• 博客等级:
  • 博客积分:0
  • 博客访问:39,342
  • 关注人气:11
  • 获赠金笔:0支
  • 赠出金笔:0支
  • 荣誉徽章:
正文 字体大小:

A sparky new motor 汽车行业的新型助推器

(2010-10-13 21:59:02)


分类: 我的译文

Electric cars

A sparky new motor

The first mass-market electric cars are arriving in showrooms. They represent a big gamble for carmakers

Oct 7th 2010 | Paris


THE star of this week’s Paris Motor Show was a Jaguar supercar. The C-X75 can accelerate to 100kph (62mph) in just 3.4 seconds and has a top speed of 330kph. It is powered by batteries that are recharged by miniature diesel-sipping jet turbines. Although it is a mere experimental vehicle, the excited response shows that carmakers have come to see electric vehicles as part of their future. How large a part will depend on how drivers react to the rather less racy electric offerings from big producers such as General Motors (GM), Mitsubishi, Nissan and Renault.



The first mass-market electric cars are now arriving in showrooms in America, Europe and Japan (see table). They come in three flavours. Pure electric vehicles like Nissan’s Leaf can be driven for 150km or so before they need to be recharged for six to eight hours. Range-extenders like GM’s Volt (the Ampera in Europe) are powered by an electric motor that can be recharged either from the mains or by an on-board internal-combustion engine. Then there are familiar hybrids like the Toyota Prius, now being adapted to take a charging cord and with a longer electric-only range.



Mitsubishi was one of the first away, launching its electric i-MiEV in Japan in April. Production of European models began on October 6th, including versions for France’s PSA group, which will sell the cars as a Peugeot iOn or Citroën C-ZERO. But GM and the Renault-Nissan alliance are making the biggest push into the mass market. The latter will launch four Nissan and four Renault electric models in the next two years. Carlos Ghosn, head of Renault-Nissan, believes that by 2020 one in ten new cars in Europe will be electric, while hybrids, such as the Prius, will have a similar share of the market.

三菱是最先进入这个市场的汽车制造商之一,该公司于4月份在日本发布了旗下的一款电动汽车i-MiEV, 并与10月6日发布了欧洲型号的电动汽车,其中包括为法国标致雪铁龙生产的型号,该型号将贴标致,雪铁龙商标进行销售。但是通用和雷诺-尼桑才是推动量产电动汽车市场最有力的制造商。在未来的两年内,雷诺-尼桑将推出四款尼桑和四款雷诺电动汽车。雷诺-尼桑首席执行官卡洛斯.格森相信,格森相信,截止2020年,欧洲市场上的新车十辆里有一辆将是电动汽车,而就像普锐斯这样的混合动力汽车也差不多是这个情况。


Governments are solidly behind the new vehicles, which they see as essential for bringing down carbon-dioxide emissions and reducing pollution in cities. The Volt was one of the reasons why the White House propped up GM in 2009 when the carmaker entered bankruptcy. Dan Akerson, GM’s new chief executive, says the company is committed to electrification and has other electric cars under development. Generous government subsidies are on offer: American buyers will be able to obtain up to $7,500 towards the purchase of an electric car.



Mr Ghosn reckons incentives will be needed for another four years or so. He thinks electric cars will compete without subsidies against conventional cars only when production reaches about 500,000 per model. It is far from sure that cash-strapped governments will keep their wallets open that long. And other questions loom over the new electric cars.



The big one is “range anxiety”. Drivers are not used to thinking precisely about how far they will drive before returning home. Electric cars (at least the ones without petrol engines to top up the battery) demand that they do. And some tests have suggested that manufacturers’ claims about the ranges of their vehicles are optimistic. A car that is full of passengers and running the heating or air-conditioning will drain the battery more quickly. Yet the manufacturers believe these concerns can be overcome.



So far, BMW has carried out the biggest test of electric motoring. It leased 600 electric Mini Es to drivers in Britain, Germany and the United States. Before getting their cars most drivers said they expected the 150km range to be restrictive. But the driving patterns of Mini E users in Berlin turned out to differ only slightly from those in ordinary Mini s. Even in California, land of freeways and long commutes, Mini E drivers clocked up 48km a day, not far behind the American average of 64km. Most Mini E users recharged their cars at home, and some did so only two or three times a week rather than every night. BMW concludes from these tests that electric cars are suitable for most people and that range anxiety fades as drivers get used to them.



Another study, by Deloitte, a consultancy, found that three-quarters of Americans would not consider buying an electric car unless it had a range of 300 miles. But the carmakers do not have to convince everyone at the outset. In Deloitte’s survey, those who were inclined to buy tended to be early adopters of new technologies. They were typically young with a much higher-than-average household income. They were living in an urban or suburban area—commonly southern California—and had a garage with electrical power where they could recharge the car. Such drivers would probably treat electric vehicles as second cars, and prize them for their green show-off value. Mr Ghosn sees electric drive as “a complementary technology”.



A further problem, which government subsidies have not entirely eliminated, is “sticker shock”. Electric cars are expensive. BMW reckons they will be a premium product, which is why it plans to launch a light electric citycar with a fancy composite body in 2013. Renault is trying to hold down prices by separating the cost of the battery from its new electric car, the Fluence. In Britain the car will cost around £18,000 ($28,660) after a £5,000 government subsidy—about the same as a diesel-powered equivalent. Buyers will lease the battery for about £80 a month. Renault believes drivers who are used to paying regularly for fuel will tolerate this charge. Leasing the battery should also alleviate concerns about its reliability. GM is responding to the same concern by guaranteeing the battery in its Volt for eight years or 100,000 miles.



One issue that is important to many buyers is how the value of electric cars will hold up in the second-hand market. The answer will not become clear for several years. Some in the industry think that a shortage of cars could drive up prices, at least at first. But they could plummet if the batteries cause problems or users find the range of the vehicles too limiting.



Electric cars are evolving quickly. Although he refuses to reveal figures, Mr Ghosn says the cost per kilowatt-hour (kWh) of battery capacity for Renault-Nissan cars has fallen by half in four years. Earlier this year Boston Consulting Group estimated that electric cars will not be fully competitive until costs fall to about $200 per kwh. That would substantially reduce the cost of the 24 kwh battery used by the Nissan Leaf. According to industry rumours, Renault-Nissan has got its costs down to below $400 per kwh, so if it can continue this progress its cars will become much more competitive.



Other technical improvements are on the way, including systems that could charge a battery in as little as five minutes. Such developments should make electric cars more usable and increase their popularity. But that will cause another problem: early adopters may find that technology changes so rapidly that their shiny new electric cars soon seem old-fashioned.






阅读 评论 收藏 禁止转载 喜欢 打印举报/Report
  • 评论加载中,请稍候...




    新浪BLOG意见反馈留言板 电话:4000520066 提示音后按1键(按当地市话标准计费) 欢迎批评指正

    新浪简介 | About Sina | 广告服务 | 联系我们 | 招聘信息 | 网站律师 | SINA English | 会员注册 | 产品答疑

    新浪公司 版权所有