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41.发明公开Variable-orifice, servo-solenoid valve for a variable-assist power steering system 失效用于可变助力转向系统的变速箱，伺服电磁阀
公开(公告)号：EP0454336A3
公开(公告)日：1992-03-04
申请号：EP91303338.7
申请日：1991-04-16
发明人： Duffy, James J.
CPC分类号： B62D6/02
摘要： A power steering system for a wheeled vehicle comprising a fluid motor (10) connected to dirigible wheels (20) of the vehicle, a power steering pump (22) and a steering valve structure (26,28) situated in flow delivery and flow return passages that connect the pump (22) with the fluid motor, the valve structure including a pilot-operated solenoid valve means (86) that controls the by-pass flow between the supply and return sides of the pump (22) wherein a solenoid actuator (32) is adapted to apply a vehicle speed sensitive force on a pilot valve portion (160) of the valve which develops valve actuating forces on a flow control portion (154) of the valve wherein the latter is speed conscious only and does not depend upon flow to and from the pump (22) nor upon the steering pressure for the fluid motor.
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公开(公告)号：EP0455810A1
公开(公告)日：1991-11-13
申请号：EP89912132.1
申请日：1989-11-07
发明人： MOMIYAMA, Fujio , TOKUDA, Noriaki
摘要： A power steering system used for a vehicle, in which a booster (11), a direction control valve (12) and a hydraulic pump (13) are connected to a hydraulic circuit. A pressure oil setting valve (15) enables a compensating pressure oil the pressure of which is higher than a circuit pressure to he extracted on the upstream side of the direction control valve (12). When a steering wheel (51) starts being turned, the compensating pressure oil is injected into a pair of reaction force chambers (38, 39) in the direction control valve (12) in the turning direction by presssure oil injection valves (16, 17). When the steering wheel (51) is turned back, a compensating pressure oil is injected into these two reaction force chambers (38, 39) in the turned back direction by the pressure oil injection valves (16, 17). A reaction force regulating valve (18) is provided in a reaction force regulating passage (26) which allows the two reaction force chambers (38, 39) to communicate with each other, and a throttle is regulated in accordance with a vehicle speed. This enables a response characteristics control operation improving the response characteristics with respect to a steering input to be carried out properly, and a speed sensitivity control operation varying the steering power in accordance with a vehicle speed to be carried out properly.
摘要翻译： 增压器，方向控制阀和液压泵连接到液压回路。一个压力油设置阀可以补偿压力油。当方向盘转动时，补偿压力油被注入到一对反作用力室中。 当车轮回转时，向后退方向注入补偿压力。反作用力调节阀设置在通道中，并且根据车速调节节气门。
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44.发明公开Variable-orifice, servo-solenoid valve for a variable-assist power steering system 失效Solenoidservoventil mit variablerÖffnungfürServolenksystem mit variablerUnterstützung。
公开(公告)号：EP0454336A2
公开(公告)日：1991-10-30
申请号：EP91303338.7
申请日：1991-04-16
发明人： Duffy, James J.
CPC分类号： B62D6/02
摘要： A power steering system for a wheeled vehicle comprising a fluid motor (10) connected to dirigible wheels (20) of the vehicle, a power steering pump (22) and a steering valve structure (26,28) situated in flow delivery and flow return passages that connect the pump (22) with the fluid motor, the valve structure including a pilot-operated solenoid valve means (86) that controls the by-pass flow between the supply and return sides of the pump (22) wherein a solenoid actuator (32) is adapted to apply a vehicle speed sensitive force on a pilot valve portion (160) of the valve which develops valve actuating forces on a flow control portion (154) of the valve wherein the latter is speed conscious only and does not depend upon flow to and from the pump (22) nor upon the steering pressure for the fluid motor.
