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电动汽车的优点英语

发布时间: 2021-04-27 19:14:19

『壹』 关于电动汽车优点及建议的英语短文 急急急急急急 在线等,求大神帮忙

Advantages and Disadvantages of EVs
The most obvious advantage of electric car batteries is that they don't proce the pollution associated with internal combustion engines. However, they still have environmental costs. The electricity used to recharge EV batteries has to come from somewhere, and right now, most electricity is generated by burning fossil fuels. Of course, this proces pollution. But how does the pollution proced by burning fossil fuels to recharge electric car batteries compare to the pollution proced by internal combustion engines? According to the Electric Vehicle Association of Canada, or EVAC, even EVs recharged from coal-powered electric generators cut carbon emission roughly in half. EVs recharged from cleaner forms of electrical power generation, such as hydropower and nuclear plants, can rece carbon emissions to less than one percent of those currently proced by internal combustion engines. So, even in the worst case scenario, cars operated by EV batteries are cleaner than gas-powered cars.
Another important advantage of battery-powered motors over gas-powered engines is the lower cost of the fuel -- that is, electricity for EVs and gas for the internal combustion engines. The United States Department of Energy has calculated that a typical EV can run for 43 miles on a dollar's worth of electricity. Only a substantial drop in the cost of gasoline could give gas-powered cars anywhere near such a low cost per mile.
Yet another advantage of these rechargeable batteries is that they recycle well. Almost 100 percent of these batteries can be recycled, which keeps old batteries from becoming a disposal problem.
The major disadvantage of battery-powered cars, as we mentioned in the last section, is the time required to recharge the batteries. With lithium-ion battery technology, a fully charged EV can travel a distance comparable to an internal combustion engine vehicle with a full tank of gas, but it still needs to be placed on a recharger at the end of that time. At present, this means a drained EV will be out of service for several hours before it's fully recharged. Of course, this is a serious disadvantage. In the future, faster recharging technology may become available, but in the near term, electric cars won't be the vehicles of choice for long trips. Even so, most driving is done relatively close to home and for this reason, battery power will serve as well as gasoline power. A possible solution to the recharging situation may be battery-replacement stations, where instead of recharging your EV you can simply swap your drained battery for a fully charged one. This system would allow batteries to be recharged outside of vehicles and would greatly rece the amount of time required to get an EV up and running again after its battery is fully discharged.
Another disadvantage of electric car batteries is their weight. Because they need to do more than traditional car batteries, electric car batteries need to be linked together into arrays, or battery packs, to provide additional power. These collections of batteries are heavy. The lithium-ion battery pack in a Tesla Roadster weighs about 1,000 pounds (453.6 kg). That's a lot of weight to carry and it can greatly rece the car's range. However, the designers of the Roadster have offset this battery weight with a light frame and body panels. The entire car only weighs 2,690 pounds (1220.2 kg) -- not terribly heavy when you consider that more than a third of that weight is battery.
Given the importance of the battery to an electric car, you might wonder what will happen as that battery grows older. How long will it be able to power the car? And when it finally dies, can it be replaced or is it simply more economical to buy a new car? Read on to find out.
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『贰』 纯电动汽车优点

(一)纯电动汽车有以下优点:①零排放。纯电动汽车使用电能,在行驶中无废气排出,不污染环境。②电动汽车比汽油机驱动汽车的能源利用率要高。③因使用单一的电能源,省去了发动机、变速器、油箱、冷却和排气系统,所以结构较简单。④噪声小。⑤可在用电低峰时进行汽车充电,可以平抑电网的峰谷差,使发电设备得到充分利用。(二)纯电动汽车有以下缺点:(1)续驶里程较短;(2)采用蓄电池及电机控制器使成本较高;(3)充电时间长;(4)目前没有授权服务站,维护成本较高;(5)蓄电池寿命短,几年就得更换。
纯电动汽车发展存在的问题(一)技术方面在技术能力方面国内的汽车制造商虽然纷纷表示涉足新能源汽车研发和生产,但由于具有高科技含量并且能够量产的车型有限,且随着电动汽车竞争的开始加剧,由于研发经费过低,创新动力不足,直接影响我国拥有自主知识产权的电动汽车技术的能力;
二)电池方面“电源”是新能源汽车发展的“技术瓶颈”,当前有两大主要的问题:一是电池成本较高,电池的能量密度较低,充电后的续驶里程较短等问题;二是未来电动汽车市场会否出现真正意义上的电池回收、租赁及二次制造产业链;三是电池接口不同,就像不同品牌的手机充电口不同一样,“标准”的不确定,会对电动车发展造成很大影响等等。
(三)能源方面纯电动汽车本身投资比燃油汽车贵,其使用电力要建设发电厂,建设输电配电设施,还要建设充电站,还要建设蓄电池厂等,(四)配套设施方面费者不选择新能源汽车的重要因素还有配套服务的不健全,配套设施少,配套设施建设的滞后和维护保养不方便,充电站在国内如凤毛麟角,难寻其踪。

