汽车开空调测评的状况模拟综述

Environment simulation parameters setting for the tests of LDV's AC system performance

配备了全光谱光照模拟装置的全环境模拟综合测试系统可以有效地测试评价汽车开空调时的排放、油耗以及汽车空调油耗。同时,环境仓主要参数值遴选适当数值,才能使车辆空调系统在测试里的反应动作具有代表性,反映出其在实际使用时道路的环境状况,美国SC03方法及AC17方法是两项成功的测试方法。我国正在编制的空调油耗测试方法也采取了"空调开启的油耗-空调关的油耗"的作法,编制工作中也考虑到了从统计我国的地理气候数据来生成适当的环境状况参数,并且已取得了多项共识和进展:实车测试结果显示该测试总体流程可行;测试结果有较佳的重复性;光照模拟是不可或缺的基本测试条件;而温度、湿度设定值应既能反映出我国的实际气候状况,也可兼顾到节能空调技术的原理特性,不宜偏颇。

A LDV's exhaust emission and fuel consumption while AC is on can be tested and evaluated with the aid of a chassis dynamometer cooperated with synthetics environment simulate test system including full spectrum facilities.Meanwhile,it's essential to assign several main parameters at proper settings,so as to make sure the activities of the AC system and the vehicle is representative to the real world,such as the drive cycle setting,temperature,humidity and solar load settings in US SC03 or AC17.A new standard in consolidating in China,Air condition Off-cycle technology energy saving effects evaluation method for passenger cars,has taken NEDC as the driving cycle and all the key parameters in it has taken into account of the climate conditions in China,too.Several acknowledgements have been reached in prior research and actual vehicles tests:the procedure is feasible and the result data repeatability is satisfactory,solar load simulation is indispensable in this evaluation method,while the temperature and humidity settings should be assign to values that are both accommodate to the technical features of advanced AC techniques and representative to the climate in China.