Invention Grant
- Patent Title: Parking brake control device
- Patent Title (中): 驻车制动控制装置
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Application No.: US13129631Application Date: 2010-09-09
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Publication No.: US08622179B2Publication Date: 2014-01-07
- Inventor: Takashi Watanabe , Tetsuaki Tsuzuki , Kazuma Kondo , Kentaro Yuasa
- Applicant: Takashi Watanabe , Tetsuaki Tsuzuki , Kazuma Kondo , Kentaro Yuasa
- Applicant Address: JP Kariya, Aichi-Pref.
- Assignee: Advics Co., Ltd.
- Current Assignee: Advics Co., Ltd.
- Current Assignee Address: JP Kariya, Aichi-Pref.
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JP2009-217236 20090918
- International Application: PCT/JP2010/065485 WO 20100909
- International Announcement: WO2011/033983 WO 20110324
- Main IPC: F16D55/22
- IPC: F16D55/22

Abstract:
A parking brake control device performs a releasing control with good precision by more precisely maintaining clearance between a friction-applying member and a friction-applied member. During a releasing control, a timing at which a braking force generated by an electric parking brake 2 drops to zero is detected based on a change in a motor current, and a second releasing operation time is set according to the magnitude of the motor current at the time the braking force drops to zero. This makes it possible for the second releasing operation time to be set in accordance with fluctuations in a motor load due to temperature changes or the like. Therefore, a clearance between a brake pad and a brake disc can be kept constant according to the motor load.
Public/Granted literature
- US20110278108A1 PARKING BRAKE CONTROL DEVICE Public/Granted day:2011-11-17
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