Patent ID: 8544966

Claim:
A brake controller for a vehicle, wherein the vehicle includes a brake rotor integrally rotating with a wheel, a brake pad capable of moving in directions to approach and move away from the brake rotor, and a brake device for providing a driving force to the brake pad in order to make the brake pad approach the brake rotor, wherein the brake controller is mounted on the vehicle to control the driving of the brake device, the brake controller comprising: a rough road index calculating section for calculating a rough road index in a predetermined cycle, wherein the rough road index indicates an unevenness degree of the road on which the vehicle travels; and a controlling section for controlling the driving of the brake device to provide the driving force to the brake pad for a predetermined time when the rough road index calculated by the rough road index calculating section is changed from a value equal to or greater than a threshold value to a value less than the threshold value, wherein the threshold value is a predetermined value as a reference value to determine whether the road is a rough road in which the road surface has relatively large degree of unevenness or a smooth road in which the road surface has relatively small degree of unevenness, wherein the rough road index calculating section updates and stores a maximum value of the rough road index during travel of the vehicle on the rough road, wherein the controlling section controls the driving of the brake device so that the driving force provided to the brake pad becomes larger as the currently stored maximum value of the rough road index becomes larger when the rough road index calculated by the rough road index calculating section is changed from the value equal to or greater than the threshold value to the value less than the threshold value.