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Title:
IN-WHEEL MOTOR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2004/020236
Kind Code:
A1
Abstract:
An in-wheel motor system, wherein the rotating side case (3b) of an in-wheel motor (3) is connected to a wheel (2) through a flexible coupling (10) having a plurality of hollow disk plates (11A to 11C) and direct-acting guides (12A, 12B), and the non-rotating side case (3a) of the motor (3) is connected to the lower part of a vehicle spring through a damping mechanism (20) having two plates (26, 27) connected to each other through first spring elements (22) and a damper (25) with a spring element disposed parallel with the first spring elements (22) and formed of a damper (23) and a second spring element (24) connected in series to each other and connecting the non-rotating side case (3a) of the motor to the knuckle (5) as the frame dress-up part of a vehicle, whereby the drive force of the in-wheel motor (3) can be surely transmitted to the wheel (2) and the road holding performance of the vehicle can be increased by remarkably reducing a variation in ground-contact load of a tire.

Inventors:
Nagaya, Go c/o Kabushiki Kaisha Bridgestone (Technical Center 1-1, Ogawahigashi-cho 3-chom, Kodaira-shi Tokyo, 187-8531, JP)
Application Number:
PCT/JP2003/011027
Publication Date:
March 11, 2004
Filing Date:
August 29, 2003
Export Citation:
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Assignee:
KABUSHIKI KAISHA BRIDGESTONE (10-1 Kyobashi 1-chome, Chuo-ku, Tokyo, 104-8340, JP)
Nagaya, Go c/o Kabushiki Kaisha Bridgestone (Technical Center 1-1, Ogawahigashi-cho 3-chom, Kodaira-shi Tokyo, 187-8531, JP)
International Classes:
B60G3/01; B60G7/00; B60G9/00; B60K7/00; (IPC1-7): B60K7/00
Domestic Patent References:
WO1995016300A1
Foreign References:
JP2000309269A
JPH0331029A
Other References:
See also references of EP 1547844A1
Attorney, Agent or Firm:
Miyazono, Junichi (6th Fl, Fifth Tanaka Bldg. 4-4, Iidabashi 3-chom, Chiyoda-ku Tokyo, 102-0072, JP)
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