| 摘要 |
A front-wheel steering system has a hydraulic power cylinder, and a control valve responsive to operation of a steering wheel for controlling oil supplied to the power cylinder so as to assist steering effort. A detector cylinder device is provided for cooperating with the power cylinder. The detector cylinder has a detector piston, a pair of chambers formed on the opposite sides of the detector piston and communicated with chambers on opposite sides of the piston of the power cylinder, and a pair of springs provided in the chambers for urging the detector piston to a neutral position. A potentiometer is connected to one of a rod of the detector piston, thereby producing an output signal in accordance with displacement of the detector piston. In response to the output signal, rear wheels are steered.
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