Patent ID: 8714662
Filing Date: 2014-05-06
Classification: B60T

Abstract:
1. A hydraulic brake system comprising: a brake device provided for a wheel: a cylinder device operable to supply to the brake device a brake fluid which is pressurized; a brake operating member which is operated by a driver; a high-pressure-source device which supplies the brake fluid in high pressure; a control device which controls a pressure of the brake fluid supplied from the high-pressure-source device on the basis of the operation of the brake operating member; and a braking state switching device which is configured to switch between (a) a first braking state in which a brake force is generated with a magnitude that depends on a controlled pressure which is a pressure of the brake fluid pressurized by the high-pressure-source device and controlled by the control device; and (b) a second braking state in which, in addition to the brake force with the magnitude that depends on the controlled pressure, a brake force with a magnitude that depends on a brake operation force which is a driver's force applied to the brake operating member is generated, whereby a brake force with a magnitude that is larger than a magnitude of a maximum brake force generated when the controlled pressure becomes equal to the pressure of the brake fluid supplied from the high-pressure-source device, is generated.