation
• Reduced risk of damage due to inrush current
• Improved reliability and lifespan of the air conditioner

Abstract

An air conditioner includes an outdoor unit including a three-phase AC power supply, a compressor that compresses a refrigerant, and an inverter circuit that controls the compressor. The outdoor unit includes a driving microcomputer that drives the inverter circuit, a second diode bridge connected to the inverter circuit, a first relay disposed on a first wiring line, a second relay disposed on a third wiring line, an inrush-prevention resistor, and a third relay connected to the first wiring line and the inrush-prevention resistor. After the compressor stops, the driving microcomputer brings the first relay, the second relay, and the third relay into an off state.

SERVER SELECTION DEVICE AND SERVER SELECTION SYSTEM (18032415)

Main Inventor

Ryo ISHIDA

Brief explanation

The abstract describes a server selection device in a server that communicates with a motor vehicle. The device includes a server determination unit that selects a server from the surrounding information and encourages the motor vehicle to connect to that server. The server determination unit selects a server based on the motor vehicle's running route and the coverage area information of the server, prioritizing servers that offer longer connection times.

• The server selection device is installed in a server that communicates with a motor vehicle.
• A server determination unit within the device selects a server for the motor vehicle to connect to.
• The selection is based on the surrounding information and considers the motor vehicle's running route.
• The server determination unit prioritizes servers that offer longer connection times.
• The selected server information is then transmitted to the motor vehicle.

Potential applications of this technology:

• Connected vehicles: This technology can be used in vehicles with internet connectivity to ensure they connect to the most suitable server based on their location and route.
• Fleet management: Companies managing a fleet of vehicles can use this technology to optimize server selection and improve communication reliability.
• Smart transportation systems: This technology can be integrated into smart transportation systems to enhance connectivity and communication between vehicles and infrastructure.

Problems solved by this technology:

• Efficient server selection: The technology solves the problem of selecting the most appropriate server for a motor vehicle based on its location and running route, ensuring optimal connectivity.
• Improved communication reliability: By selecting servers with longer connection times, the technology enhances the reliability of communication between the motor vehicle and the server.
• Enhanced user experience: The technology improves the overall user experience by ensuring seamless and reliable connectivity between the motor vehicle and the server.

Benefits of this technology:

• Optimal connectivity: By selecting servers based on the motor vehicle's location and running route, the technology ensures the best possible connectivity for the vehicle.
• Improved communication reliability: The selection of servers with longer connection times enhances the reliability of communication between the motor vehicle and the server.
• Enhanced user experience: The technology provides a seamless and reliable connection experience for users, improving their overall satisfaction.

Abstract

A server selection device is provided in a server which performs communications with a motor vehicle, and a server determination unit is provided in the server selection device that selects a server from the information of surroundings, and promotes a motor vehicle to connect to the server. The server determination unit selects, from among a plurality of such servers capable of connecting the motor vehicle, one server by which its connection time can be longer in its connection than that by another server, based on a running route of the motor vehicle and coverage area information of the server, so that server information on a server to be connected next is transmitted to the motor vehicle.

OBJECT DETECTION APPARATUS, OBJECT DETECTION METHOD, AND NON-TRANSITORY COMPUTER READABLE-MEDIUM (18238745)

Main Inventor

Kentaro ISHIKAWA

Brief explanation

The object detection apparatus described in the patent application includes three main components: a distance calculation unit, a position coordinate calculation unit, and a noise removal unit. 

• The distance calculation unit analyzes the reception signals received by multiple receivers and identifies target peaks corresponding to these signals. It then calculates the distance to the target based on these peaks.
• The position coordinate calculation unit uses the calculated distances and the positions of the receivers to estimate the position coordinates of the detected objects. It generates a set of detection points representing the estimated positions.
• The noise removal unit eliminates any detection points that correspond to noise by analyzing the position coordinates of each detection point in the set.

