Abstract: A method of controlling a vehicle includes identifying an operating state of a torque converter clutch to be one of a locked operating state, or an unlocked operating state. A rotational speed of a turbine of a torque converter is sensed. When the torque converter clutch is operating in the locked operating state, a desired engine speed is defined to equal the sensed rotational speed of the turbine less a first slip value. When the torque converter clutch is operating in the unlocked operating state, the desired engine speed is defined to equal the sensed rotational speed of the turbine less a second slip value. At least one operating parameter of the engine is adjusted to control a torque output of the engine to affect a rotational speed of the engine so that the rotational speed of the engine is equal to the defined desired engine speed.

Abstract: A method and control module for controlling an engine includes a requested torque module that generates a requested torque and a maximum toque capacity module that determines a maximum torque capacity corresponding to a maximum torque capacity of the engine. A launch trim torque threshold determination module determines a launch trim torque threshold. A comparison module that compares the requested torque and the launch trim torque threshold. An output module that applies a fast rate limit to the requested torque up to the launch trim threshold when the requested torque is less than the launch trim torque threshold and a shower rate limited torque request when the requested torque is greater than the launch trim torque threshold.

Abstract: A method and control module for controlling an engine includes a requested torque module that generates a requested torque and a maximum toque capacity module that determines a maximum torque capacity corresponding to a maximum torque capacity of the engine. A launch trim torque threshold determination module determines a launch trim torque threshold. A comparison module that compares the requested torque and the launch trim torque threshold. An output module that applies a fast rate limit to the requested torque up to the launch trim threshold when the requested torque is less than the launch trim torque threshold and a shower rate limited torque request when the requested torque is greater than the launch trim torque threshold.