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公开(公告)号：US5950757A
公开(公告)日：1999-09-14
申请号：US974155
申请日：1997-11-19
CPC分类号： B62D5/065 , F04B49/10 , F04B2205/06 , F04B2205/13
摘要： A power steering device includes a hydraulic pump for discharging working fluid, an actuator for producing a steering assisting force by means of working fluid, a hydraulic passage for connecting the hydraulic pump and the actuator, a check valve arranged to the hydraulic passage to allow flow of working fluid from the hydraulic pump to the actuator and preventing flow thereof in the opposite direction, an accumulator connected to the hydraulic passage downstream of the check valve, a pressure switch for detecting a pressure within the hydraulic passage downstream of the check valve, a control unit for controlling the hydraulic pump in response to the pressure switch, and a display for showing an anomaly of the power steering device. When determining the anomaly of the power steering device, the control unit stops the hydraulic pump and/or makes the display show the anomaly.
摘要翻译： 动力转向装置包括用于排放工作流体的液压泵，用于通过工作流体产生转向辅助力的致动器，用于连接液压泵和致动器的液压通道，设置在液压通道上以允许流动的止回阀 工作流体从液压泵到致动器并防止其沿相反方向的流动;连接到止回阀下游的液压通道的蓄能器;用于检测止回阀下游的液压通道内的压力的压力开关; 用于响应于压力开关控制液压泵的控制单元和用于示出动力转向装置的异常的显示器。 当确定动力转向装置的异常时，控制单元停止液压泵和/或使显示器显示异常。
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公开(公告)号：US5921342A
公开(公告)日：1999-07-13
申请号：US784307
申请日：1997-01-16
CPC分类号： F04C14/06 , B62D5/065 , F04B49/022
摘要： A power assisted steering apparatus for a vehicle having a driving source, such as an engine, has an actuator, a hydraulic pump, a working oil pressure passage, and a drive switch. The actuator, which is in the vehicle steering mechanism, receives a supply or exhaust of a working oil to assist the steering operation. The pump is selectively driven by an engine via a clutch mechanism. The working oil discharged from the pump is introduced into the actuator via the passage. The check valve is interposed within the passage to enable flow in one direction away from the pump. The drive switch structure is disposed within the passage, downstream from the check valve. With this arrangement, the drive switch structure can be activated by pressure in the passage downstream of the check valve to control the clutch mechanism.
摘要翻译： 用于具有诸如发动机的驱动源的车辆的动力辅助转向装置具有致动器，液压泵，工作油压力通道和驱动开关。 在车辆转向机构中的致动器接收工作油的供给或排出以辅助转向操作。 泵通过离合器机构由发动机选择性地驱动。 从泵排出的工作油通过通道被引入致动器。 止回阀插入在通道内，以使得能够在远离泵的一个方向上流动。 驱动开关结构设置在通道内，止回阀的下游。 通过这种布置，驱动开关结构可以通过在止回阀下游的通道中的压力来启动，从而控制离合器机构。
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公开(公告)号：US5975232A
公开(公告)日：1999-11-02
申请号：US779906
申请日：1997-01-07
CPC分类号： B62D5/065
摘要： A power assisted steering apparatus for a vehicle has a driving source and an actuator for the vehicle's steering mechanism, to power assist the steering operation. The driving source, such as an engine, continuously drives a pump. A working passage is arranged so that working oil discharged from the pump is introduced into the actuator. A check valve is disposed in the working passage, between the actuator and the pump so that the working oil flows only one way to the actuator. An accumulator is connected to the working passage, between the check valve and the actuator to maintain a predetermined pressure in the working passage. A regulator is connected to the working passage, between the pump and the check valve to regulate flow to the actuator. When the pressure within the working passage reaches the predetermined pressure, the working fluid is dumped to a reservoir, bypassing the check valve, the accumulator, and the actuator.
