Pilot line 64 - efficient electromobility in Dresden

Project name

Pilot line 64 - efficient electromobility in Dresden

Project duration

01.10.2013 - 30.09.2016

Brief description

Drive-side energy conversion in hybrid vehicles is significantly more efficient than in conventionally powered vehicles. This is achieved, among other things, by downsizing the combustion engine (increasing efficiency by reducing displacement), predominantly operating at efficiency-optimized operating points and by frequent engine start-stop and partial electric driving. The discontinuous use (start-stop) and the overall lower engine waste heat as a consequence of the increase in efficiency leads to a deficit of heat for the passenger compartment in the cold season. As a result, several additional heating devices based on heating oil are required, which consume between 600 and 1,000 liters of heating oil per vehicle per year. In winter in particular, this can offset the consumption advantage over a conventionally powered bus. This makes further steps towards energy optimization (air conditioning, auxiliary consumers, etc.) in the form of additional components and control technology measures absolutely necessary.
This project will therefore investigate and test innovative measures and technologies to minimize energy consumption as a result of air conditioning and auxiliary consumers. In addition, the vehicle is to be equipped with a predictive energy management system, which is required for the optimal control of air conditioning and auxiliary consumers and also supports the driver with assistance functions. With regard to electromobility, these measures represent an indispensable contribution to alleviating the range problem.

Cooperation partners

• DVB AG, OPNV (Germany)

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