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Home » Green Car News » Mercedes

Mercedes A-Class E-CELL

15 Sept 2010
 

Mercedes A-Class E-CELL Fuel cell green car

 

 

 

 
Following the B-Class F-CELL fuel-cell car, Mercedes-Benz now introduces the new A-Class E-CELL as its second electric car built in series-production conditions. The five-seater with battery-powered electric drive meets all the requirements for a family car for everyday use. It is based on the five-door version of the current A-Class, and features a generous interior space and luggage compartment for maximum versatility. No compromises have been necessary in terms of space and variability, with compact storage batteries that are located extremely well-protected and in a space-saving way in the vehicle underbase. The car’s two high-efficiency lithium-ion batteries provide a range of over 124 miles (NEDC). The car is powered by a quiet, locally emission-free electric drive with peak output of 95 hp, developing a high torque of 290 Nm. A total production run of 500 A-Class E-CELL cars will be built at Rastatt from autumn 2010. The vehicles will be leased to selected customers in several European countries, including Germany, France and the Netherlands.

Five doors, five seats, the same luggage compartment volume as in the internal combustion engine A-Class (435 to 1370 litres), a 350-kilogram payload measured as per the relevant EC directive and high variability of the interior and luggage compartment: this is what makes the new A-Class E-CELL a family car for everyday use. The sophisticated sandwich structure provides both an extremely comfortable in-car environment and maximum protection for passengers and components in the event of a collision.

“Over our almost 125-year history, we have accumulated extensive experience and know how in the area of electric vehicles, including both battery and fuel-cell. This know how has already provided the basis for getting two electric cars for everyday use onto the road: the smart fortwo electric drive, and the B-Class F-CELL. The story now continues with our third electric car, the A-Class E-CELL., whose start of production is scheduled for autumn this year. The new car is a battery-driven electric Mercedes that enlarges our portfolio and offers our customers the kind of driving pleasure, comfort and safety that they have come to expect”, says Dr Thomas Weber, the Daimler AG Board of Management member responsible for Group Research and Development Mercedes-Benz Cars.

Driving pleasure with zero emissions

Along with exemplary safety, optimum comfort and a high level of suitability for daily use, the A-Class E-CELL also offers other strengths not always found in contemporary electric cars: agility and driving pleasure. The features are based on a low centre of gravity, partly the result of the installation of the batteries under the passenger compartment, in the “sandwich” structure of the vehicle floor. This gives the car excellent road-holding and sprightly handling characteristics – qualities that clearly set the A-Class E-CELL apart from other electric cars, which often have heavy and bulky storage batteries located in the boot or by the rear seat. Another benefit from this installation location is the provision of best-possible protection against the intrusion of structural components in the event of a head-on collision or impact from the rear. This is because the batteries are located outside the vehicle body’s deformation zones. The high-stability characteristics of the sandwich structure of the floor also provide outstanding protection for both battery and passengers in a lateral collision scenario.

High-performance electric drive with long range

The electric drive of the A-Class E-CELL is a permanent-field synchronous unit developing a peak output of 95 hp, a continuous power rating of 68 hp and a high maximum torque of 290 Nm, as expected for an electric drive, available right from the first revolution. This makes the A-Class E-CELL an outstandingly assured and dynamic performer on the road, taking just 5.5 seconds to accelerate from 0-37 mph. A kick-down function is used to deliver maximum acceleration, according to the current charge level and battery temperature. Maximum speed is electronically set at 93 mph.

The energy storage units are two high-performance lithium-ion batteries based on high-voltage technology. The advantages of lithium-ion batteries include their compact dimensions and significantly higher efficiency in comparison with nickel-metal-hydride (NiMH) batteries. They offer 30 percent more energy density than NiMH technology, and 50 percent more power density. Other benefits include high charging efficiency and a long service life. The combined energy capacity of the two lithium-ion batteries is a total of 36 kWh. With fully charged batteries, the A-Class E-CELL has a range of over 124 miles (NEDC).

Profile description and technical data for the A-Class E-CELL

  • Locally emission-free, exclusively battery-powered electric vehicle with a range of more than 200 kilometres NEDC (new European driving cycle).
  • Five-seater compact car meeting all requirements for everyday use.
  • Two liquid-cooled lithium-ion batteries with 36 kWh storage capacity.
  • Battery system location leaving spacious interior and luggage compartment completely unobstructed.
  • Power electronics with integrated DC/DC converter for 12-volt supply.
  • Front axle drive.
  • THERMOTRONIC air-conditioning and pre-start climate control via charging plug.
  • Series production run of 500 units to start in autumn 2010.
Drive system Electric drive, lithium-ion battery
Continuous power rating (hp) 68
Peak power (boost) (hp) 95
Rated torque (Nm) 290
Maximum speed (mph) 93
Acceleration from 0 to 62 mph (s) 14
Acceleration from 0 to 37 mph (s) 5,5
Charging time for 100 km range (NEDC) 8 h from domestic mains socket (230 V)

3 h from wall-box / public charging point (400 V)

Range (miles) NEDC >124
Energy capacity of lithium-ion battery system (kWh) 36
Payload (kg)
*) As per EG directive, including driver (68 kg) and luggage (7 kg)
350*)
Luggage compartment volume (l) 435 - 1.370

 

 

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