An optimization method for electric vehicle operation and maintenance based on safety tree model

Abstract

The invention relates to an electric vehicle operation and maintenance optimization method based on a safety tree model, which includes: S1. Constructing a safety tree; S2. Sorting the safety importance of each underlying event based on the safety tree; S3. Determining the safety of the electric vehicle. Whether the safety status has reached the threshold, if so, perform step S4, otherwise continue the evaluation; S4. Check and troubleshoot the branches with high safety importance in the safety tree, and then return to step S3. Implementing the electric vehicle operation and maintenance optimization method based on the safety tree model of the present invention can conduct real-time, accurate, and digital assessment of the safety of electric vehicles whose safety performance changes during actual operation, thereby making it possible to evaluate the safety of electric vehicles according to the safety tree module. , integrating various safety fault states to provide a timed and quantitative description of the safety state of electric vehicles, thereby providing guidance for the manufacturing, repair, operation and maintenance of electric vehicles, thereby improving the safety of electric vehicles.

Description

technical field [0001] The invention relates to transportation tools, and more specifically, to an electric vehicle operation and maintenance optimization method based on a safety tree model. Background technique [0002] With the rapid development of the world economy and the emphasis on environmental protection awareness, the penetration rate of automobiles is getting higher and higher. At the same time, the requirements for automobile exhaust emissions are also getting higher and higher. Energy-saving, safe, and pollution-free electric vehicles are the future development trend. However, electric vehicles generally have an electrical system of up to hundreds of volts, which exceeds the safe voltage range of DC. If reasonable design and protection are not carried out, it may cause high-voltage safety problems such as electric shock to personnel. In addition, electric vehicles include multiple component departments such as steering systems, braking systems, and safety contro...

AI Technical Summary

Problems solved by technology

The failure or failure of any component may cause the loss of control or failure of the entire vehicle, resulting in danger to the driver or passengers

However, there is still a lack of electric vehicle safety management and control methods that can systematically and effectively combine theoretical analysis and engineering experience; and there is a lack of methods to quantitatively describe the safety state of electric vehicles and accurately reflect the safety characteristics of each system.

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