Complete vehicle fault self-diagnosis system

Abstract

The invention provides a complete vehicle fault self-diagnosis system which belongs to the technical field of automobiles and solves the problem that the traditional vehicles cannot carry out all-around diagnosis on self faults and clearly display the faults in real time. The complete vehicle fault self-diagnosis system comprises a plurality of branch controllers distributed on a vehicle body, and each branch controller is respectively connected to a sub vehicle control system and can respectively diagnose whether the sub vehicle control system connected with the branch controller has faults or not. The system also comprises a centralized controller and a display, wherein the branch controllers are all connected with the centralized controller, and the centralized controller can summarizediagnosis results of all branch controllers, comprehensively evaluate the fault level of the complete vehicle according to the diagnosis results of the branch controllers and generate solution information for reference; and the display is connected to the centralized controller and can display the fault level of the complete vehicle and the corresponding solution information. The complete vehiclefault self-diagnosis system has the advantage of clear and real-time display of vehicle conditions.

Description

technical field [0001] The invention belongs to the technical field of automobiles, and relates to a self-diagnosis system, in particular to a vehicle fault self-diagnosis system. Background technique [0002] With the application of more and more modern new automotive electronic technologies, there are more and more controllers in the car, and the faults are becoming more and more difficult to find. [0003] At present, most cars use the indicator light of the combination instrument to judge the state of the car, but many drivers themselves do not know the meaning of the indicator light very well. The indicator light in the car indicates which fault in the car, let alone whether the fault is serious or not, and whether it has a great impact on the driving of the car. In addition to this method, there is also a hand-held diagnostic instrument to diagnose the status of the car. Although the diagnostic instrument can directly display the status of the car, it is expensive, in...

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Problems solved by technology

[0003] At present, most cars use the indicator light of the combination instrument to judge the state of the car, but many drivers themselves do not know the meaning of the indicator light very well. The indicator light indicates which fault in the car, let alone whether the fault is serious or not, and whether it will have a great impact on the driving of the car

In addition to this method, there is also a way to diagnose the status of the car using a handheld diagnostic instrument. Although the diagnostic instrument can directly display the status of the car, it is expensive, inconvenient to carry, and most importantly, it is impossible to directly check the status of the car in real time.

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