Vehicle drive train operating method, involves controlling actual driving torque during phase by changing engine torque and during load transfer phase by load transfer of shifting element during overlap shift operation

摘要

The method involves controlling an actual driving torque during a phase by changing engine torque and during load transfer phase by load transfer of a shifting element to be shifted during an overlap shift operation and by simultaneous change of the engine torque continuously in a direction of a reference driving torque. The engine torque of a prime mover (4) is lowered with the presence of a shift request for a traction upshift in a direction of a threshold value. Transmission capability of the element is increased with the threshold value in a direction of a load transfer value.