Multifunctional electric control explosive motor fault diagnosis apparatus

Abstract

Provided is a multifunctional electric control explosive motor fault diagnosis apparatus including a central processor 11, a timing signal processor 10, a database memory 12, a user interface 13, a timing signal input interface 14, a timing signal output interface 15, an analog voltage signal module 17, and an analog signal input interface 16. The apparatus includes the functions that the fault diagnosis of timing signals is realized by analyzing the input timing signal format and comparing with the format prestored in the database 12; the characteristic parameters are stored into the database 12 by analyzing the timing signal input into a new engine and are used for the future fault diagnosis of the same type of engines; the fault diagnosis of an engine that cannot operate is facilitated by outputting the timing signal and activating the ECU; and the fault detection of the engine ECU actuator driving signal and sensor signal can be realized and the waveform can be displayed.

Description

technical field [0001] The invention relates to a multifunctional electronic control internal combustion engine fault diagnosis device. Background technique [0002] Electronic control technology (referred to as electronic control) is widely used in modern internal combustion engines. attached figure 1 Shown is a typical electronically controlled internal combustion engine. figure 1 1 in is the electronically controlled engine. 2 is the control computer ECU. 3 is an electronically controlled actuator, such as the solenoid valve of the electronically controlled fuel injector, the solenoid valve of the electronically controlled fuel injection pump, the electronically controlled solenoid valve of the exhaust gas recirculation (EGR), etc. 5 is a sensor for measuring various physical quantities of the engine, such as a pressure sensor, a temperature sensor, and an air flow sensor. 4 is the engine synchronous speed sensor, also known as the timing sensor. [0003] The engine...

AI Technical Summary

Problems solved by technology

However, the performance of the engine will inevitably be affected, usually only in a "limp" manner, limiting power output

Failure of the two timing signals will directly cause the engine to fail to run

Since the application of engine timing signal generator to activate the engine ECU requires high technical skills, this technology has not been applied in the engine maintenance industry at present

Images