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Technology transfer from Mercedes SLS AMG Coupé Electric Drive to Cigarette Racing

16 February 2013

Mercedes-AMG and Cigarette Racing launched the latest development of their cooperation at the Miami International Boat Show (14-18 February 2013). Numerous components from the SLS AMG Coupé Electric Drive (earlier post) have been integrated in the design of the “Cigarette AMG Electric Drive Concept” engineering design.

The high-performance drive fitted in the electric super sports car makes the off-shore powerboat the world’s most powerful and fastest electrically driven motor boat, with an output of 1,656 kW (2,201 hp) and a maximum torque of 3,000 N·m (2,212 lb-ft).

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The 38’ Cigarette AMG Electric Drive Concept and the SLS AMG Coupé Electric Drive. Click to enlarge.

Mercedes-AMG uses two drive units, each featuring six independent electric motors. At the rear of the boat, each drive unit has its own transmission, one on the left and one on the right—i.e., twelve compact, liquid-cooled permanent-magnet synchronous electric motors which are the signature piece of the SLS AMG Coupé Electric Drive. Each electric motor delivers 138 kW and 250 N·m.

The maximum output of 1,656 kW and maximum torque of 3,000 N·m combine to reach a top speed of more than 99 mph, making this the world’s fastest electrically driven powerboat.

The high-voltage battery in the SLS AMG Coupé Electric Drive offers an energy content of 60 kWh, an electric load potential of 600 kW and a weight of 548 kg—best values in the automotive sector. The liquid-cooled lithium-ion high-voltage battery features a modular design with a maximum voltage of 400 V. It consists of 12 modules each comprising 72 lithium-ion cells.

Cigarette integrates four high-tech batteries with a total of 48 modules and 3,456 cells which generate a total capacity of 240 kWh and an electric output of 2,400 kW.

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Electric powertrain for the Cigarette. Click to enlarge.

The battery is the result of the cooperation between Mercedes-AMG GmbH in Affalterbach and Mercedes AMG High Performance Powertrains Ltd. With its headquarters in Brixworth, England, the company has been working closely with Mercedes-AMG for a number of years.

The Cigarette AMG Electric Drive Concept is fitted with two 22 kW on-board chargers from the SLS AMG Coupé Electric Drive as standard. Adapted to fit the infrastructure standard of many American marinas, the boat thus has a charging capacity of 44 kW. The battery is fully charged in approximately seven hours. To reduce the charging time to less than three hours, the powerboat can be fitted with four on-board chargers as an option.

February 16, 2013 in Brief | Permalink | Comments (1) | TrackBack (0)

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Comments

This is an interesting electric drive train exercise with a likely speed record somewhere in it.

I roughed in some numbers indicating that 3 - 85 kwh Tesla batteries might be lighter and cheaper, but power without all the 18650 connections may be the goal.

Where's the years old http://green.autoblog.com/2011/04/05/dbm-energy-record-breaking-kolibri-battery-passes-government-tests/ and the US http://enviasystems.com/ ??

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