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    • 1. 发明授权
    • Vehicular drive control system
    • 车载驱动控制系统
    • US4796957A
    • 1989-01-10
    • US799166
    • 1985-11-18
    • Hideo WakataYuzo ImotoToshihiro TakeiYoshiyuki Hattori
    • Hideo WakataYuzo ImotoToshihiro TakeiYoshiyuki Hattori
    • B60T8/175B60T8/48B60T13/00
    • B60T8/4836B60T8/175B60T8/48B60T8/4827B60T2270/203
    • 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.
    • 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。
    • 4. 发明授权
    • Brake control system for controlling a braking force to each wheel of a
motor vehicle
    • 用于控制机动车辆每个车轮的制动力的制动控制系统
    • US4836618A
    • 1989-06-06
    • US69515
    • 1987-07-02
    • Hideo WakataToshihiro TakeiYoshiyuki HattoriHaruhiko UnoYuzo Imoto
    • Hideo WakataToshihiro TakeiYoshiyuki HattoriHaruhiko UnoYuzo Imoto
    • B60T8/175B60T8/1766B60T8/26
    • B60T8/246B60T8/175B60T8/1766B60T8/268B60T2270/203Y10S303/04
    • 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.
    • 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。
    • 6. 发明授权
    • Apparatus for feeding high-pressure fuel into engine cylinder for
injection control
    • 用于将高压燃料供给到用于喷射控制的发动机气缸中的装置
    • US4735185A
    • 1988-04-05
    • US873597
    • 1986-06-11
    • Yuzo ImotoHideo WakataKiyonori Sekiguchi
    • Yuzo ImotoHideo WakataKiyonori Sekiguchi
    • F02B3/00F02B3/06F02D1/02F02D41/00F02D41/40F02M49/02F02M51/04F02B15/00
    • F02B3/00F02M49/02F02M51/04F02B3/06
    • A fuel injection control apparatus includes a booster apparatus, in which a cylinder chamber is divided into first and second fluid chambers by a piston. The operative area of the piston facing the first fluid chamber is sufficiently greater than that facing the second fluid chamber. Pressurized fuel is supplied to the first fluid chamber through a first check valve. The fluid is delivered from a second fluid chamber to a fuel injection valve via a second check valve. A fluid passage is formed between the first and second fluid chambers. A third check valve is set in the fluid passage, whereby the fuel is allowed to flow only from the first fluid chamber toward the second fluid chamber. The booster piston is located by means of a first piezoelectric device which includes a plurality of piezoelectric elements stacked in layers. When high voltage is applied to the first piezoelectric device to extend it, the piston is moved toward the first fluid chamber. High-voltage power from a second piezoelectric device, which faces the inside of an engine cylinder, is supplied to the first piezoelectric device via a backflow-preventing element. The first piezoelectric device is controlled for discharge in response to the injecting timing.
    • 燃料喷射控制装置包括升压装置,其中气缸室通过活塞分成第一和第二流体室。 面向第一流体室的活塞的操作面积足够大于面向第二流体室的操作区域。 加压燃料通过第一止回阀供应到第一流体室。 流体通过第二止回阀从第二流体室输送到燃料喷射阀。 在第一和第二流体室之间形成流体通道。 第三止回阀设置在流体通道中,从而允许燃料仅从第一流体室流向第二流体室。 增压活塞通过第一压电装置定位,该第一压电装置包括层叠的多个压电元件。 当向第一压电装置施加高电压以使其延伸时,活塞向第一流体室移动。 面向发动机气缸内部的来自第二压电装置的高压电力通过防回流元件被供给到第一压电装置。 第一压电装置被控制为响应于喷射正时的放电。
    • 7. 发明授权
    • Motor drive control with low current limitation value
    • 低电流限制值的电机驱动控制
    • US06291955B1
    • 2001-09-18
    • US09523288
    • 2000-03-10
    • Toru ItabashiHideo Wakata
    • Toru ItabashiHideo Wakata
    • F02D4122
    • H02P7/04
    • A microcomputer receives a position detection signal from a throttle angle sensor, and produces drive command signals to a drive circuit to control the position of a throttle valve to a target position through a motor. The current supplied to the motor is limited to less than a maximum value in a current variation zone in a normal motor operation range, when the throttle valve cannot be controlled to the target position, that is, when it is locked to the same position. The microcomputer produces a signal to cancel the current limitation to the motor, when it detects from the position detection signal of the throttle angle sensor that the throttle valve undergoes a predetermined change under the current limitation condition.
