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1. (WO2017154670) IN-WHEEL MOTOR DRIVE DEVICE

Pub. No.:    WO/2017/154670    International Application No.:    PCT/JP2017/007795
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: B60K 7/00
F16H 1/06
Applicants: NTN CORPORATION
NTN株式会社
Inventors: TAMURA, Shiro
田村 四郎
TAIKOU, Shinya
太向 真也
Title: IN-WHEEL MOTOR DRIVE DEVICE
Abstract:
An in-wheel motor drive device (10) comprising: a wheel hub bearing (11) rotatably supporting a wheel hub extending in the vehicle width direction; a motor (21) that drives the wheel hub; a deceleration unit (31); and a rotation sensor (61) for detecting wheel rotation. The deceleration unit (31) has: a plurality of gears including an output gear (40) and an input gear (33) that joins to a motor rotation shaft of the motor; and a main body casing (43) that houses the plurality of gears. The rotation of the motor rotation shaft is decelerated and transferred to the wheel hub bearing as a result of the plurality of gears mutually engaging. The rotation sensor (61) is provided inside the main body casing (43), detects the rotation of any one gear (40) among the plurality of gears, and sends a signal indicating the detection results to a control device (70) for the wheel.