A method for guaranteeing an oil supply in the case of an automatic transmission

摘要

It is a method for guaranteeing an oil supply in the case of an automatic transmission during a towing operation is proposed, wherein the with the vehicle wheels (7) coupled to the main shaft (12) of the transmission with a drive shaft of the oil supply pump (17) of the transmission is connected if, in the case of the drive motor is switched off, a rotational speed on the main shaft (12) of the transmission is detected. Furthermore, a drive train with at least one drive motor and an automatic transmission in groups construction and countershaft with pneumatically actuated positive switching elements is proposed, wherein a towing operation in the case of the drive motor is switched off, of the vehicle on the basis of a transmission output shafts sensor (13) of the main transmission means (4) can be detected and the main shaft (12) of the main transmission means (4) with a with the oil supply pump (17) is connected to the countershaft (15) for the oil supply can be connected in the case of towing operation.