公开(公告)号：US4762300A

公开(公告)日：1988-08-09

申请号：US830132

申请日：1986-02-18

申请人： Mitsuo Inagaki ,  Hideaki Sasaya ,  Kenji Takeda ,  Yoshiyuki Hattori ,  Yuzo Imoto ,  Toshihiro Takei

发明人： Mitsuo Inagaki ,  Hideaki Sasaya ,  Kenji Takeda ,  Yoshiyuki Hattori ,  Yuzo Imoto ,  Toshihiro Takei

IPC分类号： B60T8/36 ,  B60T8/42 ,  B60T8/50 ,  F16K31/00 ,  F16K31/02

CPC分类号： B60T8/5075 ,  B60T8/369 ,  B60T8/4275 ,  B60T8/5006 ,  F16K31/007

摘要： A piston in a first cylinder is driven as a piezoelectric element group, which includes a plurality of laminar piezoelectric elements stacked in layers, extends or contracts. A second cylinder is formed so as to connect with a first fluid pressure chamber which is defined in the first cylinder by the piston. A piston-shaped valve member is disposed in the second cylinder. The valve member is urged toward the first fluid pressure chamber by a spring. The first fluid pressure chamber is supplied with a fluid whose pressure is set by means of a selector valve. When the selector valve is closed, the fluid pressure chamber is defined as an independent compartment. In this state, high voltage is applied to the piezoelectric element group to elongate it, thereby driving the piston. Thus, the valve member is actuated by the fluid pressure inside the first fluid pressure chamber, and a fluid passage is opened and closed by the valve member.

摘要翻译： 第一气缸中的活塞被驱动为压电元件组，其包括层叠的多个层压压电元件，延伸或收缩。 第二气缸形成为与由活塞限定在第一气缸中的第一流体压力室连接。 活塞形阀构件设置在第二气缸中。 阀构件通过弹簧被推向第一流体压力室。 第一流体压力室被供给流体，其压力通过选择阀设定。 当选择阀关闭时，流体压力室被定义为独立的隔室。 在这种状态下，高压施加到压电元件组以使其伸长，从而驱动活塞。 因此，阀构件由第一流体压力室内的流体压力致动，并且流体通道被阀构件打开和关闭。

公开(公告)号：US4705323A

公开(公告)日：1987-11-10

申请号：US873385

申请日：1986-06-12

申请人： Yuzo Imoto ,  Toshihiro Takei ,  Yoshiyuki Hattori ,  Haruhiko Uno ,  Mitsuo Inagaki ,  Kenji Takeda

发明人： Yuzo Imoto ,  Toshihiro Takei ,  Yoshiyuki Hattori ,  Haruhiko Uno ,  Mitsuo Inagaki ,  Kenji Takeda

IPC分类号： B60T8/34 ,  B60T8/36 ,  B60T8/44 ,  F16D65/14 ,  F16D65/18 ,  F16D55/08 ,  B60T8/02

CPC分类号： F16D65/18 ,  B60T8/348 ,  B60T8/369 ,  B60T8/447 ,  F16D2121/02 ,  F16D2121/28 ,  F16D2123/00

摘要： 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.

摘要翻译： 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。

公开(公告)号：US4765140A

公开(公告)日：1988-08-23

申请号：US816052

申请日：1986-01-03

申请人： Yuzo Imoto ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Mitsuo Inagaki

发明人： Yuzo Imoto ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Mitsuo Inagaki

IPC分类号： F16K31/02 ,  B60T8/32 ,  B60T8/36 ,  B60T8/42 ,  B60T8/48 ,  F16D29/00 ,  F16D65/18 ,  H01L41/083 ,  F15B7/00

CPC分类号： B60T8/3205 ,  B60T8/369 ,  B60T8/4208 ,  B60T8/4809 ,  F16D29/00

摘要： 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.

