초록 ▼

An apparatus and method for varying the current levels of a fuel injection signal used in connection with an electronically controlled hydraulic actuator unit injector fuel system is disclosed. The apparatus and method varies the current level of the fuel injection signal delivered to the unit injec

An apparatus and method for varying the current levels of a fuel injection signal used in connection with an electronically controlled hydraulic actuator unit injector fuel system is disclosed. The apparatus and method varies the current level of the fuel injection signal delivered to the unit injector based on sensed engine parameters, which preferably include a sensed pressure of hydraulic actuating fluid and a sensed temperature of the engine.

대표청구항 ▼

[ What is claimed is:] [1.] An electronic control system for use with a compression ignition engine having a hydraulically actuated electronic unit fuel injector connected to a source of high pressure actuating fluid, said electronic control system comprising:an electronic controller electrically co

[ What is claimed is:] [1.] An electronic control system for use with a compression ignition engine having a hydraulically actuated electronic unit fuel injector connected to a source of high pressure actuating fluid, said electronic control system comprising:an electronic controller electrically connected to said hydraulically actuated electronic unit fuel injector;a pressure sensor associated with said high pressure actuating fluid, said pressure sensor electrically connected to said electronic controller and producing a pressure signal responsive to a pressure of said high pressure actuating fluid;wherein said electronic controller calculates a fuel injection signal as a function of said pressure signal and delivers said fuel injection signal to said hydraulically actuated electronic unit fuel injector; andwherein said electronic controller varies a current level of said fuel injection signal in response to said pressure signal.