Title:
ディスクブレーキ装置
Document Type and Number:
Japanese Patent JP5898035
Kind Code:
B2
Abstract:
A disk brake apparatus includes a piston thrust mechanism disposed in a caliper and including a thrust member configured to thrust a piston by an electric motor, and a piston holding mechanism configured to hold the thrust piston. When the piston holding mechanism release the holding of the thrust piston, the controller acquires a hydraulic pressure supplied to the caliper. If the hydraulic pressure is a predetermined value or higher, the controller determines whether a thrust force generated by the electric motor is released based on a time period from issue of an instruction to release the holding of the piston and a start of driving of the electric motor. If the hydraulic pressure is lower than the predetermined value, the controller determines whether the thrust force generated by the electric motor is released based on a change status of a current for driving the electric motor.
Inventors:
Takayasu Sakashita
Hirotaka Oikawa
Hirotaka Oikawa
Application Number:
JP2012218358A
Publication Date:
April 06, 2016
Filing Date:
September 28, 2012
Export Citation:
Assignee:
Hitachi Automotive Systems, Ltd.
International Classes:
B60T13/74; B60T8/00; F16D65/18
Domestic Patent References:
| JP2003083373A | ||||
| JP2001510760A |
Foreign References:
| WO2010097938A1 |
Attorney, Agent or Firm:
Kazuhiko Hirose