Potential applications of this technology:

• Autonomous vehicles: The object detection apparatus can be used in self-driving cars to detect and track objects in the surrounding environment, helping the vehicle navigate safely.
• Surveillance systems: The apparatus can enhance the capabilities of surveillance systems by accurately detecting and tracking objects in real-time, improving security and monitoring.
• Robotics: This technology can be applied in robotics to enable robots to detect and interact with objects in their environment, enhancing their capabilities in various tasks.

Problems solved by this technology:

• Accurate object detection: The apparatus provides a reliable method for detecting objects by analyzing reception signals and calculating distances, improving the accuracy of object detection systems.
• Noise reduction: The noise removal unit eliminates false detections caused by noise, ensuring that only valid detection points are considered, reducing false alarms and improving the reliability of the system.

Benefits of this technology:

• Improved safety: By accurately detecting and tracking objects, this technology can enhance the safety of various applications, such as autonomous vehicles, surveillance systems, and robotics.
• Real-time detection: The apparatus provides real-time object detection, allowing for quick and efficient response to detected objects.
• Enhanced efficiency: By removing noise and false detections, the technology improves the efficiency of object detection systems, reducing unnecessary processing and improving overall performance.

Abstract

An object detection apparatus includes a distance calculation unit (), a position coordinate calculation unit (), and a noise removal unit (). The distance calculation unit () regards as a target reception signal, each of a plurality of reception signals received by each of a plurality of receivers, detects as a target peak, each of at least one of peaks corresponding to the target reception signals, and calculates as a calculated distance, a distance corresponding to the target peak. The position coordinate calculation unit () calculates a detection point indicating position coordinates indicating a position at which an object is estimated to be present, based on each combination of the calculated distance corresponding to each of the plurality of reception signals and each position of the plurality of receivers, and regards as a detection result point group, a set that consists of the calculated detection points. The noise removal unit () removes from the detection result point group, a detection point corresponding to noise, based on the position coordinates of each detection point included in the detection result point group.

CONTROL DEVICE, CONTROL SYSTEM, CONTROL METHOD, AND COMPUTER READABLE MEDIUM STORING CONTROL PROGRAM (18238337)

Main Inventor

Tadashi ONISHI

Brief explanation

The abstract describes a control device that can effectively learn how to control a target based on its current state. Here are the key points:

• The control device acquires state data that represents the current state of the control target.
• It identifies the category to which the state belongs among multiple predefined categories.
• A reward value for a specific control action is calculated based on the state category and the state data.
• The control device learns the appropriate control action based on the state data and reward value.

Potential Applications

This technology has potential applications in various fields where control of a target is required, such as:

• Robotics: The control device can be used to improve the control of robotic systems, allowing them to adapt to different states and environments.
• Autonomous Vehicles: It can enhance the control algorithms of self-driving cars, enabling them to respond better to different driving conditions.
• Industrial Automation: The control device can optimize the control of manufacturing processes, leading to increased efficiency and productivity.

Problems Solved

The control device addresses the following problems:

• Lack of Adaptability: Traditional control systems may struggle to adapt to changing states or environments, leading to suboptimal performance.
• Manual Tuning: Control parameters often need to be manually adjusted, which can be time-consuming and may not result in optimal control.
• Limited Learning Capability: Existing control systems may have limited learning capabilities, making it difficult to improve control performance over time.

Benefits

The use of this control device offers several benefits:

• Improved Control Performance: By learning and adapting to different states, the control device can achieve better control performance in various scenarios.
• Automatic Learning: The control device can automatically learn the appropriate control actions based on the state data and reward values, reducing the need for manual tuning.
• Enhanced Efficiency: With better control, the technology can optimize processes, leading to increased efficiency and potentially reducing costs.

Abstract

A control device capable of more appropriately learning a control detail of a control target in accordance with a state of the control target is provided. A control device according to the present disclosure includes a state data acquisition unit to acquire state data indicating a state of a control target, a state category identification unit to identify a state category to which a state indicated by the state data belongs among a plurality of state categories indicating classifications of states of the control target on the basis of the state data, a reward generation unit to calculate a reward value of a control detail for the control target on the basis of the state category and the state data, and a control learning unit to learn the control detail on the basis of the state data and the reward value.

