Currently reading: Electric Mercedes SLS at Frankfurt
AMG-tuned Mercedes SLS eDrive may go on sale in 2015
Autocar
News
2 mins read
15 September 2009

Mercedes has confirmed it is developing an electric version of the Mercedes SLS AMG, admitting at the Frankfurt motor show that AMG Mercedes engineers are well advanced with a concept car.

Tentatively planned for limited production in 2015, the new zero-emission supercar draws heavily on the production version of the SLS.

Frankfurt motor show: Mercedes SLS

The SLS eDrive is planned to be offered with the same lightweight aluminium body as the production version of the SLS, complete with its signature gullwing doors.

The new car is also set to take the standard interior, albeit with some minor changes to the switchgear to reflect the electric driveline.

The SLS eDrive will use a heavily modified version of the standard SLS’s rear-wheel-drive platform.

Among the changes aimed at accommodating the new hardware is the inclusion of a new pushrod front suspension, with coilover damper units mounted horizontally in place of the standard car’s more conventional upright double wishbone arrangement to free up space around the front axle. This allows the fitment of two 98kW (133bhp) motors up front, effectively turning the SLS eDrive into a four-wheel-drive vehicle.

Each of the front wheels is driven via a planetary drive set that acts like a torque vectoring device, providing drive to the wheel possessing the most traction. The set-up at the front is mirrored at the rear; each back wheel is powered by a 98kW (133bhp) motor that drives through a planetary drive set, although the standard rear double wishbones have been retained without modification.

All up, the SLS eDrive possesses 392kW (532bhp) and a sturdy 649lb ft of torque. By comparison, the standard SLS, powered by a heavily reworked version of AMG’s familiar 6.2-litre V8 engine, boasts 420kW (571bhp) and 479lb ft.

Wolf Zimmermann, the man heading up SLS eDrive development, claims 0-62mph acceleration in around 4.0sec and a top speed in excess of 120mph. The battery pack is mostly mounted low down in the space usually taken up by the standard SLS’s torque tube. AMG is also planning to use the space behind the seats, usually taken up by the fuel tank, for additional battery capacity.

Range is put at between 93 and 112 miles depending on the load placed on the battery, while overall recharging time is put at between five and six hours on high-density charge or eight hours on conventional mains power. Measures such as brake energy regeneration are likely to feature too.

Greg Kable

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Screws 13 July 2009

Re: Electric Mercedes SLS revealed

"Each of the front wheels is driven via a planetary drive set that acts like a torque vectoring device, providing drive to the wheel possessing the most traction" That torque sensing fraud still being perpetrated? It should be qualified with 'unless one wheel has no traction, i.e. no torque, in which case both wheels will have zero torque.' And lots of power on understeer. EDITED

Screws 13 July 2009

Re: Electric Mercedes SLS revealed

"Each of the front wheels is driven via a planetary drive set that acts like a torque vectoring device, providing drive to the wheel possessing the most traction" That torque sensing fraud still being perpetrated? It should be qualified with 'unless one wheel has no traction, i.e. no torque, then both wheels will have zero torque.' And lots of power on understeer.

aceman 12 July 2009

Re: Electric Mercedes SLS revealed

This sound interesting but I think Mercedes are being a little ambitous. But reading the fact that this car has about 530bhp and that it certain to be faster than 120mph is very impressive to say this is an electric car!

Very parculiar ideas that Mercedes have and these ideas can sound a bit stupid but it's definatley not!

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