PARKING BRAKE CONTROL DEVICE

WIPO Patent Application WO/2021/192449

A1

The purpose of the present invention is to prevent wheels from suddenly locking when motive power of an electric motor is mechanically transmitted to a friction member to brake the wheels while a vehicle is traveling. A parking brake control device (control part 100) controls a parking brake device 200 that mechanically transmits motive power generated by forward rotation of an electric motor 210 to a friction member to press the friction member against a rotational solid that rotates integrally with wheels. The parking brake control device comprises an apply control means 161 that executes apply control causing the electric motor 210 to rotate forward when a start condition for operating the parking brake device 200 is satisfied while the vehicle is traveling, a stop control means 162 that executes stop control causing the rotation of the electric motor 210 to stop on the basis of the wheel deceleration rate during apply control, and a release control means 163 that executes release control causing the electric motor 210 to rotate in reverse on the basis of the amount of slip.

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UNO MASATO (JP)
TAKAHASHI MARI (JP)
SAKAGUCHI TAKASHI (JP)
HIROYA MANABU (JP)
PURANE SANDIP (JP)
HIROYAMA KAZUKI (JP)
KUROSU SHUICHI (JP)

PCT/JP2020/046589

September 30, 2021

December 14, 2020

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HITACHI ASTEMO UEDA LTD (JP)
HITACHI ASTEMO LTD (JP)

B60T13/74; B60T8/1761

WO2016104680A1

2016-06-30

JP2016124408A	2016-07-11
JP2015047945A	2015-03-16
JP2006306299A	2006-11-09
JP2013095258A	2013-05-20

OGAWA Keisuke et al. (JP)

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