Fault detecting and processing method for hybrid vehicle

Abstract

The invention discloses a fault detecting and handling method for a hybrid vehicle and a fault detecting and handling system using the method. The technical proposal is as follows: the method adopts the intelligent control modules of the hybrid vehicle, wherein the intelligent control modules include a hybrid power control unit, an electrical control unit, a battery management system and an engine management system; the fault handling system of the hybrid power control unit is adopted as the fault handling decision center, and the fault handling units of the electrical control unit, the battery management system and the engine management system are adopted as the sub-systems; the decision center and the subsystems cooperate to detect and handle the fault. The system and the method are applicable in the control system of the vehicle (particularly hybrid vehicle) to enhance the fault detection and handling capability.

Description

technical field [0001] The invention relates to a fault detection and processing method, in particular to a method for detecting a fault in a hybrid electric vehicle, determining the nature and location of the fault, and processing the fault accordingly. Background technique [0002] As a new generation of clean and energy-saving vehicles, hybrid vehicles not only improve the driving performance of vehicles, but also give full play to the advantages of internal combustion engine vehicles and electric vehicles. They are low-emission and low-fuel consumption vehicles with the most practical development significance today. However, the control of hybrid electric vehicles is more complicated. Compared with ordinary vehicles, special safety control issues need to be considered. The main points are as follows: ①Start the engine when the power system is engaged; ②The engine stops or stalls unexpectedly; ③The engine starts unexpectedly; ④The engine Unable to restart; ⑤ Unexpected in...

AI Technical Summary

Problems solved by technology

In the prior art, there is no system for monitoring and processing the faults of various automobile systems, only a system that detects and alarms some partial faults in the automobile, and completes fault handling by manual intervention. The Chinese utility model with the patent number ZL02228885.6 The patent discloses such an integrated alarm controller for automobiles, which uses an integrated alarm controller to control the automatic detection circuit of the filament for automatic detection of automobile taillights, the seat belt reminder circuit, the door is not closed and the light is not closed alarm circuit

The use of this patent can improve the performance and practicability of the comprehensive alarm, and greatly reduce the accidents caused by the car, but the patent cannot solve the problem of fault detection and processing of various systems of the car

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