Title:
ELECTRIC BRAKE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/137734
Kind Code:
A1
Abstract:
In an electric brake mechanism, a piston 6D that is thrusted by a rotation/linear-motion mechanism 8 driven by an electric motor 7A presses a brake pad 6C against a disc rotor 4, and the brake pad 6C is held at the pressed position when the electric motor 7A is stopped. When a retention request (apply command) for the brake pad 6C is issued, a parking brake control device 24 decides a determination time at which it is determined whether to stop the electric motor 7A, on the basis of a change tendency of the current value of the electric motor 7A. When the determination time arrives, the parking brake control device 24 determines whether to stop the electric motor 7A.
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Inventors:
SUZUKI SOTA (JP)
KOBUNE TATSURO (JP)
YOKOYAMA WATARU (JP)
MATSUBARA KENICHIRO (JP)
KOBUNE TATSURO (JP)
YOKOYAMA WATARU (JP)
MATSUBARA KENICHIRO (JP)
Application Number:
PCT/JP2019/049568
Publication Date:
July 02, 2020
Filing Date:
December 18, 2019
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
B60T17/22; B60T8/00; B60T13/74
Foreign References:
| JP2010500511A | 2010-01-07 | |||
| JP2013159269A | 2013-08-19 | |||
| JP2016084035A | 2016-05-19 | |||
| JP2018523610A | 2018-08-23 | |||
| JP2016124403A | 2016-07-11 |
Attorney, Agent or Firm:
ONO, Shinjiro et al. (JP)
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