摘要翻译： 一种用于轮式车辆的动力转向系统，包括连接到车辆的可拆卸车轮（20）的流体马达（10），动力转向泵（22）和位于流量输送和回流中的转向阀结构（26,28） 将泵（22）与流体马达连接的通道，该阀结构包括一个先导操作的电磁阀装置（86），其控制泵（22）的供应侧和返回侧之间的旁路流动，其中螺线管致动器 （32）适于在所述阀的先导阀部分（160）上施加车辆速度敏感力，其在所述阀的流量控制部分（154）上产生阀致动力，其中所述阀的驱动力仅仅是速度意识的并且不依赖 在流入和流出泵（22）时，也不依赖于流体马达的转向压力。
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45.发明公开Hydraulic power steering device responsive to speed of vehicle 失效HydraulischehilfskraftverstärkteLenkeinrichtung，ansprechend auf die Fahrzeuggeschwindigkeit。
公开(公告)号：EP0453919A1
公开(公告)日：1991-10-30
申请号：EP91105988.9
申请日：1991-04-15
申请人： KOYO SEIKO CO., LTD.
发明人： Nomura, Keiji , Nishimura, Katsutoshi , Okamoto, Kazunori , Horiuchi, Tomoharu , Watanabe, Masayuki , Nakao, Hirohisa , Noguchi, Masahiko
IPC分类号： B62D6/02
CPC分类号： B62D6/02
摘要： A hydraulic power steering device responsive to the speed of a vehicle and comprising a housing (30), an output shaft (31) disposed in the housing, an input shaft (33) disposed in the housing and coaxial with the output shaft, a torsion bar (34) provided between the output shaft and the input shaft, a control valve provided around the input shaft for controlling the amount of pressure oil to be supplied from a hydraulic pump to a power cylinder in accordance with the torsion of the torsion bar, and plungers (1) each slidably fitted in a hole (32) formed in the output shaft, each of the plungers being adapted to be pressed at its forward end against the input shaft by oil pressure in accordance with the vehicle speed to obtain a reaction. At least one of the portion of the plunger (1) slidable in contact with the inner peripheral surface of the output shaft defining the hole (32) and the portion of the plunger to be pressed into contact with the input shaft (33) is made of a synthetic resin.
摘要翻译： 一种响应于车辆速度的液压动力转向装置，包括壳体（30），设置在壳体中的输出轴（31），设置在壳体中并与输出轴同轴的输入轴（33） 设置在输出轴和输入轴之间的杆（34），设置在输入轴周围的控制阀，用于根据扭杆的扭转来控制从液压泵供应到动力缸的压力油的量， 和柱塞（1），每个活塞可滑动地装配在形成在输出轴上的孔（32）中，每个柱塞适于根据车速通过油压将其前端压靠输入轴，以获得反应 。 制成可与限定孔（32）的输出轴的内周面和被压入与输入轴（33）接触的柱塞的部分滑动的柱塞（1）的部分中的至少一个被制成 的合成树脂。
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公开(公告)号：EP0430417A3
公开(公告)日：1991-10-30
申请号：EP90311273.8
申请日：1990-10-15
摘要： A power assisted vehicle steering system of the speed responsive kind has a ram 6 fluid flow to chambers 4 and 5 of which from a pump 9 is directed by an open centre steering valve 1. Communication between the chambers 4 and 5 is permissible through a by-pass valve 13 adjustable by a solenoid 17 in response to vehicle speed to open such communication as speed increases (and thereby decrease power assistance) and vice versa. The valve 13 has a spool 22 which is spring loaded relative to a control spindle 18 of the solenoid. Adjustment of the spool 22 in response to speed variations opens or closes by-pass ports 14 and 15 to opposite ends of a restrictor 32 which provides such fluid flow communication. A spring loaded spool 41 in the valve 13 is responsive through chambers 39 and 40 to fluid pressure at opposite sides of the restrictor 32. When the fluid pressure differential across the restrictor 32 exceeds a predetermined differential, the spool 41 is displaced to direct fluid pressure to spool chamber 55. This displaces the spool 22 against its spring biasing 27 and relative to the rod 18 thereby closing the ports 14 and 15 (and communication between the ram chambers) so that increased power assistance becomes available irrespective of the vehicle being at high speed.
