| 摘要 |
A steering system for vehicles can be operated in a normal mode, in which a steering handle actuated by the driver and steered vehicle wheels are connected to one another via a control system, and in an emergency mode, in which the steering handle and the steered vehicle wheels are positively coupled. To achieve a steering system which increases the operational reliability of the steering system by simple design measures, a steering-angle control unit for a steering-angle actuator actuates the steered vehicle wheels. The control unit contains a first steering-angle control system, and a manual-torque control unit for a manual-torque actuator actuates the steering handle for the purpose of simulating manual torques. The control unit also contains a first manual-torque control system, and the steering-angle control unit comprises a second manual-torque control system, which is connected redundantly with the first manual-torque control system of the manual-torque control unit. The manual-torque control unit comprises a second steering-angle control system which is connected redundantly with the first steering-angle control system of the steering-angle control unit.
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