纯电动节能小车的总体设计【含CAD图纸、说明书】
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毕 业 设 计(论 文)外 文 参 考 资 料 及 译 文译文题目: Electric vehicle development:the past,present&future 电动汽车发展:过去,现在和未来 学生姓名: 学 号: 专 业: 所在学院: 指导教师: 职 称: 20xx年 2月 27日Electric vehicle development:the past,present&futureBy Lixin Situ Abstract A vehicle is consider Green when it more environmentally friendly than the traditional petroleum combustion engine, in which includes any nontraditional vehicle like, HEV, Plug In, EV, Fuel Cell, Bio fuel etc. that improves fuel economy. The development of electric vehicle has been over a hundred years but failure to gain the public acceptance in various stages due to various reasons which explained. While EV was never mass produced, Hybrid electric vehicle gains the momentum in recent years. Ford has launched its second generation of HEV and GM also announced the debut of the Volt in 2010. Comparing to the regular HEV, Plug in is the new trend in hybrid auto development due to extend travel range in electrical mode and a possibility of a zero emission as long as travel distance is less than charging threshold. However, more recently, an electrification trend in automotive industry has been evolved and will revolutionize the industry. With the correct policy and government help and advancement of electric vehicle technology, the prospect of Electric Vehicle will be bright and the focus point of future development. INTRODUCTION As associated with energy independence and environmental issue, alternative fuel vehicle, especially Electric and Hybrid electric vehicle has become part of the government policy all over the world. The united State mandates a stricter fuel economy standard. China issued a new energy vehicle policy to accelerate & subsidize the deployment of electric this year and set a goal of 500k for 2011. Hong Kong also set a clear vision for EV application in the near future.As for the auto industry, a silent green resolution is undergo significant transformation after gasoline price rose significantly to exceed US$2 level and market demands for such vehicle. The industry introduced more fuel efficient HEVs and less polluted vehicles to the market. As Oil price surged rapidly during the last few years, the phenomenon has pushed pure electric vehicle development regaining traction among automakers and governments.The consumer market has brought significant gain in alternative fuel vehicle as well as HEV and electric vehicles. A HEV study (Fig. 1) conducted by Polk & Company indicated an upward trend of market share of HEV sales in United State and Western Europe. An even bigger share of HEV and EV were predicted when they combined. In fact, selection of HEV models from OEMs have grown from two (Insight & Prius) in 2000 to more than twenties as today. Sales of the HEV are in the fast track along with more than 300,000 HEV sold in 20072. Further known commitments of HEV and electric vehicle from OEM will improve the HEV production even more. Adding plug-in and electric vehicle to the line up will strengthen and accelerate the current electrification trend.Chevy Volt, the first plug-in hybrid, and a bunch of planned electric vehicles saluted for end consumer in the North America will lead to a round of new energy vehicle in the market. HISTORY OF ELECTRIC VEHICLE DEVELOPMENTThe development of electric vehicle has a long history. Since the invention of electric motor, electric vehicle has been around for 150 years. From simple non-chargeable to modern state of art control system, the development of Electric vehicle can be classified into three stages:A. Early development stageElectric vehicle was considered among the earliest automobile and well ahead of combustion engine. It dominated the vehicle registration with 3:1 comparing to gasoline vehicles in the late 1920s to 1930s and held most of the land vehicle performance record in early 1900s. It was a major transportation tool and widely used in the society for local transportation improved from horse carriages. Until 1930, electric vehicle leadership was overtaken by gasoline vehicle development and was never able to