Fault processing method and fault processing system of hybrid electric car

A fault handling method and technology of hybrid electric vehicles, applied to hybrid electric vehicles, motor vehicles, control devices, etc., can solve problems such as simple fault management and incomplete fault handling strategies for the whole vehicle system, and achieve the elimination of potential safety hazards and fault handling The effect of complete method and prevention of loopholes

Active Publication Date: 2015-04-15
GUANGZHOU AUTOMOBILE GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the fault management of existing hybrid electric vehicles is too simple and there is no complete vehicle system fault processing strategy, the emb...

Method used

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  • Fault processing method and fault processing system of hybrid electric car
  • Fault processing method and fault processing system of hybrid electric car
  • Fault processing method and fault processing system of hybrid electric car

Examples

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Embodiment 1

[0031] This example will give a detailed explanation of the hybrid vehicle fault handling method. Such as figure 2 The flow chart shown and image 3 The schematic diagram of the fault handling process shown in the example, the hybrid electric vehicle fault handling method provided in this example, includes the following steps:

[0032] S1. Parts failure detection step: detecting the current fault type of each component of the hybrid vehicle, and determining the fault level of each component according to the fault type;

[0033] S2. Fault response arbitration step: according to the fault level of each component, map to obtain the fault response level of each component; determine the highest fault response level among the obtained fault response levels of each component as the final fault response level;

[0034] S3. Fault response processing step: perform corresponding fault processing according to the final fault response level.

[0035]In step S1, each component may have...

Embodiment 2

[0074] Such as Figure 8 As shown, corresponding to the fault processing method given in the above-mentioned embodiment 1, this example provides a hybrid electric vehicle fault processing system, and the fault processing system 100 includes the following modules:

[0075] The component failure detection module 1 is used to detect the current failure type of each component of the hybrid vehicle, and determine the failure level of each component according to the failure type.

[0076] Specifically, the component fault detection is performed by each component controller, and the component controller includes a vehicle controller and a sub-controller controlled by the vehicle controller;

[0077] The sub-controller of the hybrid electric vehicle can be used to detect hardware-related signals of corresponding components, etc., to obtain the type of fault that occurs currently, and set the fault level of the corresponding component according to the type of fault that occurs currentl...

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Abstract

In order to solve the problems of too simple fault management and unavailability of complete vehicle system fault processing strategies of the existing hybrid electric car, the embodiment of the invention provides a fault processing method and a fault processing system of a hybrid electric car. The fault processing method of the hybrid electric car comprises the following steps of detecting current fault types of various parts of the hybrid electric car, and determining fault levels of the parts according to the fault types; performing mapping to obtain fault response levels of the parts according to the fault levels of the parts; determining the highest fault response level of the fault response levels of the parts as the final fault response level; and carrying out corresponding fault processing according to the final fault response level. The fault processing method provided by the embodiment of the invention is more complete, vulnerability in vehicle control when faults occur can be effectively avoided, the potential safety hazard is eliminated, and vehicle dynamic control can be adjusted properly according to specific faults.

Description

technical field [0001] The invention relates to the field of hybrid electric vehicles, in particular to a fault processing method and a fault processing system for a hybrid electric vehicle. Background technique [0002] In order to ensure the absolute safety of HEV (full name in English: Hybrid Electric Vehicle, full name in Chinese: hybrid electric vehicle) after a fault occurs, the vehicle control software needs to respond appropriately to the fault state. Since the power system of hybrid electric vehicles is relatively complex, involving multiple power and safety-related components, and each component may report a variety of fault types, the fault response control of the whole vehicle is very complicated. [0003] The fault handling method of the existing hybrid electric vehicle generally includes the following steps: 1, real-time monitoring of fault information of the hybrid power system; 2, setting default input or output values ​​when the fault fails; 3, defining and ...

Claims

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Application Information

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IPC IPC(8): B60W50/02B60W20/00B60W20/50
CPCB60W50/0205B60W2050/022
Inventor 甘新华徐吉汉夏珩
Owner GUANGZHOU AUTOMOBILE GROUP CO LTD
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