New Diesel Fuel Injector Delphi 28387256 OE F6800-53003 for Diesel Engine

A design method for a drive circuit of a fuel injector, which adjusts the strength or duration of strong current and holding current according to the inherent characteristics of the solenoid valve, and can reduce power consumption and extend the duration of the solenoid valve while realizing precise control of fuel flow. lifespan. It has the characteristics of high precision, good stability and simple control signal. The output circuit is mainly composed of floating gate driver, MOS-
Composed of FET tubes, the feedback circuit is composed of sampling resistors, operational amplifiers and voltage divider circuits. A closed-loop idea is adopted for the control of the solenoid valve of the fuel injector. This design can realize fuel-saving control and is a necessary design of the vehicle controller and Advantage. According to the inherent characteristics of the solenoid valve, the strength or duration of the strong excitation current and the holding current are adjusted, while realizing precise control of the fuel flow, it can also reduce power consumption and prolong the life of the solenoid valve. The transient suppression tube is used to realize static protection, and the inductor and capacitor group are used to realize high-frequency filtering, which can suppress the interference signal of the complex working environment on the engine. The high-side switch drive circuit and the low-side drive switch drive circuit are used to control the work of the fuel injector, which can ensure that the fuel injector is only opened at the correct moment and the engine is not damaged.