reclaim the status for following reasons: Maturity of Gasoline vehicle and can be mass produced at a reasonable cost. With the mass production of Model T & manufacture process revolution, vehicles became suddenly available to general public and proceed as a way to improve life; Gasoline vehicle took over as the leader and surpass electric vehicle both in performance and cost. Infrastructure improvement and demand of inter-city travel required a longer travel distance that was never able to exploit by electric vehicle before. Lacking of charge infrastructure development, reliable electricity transmission and limited travel distance, electric vehicle no longer suited for consumer demand and lost the edge to regular gasoline vehicle. Limited or no electrical infrastructure support forced the resignation and abundance of earlier electric vehicle.Widely discovery of gasoline in the sate and ready availability of cheap fuel also contributed the spread of gasoline vehicle. Petrol in the 1930s provided a direct cheap source of energy for vehicle transportation. It could be carried around by container which enabled and extended the mobility of owning a vehicle.B. Midterm development (1930s-1980s)Electric vehicle production and development came to a halt as personal transportation after combustion engine took over in 1935. Political sensitivity with OPEC created a necessity of energy independence during the 1960s and 1970s. U.S Government and environmentalist reintroduced tougher fuel efficient standard for the industry and ignited a board interest in electric vehicle in the period. Energy crisis in early 70s driven the US postal service placed a large order of 350 EV test fleet. It is the highest node of midterm development. However, partly due to limited performance, other governmental priorities, lack of board infrastructure support and range of corporation participation, the development quiet down quickly during this period.C. Modern DevelopmentModern EV development was dominated by EV1 who produced by GM for fleet application. Following a program funded by Department of Energy, Ford developed EV Ranger pick up truck, Toyota provided Rav4 EV and Honda had an EV available as well during late 1990s and early 2000s. Unfortunately, this short surge of EV availability did not realized into commercial production because of a complicated issue of politics, economic, education and technology that includes vehicle production cost and safety concerns. EV1, Ranger, Rav4 and Honda EV were intended for fleet test only, almost all the vehicles has been discontinued, destroyed and recycled. Only a handful of electric vehicles were survived under the hands of EV enthusiasts.D. Modern HEV developmentHowever, in 1999 and early 2000s, a new type of electric vehicle emerged from pure electric vehicle. Honda introduced the first HEV, Honda Insight, to the US Market that brought another milestone in auto industry. With brisk market acceptance and success of the Prius, HEV technology shows it maturity and potential. Ford introduced the first American hybrid electric vehicle, Escape SUV HEV, during the Manhattan on a Tank event and registered 600 miles/tank in congestive city traffic that opened a new era of competition in US among HEVs. By year of 2008, the HEV sales were more than 2.5% for total sales volume. In deep, the next generation of HEV from Toyota, Honda and Ford has introduced into 2009 with further refinement along updated technology. Fuel efficiency has improved as well.Toyota is the clear leader in the HEV arena base on volume and range of models with it “synergy drive system”. Honda and Ford are right behind with their offering in full hybrids. GM offers its “two mode” technology in hybrid passenger cars and trucks as well.E. Future DevelopmentAs gasoline price rise rapidly, combined with environmental concern, the society renews the call for social responsibility. Electric Vehicle and other AFV suddenly becomes popular again.With announcement of the Chevy Volt plug-in concept couple years ago and pure electric vehicle from Nissan, a new round of EV development has resurrected into OEMs