基于微分方程的汽车纵向动力学建模与行驶阻力特性分析

中图分类号：U461.1 文献标识码：A 文章编号：1003-8639（2026）01-0108-03

Modeling ofLongitudinal Dynamics of Automobilesand Analysis ofDriving Resistance Characteristics Based on Differential Equations

Zhang Qiannan (Shangqiu Institute of Technology, Shangqiu 476Ooo, China)

【Abstract】Differential equations,as mathematical tools for describing dynamic systems,are widely used in automotiveengineering andcanefectively characterizethetime-varyingandnonlinear characteristicsof vehicle motion. Drivingresistanceisakeyfactorafecting vehicleperformance,includingrollingresistance,airresistance,hillresistance andaccelerationresistance.Researchonitscharacteristicscanenhance theoveralldesignlevelofautomobiles,mprove fuel utilization eficiency and ensure driving safety.Basedon this,this paper first expounds the theoretical basis of automotivelongitudinal dynamics,then constructs an automotive longitudinal dynamics model basedon differential equations,and finally analyzes itsdriving resistance characteristics,providing areference for related research.

【Key words】longitudinal dynamics of automobiles；differential equation;driving resistance;characteristic analysis

0 引言

汽车纵向动力学主要研究车辆行驶方向上的运动状态及影响因素，涵盖驱动力、制动力与各类阻力的相互作用。（剩余5162字）