The Design of Based on AT89C52 Automotive Air Conditioning Control System

2014 ◽  
Vol 1079-1080 ◽  
pp. 1014-1017
Author(s):  
Chun Lin Wang
Keyword(s):  
Control System ◽  
Fuzzy Control ◽  
Air Conditioning ◽  
Modular Design ◽  
Design Method ◽  
Single Chip ◽  
Automotive Air Conditioning ◽  
Temperature Detection ◽  
Programming Process ◽  
Automobile Air Conditioning

This topic through to the automobile air conditioning working principle and the structure analysis of air conditioning assembly, with AT89C52 as the core of single-chip microcomputer control system is designed, and the controller hardware and part of the circuit design; To realize fuzzy control algorithm of the control system is established. Expounds how to realize the automation of automobile air conditioning system of fuzzy control; Temperature detection with high precision integrated temperature sensor MF51 implementation; Programming process, adopts the modular design method of each module respectively for programming, debugging, then connect them in accordance with the requirements of control, the debugging, analysis.

Design of Automobile-Reversing Radar Control System Based on Ultrasonic

2013 ◽  
Vol 457-458 ◽  
pp. 872-877
Author(s):  
Yan Xin Yu ◽  
Rong Chun Sun
Keyword(s):  
Control System ◽  
Software Design ◽  
Temperature Compensation ◽  
Modular Design ◽  
Design Method ◽  
Main Program ◽  
Single Chip ◽  
Compensation Circuit ◽  
Program Module ◽  
Function Modules

Based on the principle of ultrasonic transit time ranging, this article describes that the microcontroller is used as the core to develop the ultrasonic distance-measurement automobile-reversing radar control system. The system includes both hardware and software parts. The hardware part mainly consist single-chip control circuit, ultrasonic transmitting and receiving circuits, temperature compensation circuit and voice alarm circuit. The software design part of the system was divided into several function modules with modular design method, such as main program module, temperature measurement module, voice alarm module and so on. The main program was responsible for dispatching management all the modules. Experiments show that this system can reach design requirement and has high value and broad application prospects.

Design on Control System of Seedling Vegetable Harvester Based on Single Chip

2013 ◽  
Vol 721 ◽  
pp. 656-660
Author(s):  
Yi Guo ◽  
Song Dong ◽  
Su Bo Tian
Keyword(s):  
Control System ◽  
Performance Test ◽  
Modular Design ◽  
Design Method ◽  
Single Chip ◽  
Running System ◽  
Mode Of Operation ◽  
Photoelectric Sensor ◽  
Set Up ◽  
Transport Device

Based on STC89C52RC Single Chip microcontroller, the control system of seedling vegetable harvester was designed with the help of modular design method. According to the mode of operation for seedling vegetable harvester, the infrared remote device and photoelectric sensors were selected, and then the hardware of the control system including running system, cutting device and conveyor device was set up. Through the performance test of the prototype, the harvester can go forward, backward, accelerate, decelerate, turn left, and turn right; the photoelectric sensor can control cutting device and transport device to start and stop automatically and easily, which shows the control system has good performance.

Design of Front End Circuits in Cleaning Grain Loss Monitoring and Control System for Electric Combine Harvester

2011 ◽  
Vol 317-319 ◽  
pp. 1295-1299
Author(s):  
Xiao Juan Liu ◽  
Xin Bing Huang
Keyword(s):  
Control System ◽  
Modular Design ◽  
Design Method ◽  
Automatic Monitoring ◽  
Monitoring And Control ◽  
Single Chip ◽  
Monitoring And Control System ◽  
Combine Harvester ◽  
And Performance ◽  
And Control

This paper introduces the design of front circuit in cleaning grain loss monitoring and control system for a new electric combine harvester. This front circuit mainly includes signal conditioning circuits which are amplification circuit, anti-jamming circuit and filter circuit for transforming sensor output signal. 8031 single-chip is used as its core and implemented automatic monitoring of the cleaning grain loss. Owing to adopt the modular design method and mature technology, the circuit is powerful in function and easy to realize and has extensive value in use. The simulation results show that the effect is excellent and performance is stable.

Automotive Air Conditioning System Fuzzy Control Algorithm

2011 ◽  
Vol 181-182 ◽  
pp. 787-791
Author(s):  
Li Min Hou ◽  
Xing Xing
Keyword(s):  
Fuzzy Control ◽  
Energy Conservation ◽  
Human Body ◽  
Air Conditioning ◽  
Control Algorithm ◽  
Comfort Level ◽  
Automotive Air Conditioning ◽  
Control Principle ◽  
Fuzzy Control Algorithm ◽  
Control Output

The traditional PID algorithm control automotive air conditioning needs urgently to be improved in energy conservation effect and the human body comfort level. Uses the fuzzy control principle, to design fuzzy control algorithm to realize the automotive air conditioning's intelligent control, according to the temperature humidity from the temperature sensor and the humidity sensor , take the human body comfort as the foundation to carry on the fuzzy revision to the temperature in the compartment; According to the difference between the set temperature and the actual temperature, uses fuzzy control principle deduction to control the output; According to the outdoor temperature and the passenger full strength rate carries on the heat load fuzzy revision to the control output; or based on the situation of vehicle door shuts/opens, carries on the revision to the control output. Compares with the PID control, the energy conservation effect is about 15-20%.

The Study on Fuzzy Control of Automotive Clutch

2011 ◽  
Vol 230-232 ◽  
pp. 334-338
Author(s):  
Lei Zhang ◽  
Xiao Ming Zhang ◽  
Xiu Ming Yang ◽  
Yan Liu
Keyword(s):  
Control System ◽  
Fuzzy Control ◽  
Variable Parameter ◽  
Continuously Variable Transmission ◽  
Scale Model ◽  
Electronic Control ◽  
Single Chip ◽  
Driving Experience ◽  
Variable Transmission ◽  
Clutch Control

Due to the complexity of the car running condition, the differences of the subjective intention of the driver, and Continuously Variable Transmission control system itself existed nonlinear, time delay, interference, variable parameter factors, the traditional control arithmetic based on scale model is hard to meet the clutch control requirements. This article through to design the drive mechanism of the dry friction clutch on a new, without hydraulic pump, pure electronic control car continuously variable transmission, and analyze its mechanical properties and control target, the clutch control model was established, according to the fuzzy control theory, driving experience and developers’ technical experience, the corresponding fuzzy language rules were formed, and intelligent control of the clutch on the single-chip control system was realized. At present, the pure electronic control continuously variable transmission has been tested on the experimental bench and car operation, and has passed the inspection by the national vehicle quality supervision and inspection center (Chongqing) and the identification by China Machinery Industry Federation .

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