Audi Press Release
- Telemetry connection between race car and pit lane
- Permanent acquisition of far more than 1,000 parameters
- Various electronic control units interlinked by a multitude of CAN Bus systems
Ingolstadt, May 5, 2014 – The Audi R18 e-tron quattro is the most complex race car created in Ingolstadt and Neckarsulm to date. This not only applies to the mechanics. The electronics of the most recent LMP1 race car with the four rings is more sophisticated than ever before.
Today, an Audi R18 e-tron quattro on more than a thousand channels, in cycles that in some cases only amount to milliseconds, generates data of crucial importance to a staff of engineers at Audi Sport. At Le Mans, the engineers constantly monitor their race cars for 24 hours. Whether it concerns the functionality of the systems, compliance with the regulations or information that is important for strategic reasons, the race car – similar to a medical EKG system – continually diagnoses its condition and reports it to the team garage.
The race car has a direct online connection to the computers in the team garage. It is used for high-speed data transmission in real time for operating conditions, such as temperatures, that do not require a high transfer rate. This makes it possible to effectively transfer limited data volumes for a general assessment of the car’s condition. In contrast, the sports car gathers detailed data on each race lap and transmits it via a burst signal when the car drives past the pit lane. Data volumes of more than 20 megabytes are generated per lap, depending on the measurement configuration – equating to more than 10,000 A4 size pages.
In addition, there is a telemetry system for the officials of the FIA (Fédération Internationale de l’Automobile), which together with the ACO (Automobile Club de l’Ouest) monitors compliance with the regulations: Is the hybrid system within the prescribed amounts of energy? Is the energy consumption of the race car within the prescribed range? Are the boost pressure parameters correct? Does the cockpit temperature remain within the permissible limits?
Photo credit: Audi Communications - Motorsport