摘要翻译： 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。

公开(公告)号：US4630871A

公开(公告)日：1986-12-23

申请号：US792927

申请日：1985-10-30

申请人： Yuzo Imoto ,  Hideo Wakata ,  Toshihiro Takei ,  Yoshiyuki Hattori ,  Yoshihisa Nomura

发明人： Yuzo Imoto ,  Hideo Wakata ,  Toshihiro Takei ,  Yoshiyuki Hattori ,  Yoshihisa Nomura

IPC分类号： B60T8/46 ,  B60T8/1761 ,  B60T8/44 ,  B60T8/04

CPC分类号： B60T8/445 ,  Y10S303/90

摘要： An antiskid control device including a main line system for a usual braking operation and a subline system for an antiskid control, in which the flow rate of the subline system is smaller than the flow rate of the mainline system. The main piping system is provided with a cut-off valve which opens at a usual braking operation and closes at an antiskid control. The subline system is provided with a first control valve for opening the subline system and a second control valve for opening or closing the subline system at an antiskid control. The second control valve opens the subline system to supply a small quantity of brake oil to the wheel cylinder, and closes the subline system to release the brake oil in the wheel cylinder to the outside thereof.

摘要翻译： 一种防滑控制装置，其包括用于通常制动操作的主线系统和用于防滑控制的副线系统，其中副线系统的流量小于主线系统的流量。 主管道系统设有截止阀，在通常的制动操作下打开，并在防滑控制下关闭。 分线系统设有用于打开副线系统的第一控制阀和用于在防滑控制下打开或关闭副线系统的第二控制阀。 第二控制阀打开副线系统以向轮缸提供少量制动油，并且关闭副线系统以将轮缸中的制动油释放到其外部。

公开(公告)号：US4714296A

公开(公告)日：1987-12-22

申请号：US800113

申请日：1985-11-19

申请人： Yuzo Imoto ,  Hideo Wakata ,  Toshihiro Takei ,  Yoshiyuki Hattori

发明人： Yuzo Imoto ,  Hideo Wakata ,  Toshihiro Takei ,  Yoshiyuki Hattori

IPC分类号： B60K28/16 ,  B60T8/175 ,  B60T8/26 ,  B60T8/48 ,  B60W10/04 ,  B60W10/18 ,  B60W10/184 ,  G05D16/10 ,  B60T13/00 ,  B60T8/44

CPC分类号： B60T8/175 ,  B60T8/48 ,  B60T8/4827 ,  B60T8/4836 ,  B60T2270/203

摘要： A hydraulic control valve may have a first chamber having an input port, to which an input hydraulic pressure is applied and an output port, and a second chamber having a third port to which a hydraulic control pressure is applied. When a hydraulic pressure below a predetermined level is applied to the first port, the same hydraulic pressure is produced at the second port. When a hydraulic pressure above the predetermined level is applied to the first port, the hydraulic pressure is reduced at a fixed ratio, and thereby a hydraulic pressure lower than the hydraulic pressure applied to the first port is produced at the second port. Thus the hydraulic control valve functions as a proportional valve. When a hydraulic control pressure is applied to the third port, the first and second port are disconnected. Thus the hydraulic control valve functions as a cutoff valve.

摘要翻译： 液压控制阀可以具有第一室，其具有施加输入液压的输入端口和输出端口，以及具有施加液压控制压力的第三端口的第二室。 当低于预定水平的液压被施加到第一端口时，在第二端口处产生相同的液压。 当将高于预定水平的液压施加到第一端口时，以固定比例降低液压，从而在第二端口处产生低于施加到第一端口的液压的液压压力。 因此，液压控制阀用作比例阀。 当向第三端口施加液压控制压力时，第一和第二端口断开。 因此，液压控制阀用作截止阀。

公开(公告)号：US4629039A

公开(公告)日：1986-12-16

申请号：US816051

申请日：1986-01-03

申请人： Yuzo Imoto ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Taro Tanaka

发明人： Yuzo Imoto ,  Yoshiyuki Hattori ,  Toshihiro Takei ,  Taro Tanaka

IPC分类号： B60T8/36 ,  B60T8/42 ,  B60T8/48 ,  F16D55/224 ,  F16D65/14 ,  F16D65/18 ,  H01L41/09 ,  B60T8/02 ,  F16D55/08

CPC分类号： F16D55/224 ,  B60T8/369 ,  B60T8/4266 ,  B60T8/4809 ,  F16D65/18 ,  F16D2121/02 ,  F16D2121/28 ,  F16D2123/00 ,  F16D2125/10

摘要： A wheel cylinder is formed in the brake caliper for each wheel of a vehicle and brake fluid is supplied from a master cylinder to this wheel cylinder by way of a fluid passage. A brake piston is provided inside the wheel cylinder and includes a piezoelectric piston device inside. By the application of voltage, this piezoelectric piston device expands and contracts the brake piston. A control valve is provided in the fluid passage to open and close it to selectively partition off the master cylinder. When the control valve has closed the passage, a voltage is applied to the piezoelectric piston device to expand it and control the pressure acting on the brake piston in the wheel cylinder to vary the braking force.

