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公开(公告)号：US4541499A
公开(公告)日：1985-09-17
申请号：US463236
申请日：1983-02-02
CPC分类号： B62D6/00
摘要： A vehicular power steering system is provided with a steering effort control system which controls the degree of power assistance by controlling the supply of hydraulic fluid to the hydraulic power actuator unit. The steering effort control system monitors the speed of the vehicle and the angular velocity of the steering wheel, and controls the quantity of the fluid supply in accordance with the monitored variables. The fluid supply quantity is determined so as to satisfy the following three conditions: (1) The steering must become heavier as the vehicle speed increases; (2) however, a sufficient amount of the fluid must be supplied even when the steering wheel is turned rapidly; and (3) the driver must be given a feel about the lateral acceleration of the vehicle during a turn.
摘要翻译： 车辆动力转向系统设置有转向力控制系统，其通过控制向液压动力致动器单元的液压流体的供应来控制动力辅助的程度。 转向力控制系统监视车辆的速度和方向盘的角速度，并且根据所监视的变量来控制流体供应量。 确定流体供给量以满足以下三个条件：（1）随着车速的增加，转向必须变重; （2）然而，即使当方向盘转动快时也必须提供足够量的流体; 和（3）司机必须在转弯期间感受到车辆的横向加速度。
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公开(公告)号：US4513835A
公开(公告)日：1985-04-30
申请号：US480820
申请日：1983-03-31
摘要： A steering control apparatus for a power-assisted vehicle steering system for a vehicle, comprising a steering pressure pump, a power cylinder, a pressure control valve operative to direct fluid under pressure from the pump to the power cylinder to develop in the cylinder a differential fluid pressure to produce a controlled degree of hydraulic steering assistance, and a fluid flow control valve bypassing the pressure control valve between the suction and delivery ports of the pump, wherein the differential fluid pressure to be developed in the power cylinder or the flow rate of the fluid to be discharged through the flow control valve is variable in two or more different basic modes in each of which the differential fluid pressure or the fluid flow rate is further continuously variable so that the vehicle driver is enabled to steer the vehicle with a manual steering effort continuously variable with, for example, the vehicle speed.
摘要翻译： 一种用于车辆的动力辅助车辆转向系统的转向控制装置，包括转向压力泵，动力缸，压力控制阀，其用于将来自泵的压力的流体引导到动力缸以在气缸中显影出差速器 流体压力以产生受控程度的液压转向辅助，以及旁路泵的抽吸和输送端口之间的压力控制阀的流体流量控制阀，其中在动力缸中要产生的差动流体压力或流量 通过流量控制阀排出的流体可变化为两种或多种不同的基本模式，其中差分流体压力或流体流速进一步连续变化，使得车辆驾驶员能够用手动引导车辆 转向力可以通过例如车速连续变化。
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公开(公告)号：US4530414A
公开(公告)日：1985-07-23
申请号：US471190
申请日：1983-03-01
IPC分类号： B62D6/02 , B62D6/00 , B62D101/00 , B62D113/00 , B62D5/06
CPC分类号： B62D6/00
摘要： A steering pressure control apparatus for a power-assisted steering system for a vehicle including a steering power cylinder to develop a steering assistance fluid pressure, comprising a detecting unit operative to detect a state in which the steering wheel is held in an angular position turned from the straight-ahead position thereof through an angle smaller than a predetermined value and to produce an output signal when the that predetermined state is detected; and a control unit responsive to the output signal from the detecting unit and operative to control the steering assistance fluid pressure to be developed in the steering power cylinder so that the steering assistance fluid pressure is lower or higher in the presence of the signal than in the absence of the signal.
摘要翻译： 一种用于车辆的动力辅助转向系统的转向压力控制装置，其包括用于产生转向辅助液压的转向动力油缸，包括检测单元，其操作以检测方向盘保持在从 其直线前进位置小于预定值，并在检测到该预定状态时产生输出信号; 以及控制单元，其响应于来自所述检测单元的输出信号，并且可操作以控制在所述转向动力气缸中要产生的转向辅助液压力，使得在所述信号存在的情况下所述转向辅助液压力低于或高于所述转向辅助液压 没有信号。
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公开(公告)号：US4669360A
公开(公告)日：1987-06-02
申请号：US724643
申请日：1985-04-18
申请人： Tokiyoshi Yanai , Hirotsugu Yamaguchi , Masafumi Nakayama , Megumu Higuchi , Yutaka Aoyama , Moritsune Nakata
发明人： Tokiyoshi Yanai , Hirotsugu Yamaguchi , Masafumi Nakayama , Megumu Higuchi , Yutaka Aoyama , Moritsune Nakata
摘要： An input shaft and an output shaft can rotate relative to each other. Pressure supplied to a pressure-responsive actuator depends on the axial position of a movable valve member. A transmission arrangement serves to move the valve member only in the axial direction as the input and output shafts rotate relative to each other. The valve member and each of the input and output shafts are wholly outside one another.
