汽车工程

汽车工程 ›› 2019, Vol. 41 ›› Issue (2): 121-125.doi: 10.19562/j.chinasae.qcgc.2019.02.001

• •    下一篇

电驱动机动平台发动机电动控制研究*

苏建强, 王志和   

  1. 内蒙古工业大学电力学院自动化系,呼和浩特 010051
  • 收稿日期:2018-01-03 出版日期:2019-02-25 发布日期:2019-02-25
  • 通讯作者: 苏建强,讲师,博士,E-mail:sujianqiang1983@163.com
  • 基金资助:
    国防科技创新工程项目(12050005)和内蒙古工业大学校基金(ZZ20815)资助

A Research on Engine Electric Control for Electric-drive Mobile Platform

Su Jianqiang, Wang Zhihe   

  1. Department of Automation, Institute of Electric Power, Inner Mongolia University of Technology, Hohhot 010051
  • Received:2018-01-03 Online:2019-02-25 Published:2019-02-25

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摘要： 为实现电驱动机动平台发动机齿杆位置的电动控制,设计以TI公司DSP2808为核心的步进电机控制系统,它通过控制步进电机驱动脉冲数实现对平台发动机油门开度的控制,并针对发动机转速闭环控制时步进电机振荡和发动机非线性等因素引起的发动机转速不稳定问题,提出了发动机转速模糊PI控制。实验表明步进电机脉冲响应快,发动机转速动态响应良好,发电机输出电压平稳,为电驱动机动平台提供可靠电能,满足了电驱动平台对发动机控制的要求。

关键词: 发动机, 步进电机, 模糊PI控制, 脉冲

Abstract: The stepper motor control system is designed with DSP 2808 of TI company as its core for fulfilling the electric control of engine fuel pump rack in electric-drive mobile platform. The system achieves the engine fuel rack control by controlling the driving-pulse number of stepper motor, and a fuzzy PI control for engine speed is proposed to tackle the problem of engine speed instability caused by stepper motor fluctuation and engine nonlinearity during engine speed closed-loop control. Experimental results show that the pulses of stepper motor respond swiftly, engine speed has a good dynamic response and the output voltage of generator is stable. These provide reliable electric energy for mobile platform, meeting its requirements on engine control

Key words: engine, stepper motor, fuzzy PI control, pulse