IMAGE PROCESSING DEVICE, NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM, AND IMAGE PROCESSING METHOD (18237937)

Main Inventor

Shingo MINE

Brief explanation

The abstract describes an image processing device that can detect objects in captured images. Here are the key points:

• The device processes captured image data to generate processed image data where the object is detected.
• It also generates expected data representing a virtual image with the object placed at a specific position on the background.
• The device compares the processed image data with the expected data to determine if the object is detected correctly.

Potential applications of this technology:

• Object detection in surveillance systems: The device can be used to detect objects of interest in surveillance footage, such as identifying suspicious individuals or vehicles.
• Augmented reality: The device can be used to accurately place virtual objects in real-world scenes, enhancing the user's augmented reality experience.
• Autonomous vehicles: The device can help autonomous vehicles detect and identify objects on the road, improving their ability to navigate and avoid collisions.

Problems solved by this technology:

• Accurate object detection: The device improves the accuracy of object detection by comparing the processed image data with expected data, ensuring that objects are correctly identified.
• Virtual object placement: The device generates expected data to accurately place virtual objects in a scene, enhancing the realism of augmented reality applications.

Benefits of this technology:

• Improved efficiency: The device automates the process of object detection, saving time and effort compared to manual detection methods.
• Enhanced accuracy: By comparing processed image data with expected data, the device ensures that objects are correctly detected, reducing false positives and false negatives.
• Realistic augmented reality: The device accurately places virtual objects in real-world scenes, creating a more immersive and realistic augmented reality experience.

Abstract

An image processing device includes an object detecting unit that processes captured image data representing a captured image, which is an image including an object or detection target and a background of the object, to generate processed image data representing a processed image, which is an image in which the object is detected; an expected-data generating unit that generates expected data representing an expected image, which a virtual image in which the object represented by an attribute is placed at a position on the background on the basis of object data representing the position of the object and background data representing the background; and a detection-result determining unit that compares the processed image data and the expected data to determine whether or not the object is detected correctly in the processed image data.

ABNORMALITY DETERMINATION APPARATUS, ABNORMALITY DETERMINATION SYSTEM, ABNORMALITY DETERMINATION METHOD AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM STORING ABNORMALITY DETERMINATION PROGRAM ([[18144494. ABNORMALITY DETERMINATION APPARATUS, ABNORMALITY DETERMINATION SYSTEM, ABNORMALITY DETERMINATION METHOD AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM STORING ABNORMALITY DETERMINATION PROGRAM simplified abstract (Mitsubishi Electric Corporation)|18144494]])

Main Inventor

Kentaro ISHIKAWA

Brief explanation

The patent application describes an abnormality determination apparatus that can detect abnormalities by comparing information from a sensor with known reference information. The apparatus includes an object-matter detection unit, an absolute location calculation unit, and an abnormality determination unit.

• The object-matter detection unit detects objects based on signals received from an onboard surroundings monitoring sensor.
• The absolute location calculation unit converts the relative location of the detected object into an absolute location.
• The abnormality determination unit compares the absolute location information with the reference information to determine if there is any abnormality in the onboard surroundings monitoring sensor.

Potential Applications

• Automotive industry: This technology can be used in vehicles to detect abnormalities in onboard surroundings monitoring sensors, ensuring the safety and reliability of the sensor system.
• Industrial automation: The apparatus can be applied in industrial settings to monitor the performance of sensors used in various processes, helping to identify any abnormalities and prevent potential issues.

Problems Solved

• Detection of abnormalities: The apparatus provides a method to determine if there are any abnormalities in the onboard surroundings monitoring sensor by comparing the detected object's location with reference information.
• Reliability and safety: By detecting abnormalities in the sensor system, potential malfunctions or failures can be identified and addressed promptly, ensuring the reliability and safety of the system.

Benefits

• Early detection of abnormalities: The apparatus enables the early detection of abnormalities in the sensor system, allowing for timely maintenance or replacement of faulty sensors.
• Improved system performance: By monitoring the performance of the onboard surroundings monitoring sensors, the apparatus helps to maintain the overall performance and accuracy of the sensor system.

