Patent ID: 8352108
Filing Date: 2013-01-08
Classification: B60W,Y02T

Abstract:
1. Method for controlling operation of a hybrid powertrain including an internal combustion engine configured to transfer mechanical power via a hybrid transmission to a driveline in response to an operator torque request, the hybrid transmission configured to transfer power among the internal combustion engine, an electric torque machine and an output member of the hybrid transmission, the output member coupled to the driveline, the electric torque machine electrically coupled to an electrical energy storage device, wherein a processor performs the method comprising: monitoring input speed from the engine to the hybrid transmission; calculating an input speed error between the monitored input speed and a preferred input speed; monitoring operating parameters associated with a plurality of torque actuators, the torque actuators including the internal combustion engine, the electric torque machine and the output member; selecting one of the torque actuators; and modifying a state of a control parameter associated with the selected one of the torque actuators in response to the input speed error, said modifying comprising only modifying the state of the control parameter associated with the selected one of the torque actuators in response to the input speed error and not modifying states of control parameters associated with non-selected ones of the torque actuators in response to the input speed error.