F2008-05-076
LRR3 by Bosch - Long Range Radar Sensor for High-Volume Driver Assistance Systems Market
Increasing market penetration of driver assistance systems into the mid-class segment challenges system suppliers with ACC (Adaptive Cruise Control) and PSS (Predective Safety Systems) functions with divergent requirements. Bosch offers with its 3rd generation Long Range Radar sensor a solution that covers requirements for high performance systems as well as requirements for low-cost sensor components with robust and compact design and high quality standards, which are perfectly suited for high-volume production.
LRR3 is based on the FMCW-Radar principle, working at 76 - 77 GHz. The antenna design enables a field of view that covers the range of 0.5 ... 250 m with a customized opening angle between 30° (Long Range, max. distance 250 m) and 60° (Mid Range, max. distance 120 m). Furthermore, the antenna design is optimized for multiple sensor-configurations with asymmetrical field of view. LRR3 is the first fixed beam radar-sensor with angle-separability. Complex traffic constellations (e. g. "free alley") are handled by the implementation of additional algorithms, which are derived from concepts for DBF sensors. The measurement performance with best-in-class accuracy of angle, speed, and distance allows to detect even stationary objects. Key-element of LRR3 concept is the introduction of a fully silicon based technology for the RF-components with superior properties due to performance, quality and cost. Due to the high level of integration, Bosch offers once again the world smallest Long Range Radar sensor for automotive applications.
This paper presents architecture and performance of LRR3, technical data and used technologies. Mechanical and electrical sensor interfaces are described.
Session: Advanced Driver Assistance