Abstract

An abnormality determination apparatus is provided which can determine the presence or absence of abnormality by defining known information as reference information, and by comparing the reference information with information from a sensor(s). The abnormality determination apparatus comprises: an object-matter detection unit for performing object-matter detection on the basis of a reception signal outputted from an onboard surroundings monitoring sensor being included in an object-matter detecting sensor(s); an absolute location calculation unit for transforming a relative location of an object-matter contained in an object-matter detection result outputted from the object-matter detection unit into an absolute location; and an abnormality determination unit for performing determination whether or not abnormality is caused in the onboard surroundings monitoring sensor by comparing absolute location information outputted from the absolute location calculation unit with reference information.

HAND DETECTION DEVICE, GESTURE RECOGNITION DEVICE, AND HAND DETECTION METHOD (18036344)

Main Inventor

Shogo HOTEN

Brief explanation

The patent application describes a hand detection device used in vehicles. Here is a simplified explanation of the abstract:

• The hand detection device captures an image of a specific region in a vehicle to detect hands.
• It calculates the difference in brightness between consecutive frames of the captured image.
• Using this information, it detects the presence of a user's hand in the image.
• It also determines if the detected hand is a false positive by comparing the brightness difference between the frame with the detected hand and the previous frame in the hand detection area.

Potential Applications:

• Automotive industry: This technology can be used in vehicles to detect the presence of a driver's hand on the steering wheel or other control surfaces.
• Human-computer interaction: It can be applied in various human-computer interaction systems, such as touchless gesture control or virtual reality, to detect and track hand movements.

Problems Solved:

• Accurate hand detection: The device improves the accuracy of hand detection by considering the luminance difference between frames, reducing false positives.
• Error reduction: By determining if a detected hand is a false positive, it helps prevent erroneous actions or commands based on incorrect hand detection.

Benefits:

• Enhanced safety: In vehicles, accurate hand detection can contribute to safer driving by ensuring that the driver's hands are on the controls when necessary.
• Improved user experience: In human-computer interaction systems, reliable hand detection enables more intuitive and seamless interactions, enhancing the user experience.

Abstract

In the hand detection device, an image acquisition unit acquires an image for hand detection, which is an image obtained by capturing a hand detection region in a vehicle. A luminance difference calculation unit calculates an inter-frame luminance difference of the image for hand detection. A hand detection unit detects a hand of a user from the image for hand detection. An erroneous detection determination unit determines whether or not the detected hand has been erroneously detected on the basis of the luminance difference between the frame in which the hand has been detected and the frame immediately preceding thereof in the hand detection area.

CONTROL DEVICE AND POWER STORAGE SYSTEM (18035302)

Main Inventor

Keisuke OGASAWARA

Brief explanation

The patent application describes a control device designed to prevent a decrease in the performance of a power storage device. The control device consists of a detector, an impedance calculator, a ripple current calculator, and a converter.

• The detector is responsible for detecting a parameter of the power storage device.
• The impedance calculator calculates the impedance of the power storage device using the information obtained from the detector.
• The ripple current calculator determines the amplitude of the ripple current applied to the power storage device based on the detector's output.
• The converter is controlled using the outputs from the impedance calculator and the ripple current calculator.

Potential Applications

• Energy storage systems: The control device can be used in various energy storage systems, such as batteries or capacitors, to optimize their performance and prevent performance reduction.
• Electric vehicles: Implementing this control device in electric vehicles can help maintain the efficiency and lifespan of the vehicle's power storage system.
• Renewable energy systems: The control device can be utilized in renewable energy systems, such as solar or wind power, to enhance the performance and stability of the power storage devices used.

Problems Solved

• Performance reduction: The control device addresses the issue of performance reduction in power storage devices by actively monitoring and controlling the impedance and ripple current applied to the device.
• Efficiency optimization: By accurately calculating and controlling the impedance and ripple current, the control device ensures that the power storage device operates at its optimal efficiency.
• Lifespan extension: Preventing performance reduction and optimizing the device's operation can help extend the lifespan of the power storage device, reducing the need for frequent replacements.

