| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a brake fluid pressure control system capable of meeting accuracy requirement for pressure increase/decrease control, quietness requirement for running assist control and durability requirement for control unit addition while maintaining low cost. <P>SOLUTION: A fluid pressure control actuator comprises an ABS fluid pressure control circuit 4 composed of a fluid pressure control booster 2 for increasing/decreasing master cylinder pressure in accordance with a control command from the outside, intensifying valves and decompressing valves for each wheel between a master cylinder 3 and wheel cylinders 5FL, 5FR, 5RL, 5RR and a pump motor for driving a pump. A brake controller drivingly controls the motor 44 only in a decompression mode during ABS control. During running support brake control, required wheels for braking force is controlled so as to be increased/decreased by drivingly controlling the fluid pressure control booster 2 and the valves 41, 42 with the pump motor 45 stopped. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
