18382752. IN-WHEEL MOTOR DRIVING DEVICE simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)

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IN-WHEEL MOTOR DRIVING DEVICE

Organization Name

TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor(s)

Keita Imai of Seto-Shi Aichi-ken (JP)

Kiichi Yokoyama of Toyota-shi Aichi-ken (JP)

Hiroki Monji of Toyota-shi Aichi-ken (JP)

Yusuke Ueta of Haibara-gun Shizuoka-ken (JP)

Tatsuya Sakai of Toyota-shi Aichi-ken (JP)

IN-WHEEL MOTOR DRIVING DEVICE - A simplified explanation of the abstract

This abstract first appeared for US patent application 18382752 titled 'IN-WHEEL MOTOR DRIVING DEVICE

The abstract describes an in-wheel motor drive device that includes a motor housed in a wheel of a drive wheel, a reduction gear case housing a reduction gear, and multiple fastening bolts for securing the motor case and the reduction gear case. Specifically, a pair of fastening bolts facing each other across a stator coil end portion of the motor are arranged on the same straight line in a radial direction orthogonal to the motor's axis direction.

  • Motor housed in a wheel of a drive wheel
  • Reduction gear case housing a reduction gear
  • Fastening bolts for securing the motor case and reduction gear case
  • Pair of fastening bolts arranged on the same straight line in a radial direction across the stator coil end portion of the motor

Potential Applications: - Electric vehicles - Hybrid vehicles - Autonomous vehicles

Problems Solved: - Efficient integration of motor and reduction gear in a wheel - Secure fastening of motor case and reduction gear case

Benefits: - Compact design - Improved vehicle performance - Simplified maintenance and repair processes

Commercial Applications: Title: "In-Wheel Motor Drive Device for Electric Vehicles" This technology can be utilized in the automotive industry for electric and hybrid vehicles, offering a compact and efficient solution for integrating motors and reduction gears within the wheels. This innovation can lead to improved vehicle performance and simplified maintenance processes, making it an attractive option for manufacturers looking to enhance their electric vehicle offerings.

Questions about In-Wheel Motor Drive Device: 1. How does the placement of the fastening bolts contribute to the overall efficiency of the device? The placement of the fastening bolts ensures secure attachment of the motor case and reduction gear case, enhancing the stability and performance of the in-wheel motor drive device.

2. What are the potential challenges in implementing this technology in different types of vehicles? Implementing this technology in various types of vehicles may require adaptations to accommodate different wheel sizes and configurations, as well as integration with existing vehicle systems.


Original Abstract Submitted

An in-wheel motor drive device includes: a motor case housing a motor provided in a wheel of a drive wheel; a reduction gear case housing a reduction gear; and a plurality of fastening bolts for fastening the motor case and the reduction gear case. Further, among the plurality of fastening bolts, a pair of fastening bolts facing each other across a stator coil end portion of the motor is arranged on a same straight line in a radial direction orthogonal to an axis direction of the motor.