| 摘要 |
PURPOSE: A braking device of a vehicle is provided to make similar effect to an anti-lock braking device without using the anti-lock braking device, by controlling interrupting intermittently the pressure between a boost and an intake manifold. CONSTITUTION: An intermittent negative pressure supplying device is equipped between a booster and an inlet manifold, and supplies the negative pressure intermittently. An ECU is connected with a brake sensor and operates the intermittent negative pressure supplying device. A housing(4) is equipped on the intermittent negative pressure supplying device and includes a piercing hole(3). A rotary member(6) forms several connecting holes(5) for opening and shutting of the piercing hole. A motor(7) is equipped on the housing to rotate the rotary member and is connected with the ECU.
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