6110型雙層客車車身造型及骨架設(shè)計(jì)【2張CAD圖紙+PDF圖】

喜歡就充值下載吧。。資源目錄里展示的文件全都有，，請(qǐng)放心下載，，有疑問咨詢QQ:414951605或者1304139763 ======================== 喜歡就充值下載吧。。資源目錄里展示的文件全都有，，請(qǐng)放心下載，，有疑問咨詢QQ:414951605或者1304139763 ======================== Structure and impacts of fuel economy standards for passenger cars in ChinaDavid Vance Wagner?, Feng An, Cheng WangThe Innovation Center for Energy and Transportation, Room 1904, e-Tower Building, No. C12 Guanghua Rd., Chaoyang District, Beijing 100020, Chinaa r t i c l e i n f oArticle history:Received 28 May 2009Accepted 15 July 2009Available online 8 August 2009Keywords:ChinaFuel economyPassenger carsa b s t r a c tBy the end of 2006, there were about 24 million total passenger cars on the roads in China, nearly threetimes as many as in 2001. To slow the increase in energy consumption by these cars, China beganimplementing passenger car fuel economy standards in two phases beginning in 2005. Phase 1 fuelconsumption limits resulted in a sales-weighted new passenger car average fuel consumption decreaseof about 11%, from just over 9l/100km to approximately 8l/100km, from 2002 to 2006. However, weproject that upon completion of Phase 2 limits in 2009, the average fuel consumption of new passengercars in China may drop only by an additional 1%, to approximately 7.9l/100km. This is due to the factthat a majority of cars sold in 2006 already meets the stricter second phase fuel consumption limits.Simultaneously, other trends in the Chinese vehicle market, including increases in average curb weightand increases in standards-exempt imported vehicles, threaten to offset the efficiency gains achievedfrom 2002 to 2006. It is clear that additional efforts and policies beyond Phase 2 fuel consumptionlimits are required to slow and, ultimately, reverse the trend of rapidly rising energy consumption andgreenhouse gases from Chinas transportation sector.& 2009 Elsevier Ltd. All rights reserved.1. IntroductionThe recent growth of Chinas automobile industry has beenstaggering. Rapid rises in production and sales more than doubledthe number of on-road civil vehicles in China, from 18 to 37million, during the period 20012006 alone (CSY, 2007). Inaddition, in 2006, there were over 24 million rural vehicles(CAAMS, 2007) and 81 million motorcycles in China (CATARC,2007b). Though there are certainly many economic and personalbenefits to an increasingly motorized population, this explosion ofvehicles has also contributed to a host of negative effectsthroughout China, including heavily congested streets, stiflingurban air pollution, and rapidly increasing national oil depen-dence and greenhouse gas emissions.In 2004, with primary concern over mitigating Chinas risingoil dependence, the Chinese government issued first-ever nationalfuel economy standards for passenger cars. The first phase of thestandards took effect over the period 20052006. With theimplementation ofthefirst phasenow complete, there isincreasing interest in evaluating and understanding both theimpacts of the current standards as well as the potential impactsof the upcoming second phase of standards.In this paper, we summarize the current Chinese passenger carfuel economy standards in the context of Chinas automobileindustry growth, national oil consumption, and CO2emissions. Wethen explore existing precedents for estimating the historical fueleconomy of Chinas passenger car fleet, and investigate currentChinese vehicle fuel economy data sources. We then perform ourown analysis of Chinese passenger car fuel economy, comparingthese results against other estimates and noting trends. Finally,we describe additional efforts the Chinese government is makingto limit the fuel consumption by Chinas passenger car fleet.2. Background2.1. Vehicle definitionsOfficially, highway vehicles in China are classified according toChinese national standard GB/T 15089-2001, Classification ofPower-driven Vehicles and Trailers (SAC, 2001). This standarddefines vehicle classes in China according to M (passengervehicles) and N (commercial vehicles) classification labels similarto those used in Europe; these are shown in Table 1. All vehiclefuel economy regulations in China, including current and futurepassenger vehicle fuel economy standards as well as commercialvehicle regulations, are based on the categorizations shown inTable 1.However, vehicles in China are additionally classified accordingto a slightly different classification system dictated by theMinistry of Public Security. These classifications are used bothfor official statistical reporting by the National Bureau of Statisticsas well as for administrative management, e.g. licensing. Underthis system, highway vehicles are categorized as passengerARTICLE IN PRESSContents lists available at ScienceDirectjournal homepage: Policy0301-4215/$-see front matter & 2009 Elsevier Ltd. All rights reserved.doi:10.1016/j.enpol.2009.07.009?Corresponding author. Tel.: +861065857324; fax: +861065857394.E-mail addresses: , (D.V. Wagner).Energy Policy 37 (2009) 38033811ARTICLE IN