Patent ID: 8090502
Filing Date: 2012-01-03
Classification: B62D

Abstract:
1. A device for reducing unwanted excitations at a steering wheel, comprising: a sensor system mounted to sense unwanted excitations at the steering wheel and/or a steering gear connected to the steering wheel; and a closed-loop control unit connected to said sensor system, said control unit being configured to generate an additional steering torque signal on the basis of the sensed unwanted excitation, and to cause a servomotor to apply an additional steering torque on the steering gear; said closed-loop control unit being configured to evaluate in quantitative and/or qualitative terms an unwanted excitation to be compensated, said unwanted excitation being due to a fault on the vehicle, and, when a predefined limiting value is exceeded, a fault entry is written into a monitoring unit and/or a driver is warned by a warning signal; and said sensor system being mounted to sense an angular position of a rotor of the servomotor of an electromechanical steering system and a steering torque of the steering wheel, the sensor signals being tapped from an electromechanical steering support.