Title:
BRAKE DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/104683
Kind Code:
A1
Abstract:
The present invention enables suitable control of stepped increases in the clamping force of a brake device equipped with an electric parking brake function. A computation circuit (20), a memory (21), motor drive circuits (23), and the like of a parking brake control device (19) constitute a control unit, said control unit also configured to include a stepped-increase control unit that increases, in a stepped manner, the clamping force applied by brake pads (33) to a disc rotor (4). If the start of contact between the disc rotor (4) and the brake pads (33) as a result of power supplied from the parking brake control device (19) to an electric motor (43B) is detected by a current sensor unit (24) through a motor current, the stepped-increase control unit executes a control in accordance with a predetermined processing sequence, wherein the supply of power to the electric motor (43B) is repeatedly started and stopped so as to increase the clamping force in a stepped manner.
Inventors:
KOBUNE TATSURO (JP)
YOKOYAMA WATARU (JP)
MATSUBARA KENICHIRO (JP)
YOKOYAMA WATARU (JP)
MATSUBARA KENICHIRO (JP)
Application Number:
PCT/JP2015/086184
Publication Date:
June 30, 2016
Filing Date:
December 25, 2015
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
B60T13/74; B60T8/00; F16D55/22
Foreign References:
| JP2006070962A | 2006-03-16 | |||
| JP2008068838A | 2008-03-27 | |||
| JP2008049800A | 2008-03-06 | |||
| JPH04271945A | 1992-09-28 |
Attorney, Agent or Firm:
ONO, Shinjiro et al. (JP)
Ono Shinjiro (JP)
Ono Shinjiro (JP)
Download PDF: