摘要
研究车辆驾驶仿真系统,为达到真实地仿真车辆运动的特性。针对车辆优化运行速度、加速度等性能,需建立实车动力与传动性能的数学模型。在构造了虚拟车辆数学模型框架基础上,根据柴油内燃机车辆动力与传动系统原理,采用曲线重建、数据拟合方法建立了实车运动学、动力学数学模型。通过驾驶仿真器的操作信号,用建立的内燃机、传动系统数学模型求解虚拟车辆运动及动力参数。将采集的实车运行特性数据与求出的虚拟车辆的数据进行了对比分析,结果证明内燃机、传动系统的数学模型与实车系统运动与动力性能的相似程度较高,利用建立系统为实际研究提供参考。
It is necessary to build the mathematics models of power and drivetrain system for vehicle driving simulator,so as to simulate the motion of vehicle really.Therefore,the layout of virtual vehicle model is structured.Based on the principle and relevant parameters of diesel engine and drivetrain system of real vehicle,the dynamics model of real vehicle is built using reconstruction of curves and data fitting.By the mathematics models of engine and drivetrain system,virtual vehicle＇s kinemics and dynamics parameter are solved according to the operation signals of simulator.Finally,the running characteristic data of real vehicle and virtual vehicle are compared,which shows that the math model is similar closely to real vehicle system.
出处
《计算机仿真》
CSCD
北大核心
2011年第3期353-356,共4页
Computer Simulation
关键词
柴油内燃机
传动系统
仿真
建模
Diesel engine
Drive train system
Simulation
Modeling
