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Friday 3 February 2012

Smart Fortwo Electric Drive - Electric Car

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2nd Generation fortwo ED 

The second-generation Smart fortwo electric drive production began in November 2009 in France. These cars use a lithium-ion battery from Tesla Motors with a capacity of 14 kilowatt-hours (50 MJ). The range of a fully charged battery is up to 135 kilometres (84 miles) on the New European Driving Cycle (NEDC) cycle.

In July 2011 an agreement was reached between Daimler AG and Robert Bosch GmbH to develop and produce innovative traction motors for electric vehicles. Based on this joint venture, Daimler expects to use the improved traction motors with the new generation of Smart electric drive cars which are scheduled to go on sale in early 2012.

Specifications
Power: 20 kW (27 hp) continuous; peak power output of 30 kW (40 hp) for approximately 2 minutes
Torque: 120 newton metres (89 ft·lbf)
Battery capacity: 16.5 kW·h lithium-ion battery
Economy: 12 kW·h/100 km, also reported to be 200 W·h/mi
Range: 135 kilometres (84 miles) on the (NEDC cycle)
Top speed: 100 kilometres per hour (62 miles per hour)

The lithium-ion battery pack takes three hours to charge from 20 to 80 percent of its capacity with a standard 220 V outlet. It can also can be charged using a common household 110 V outlet. The car has a 3.3 kW on-board charger for this "level 1 and 2" charging. Smart claims a 0-to-60 kilometres per hour (37 mph) time of 6.5 seconds, the same as for the gasoline version. It has a single fixed-gear ratio transmission and is about 308 lb (140 kg) heavier than a gasoline-powered Fortwo.

The ED was trialled in the U.S. from January 2011 with the first customer taking delivery in Washington, D.C. A total of 250 units were made available for leasing at a price of US$599 per month for a period of 48 months and 60,000 kilometres (37,282 mi), plus US$2,500 due at signing. This pricing is before taxes or any government tax credits or rebates available. Daimler announced that United States sales are scheduled for January 2012.

The Environmental Protection Agency officially rated the Smart ED combined fuel economy at 87 miles per gallon gasoline equivalent (mpg-e) (2.7 L gasoline equivalent/100 km; 104 mpg-imp gasoline equivalent), 94 mpg-US (2.5 L/100 km; 113 mpg-imp) city and 79 mpg-US (3.0 L/100 km; 95 mpg-imp) highway. EPA's official all-electric range is 63 miles (101 km), but in favorable conditions in an urban environment at warm temperatures the carmaker claims the Smart fortwo ED can reach up to 98 miles (158 km).

In July 2011, Car2Go announced that a fleet of Smart EDs will be deployed into carsharing service in San Diego before the end of 2011. The company stated that the carsharing electric cars will have a range of 84 miles (135 km), and, based on their experience with usage in other cities, they will most likely need to be recharged every two or three days. When reserving the electric car online, San Diego Car2Go members will be able to see the battery's state of charge, so if the customer wants to go for an extended drive, the option is available to find the right car for that trip. In November 2011 fleets of 300 Smart EDs each were deployed in San Diego and Amsterdam as part of the Car2Go service.

France registered a total of 34 Smart EDs in 2010 and 52 for 2011.

Third generation

Unveiled at the 2011 Frankfurt Motor Show the third-generation Smart ED is scheduled to be launched by September of 2012 and is planned to be available in 30 countries worldwide. A close-to production version was unveiled at the September 2011 Frankfurt Motor Show. Key differences from the 2nd-gen model include a more powerful electric motor, giving better acceleration and top speed, a new lithium-ion battery pack with an extended range to 140 kilometres (87 mi) and a quick-charge option will be available, other features include an enlarged grille opening, stylish LED daytime running lights, wider door sills, some minor modifications to the rear, fully automatic air conditioning with pollen filter and pre-air conditioning. Several features will be controlled remotely through a smart drive application for the iPhone.
In Germany the Smart ED will be available for €16,000 (around US$22,400) plus a monthly fee of €60 (US$84) for the battery rental. Online reservations are scheduled to begin in the fourth quarter 2011.

Specifications
Power: peak power output of 55 kW (74 hp)
Torque: 130 nm (96 ft·lbf)
Top speed of 120 km/h (75 mph)
0 to 100 km/h (0 to 60 mph) in less than 13 seconds and 0 to 60 km/h (0 to 37 mph) in 5 seconds
Battery capacity: 17.6 kW·h lithium-ion battery by Deutsche ACCUmotive
Range: 140 km (87 mi)

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