JP2012179961A5 - - Google Patents

Claims (4)

A regenerative braking device that generates a regenerative braking force by an electric motor that drives the vehicle;
The electric actuator that controls the electric actuator that advances and retreats the assist member that is arranged to be movable relative to the input member that moves forward and backward by the operation of the brake pedal, and the electric actuator that moves the input member according to the movement of the input member by the brake pedal. An electric booster that generates a brake fluid pressure boosted in the master cylinder by the assist thrust applied to the assist member;
During braking by the regenerative braking force, the amount of change in the regenerative braking force with a decrease in vehicle speed in a predetermined vehicle speed region is limited, and the brake hydraulic pressure is adjusted by the electric booster in accordance with the decrease in the regenerative braking force. Regenerative fluid pressure control means for increasing
A brake device comprising: The regenerative fluid pressure control means, the high side of the predetermined vehicle speed range, said that the maximum regenerative braking force in a state that does not limit the amount of change of the regenerative braking force is set to a higher vehicle speed than the vehicle speed which occurs The brake device according to claim 1. 3. The brake device according to claim 1, wherein the regenerative fluid pressure control unit sets the vehicle speed at which the maximum regenerative braking force is generated as a median value in the predetermined vehicle speed region. The regenerative fluid pressure control means relaxes the restriction on the amount of change in the regenerative braking force when the amount of change in the regenerative braking force is restricted and the braking torque command based on the operation of the brake pedal decreases. The brake device according to any one of claims 1 to 3.