摘要翻译： 在车辆的每个车轮的制动钳中形成有轮缸，并且制动流体通过流体通道从主缸供应到该轮缸。 制动活塞设置在轮缸内部并且内部包括压电活塞装置。 通过施加电压，该压电活塞装置使制动活塞膨胀并收缩。 控制阀设置在流体通道中以打开和关闭，以选择性地分离主缸。 当控制阀关闭通道时，向压电活塞装置施加电压以使其膨胀并且控制作用在轮缸中的制动器活塞上的压力以改变制动力。

公开(公告)号：US4796957A

公开(公告)日：1989-01-10

申请号：US799166

申请日：1985-11-18

申请人： Hideo Wakata ,  Yuzo Imoto ,  Toshihiro Takei ,  Yoshiyuki Hattori

发明人： Hideo Wakata ,  Yuzo Imoto ,  Toshihiro Takei ,  Yoshiyuki Hattori

IPC分类号： B60T8/175 ,  B60T8/48 ,  B60T13/00

CPC分类号： B60T8/4836 ,  B60T8/175 ,  B60T8/48 ,  B60T8/4827 ,  B60T2270/203

摘要： When excessive acceleration slip of a driving wheel is detected by wheel speed sensors attached to driving and non-driving wheels, an electronic control unit provides first and second control signals to a change-over valve and a control valve, respectively. The change-over valve operates in accordance with the first control signal to supply hydraulic pressure from a hydraulic pump to control a cut-off valve to thereby cut off communication between a master cylinder and a wheel cylinder. At the same time, hydraulic pressure from the hydraulic pump is fed to the wheel cylinder through the change-over valve and the control valve to brake the driving wheel. The control valve operates in accordance with the second control signal to increase or decrease the pressure in the wheel cylinder thereby adjusting the braking force for the driving wheel.

摘要翻译： 当通过连接到驱动轮和非驱动轮的车轮速度传感器检测到驱动轮的过度加速滑动时，电子控制单元分别向转换阀和控制阀提供第一和第二控制信号。 转换阀根据第一控制信号操作以从液压泵提供液压来控制截止阀，从而切断主缸和轮缸之间的连通。 同时，来自液压泵的液压通过转换阀和控制阀被供给到轮缸，以制动驱动轮。 控制阀根据第二控制信号进行操作，以增加或减小轮缸中的压力，从而调节驱动轮的制动力。

公开(公告)号：US4836618A

公开(公告)日：1989-06-06

申请号：US69515

申请日：1987-07-02

申请人： Hideo Wakata ,  Toshihiro Takei ,  Yoshiyuki Hattori ,  Haruhiko Uno ,  Yuzo Imoto

发明人： Hideo Wakata ,  Toshihiro Takei ,  Yoshiyuki Hattori ,  Haruhiko Uno ,  Yuzo Imoto

IPC分类号： B60T8/175 ,  B60T8/1766 ,  B60T8/26

CPC分类号： B60T8/246 ,  B60T8/175 ,  B60T8/1766 ,  B60T8/268 ,  B60T2270/203 ,  Y10S303/04

摘要： A brake control system for effectively properly performing a braking hydraulic pressure distribution between a front wheel and a rear wheel or a left wheel and a right wheel of a motor vehicle including a master cylinder for generating a hydraulic pressure in response to depression of a brake pedal thereof and applying the hydraulic pressure through first and second braking passages to first and second wheel braking cylinders. This brake control system has first and second pressure control devices respectively coupled to a braking pressure source for allowing the output hydraulic pressures to be regulated independently of each other under control of a control unit. The output of the first pressure control device is coupled through the first braking passage to the first wheel braking cylinder and the output of the second pressure control device is coupled through the second braking passage to the second wheel braking cylinder. The control unit determines first and second target braking pressures to the first and second wheel braking cylinders on the basis of the hydraulic pressure in the master cylinder. The determined first and second target braking pressures are respectively corrected on the basis of the vehicle acceleration and wheel slip ratios.

