ct2发动机排放控制技术emission and control technology alternative fuel2017apac iee

1、中国工况典型城市轻型车行驶特征研究Research on Light duty Driving Features ofTypical Cities人：Speaker：WANG YANG中国汽车技术研究中心（）China Automotive Technology & Research Center（Tianjin）中国工况研究目标PROJECT TARGETS2015年，工信部四部委共同委托中国汽车技术研究中心开展为年的“中国工况”研究和开发，50余家高校、研究机构、企业的千余名技术参与。China Automotive Testing cycle (CATC) program was

2、 issued by the MIIT of China and China Automobile Technology & Research Center has been leading the 3-yrs program with hundreds of researchers from 50+Univ./Ins./OEM.1. 开发能耗/排放检测工况Development of driving cycle for the consumption/emission standardØ开发以及典型区域的轻型、重型汽车工况National/regional CLTC (li

3、ght-duty) and CHTC (heavy-duty), including the new energy types.2. 修订基于新工况的汽车能耗/排放测试标准 Revise of the FC/emission standards based on the new CATC (Draft)ØØ测试规程研究与评价 Research and evaluation of the test procedure制修订测试程序文本 Write and revise the draft中国工况整体概况DATA COLLECTION OVERVIEW1、项目分三期先后在41个

4、城市组建车队，与50余家企业、研究机构和高校签署了合作协议，参与项目的科研达到了1000。The project established fleets of vehicle in 41 cities of China. Over 50 enterprises,research institutes and universities with over 1000 people have taken part in this project.2、截至9月初，个不同车型。车辆规模达5700余辆，已经实现了一年的数据稳定，涵盖约400Up to Sep., the scale of data coll

5、ection vehicles has been to 4600 of about 400 differenttypes，which has been maintain for one year.3、截至9月初，里程共3400万公里，每天约10万公里，轻型车约2100万公里，重型车约1300万公里，新能源车400万公里。Up to Sep., theage of vehicles has been to 34 million kilometers, in which light-dutyvehicles accounts for 21 million kilometers and heavy-

6、duty ones 13 million kilometers.覆盖城市覆盖车辆总里程数据容量参与参与机构41个5700辆3400万公里6T1000人50家北京市采集数据覆盖情况中国工况41个数据采集城市中国工况车队整体FLEET CONSTITUTIONHeavy duty vehicleNew energy vehicleLight duty vehicleConventional vehicleTaxiOfficialcarIntercity busBusPrivate carHeavy duty trackSpecial-used vehicle重型车车辆用途比例轻型车车辆用途比例传统

7、车与新能源车比例轻型车与重型车比例中国工况数据特征DATA FEATURE各城市工况特征Cycle Feature数据的平均车速为26.5km/h，平均怠速比例为Ø 中国工况22%；The average velocity of whole light duties is 26.5km/h and theaverage of idle percentage is 22%.Ø 各城市的平均速度和怠速比例差异明显，并且平均速度低的城市怠速比例未必高。例如重庆，贵阳；The average of velocity and idle in every city appear a d

8、ifferent feature. Several cities appear low average velocity but also with a low idle percentage.Ø 低速区间的怠速比例最高，随着速度的增大，怠速比例逐渐降低。The idle percentage in low-velocity region appears thehighest, which becomes lower with the higher velocity.平均速度（km/h）怠速比例中国工况数据特征DATA FEATURE不同数据源比较Comparison of Vari

9、ous Source无论是在各城市的平均车速比较，还是在综合平均车速比较，中国工况与它们都较为接近，反映了CATC符合中国实际。Whether comparison with average velocity of each city or nationwide comprehensive average velocity, the data of CATC are all close to anyother data source.平均速度（km/h）平均速度（km/h）北京成都 大连 广州 哈尔滨海口合肥济南廊坊南昌 南京 南宁 青岛 厦门 上海 沈阳 石家庄芜湖西安襄阳长春长沙镇江郑州重

