Big data-based brake-by-wire redundancy control method and system

Through big data analysis and simulation technology, historical fault data of the wifi system is obtained, fault propagation matrix is constructed, failure probability is calculated, candidate switching paths are generated and digital twin simulation is carried out, which solves the problem of low redundant control efficiency of the wifi system under complex operating conditions, and realizes efficient and reliable switching control.

CN120428678AActive Publication Date: 2025-08-05ZHEJIANG JUCHUANG PRECISION MFG CO LTD
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Patent Information

Application Number
CN202510626763.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-15
Publication Date
2025-08-05
Estimated Expiration
2045-05-15

AI Technical Summary

Technical Problem

The redundant control switching efficiency of existing wire-controlled driving systems is not high in complex operating conditions, and the static threshold cannot adapt to instantaneous fluctuations in load, resulting in false triggering or delayed switching. The fixed path does not consider resource occupation, resulting in the extended switching time.

Method used

By obtaining historical fault data of the wi-fi control system, preprocessing and clustering analysis, building a fault propagation matrix, using Monte Carlo simulation to calculate the failure probability, generating multiple candidate switching paths, and simulating the switching process through digital twin simulation, calculating the comprehensive performance score, and selecting the best path for switching control.

Benefits of technology

The switching efficiency and reliability of the wireless control system in complex operating conditions is improved, the switching delay caused by resource occupation is avoided, and dynamic and accurate redundant control is achieved.

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Abstract

The invention discloses a brake-by-wire redundancy control method and system based on big data, and the method comprises the steps: obtaining historical fault data of a brake-by-wire system, carrying out the preprocessing of the historical fault data into standard fault data, carrying out the clustering analysis, extracting the position of a fault part, and determining a weak position set of the system; constructing an initial fault propagation matrix according to the weak position set, and calculating the system failure contribution degree of each fault component to update the matrix; using Monte Carlo simulation to form a failure probability data set based on the updated matrix; generating a plurality of candidate switching paths for the scene with the failure probability higher than a preset threshold value, and simulating the candidate switching paths through digital twin simulation to obtain actual switching time delay and success probability; and calculating the comprehensive performance score of each path according to the simulation result, sorting according to the scores, and selecting the path with the highest score for switching control when the running load state of the fault component exceeds a preset threshold value. According to the invention, the redundancy control switching efficiency of the drive-by-wire system under a complex working condition is improved.
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Citation Information

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