设计和实施线性主动干扰排斥控制基于位置伺服控制系统的排气气体循环再循环的电机的设计和实施
Xin Cheng1,2, Jianzhong Yin2, Xiaokang Li2
1School of Information Engineering, Wuhan University of Technology, Wuhan 430070, China.
Sensors (Basel, Switzerland)
|March 13, 2024
概括
本研究引入了一种使用线性活性干扰排斥控制 (LADRC) 的新伺服控制系统,用于废气循环回流 (EGR) 门. 该系统通过提高门定位精度和响应时间来提高发动机燃油经济性并减少排放.
科学领域:
- 汽车工程 汽车工程
- 控制系统 控制系统
- 机械工程 机械工程
背景情况:
- 精确控制废气循环 (EGR) 门对于优化发动机性能和减少排放至关重要.
- 电机 (EM) 门在精确定位方面面临挑战,原因是动态工厂变化和外部干扰.
研究的目的:
- 设计一个强大的伺服控制系统,用于由有限角度扭矩电机 (LATM) 驱动的EGR EM门.
- 为了应对缓慢变化的动态和EGR门控制中不确定的干扰所带来的挑战.
主要方法:
- 开发了LATM驱动的EGR门系统的动态模型.
- 实施线性主动干扰排斥控制 (LADRC) 以估计和补偿总干扰 (模型不确定性和外部因素),使用扩展状态观察员 (ESO).
- 采用非接触式磁角度测量和高速数字通信,用于闭环控制.
主要成果:
- 实现了全冲程门控制精度超过0.05毫米,响应时间低于100毫秒.
- 证明了对冲击类型外部干扰的强度.
- 具有出色的空气流控制能力,可重复率在5%以内,标准偏差<0.2 m3/h.
结论:
- 拟议的基于LADRC的伺服控制系统有效地确保了EGR EM门的精度和实时性能.
- 该系统在门定位精度,响应速度和稳定性方面提供了显著的改进,有助于提高发动机效率和排放控制.
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