Design and Implementation of a Low-Energy-Consumption Air-Conditioning Control System for Smart Vehicle

摘要

About 7 of peoples daily time is spent in taking vehicles between office and home. Besides, with the improvement of the living standard in todays society, peoples requirements for a comfortable environment inside the car are constantly increasing and this must rely on an effective vehicle air conditioner to maintain the comfort of the cabin environment. In general, a vehicle air conditioner uses the air-mixing mode to regulate the temperature control system. In this mode of operation, the compressor needs to work continuously, which is extremely energy consuming. The vehicles air conditioner is greatly affected by the inner and outer heat load, which are generated therein. Furthermore, the heat load is instantly changeable. Therefore, only when the controller can adapt to the feature of heat load, then we can find the optimal control method, thus enabling the vehicles air conditioner to interact with the actual heat load to supply the balanced cooling capacity and, as a result, create the most comfortable environment inside the cabin with minimum energy consumption. For this purpose, we bring up in this paper a low-energy-consumption smart vehicle air-conditioning control system to detect total heat load, which can change the vehicles air-conditioning capacity mode to maintain the average temperature at 25.2C26.2C and the average humidity at 46.654.4 in the cabin. When the inner heat load is stable, the rest times of the compressor can reach 1623 times per hour, which attains a rate of fuel saving around 2128. With the proposed architecture, the purpose of the low-energy-consumption vehicle air-conditioning system can be achieved, which, at the same time, creates a comfortable environment inside the cabin.