Method for estimating friction moment of internal combustion engine, involves detecting electrical or magnetic parameters of electric motor, where friction moment of internal combustion engine is estimated on basis of detected parameters

摘要

The method involves detecting electrical or magnetic parameters of an electric motor (2). The electric motor exchanges turning moment with an internal combustion engine (1). Friction moment of the internal combustion engine is estimated on basis of the detected parameters. The turning moment exchanged by the electric motor is determined on the basis of detected parameters. An independent claim is included for a controller with a sequential program for controlling an internal-combustion engine or an electric motor.