【摘 要】
：
When the hybrid cars driving in the crowded city,frequent starting of the engine is inevitable and the driving performance in engine starting process is t-he key indicator of the customers evaluation
【机 构】
：
Northeast Dianli University,School of Energy and Power Engineering;FAW R&D Center,Vehicle Performanc
论文部分内容阅读
When the hybrid cars driving in the crowded city,frequent starting of the engine is inevitable and the driving performance in engine starting process is t-he key indicator of the customers evaluation of the vehicle.In this paper,a systematic analysis of the engine starting process is carried out for a P2 configuration hybrid electric vehicle.Based on the above theoretical research,a kind of evaluation method is developed,which can be objective and reproducible to evaluate the driving performance of vehicle during the engine starting process.Based on this method,the test is carried out on the powertrain testbed.The test results show that the method is correct.It is the key way to evaluate the driving performance of engine starting process,and it is also an important basis for the selection of the engine starting strategy.
其他文献
惯容、弹簧、阻尼三元件并联的悬架结构形式简单,在可行性和可靠性等方面拥有巨大优势.通过时域和频域的动力学分析,说明惯容器的加入,使车体加速度有明显降低,尤其在恶劣的路面条件下,对舒适性的改善效果更加明显.
Vacuum brazing of EGR cooler with BNi-5 and Ni685 brazing filler metal is investigated.The result shows that the brazing seams have good appearance quality with new developed brazing filler Ni685.The
油气弹簧由于其无可比拟的优越性能,具有非常广阔的应用前景.密封件是油气弹簧的关重部件,其耐久性直接决定了油气弹簧的性能.本文基于理论分析,结合大量工程实践经验,从密封润滑性、温域适应性和油液相容性三个方面分析了造成油气弹簧密封故障的原因,总结了油气弹簧组合密封设计与选型的准则.
Application status of life cycle assessment(LCA)method in Chinese automotive industries is reviewed.A questionnaire that includessome key issues on LCA application in China was sent to some OEMs,suppl
本文主要介绍了重型车整车的NOx排放试验方法,并结合DB11965-2013《车载法》标准详细阐述了NOx数据判定方法的具体使用要求.通过试验得出不同车型的整车NOx的排放水平差异较大,并从发动机、行驶工况、后处理器等方面分析了整车的NOx排放特性.
本文采用溶胶凝胶法制备了多种钙钛矿类复合金属氧化物,并采用XRD、SEM、EDX以及TG对其结构、形貌、组成以及催化性能进行了表征.XRD和EDX测试结果表明,合成的物质以类钙钛矿型金属氧化物结构存在;SEM表明,合成的材料微观尺寸在纳米级;TG实验表明,La0.8Sr0.2Cu0.16Fe0.84O3复合氧化物对模拟炭烟燃烧具有最大催化活性,甚至高于贵金属Rh掺杂的La0.7Sr0.3Fe0.7
在严格的排放法规下,选择性催化反应(Selective Catalytic Reduction,SCR)已经成为减少柴油机NOX排放的标准方法.尿素-水溶液的喷射以及与混合器表面和发动机尾气的相互作用控制着氨气的均匀性及边界和混合器表面结晶的生成,这些都影响着SCR的性能和生命周期.计算流体力学(Computational fluid dynamics,CFD)被用来研究一款匹配重型柴油机的含有双
本文旨在研究非道路柴油机进行DPF匹配的策略.参考不同非道路机械保有量占比,选取6台典型非道路机械,使用温度和压力数据采集系统监测六台机械的排气温度和背压,以背压作为DPF再生始点选取的标准,以排气温度作为选择DPF再生方式的依据,为不同的非道路机械选取适宜的DPF系统.之后借助NanoMet3检测DPF前后颗粒物数量,实验工况不仅包括全工况,同时也关注了非道路机械所特有的高低怠速工况,对比分析数
In this paper,we confirmed the connection between the battery units in power battery system by quoting the reliability theory,and studied whether subjects conform to the reliability model theory by co
本文针对采用行星齿轮排作为动力耦合机构的多模混合动力汽车,分析了所有双行星齿轮排构型方案的可能拥有组合形式.通过所提出的模型自构法与穷举搜索的方法,建立了所有可行构型的动力学模型,并以此为基础,提出了一整套快速高效的构型方案优化设计方法.将该方法用于某混合动力电动客车的优化,得到了一组具有更出色燃油经济性与加速性能的构型方案.