    • 微型计算机接收来自节气门角传感器的位置检测信号,并向驱动电路产生驱动指令信号,以通过电动机将节流阀的位置控制到目标位置。 当节气门不能被控制到目标位置时,也就是当其被锁定在同一位置时,提供给电动机的电流被限制在小于正常电动机运行范围内的电流变化区中的最大值。 当微型计算机根据节气门角传感器的位置检测信号检测到节流阀在当前限制条件下经历预定的变化时,产生消除对电动机的电流限制的信号。
    • 8. 发明授权
    • Brake control system and restriction adjusting valve for vehicles
    • 车辆制动控制系统和限位调节阀
    • US5393132A
    • 1995-02-28
    • US62166
    • 1993-05-17
    • Kazutoshi YogoMasuhiro KondoHideo Wakata
    • Kazutoshi YogoMasuhiro KondoHideo Wakata
    • B60T8/34B60T8/1761B60T8/36B60T8/42B60T8/50B60T13/68F16K31/06
    • B60T8/367B60T13/686B60T8/4275B60T8/50
    • A brake control system for a motor vehicle which is equipped with a running state detector for detecting a running state of the motor vehicle so as to adjust a braking pressure in a wheel-braking cylinder of the motor vehicle in accordance with the detected vehicle running state. The brake control system has a first restriction adjusting valve provided between a hydraulic pressure generating source and the wheel-braking cylinder for adjusting the braking pressure to be supplied from the hydraulic pressure generating source to the wheel-braking cylinder, and a second restriction adjusting valve provided between the wheel-braking cylinder and a reservoir for adjusting a braking liquid to be discharged from the wheel-braking cylinder to the reservoir. Also included in the system is a control unit for outputting control signals to the first and second restriction adjusting valves so as to control the braking pressure in the wheel-braking cylinder in accordance with the detected vehicle running state. This arrangement allows setting of the braking hydraulic pressure increasing and decreasing speeds so as to permit a smooth brake control operation.
    • 一种用于机动车辆的制动控制系统,其配备有运行状态检测器,用于检测机动车辆的行驶状态,以便根据检测到的车辆行驶状态来调节机动车辆的车轮制动缸中的制动压力 。 制动控制系统具有设置在液压发生源和车轮制动缸之间的第一限制调节阀,用于调节从液压发生源向车轮制动缸供给的制动压力,以及第二限制调节阀 设置在车轮制动缸和用于调节从车轮制动缸向贮存器排出的制动液体的贮存器之间。 还包括在系统中的控制单元,用于根据检测到的车辆行驶状态向第一和第二限制调节阀输出控制信号,以控制车轮制动缸中的制动压力。 这种布置允许制动液压压力的增加和减小的速度设定,从而允许平稳的制动控制操作。
    • 9. 发明授权
    • Pressure control valve for continuous pressure control to wheel cylinder
    • 压力控制阀用于连续压力控制到轮缸
    • US5248191A
    • 1993-09-28
    • US995936
    • 1992-12-23
    • Masuhiro KondoKazutoshi YogoHideo WakataTakahiro GoshimaMasahiko Kamiya
    • Masuhiro KondoKazutoshi YogoHideo WakataTakahiro GoshimaMasahiko Kamiya
    • B60T8/172B60T8/36B60T8/42B60T8/44
    • B60T8/3665B60T8/172B60T8/36B60T8/364B60T8/4275B60T8/445Y10T137/86622
    • A pressure control valve for use in an automobile braking system includes a spool slidably movable for providing selective fluid communication between a pressure fluid source, a wheel cylinder, and a reservoir. The spool has, or is associated with, a pressure-bearing member responsive to a fluid pressure from the wheel cylinder, for applying a first biasing force to the slidable member to urge the slidable member to a position in which the wheel cylinder and the reservoir communicates with each other. An electromagnetic coil responds to an electric signal for generating an electromagnetic force to urge the slidable member to the above position. The slidable member is normally biased by a spring under a second biasing force, greater than the first biasing force, to urge the slidable member to a position in which the pressure fluid source and the wheel cylinder communicate with each other. The fluid pressure in the wheel cylinder is regulated to cause the sum of the fluid pressure in the wheel cylinder and the electromagnetic force from the electromagnetic coil to counterbalance the second biasing force.
