关键词: 空调系统；虚拟标定；成熟度；标定周期

Abstract: The control calibration of air-conditioning systems is typically conducted during realvehicle testing phases, spanning spring (or autumn), summer, and winter, with a calibration cycle as long as 10 months, significantly impacting the vehicle's launch timeline. To shorten the airconditioning system calibration cycle while ensuring vehicle quality, this paper introduces a digital twin-based virtual calibration technology for air-conditioning, which replaces real-vehicle calibration. The real-vehicle test under a single operating condition takes 5 000 s, while the virtual calibration only requires 400 s, making the virtual simulation speed more than ten times faster than real-vehicle testing. During the project development phase, the control calibration of the entire vehicle's airconditioning system can be achieved, allowing for early functional testing of the air-conditioning system, improving the maturity of the air-conditioning system control, significantly reducing the real-vehicle calibration cycle, and enhancing product competitiveness.

Key words: air conditioning system; virtual calibration; grade of maturity; calibration cycle