| 摘要 |
A four-wheel steering arrangement for motor vehicles is provided with a first steering device for the front wheels operated by a steering wheel and a second steering device for the rear wheels, which are held by wheel suspension links. The rear wheels are controlled by a hydraulic adjusting device and are adjusted at a variable wheel steering angle ratio with respect to the front wheels, as a function of determined driving condition quantities which are fed to an electronic control unit, particularly a vehicle computer. The steering device comprises a hydraulic control cylinder having a restoring device. This restoring device is connected by adjusting elements providing for the adjustment of the rear wheel steering angles so that they can be swivelled around an axis of rotation formed by support joints between the wheel carrier and the wheel suspension link for steering and are slowly returned to a non-steering position upon system failure.
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