Benefits

• Enhanced performance: The control device helps maintain the performance of power storage devices, ensuring they operate at their maximum potential.
• Improved efficiency: By actively controlling the impedance and ripple current, the control device optimizes the efficiency of power storage devices, reducing energy losses.
• Extended lifespan: The control device prevents performance degradation, leading to a longer lifespan for power storage devices and reducing overall maintenance and replacement costs.

Abstract

Provided is a control device for suppressing performance reduction of a power storage device. The control device includes: a detector to detect a power storage device parameter relevant to a power storage device; an impedance calculator to calculate an impedance of the power storage device from output of the detector; and a ripple current calculator to calculate an amplitude of ripple current applied to the power storage device, from output of the detector. A converter is controlled on the basis of output of the impedance calculator and output of the ripple current calculator.

POWER CONVERSION UNIT AND POWER CONVERSION DEVICE (18036415)

Main Inventor

Yu KAWAI

Brief explanation

The patent application describes a power conversion unit that converts DC power from a power supply and controls the voltage at different terminals. The unit includes an input end, two DC voltage ends, a converter, and a controller.

• The power conversion unit connects to a DC power supply and has two DC voltage ends.
• A converter is used to perform DC/DC conversion and transmit power between the input end and the DC voltage ends.
• The controller controls the converter and generates control commands to maintain the voltage at the DC voltage ends at a target value.

Potential applications of this technology:

• Renewable energy systems: The power conversion unit can be used in solar or wind energy systems to convert and control the DC power generated.
• Electric vehicles: The unit can be utilized in electric vehicles to convert and regulate the DC power from the battery.
• Data centers: The technology can be applied in data centers to efficiently convert and manage the power supply.

Problems solved by this technology:

• Efficient power conversion: The unit ensures efficient conversion of DC power, reducing energy loss during the conversion process.
• Voltage control: The controller maintains the voltage at the DC voltage ends at a target value, ensuring stable and reliable power supply.
• Flexibility: The unit can be used in various applications, providing a versatile solution for power conversion needs.

Benefits of this technology:

• Energy efficiency: The power conversion unit minimizes energy loss during the conversion process, resulting in higher overall efficiency.
• Stable power supply: The voltage control feature ensures a stable and reliable power supply, reducing the risk of power fluctuations or failures.
• Versatility: The unit can be used in different applications, providing a flexible solution for power conversion requirements.

Abstract

A power conversion unit includes an input end to connect with a DC power supply, a first DC voltage end configured of a first terminal and a second terminal, a second DC voltage end configured of a third terminal and a fourth terminal, a converter, and a controller that controls the converter. The converter performs DC/DC conversion accompanied by power transmission between the input end and the first and second DC voltage ends. The controller generates a control command for the converter controlling a first voltage at the first DC voltage end and a second voltage at the second DC voltage end to a voltage target value.

POWER CONVERSION DEVICE (18033586)

Main Inventor

Tenjiro HIWATARI

Brief explanation

The patent application describes a power conversion device that converts DC power into AC power and supplies it to a load. The device uses switching devices and switching parameters to define the switching state quantity, which determines the power output.

• The power conversion device converts DC power into AC power and supplies it to a load.
• The switching state quantity is defined by combinations among switching parameters of switching devices.
• A voltage output calculation device calculates the voltage output value on the power conversion circuitry based on the switching state quantity.
• An integration value calculation device integrates a voltage reference value and the calculated voltage output value to acquire a voltage reference integration value and a voltage output integration value.
• A switching update-determination unit outputs an update signal of the switching state quantity based on the voltage reference integration value, its allowance value, and the voltage output integration value.
• A switching determination table determines the switching state quantity of the switching devices based on the voltage reference integration value, the voltage output integration value, and the update signal.

Potential applications of this technology:

• Power conversion devices for renewable energy sources such as solar panels or wind turbines.
• Power inverters for electric vehicles.
• Uninterruptible power supply systems.

