The new generation of Hybrid systems from Mercedes-Benz combines for the first time a parallel Hybrid with a 4-cylinder diesel engine. The newly developed Mercedes-Benz Hybrid transmission is based on the overhauled 7G-TRONIC PLUS automatic transmission and on experience with previous Hybrid projects. The development target was a powertrain with the highest efficiency, flexibility and modularity, and to this end a highly efficient diesel engine was employed for the first time in combination with a parallel Hybrid. Our presentation briefly explains the operating modes, gives a short overview of the operation and use of high voltage (HV) components, describes examples of Hybrid driving states and treats in detail the systematic utilisation of the resulting potential for optimisation. We focus on the basic levers of development, in particular the maximisation of regenerated energy during braking and coasting and the tuning of the e-drive strategy for maximum efficiency. We also discuss the resulting influential factors and potential. The result has been a vehicle with the lowest fuel consumption in its class.
Mercedes-Benz hybrid - parallel hybrid in combination with diesel engine
2012
19 Seiten, 15 Bilder, 5 Quellen
Aufsatz (Konferenz)
Englisch
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