中国典型城市车辆行驶特征研究

来源 :第19届亚太汽车工程年会暨2017中国汽车工程学会年会 | 被引量 : 0次 | 上传用户:bright_wish
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
在中国15个典型城市分别各自选取了30辆私家车,通过自由驾驶的方式采集车辆行驶数据.从总体分析车辆行驶的里程、速度、出行时间分布及怠速比例等行驶特征;同时,对京津冀之间的行驶特征差异进行了比较.研究表明,中国一线城市的出行状况在平均车速、道路通畅程度等方面明显不如二三线城市,大型城市的交通状况有待改善.另外,研究成果可为节能减排政策的制定以及车企技术发展方向的确立提供参考.
其他文献
This paper based on a two-speed electric vehicle transmission, through theoretical calculation and dynamic simulation, studied the synchronizer shift performance. First, created a Motor-2AMT mechanica
In recent and emerging technological developments, powertrain were mostly accompanied with electronics for efficient and precise control of powertrain system. Agricultural tractors are of no exception
As one of the most essential elements of Dual Clutch Transmission vehicle, the wet clutch plays a crucial role during the vehicle operating processes. In this investigation, concerning the thermal pro
Because of the submarining modifier and the severe injuries of chest and neck, a vehicles rear seat occupant only got a score of 0. 04 points in the full width frontal rigid barrier crash test(FRB)bas
The severity of the whiplash injury is highly valued, NCAP assessment program all over the world have been included whiplash test. In China, CNCAP added whiplash test in 2012, and has been upgraded tw
建立基于VGT的二级可调增压柴油机高海拔工作过程仿真模型,研究了不同海拔、不同工况下VGT叶片调节特性,并通过优化,得到了VGT叶片开度最佳MAP,在此基础上,进行了二级可调增压系统与柴油机不同海拔匹配性能研究.结果表明:高、低压级增压器与柴油机匹配效果较好,在海拔5500m,除怠速工况外,其余各工况的工作点均处于压气机高效率区.与单级增压柴油机相比,二级可调增压系统总压比随海拔的升高而增大,在海
在一台GDI发动机上进行油品升级试验,研究油品升级前后不同油品对GDI发动机燃烧和排放的影响.研究结果表明,由国四标准的97号汽油升级为国五标准的98号汽油,对于压缩比为9.6的GDI发动机来说,燃烧持续期延长,缸压峰值降低,放热率峰值减小.但油品升级有助于降低GDI发动机的排放特性,98号汽油比97号汽油CO排放降低,HC排放降低,NO的排放平均降低4.9%,微粒排放总数量浓度降低.
As a new type of fuel additive based on nitroparaffin, MAZ has received worldwide attention. An experimental study was conducted with the aim of developing an understanding of the MAZ fuel additives e
The present rate of economic growth is unsustainable without saving of natural energy. Thus, mankind will soon have to rely on alternate renewable energy sources. Also, suitable waste management strat
In recent years, with the fast development of independent technology on heavy-duty diesel engine design and produc- tion, China engine OEM industry has a strong willing for tailor-made china heavy-dut