Mercedes-Benz reports that the compact hybrid module installed in all the S-Class hybrids comprises a disk-shaped electric engine, which also functions as a starter motor and dynamo. This system offers a double benefit, working on the one hand in various ways to save fuel, and making driving so much more fun.

The main reason for the increased driving enjoyment is what is known as the boost effect, whereby the electric engine supports the combustion engine during the high-consumption acceleration phase with a maximum extra torque of 160 Newton metres. With this high torque the electric engine assists the combustion engine heartily when accelerating from very low engine speeds. As a result, the combustion engine itself needs less time and energy to build up its maximum torque. The only thing the driver notices from this synergy of the two power units is a supremely effortless power output whenever he starts off.

The hybrid module also features a comfortable start-stop function which switches the engine off whenever the vehicle stops, for example at traffic lights. Once the vehicle is ready to move off again, the electric engine starts the main engine again so gently, that it remains virtually unnoticed. This of course also contributes to fuel savings and is kind to the environment: since the engine starts virtually immediately, virtually no unburned fuel is discharged when starting off. When decelerating, on the other hand, the electric engine functions as a generator, and can recover braking energy in what is known as the recuperation process. This energy is stored in a powerful but compact lithium-ion battery pack in the engine compartment, ready for use when required. The engine management of this complex system is governed by a powerful control unit, which is also installed close to the engine.

Source: Mercedes-Benz Press Release via www.autoblog.com

This entry was posted on Wednesday, September 26th, 2007 at 7:42 am and is filed under Mercedes S-Class Hybrid, Mercedes S-Class, Mercedes Benz News. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.