Problems solved by this technology:

• Efficiently converting DC power into AC power.
• Optimizing the switching state quantity to achieve desired power output.
• Integrating voltage reference values and voltage output values for accurate calculations.

Benefits of this technology:

• Improved energy conversion efficiency.
• Enhanced control and optimization of power output.
• Reliable and accurate voltage calculations for better performance.

Abstract

A power conversion device comprises: power conversion circuitry for converting DC power into AC power and supplying it into a load according to a switching state quantity defined by combinations among switching parameters of switching devices; a voltage output calculation device for calculating a voltage output value on the power conversion circuitry, based on the switching state quantity; an integration value calculation device for acquiring a voltage reference integration value and a voltage output integration value by integrating a voltage reference value and the calculated voltage output value; a switching update-determination unit for outputting an update signal of the switching state quantity, based on the voltage reference integration value, its allowance value, and the voltage output integration value; and a switching determination table for determining a switching state quantity of the switching devices, based on the voltage reference integration value, the voltage output integration value and the update signal.

MOTOR DRIVING APPARATUS, REFRIGERATION CYCLE EQUIPMENT, AND AIR CONDITIONER (18249079)

Main Inventor

Shinya TOYODOME

Brief explanation

The patent application describes a control device that uses PWM control to drive a motor through an inverter. The device generates voltage command values based on current deviations and performs non-interference control during normal operation. However, during over-modulation, the device generates voltage command values without using the result of the integral calculation and only performs non-interference control. The voltage command values are then corrected based on a modulation factor, which determines the AC voltages applied to the motor.

• The control device performs PWM control over an inverter to drive a motor.
• Voltage command values are generated based on current deviations and non-interference control during normal operation.
• During over-modulation, voltage command values are generated without using the result of the integral calculation and only performing non-interference control.
• The voltage command values are corrected based on a modulation factor to ensure AC voltages applied to the motor are proportional to the modulation factor.
• This innovation allows the motor to be operated over a wide range within an over-modulation range.

Potential Applications

This technology can be applied in various industries and applications that require precise control of motors driven by inverters. Some potential applications include:

• Electric vehicles: The control device can be used to drive the motors in electric vehicles, providing efficient and precise control over the motor's speed and torque.
• Industrial automation: The technology can be implemented in industrial automation systems to control motors used in manufacturing processes, robotics, and other applications.
• Renewable energy: The control device can be utilized in renewable energy systems, such as wind turbines and solar power plants, to optimize the performance of the motors driving the generators.

Problems Solved

The technology addresses several problems associated with PWM control and over-modulation in motor driving systems:

• Non-interference control: By performing non-interference control during normal operation, the device ensures stable and accurate motor control, reducing the risk of malfunctions and damage.
• Over-modulation range: The innovation allows the motor to be operated within an over-modulation range, expanding the range of operation and providing flexibility in motor control.
• Voltage correction: The correction of voltage command values based on the modulation factor ensures that the AC voltages applied to the motor are proportional to the desired modulation, improving the overall performance and efficiency of the motor.

Benefits

The technology offers several benefits for motor control systems:

• Improved control accuracy: By generating voltage command values based on current deviations and non-interference control, the device provides precise control over the motor's speed and torque.
• Wide operating range: The ability to operate the motor within an over-modulation range allows for greater flexibility and adaptability in various applications.
• Enhanced efficiency: The correction of voltage command values based on the modulation factor ensures that the AC voltages applied to the motor are optimized, resulting in improved energy efficiency and reduced power losses.

Abstract

In a control device performing PWM control over an inverter for driving a motor, voltage command values are generated using voltage values obtained by performing proportional and integral calculation on current deviations and non-interference control during normal operation, and the voltage command values are generated without using the result of the integral calculation and performing only the non-interference control, at the time of over-modulation. Moreover, the voltage command values are corrected based on a modulation factor. A correction coefficient is so determined that the AC voltages applied to the motor become close to values proportional to the modulation factor. The motor can be operated over a wide range within an over-modulation range.