cycle plan in the up coming years. The fruit of this EV trend will be seen in the next three years.Comparing to previous electric vehicle development, there are a few factors that will ensure this initiation be successful in the future:Vehicle operators are the direct target customers of developing EV. Market driven approach always creates competitive and attractive products at reasonable cost and performance.Early technology and environmental adopter will the initial leaders and users. They are willing to support and has the capability to influence the success. Also various education programs and EV initiatives transform general understanding of fuel efficient vehicles and their benefits. Warm acceptance of electric vehicle is high in the coming years.Cooperation in charge station and infrastructure development has gained attention at different level. Various business models are being explored. The industry and government are confident that final plan will reach prior to the mass launch of electric vehicle.Energy storage technology improvement makes lithium battery application became safe in vehicle. Sophistication of system management upgrades and improves electric vehicle to a comparable level of combustion engine. Lastly, proper government policy provides a development foundation for the industry. Special tax incentives and subsidy will offset consumer burden for purchasing electric vehicle. It is a confident vote for the product when government is willing to provide financial and strategic support.III CONCLUSIONLike many emerging technology, electric vehicle development and application have been around for a long time, but until recently, the technology has not really taken off. Even though HEV started as a good alternative to gasoline vehicle and well publicized by the media, but it only represented as the intermediate step or near term solution. Government regulation and environmental prospect, in particular will drive the adoption of transportation electrification. Electric vehicle will be the final goal. Along with new electric vehicle development on the way, it will also introduce tremendous opportunity in associated technology especially in Power electronics. We shall utilize this opportunity and contribute to the green trend.电动汽车发展:过去,现在和未来司徒立新引言一辆汽车被认为是绿色的,如果这部车比传统燃油内燃机对环境更友好,而这种汽车包含了任何非传统的汽车,如混合动力汽车,包括EV,燃油电池,生物燃料等提高了燃油经济性。电动车的开发已超过100年,但未能获得公众接受在不同阶段,由于各种原因的解释。虽然从来没有大规模生产电动汽车,混合动力电动汽车在近几年增长的势头。福特已经推出了第二代混合动力汽车和通用汽车公司也宣布在2010年首演。相较于普通混合动力汽车,堵塞是由于混合动力汽车的发展模式,扩大旅游范围和电力的一个零排放的可能性,只要行走距离的新趋势比收费门槛低。但是,最近以来,在汽车行业的电气化趋势已经形成,它将改变这个行业。有了正确的政策和政府的帮助和电动汽车技术的进步,对电动汽车的前景将是光明和未来发展的聚焦点。1 现状 由于能源独立和环境问题,替代燃料车辆,特别是电力和混合动力电动汽车已经成为相关政府政策的一部分,在世界各地。美国推广了一项更严格的燃油经济标准。中国发布了一项新能源汽车补贴政策,以加速和部署今年的电力,并为2011年50万的目标。香港还成立了电动汽车在不久的将来应用的清晰版本。至于汽车行业,无声的绿色解决方案是经过重大改造后的汽油价格大幅上涨超过2美元的水平,并为这些车辆的市场需求。业引进更多的混合电动汽车的燃油效率和减少污染车辆的市场。由于石油价格上涨在过去几年里发展很快,这种现象已使纯电动汽车发展的汽车制造商和政府之间恢复牵引力。消费市场带来了替代燃料汽车以及混合动力汽车和电动汽车重大增益。HEV研究波尔卡公司进行的市场调查显示,如在西欧国家和美国混合动力电动汽车的销售份额上升的趋势。戊型肝炎病毒的一个更大的份额和EV进行了预测时,他们结合起来。事实上,从原始设备制造商选择混合动力汽车模型已经从2000年是只可选择2款(本田的insight和丰田的Pries)到今天的可选择20款之多。在混合动力汽车的销量在快速轨道以及更多的混合动力汽车在2007年超过30万出售。进一步已知的混合动力汽车和电动汽车原始设备制造商承诺将改善混合动力汽车产量甚至更多。添加插件和电动车的线路将进一步加强和加快目前电气化的趋势。雪佛兰伏特,第一款插入式混合动力车,和一堆计划(生产)电动汽车(销售商)为对北美北美最终消费者表示敬意将在北美市场上引出一轮新能源汽车。2 电动汽车发展史 电动车的发展有着悠久的历史。由于电动机的发明,电动汽车已经出现了150年。从简单的非充电控制系统,以艺术的现代国家,对电动车的发展可分为三个阶段划分。2.1早期开发阶段电动车被认为是最早的汽车和内燃机遥遥领先。它与比较主导20世纪20年代末到30年代3:1汽油车辆的车辆登记,并于1900年代初的土地大部分车辆性能记录。这是一个重大的交通手段和广泛的社会使用当地交通从马车改善。直到1930年,电动汽车领导和取代汽油车的发展,是永远无法回收的状况,原因如下:成熟的汽油车,并且可以在合理的成本大规模生产。随着T型车大规模生产和制造过程的革命,车辆突然成为可供一般公众,进而以此来改善生活;汽油汽车接任领导和赶超的电动汽车的性能和成本。基础设施的改善和城市间的交通需求,往往需要较长的旅行距离,从来没有能够利用由电动车前。缺乏基础设施的发展费用,可靠的电力传输和有限的旅行距离,电动汽车已不再适合消费者的需求,失去了优势,以普通汽油车。有限或没有电子基础设施的支持被迫辞职和早期电动车数量。储量丰富的汽油矿藏被广泛发现,以及廉价燃料造就了燃汽交通工具的广泛传播。在20世纪30年代石油能源直接提供了廉价的运输车辆来源。它可以进行这使周围的货柜,延长车辆的拥有流动性2.2 中期发展阶段(1930-1980)电动车生产和发展来作为个人交通停止燃烧后发动机发生在1935年结束。政治敏感性与欧佩克期间创建60和70年代的能源独立的必要性。美国政府和环保重新提出更严格的燃料效率标准的行业,点燃一期间在电动汽车板的兴趣。能源驱动的美国邮政服务70年代初的危机放在了350电动汽车试验车队大订单。这是中期发展的最高节点。然而,部分原因是由于性能有限,其他政府优先事项,董事会对公司的基础设施支持和参与范围,在此期间发展低调而迅速的下降。2.3 现代发展阶段现代电动汽车发展的主导力量是由通用汽车生产的EV1,车队中的应用。继美国能源部资助的计划,福
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