INJECTOR CONTROL

摘要

A method for controlling the operation of a valve of a fuel injector. The method may include selecting an electrical current waveform from a plurality of selectable electrical current waveforms. The selected electrical current waveform is provided to the valve, which may be operated to control a characteristic of an injection event, such as, for example, fuel pressure, injection timing, and/or fuel mass, among others. The method further includes detecting an aberrant combustion event from the combustion of the injected fuel. If an aberrant combustion event is detected, the electrical current waveform associated with the injection event may be disabled. Additionally, upon detection of an aberrant combustion event, a value corresponding to the number of detected aberrant combustion events is incremented, which may be used to determine whether or not to continue to disable the selected waveform.

主权项

1. A method for controlling the operation of a valve of a fuel injector, the method comprising:
providing, by a control unit, an electrical current waveform to the valve to control at least one characteristic of an injection of a fuel into a cylinder; detecting an aberrant combustion of the fuel injected into the cylinder; and disabling the electrical current waveform associated with the occurrence of the detected aberrant combustion for at least a period of time.