摘要翻译： 用于车辆的助力转向装置具有用于车辆转向机构的驱动源和致动器，用于辅助转向操作。 诸如发动机的驱动源连续驱动泵。 工作通道被布置成使得从泵排出的工作油被引入致动器。 止回阀设置在工作通道中，在致动器和泵之间，使得工作油仅仅一条流动到致动器。 蓄能器连接到工作通道，在止回阀和致动器之间，以保持工作通道中的预定压力。 调节器连接到工作通道，在泵和止回阀之间，以调节流向致动器的流量。 当工作通道内的压力达到预定的压力时，工作流体被转移到储存器，旁通止回阀，蓄能器和致动器。
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公开(公告)号：US6041883A
公开(公告)日：2000-03-28
申请号：US814488
申请日：1997-03-10
摘要： A power steering system includes a fluid pump, a steering gear, a high-pressure passage connecting the fluid pump to the steering gear, and a flow control valve having a first chamber forming a part of the high-pressure passage. A metering orifice is disposed in the high-pressure passage between the first chamber and the steering gear. A feedback passage distributes feedback pressure developed in the high-pressure passage downstream of the metering orifice to a second chamber of the flow control valve. An exhaust port communicates with the first chamber. A movable valve spool is disposed in a valve bore and has one end exposed to the first chamber and opposite end exposed to the second chamber. A valve spring is disposed in the second chamber together with a slide coupled with an external actuator. One end of the valve spring is seated on the opposite end of the valve spool and opposite end thereof is seated on the slide. The actuator is responsive to a control signal to position the slide thereby varying force with which the valve spring urges the valve spool. A control unit develops the control signal in response to turning maneuvers.
摘要翻译： 动力转向系统包括流体泵，舵机，将流体泵连接到舵机的高压通道以及具有形成高压通道的一部分的第一室的流量控制阀。 计量孔设置在第一室和舵机之间的高压通道中。 反馈通道将在计量孔口下游的高压通道中产生的反馈压力分配到流量控制阀的第二室。 排气口与第一室连通。 可动阀芯设置在阀孔中，并且具有暴露于第一腔室的一端和暴露于第二腔室的相对端。 阀弹簧与与外部致动器联接的滑块一起设置在第二室中。 阀弹簧的一端位于阀芯的相对端上，其相对端位于滑块上。 致动器响应于控制信号来定位滑块，从而改变阀弹簧推动阀芯的力。 控制单元响应于转动操纵而开发控制信号。
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公开(公告)号：US6035958A
公开(公告)日：2000-03-14
申请号：US800176
申请日：1997-02-13
摘要： A steering power assist apparatus is comprised of a power cylinder whose operation is controlled by the a flow rate control valve, a first control valve and a second control valve. The flow rate control valve is connected to a discharge side of a hydraulic pump and controls the amount of the hydraulic oil to be supplied to the first and second control valves according to a load pressure. The first control valve constituted by choke valves is disposed downstream of the flow rate control valve and controls the amount of the hydraulic oil supplied to the second control valve according to a steering torque. The second control valve constituted by choke valves is disposed downstream of the flow rate control valve and controls the amount of the hydraulic oil to the power cylinder according to a steering torque. The choke valves of the second control valve are fully closed after the choke valves of the first control valve are fully closed.
摘要翻译： 转向助力装置包括动力缸，其动作由流量控制阀，第一控制阀和第二控制阀控制。 流量控制阀连接到液压泵的排出侧，并根据负载压力控制供给到第一和第二控制阀的液压油的量。 由阻流阀构成的第一控制阀设置在流量控制阀的下游，并且根据转向转矩来控制供给到第二控制阀的液压油的量。 由阻流阀构成的第二控制阀设置在流量控制阀的下游，并且根据转向扭矩控制到动力缸的液压油的量。 第一个控制阀的节流阀完全关闭后，第二个控制阀的节流阀完全关闭。
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6.发明授权Normally-open solenoid valve including plunger formed with pressure receiving portion 有权常开电磁阀，包括形成有压力接收部分的柱塞公开(公告)号：US08550427B2
公开(公告)日：2013-10-08
申请号：US12879265
申请日：2010-09-10
申请人： Keigo Yoshida , Norihiro Saita , Satoshi Doi , Tadaharu Yokota
发明人： Keigo Yoshida , Norihiro Saita , Satoshi Doi , Tadaharu Yokota
IPC分类号： F16K31/06
CPC分类号： F16K31/0665 , B60T8/363
摘要： A solenoid valve includes a solenoid coil, a yoke of magnetic material, an armature of magnetic material to move in an axial direction of the solenoid coil when the solenoid coil is energized, a plunger to be moved with the armature, a valve seat member including a seat portion formed with a valve hole to be closed and opened by a forward end portion of the plunger, and a coil spring which is disposed between a spring receiving portion of the plunger and the valve seat member, around the plunger. The plunger includes a pressure receiving portion (such as a flat portion) which extends in a radial direction of the plunger at a position between the forward end portion and the spring receiving portion of the plunger, and which faces to the seat portion.
