| 摘要 |
PURPOSE: A hydrostatic automotive or high speed steering system is provided which is adapted for an on-highway type of vehicle, or for a high speed off-highway vehicle. CONSTITUTION: A full fluid-linked steering system, especially for use in on-highway steering, in which the system includes a fluid controller(21) including a fluid meter(65) operable to provide follow-up movement to controller valving(87,89), in response to the flow of fluid through the meter. The controller(21) includes a centering or biasing spring assembly(75) which provides sufficient torque that, upon rotation of the steering wheel(W), fluid is communicated to the steering actuator(19) without relative displacement of the valving, thus providing driver with the desired road feel. The system includes an EHC valve assembly(23) which controls flow to or from the actuator(19) in response to appropriate input signals(113,115) to maintain steered wheel to steering wheel registry.
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