ANALOG COMPUTER CIRCUIT FOR CONTROLLING A FUEL INJECTION SYSTEM DURING ENGINE CRANKING

摘要

An analog computer circuit for controlling a fuel injection system during engine cranking. The fuel injection system has an electrically controllable fuel injector that is intermittently actuated. The analog computer circuit develops a logic level signal having cyclically recurring time intervals that vary depending upon the manner in which a capacitor is charged from a DC voltage supply. Several electrical impedances are selectively placed in circuit with the capacitor and the voltage supply to control its rate of charging during engine cranking.