Diesel Injector Fuel Injector 095000-1590 Denso Injector for E0590

This paper analyzes the basic working principle of the electric control injector and the solenoid valve, studies the detailed internal structure of the solenoid valve, and analyzes the influence of the main design parameters on the performance of the injector. Combined with the actual fault case, explain the ECU drive circuit and error reporting mechanism. In summary, the following conclusions can be drawn:

1) The fuel injector drive of the fuel system of the electronically controlled engine is a special chip, and the fault diagnosis circuit and error reporting conditions belong to the internal parameters of the chip manufacturer and are not provided externally. In this paper, the diagnostic voltage threshold and error condition of chip can be obtained quickly by simulating resistance.

2) Fault analysis of the electronic control engine needs to check from the design source, analyze the working characteristics of each component of the fuel system and the working principle of the control system, systematically analyze the failure forms of the failure components, determine the possible causes of the failure, list the fault tree, and check item by item.

3) For fault analysis, on-site data should be retained as far as possible, the interaction between the surrounding environment and surrounding parts should be analyzed, and the assembly process should be checked. In addition to considering the oil resistance and weather resistance of the materials, the assembly protection of electrical parts also needs to pay attention to the insulation of the materials.