Abstract: A system and method for controlling a compression ignition internal combustion engine having an electronic control module with an idle shutdown feature to automatically stop the engine after idling for a period of time include determining whether the engine is being loaded and overriding the idle shutdown feature to keep the engine running when the engine is being loaded. In one embodiment, the present invention includes monitoring operating conditions to determine that the vehicle is stationary, monitoring the engine to determine the engine is idling, initiating a timer/counter to provide an indication of idling time, determining that the engine is operating in an auxiliary power mode, determining engine load, and automatically stopping the engine when the idling time exceeds a first threshold and the engine load is less than a second threshold.

Abstract: A system and method for controlling a compression ignition internal combustion engine having an electronic control module with an idle shutdown feature to automatically stop the engine after idling for a period of time include determining whether the engine is being loaded and overriding the idle shutdown feature to keep the engine running when the engine is being loaded. In one embodiment, the present invention includes monitoring operating conditions to determine that the vehicle is stationary, monitoring the engine to determine the engine is idling, initiating a timer/counter to provide an indication of idling time, determining that the engine is operating in an auxiliary power mode, determining engine load, and automatically stopping the engine when the idling time exceeds a first threshold and the engine load is less than a second threshold.

Abstract: A system and method for controlling a compression ignition internal combustion engine having an electronic control module with an idle shutdown feature to automatically stop the engine after idling for a period of time include determining whether the engine is being loaded and overriding the idle shutdown feature to keep the engine running when the engine is being loaded. In one embodiment, the present invention includes monitoring operating conditions to determine that the vehicle is stationary, monitoring the engine to determine the engine is idling, initiating a timer/counter to provide an indication of idling time, determining that the engine is operating in an auxiliary power mode, determining engine load, and automatically stopping the engine when the idling time exceeds a first threshold and the engine load is less than a second threshold.

Abstract: A system and method for controlling engine speed of an internal combustion engine provide automatically returning to a set speed selected with a hand throttle after operating at idle or near idle. The system and method are particularly suited for operation in driving a mud pump used in petroleum drilling applications where the operator dials-in a desired operating speed corresponding to a desired pumping rate. The engine is returned to idle or near idle to allow additional sections of pipe to be added. The engine then automatically returns to the previously selected set speed without additional manipulation of the hand throttle. In one embodiment, dual hand throttles are provided to support remote station operation and control of the engine speed.