英语翻译二、新能源汽车发展方向现在对新能源汽车有准确的定义,指采用非常规的车用燃料作为动力来源（或使用常规的车用燃料、采用新型车载动力装置）,综合车辆的动力控制和驱动方

英语翻译二、新能源汽车发展方向现在对新能源汽车有准确的定义,指采用非常规的车用燃料作为动力来源（或使用常规的车用燃料、采用新型车载动力装置）,综合车辆的动力控制和驱动方
英语翻译
二、新能源汽车发展方向
现在对新能源汽车有准确的定义,指采用非常规的车用燃料作为动力来源（或使用常规的车用燃料、采用新型车载动力装置）,综合车辆的动力控制和驱动方面的先进技术,形成的技术原理先进、具有新技术、新结构的汽车.新能源汽车包括混合动力汽车、纯电动汽车（BEV,包括太阳能汽车）、燃料电池电动汽车（FCEV）、氢发动机汽车、其他新能源（如高效储能器、二甲醚）
汽车等.下面主要介绍以下几种：
1、混合动力电动车
混合动力电动汽车使用内燃机和电动机作为动力,由于它有动力源,不需要在能量存储装置中存储大量电能,这克服了电动车行驶距离短的缺点,而且其燃油经济性明显优于常规汽车.节约了不可再生能源,同时极大的降低了尾气的排放,是目前电动汽车市场的主流.然而将两套系统同时安装于本来只装一套系统的汽车上,不仅加大了汽车本身的重量,也增加了整体工艺、控制等方面的要求.因而混合动力车辆的结构复杂,控制技术要求很高,相应的成本与售价也较高.
另外它还是用到了传统的内燃机,其消耗不可再生能源在所难免,在改善能源利用率和保护环境方面的表现还不尽人意.
2、纯电动车
纯电动整车是以电动机代替燃油的内燃机,使用电动机作为动力,用电化学蓄电池作为能源储存单元,具有不依赖于石油,无噪声和振动、操作性能好、效率高等突出优点.电力驱动的优点是不使用燃料、零排放且噪声低；同时因使用单一的电能源,电控系统相比混合电动车大为简化,既降低了成本,又可补偿电池的部分价格.然而电化学蓄电池的能量密度和功率密度相对而言比较小,续航能力低,目前纯电动汽车只能用于旅游观光等短程行驶.虽然近来高性能电池如锂离子电池的发展取得很大成功,但其成本较高,使得纯电动汽车的进一步推广存在非常大的困难.图2是纯电动机结构图.
3、燃料电池电动汽车
燃料电池电动汽车以电动机为动力,用燃料电池作为能源转换装置,利用氢气作为燃料.发展燃料电池汽车的困难在于氢气燃料的存储,燃料电池的尺寸及其高的生产成本,研制高性能的质子交换膜和复杂的控制系统等,采用燃料电池作电源的电动汽车称为燃料电池电动汽车FCE(Fuel Cell Electric Vehicle),最早的FCEV 是燃料电池大客车FCEB (Fuel Cell Electric Bus).早期的FCEV 的燃料电池本身和它的附属设备的质量重,体积大,占据了大客车很大部分的装载空间,几乎没有乘客乘坐的空间,给FCEV 的总布置带来很 大的困难.与传统内燃机汽车相比,F C E V 不通过热机过程,不受卡诺循环的限制,具有能量转化效率高、环境友好等内燃机汽车不可比拟的优点,同时仍然可以保持传统内燃机汽车高速度、长距离行驶和安全、舒适等性能,被认为是21 世纪首选的洁净、高效运输工具.国内外专家普遍认为燃料电池技术将成为21 世纪汽车工业核心.

英语翻译二、新能源汽车发展方向现在对新能源汽车有准确的定义,指采用非常规的车用燃料作为动力来源（或使用常规的车用燃料、采用新型车载动力装置）,综合车辆的动力控制和驱动方
Second, the direction of development of new energy vehicles
Now for the new energy vehicles have a precise definition , refers to the use of unconventional vehicle fuel as a power source ( or the use of conventional vehicle fuels , the use of new -vehicle power unit ) , power control and drive advanced technologies integrated vehicle form the principle of advanced technology , with new technology, new structure of the car. New energy vehicles including hybrid vehicles, pure electric vehicles (BEV, including solar car ) , fuel cell electric vehicle (FCEV), hydrogen engine vehicles, other new energy sources ( such as high energy storage devices , dimethyl ether )
Cars. The following describes the following:
A hybrid electric vehicle
Hybrid electric vehicles use an internal combustion engine and a motor as power , the power source because it has no need to store large amounts of power in the energy storage device , an electric vehicle which overcomes the disadvantages of the short distance traveled , fuel economy and significantly better than conventional vehicles. Saving a mainstream electric car market of non-renewable energy sources, while greatly reducing exhaust emissions , is present. However, the two systems will be installed on a system originally installed only cars, not only increased the weight of the car itself , but also increases the overall process control requirements. Thus the complex structure of the hybrid vehicle control high technical requirements, the corresponding costs and the price is higher .
In addition, it is used in the conventional internal combustion engine , which consumes non-renewable energy is inevitable, in improving energy efficiency and environmental protection performance was unsatisfactory.
2 , pure electric vehicles
Pure electric vehicle is a motor fuel engine instead of using the motor as a power , electrochemical batteries as energy storage unit , with no dependence on oil , no noise and vibration , operating performance, high efficiency and outstanding advantages . Electric drive has the advantage of not using fuel , zero-emission and low noise ; simultaneously by using a single electric energy , electric control system greatly simplified compared to hybrid electric vehicles , not only reduces the cost of part of the price , but also to compensate for the battery. However, the electrochemical battery energy density and power density is relatively small, low endurance , pure electric vehicles currently used only for tourism and other short-haul travel . Although the recent development of high-performance batteries , such as lithium-ion batteries was a great success , but its high cost , making further promote pure electric vehicles there is a very great difficulties . FIG 2 is a configuration diagram of a motor pure .
3 , fuel cell electric vehicles
Fuel cell -powered electric vehicles with motors , fuel cells as an energy conversion device , the use of hydrogen as a fuel. Difficulties in the development of fuel cell vehicles is the storage of hydrogen fuel , fuel cell size and high production costs , developing high-performance proton exchange membrane and the complex control system, the use of fuel cells as a power source for electric vehicles called fuel cell electric car FCE (Fuel Cell Electric Vehicle), the first FCEV fuel cell buses FCEB (Fuel Cell Electric Bus). Quality early FCEV fuel cell itself and its ancillary equipment heavy , bulky, occupy a large part of the bus loading space , almost no space for passengers , to bring the total layout FCEV great difficulties . Compared with the traditional internal combustion engine vehicles , FCEV not through the process of heat engine , without limitation Carnot cycle , with the advantages of high energy conversion efficiency and environmental friendliness unparalleled internal combustion engine vehicles , while still maintaining the traditional internal combustion engine vehicle speed, long-distance running safety , comfort, and other properties, is considered the preferred 21st century clean, efficient transport. Domestic and foreign experts believe that fuel cell technology will become the core of the automotive industry in the 21st century .