摘要翻译： 输入轴和输出轴可以相对于彼此旋转。 供应到压力响应致动器的压力取决于可动阀构件的轴向位置。 传动装置用于仅当输入和输出轴相对于彼此旋转时仅在轴向方向上移动阀构件。 阀构件和输入和输出轴中的每一个完全彼此外部。
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公开(公告)号：US4634135A
公开(公告)日：1987-01-06
申请号：US665744
申请日：1984-10-29
申请人： Moritsune Nakata , Tokiyoshi Yanai , Hirotsugu Yamaguchi , Megumu Higuchi , Yutaka Aoyama , Yasuji Shibahata
发明人： Moritsune Nakata , Tokiyoshi Yanai , Hirotsugu Yamaguchi , Megumu Higuchi , Yutaka Aoyama , Yasuji Shibahata
CPC分类号： B62D7/22 , Y10T74/1967 , Y10T74/2147
摘要： In a vehicle the steering system includes a steering gear housing transversely mounted relative to the vehicle body by means of a plurality of gear housing mount insulators. Each of the gear housing mount insulators elastically supports the gear housing in such a manner as to allow transverse displacement of the gear housing with respect to the vehicle body. A damper is provided to restrain the transverse displacement allowed by the gear housing mount insulators.
摘要翻译： 在车辆中，转向系统包括通过多个齿轮壳体安装绝缘体相对于车体横向安装的转向齿轮壳体。 每个齿轮壳体安装绝缘体以允许齿轮壳体相对于车身横向移位的方式弹性地支撑齿轮壳体。 提供阻尼器以限制齿轮箱安装绝缘子允许的横向位移。
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公开(公告)号：US4745985A
公开(公告)日：1988-05-24
申请号：US710669
申请日：1985-03-12
摘要： This automotive vehicle power-steering system can positively compensate for resistance to the return of a steering linkage from an operating position to its neutral rest position after the vehicle turns a corner, and can enhance a steerability of the vehicle. The system includes a controller ordering a power-assist actuator to reduced the steering angular deviation of a steering wheel to zero when the controller receives a zero-level signal from a steering torque sensor and non-zero-level signal from a steering angular deviation sensor. The method for the system includes a step of controlling the power-assist actuator to generate a return-assist force counteracting the resistance and variable according to vehicle conditions.
摘要翻译： 这种机动车辆动力转向系统可以在车辆转弯后能够正确地补偿转向联动装置从操作位置返回到中立静止位置的阻力，并且可以提高车辆的操纵性。 该系统包括控制器，当控制器从转向转矩传感器接收到零电平信号和来自转向角偏差传感器的非零电平信号时，订购一个动力辅助致动器以将方向盘的转向角偏差减小到零 。 该系统的方法包括控制助力致动器以根据车辆状况产生抵抗电阻和变量的返回辅助力的步骤。
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公开(公告)号：US4473128A
公开(公告)日：1984-09-25
申请号：US401017
申请日：1982-07-22
摘要： In a vehicular power steering system, the hydraulic fluid supply to a hydraulic power actuator is controlled in accordance with the vehicle speed and the angular velocity of the steering wheel. Preferably, the fluid supply is reduced so that the steering effort becomes heavier as the vehicle speed increases while the fluid supply is increased when the angular velocity of the steering wheel is high. To control the fluid supply, there is provided, in a power steering system, a bypass valve means for draining a portion of the fluid flow to bypass the power actuator, and control means for producing a control signal to control the bypass valve means in accordance with the vehicle speed and the angular velocity of the steering wheel.
摘要翻译： 在车辆动力转向系统中，根据车辆速度和方向盘的角速度来控制对液压动力致动器的液压流体供给。 优选地，当方向盘的角速度高时，当流速增加时，随着车速增加，转向力变得更重。 为了控制流体供应，在动力转向系统中设置有用于排出流体流的一部分以绕过动力致动器的旁通阀装置，以及用于产生控制信号以控制旁通阀装置的控制装置 车速和方向盘的角速度。
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8.发明授权Fluid-operated control apparatus for power-assisted steering system of automotive vehicle 失效用于汽车动力辅助转向系统的流体控制装置
公开(公告)号：US4410059A
公开(公告)日：1983-10-18
申请号：US359678
申请日：1982-03-19
CPC分类号： B62D6/02
摘要： A control apparatus for a power-assisted vehicle steering system, comprising a power cylinder having two pressure-acting chambers, a control valve having inlet and outlet ports respectively communicable with a pump and a fluid reservoir and selectively with the inlet and outlet ports, a pressure compensating valve having an inlet port communicating with the pressure-acting chambers, outlet and control ports and a valve member for varying the degree of communication between the inlet and outlet ports, the fluid pressure in the inlet port being variable with the fluid pressure from the pump and urging the valve member to move in one direction and a spring urging the valve member to move in the other direction to maintain constant the differential pressure between the inlet and outlet ports, and a pressure reducing valve having an inlet port communicating with the outlet port of the compensating valve, a discharge port communicating with the reservoir and the control port of the compensating valve and a valve member to vary the degree of communication between the inlet and discharge ports of the reducing valve, the fluid pressure in the discharge port being directed to the control port and developing therein the fluid pressure urging the valve member of the compensating valve for movement in the said other direction, the valve member of the reducing valve being responsive to a signal variable with vehicle speed.
