| 摘要 |
A hydraulic brake system for a vehicle is provided to improve control performance by improving response performance of an inter-vehicle distance control system, and to perform faster deceleration at the time of collision danger by improving the response performance of a collision damage reducing system. A hydraulic brake system for a vehicle comprises a third accumulator(28) and a thirteenth valve(24), and a fourth accumulator(29) and a fourteenth valve(25). The third accumulator and the thirteenth valve are connected to the first and second valves. The fourth accumulator and the fourteenth valve are connected to the seventh and eighth valves(18,19). Pressure stored in the third and fourth accumulators is discharged by opening the thirteenth and fourteenth valves in case of entry of a pre-fill mode so as to apply the pressure to FL, RR, FR, RL calipers(37,38,39,40). Brake pressure formed in a hydraulic line is stored to the third and fourth accumulators by reopening the closed thirteenth and fourteenth valves in case of entry of a reserve mode.
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