Patent ID: 11858490
Assignee: ADVICS CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A brake control device applied to a vehicle, the brake control device comprising:
a hydraulic braking device that makes a braking member press against a braked member rotating integrally with wheels by using hydraulic pressure so that hydraulic braking force applied to the front and rear wheels of the vehicle is generated;
an electric braking device that makes the braking member press against the braked member by driving a motor so that an electric braking force applied to an electric braking wheel that is either the front wheel and the rear wheel is generated; and
a control unit that, when execution of a brake hold control for maintaining a stationary state is permitted in a situation where the vehicle is in the stationary state by the hydraulic braking force,
executes the brake hold control in which a propulsion shaft moves toward the braked member so that the propulsion shaft contacts with a piston by driving the electric braking device, in which a differential pressure control valve is controlled so that a required hydraulic braking force applies to a non-electric braking wheel,
the hydraulic braking device having the differential pressure control valve connected to the non-electric braking wheel different from the electric braking wheel,
the required hydraulic braking force calculated by subtracting a first braking force from a target braking force to maintain the stationary state,
the first braking force is the electric braking force applied to the electric braking wheel in the absence of hydraulic pressure after the propulsion shaft contacts with the piston.