自动变速器乘用车的高原标定试验方法

以装备液力变矩器的自动变速器乘用车为例,进行相关的高原标定试验,验证TCU在高原环境下的表现及整车对于高原环境的适应性,并根据实际情况进行必要的调整,以更好地适应高原地区的环境要求,并对不同环境下的换挡线进行对比。

搭载可变截面增压器的柴油机高原标定方法研究

对搭载可变截面增压器的电控柴油机在高原移动台架上进行了高原工作条件确定和优化标定试验,提出了针对不同转速区域的标定原则和方法,并用标定后的MAP控制发动机进行了台架性能试验。试验结果表明,经高原标定后的柴油机,可满足既定的机械限值要求和动力性要求,达到了试验目标期望。

4110国Ⅲ柴油机增压器高原适应性试验

本文分析了海拔高度对增压器和发动机性能、可靠性的影响,提出了增压器和柴油机高原标定需注意的事项和准备事项,并结合试验总结出了增压器和柴油机高原标定的要求和方法,最后针对满足国Ⅲ排放的4110柴油机选配增压器的两种方案进行了高原标定试验,结果表明,方案二的高原性能优于方案一。

Climatic Signals Recorded in Shells in Xingcuo Lake, Eastern Tibetan Plateau

This paper presents the results of determining trace elements and δ 13C, δ 18O in Gyraulus sibirica shell continuously preserved in Xingcuo Lake sediments in the recent 50 years. By coupling these indexes and instrumental meteorological data on its basin to determine the relations among them, we probed quantitatively the climatic signals recorded in Xingcuo Lake sediments. The results showed that gastropod shells in Xingcuo Lake were formed in warm seasons; that trace elements, and stable isotope in shells just recorded the climatic signals of the warm seasons instead of that of the whole year; that Mg/Ca ratio and δ 18O proxy had certain correlation with air temperature in warm seasons, when the δ 18O proxy was more sensitive; with the average ratio of them being 0.28×10 -3/℃ and the variation rate dδ 18O/dT being 1.64×10 -3/℃; that the Sr/Ca ratio and δ 13C proxy, especially Sr/Ca ratio, had close correlation; and that dSr/Ca/dP was -0.045/mm.