| 摘要 |
<p>Pat.-Appl. FORD/212-0319/07.03.2013 -13 Abstract The invention relates to a method for identifying increased friction in a power assisted rack-and-pinion steering system. In said method, a test current is 5 applied to an electric servomotor (7) of the rack-and-pinion steering system and a change in position of a rotor of the electric servomotor (7) as a result of the test current being applied to the electric servomotor (7) is detected. The detected change in position is then compared with a predetermined expected change in position. A friction state is determined depending on a result of the 10 comparison. The invention also relates to a power-assisted rack-and-pinion steering system comprising an electric servomotor (7) and a control unit (10) for executing the method according to the invention, and also to a motor vehicle 15 (1) comprising a rack-and-pinion steering system of this kind. Figure 1 2-3 2-1 2-4 2-2 Fig. 1</p> |
