| 摘要 |
The invention relates to a method and a device for determining a speed parameter (VRadDef) of at least one powered wheel (1, 2, 3, 4) of amotor vehicle. The corresponding wheel speed parameters (VRadi) and a parameter which describes the output drive rotation speed (nAbtr) pertaining to a vehicle gear (5) are determined for the other wheels of said vehicle. In order to provide a parameter which reliably describes a speed parameter pertaining to the wheel drive slip regulating system (1,2,3,4) or a drive dynamics regulating system in a vehicle despite failure of a revolution speed sensor located on one of the wheels (9, 10, 11, 12), (1, 2, 3, 4), describing the speed (VradDef) for at least one powered wheel (1,2,3,4) is determined as a function of the parameters describing the respective wheel speeds (Vradi) of the other powered wheels and as a function of the parameter describing the output drive rotataion speed (nAbt). |
