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    • 59. 发明授权
    • Combined antiskid and traction control electronic brake system
    • 组合防滑牵引控制电子制动系统
    • US5282676A
    • 1994-02-01
    • US798714
    • 1991-11-27
    • Kenji TakedaHiroshi OgawaMitsuo Inagaki
    • Kenji TakedaHiroshi OgawaMitsuo Inagaki
    • B60T8/46B60T8/175B60T8/34B60T8/40B60T8/42B60T8/44B60T8/48B60T8/32
    • B60T8/341B60T8/4018B60T8/4045B60T8/4275B60T8/445B60T8/4827B60T8/4872
    • A brake system capable of implementing anti-skid and traction control operations has an electromagnetic valve for connecting a master cylinder to a wheel cylinder and for disconnecting the master cylinder from the wheel cylinder when anti-skid or traction control is executed. A piezo-electric hydraulic pump is provided for introducing high-pressure brake oil when anti-skid or traction control is executed. A pressure reduction valve selectively introduces and removes brake oil so that a desired wheel cylinder pressure can be attained when anti-skid or traction control is executed. A hydraulic switching valve is connected to the main oil pressure line parallel to the electromagnetic valve and allows pressure in the master cylinder to be opened to the wheel cylinder during a braking operation. The system also includes a unit for establishing one-way communication from the wheel cylinder to the master cylinder during anti-skid control to prevent pressure in the wheel cylinder from being higher than that in the master cylinder while preventing connection between the master cylinder and the wheel cylinder during traction control.
    • 能够实现防滑和牵引力控制操作的制动系统具有用于将主缸连接到轮缸的电磁阀,并且在执行防滑或牵引控制时将主缸与轮缸分离。 提供压电液压泵,用于在执行防滑或牵引力控制时引入高压制动油。 减压阀选择性地引入和去除制动油,使得在执行防滑或牵引力控制时可以获得期望的轮缸压力。 液压切换阀连接到与电磁阀平行的主油压线,并且允许主缸中的压力在制动操作期间向轮缸打开。 该系统还包括用于在防滑控制期间从轮缸到主缸的单向通信的单元,以防止轮缸中的压力高于主缸中的压力,同时防止主缸和主缸之间的连接 牵引力控制下的轮缸。
    • 60. 发明授权
    • Piezoelectric servomechanism apparatus
    • 压电伺服机构
    • US4765140A
    • 1988-08-23
    • US816052
    • 1986-01-03
    • Yuzo ImotoYoshiyuki HattoriToshihiro TakeiMitsuo Inagaki
    • Yuzo ImotoYoshiyuki HattoriToshihiro TakeiMitsuo Inagaki
    • F16K31/02B60T8/32B60T8/36B60T8/42B60T8/48F16D29/00F16D65/18H01L41/083F15B7/00
    • B60T8/3205B60T8/369B60T8/4208B60T8/4809F16D29/00
    • A floating plate is provided in a cylinder chamber and slides freely like a piston. A first group of laminated, ring-shaped, thin-plate piezoelectric elements is provided between a fixed support member provided on part of a wall portion of this cylinder chamber and the floating plate. A second group of laminated, cylindrical, thin-plate piezoelectric elements is provided in the center of the first group and a working member is provided on the free end of the second group of elements that is not attached to the floating plate. A hydraulic chamber is formed in the cylinder chamber on the side of the floating plate opposite to the side on which the first and second groups of elements are provided, and the pressure in this hydraulic chamber pushes the floating plate in the direction of the fixed support member. Voltage is applied to the first and second groups of elements to expand and contract them thereby varying the distance between the floating plate and the fixed support member and varying the distance between the floating plate and the working member.
    • 浮动板设置在气缸室中,像活塞一样自由滑动。 第一组层叠的环形薄板压电元件设置在设置在该气缸室的壁部的一部分上的固定支撑构件和浮动板之间。 在第一组的中心设置有第二组层叠的圆柱形薄板压电元件,并且在第二组元件的自由端上设置工作构件,该第二组元件未附接到浮动板。 在浮动板的与设置有第一和第二组元件的一侧相对的一侧的气缸室中形成液压室,并且该液压室中的压力沿着固定支撑件的方向推动浮动板 会员。 电压被施加到第一和第二组元件以使其膨胀和收缩,从而改变浮动板和固定支撑构件之间的距离并改变浮动板和工作构件之间的距离。