ct2發(fā)動機排放控制技術(shù)emission and control technology alternative fuel2017apac iee

1、中國工況典型城市輕型車行駛特征研究Research on Light duty Driving Features ofTypical Cities人：Speaker：WANG YANG中國汽車技術(shù)研究中心（）China Automotive Technology & Research Center（Tianjin）中國工況研究目標PROJECT TARGETS2015年，工信部四部委共同委托中國汽車技術(shù)研究中心開展為年的“中國工況”研究和開發(fā)，50余家高校、研究機構(gòu)、企業(yè)的千余名技術(shù)參與。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. 開發(fā)能耗/排放檢測工況Development of driving cycle for the consumption/emission standardØ開發(fā)以及典型區(qū)域的輕型、重型汽車工況National/regional CLTC (li

3、ght-duty) and CHTC (heavy-duty), including the new energy types.2. 修訂基于新工況的汽車能耗/排放測試標準 Revise of the FC/emission standards based on the new CATC (Draft)ØØ測試規(guī)程研究與評價 Research and evaluation of the test procedure制修訂測試程序文本 Write and revise the draft中國工況整體概況DATA COLLECTION OVERVIEW1、項目分三期先后在41個

4、城市組建車隊，與50余家企業(yè)、研究機構(gòu)和高校簽署了合作協(xié)議，參與項目的科研達到了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，個不同車型。車輛規(guī)模達5700余輛，已經(jīng)實現(xiàn)了一年的數(shù)據(jù)穩(wěn)定，涵蓋約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3400萬公里，每天約10萬公里，輕型車約2100萬公里，重型車約1300萬公里，新能源車400萬公里。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.覆蓋城市覆蓋車輛總里程數(shù)據(jù)容量參與參與機構(gòu)41個5700輛3400萬公里6T1000人50家北京市采集數(shù)據(jù)覆蓋情況中國工況41個數(shù)據(jù)采集城市中國工況車隊整體FLEET CONSTITUTIONHeavy duty vehicleNew energy vehicleLight duty vehicleConventional vehicleTaxiOfficialcarIntercity busBusPrivate carHeavy duty trackSpecial-used vehicle重型車車輛用途比例輕型車車輛用途比例傳統(tǒng)

7、車與新能源車比例輕型車與重型車比例中國工況數(shù)據(jù)特征DATA FEATURE各城市工況特征Cycle Feature數(shù)據(jù)的平均車速為26.5km/h，平均怠速比例為Ø 中國工況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異明顯，并且平均速度低的城市怠速比例未必高。例如重慶，貴陽；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 低速區(qū)間的怠速比例最高，隨著速度的增大，怠速比例逐漸降低。The idle percentage in low-velocity region appears thehighest, which becomes lower with the higher velocity.平均速度（km/h）怠速比例中國工況數(shù)據(jù)特征DATA FEATURE不同數(shù)據(jù)源比較Comparison of Vari

9、ous Source無論是在各城市的平均車速比較，還是在綜合平均車速比較，中國工況與它們都較為接近，反映了CATC符合中國實際。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 大連 廣州 哈爾濱?？诤戏蕽侠确荒喜?南京 南寧 青島 廈門 上海 沈陽 石家莊蕪湖西安襄陽長春長沙鎮(zhèn)江鄭州重

10、慶株洲中國工況數(shù)據(jù)特征DATA FEATURE速度片段特征Short Trip FeatureØ 各城市的運動片段時長和怠速片段時長有一定差異。The duration of running short trips differs from that of idle short trips .Ø 不同速度區(qū)間的怠速時長較為接近，運動時長差異明顯，總體運動時長介于低速時長和中速時長之間。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 平均運動片段時長不足2分鐘。The duration of average running shop trip is less than 2minutes.時間（s）中國工況數(shù)據(jù)特征DATA FEATURE月度數(shù)據(jù)特征Monthly DataFeature各月份平均速度各月份怠速

12、比例各月份運動片段時長平均速度（km/h）時間（s）比例（%）中國工況數(shù)據(jù)特征DATA FEATURE季節(jié)數(shù)據(jù)特征Seasonal DataFeature各季節(jié)平均速度各季節(jié)怠速比例各季節(jié)運動片段時長平均速度（km/h）時間（s）比例（%）中國工況數(shù)據(jù)特征DATA FEATURE分車型特征Different TypeFeature兩類車型速度段比例兩類車型速度度兩類車型速度分布兩類車型度分布比例（%）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）中國工況數(shù)據(jù)特征DATA FEATURE分車型特征Different TypeFeature兩類車型速度特征兩類車型度特征兩類車型速度分布兩類車型速度段特征速度（km/h）速度（km/h）度（m/s2）比例（%）乘用車輕型車20151050乘用車輕型車中國工況車輛活動特征INVESTIGATION OF VEHICLE ACTIVITY FEATURES速度特征Velocity Feature總體平均出行時速集中在30-40km/h范圍內(nèi)，這個結(jié)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.比例中國工況車輛活動特征INVESTIGATION OF VEHICLE ACTIVITY FEATURES油耗特征Oil Consumption Feature80%的車輛平均油耗在10L/100km以下，且主要集中在6-10 L/100 km的區(qū)間?？傮w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以上中國工況車輛活動特征INVESTIGATION OF VEHICLE ACTIVITY FEATURES運行特征Running FeatureØ 近一半的市民日均出行不超過55km。Nearly half of citizens travel less than 55km one day.Ø 車輛日均使用時長集中在1-2h內(nèi)，有80%的車輛日均使用時長低于4h。Most of vehicles are drove running 1-2 h and 80% of vehi

16、cles are under 4 h.Ø 絕大多數(shù)的出行都屬于短途出行。Most of travels belong to short trips.分布頻率比例占比40%36%35%車輛日均使用時長工作日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%單次運行時間40%30%20%10%0%<0.50.5-1h1-2h2-3h3-4h4-5h>5h運行時間33%30%車輛年活動水平：萬公里19%20%16%10%10%7%0%<11-22-33-44-55-66-77-88-99-10>103%2%3%4%1%1%中國工況車輛活動特征INVESTIGATION OF VEHICLE ACTIVITY FEATURES道路情況特征Traffic Feature工作日與周末都會出現(xiàn)早、晚的比較平緩。，而周末Ø工作日There are morning and evening rush hours on weekdays and weekend, but the rush hours appea