Operating drive system of motor vehicle with which drive wheels of vehicle are driven by engine across stepless automatic gearbox with normal type of operation is specified for normal driving operation

摘要

The operating method is carried out and an operating type of brake engagement is specified for the event, that a slip exceeding a determined value at one driving wheel at least is detected. In the normal manner of operation a normal engine torque value (Mn) is specified as the desired value of the engine torque (M) of the engine. Additionally in the operating type of brake engagement, the engine torque (M) is reduced compared to the normal engine torque value (Mn) to an actual engine torque value (Ma). The difference between the normal and the actual torque value is determined as a differential torque (Md). A maximum desired rpm (na) is specified for the drive rpm (na) for the drive rpm (n) of the automatic gearbox, depending on the differential torque (Md).