Patent ID: 6367570
Filing Date: 2002-04-09
Classification: B60K,B60L,B60W,Y02T

Abstract:
A hybrid motor vehicle power plant arrangement comprising:an internal combustion engine having an internal combustion engine output shaft; an electric motor having an electric motor output shaft; a coupling arrangement that couples the electric motor output shaft to the internal combustion engine output shaft; and an electronic controller connected to electronically control the internal combustion engine and the electric motor, wherein the electric controller controls the electric motor to provide a positive or negative loading to the internal combustion engine output shaft, and at least sometimes operates the electric motor in a mode that allows the electric motor to remain mechanically coupled to the internal combustion engine through the coupling arrangement while minimizing loading of the internal combustion engine output shaft by the electric motor, by controlling electric current to the electric motor so that the electric motor output shaft rotates at substantially the same speed as the internal combustion engine output shaft.