PRESSvehicles, trucks, or others. Among passenger vehicles, vehicles arefurther classified by size as large, medium, small, or minicar. Thisclassification system is shown in Table 2 (MPS, 2008).From Tables 1 and 2, it can be inferred that M1-type vehicles,including M1G, are either small or minicar passenger vehicles.In this report, we consistently use the term passenger car torefer to all vehicles with nine or fewer seats designed primarily forcarrying passengers. This refers to all M1 and M1G-type vehiclesas defined by the Standardization Administration of China, whichis same as all small and minicar passenger vehicles as defined bythe Ministry of Public Security. The term includes MPVs and SUVs.2.2. Historical vehicle population growthThe National Bureau of Statistics of China publishes annualdata on the possession of civil vehicles in China (CSY, 2007). Asdescribedpreviously,vehiclesarecategorizedaspassengervehicles, trucks, or others. Data is given both for total possessionof civil vehicles as well as for private vehicles, a subset of civilvehicles. Among passenger vehicles, beginning in 2002, vehiclesare further classified by size as large, medium, small, or minicar.Passenger vehicle size definitions were given previously in Table 2.According to the definitions in Table 2, we calculate thepossession of passenger cars in China as the sum of the small andminicar data for each year. Prior to 2001, though cars are notseparated out from passenger vehicles in official statistics, for thepurposes of this analysis we have roughly approximated carpossession by assuming 85% of all civil passenger vehicles arepassenger cars, and 90% of all private passenger vehicles areprivate passenger cars. These percentages are rough extrapola-tions based on the figures shown in Table 3.The growth of on-road vehicles by selected categories in Chinais shown in Fig.1. By the end of 2006, there were nearly 24 milliontotal passenger cars on the roads in China, nearly three times asmany as in 2001.Though Fig. 1 shows tremendous growth in possession of alltypes of vehicles, the growth of private passenger cars isparticularly remarkable. In 1990, there were less than 250,000private passenger vehicles (of all sizes) in China; by 2006, therewere over 17.5 million private passenger cars alone. Accordingly,the growth of total on-road vehicles has been increasingly fueledby the growth of private passenger cars. This can be seen fromFig. 2, showing the percentage growth in overall on-road vehiclescoming from various vehicle types. In 2006, 80% of the growth ofon-road vehicles came from the growth of private passenger cars;in 2000, it was just 35% of total growth.The increasing importance of private passenger cars in China isno surprise. As Chinas per capita GDP has risen, so has demandand ownership of vehicles, echoing a common trend around theworld (Ng and Schipper, 2005). In 2006, there were approximately18 passenger cars per 1000 people in China, 14 of which wereprivately owned. Though these ownership rates are significantlysmaller than those of developed countries passenger carownership in the United States being above 800 per 1000 people(Ellis et al., 2008) the recent, rapid rise of vehicle ownership inChina is a major source of concern with respect to the current andfuture energy, environmental, and social impacts of Chinaspassenger car fleet.2.3. Passenger car population projectionsChinese passenger car population projections consideringvarious different growth scenarios were recently made by Wanget al. (2006) and Ng and Schipper (2005). These projections areshown in Fig. 3. Wang et al. projected Chinas passenger carpopulation to equal that currently in the United States by justafter 2030, while Ng and Schipper projected faster growth.Though projecting future passenger car population is beyondthe scope of this paper, it is worth noting that, due to higher-than-expected growth rates of all areas of the Chinese economy,including the automotive sector, projections of future vehiclepopulation from even just a few years ago are already outdated.Because Chinese passenger vehicle growth rates from 2003 to2006 were 26%, 19%, 25%, and 25%, respectively, the 2006population of passenger cars in China, 24 million, is alreadyalmost equal to the 2010 estimate in most of Wang et al. andSchipper and Ngs projections. This may be seen in Fig. 4.2.4. Vehicle energy consumption and CO2emissionsChinas rapid economic growth has demanded more and moreenergy from all sources and for all sectors. Although Chinasofficial energy statistics do not report specific energy consump-tion by the complete transportation sector, a recent report by theInstitute for Energy and Environmental Research Heidelbergestimatedthat,in2003,Chinastransportationsectorwasresponsible for 17% of total national energy consumption (Kn orrand D unnebeil, 2008). This is still significantly lower than that ofEurope, for which the transportation sector uses 27% of totalTable 1Chinese vehicle classifications defined by the Standardization Administration