Method for operating hybrid vehicle powertrain, involves estimating torque after release of disengaging clutch, based on deviation of one or more engine torque, engine speed and engine braking of commanded values for release of clutch

摘要

The method involves releasing a disengaging clutch connected between an engine (10) and an electric motor in a vehicle drive train, in the motor switching off conditions, and estimating a torque after the release of disengaging clutch, based on deviation of one or more engine torque, engine speed and engine braking of the commanded values for release of the clutch. A crankshaft integrated starter/generator (CISG) is arranged to connect the motor to a transmission and the wheels of vehicle drive train mechanically.