Single motor recovery for an electrically variable transmission
A vehicular powertrain includes operatively coupled engine, electrically variable transmission and driveline. During normal operation when all motors are operating as expected, the engine is operated in a torque control mode in accordance with a torque command provided by a system controller to an engine controller and engine speed is controlled by the motors. During operation when all motors are not operating as expected, the engine is operated in a speed control mode in accordance with a speed command provided by the system controller to the engine controller and engine load torque is controlled by the operative motors.
General Motors Corporation
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B60W B60W B60W B60W B60W B60K
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Tung-Ming Gregory A. Todd M.
Hsieh Hubbard Steinmetz