Title:
液圧制御ユニット
Document Type and Number:
Japanese Patent JP7142465
Kind Code:
B2
Abstract:
The present disclosure obtains a hydraulic pressure control unit capable of appropriately diagnosing presence or absence of fixation of an electromagnetic valve. In the hydraulic pressure control unit according to the present disclosure, a controller includes: an acquisition section that acquires a current value of a current flowing through a coil of the electromagnetic valve in a hydraulic pressure control mechanism; and a diagnosis section that determines whether the current value has exhibited behavior of being temporarily reduced in a process in which the current value is increased at initiation of applying the current to the coil of the electromagnetic valve, so as to diagnose the presence or the absence of the fixation of the electromagnetic valve.
Inventors:
Gao Shun
Application Number:
JP2018097794A
Publication Date:
September 27, 2022
Filing Date:
May 22, 2018
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
B60T8/88; B60G13/08; B60T8/34; F16K37/00
Domestic Patent References:
| JP5058539U | ||||
| JP2011131706A | ||||
| JP2002246229A | ||||
| JP2002220041A |
Foreign References:
| US6111514 |
Attorney, Agent or Firm:
Reiji Oba
Hajime Takahashi
Go Yashima
Shusaku Tabuchi
Hajime Takahashi
Go Yashima
Shusaku Tabuchi