New energy vehiclesNew energy vehicles is a new automotive product type, because the development time is not long, the technology is still not mature, so has not yet formed a widely accepted concept, but it certainly is new energy automobile is compared to the traditional fuel vehicles, the new energy vehicles, according to the definition of the scope of the concept size, there are two types of narrow and broad statement.Generalized: used in gasoline and diesel oil as power source of the car.Special: a non conventional vehicle fuel as the advanced technology of powercontrol and drive, the formation of technology has advanced principle, new technology, new structure of automobile.New energy vehicles, including fuel cell cars, hybrid cars, hydrogen powered cars and solar car etc..Hybrid electric vehicle is a vehicle equipped with more than two source:battery, fuel cell, solar cell,Turbine locomotive.The current hybrid vehicles generally refers to the diesel generator, plus battery cars.Advantages:Vehicle starting and stopping, driven only by the battery, do not reach a certain speed,The engine will not work, therefore, can make the engine has been maintained in the best condition, good dynamic performance, very low emissions, and the source and power are the engine, gas can only. Its principle is simply the motor and engine the reasonable arrangement of power output machine.Disadvantages:There are two sets of power,Management control system plus two sets of dynamic,Complex structure,Difficult,The price is high and long distance speed is not fuel-efficient.Pure electric vehicle is composed entirely of rechargeable battery (such as lead-acid batteries, nickel cadmium batteries, nickel hydrogen batteries or lithium ion batteries provide power source for car).Pure electric vehicle motor fuel to replace machine, low noise, no pollution,and by the use of electrical energy single, electric control system of hybrid electric vehicle is greatly simplified compared. Reduces the cost, the price also can compensate the battery. Pure electric vehicle is mainly used for the airport, community, courts and other places.Disadvantages: only in certain range, the market is smaller. The main reason is because of various categories, the prevailing prices high, life is short, the size and weight of the large, long charging time, serious shortcomings.Fuel cell vehicles refers to the hydrogen, methanol as the fuel, the current through the chemical reaction, depending on the electric motor driven vehicles. The battery power is through the chemical reaction of hydrogen and oxygen, rather than through the combustion, directly into electrical energy.The chemical reaction process of fuel cell does not produce harmful products,therefore the fuel cell vehicle is a car without pollution, energy conversion efficiency of the fuel cell of high 2 ~ 3 times than the internal combustion engine, so the use of environmental protection and energy, fuel cell vehiclesand is an ideal vehicle.Household car is more and more, oil prices more and more expensive, every car company began to research and development of new energy vehicles.1.IntroductionChery since 2000 we have engaged in the research and development of the new energy vehicles, through more than ten years of independent innovation, the new energy vehicles business experienced three important stages of development; From 2001 to 2005, the company with the national 863 project for the carrier, joint top Chinese universities and research institutes, undertake and completed a number of national 863 electric vehicle research subject, the major projects in just3 years time, complete the ISG moderate hybrid and pure electric vehicles of the rational development model. From 2005 to 2008, approved by ministry of a "by national energy conservation and environmental protection automotive engineering technology research center", based on the basic completion of the new energy vehicles of the industrialization of the research and development, the establishment of a sound energy saving and new energy vehicle development system, the world first-class new energy test center, trial-produce center, in the electric car key components and core technology, the company has formed a set of key parts research, testing, application and industrialization of calibration ability, in the motor, motor drive system, DC/DC, advanced power battery, the battery management system, the vehicle controller, initially forming a batch production ability, have the new energy vehicles, the core technology of the calibration technology and experiment technology. New energy vehicles special vehicle accessories system, including: electric air conditioning, the electric steering (EPS), electric vacuum, electric heating, electronic brake system has been formed series products, with the bulk production ability. The first paragraph A5-BSG hybrid cars in 2008 listed in wuhu, batch, dalian city, as the taxi are greatly welcomed by customers, but also become henan, guangdong, xinjiang, shanxi, fujian, zhejiang and other private user's private cars. Moderate hybrid (ISG) car has entered the small batch production stage, which is DuoGe new energy vehicle demonstration pilot city, as the lease, the first choice of state-owned cars models. Miniature pureelectric vehicles and intermediate pure electric vehicles and miniature electric buses, pure electric taxies, pure electric bus industrialization development also has made a great progress. At the same time, we also pay more attention on high efficiency and energy saving the gasoline engine, the diesel engine technology, flexible fuel automobile technology, strong hybrid technology, fuel cell vehicle technology, comprehensive development, a number of technical are in the leading domestic level. Since 2009, the company launched a new comprehensive energy car large-scale industrialization and application, chery A5ISG, A5BSG, S11EV and S18EV has got a letter issued by the department work products in the country the announcement and saving energy