28 July, 2008

इलैक्ट्रिक car

General Motors Introduces First Mass-Produced Electric CarEight decades after the American auto industry turned away from the electric car in favor of gas-powered vehicles, the giant General Motors Corporation (GM) made a heralded return to the market with the first mass-produced version in the modern era, the EV1. The completely battery-powered $34,000 car, in development by GM since the late 1980s, was delivered amid fanfare to select dealerships in Arizona and southern California on December 5, 1996.Boasting a 137-horsepower engine that can silently accelerate from 0 to 97 km/h (0 to 60 mph) in less than nine seconds, the EV1 (Electric Vehicle 1) is hailed by some observers as an automotive breakthrough. With few moving parts there is little regular maintenance required and no tailpipe emissions at all. Engineered to be ultralight and extremely aerodynamic to conserve energy, the EV1 is the first electric car to be made entirely from scratch as a battery-powered vehicle since the early years of the century, when as many as one-third of automobiles were electric. Most current electric cars are converted gas-powered vehicles, such as an electricity-powered Ford Ranger introduced in the summer of 1996.The EV1 was first shown to the public as a prototype model called Impact at the 1990 Los Angeles Auto Show. Consumer trials followed, as GM worked to overcome the challenges posed by an electric car: the limited travel range before needing a recharge, size and weight restrictions, power-draining auxiliaries (such as heating systems), and the lack of an infrastructure of charging stations—the “gas stations” of the 21st century, according to electric vehicle backers.But there are also critics of the EV1, who point to the automobile's relatively high cost and its limited range of 113 to 145 km (70 to 90 m) before its lead-acid batteries must be recharged. The special device that can recharge the EV1 in about three hours costs an extra $2000. (Fully charging from a regular household outlet takes about 15 hours.) Many of the doubters believe that battery technology is still too limited and that the EV1 risks ultimately hurting the cause of alternative-fuel vehicles. The more advanced nickel-metal hydride battery, which can hold a greater charge than a lead-acid battery, is just now becoming commercially available. Others argue that hybrid cars—combining electric power with internal-combustion technology—holds the best promise for the future of the automobile.Other criticisms of the EV1 include the fact that the sporty vehicle is small, holding just two people. Because electric cars generally do not perform well in cold weather, the EV1 is available only in a few warm-climate cities to start out—Los Angeles and San Diego in California, and Phoenix and Tucson in Arizona. GM plans to make and lease—rather than sell—only a few thousand cars in the initial rollout.Critics of electric cars achieved a victory in March 1996, when California's Air Resources Board (ARB) pulled back its controversial regulations that would have forced major auto companies to make zero emission vehicles (ZEVs) account for at least 2 percent of their sales in the state starting in 1998. While the ARB backed down on the first restriction, after being heavily lobbied by auto company representatives who argued that the technology was not adequately advanced, it retained the ambitious requirement that 10 percent of all new car fleets be ZEVs by 2003. The air quality of California's urban areas is among the worst in the United States, and other pollution-plagued regions around the country are beginning to pass similar electric-car measures to address the problem.Beyond the threat of air quality regulations, General Motors is eyeing the electric vehicle as an important new product. They believe that consumers concerned about air pollution levels and rising gasoline prices will be interested in purchasing electric cars. The world's largest automobile manufacturer, GM was able to devote the resources necessary for such a costly, large-scale project—an estimated $350 million in development costs. The company has made the EV1 such a priority that it created a special division for the vehicle and bestowed the corporate name of General Motors on a car for the first time in history (although it is being marketed and distributed by GM's Saturn division).The EV1 is only the first of a variety of low- and zero-emission vehicles that are expected from auto manufacturers in the next several years. The Honda EV, powered by nickel-metal hydride batteries, is expected in 1997, and electric cars from automakers such as Ford, Toyota, and Chrysler are planned for release no later than 1998. GM also hopes to expand its line of electric cars in the near future, including an electric Chevrolet pickup truck targeted at commercial vehicle fleets in 1997.

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