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发动机电子节气门控制的嵌入式软件设计

发表时间:2017-07-31  浏览量:44  下载量:5
全部作者: 李宏超,滕勤
作者单位: 合肥工业大学汽车与交通工程学院
摘 要: 为克服电子节气门中复位弹簧和摩擦非线性的影响,采用前馈补偿与闭环校正相结合的控制算法,设计电子节气门控制(electronic throttle control,ETC)的嵌入式软件。利用不同幅值和方向的阶跃响应和斜坡响应实验对所设计的控制策略进行验证,基于上升时间、调整时间、稳态误差和最大超调4个指标对结果进行评价和比较。结果表明,非线性补偿后较补偿前提高了系统的响应速度和控制精度;目标位置斜坡变化消除了系统的超调,验证了目标位置滤波与限制的必要性和可行性。
关 键 词: 车辆工程;电子节气门控制;嵌入式软件设计;非线性补偿
Title: Embedded software design of electronic throttle control in engine
Author: LI Hongchao, TENG Qin
Organization: School of Automobile and Traffic Engineering, Hefei University of Technology
Abstract: In order to overcome the nonlinear influence of the return spring and friction in the electronic throttle, the embedded software of electronic throttle control (ETC) system was designed based on a combinational algorithm of feedforward compensation and closed loop correction. The control strategy was verified by step response and slope response experiments with different amplitudes and directions. The results were evaluated and compared based on the rise time, settle time, steady-state error and maximum overshoot. The results showed that the system with nonlinear compensation improved the response speed and control precision, compared to the system without nonlinear compensation. The overshoot was eliminated by slope change of desired position, which verified the necessity and feasibility of the desired position filtering and rate limiting.
Key words: vehicle engineering; electronic throttle control; embedded software design; nonlinear compensation
发表期数: 2017年7月第14期
引用格式: 李宏超,滕勤. 发动机电子节气门控制的嵌入式软件设计[J]. 中国科技论文在线精品论文,2017,10(14):1610-1620.
 
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