Patent ID: 9162658
Filing Date: 2015-10-20
Classification: B60T

Abstract:
1. A brake control device for a vehicle, which is applied to a brake device including a basic fluid pressure generating unit which generates a basic fluid pressure according to an operation to a brake operating member by a driver, a hydraulic pump which generates a differential pressure generation fluid pressure to generate a differential pressure to be added to the basic fluid pressure, a pressure regulating valve which uses the differential pressure generation fluid pressure to regulate the differential pressure, and a friction brake mechanism which applies a wheel cylinder fluid pressure obtained by adding the differential pressure to the basic fluid pressure, to a wheel cylinder, thereby generating a friction braking force according to the wheel cylinder fluid pressure, the brake control device comprising: a differential pressure regulating unit which regulates the differential pressure by controlling the pressure regulating valve according to an operating amount correlated value which is correlated with an operating amount of the brake operating member; and a determining unit which determines whether the vehicle is in a stopped state, wherein the differential pressure regulating unit decreases the differential pressure according to an increase of the basic fluid pressure due to an increase of the operating amount correlated value in a case where it is determined that the vehicle is in the stopped state and the differential pressure is regulated to a value larger than 0 by an operation to the brake operating member, and wherein the differential pressure regulating unit maintains the differential pressure at a constant value when the basic fluid pressure is decreased due to a decrease of the operating amount correlated value in a case where it is determined that the vehicle is in the stopped state and the differential pressure is regulated to a value larger than 0 by an operation to the brake operating member.