摘要翻译： 一种用于动力辅助车辆转向系统的控制装置，包括具有两个压力作用室的动力缸，具有可分别与泵和流体容器连通并具有入口和出口的入口和出口端口的控制阀， 压力补偿阀具有与压力作用室，出口和控制端口连通的入口端口和用于改变入口和出口之间的连通度的阀构件，入口端口中的流体压力随着流体压力的变化而变化 泵和推动阀构件沿一个方向移动，弹簧迫使阀构件沿另一方向移动以保持入口和出口之间的压差恒定，并且具有与 补偿阀的出口，与贮存器连通的排出口和补偿器的控制口 以改变所述减压阀的入口和排出口之间的连通度，所述排出口中的流体压力被引导到所述控制端口，并且在其中显影以推动所述补偿阀的阀构件的流体压力 为了在所述另一方向上移动，减速阀的阀构件响应于车速的信号变化。
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公开(公告)号：US4418779A
公开(公告)日：1983-12-06
申请号：US372446
申请日：1982-04-27
CPC分类号： B62D5/06
摘要： A control apparatus for a power-assisted steering system, comprising a power cylinder having pressure acting chambers respectively communicating with the control ports of a pressure control valve having inlet and outlet ports respectively communicable with the delivery and suction ports of a pump, and first and second flow control valves each having an inlet port and a discharge port communicating with the suction port of the pump, each flow control valve including a control pressure acting chamber communicating with a pressure acting chamber of the power cylinder to develop a differential pressure variable with a differential pressure between the pressure acting chambers of the cylinder, and a valve member movable in response to the differential pressure acting thereon and urged to provide communication between the inlet and discharge ports of each flow control valve, the inlet port of the first flow control valve being in constant communication with the delivery port of the pump and the inlet port of the pressure control valve, the inlet port of the second flow control valve being in constant communication with the outlet port of the pressure control valve, the valve member of each flow control valve being operative to block the communication between the inlet and discharge ports of the valve when the differential pressure is higher than a predetermined value, the second flow control valve further comprising a bypass providing constant communication between the outlet port of the pressure control valve and the suction port of the pump independently of the valve member.
摘要翻译： 一种用于动力辅助转向系统的控制装置，包括具有压力作用室的动力缸，所述动力缸分别与具有可与泵的输送和吸入端口连通的入口和出口的压力控制阀的控制端口连通，以及第一和 第二流量控制阀，其具有与泵的吸入口连通的入口和排出口，每个流量控制阀包括与动力缸的压力作用室连通的控制压力作用室，以形成压力变量， 气缸的压力作用室之间的压差和可响应于作用在其上的压差而可移动的阀构件，并被推动以在每个流量控制阀的入口和排出口之间提供连通，第一流量控制阀 与泵的输送口持续通信 压力控制阀的入口，第二流量控制阀的入口与压力控制阀的出口恒定连通，每个流量控制阀的阀构件可操作以阻止入口和 所述第二流量控制阀还包括在所述压力控制阀的所述出口与所述泵的吸入口之间恒定的连通的第二流量控制阀，所述旁路独立于所述阀构件。
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公开(公告)号：US4650019A
公开(公告)日：1987-03-17
申请号：US759845
申请日：1985-07-29
CPC分类号： B62D5/0409
摘要： An inventive electrical motor-assisted power-steering system is compact while still providing adequate steering assist force. The system can also act as a manual steering system in the event of failure of an electrical motor. The system includes a steering gear with a shaft rotated manually via a steering shaft, a worm driven by the electrical motor operating in response to rotation of the steering shaft, and a worm wheel fixed to the steering gear shaft and meshing with the worm. The lead angle of the worm is selected to be larger than the friction angle between the worm and the worm wheel so that the worm wheel can drive the worm freely if the motor should fail.
摘要翻译： 本发明的电动机辅助动力转向系统是紧凑的，同时仍然提供足够的转向辅助力。 在电动机发生故障的情况下，该系统还可以用作手动转向系统。 该系统包括具有通过转向轴手动转动的轴的转向齿轮，由响应于转向轴的旋转而操作的电动机驱动的蜗杆，以及固定到转向齿轮轴并与蜗杆啮合的蜗轮。 蜗杆的前角被选择为大于蜗杆与蜗轮之间的摩擦角，使得蜗轮可以在电动机失效时自由地驱动蜗杆。
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