Method for controlling and/or regulating clutch in drive train of hybrid vehicle, involves detecting and evaluating rotation speed gradient by control unit, and adapting clutch characteristic curve to evaluated speed gradient

摘要

The method involves coupling an internal combustion engine and an electrical machine by a clutch using a bus system. A gear box of a drive train is coupled with the machine. A frictional connection of the gear box is interrupted by switching elements, so that the clutch is adjusted to a defined position. Rotation of the gear box or a gear box section is delayed with a constant rotational torque up to standstill condition by the machine. A rotation speed gradient is detected and evaluated by a control unit, where a clutch characteristic curve is adapted to the speed gradient. The bus system is selected from a group consisting of a controller area network (CAN)and a local interconnect network (LIN) bus or FlexRay(RTM: deterministic, fault-tolerant and high-speed bus system).