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公开(公告)号：EP1052158A2
公开(公告)日：2000-11-15
申请号：EP00106910.3
申请日：2000-03-31
摘要： A hydraulic control circuit (30) for a vehicle steering system (10) is provided. The hydraulic control circuit (30) is responsive to the rotational position of a steering wheel (32) and controls the actuation of a steering gear assembly (28) in response thereto. The hydraulic circuit (30) includes a first actuator (66) coupled to the vehicle steering wheel (32) and a second hydraulic actuator (68) coupled to the vehicle steering gear assembly (28). The first and second hydraulic actuators (66,68) are coupled together by a pair of fluid conduits (78). Rotation of the steering wheel (32) selectively causes the first actuator (66) to force hydraulic fluid through one of the plurality of fluid conduits (78) to cause the second hydraulic actuator (68) to produce a corresponding output motion. The corresponding output motion is operable for actuating the steering gear assembly (28) in a predetermined direction. The preferred embodiment includes a control system for improved monitoring and control of the hydraulic circuit, as well as an assist pump and compensation valve for gain control.
摘要翻译： 提供一种用于车辆转向系统（10）的液压控制回路（30）。 液压控制回路（30）响应于方向盘（32）的旋转位置并且响应于此控制舵机组件（28）的致动。 液压回路（30）包括联接到车辆方向盘（32）的第一致动器（66）和联接到车辆舵机组件（28）的第二液压致动器（68）。 第一和第二液压致动器（66,68）通过一对流体导管（78）联接在一起。 方向盘（32）的旋转选择性地使第一致动器（66）迫使液压流体通过多个流体管道（78）中的一个，使第二液压致动器（68）产生相应的输出运动。 相应的输出运动可操作以在预定方向上致动舵机组件（28）。 优选实施例包括用于改进液压回路监控和控制的控制系统，以及用于增益控制的辅助泵和补偿阀。
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公开(公告)号：EP1052158A3
公开(公告)日：2005-01-12
申请号：EP00106910.3
申请日：2000-03-31
摘要： A hydraulic control circuit (30) for a vehicle steering system (10) is provided. The hydraulic control circuit (30) is responsive to the rotational position of a steering wheel (32) and controls the actuation of a steering gear assembly (28) in response thereto. The hydraulic circuit (30) includes a first actuator (66) coupled to the vehicle steering wheel (32) and a second hydraulic actuator (68) coupled to the vehicle steering gear assembly (28). The first and second hydraulic actuators (66,68) are coupled together by a pair of fluid conduits (78). Rotation of the steering wheel (32) selectively causes the first actuator (66) to force hydraulic fluid through one of the plurality of fluid conduits (78) to cause the second hydraulic actuator (68) to produce a corresponding output motion. The corresponding output motion is operable for actuating the steering gear assembly (28) in a predetermined direction. The preferred embodiment includes a control system for improved monitoring and control of the hydraulic circuit, as well as an assist pump and compensation valve for gain control.
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