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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：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：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.发明申请公开(公告)号：US20120273294A1
公开(公告)日：2012-11-01
申请号：US13456572
申请日：2012-04-26
摘要： A power steering system having a housing having first and second housing sections, a steering shaft rotatably housed in the housing, a sensor coil, a coil bobbin having a coil holding part and a flange part and housed in the first housing section, a first held section provided at the flange part, a sensor board housed in the housing, a second held section provided at the sensor board, first and second riveting portions provided at the first housing section, and an electric motor. The first riveting portion fixes the coil bobbin to the first housing section by melting and deforming the first riveting portion with the first held section touching the first riveting portion. The second riveting portion fixes the sensor board to the first housing section by melting and deforming the second riveting portion with the second held section touching the second riveting portion.
摘要翻译： 一种具有壳体的动力转向系统，具有第一和第二壳体部分，可转动地容纳在壳体中的转向轴，传感器线圈，具有线圈保持部分和凸缘部分并且容纳在第一壳体部分中的线圈架， 设置在所述凸缘部分的传感器板，容纳在所述壳体中的传感器板，设置在所述传感器板上的第二保持部，设置在所述第一壳体部的第一铆接部和第二铆接部，以及电动马达。 第一铆接部分通过使第一铆接部分与第一铆接部分接触的第一保持部分熔化和变形来将线圈架固定到第一壳体部分。 第二铆接部分通过使第二铆接部分熔化和变形而将传感器板固定到第一壳体部分，第二保持部分接触第二铆接部分。
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公开(公告)号：US07036624B2
公开(公告)日：2006-05-02
申请号：US10784210
申请日：2004-02-24
IPC分类号： B62D5/06
CPC分类号： B62D5/22 , F15B15/1438
摘要： A power steering system includes a first R-shaped portion formed with a cylindrical wall and curvedly extending from an outer-periphery general face of the cylindrical wall to the outer periphery of a butt wall, and a second R-shaped portion formed with the cylindrical wall and arranged between the butt wall and the first R-shaped portion, wherein the second R-shaped portion is smaller in radius of curvature than the first R-shaped portion.
摘要翻译： 动力转向系统包括形成有圆柱形壁的第一R形部分，并且从圆柱形壁的外周一般面向着对接壁的外周弯曲延伸，第二R形部分形成有圆柱形 并且布置在对接壁和第一R形部分之间，其中第二R形部分的曲率半径比第一R形部分小。
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公开(公告)号：US07469912B2
公开(公告)日：2008-12-30
申请号：US10976791
申请日：2004-11-01
IPC分类号： B62D3/12
CPC分类号： F16F1/3835
摘要： A bracket for connecting a steering rack housing to a vehicle body comprises a cylindrical inner member that is secured to one of the steering rack housing and the vehicle body; an outer member having a cylindrical bore in which the cylindrical member is disposed leaving a cylindrical space therebetween, the outer member being secured to the other one of the steering rack housing and the vehicle body; a first cylindrical elastic member received in the cylindrical space while being compressed between the inner and outer members; and a second elastic member put on at least one of axial ends of the outer member. The first and second elastic members are produced through different production processes.
摘要翻译： 用于将转向架壳体连接到车体的支架包括：固定到转向架壳体和车身之一的圆筒形内部构件; 具有圆柱形孔的外部构件，其中设置有圆柱形构件，留下圆柱形空间，外部构件固定到转向架壳体和车身中的另一个; 第一圆柱形弹性构件，被容纳在圆柱形空间中，同时在内部构件和外部构件之间被压缩; 并且第二弹性构件放置在外部构件的轴向端部中的至少一个上。 第一和第二弹性构件通过不同的制造工艺制造。
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公开(公告)号：US6105711A
公开(公告)日：2000-08-22
申请号：US172771
申请日：1998-10-15
摘要： In a power steering system of this invention, a control valve is provided for supplying working fluid to a power cylinder by an amount proportional to a steering effort supplied to an input shaft and obstructing supply of working fluid to the power cylinder when a steering wheel is in a neutral position. A conversion mechanism which includes an operation rod (operating device) capable of operating the control valve is provided for converting the steering effort supplied to the input shaft to displacement of the operation rod. A directional control valve is provided which is disposed between the control valve and the power cylinder for switching supply of working fluid from one of cylinder chambers of the power cylinder to the other according to the direction of the steering effort on the input shaft while controlling discharge of working fluid from the cylinder chambers.
摘要翻译： 在本发明的动力转向系统中，提供了一种控制阀，用于向动力缸提供与向输入轴提供的转向力成比例的量，并且当方向盘为 处于中立位置。 提供一种包括能够操作控制阀的操作杆（操作装置）的转换机构，用于将供给到输入轴的转向力转换成操作杆的位移。 提供方向控制阀，其设置在控制阀和动力缸之间，用于根据输入轴上的转向力的方向切换工作流体从动力缸的一个缸室到另一缸的供油，同时控制排放 来自气缸室的工作流体。
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10.发明授权公开(公告)号：US08579071B2
公开(公告)日：2013-11-12
申请号：US13456572
申请日：2012-04-26
IPC分类号： B62D5/04
摘要： A power steering system having a housing having first and second housing sections, a steering shaft rotatably housed in the housing, a sensor coil, a coil bobbin having a coil holding part and a flange part and housed in the first housing section, a first held section provided at the flange part, a sensor board housed in the housing, a second held section provided at the sensor board, first and second riveting portions provided at the first housing section, and an electric motor. The first riveting portion fixes the coil bobbin to the first housing section by melting and deforming the first riveting portion with the first held section touching the first riveting portion. The second riveting portion fixes the sensor board to the first housing section by melting and deforming the second riveting portion with the second held section touching the second riveting portion.
摘要翻译： 一种具有壳体的动力转向系统，具有第一和第二壳体部分，可转动地容纳在壳体中的转向轴，传感器线圈，具有线圈保持部分和凸缘部分并且容纳在第一壳体部分中的线圈架， 设置在所述凸缘部分的传感器板，容纳在所述壳体中的传感器板，设置在所述传感器板上的第二保持部，设置在所述第一壳体部的第一铆接部和第二铆接部，以及电动马达。 第一铆接部分通过使第一铆接部分与第一铆接部分接触的第一保持部分熔化和变形来将线圈架固定到第一壳体部分。 第二铆接部分通过使第二铆接部分熔化和变形而将传感器板固定到第一壳体部分，第二保持部分接触第二铆接部分。
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