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| 汽油机怠速模糊-PID控制系统研究与分析 |
| Research and analysis on fuzzy-PID idle speed control system for a gasoline engine |
| 投稿时间：2016-09-23 |
| DOI：10.13259/j.cnki.eri.2019.01.008 |
| 中文关键词: 汽油机 模糊-PID 怠速转速 |
| 英文关键词:gasoline fuzzy-PID idle speed |
| 基金项目: |
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| 摘要点击次数: 5129 |
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| 中文摘要: |
| 为了进一步控制汽油机怠速转速波动，改善怠速控制品质，提出了怠速模糊-PID控制方法，并在Matlab/Simulink软件平台上，搭建了PID控制、模糊控制、模糊-PID三种怠速控制仿真模型，对比分析了各种怠速控制系统的控制响应特性。通过台架试验，对原机控制算法和所设计控制算法下发动机怠速转速进行了对比，验证了该算法的正确性。结果表明：模糊-PID控制系统可以显著缩小转速波动范围，且系统响应更快，载荷切换阶段的转速波动最大幅值小于30 r·min-1，稳态波动幅值在±15 r·min-1范围内；与PID控制、模糊控制两种控制方式相比，模糊-PID控制可显著提高怠速控制品质。 |
| 英文摘要: |
| In order to further improve the quality of idle speed control, a new fuzzy-PID control method was proposed to control the idle speed in this paper. Three idle speed control models including PID control, fuzzy control and fuzzy-PID control were built using Matlab/Simulink software. The response characteristics of three control systems were compared and analyzed. The validity of the new control algorithm was verified. The results showed that fuzzy-PID control system could significantly reduce the speed fluctuation with quick system responses. In the process of load switching, the maximum amplitude of speed fluctuation was less than 30 r·min-1. Under the steady state, the fluctuation amplitude was within ±15 r·min-1. Compared with the other two control models, the fuzzy-PID control system could significantly improve the quality of idle speed control. |
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