Patent ID: 8016367

Claim:
A brake force control apparatus for a vehicle, comprising: a battery; a motor-generator that performs regenerative braking with a regenerative braking force and charges the battery with electric power regenerated; a frictional braking device that performs frictional braking with a frictional braking force; a collision detecting device operable to detect a collision against an obstacle wherein the collision detecting device is a collision detector that detects the collision by a magnitude of impact exerted on the vehicle; and a controller configured to: set a braking force distribution such that a sum of the regenerative braking force and the frictional braking force becomes equal to a required braking force according to an operator braking action; and start changing the braking force distribution by reducing the regenerative braking force and increasing the frictional braking force when the collision detector detects the collision; and control a changing speed for changing the braking force distribution based on the magnitude of impact when the collision detector detects the collision.