Patent ID: 8225608

Claim:
A hybrid powertrain for a vehicle comprising: an internal combustion engine arranged to propel a vehicle; a turbocharger arranged relative to the engine for boosting torque of the engine and assisting acceleration of the vehicle; an energy storage device arranged with respect to the powertrain for storing electrical energy; a first motor-generator mounted with respect to the turbocharger and arranged to selectively assist acceleration of the vehicle by driving the turbocharger, to provide regenerative charging of the energy storage device, and to be idle, as modes of operation; a second motor-generator mounted with respect to the powertrain and arranged to selectively assist acceleration of the vehicle, to provide charging of the energy storage device, to provide regenerative charging of the energy storage device, and to be idle, as modes of operation; a sensor arranged with respect to the powertrain for sensing vehicle operating parameters; and a controller responsive to the sensed vehicle operating parameters and arranged with respect to the powertrain for controlling and coordinating the modes of operation of the first motor-generator and of the second motor-generator; wherein the controller is configured with a stored algorithm to combine the modes of operation of the first motor-generator and of the second motor-generator in a first group for assisting vehicle acceleration and the modes of operation of the first motor-generator and of the second motor-generator in a second group for providing regenerative charging, and additionally configured to select a combination from the first group to assist vehicle acceleration and from the second group to provide regenerative charging.