Patent ID: 7559613

Claim:
An automatic brake control unit for use in an automatic braking device comprising: a hydraulic circuit connecting a master-cylinder and a wheel-cylinder; a pressurizing section for generating pressurizing hydraulic pressure used for generating a wheel-cylinder pressure in the wheel-cylinder higher than a master-cylinder pressure generated by the master-cylinder according to the operation of a brake operating member by a driver; a pressure-control section, intervened in the hydraulic circuit, for controlling the amount of pressurization added to the master-cylinder pressure by using the pressurizing hydraulic pressure generated by the pressurizing section; and an automatic brake control section for supplying, as the wheel-cylinder pressure, a hydraulic pressure obtained by adding the amount of the pressurization to the master-cylinder pressure directly to the wheel cylinder via the hydraulic circuit, and for executing automatic brake control for automatically controlling the wheel-cylinder pressure while the brake operating member is not being operated by the driver, by controlling the pressurizing section and the pressure-control section to control the amount of the pressurization to be greater than zero; wherein the automatic brake control unit comprises: a specific-operation executing section for starting a specific operation when the brake operating member starts to be operated by the driver in a state in which the automatic brake control has already been started by the automatic brake control section, the specific operation bringing the relationship between the operation stroke of the brake operating member by the driver and the wheel-cylinder pressure in a case where the automatic brake control is being executed and the brake operating member is being operated by the driver to the relationship between the operation stroke of the brake operating member by the driver and the wheel-cylinder pressure in a case where the automatic brake control is not being executed and the brake operating member is being operated by the driver.