自动驾驶 47
本篇文章给大家谈谈自动驾驶汽车优点英语作文,以及对自动驾驶汽车的看法英语作文100字对应的知识点,希望对各位有所帮助,不要忘了收藏本站喔。 本文目录一览: 1、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.


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


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 produce 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 produces pollution. But how does the pollution produced by burning fossil fuels to recharge electric car batteries compare to the pollution produced 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 reduce carbon emissions to less than one percent of those currently produced 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 reduce 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 reduce 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.

























新能源汽车的优点 二:省钱


新能源汽车的优点 三:噪音小


新能源汽车的优点 四:节能


新能源汽车的缺点 一:充电难


新能源汽车的缺点 二:续航里程短


新能源汽车的缺点 三:充电慢


新能源汽车的缺点 四:售后服务有待加强


以上就是由电动邦我给您分析得关于新能源电动汽车的四大优缺点 。 不知道是否对你们有所帮助,不过时代在更新,相信新能源电动汽车以后的发展肯定会越来越好,并且完善功能。

求帮写英语作文 写未来的智能汽车(smart car)

Many years later, we are driving smart cars on the road. Smart cars are amazing. They can take you sightseeing in the sky or to the sea.

Whenever you go to school and mom and dad can't send you to school, the smart car will drive automatically. As long as you tell its address, the smart car will take you to the place you want to go. Send it to school and tell it to be smaller, smaller , make the smart car as small as a mobile phone, and then put it in the bag, you can go to school.

After the holiday, we can take the smart car to travel, go to the city or go to the countryside. When there is a traffic jam, the smart car will grow a pair of wings and fly past the vehicles in front. When you have trouble finding a place to stay, the smart car becomes a place to stay for the night.

When you are at the seaside, the smart car will become a submarine and take you to play in the sea. In the submarine, the window opens slowly. I can touch the sand and stone with my hand, and then I touch the small fish. Then you will find that the water outside the window will not flow in.

Do you want a car like this?







无人驾驶汽车的正负面影响:Driverless vehicles can greatly reduce the occurrence of traffic accidents, thus reducing the probability of traffic congestion caused by accidents. Secondly, smart cars can monitor real-time road conditions through satellite navigation, so as to plan the best route, rather than the phenomenon of vehicles getting together now.

Driverless technology greatly depends on satellite navigation technology. Once the signal is disturbed or even interrupted, driverless is impossible to talk about. Imagine that Google driverless car can't receive the information from Google map on the way, wouldn't it lead to great disaster.




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