摘要翻译： 一种制动控制系统，用于有效地正确地执行机动车辆的前轮与后轮或后轮或左轮和右轮之间的制动液压分布，所述制动液压分配包括用于响应于制动踏板的下压产生液压的主缸 并且通过第一和第二制动通道将液压施加到第一和第二轮制动缸。 该制动控制系统具有分别联接到制动压力源的第一和第二压力控制装置，用于允许在控制单元的控制下彼此独立地调节输出液压。 第一压力控制装置的输出通过第一制动通道联接到第一车轮制动缸，并且第二压力控制装置的输出通过第二制动通道联接到第二车轮制动缸。 控制单元基于主缸中的液压确定第一和第二车轮制动缸的第一和第二目标制动压力。 基于车辆加速度和车轮滑移率，分别校正所确定的第一和第二目标制动压力。

公开(公告)号：US4755008A

公开(公告)日：1988-07-05

申请号：US943771

申请日：1986-12-19

申请人： Yuzo Imoto ,  Haruhiko Uno ,  Toshihiro Takei ,  Hideo Wakata ,  Yoshiyuki Hattori

发明人： Yuzo Imoto ,  Haruhiko Uno ,  Toshihiro Takei ,  Hideo Wakata ,  Yoshiyuki Hattori

IPC分类号： B60T8/34 ,  B60T8/36 ,  B60T8/40 ,  B60T8/44 ,  B60T8/48 ,  B60T8/04

CPC分类号： B60T8/367 ,  B60T8/341 ,  B60T8/4072 ,  B60T8/445 ,  B60T8/4845 ,  Y10S303/04

摘要： A braking system having a pressure modulator which, during normal braking operation, delivers a fluid pressure which is a predetermined multiple of a fluid pressure generated by the master cylinder to a wheel cylinder. The pressure modulator has a solenoid actuator which is energized during braking force proportioning and anti-skid operations to reduce the delivery pressure. In a preferred embodiment, the pressure modulator further includes another solenoid actuator for increasing the delivery pressure during braking force proportioning operation and for delivering fluid pressure during traction control operation.

摘要翻译： 一种具有压力调节器的制动系统，其在正常制动操作期间将由主缸产生的流体压力的预定倍数的流体压力输送到轮缸。 压力调节器具有螺线管致动器，其在制动力配比和防滑操作期间被激励以减小输送压力。 在优选实施例中，压力调节器还包括用于增加制动力配比操作期间的输送压力和用于在牵引力控制操作期间输送流体压力的另一螺线管致动器。

公开(公告)号：US4793780A

公开(公告)日：1988-12-27

申请号：US32026

申请日：1987-03-30

申请人： Nobuaki Ishihara ,  Toshihiro Takei ,  Yoshiyuki Hattori ,  Koji Okazaki

发明人： Nobuaki Ishihara ,  Toshihiro Takei ,  Yoshiyuki Hattori ,  Koji Okazaki

IPC分类号： F01C1/356 ,  F01C21/18 ,  F04C18/356 ,  F01C21/00

CPC分类号： F01C21/18 ,  F01C1/3564

摘要： A rotary piston vacuum pump has a rotor eccentrically disposed in a cylinder and mounted therein for revolution in rolling contact with the cylindrical inner peripheral surface of the cylinder so that a crescent-shaped space is defined between the rotor and the cylinder and moved around the axis of the cylinder. A vane is radially reciprocally mounted in a vane chamber having an inner end open to the cylindrical inner peripheral surface of the cylinder. The vane has an inner end in sliding contact with the outer peripheral surface of the rotor to divide the crescent-shaped space into a suction chamber in communication with a suction port and a discharge port to be communicated with a discharge port having an inner end open in a wall of an outer part of the vane chamber. The rate of communication between the discharge port and the discharge chamber through the outer vane chamber part is varied by the reciprocal movement of the vane so that the communication is interrupted at least when the point of contact between the rotor and the cylinder inner peripheral surface reaches the vane.

摘要翻译： 旋转活塞式真空泵具有偏心地设置在气缸中并且安装在其中的转子，用于与圆柱体的圆柱形内圆周表面滚动接触，使得在转子和气缸之间限定新月形空间并围绕轴线移动 的气缸。 叶片径向往复安装在叶片室中，该叶片室的内端开口于圆柱体的圆柱形内圆周表面。 叶片具有与转子的外周面滑动接触的内端，以将新月形空间分隔成与吸入口和排出口连通的吸入室，以与具有内端开口的排出口连通 在叶片室的外部部分的壁中。 通过外叶片室部分的排出口和排出室之间的连通速率由于叶片的往复运动而变化，使得至少当转子和气缸内周面的接触点到达时，连通被中断 叶片。