商用车控制系统计算误差的理论分析与试验验证

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中图分类号：U463.6 文献标识码：A 文章编号：1003-8639（2026）03-0110-03

Theoretical Analysis and Experimental Verification of Calculation Errors in Commercial Vehicle Control Systems

TongXiaoya,GuoJuntao,ZhangYixin,Hu Feifei,LiGengchen (Shanxi Heavy DutyAutomobile Co.,Ltd.,Automobile EngineeringResearch Institute,Xi'an7102Oo,China)

【Abstract】In the software development of commercial vehicle embedded control systems,calculation errors are a typical issue leading to functional abnormalities.Theirrootcauses are often associated withthe mismatch between timing designand hardware environment,as well as defects indataupdate logic.Taking thedriving range calculation in the commercial vehiclefluidlevellow-alarm systemasanexample,this paper theoreticallyanalyzes the generationmechanism of calculation errors and proposes anoptimized scheme for theefective timerange.Verified bysimulation and actual vehicletests,thisschemecan eliminatecalculationerorsandrestore thenormaloperationof thealarmlogic.Itprovides a theoretical reference and practical paradigm from problem analysis to scheme implementation for avoiding calculation errors inthe software developmentof similar embedded control systems,and helps improve the functionalreliabilityand calculation accuracy of embedded systems.

【Key words】embedded control software;calculation error; timing matching;driving range

0 引言

在商用车嵌入式控制系统软件开发中，计算误差并非单纯的数值精度偏差，而是涵盖时序误差、数据有效性误差、环境适配误差的综合性技术问题。（剩余4716字）