摘要翻译： 电磁阀包括螺线管线圈，磁性材料磁轭，当螺线管线圈通电时磁性材料在电磁线圈的轴向方向上移动的电枢，与电枢一起移动的柱塞，阀座构件包括 形成有由所述柱塞的前端封闭并打开的阀孔的座部，以及设置在所述柱塞的弹簧容纳部和所述阀座构件之间的所述柱塞的螺旋弹簧。 柱塞包括在柱塞的前端部分和弹簧接收部分之间并面向座椅部分的位置处在柱塞的径向方向上延伸的压力接收部分（例如平坦部分）。
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公开(公告)号：US20080230337A1
公开(公告)日：2008-09-25
申请号：US12046713
申请日：2008-03-12
IPC分类号： B60T13/12
CPC分类号： B60T8/4081 , B60T1/10 , B60T7/042 , B60T8/368 , B60T13/686
摘要： A brake control apparatus including a reservoir tank, a housing, a pump within the housing, a suction port formed in the housing and communicated with a suction portion of the pump, a discharge port formed in the housing and communicating a discharge portion of the pump with wheel cylinders, a suction pipe connecting the suction port and the reservoir tank, and a reservoir chamber disposed within the housing between the suction portion of the pump and the suction port. The reservoir chamber has a volume capable of reserving at least a predetermined amount of the brake fluid which is required for one-time braking at a maximum fluid pressure.
摘要翻译： 一种制动控制装置，包括储存箱，壳体，壳体内的泵，形成在壳体中并与泵的抽吸部分连通的吸入口，形成在壳体中的排出口，并且连通泵的排出部分 具有轮缸，连接吸入口和储存箱的吸入管以及设置在泵的抽吸部分和吸入口之间的壳体内的储存室。 储存室具有能够在最大流体压力下至少预留一次制动所需的预定量的制动流体的容积。
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公开(公告)号：US08727453B2
公开(公告)日：2014-05-20
申请号：US13044853
申请日：2011-03-10
申请人： Norihiro Saita , Taichi Shibata , Masamichi Imamura , Shinichiro Nishida , Satoshi Doi , Tadaharu Yokota
发明人： Norihiro Saita , Taichi Shibata , Masamichi Imamura , Shinichiro Nishida , Satoshi Doi , Tadaharu Yokota
CPC分类号： B60T8/36 , B60T8/363 , B60T13/662 , B60T13/686
摘要： A hydraulic pressure control apparatus has an electromagnetic valve having a valve body forced to one side by an elastic member and a coil driving the valve body to the other side; a hydraulic pressure control section for calculating a command current value to drive the electromagnetic valve and controlling a hydraulic pressure in a hydraulic circuit by opening/closing the electromagnetic valve; a current detection section detecting a value of the current passing through the coil; and a command current value correction section. The command current value correction section detects a change of an inductance of the coil when the valve body moves from the one side to the other side or from the other side to the one side through the current detection section, and corrects the command current value using the detected inductance change.
