Audi’s hybrid metroproject quattro

Thanks to the navigation system's ability to detect differences in altitude along the route, regeneration phases as well as the increase in energy requirements on inclines can be computed before the journey has even started. This also makes for particularly efficient vehicle operation by harnessing the electric motor to optimum effect.

On predefined routes with access to a mains power socket at the destination, the Audi metroproject quattro can cover distances of up to 100 kilometers running purely on electrical power – and swiftly too: it is capable of reaching a speed of considerably more than 100 kmh. The combustion engine only cuts in again once battery capacity has dropped to below 20 percent of maximum.

The "efficiency" mode also flashes up messages in the central display advising the driver to deactivate energy-intensive systems, such as the automatic air conditioning's compressor, or close any open windows.

The “dynamic” mode is designed to produce the dynamic yet comfortable driving sensation that is so typical of the brand and that Audi drivers have come to expect of their car. In this mode, the vehicle's electronics also harness the torque available from the electric motor to achieve extra-sporty acceleration along with excellent lateral dynamics.

Magneto-rheological suspension

The shock absorbers deploy a highly innovative technology in the form of Audi magnetic ride, which we’ve already seen in the Audi R8 and the TT. Here, the conventional shock absorber fluid is replaced by a magneto-rheological fluid whose viscosity can be controlled by means of an electromagnetic field. This effect allows the damping characteristics to be adapted electronically at any time by energizing the electromagnets.

Audi magnetic ride capitalizes on this quality to make the appropriate damping forces available in any driving situation, thereby optimizing both ride comfort and performance dynamics. A computer linked up to a system of sensors interprets the current driving situation with split-second speed. At the same time, drivers are able to choose between two different drive modes, depending on whether they wish to have a distinctly sporty drive – with the magneto-rheological fluid at a low viscosity – or a more comfort-oriented ride.

Although just a concept at the moment, the metroproject quattro showcases some very practical and exciting technologies, and also demonstrates the viability of a plug-in electric/petrol hybrid as a real-world alternative engine technology. Fantastic stuff.