and environmental protection products recommended directory; In January 2009, chery automobile company "energy conservation and environmental protection technology platform construction project" get "country" first prize progress prize in science and technology. In March 2010 the first batch of economical pure electric car delivery customers use and chery new energy vehicle technology Co., LTD. was set up, marked the new energy vehicle company opened a new chapter in the business2.Main discussion1. The advantages of new energy vehicles (strength) analysisThe state information center forecast, China's passenger car market growth situation will continue for at least a further 15 years, annual growth needs roughly equivalent to GDP growth in the 1.5 times or so. In 2009 a car into the family (middle-income families buy have ability). From the qualitative Angle, car market at least will also have 20 years of fast growth. If domestic GDP2020 years than in 2000, around 2020 words to quadruple our country will more than the United States, automobile demand will reach 20 million cars, as the world's largest car market.Since 1988, in fujian province, and become the largest of the special economic zone, the provincial capital of hainan province since the haikou city become haikou city won the top ten cities, and national environmental protection model city, national sanitary city, China excellent tourist city, national garden city, national historical and cultural city, a national civilization city advanced city, the work the comprehensive improvement of the urban environment, "China excellent city living environment prize" and so on the city reputation. Hainan consistent development of the island, environmental protection island is travel health island, new energy, cars are the city's another environmental and health. From the economic development prospects and haikou city car market development scale, in the city to see public transport, taxi, business, environmental sanitation and postal and other public service and other fields, new energy vehicles have a large market space.2.New energy vehicles disadvantages (weakness) analysis(1) the traffic congestion, chaos. Nearly five years motor vehicles and drivers haikou number to sustained growth, road traffic management brought unprecedented pressure. According to information, haikou city road 859 existing with a total length of 1797 km, motor vehicle ownership of 250000 vehicles per day, and are at a 200 rate, of which the amount of private cars is as high as 26%, to the current haikou is obviously can't meet the transportation network of motor vehicle driving demand. Second, the city center area road reconstruction speed slow, to the original road reconstruction is not form system engineering, special is ages ago, DuanTouLu neck road has not been effective reform. Constrain the other major trunk and disperse traffic volume ability. Again, there are pure state road traffic and the lagging problems, such as haikou existing parking lot for cannot accommodate next overmuch vehicles, lead to the driver in some sections on both sides of the parking. This makes originally not wide road become more narrow. There is traffic development, citizens behind haikou travel a single pattern, motorcycles, cars, etc, make travel has become the public preferred way material utilization rate reduced. If the road is sabafish intermediary haikou motorcycles and elegant demeanour car most serious place one of the flood. In the waiting by the shop, packed with motorcycles and elegant demeanour car. They ZhanDao rob guest, obstruct the other vehicles, normal traffic caused easily traffic jam. Haikou traffic police is insufficient, the control points, blind area, people's traffic, too weak, the bus lines concept overlap serious, site layout is not reasonable. Some sections of the serious traffic jam, especially holidays or rush, traffic is chaos.(2) for less than for parking. Data shows, at present, haikou has more than 160000vehicles auto possession, and with more than 20000 cars a year speed increases. The current haikou on an average day with more than 60 new car the road, in a day and added between so many parking obviously is not very practical. In the next few years, whether public or parking garage area will be more strained3.Wide range of reading up to dataHybrid cars advantage is: 1, the hybrid power may according to the average need after the power to determine the maximum power of internal combustion engine, right now in oil consumption is low, less pollution the optimal conditions work. Need high power internal combustion engine power shortage, the battery to supplement; Load for a little while and surplus power can power generation to recharge the battery, due to the internal combustion engine, the battery and sustainable work can constantly, so their trip and charging as ordinary cars. 2, for there is a battery, can be very convenient recycling braking, hill and idle when energy. 3, in the noisy city, can shut by internal combustion engines, battery, to achieve "drive alone zero discharge". 4, with internal combustion engines can be very convenient solve energy consumption of the air conditioning, heating, such as pure electric vehicle defrosting problems met. 5, can use the existing gas station come on, don't have to investment. 6, can let the battery to keep in good working condition, not happened, filling put, prolong the service life, and reduce the cost.Faults: long distance high-speed basic can't save fuel4.PresentationThe essay take about chery Hybird car in china.This kind of car is very useful for every family.because of Hybird car can save petrol .so it’s cheaper than other cars. Sometimes,this kind of cars can use electric it can protect environment also can control the climate change. This very accord with China's national conditions. In the future green cars are very popular to use in the world.翻译新能源汽车作为一种新的汽车产品类型,由于发展时间还不长,技术还不成熟,所以尚未形成一个被广泛认可的概念,但是肯定的是新能源汽车的提出是相对于传统燃料汽车而言的,目前关于新能源汽车的概念根据其定义范围的大小,有狭义和广义两种说法。