The braking system with its large-diameter discs (measuring 312 mm across at the front wheels) is more than a match for the drive power. Bred on the racetrack, the system promises outstanding, fade-free stopping power.
The electromechanical steering with speed-sensitive power assistance is also a boon for agile handling. The system boasts optimum steering feel combined with low sensitivity to road surface irregularities and a considerable reduction in energy consumption.
Audi magnetic ride
The shock absorbers cushioning the A1 Sport back concept deploy a highly innovative technology in the form of Audi magnetic ride, which has already made its mark in the Audi R8 high-performance sports car and in the TT. The conventional shock absorbers fluid have been replaced by a magneto-rheological fluid; in which the ride qualities can be controlled by means of an electromagnetic field. This effect enables the damping characteristic to be influenced electronically by applying a voltage to the electromagnets, ensuring that the appropriate damping forces are available in any driving situation. A computer linked up to a system of sensors interprets the current driving situation with split-second speed, and offers selectable handling or comfort-biassed settings.
Audi drive select with efficiency mode
Dynamic ability and efficiency in the A1 Sportback concept are also enhanced by Audi drive select, which is currently available as an option in the A4, A5 and Q5 ranges. This enables the driver to pre-select one of two specially adapted configurations for the drivetrain, shift characteristics and magnetic ride shock absorbers.
The default setting is the "efficiency" mode. In this mode, the engine and transmission respond gently to use of the accelerator and shift paddles. This setting is ideal for a relaxed driving style, as well as offering tremendous potential for effectively lowering fuel consumption, and therefore emissions.In the "efficiency" mode the Audi A1 Sportback concept can be used for distances of up to 62.14 miles in purely electric mode, and at speeds considerably in excess of 62.14mph thanks to the powerful battery. The combustion engine only cuts in again once battery capacity has dropped to below 20 percent of maximum.
In this mode, the electric motor is not deployed as a source of additional torque; instead it is run selectively as the sole power source to bring about a tangible reduction in consumption. For this purpose, the system makes use of a host of parameters which can be fed to it via the navigation system. In the "efficiency" mode, for example, with a fully charged battery and a distance of less than 31 miles the vehicle is operated in principle on purely electrical power.
The sport mode is designed to produce dynamic yet comfortable driving characteristics. In this mode, the vehicle's electronics also harness the torque available from the electric motor to achieve optimum acceleration along with excellent lateral dynamics.