Vehicle brake system

Details Vehicle brake system Vehicle brake system

2007-03-21

2011-10-25

Nguyen, Xuan Lan (Department: 3657)

Fluid-pressure and analogous brake systems

Speed-controlled

Regenerative brakes

C303S115400, C188S156000

Reexamination Certificate

active

08042886

ABSTRACT:
A vehicle brake system is provided with a brake ECU serving as controlled hydraulic brake force control for executing a controlled hydraulic brake force control to decrease the rotational speed of an electric motor when at least both of a regenerative brake force and a controlled hydraulic brake force are being applied. The brake ECU decreases the rotational speed of the electric motor when the gradient of a target controlled hydraulic brake force being a controlled hydraulic pressure command value given to a hydraulic brake device is downhill or is not present. Thus, the pressured fluid supplied from a pump driven by the electric motor to be supplied to wheel cylinders of a vehicle is decreased to enhance the efficiency in utilizing the regenerative energy which an electric motor for driving the vehicle has in dependence on the stepping state of a brake pedal.

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Office Action issued Mar. 30, 2010 by the German Patent Office in corresponding German Patent Application No. 10 2007 000 180.2-21, and English-language translation of Office Action.
Office Action issued Nov. 2, 2010 by the Japanese Patent Office in Japanese Patent Application No. 2006-110477, and English language translation of Official Action.

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