『叁』 急需《电动车的利与弊》英语作文

an economically developed coastal cities, in this beautiful city life in the sky was 20 years. The witness to the scene of the historic moment, but in the harmony of the city, there was a scene not in harmony, the electric prevailed. Electric cars a drilling motor vehicles with non-motor vehicle of the legal gaps in the new proct, the electric vehicle of that time there is indeed the Chinese People' s daily on the move brought some facilities. However, things cannot be just one, because everything has two aspects. We would say electric cars the advantages and disadvantages, and only through the only revealed a number of very serious problem. First, let us say electric cars to the people of the benefits. 1, section to environmental protection, and faster than other than motor vehicles soon, and low cost without a licence, driving easily, both young and old suitable "four points mentioned above is electric bicycle in the minds of most people recognized advantage. Now let us look at electric cars the defects and what other places, electric battery should not be permanent, cell damage, replacement rate is high, but battery recovery in the country is still relatively low, this does not fully comply with section to environmental protection concepts, and speed is indeed a bicycle faster than the motor vehicle slow

『肆』 电动汽车的优点有哪些

据我所知,雷丁电动汽车是国内较大的电动汽车制造商,它生产的电动汽车因为质量过硬而畅销国内。我家里也开的雷丁电动汽车,我总结几点,一是因为续航里程远,能达到一百五十公里左右,二是因为车型很好看,比如雷丁s50越野型的,雷丁小王子三厢型的,三是因为雷丁这几年的发展比较注重质量,不管是内饰还是其他车内配置。都搭配合理,美观大方,应有尽有。

『伍』 关于对电动汽车看法的150字英语作文

There is now more of said electric car refers to a pure electric car, which is a single energy storage batteries as a power source for vehicles. It uses batteries as energy storage power source to provide power through the battery to the motor, drive motor running to drive the car forward. From the appearance point of view, the electric car and the daily car and did not see any difference, the main difference between the power source and the drive system. That pure electric vehicle motor of a traditional car engine, battery equivalent to the original tank. Electric car from the chassis, body, battery, motor, controller and battery auxiliary facilities of six parts. Since the motor has good traction characteristics, and therefore does not require a battery vehicle driveline clutch and transmission. Speed is controlled by the controller changes the speed of the motor speed control system can be achieved by conventional cars because of the relatively small impact on the environment, the outlook is widely optimistic, but
The current technology is not yet mature.
目前人们所说的电动汽车多是指纯电动汽车,即是一种采用单一蓄电池作为储能动力源的汽车。它利用蓄电池作为储能动力源,通过电池向电机提供电能,驱动电动机运转,从而推动汽车前进。从外形上看,电动汽车与日常见到的汽车并没有什么区别,区别主要在于动力源及其驱动系统。即纯电动汽车的电动机相当于传统汽车的发动机,蓄电池相当于原来的油箱。 电动汽车由底盘、车身、蓄电池组、电动机、控制器和辅助设施蓄电池六部分组成。由于电动机具有良好的牵引特性,因此蓄电池汽车的传动系统不需要离合器和变速器。车速控制由控制器通过调速系统改变电动机的转速即可实现由于对环境影响相对传统汽车较小,其前景被广泛看好,但
当前技术尚不成熟。

『陆』 用电动车代替燃气车的好处,英语作文120字

Nowadays,the electric bicycle is developing fast,many kinds of which can be seen on the road.It is popular with more and more people.Why?
The reasons are simple.First of all,it is cheaper and more convenient than the motorbike or the car.What's more important is that it saves strength and goes fast,so the rider feels less tired.Also,it is easy for anybody to drive,no matter you are old or young.Finally,it is not just energy-saving but environmentally friendly as well.
However,the electric bike also has its disadvantages.On the one hand,the rider may lose the alternative to do sport,which is not beneficial to health.On the other hand,it may also lead to more traffic accidents in that it goes extremely fast and its emergency brakes dont't woke well.
Personally,I am of the opinion that the electric bicycle has more advantages than disadvantages.As the saying goes,every coin has two sides.As long as the rider drivers carefully,the number of accidents it causes can be reced to the minimum.In conclusion,the electric bicycle is a promising means of transportation.

