초록 ▼

A method for controlling transfer from use of a first injection waveform type to use of a second injection waveform type in a hydraulically-actuated electronically-controlled fuel injection system of an engine includes sensing an engine speed and an engine load when the first injection waveform type

A method for controlling transfer from use of a first injection waveform type to use of a second injection waveform type in a hydraulically-actuated electronically-controlled fuel injection system of an engine includes sensing an engine speed and an engine load when the first injection waveform type is selected and storing the sensed engine speed and the sensed engine load. An actual engine speed is thereafter compared with the stored engine speed and an actual engine load is thereafter compared with the stored engine load. Transfer from use of the first injection waveform type to use of the second injection waveform type is prevented unless at least (i) a difference between the actual engine load and the stored engine load exceeds a predetermined load amount, or (ii) a difference between the actual engine speed and the stored engine speed exceeds a predetermined speed amount.

대표청구항 ▼

[ We claim:] [1.] A method for selectively utilizing an injection waveform map within a hydraulically-actuated electronically-controlled fuel injection system of an engine, the method comprising the steps of:sensing an engine speed and an engine load when the injection waveform map is utilized to se

[ We claim:] [1.] A method for selectively utilizing an injection waveform map within a hydraulically-actuated electronically-controlled fuel injection system of an engine, the method comprising the steps of:sensing an engine speed and an engine load when the injection waveform map is utilized to select a waveform type and storing the sensed engine speed and the sensed engine load;comparing an actual engine speed with the stored engine speed;comparing an actual engine load with the stored engine load; andcontrolling whether the injection waveform map is again utilized to select an injection waveform type based upon the comparison of the actual engine speed to the stored engine speed and the comparison of the actual engine load to the stored engine load.