Topics
- The Challenge
- Used Hardware
- ADMA-Integration
- Conversion of the voltage values
- Software implementation
The Challenge
Modern vehicles, which are increasingly operating semi-)autonomously, must be able to detect and react to complex situations quickly and precisely. A comprehensive understanding of all ehicle movements is crucial to ensure stability, safety and the driving experience. Inertial navigation systems, such as the ADMA, offer a variety of measurement data that provide deep insights into vehicle dynamics. However, GNSS-based inertial systems reach their limits when determining pitch and roll angles relative to the road surface, as the exact inclination of the road surface is not known. This whitepaper describes how the ADMA inertial system can detect these angles to the road surface using external level sensors.
Hardware
In this scenario, HF optical laser sensors from Kistler are used to measure the height in relation to the road at various points around the vehicle. This type of sensor is available in three different versions for different distances from the measuring point to the road.
ADMA Integration
The height sensors are connected to the ADMA inertial measurement system via the signal-in interface and output the measured height as an analog signal. The heights can then be calculated from the analog values using the scaling information from the sensors. This is done in post processing or online in the ADMA Data Logger software using the MATHS plug-in.
