Control system for turbocharger with rotary electric machine

Claim 1

A control system for a turbocharger including a turbine drivable by exhaust gases emitted from an internal combustion engine on a motor vehicle, a rotatable shaft coupled to the turbine, a compressor coupled to said rotatable shaft for charging air under pressure into the internal combustion engine, and a rotary electric machine coupled to the rotatable shaft, said control system comprising: means for detecting the amount of depression of an accelerator pedal which controls operation of said internal combustion engine; means for detecting the rotational speed of said internal combustion engine; a battery mounted on said motor vehicle; means for calculating a maximum engine torque corresponding to the rotational speed of said internal combustion engine when said accelerator pedal is fully depressed; means for calculating an amount of electric power, to be supplied to said rotary electric machine, required to produce a maximum boost pressure corresponding to the calculated maximum engine torque; and means for supplying said calculated amount of electric power from said battery to said rotary electric machine.