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    • 3. 发明授权
    • Brake control apparatus for vehicle
    • 车辆制动控制装置
    • US4705323A
    • 1987-11-10
    • US873385
    • 1986-06-12
    • Yuzo ImotoToshihiro TakeiYoshiyuki HattoriHaruhiko UnoMitsuo InagakiKenji Takeda
    • Yuzo ImotoToshihiro TakeiYoshiyuki HattoriHaruhiko UnoMitsuo InagakiKenji Takeda
    • B60T8/34B60T8/36B60T8/44F16D65/14F16D65/18F16D55/08B60T8/02
    • F16D65/18B60T8/348B60T8/369B60T8/447F16D2121/02F16D2121/28F16D2123/00
    • Wheel cylinders supplied with oil pressure from a master cylinder are respectively provided in brake mechanism provided in wheels of a vehicle. The wheel cylinder has a brake piston provided to form a first fluid chamber to supply oil pressure from the master cylinder, and a brake piston driven by the oil pressure of the first fluid chamber. The wheel cylinder has a piston mechanism formed by laminating thin plate shaped piezoelectric elements, and the piston mechanism is controlled to be expanded or contracted by controlling the voltage applied to the piezoelectric elements to vary the volume of the first fluid chamber. Cut-off valves are provided in passages for supplying the oil pressure from the master cylinder to the wheel cylinders, a check valve for allowing only the work oil to flow from the master cylinder to the wheel cylinder in parallel with the cut-off valve to control to expand the piston in the state the oil pressure is generated from the master cylinder and the cut-off valve is closed to control to further strengthen the oil pressure in the first fluid chamber.
    • 提供有来自主缸的油压的轮缸分别设置在设置在车辆的车轮中的制动机构中。 轮缸具有制动活塞,该制动活塞设置成形成第一流体室,以从主缸提供油压,以及由第一流体室的油压驱动的制动活塞。 轮缸具有通过层叠薄板状压电元件而形成的活塞机构,并且通过控制施加到压电元件的电压来改变第一流体室的体积来控制活塞机构的膨胀或收缩。 截止阀设置在用于将主缸的油压供给到轮缸的通道中,止回阀仅允许工作油从截止阀平行地从主缸流到轮缸, 控制在从主缸产生油压的状态下膨胀活塞,并且截止阀被关闭以控制以进一步增强第一流体室中的油压。