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公开(公告)号：EP0203383B1
公开(公告)日：1991-05-29
申请号：EP86105727.1
申请日：1986-04-25
申请人： TRW INC.
发明人： Cage, Jerry L. , Kulp, Jonathan B.
CPC分类号： B62D6/02
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公开(公告)号：EP0350423A3
公开(公告)日：1990-03-07
申请号：EP89500075.0
申请日：1989-07-03
摘要： An improved assisted steering mechanism is described which permits an additional preload to be introduced, in a reduced space and at low cost, on the spring that centers the distributor valve, subsequent to centering that distributor valve. The mechanism that is described also permits the said additional preload to be modified depending on the vehicle speed. This mechanism is made up of two components (1) and (2) which turn on the same shaft E and which are in a relative fixed position on the steering of shaft E. The relative gyration of the two components (1) and (2) determines the opening of the distributor valve. Component (1) has axial enlargements which are inserted in notches pertaining to a spring-washer (6′) which turns solidarily with component (2). The relative gyration of the components (1) and (2) forces the preload of the washer (6′) to be overcome. Force "F" is applied on the washer by joint (16) caused by pressure in chamber A, depending on the vehicle speed. The preload can thus be varied in terms of the speed.
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49.发明公开Electromagnetic control apparatus for varying the driver steering effort of a hydraulic power steering apparatus 失效用于改变由液压动力转向的驾驶员施加的转向力电磁控制装置。
公开(公告)号：EP0349116A2
公开(公告)日：1990-01-03
申请号：EP89305169.8
申请日：1989-05-23
CPC分类号： B62D6/02
摘要： A hydraulic power steering apparatus having conventional relatively rotatable valve spool (54) and valve body (64) elements for flow regulation, and an integral electromagnetic mechanism (92) which effectively varies the centring force between the valve spool and valve body to adjust the level of steering assist provided for a given operator steering input. The electromagnetic mechanism includes a rotary magnetic circuit (100) and a stationary magnetic circuit (102). The rotary magnetic circuit comprises a pair of axially displaced magnetic pole pieces (106,108) which rotate with the pinion shaft (28) and a permanent magnet disk element (104) which is disposed between the pole pieces and which rotates with the input shaft (18). The stationary magnetic circuit includes an annular exciting coil (130) disposed about the rotary magnetic circuit and ferromagnetic pole elements (134-139) adjacent each of the rotary pole pieces. The exciting coil is energized so as to vary the valve body/valve spool centring force, and hence the driver steering effort, with vehicle speed.
摘要翻译： 具有常规的相对可旋转的基座滑阀（54）和阀体（64）的元素对流量的调节，以及对积分电磁机构（92），这有效地改变所述阀芯和阀体中以调节电平之间的百分之环力的液压动力转向装置 转向辅助提供了一个给定的运营商转向输入。 所述电磁机构包括磁旋转电路（100）和固定磁路（102）。 旋转磁路包括一对轴向移位磁极片（106,108），其与所述小齿轮轴（28）以及设置在磁极片和与输入轴一起旋转之间设置的永久磁铁盘元件（104）的所有旋转（18 ）。 静止磁电路包括设置在所述旋转磁路和铁磁极元件（134-139）邻频各旋转磁极片的环形设计励磁线圈（130）。 励磁线圈被通电，以便改变阀体/阀芯百分之环力，并且因此，驾驶员的转向力，随着车辆速度。
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公开(公告)号：EP0292567A4
公开(公告)日：1989-06-13
申请号：EP87907828
申请日：1987-11-30
IPC分类号： B62D6/02 , B62D5/04 , B62D6/00 , B62D7/14 , B62D101/00 , B62D113/00 , B62D117/00 , B62D119/00 , B62D137/00
CPC分类号： B62D7/148 , B60G2202/135 , B60G2202/42 , B62D5/0436 , B62D5/0478 , Y10S477/906 , Y10T477/327
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