整车阳光模拟试验光强均匀度校准方法研究

李双　金秀英　金嘉欣

摘要：随着自主品牌乘用车研发投入逐年增加，合资品牌国产化深入，整车阳光模拟试验由于可模拟车辆实际使用的强光环境和高温状态来验证和改善车辆的耐候性能，且具有试验周期短的优势，在车辆研发阶段的应用越来越广泛。相较于自然暴晒，整车阳光模拟试验的另一个优势就是复现性、一致性强，这主要归因于整车阳光模拟试验的核心——光照强度均匀度校准，该工作克服了试验灯具非一致性，保证了有效照射区域在规定的光照强度的照射下进行试验，保证了多次试验的条件偏差在标准允许范围内。本文就光强均匀度测量及调整方法进行相关研究讨论。

关键词：整车阳光模拟  光强均匀度  T/CSAE 70  自动测量系统  模拟结果

Light Irradiation Uniformity Adusting Method Research of

Overall Vehicle Solar Simulation Test

LI Shuang  JIN Xiuying  JIN Jiaxin

（CATARC Automotive Test Center （Tianjin） Co.，Ltd.，Tianjin， 300300 China）

With the increasing investment in research and development of independent brands of passenger cars and the localization of joint venture brands， the overall vehicle solar simulation environment test can simulate the strong light environment and high temperature of vehicles in actual use conditions to verify and improve the weatherability. Furthermore， the test has short cycle period therefore is more and more widely used in the vehicle research phase. Compared with natural exposure， another advantage of overall vehicle solar simulation environment test is the strong reproducibility and consistency， which is mainly attributed to the calibration of light irradiation uniformity， the core of vehicle sunlight simulation test. The work overcomes the inconsistency of test lamps and ensures that all positions of vehicle are tested under the illumination of the standard light intensity and the condition deviation of multiple tests is within the allowable range of the standard. In this paper， the measurement and adjustment method of intensity uniformity are discussed.

隨着自主品牌乘用车研发投入逐年增加，合资品牌国产化深入，全光谱阳光模拟试验相比整车自然暴晒具有开发周期短、试验条件可控的优点，在整车及零部件研发过程中可起到重要的验证作用。全光谱阳光模拟试验作为一种接近真实气候条件的加速老化试验，克服了试验灯具的非一致性，保证了有效照射区域在规定的光照强度的照射下进行试验，保证了多次试验的条件偏差在标准允许范围内。

光强均匀度校准工作是在整车阳光模拟试验开始前进行，在测得一组基准面光强数据后，工程师根据结果对光照系统进行调整，重复多次测量调整直至满足标准要求。……