Method and device for diagnosis and early warning of vehicle faults

Abstract

The invention provides a method and device for diagnosis and early warning of vehicle faults. The method includes the steps of establishing statistic models corresponding to various operation parameters in vehicles respectively according to the operation parameter data of a large number of vehicles, obtaining the operation parameter data corresponding to various fault types according to the maintenance records of the vehicles, determining parameter status data corresponding to the operation parameter date according to the statistic models, for each fault type, establishing a statistic model of the corresponding operation parameter status data to obtain the fault model, obtaining the operation parameter data reported by the vehicles in real time, determining the parameter status data corresponding to the operation parameter data according to the statistic model, performing abnormal alarm when abnormal operation parameters exist, determining whether the vehicles are going to break down or break down according to the fault model, and performing fault early warning or alarm when the vehicles are going to break down or break down. The method and device achieve automatic diagnosis and early warning of the vehicle faults.

Description

technical field [0001] The invention relates to the technical field of vehicle safety, in particular to a vehicle fault diagnosis and early warning method and device. Background technique [0002] With the advancement of automobile technology, automobiles are developing towards electronization, especially the combination of automobile electronics technology, computer and network technology has brought fundamental changes to automobile electronics. At the same time, the electronicization of automobiles has also brought about major changes in fault diagnosis methods. The traditional inspection methods of seeing, hearing, and touching are used to read various electronic control units (Electronic Control Unit, ECU) of automobiles with various electronic diagnostic equipment. The data and the method of judging whether the car is working properly is replaced. [0003] The remote fault diagnosis system is a system that organically combines the fault diagnosis site, remote fault di...

AI Technical Summary

Problems solved by technology

In the expert system, it is necessary to establish a diagnostic knowledge base, which includes a large number of vehicle fault diagnosis resources, and its establishment process is relatively complicated

[0005] I

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