    • 一种用于汽车制动系统的压力控制阀包括可滑动地运动的阀芯,用于在压力流体源,轮缸和储存器之间提供选择性的流体连通。 卷轴具有或与其相关联的压力承载部件,其响应于来自轮缸的流体压力,用于向可滑动构件施加第一偏压力,以将可滑动构件推动到轮缸和容器 相互沟通。 电磁线圈响应电信号以产生电磁力以将可滑动构件推动到上述位置。 滑动构件通常由弹簧以大于第一偏压力的第二偏压力偏压,以将可滑动构件推动到压力流体源和轮缸彼此连通的位置。 调节轮缸中的流体压力,使轮缸中的流体压力和来自电磁线圈的电磁力之和平衡第二偏压力。
    • 10. 发明授权
    • Anti-lock brake control system for use in motor vehicle
    • 用于汽车的防抱死制动控制系统
    • US4986611A
    • 1991-01-22
    • US483214
    • 1990-02-20
    • Takahiro GoshimaKazutoshi YogoHideo WakataMasashi Kishimoto
    • Takahiro GoshimaKazutoshi YogoHideo WakataMasashi Kishimoto
    • B60T8/1763B60T8/26B60T8/34B60T8/42
    • B60T8/17636B60T8/26B60T8/348B60T8/4275
    • An anti-locking control system for use in a motor vehicle having four wheels, comprising a hydraulic pressure supply system for applying a braking pressure from a master cylinder to two pairs of wheel-braking cylinders for braking the pair of wheels and a pump provided in common for the two pairs of cylinders in the hydraulic pressure supply system to decrease both the braking hydraulic pressures in each pair of wheel-braking cylinders. The hydraulic pressure supply system includes a pair of control valves each of which is arranged to have a first position at which the master cylinder is communicated with each of the pair of wheel-braking cylinders and a suction side of the pump is disconnected to the wheel-braking cylinder and a second position for disconnection to the wheel-braking cylinder and communication with the cylinder. Also provided in the control system an electronic control unit for effecting duty control of the pair of control valves so that the time periods at which the pair of control valves are at the second positions are not overlapped with each other. With this arrangement, although the pressure-decreasing is effected by one pump provided in common for the respective wheel-braking cylinders, it is possible to adequately effect the pressure-decreasing with respect to the lower-pressure side wheel-braking cylinder.
    • 一种用于具有四个车轮的机动车辆的防抱死控制系统,包括用于将来自主缸的制动压力施加到用于制动所述一对车轮的两对车轮制动缸的液压供应系统和设置在其中的泵 对于液压供应系统中的两对气缸是共同的,以减小每对车轮制动缸中的制动液压。 液压供给系统包括一对控制阀,每个控制阀被布置成具有第一位置,主缸与所述一对车轮制动缸中的每一个连通,并且泵的吸入侧与轮分离 - 制动缸和用于断开到车轮制动缸的第二位置并与气缸连通。 还在控制系统中设置一个电子控制单元,用于实现一对控制阀的占空比控制,使得一对控制阀处于第二位置的时间段彼此不重叠。 利用这种结构,尽管通过为相应的车轮制动缸共同设置的一个泵实现减压,但是可以适当地实现相对于低压侧车轮制动缸的减压。