INTER-APPARATUS MOVEMENT TIME ESTIMATION DEVICE, INTER-APPARATUS MOVEMENT TIME ESTIMATION METHOD AND OPERATION SCHEDULE PROPOSAL SYSTEM (18036169)

Main Inventor

Tetsuro SHIDA

Brief explanation

The inter-apparatus movement time estimation device described in the patent application is designed to estimate the time required for an operator to move between different apparatuses. Here is a simplified explanation of the abstract:

• The device receives operation time information from multiple apparatuses, indicating how long it takes for an operator to operate each apparatus.
• It generates various combinations of operation times between a first and second apparatus.
• It calculates the difference between the operation times of the first and second apparatus, known as the inter-apparatus operation time difference.
• The device excludes operation time differences that are relatively small or have a low probability of occurrence.
• It then estimates the time required for an operator to move between the first and second apparatus based on the exclusion result.

Potential applications of this technology:

• Industrial settings where operators need to move between different machines or equipment.
• Warehouses or logistics centers where workers need to navigate between different workstations or storage areas.
• Hospitals or healthcare facilities where medical staff need to move between different rooms or departments.

Problems solved by this technology:

• Provides a more accurate estimation of the time required for an operator to move between different apparatuses.
• Helps optimize workflow and resource allocation by considering the time spent on inter-apparatus movement.
• Reduces the risk of delays or inefficiencies caused by underestimating the time needed for movement.

Benefits of this technology:

• Improved productivity and efficiency by better planning and scheduling of tasks involving inter-apparatus movement.
• Enhanced safety by ensuring operators have enough time to move between apparatuses without rushing.
• Cost savings by optimizing resource allocation based on accurate time estimations.

Abstract

An inter-apparatus movement time estimation device according to the present disclosure includes: a communication unit to receive, from a plurality of apparatuses, operation time information for an operator to operate each of the plurality of apparatuses; a combination generation unit to generate a plurality of combinations of the operation time of a first apparatus and the operation time of a second apparatus; an operation time difference computation unit to compute a difference between the operation time of the first apparatus and the operation time of the second apparatus as an inter-apparatus operation time difference; an exclusion unit to output an exclusion result in which the inter-apparatus operation time difference whose size is relatively small or whose occurrence probability is relatively low is excluded; and an inter-apparatus movement time calculation unit to estimate time required to move between the first apparatus and the second apparatus from the exclusion result.

CIRCUIT BOARD (18267115)

Main Inventor

Masatoshi TOYONAGA

Brief explanation

The abstract describes a circuit board design with two capacitors connected to a wiring pattern. A semiconductor device is mounted on the circuit board and connected to the wiring pattern. The circuit board is divided into two closed circuits, each consisting of the semiconductor device, wiring pattern, capacitor, interlayer joints, and ground plane.

• The circuit board design includes two capacitors connected to a wiring pattern.
• A semiconductor device is mounted on the circuit board and connected to the wiring pattern.
• The circuit board is divided into two closed circuits, each consisting of the semiconductor device, wiring pattern, capacitor, interlayer joints, and ground plane.

Potential Applications

• Electronics manufacturing
• Circuit board design and production

Problems Solved

• Efficient power supply connection in circuit boards
• Improved circuit board design and functionality

Benefits

• Enhanced performance and functionality of circuit boards
• Improved power supply connection and stability

Abstract

In a circuit board (A), a first capacitor () extends from a wiring pattern () to a region located on one side of the wiring pattern () in the width direction. A second capacitor () extends from the wiring pattern () to a region located on the other side of the wiring pattern () in the width direction. With a semiconductor device () mounted on the circuit board (A), a power supply terminal () is electrically connected to the wiring pattern (). The semiconductor device (), the wiring pattern (), the first capacitor (), a first interlayer joint (), a ground plane (), and a third interlayer joint () constitute a first closed circuit. The semiconductor device (), the wiring pattern (), the second capacitor (), a second interlayer joint (), the ground plane (), and the third interlayer joint () constitute a second closed circuit.