Patent ID: 7047745
Filing Date: 2006-05-23
Classification: B60K,B60W,F02D,Y02T

Abstract:
1. A method for operating a hybrid engine including an internal combustion engine, the internal combustion engine further having an output shaft, the hybrid engine further including an electric motor having an output shaft connected mechanically to the output shaft of the internal combustion engine, the motor being able to be switched electrically between a driving operation mode in which the motor drives the internal combustion engine and a generating operation mode in which the motor generates electric power, the hybrid engine being fitted with a crank angle sensor for sensing the crank angle of the internal combustion engine, the hybrid engine being further fitted with a computer for controlling the electric switching of the motor according to information from the crank angle sensor, the method comprising the steps of: so controlling the motor that the computer creates at least one driving phase and at least one generating phase according to a prepared program and the information from the crank angle sensor during the period from an ignition time to the next ignition time, the driving and generating phases pairing with each other; and so controlling the motor by means of the computer as to keep operating alternately in the driving and generating operation modes during the driving and generating phases, respectively.