Matrix solar irradiation simulation experiment system for vehicle thermal comfort study

Abstract

The invention relates to a matrix solar irradiation simulation experiment system for the vehicle thermal comfort study. The system comprises a PLC, an intermediate relay, an alternating current contactor, an air switch, a thermal relay, a power source, a matrix lamp array arranged on an experiment vehicle roof, and an illumination energy density sensor arranged on the surface of an experiment vehicle. The input end of the alternating current contactor is connected with the output end of the air switch and the output end of the intermediate relay. The output end of the alternating current contactor is electrically connected with the matrix lamp array through the thermal relay. The input end of the air switch is electrically connected with the power source. The input end of the intermediate relay is connected with the output end of the PLC. The input end of the PLC is electrically connected with the illumination energy density sensor. The spectrum matching degree of a simulator is improved, the illumination energy density range is widened, and meanwhile the experiment requirements of large, medium and small vehicles are met in the manner of simple operation.

Description

technical field [0001] The invention relates to the technical field of the correlation between the thermal effect of a vehicle cabin and sunlight and the control of the cabin micro-environment, in particular to a matrix solar radiation simulation experiment system for vehicle thermal comfort research. Background technique [0002] In summer, when the vehicle is exposed to the sun, the car body will absorb the energy of the sun's rays, resulting in high temperature in the cabin, and the cabin microenvironment is relatively harsh. The high temperature in the cabin directly affects the physiological condition and work efficiency of the operators, leading to a decrease in ride comfort and even causing traffic accidents. Reports of sudden death of drivers and children being mistakenly locked in cars due to high temperature inside the car every year are not uncommon. For military combat vehicles, the temperature rise caused by solar radiation will also increase the probability of...

AI Technical Summary

Problems solved by technology

[0004] In terms of the automobile industry, the solar radiation simulator currently used in China mainly uses halogen lamps and infrared lamps as light sources, and its spectrum has a certain deviation compared with natural light. The thermal effect is mainly used to evaluate the performance of the vehicle air conditioner, without considering the actual energy absorbed by the surface of the experimental vehicle under natural light conditions, so it is quite different from the changes in the cabin microenvironment caused by natural light

The controllable range of sunlight energy density simulated by halogen lamp is 600~1000W / m 2 , can not cover my country's 200 ~ 1200W / m 2 range of natural light

And most of the simulators are only designed to illuminate the top of the car body, failing to take into account the thermal effect caused by direct sunlight on the side wall of the car body; some use electro-hydraulic servo-driven rotatable light arrays in order to simulate different incident angles of sunlight. Although the degree of automation is high, the structure is more complex and the project cost is higher

[0005] In the field of aviation, a light environment simulation experiment system developed by a research institute is mainly used to simulate the visual impact of sunlight on pilots when they observe in the air. ) function

[0006] In the field of solar cell research, in order to ensure high spectral matching, illumination uniformity and illumination stability, most solar simulators in this industry use a single xenon lamp or a combination of a xenon lamp and a halogen lamp. It is suitable for the test and research of small experimental pieces such as solar panel samples, and cannot be used for large-scale engineering experiments

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