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1. (WO2018084303) ELECTRIC BRAKING DEVICE FOR VEHICLE

Pub. No.:    WO/2018/084303    International Application No.:    PCT/JP2017/040013
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Wed Nov 08 00:59:59 CET 2017
IPC: B60T 17/22
B60T 13/74
F16D 65/40
Applicants: ADVICS CO., LTD.
株式会社アドヴィックス
Inventors: TSUKAMOTO, Shun
塚本 駿
YUKOKU, Shinichiro
幽谷 真一郎
Title: ELECTRIC BRAKING DEVICE FOR VEHICLE
Abstract:
Provided is an electric braking device wherein a friction member MS is pressed, via a piston PSN driven by an electric motor MTR, against a rotary member KT that rotates integrally with a vehicle wheel WH, thus generating a braking force on the vehicle wheel WH. The electric braking device is provided with: a controller CTL for controlling the electric motor MTR; a rotation angle sensor MKA for detecting a rotation angle Mka of the electric motor MTR; and a return mechanism MDK for applying a return force Frt to a piston PSN in a direction away from the rotary member KT. Furthermore, the controller CTL executes a proper/improper determination to determine whether the return mechanism MDK is operating properly on the basis of a change in the rotation angle Mka after conduction of electricity to the electric motor MTR is stopped.