Title:
電動パーキングブレーキ装置
Document Type and Number:
Japanese Patent JP7417709
Kind Code:
B2
Abstract:
Provided is an electric parking brake device in which a drum brake includes braking gap automatic adjustment means and a parking brake lever, and the operation of an electric actuator that drives the parking brake lever is controlled by a control unit. When an application operation time of the electric actuator (38) by the time when a parking brake state is obtained has exceeded a predetermined application operation end determination time (T2), the control unit (C) determines that the braking gap automatic adjustment means (18) is abnormal. With this configuration, at the time of obtaining the parking brake state, the presence or absence of abnormality in the braking gap automatic adjustment means can be determined.
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| JP2006160203 | ELECTRIC PARKING BRAKE DEVICE |
Inventors:
Prane Sandip
Yasuhiro Yamamoto
Mari Takahashi
Yasuhiro Yamamoto
Mari Takahashi
Application Number:
JP2022505769A
Publication Date:
January 18, 2024
Filing Date:
December 18, 2020
Export Citation:
Assignee:
Hitachi Astemo, Ltd.
Hitachi Astemo Ueda Co., Ltd.
Hitachi Astemo Ueda Co., Ltd.
International Classes:
B60T17/22; B60T13/74; F16D65/22; F16D65/54; F16D66/00
Domestic Patent References:
| JP2016175587A | ||||
| JP2007203821A | ||||
| JP201643798A | ||||
| JP2018184093A | ||||
| JP20197537A |
Foreign References:
| US20050236234 |
Attorney, Agent or Firm:
Keisuke Ogawa