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Low cost design of the automotive air conditioning control system
Published:2017-05-03 author:ZHU Fugen1, XIONG Shusheng2, ZHOU Chao2, LI Wei3 Browse: 3385 Check PDF documents

Low cost design of the automotive air conditioning control system

ZHU Fugen1, XIONG Shusheng2, ZHOU Chao2, LI Wei3

(1.Automotive Institute, Zhejiang Institute of Communications, Hangzhou 311112, China;
2.College of Energy Engineering, Zhejiang University, Hangzhou 310027, China;
3.Hangzhou Yundong Intelligent Vehicle Technology Co., Ltd., Hangzhou 310011, China)


 

 

Abstract: In order to solve the problems of reducing the cost of automatic airconditioning system and the promotion and application in commercial vehicles and construction machinery, the embedded microcontroller technology was investigated to airconditioning control system. The work mechanism of automobile air conditioning refrigeration and heating was studied After feasibility the analysis of reducing the cost of main control chip of control system , the relationship between the working principle of the automobile air conditioning system and the hardware of the control system applied was established. A method was present that the discretization control algorithm was achieved through software implementation in low cost air conditioning control system. Control system hardware design was given based on STC12C5AS2 microcontroller. The response speed of the air conditioning system, the time of system startup and other technical indicators were subjectively evaluated on the test bench. The experimental results show that 8bit microcontrollers can not only reduce the hardware cost of airconditioning control system but also boot speed. And the requirement of users can be meet.

Key words: automobile airconditioner; control system; microcontroller

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