Remote fault diagnosis method and system for new energy vehicle

Abstract

The invention relates to a remote fault diagnosis method and system for a new energy vehicle. Specific data at the fault occurring moment are collected, packed, uploaded and analyzed so as to solve the problems of unclear fault positioning and low positioning efficiency in the prior art; and by pushing fault suggestions and maintenance sites, the problem that the new energy vehicle cannot feed vehicle faults and a maintenance scheme back to a user in time is solved. The remote fault diagnosis method for the new energy vehicle comprises the steps that all controllers carried on the vehicle conduct fault self-diagnosis and send fault information to a vehicle-mounted terminal when the faults of the vehicle are diagnosed; the vehicle-mounted terminal extracts and stores fault data according tothe fault information, and the fault information, the fault data and vehicle information are packed and uploaded to a network communication server; and the network communication server conducts faultdiagnosis according to a pre-stored fault knowledge base and a received package file; and the network communication server transmits a fault diagnosis result to a mobile terminal pre-establishing communication with the network communication server.

Description

technical field [0001] The invention relates to the field of fault diagnosis of new energy vehicles, in particular to a method and system for remote fault diagnosis of new energy vehicles. Background technique [0002] With the increasing environmental pollution and energy crisis, more and more people choose new energy vehicles as a travel tool because they use clean energy, reduce pollution emissions, and conform to the concept of green travel. Because new energy vehicles are still in the development stage, the probability of failure is much higher than that of traditional fossil fuel vehicles. [0003] The existing new energy on-board diagnostic system has fault diagnosis and alarm prompt functions. The on-board automatic diagnosis system detects according to the set program. When a fault is detected, the fault light will be used to prompt the car to have a fault, and the fault code will be stored in the memory. Maintenance personnel need to use diagnostic equipment to r...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new energy vehicle remote fault diagnosis method and system to solve the problem in the prior art that new energy vehicles cannot timely feed back vehicle faults and maintenance solutions to users

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