ofChina.Classification DefinitionM1Passenger vehicle with 9 or fewer seatsM1GSUV with 9 or fewer seatsM2Passenger vehicle with more than 9 seats and with curb weight lessthan or equal to 5000kgM3Passenger vehicle with more than 9 seats and curb weight above5000kgN1-3Vehicle used for transporting goodsTable 2Chinese passenger vehicle size classifications defined by the Ministry of PublicSecurity and used by the National Bureau of Statistics.China vehicle size classificationDefinitionPassengerVehiclesMinicarVehicle shorter than 3.5m and with anengine capacity of 1l or lessSmallVehicle shorter than 6m with 9 orfewer seatsMediumVehicle shorter than 6m and holding1019 peopleLargeVehicle longer than 6m or holding 20or more peopleTable 3Percentages of passenger vehicles in China that are passenger cars (calculated fromCSY, 2007, and our estimates).Year(s)Civil passenger cars aspercentage of civilpassenger vehicles (%)Private passenger cars aspercentage of privatepassenger vehicles (%)1990200185 (estimate)90 (estimate)2002859320038794200488952005909620069196D.V. Wagner et al. / Energy Policy 37 (2009) 380338113804ARTICLE IN PRESSenergy consumed (Kn orr and D unnebeil, 2008). However, thispercentage is likely to grow as Chinas automobile industrycontinues to grow and as other industries improve efficiency.The Chinese government is particularly driven to limit energyuse by the transportation sector because this sector is one of themajor consumers of petroleum in the country. As a result of risingpetroleum demand coupled with limited domestic supply, Chinabecame a net importer of petroleum in 1993. As shown in Fig. 5,Chinas petroleum import percentage has grown ever since,reaching 50% in 2006 (CSY, 2007).Because Chinas on-road transportation vehicles are fueledalmost exclusively by gasoline and diesel, much of the rapidgrowth of petroleum consumption in China can be linked to thegrowth of on-road transportation vehicles. CATARC data indicatethat, in 2006, motor vehicles consumed 86.4% of all gasolineconsumed in China and 24.1% of all diesel (CATARC, 2007b).Controlling petroleum consumption by this sector is a critical goalfor China in order to slow the growth in its oil dependence.Though Chinas current energy saving policies primarily targetenergy security, there is increasing pressure internationally anddomestic recognition of the need for China to slow the growth ofits CO2emissions. This is especially true now that China is thoughtto be the worlds largest emitter of greenhouse gases (Rosenthal,2008).Within the transportation sector, the increased use of petro-leum has led to a corresponding increase in CO2emissions fromon-road transportation. Wang et al. estimate that, as early as 2028,Chinas total on-road CO2emissions could match those of theUnited States in 2004 (Wang et al., 2006). However, this may evenbe a low estimate due to higher-than-expected growth, asmentioned previously.05,000,00010,000,00015,000,00020,000,00025,000,00030,000,00035,000,00040,000,0001978YearNumber of VehiclesTotal On-Road Civil Vehicles in China (not incl motorcycles)Total Civil Passenger Cars in ChinaTotal Private Passenger Cars in ChinaTotal Civil Trucks in China19831988199319982003Fig. 1. Possession of civil vehicles in China, by type, 19782006. Solid lines show data from the China National Bureau of Statistics (CSY, 2007). Dotted lines show ourestimates.0%10%20%30%40%50%60%70%80%90%100%2000YearPrivate Passenger CarsNon-Private Passenger CarsTrucksOther Vehicles200120022003200420052006Fig. 2. Percentage growth in overall on-road vehicles coming from various vehicletypes.01002003004005006002000YearNumber of Cars, millionsWang et al Low Growth ScenarioWang el al Mid Growth ScenarioWang et al High Growth ScenarioNg and Schipper Baseline ScenarioNg and Schipper Oil Saved ScenarioNg and Schipper Integrated Transport ScenarioApproximate Current US Car Population2005 2010 2015 2020 2025 2030 2035 2040 2045 2050Fig. 3. Recent Chinese passenger car population projections.01020304050607080901001985YearNumber of Cars, millionsWang et al Low Growth ScenarioWang el al Mid Growth ScenarioWang et al High Growth ScenarioNg and Schipper Baseline ScenarioNg and Schipper Oil Saved ScenarioNg and Schipper Integrated Transport ScenarioActual Population Data1990199520002005201020152020Fig. 4. Chinese passenger car population projections compared with actualpopulation growth. Note that 2006 real passenger car population is alreadygreater than 2010 population estimates in most of the projections.D.V. Wagner et al. / Energy Policy 37 (2009) 380338113805ARTICLE IN PRESSWithin the Chinese transportation sector, trucks are the largestconsumers of energy and emitters of CO2. Wang et al. estimatethat cars in 2000 only consumed 9% of the transportation sectorstotal oil consumption.1He et al. estimate that in 2002, carsaccounted for only about 16% of oil consumption by Chinastransportation sector (He et al., 2005).However, cars were the first sub-sector of transportationtargetedbytheChinesegovernmentforfuelconsumptionregulation