| 摘要 |
An electronic brake control system is provided to achieve compactness of a modulator box mounting a motor and a pump, and reduce operational noise and pressure pulse. An electronic brake control system comprises a master cylinder assembly(10), a plurality of brake cylinders, first and second hydraulic circuits(30,80), and first and second pump units(50,70). The brake cylinders perform braking of a wheel using hydraulic pressure supplied from the master cylinder assembly. The first and the second hydraulic circuits connect the master cylinder assembly with a plurality of brake cylinders. The first and the second pump units are mounted on the first and the second hydraulic circuits and driven by a motor unit(60). The first pump unit comprises first and second pumps(52,54), and the second pump unit comprises third and fourth pumps(72,74). The first and the second pumps are disposed at 0 degree and 90 degree with respect to a rotational shaft of a motor, respectively. The third and the fourth pumps are disposed at 180 degree and 270 degree, respectively. |