『柒』 关于新能源汽车的英文介绍

this paper firstly provides the connotation of new energy automobile,and then gives us an introction of the development of the new energy automobile,and on the foregoing basis summarizes those factors that will restrict the development of the new energy automobile,and in the end proposes relevant measures for the development therein.

『捌』 纯电动汽车的优点

1.环保:纯电动汽车在运行过程中可以做到零污染,完全不排放污染大气的有害气体。即使按所耗电量换算为发电厂的排放,造成的污染也少于传统汽车,因为发电厂的能量转换率更高,而且集中排放可以更方便地假装减排治污设备。
2.省钱:国家和地方政府给予电动汽车最高11.4万元的补贴,这一举措使电池成本居高不下的电动汽车的售价能够下降到与传统汽车相当的水平。而在油价高企的今天,电动汽车的运行费用是要远小于传统汽车的。
3.噪音小:电动机在运行中的噪音和振动水平都要远远小于传统内燃机。在怠速和低速情况下,电动汽车的舒适性要远高于传统汽车,随着速度的提升,胎噪和风噪成为噪音的主要来源,两者才回到同一水平上。电动汽车的这一特点对于提升汽车的NVH性能无疑会有很大的帮助。
4.节能:电动汽车的百公里耗电量为15-20kwh,算上发电厂和电动机的损耗之后,百公里的能耗约为7公斤标准煤。传统汽车按百公里耗油量10L计,能耗约为10公斤标准煤。并且在城市的拥堵环境里,电动汽车的节能优势会进一步放大。
5.结构简单,维护方便:比较一下电动汽车和传统汽车的底盘、动力总成,你会发现,电动汽车的结构是如此的简单。电动汽车不再需要复杂的传动机构和占据了大量空间的排气系统,维护起来方便了很多,同时空间也得到了大幅的扩展。并且,电动汽车还能方便地实现四轮驱动。
6.加速快:电动机在全部转速范围内都可以输出最大扭矩,因此起步加速非常迅猛。而传统汽车一般要到2000转才能输出最大扭矩。希望能帮到你,望采纳,谢谢!!!

『玖』 电动汽车优点

一、环保
纯电动汽车在运行过程中可以做到零污染,完全不排放污染大气的有害气体。即使按所耗电量换算为发电厂的排放,造成的污染也少于传统汽车,因为发电厂的能量转换率更高,而且集中排放可以更方便地假装减排治污设备。
二、省钱
2014年,国家和地方政府给予电动汽车最高11.4万元的补贴,这一举措使电池成本居高不下的电动汽车的售价能够下降到与传统汽车相当的水平。而在油价高企的今天,电动汽车的运行费用是要远小于传统汽车的。
三、噪音小
电动机在运行中的噪音和振动水平都要远远小于传统内燃机。在怠速和低速情况下,电动汽车的舒适性要远高于传统汽车,随着速度的提升,胎噪和风噪成为噪音的主要来源,两者才回到同一水平上。电动汽车的这一特点对于提升汽车的NVH性能无疑会有很大的帮助。
四、节能
电动汽车的百公里耗电量为15-20kwh,算上发电厂和电动机的损耗之后,百公里的能耗约为7公斤标准煤。传统汽车按百公里耗油量10L计,能耗约为10公斤标准煤。并且在城市的拥堵环境里,电动汽车的节能优势会进一步放大。
五、结构简单,维护方便
比较一下电动汽车和传统汽车的底盘、动力总成,你会发现,电动汽车的结构是如此的简单。电动汽车不再需要复杂的传动机构和占据了大量空间的排气系统,维护起来方便了很多,同时空间也得到了大幅的扩展。并且,电动汽车还能方便地实现四轮驱动。
六、加速快
电动机在全部转速范围内都可以输出最大扭矩,因此起步加速非常迅猛。而传统汽车一般要到2000转才能输出最大扭矩。

『拾』 用英语写一篇关于电动汽车的优点以及建议的短文

the good thing about electronic automobile car is that it is driven by electricity instead of petroleum. It does not give out bad smoke and does not pollute the environment.
It is smaller in size and the road get less congested.

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