公开(公告)号：US5957027A

公开(公告)日：1999-09-28

申请号：US163515

申请日：1998-09-30

Applicant: Wendell L. Gilbert ,  Michael R. Morsches ,  Fredrick D. Venable

Inventor： Wendell L. Gilbert ,  Michael R. Morsches ,  Fredrick D. Venable

IPC: B62D5/083 ,  F15B9/10

CPC classification number: B62D5/083 ,  Y10T137/86654

Abstract: A hydraulic power steering gear (10) comprises first and second relatively rotatable valve members (40 and 42). The first valve member (40) includes a radially extending passage (64). The second valve member (42) has an arcuate cam surface (184). A detent member (220) acts between the first and second valve members (40 and 42). The detent member (220) has a curved outer surface (252). A spring (240) biases the detent member (220) radially outward against the cam surface (184). The spring (240) is disposed in the radially extending passage (64) in the first valve member (40). The detent member (220) is disposed in the arcuate cam surface (184) in the neutral condition and provides a physically perceptible indication to a driver of the vehicle of operation of the steering gear (10) between the neutral condition and the actuated condition.

Abstract translation: 液压动力舵机（10）包括第一和第二相对可旋转的阀构件（40和42）。 第一阀构件（40）包括径向延伸的通道（64）。 第二阀构件（42）具有弓形凸轮表面（184）。 止动构件（220）作用在第一和第二阀构件（40和42）之间。 止动构件（220）具有弯曲的外表面（252）。 弹簧（240）将止动构件（220）径向向外偏压抵靠凸轮表面（184）。 弹簧（240）设置在第一阀构件（40）中的径向延伸通道（64）中。 棘爪构件（220）在中立状态下设置在弧形凸轮表面（184）中，并且在空档状态和致动状态之间向舵机（10）的操作车辆的驾驶员提供物理上可察觉的指示。

公开(公告)号：US4771846A

公开(公告)日：1988-09-20

申请号：US910204

申请日：1986-09-22

Applicant: Fredrick D. Venable ,  Jerry L. Cage

Inventor： Fredrick D. Venable ,  Jerry L. Cage

IPC: B62D5/06 ,  B62D5/00 ,  B62D5/09

CPC classification number: B62D5/09 ,  B62D5/005

Abstract: A steering apparatus for artificially establishing steering feel in a steering system not having a mechanical connection between the steering wheel and the steerable wheels. The apparatus includes a hydraulic steering motor connected to the steerable wheels. A steering wheel position sensor and a steerable wheel position sensor each produce an electrical signal respectively indicative of the steering wheel position and the position of the steerable wheels. An electronic control unit monitors the sensor signals and controls a solenoid operated directional control valve to steer the vehicle in a direction and at a steering rate in response to the monitored signals. An electromagnetic friction brake is connected to a support and to the input shaft and is controlled by the electronic control unit to provide steering feel. The friction brake includes an armature fixed to the support and a brake member secured for rotation with the input shaft via a spline conneciton. The brake member is movable toward the armature under the influence of the magnetic field generated by the armature. The degree of mechanical coupling between the armature and the brake member is proportional to the magnetic field strength. Steering feel is controlled by the electronic control unit in response to the difference between the desired steering direction, as determined from the steering wheel position sensor, and the actual steering direction, as determined from the steerable wheel position sensor.

Abstract translation: 一种用于在不具有方向盘和可转向轮之间的机械连接的转向系统中人为地建立转向感觉的转向装置。 该装置包括连接到可转向轮的液压转向马达。 方向盘位置传感器和可转向轮位置传感器各自产生分别指示方向盘位置和可转向轮的位置的电信号。 电子控制单元监视传感器信号并且控制电磁操作的方向控制阀以响应于所监视的信号在方向和转向速率下引导车辆。 电磁摩擦制动器连接到支撑件和输入轴，并由电子控制单元控制以提供转向感。 摩擦制动器包括固定到支撑件的衔铁和固定以便通过花键连接件与输入轴一起旋转的制动构件。 在电枢产生的磁场的影响下，制动构件能够朝向衔铁移动。 电枢和制动部件之间的机械耦合程度与磁场强度成比例。 响应于从方向盘位置传感器确定的期望转向方向与从可转向轮位置传感器确定的实际转向方向之间的差异，由电子控制单元控制转向感。

公开(公告)号：US4753121A

公开(公告)日：1988-06-28

申请号：US46141

申请日：1987-05-05

Applicant: Fredrick D. Venable ,  David C. Shropshire

Inventor： Fredrick D. Venable ,  David C. Shropshire

IPC: B62D1/18 ,  B62D1/184

CPC classification number: B62D1/184 ,  Y10T74/20594 ,  Y10T74/20636 ,  Y10T74/2069

Abstract: A steering column having a pair of steering column members arranged coaxially about a first axis. One of the steering column members is axially movable along the first axis relative to the other steering column member. The steering column members are supported for angular movement about a second axis extending transverse to the first axis. A first lock releasably locks the members in one of a plurality of relative axial positions along the first axis. A second lock releasably locks the members in one of a plurality of angular positions about the second axis. A control lever is mounted for pivotal movement toward and away from a neutral position. An actuator operates in response to pivotal movement of the control lever away from the neutral position in a direction of desired movement of the one member to actuate one or both of the first and second locks to release the one member for movement to the desired position in the same direction in which the control lever is moved.