10、庆株洲中国工况数据特征DATA FEATURE速度片段特征Short Trip FeatureØ 各城市的运动片段时长和怠速片段时长有一定差异。The duration of running short trips differs from that of idle short trips .Ø 不同速度区间的怠速时长较为接近，运动时长差异明显，总体运动时长介于低速时长和中速时长之间。The duration of idle short trips in different velocity regions is close to each other, but that

11、of running short trips differs obviously from each other. The total running-trip duration situate between low-velocity and middle-velocity trip duration.Ø 平均运动片段时长不足2分钟。The duration of average running shop trip is less than 2minutes.时间（s）中国工况数据特征DATA FEATURE月度数据特征Monthly DataFeature各月份平均速度各月份怠速

12、比例各月份运动片段时长平均速度（km/h）时间（s）比例（%）中国工况数据特征DATA FEATURE季节数据特征Seasonal DataFeature各季节平均速度各季节怠速比例各季节运动片段时长平均速度（km/h）时间（s）比例（%）中国工况数据特征DATA FEATURE分车型特征Different TypeFeature两类车型速度段比例两类车型速度度两类车型速度分布两类车型度分布比例（%）速度（km/h）比例（%）<-3.5-3.5_ -3-3_-2.5-2.5_-2-2_-1.5-1.5_-1 1_-0.5-0.5_0 0_0.50.5_11_1.51.5_22_2.52.

13、5_33_3.5>3.5度（m/s2）中国工况数据特征DATA FEATURE分车型特征Different TypeFeature两类车型速度特征两类车型度特征两类车型速度分布两类车型速度段特征速度（km/h）速度（km/h）度（m/s2）比例（%）乘用车轻型车20151050乘用车轻型车中国工况车辆活动特征INVESTIGATION OF VEHICLE ACTIVITY FEATURES速度特征Velocity Feature总体平均出行时速集中在30-40km/h范围内，这个结果略高于的平均速度值。The average velocity of investigation dist

14、ributebetween 30-40km/h, which is a little larger thanthat of CATC.比例中国工况车辆活动特征INVESTIGATION OF VEHICLE ACTIVITY FEATURES油耗特征Oil Consumption Feature80%的车辆平均油耗在10L/100km以下，且主要集中在6-10 L/100 km的区间。总体油耗分布The oil consumption under 10L/100km covers80% of vehicle and it concentrate between 6-10L/100km.分排量段

15、油耗分布油耗占比比例1.0L(含)以下1.0L-1.6L1.6L-2.5L2.5L-4.0L4.0L以上中国工况车辆活动特征INVESTIGATION OF VEHICLE ACTIVITY FEATURES运行特征Running FeatureØ 近一半的市民日均出行不超过55km。Nearly half of citizens travel less than 55km one day.Ø 车辆日均使用时长集中在1-2h内，有80%的车辆日均使用时长低于4h。Most of vehicles are drove running 1-2 h and 80% of vehi

16、cles are under 4 h.Ø 绝大多数的出行都属于短途出行。Most of travels belong to short trips.分布频率比例占比40%36%35%车辆日均使用时长工作日30%26%周末25%22%19%20%16%15%11%13%13%10%8%9%5%6% 6%5%3%1% 2%2% 2%0%<1h12h23h34h45h56h67h78h>8h50%单次运行时间40%30%20%10%0%<0.50.5-1h1-2h2-3h3-4h4-5h>5h运行时间33%30%车辆年活动水平：万公里19%20%16%10%10%7%0%<11-22-33-44-55-66-77-88-99-10>103%2%3%4%1%1%中国工况车辆活动特征INVESTIGATION OF VEHICLE ACTIVITY FEATURES道路情况特征Traffic Feature工作日与周末都会出现早、晚的比较平缓。，而周末Ø工作日There are morning and evening rush hours on weekdays and weekend, but the rush hours appea