Idle speed control for automobile modeling and simulation design approach
Idle speed control for automobile modeling and simulation design approach
复制标题
汽车怠速控制建模与仿真设计方法
DOI：
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发表时间：
1982
期刊：
影响因子：
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通讯作者：
C. Folkerts
中科院分区：
文献类型：
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作者：
R. Fruechte;F. E. Coates;C. Folkerts
汽车的怠速控制有两个功能：它减少了由于附件负载使用的变化而引起的怠速时发动机转速的变化，并且它允许降低怠速，从而提高燃料经济性。本文介绍了一种设计怠速控制系统的建模和仿真方法。首先建立了发动机怠速动态特性的数学模型。一些简单的车载测试进行了描述，并推导出相关的方程，以允许模型参数的估计。借助于计算机仿真，开发了基于PID控制器概念的非线性控制算法。最后，仿真和实车试验结果的比较，证明了该方法的有效性。
Idle speed control for automobiles performs two functions: it reduces the variation of engine speed at idle due to changes in accessory load usage and it allows a lowered idle speed giving a fuel economy improvement. This paper describes a modeling and simulation approach to designing an idle-speed control system. A mathematical model characterizing the dynamic behavior of an engine at idle is first formulated. A number of simple on-vehicle tests are described and associated equations are derived to allow estimation of the model parameters. With the aid of a computer simulation, a nonlinear control algorithm based upon the PID controller concept was developed. Finally, simulation and vehicle test results are compared to demonstrate the validity of this approach.