METHOD FOR CONTROLLING AN ELECTRIC MACHINE IN A VEHICLE WITH AN ENGINE DISCONNECT CLUTCH

摘要

A method of controlling a vehicle, in which the vehicle includes an engine, a traction motor, and a clutch configured to selectively couple the engine to the motor, includes commanding the traction motor to provide an incremental torque. The motor is commanded to provide the incremental torque in response to the clutch being in a slipping condition. The magnitude of the commanded incremental torque is in response to the lesser of first and second torques. The first torque corresponds to an engine torque, and the second torque corresponds to a clutch torque capacity.

主权项

1. A method of controlling a vehicle having an engine, a transmission, and an electric machine capable of providing drive torque, selectively coupled to the engine via a clutch, and selectively coupled to the transmission, the method comprising:
in response to a driver torque request and the engine being off, commanding the electric machine to provide a drive torque; in response to an engine start request, commanding the clutch to shift from an open position through a slipping position to a locked position; and in response to the clutch being in the slipping position, commanding the electric machine to provide a total torque corresponding to a sum of the drive torque and an incremental torque, the incremental torque being based on a torque capacity of the clutch.