摘要翻译： 液压控制装置具有电磁阀，该电磁阀具有通过弹性部件被迫向一侧的阀体和将阀体驱动到另一侧的线圈; 液压控制部，用于计算驱动电磁阀的指令电流值，并通过打开/关闭电磁阀来控制液压回路中的液压; 检测通过所述线圈的电流的值的电流检测部; 和指令电流值校正部。 指令电流值校正部检测当阀体从一侧向另一侧移动时的线圈的电感变化，或者通过电流检测部检测线圈的另一侧向一侧的电感的变化，并且使用 检测到的电感变化。
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公开(公告)号：US20110062361A1
公开(公告)日：2011-03-17
申请号：US12879265
申请日：2010-09-10
申请人： Keigo YOSHIDA , Norihiro Saita , Satoshi Doi , Tadaharu Yokota
发明人： Keigo YOSHIDA , Norihiro Saita , Satoshi Doi , Tadaharu Yokota
IPC分类号： F16K31/02
CPC分类号： F16K31/0665 , B60T8/363
摘要： A solenoid valve includes a solenoid coil to produce a magnetic field when energized, a yoke of magnetic material encasing the solenoid coil, an armature of magnetic material surrounded by the yoke, and arranged to move in an axial direction of the solenoid coil when the solenoid coil is energized, a plunger to be moved with the armature, a valve seat member including a seat portion formed with a valve hole to be closed and opened by a forward end portion of the plunger, and a coil spring which is disposed between a spring receiving portion of the plunger and the valve seat member, around the plunger, and which is arranged to urge the plunger toward a normal position. The plunger includes a pressure receiving portion (such as a flat portion) which extends in a radial direction of the plunger at a position between the forward end portion and the spring receiving portion of the plunger, and which faces to the seat portion.
摘要翻译： 电磁阀包括用于在通电时产生磁场的螺线管线圈，包围螺线管线圈的磁性材料的磁轭，由磁轭包围的磁性材料的电枢，并且被布置成当螺线管线圈 线圈通电，与电枢一起移动的柱塞;阀座构件，包括形成有阀孔的座部，该阀座由柱塞的前端部封闭并打开;以及螺旋弹簧，其设置在弹簧 所述柱塞和所述阀座构件的接收部分围绕所述柱塞，并且被布置成将所述柱塞推向正常位置。 柱塞包括在柱塞的前端部分和弹簧接收部分之间并面向座椅部分的位置处在柱塞的径向方向上延伸的压力接收部分（例如平坦部分）。
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10.发明申请公开(公告)号：US20080006469A1
公开(公告)日：2008-01-10
申请号：US10567829
申请日：2004-08-09
CPC分类号： B62D5/0481 , B62D5/065 , B62D5/30
摘要： A steering system includes a hydraulic power cylinder 5 that assists a steering force of a rack-and-pinion mechanism 4, and a first hydraulic pressure supply mechanism 8 having a first trochoid pump 23 selectively supplying hydraulic pressure to two hydraulic pressure chambers 15a and 15b of the hydraulic power cylinder via first and second fluid passages 6 and 7, and a first electric motor 24 for the first trochoid pump. When the first hydraulic pressure supply mechanism becomes failed, a second hydraulic pressure supply mechanism 11 is operated responsively to a command signal from a control unit 14 to selectively supply hydraulic pressure via third and fourth fluid passages to either one of the hydraulic pressure chambers.Thus, it is possible to positively apply a steering assist force by means of the second hydraulic pressure supply mechanism 11, thereby reducing a driver's operating force applied to a steering wheel.
摘要翻译： 转向系统包括：辅助齿条齿轮机构4的转向力的液压动力缸5和具有选择性地向两个液压室15a供给液压的第一副摆动泵23的第一液压供给机构8;以及 15b的第一和第二流体通道6和7的液压动力缸，以及用于第一次摆线泵的第一电动机24。 当第一液压供给机构发生故障时，响应于来自控制单元14的指令信号响应于第二液压供给机构11，通过第三和第四流体通路选择性地供给液压到任一个液压室。 因此，可以通过第二液压供给机构11积极地施加转向辅助力，从而降低驾驶员施加到方向盘的操作力。
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