Patent ID: 11858487
Assignee: HITACHI ASTEMO, LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 8:
9. A method for detecting an abnormality in a brake control apparatus, the method comprising:
causing a control unit of the brake control apparatus to actuate a shut-off valve portion in a valve-opening direction, the shut-off valve portion being provided in a connection fluid passage connecting a master cylinder and a braking force application portion to each other, the braking force application portion being configured to apply a braking force to a wheel according to a brake hydraulic pressure;
causing the control unit of the brake control apparatus to actuate a hydraulic pressure source, the hydraulic pressure source being configured to supply brake fluid to a portion of the connection fluid passage that connects the shut-off valve portion and the braking force application portion to each other;
causing the control unit of the brake control apparatus to input a detection value of a first pressure sensor, the first pressure sensor being configured to detect a hydraulic pressure in a portion of the connection fluid passage that connects the shut-off valve portion and the master cylinder to each other;
causing the control unit of the brake control apparatus to input a detection value detected by a second pressure sensor, the second pressure sensor being configured to detect a hydraulic pressure in the portion of the connection fluid passage that connects the shut-off valve portion and the braking force application portion to each other; and
causing the control unit of the brake control apparatus to determine an abnormality in the first pressure sensor or the second pressure sensor based on the detection value of the first pressure sensor and the detection value of the second pressure sensor.