Invention Grant
- Patent Title: Electric parking brake device
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Application No.: US15746225Application Date: 2016-07-27
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Publication No.: US10759407B2Publication Date: 2020-09-01
- Inventor: Masatoshi Hanzawa , Tetsuaki Tsuzuki
- Applicant: ADVICS CO., LTD.
- Applicant Address: JP Kariya-Shi, Aichi-Ken
- Assignee: ADVICS CO., LTD.
- Current Assignee: ADVICS CO., LTD.
- Current Assignee Address: JP Kariya-Shi, Aichi-Ken
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@48ae17ad
- International Application: PCT/JP2016/071971 WO 20160727
- International Announcement: WO2017/022584 WO 20170902
- Main IPC: B60T13/74
- IPC: B60T13/74 ; B60T7/12 ; F16D55/226 ; F16D65/18 ; B60T8/171 ; B60T8/172 ; B60T8/32 ; F16D66/00 ; F16D121/24

Abstract:
An electric parking brake device generates pressing force by pressing friction materials against a brake disc by causing a piston to move by motor operation. A control device executes: parking processing wherein the motor increases the pressing force to an initial pressing force higher than a lower-limit pressing force; and re-drive processing wherein the motor is driven and the pressing force increased at a re-drive time, which is a predetermined time after the end of execution of parking processing. During parking processing, the control device uses one among the initial pressing force and the predetermined time, in addition to a pressing force decrease characteristic corresponding to an assumed temperature set for use in calculation, as a basis to calculate the other of the initial pressing force and the predetermined time such that the pressing force becomes equal to or less than the lower-limit pressing force at the re-drive time.
Public/Granted literature
- US20180208170A1 ELECTRIC PARKING BRAKE DEVICE Public/Granted day:2018-07-26
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