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AUTOMOTIVE

Mercedes-Benz to market S 400 BlueHYBRID next year

By Mike Hanlon

10:03 September 18, 2008 PDT

Page: 1 2 3 4 5 6 7 8

Mercedes-Benz  to market S 400 BlueHYBRID next year

Mercedes-Benz to market S 400 BlueHYBRID next year

Image Gallery (20 images)

Mercedes-Benz developers also adapted the well-proven 7G-TRONIC automatic transmission to suit the hybrid drive, with newly programmed software for the transmission management system. A newly developed auxiliary oil pump ensures reliable lubrication of the transmission even during phases when the internal combustion engine is switched off.

This complex system is managed by the modified high-performance engine control unit. This incorporates extensive functions, and distinguishes between operating conditions such as city traffic, rural journeys, motorway driving or slow manoeuvring.

Hybrid status is shown in the instrument cluster

The driver is also able to monitor the status of the hybrid drive system visually. The instrument cluster has a separate, centrally positioned, display showing the energy flow during boost and recuperation phases, as well as the battery charge status.

Seven-stage safety concept in addition to the Mercedes-Benz standard

As is usual at Mercedes-Benz, the development engineers gave safety aspects their very special attention. Know-how incorporated into the series-production car included long years of Daimler research experience with fuel-cell technology. The challenge lay in not only complying with all the worldwide and in-house legal crash test requirements, but also in ensuring the greatest possible safety for the electrical components. This safety system already applies in production, includes workshop personnel during servicing and maintenance, and also takes the emergency services into account when passengers need to be recovered following an accident.

Accordingly the hybrid technology of the S 400 BlueHYBRID is equipped with an extensive 7-stage safety concept.

In the first stage all the wiring is colour-coded to eliminate confusion, and marked with safety instructions. This prevents assembly errors in production, and makes the regular quality checks easier to carry out.

...continued

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