Patent ID: 6073619
Filing Date: 2000-06-13
Classification: F02D,F02M,Y02T

Abstract:
A method of controlling the amount of fuel delivered to an internal combustion engine comprising the steps of:generating a first engine operating parameter signal;generating a second engine operating parameter signal;initially positioning a fuel flow valve based on an open-loop table value corresponding to said first and second engine operating parameter signals; andoperating the engine under closed-loop control by adjusting the amount of fuel delivered to said engine in response to the output of an exhaust gas oxygen sensor and said first engine operating parameter signal to maintain a desired air/fuel ratio wherein the magnitude of the rate of change of said amount of fuel delivered is responsive to said first engine operating parameter signal and the switch time of said exhaust gas oxygen sensor, and the direction of said rate of change is responsive to said output of said exhaust gas oxygen sensor.