Toyota jidosha kabushiki kaisha (20240204612). DRIVING APPARATUS FOR ELECTRIC VEHICLE simplified abstract

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DRIVING APPARATUS FOR ELECTRIC VEHICLE

Organization Name

toyota jidosha kabushiki kaisha

Inventor(s)

Yuto Masuda of Toyota-shi (JP)

Koichi Okuda of Toyota-shi (JP)

Taiki Owari of Kariya-shi (JP)

Toshihisa Mizutani of Kariya-shi (JP)

DRIVING APPARATUS FOR ELECTRIC VEHICLE - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240204612 titled 'DRIVING APPARATUS FOR ELECTRIC VEHICLE

The driving apparatus for an electric vehicle described in the patent application consists of an electric motor with a rotary shaft and rotor, a speed reducer to reduce the rotation speed of the motor shaft, and a housing that separates the motor and speed reducer into different compartments.

  • The electric motor is supported by the rotary shaft and housed in the electric motor room within the housing.
  • The speed reducer is designed to reduce the speed of rotation of the motor shaft and is housed in the speed reducer room within the housing.
  • The housing is partitioned by a partition wall to keep the electric motor and speed reducer separate.
  • Different refrigerants are used in the electric motor room and speed reducer room to maintain optimal operating conditions.
  • Part of the speed reducer room is received in the electric motor room in the axial direction of the rotary shaft.

Potential Applications: - Electric vehicles - Automotive industry - Electric motor technology

Problems Solved: - Efficient cooling and operation of electric motor and speed reducer - Optimal performance of the driving apparatus in electric vehicles

Benefits: - Improved efficiency and longevity of electric vehicle components - Enhanced performance and reliability of the driving apparatus

Commercial Applications: Electric Vehicle Driving Systems: Enhancing efficiency and performance in electric vehicles

Questions about the technology: 1. How does the use of different refrigerants in the electric motor room and speed reducer room improve overall performance? 2. What are the key advantages of housing the electric motor and speed reducer in separate compartments within the same housing?


Original Abstract Submitted

a driving apparatus for an electric vehicle includes (a) an electric motor including a rotary shaft and a rotor that is rotatably supported by the rotary shaft, (b) a speed reducer configured to reduce a speed of rotation of the rotary shaft of the electric motor and to output the rotation of the rotary shaft, and (c) a housing that houses the electric motor and the speed reducer. the housing is partitioned by a partition wall into an electric motor room in which the electric motor is housed and a speed reducer room in which the speed reducer is housed. a first refrigerant used in the electric motor room and a second refrigerant used in the speed reducer room are different from each other. at least a part of the speed reducer room is received in the electric motor room in an axial direction of the rotary shaft.

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