Patent ID: 7051715
Filing Date: 2006-05-30
Classification: F02B,F02D

Abstract:
1. A method of controlling fuel injection timing in a diesel engine of a railroad locomotive operable through discrete throttle notches of engine operating speed and power and subject to a load transient mode of operation, in which the load applied to the engine is increased without an increase in engine throttle notch, the method comprising: monitoring parameters indicative of a commanded speed of operation of the engine corresponding to an engine throttle notch; transmitting data representative of the commanded engine operating speed; monitoring parameters indicative of an actual speed of operation of the engine; transmitting data representative of the actual engine operating speed; in response to data representative of the commanded and actual engine operating speeds, detecting when the commanded engine speed exceeds the actual speed to establish a load transient mode; and advancing the fuel injection timing for the engine in accordance with a predetermined timing schedule in response to detecting a load transient mode, for reduced engine emissions.