Control Strategies of Electric Automotive Air Climate
Aiming at the disadvantages of poor comfort and high energy consumption in electric vehicle automatic air conditioning system,an intelligent control algorithm of automatic air conditioning based on fitting factor is proposed in this paper.The algorithm fits the target outlet temperature through the ambient temper-ature inside and outside the vehicle and the set temperature,determines the target evaporator temperature or target PTC temperature according to different outlet modes and air volume,adjusts the compressor speed or PTC power through P1D control strategy,controls the evaporator or warm air core temperature,and makes the temperature inside the vehicle quickly and smoothly within the temperature error range set by the user.The experimental results show that the air conditioning system with this intelligent control strategy has the charac-teristics of fast response speed and small steady-state error,and has strong practicability.
electric automobileautomatic air-conditioningfitting factorPID control