新能源汽车英语讲稿专业知识讲座

1、本文档所提供的信息仅供参考之用，不能作为科学依据，请勿模仿。文档如有不当之处，请联系本人或网站 删除。 Development Status Classification Problems Summary 本文档所提供的信息仅供参考之用，不能作为科学依据，请勿模仿。文档如有不当之处，请联系本人或网站 删除。 Pure Electric Vehicle Hybrid Electric Vehicle Fuel-cell Vehicle clean-energy vehicle Natural gas and liquefied petroleum gas vehicle Methanol-fue

2、led car Hydrogen- powered Vehicle Classification 本文档所提供的信息仅供参考之用，不能作为科学依据，请勿模仿。文档如有不当之处，请联系本人或网站 删除。 Pure Electric Vehicle As the name implies the pure electric vehicles are the cars use electric power. Most of them use electric directly, also have some others use four wheels as the four motors roto

3、rs. Advantage: no exhaust, no pollution, technology is relatively simple and mature. Disadvantage: the energy stored in the battery unit weight too little, and the battery manufacturing cost is too high, some even more expensive than the car. Development Status 本文档所提供的信息仅供参考之用，不能作为科学依据，请勿模仿。文档如有不当之处

4、，请联系本人或网站 删除。 Fuel-cell Vehicle Fuel-cell vehicle is that car use hydrogen or others as fuel, through the chemical reaction create electric current to drive the car. Advantage: Fuel-cells energy conversion rate is twice the internal combustion energy, or even higher; the chemical reaction progress o

5、f fuel- cell does not produce harmful exhaust; running smoothly, no noise, so the fuel-cell vehicle is a kind of ideal vehicle . Disadvantage: manufacturing cost is too high, current technology is difficult to achieve the industrialized. 本文档所提供的信息仅供参考之用，不能作为科学依据，请勿模仿。文档如有不当之处，请联系本人或网站 删除。 Hydrogen-p

6、owered Vehicle BMW Hydrogen 7 Hydrogen-powered vehicle is a truly zero- emission vehicle, emissions of pure water, which has a non-polluting, zero emission, is the best alternative to conventional car. Advantage: rich source of hydrogen; the emission is water, no pollution. Disadvantage: The high ma

7、nufacturing cost of hydrogen fuel cells, and hydrogen fuel storage and transport in accordance with the technical conditions is very difficult. 本文档所提供的信息仅供参考之用，不能作为科学依据，请勿模仿。文档如有不当之处，请联系本人或网站 删除。 Natural gas and liquefied petroleum gas vehicle Most of this kind of vehicle use double fuel system, nam

8、ely a compressed natural gas or liquefied petroleum gas systems, and a gasoline or diesel combustion systems, can easily transition from one system to another system, this car is mainly used for urban public transport vehicles. Advantage: Gas single component, high purity, uniform mixing with air an

9、d burned completely, CO and particulate emissions are low, the engine starting at low temperature and better running performance. Disadvantage: Its transport performance is poor than the liquid fuel, low volumetric efficiency of the engine, the ignition delay is longer and dynamic decreased. 本文档所提供的

10、信息仅供参考之用，不能作为科学依据，请勿模仿。文档如有不当之处，请联系本人或网站 删除。 Methanol-fueled car Methanol vehicles is methanol as the primary fuel vehicles, but also use gasoline or gasoline- alcohol mixed fuel as fuel, can be converted by the average car. Advantage: complete combustion, low volatility, emissions of hydrocarbons,

11、nitrogen oxides and carbon monoxide and other harmful gases little. Disadvantage: Its lower energy with almost the same distance twice than gasoline consumption, which requires a large tank. 本文档所提供的信息仅供参考之用，不能作为科学依据，请勿模仿。文档如有不当之处，请联系本人或网站 删除。 Hybrid electric vehicle refers to those using conventiona

12、l fuels, but with the motor/engine to improve power output and low fuel consumption of the vehicle. Advantage: because of the battery, you can very easily recover braking, downhill, idle energy; when battery driven individually, to achieve zero emissions. Disadvantage: Mainly rely on fossil fuels, i

13、ts just the products of the transitional period of new energy automotive. Hybrid Electric Vehicle 本文档所提供的信息仅供参考之用，不能作为科学依据，请勿模仿。文档如有不当之处，请联系本人或网站 删除。 Problem 1. Battery technology is not mature enough, car traveling a short distance with the battery, if add the battery, the weight of car will increa

14、se, the efficiency will decline. 2. Large current discharge easily result the battery heating, causing the battery to burn. 3. Short circuit the battery prone to explosion 4. Battery charging time is too long. 本文档所提供的信息仅供参考之用，不能作为科学依据，请勿模仿。文档如有不当之处，请联系本人或网站 删除。 Summary Today, energy shortages, environmental pollution is getting worse. clean energy veh