The Electronic Throttle PID Control System Based on Single Chip Microcomputer

Abstract:

With Bosch company DV - E5 type throttle as control object，the hardware and software of the control system has been designed based on PID control algorithm. System uses TT89C51 microcontroller as the main control unit, using LMD18200 chip to drive DC motor in the throttle, at the same time, using PCF8591 as the AD conversion chip, using LCD1602 to display the dynamic control parameters. The system control software has been written by C language, The main software modules have been simulated on Proteus, an PID control experimental platform of the electronic throttle has been built, Test and the experiments of the opening degree position control on the throttle have been completed, the experimental results show that the system step response time is about 300ms, the steady-state error is less than 1%, hysteresis and overshoot is not obvious.

• Periodical: Applied Mechanics and Materials (Volumes 631-632)
• Pages: 367-372
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.631-632.367
• Online since: September 2014
• Authors: Jun Li Wan*, Shi Run Cheng, Hao Liu
• Keywords: AT89C51 Microprocessor, Electronic Throttle, PID Control

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