| CPC B62D 5/006 (2013.01) | 8 Claims |
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1. A method to control a steer-by-wire steering system for a road vehicle including a steering device, a road wheel actuator to actuate road wheels, and a controller configured or programmed to generate a motor torque request for the road wheel actuator based on an actual or an estimated position and a position request, which is based on the position of the steering device, the method comprising:
detecting a road wheel actuator power limit situation;
modifying the position request so that it can be followed by the road wheel actuator within power limits to provide a modified position request, the modifying of the position request and a resulting speed of a road wheel angle change is based on a rate, the rate being based on a position deviation between an actual position and the modified position request; and
using the modified position request to generate the motor torque request for the road wheel actuator.
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