for two reasons. First, as we have seen, the proportion-ally faster growth of cars as compared with other types of vehiclesmeans CO2emissions from cars as a percentage of transport sectoremissions will certainly grow. Indeed, Wang et al.s projectionsshow an increasing share of oil consumption from motor vehiclescoming from cars; the percentage of motor vehicle oil consump-tion by cars rises from 9% in 2000 to 17% in 2010, then up to2829% by 2030.2The second reason Chinese policy makerstargeted cars initially for fuel consumption regulation is that thereis stronger international precedent for regulating fuel consump-tion by passenger cars than for commercial vehicles, as thecommercial vehicle sector tends to self-limit fuel consumption foreconomic reasons.3Wang et al.s oil consumption projection figures are given inmillion metric tons (MMT) oil. After applying a simple conversionfactor,4highest and lowest growth scenario projections for CO2emissions from Chinese passenger cars are shown in Fig. 6. Underthe highest growth scenario, CO2emissions from passenger cars inChina would exceed one billion tons by 2050.3. Structure of Chinese passenger vehicle fuel consumptionstandardsRapidly growing passenger vehicle fleet oil consumption andCO2emissions led China in 2004 to adopt National Standard GB19578-2004, Limits of Fuel Consumption for Passenger Cars(SAC, 2004). Though these standards are primarily designed tohelp mitigate Chinas increasing dependence on foreign oil, otherobjectives include encouraging foreign manufacturers to bringstate-of-the-art, efficient vehicle technologies to the Chinesemarket and squeezing out small and less competent domesticmanufacturers.The standard establishes maximum allowable fuel consump-tion limits for vehicles divided into 16 weight classes. Thestandards are implemented in two phases. Phase 1 was imple-mented on July 1st, 2005, for new models, and July 1st, 2006, forcontinued models; Phase 2 was implemented on January 1st,2008, for new models, and will be implemented January 1st, 2009,for continued models. Vehicles are tested using the New EuropeanDrive Cycle (NEDC).The 16 weight classes range from less then 7503500kg. Thestandards cover M1 and M1G-type vehicles, including passengercars, SUVs, and multi-purpose vans (MPVs). Within each weightclass, vehicles are additionally sub-divided into two categories.Vehicles with special structures are defined as those that meetone of three criteria: (a) have automatic transmission; (b) havethree or more rows of seats; (c) are of the type M1G (SUVs). If avehicle meets all the three criteria, it is granted a 6% exemption ofthe limits. For simplicity, this paper will label the two groups asMT (manual transmission) and AT/SUV (automatic transmissionand/or SUV).One distinctive feature of the Chinese standards is that, ratherthan being based on fleet average, they establish maximumallowable fuel consumption limits by weight category. Chinachose a weight-based limit-value approach for more practical asopposed to theoretical reasons. During the time of the creationof the fuel consumption standards, the Chinese car market washighly fragmented, with over one hundred manufacturers. Therewere very few multiple-line manufacturers; many manufacturersoffered only one or two models, thus making the fleet averageapproach meaningless. Additionally, vehicle sales figures in Chinahave been historically secret, unknown, and/or difficult to obtain,making a sales-weighted average approach unpractical. Theweight classification is based on EU emission testing protocol,with more stringent requirements on heavier models; this isdesigned to curb large vehicle and SUV growth in China.Another unique feature of the Chinese fuel economy standardsis that every vehicle manufactured in China is required to meetthe standard for its weight class. There are neither exceptions nora credit system to allow vehicles that exceed compliance to offsetthose that do not.The Chinese passenger car fuel consumption limits are shownin Table 4 and graphed in Fig. 7.Using a methodology to standardize drive cycles, a recentreport by An et al. noted that Chinas passenger car fuel economystandards are more stringent than those in other developednations, including the United States, Canada, South Korea, andAustralia, although not as stringent as the fuel economy standardsin Europe and Japan (An et al., 2007).010000200003000040000500001976YearQuantity, 10,000 tons sceTotal Crude Oil ProductionTotal Crude Oil Consumption198119861991199620012006Fig. 5. Chinas total crude oil production and consumption from 1978 to 2006.0200400600800100012002000YearMillion tons CO2 EmissionsWang et al lowest growth scenarioWang et al highest growth scenario2005 2010 2015 2020 2025 2030 2035 2040 2045 2050Fig. 6. Projections of CO2emissions from Chinas passenger cars, converted fromoil consumption figures.1Estimated from Wang et al. oil consumption data, pp. 4446.2Estimated from Wang et al oil consumption data, pp. 4446.3Though China has recently enacted fuel e