A detection device for an automobile air-conditioning electronic control system

Abstract

The invention relates to a detection device for an automobile air conditioner electronic control system. The detection device for the automobile air conditioner electronic control system comprises a wiring harness 1, a wiring harness 2, a communication wiring harness 3, a branching and signal processor and a state displayer; one end of the wiring harness 1, one end of the wiring harness 2 and one end of the communication wiring harness 3 are respectively connected with the branching and signal processor; the other end of the communication wiring harness 3 is connected with the state displayer; the other end of the wiring harness 1 is connected with an air conditioner controller; the other end of the wiring harness 2 is connected with a vehicle body harness inserting piece. According to the technical scheme, the detection device for the automobile air conditioner electronic control system is strong in universality, the type of a sheath of the wiring harness 1 and the type of a sheath of the wiring harness 2 are changed according to the requirements of the vehicle inserting piece, and the detection device for the automobile air conditioner electronic control system can be suitable for air conditioner electric control system detection of vehicles of the same brand and other vehicles of different brands.

Description

technical field [0001] The invention belongs to the field of air conditioner detection, and specifically refers to a detection device for an electric control system of an automobile air conditioner. Background technique [0002] The content of the comprehensive detection of the vehicle's air-conditioning electronic control system includes many aspects: the status of the sensor, the status of the damper motor, the status of the blower, the status of the A / C request signal, and the status of other input and output signals. [0003] Most of these signals are detected by manual measurement, using measuring instruments such as multimeters, ammeters, oscilloscopes, etc., to measure voltage, current, pulse and other signals on the body wiring harness or at the electrical device end. [0004] In the inspection of the vehicle air-conditioning electronic control system, the inspectors use measuring instruments to detect the electrical signal of an electrical device in the air-conditio...

AI Technical Summary

Problems solved by technology

[0005] 1) When multiple signals need to be detected, the workload is huge and the work efficiency is low;

[0006] 2) When it is necessary to monitor multiple (such as more than 5) associated signal states at the same time, using the existing method, it is necessary to connect multiple (such as more than 5) measuring instruments at the same time, which is very inconvenient and error-prone

[0007] 3) If the wire is punctured or the wire insulation is stripped, it will destroy the insulation of the wire and increase the risk of short circuit in the wire harness

[0008] In addition, in the automatic air-conditioning system, the air-conditioning control panel has a self-inspection function. By operating the combined keys on the air-conditioning control panel, the self-inspection function of the electrical components of the air-conditioning system is executed. The self-inspection function has its limitations. , will report an error, such as short circuit, open circuit fault; and in the case of non-limit faults, no error will be reported, such as the damper is not turned in place, the voltage of each gear of the blower has deviation, and the temperature deviation collected by the sensor is large, etc.

Therefore, according to the existing method, it is impossible to accurately and comprehensively evaluate the state of each electrical component in the air conditioning system

For the normal working state of the air conditioner, it cannot reflect

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