18403071. VEHICLE POWER SUPPLY DEVICE simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)
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 18403071 titled 'VEHICLE POWER SUPPLY DEVICE
Simplified Explanation:
This patent application describes a vehicle power supply device for an electric motor in a vehicle. The device includes a battery, a power conversion device with switching elements and current sensors for each phase of the motor, and a control device. The control device manages the power conversion to step up electric power from the motor's neutral point and supply it to the battery, while ensuring input and output currents are equal and limiting phase currents to prevent exceeding maximum values.
- The patent application focuses on a vehicle power supply device for an electric motor.
- The device includes a battery, a power conversion device, and a control device.
- The control device manages power conversion, current control, and current limiting to protect the system.
Potential Applications:
1. Electric vehicles 2. Hybrid vehicles 3. Electric motorcycles 4. Electric bicycles
Problems Solved:
1. Efficient power supply management for electric motors in vehicles 2. Ensuring equal input and output currents 3. Preventing phase currents from exceeding maximum values
Benefits:
1. Improved energy efficiency 2. Enhanced battery charging capabilities 3. Increased motor performance and longevity
Commercial Applications:
Electric vehicle manufacturers can utilize this technology to enhance the performance and efficiency of their vehicles, attracting environmentally conscious consumers and meeting stringent emissions regulations.
Prior Art:
Readers interested in prior art related to this technology can explore patents and research papers on vehicle power supply systems, electric motor control, and battery charging technologies.
Frequently Updated Research:
Researchers are constantly exploring advancements in electric vehicle technology, including power supply systems and motor control methods. Stay updated on the latest developments in this field for potential improvements and innovations.
Questions about Vehicle Power Supply Device:
1. How does the control device ensure equal input and output currents?
- The control device executes feedback control to adjust currents in each phase accordingly.
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.
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.
