Toyota jidosha kabushiki kaisha (20240262225). VEHICLE POWER SUPPLY DEVICE simplified abstract
Contents
VEHICLE POWER SUPPLY DEVICE
Organization Name
toyota jidosha kabushiki kaisha
Inventor(s)
Toshio Ikeyama of Toyota-shi (JP)
VEHICLE POWER SUPPLY DEVICE - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240262225 titled 'VEHICLE POWER SUPPLY DEVICE
The abstract describes a vehicle power supply device for an electric motor with coils for multiple phases. The device includes a battery, a power conversion device with switching elements and current sensors for each motor phase, and a control device to manage power flow and current control.
- The device steps up electric power from the motor's neutral point and supplies it to the battery.
- It ensures input and output currents are equal through feedback control.
- Sets an upper limit for phase currents based on the maximum input current.
- Limits phase currents to stay below the set upper limit value.
Potential Applications: - Electric vehicles - Hybrid vehicles - Energy storage systems
Problems Solved: - Efficient power management in electric vehicles - Ensuring safe and controlled charging of batteries - Optimizing energy usage in hybrid vehicles
Benefits: - Improved energy efficiency - Extended battery life - Enhanced vehicle performance
Commercial Applications: Electric vehicle manufacturers can integrate this technology to enhance the performance and efficiency of their vehicles, appealing to environmentally conscious consumers and meeting stringent energy regulations.
Prior Art: Researchers can explore prior patents related to power supply devices for electric motors and battery charging systems to understand the evolution of this technology.
Frequently Updated Research: Stay updated on advancements in electric vehicle technology, battery management systems, and power electronics to enhance the performance and efficiency of vehicle power supply devices.
Questions about Vehicle Power Supply Device: 1. How does the feedback control system ensure equal input and output currents? - The feedback control system adjusts phase currents to match the input and output currents, ensuring efficient power flow. 2. What are the key components of the power conversion device? - The power conversion device includes switching elements and current sensors for each phase of the electric motor, enabling precise control of power flow.
Original Abstract Submitted
a vehicle power supply device applied to a vehicle including an electric motor including coils for a plurality of phases. the vehicle power supply device includes: a battery; a power conversion device including, for each of phases of the electric motor, a switching element and a current sensor; and a control device configured to control the power conversion device such that electric power supplied via a neutral point of the electric motor is stepped up and then supplied to the battery, execute a feedback control to control currents of the respective phases such that an input current from the external power supply and an output current to the battery are equal, set an upper limit of the currents of the respective phases based on a maximum value of the input current, and limit the currents of the respective phases so as not to exceed the set upper limit value.
