BRAKE DEVICE

摘要

A brake device used in a vehicle employing a regenerative braking device for applying an electric braking force to road wheels, is provided with a first pump for sucking brake fluid from a master cylinder for generating a brake fluid pressure by a brake operation of the driver and for increasing a wheel-cylinder fluid pressure of a front-wheel system so as to generate a braking force, and a second pump for sucking the brake fluid from a reservoir, and for increasing a wheel-cylinder fluid pressure of a rear-wheel system so as to generate a braking force. Also provided is a brake control unit for calculating a distribution amount among the braking forces respectively produced by the first pump, the second pump, and the regenerative braking device in order to generate a required braking force depending on the brake operation by the driver.

主权项

1. A brake device used in a vehicle employing a regenerative braking device for applying an electric braking force to road wheels comprising:
a target braking force calculation section configured to calculate a target braking force depending on a brake operation state of a driver; a first brake part configured to suck brake fluid from a master cylinder for generating a brake fluid pressure by a brake operation of the driver and increase a wheel-cylinder fluid pressure of one system of a first system and a second system of the vehicle so as to generate a braking force, the first system and the second system being configured independently of each other; a second brake part configured to apply a braking force to the other system of the first system and the second system; and a control unit configured to determine a distribution amount among the braking forces respectively produced by the first brake part, the second brake part, and the regenerative braking device in order to generate the calculated target braking force.