EDAG Light Car Open Source
From EDAG: Lightweight construction, electric drive system, rolling chassis and - last but not least - the innovative lighting concept offer great potential for a new vehicle concept. Many of the technologies shown today are still in the early stages of their development. For this reason, EDAG set this up as an open source project, approaching other companies with which it could work on the development of the Light Car. EDAG made a deliberate decision to address itself to a wide circle, thus enabling new notions to be absorbed in the car of the future. With EDAG's expertise in vehicle and production plant development, and the integration of system suppliers in complex complete development projects, the Fulda company successfully took the leading role in the development of the open source project.
With the choice of materials for EDAG's "Light Car - Open Source", the emphasis is on innovative solutions. Working with several open source partners at the IAA 2009, we will be using not just ASA.Tec's basalt fibre, but also other completely new technologies and innovative materials in the Light Car, all of which are expected to boost our efforts to reduce weight and material.
CX Group is, in cooperation with Zollern, to display a new thin-walled cast steel process which will make it possible to use extremely thin-walled steel. In addition, the material has a high degree of rigidity, with less distortion than aluminium.
Components made of partially tempered steel, which combine an extremely high degree of rigidity with great formability, will be presented by Linde+Wiemann for applications in the underbody, door sill and front end, and are to be used in the Light Car in the next stage of development.
Honsel, Specialists in lightweight construction concepts, will be showing some of their processing technologies, namely casting, extrusion and rolling aluminium and magnesium components.
For the first time ever, Böllhoff will be showing a newly developed joining method. This makes it possible to join together and produce a close fit between high-strength composite materials. For the first time ever, joints of aluminium, steel and plastic - but also mixed, multiple-layer and hybrid joints - can be joined and an outstanding fit achieved at high speed.
Using a a 100% monovalent electric drive system, the drive concept of the Light Car is such that no emissions are produced. Protean Electric Ltd., based in Alton, England, provide the power units. Two wheel hub motors in in the rear wheels in conjunction with a powerful lithium-ion battery (made by GAIA Akkumulatorenwerke GmbH) integrated in the chassis are responsible for propulsion. The EDAG Group is attending to the engineering of the battery package, including production optimisation, with the aim of achieving a maximum system performance of 152 HP / 750 rpm in the future, with a maximum speed of 140 km/h and a maximum range of 150 km. In addition, the use of a direct rear wheel drive and a steered rear axle provides the basis for a lightweight and extremely manoeuvrable Light Car.
In the glass panes, (O)LED lamps mark out the outlines of the headlights and rear lights. In the same way as a multimedia installation is configured, the headlight design of the Light Car can also be individualised. With the aid of (O)LED technology, the transparent tailgate can be used as a projection screen, providing simple and effective car-to-car communication for all motorists. For instance, the braking force can be communicated to the next vehicle by means of an illuminated scale on the back of the car. Other information, such as a distance reading or if there is the tail end of a traffic jam ahead, can be clearly displayed on the back of the car, even if the vehicle behind does not have a car-to-car communication system of its own.