Patent ID: 7231284

Claim:
A controller for hybrid vehicle having an internal combustion engine operating from a fuel supply and a motor generator that drives and assists said engine, said controller comprising a control unit that includes an electric power generation controller to control the quantity of electric power generated by said motor generator during variations in engine speed, and a fuel cut controller to stop fuel supply if a predetermined fuel cut condition is satisfied, said power generation controller of said control unit controlling such that the quantity of electric power generation is set at predetermined values according to engine speed, and is set at different values, at the same engine speed, according to whether the fuel cut is performed or is not performed, wherein the quantity of the electric power generation while the fuel cut is not performed is greater than the quantity of the electric power generation while the fuel cut is performed at the same engine speed, said power generation controller controlling the quantity of electric power generation so as to be at the greater quantity, which corresponds to when the fuel cut is not performed, after the fuel cut control has been performed and when the throttle opening angle is less than a threshold angle for fuel cut.