Achieving a Cost Efficient and Dependability Scalable System for Automotive Applications, Using the QRcontrol Communication Protocol 2001-01-3237
This paper presents methods to easily increase the dependability and fault tolerance of a scalable bit-oriented cyclic protocol, QRcontrol, utilizing TDMA technique. Minor changes to the protocol software and built-in techniques in the controller can give increased dependability for changing requirements on the system. These techniques include for example enabling of double buses, checksums for a node or a whole TDMA cycle, bus guardians and different fault detection mechanisms for some or all nodes in the cluster.
The concept can be assigned to a very broad range of applications, from body electronics in cars to “By-Wire” applications with the highest dependability requirements.
Citation: Sivencrona, H. and Johansson, L., "Achieving a Cost Efficient and Dependability Scalable System for Automotive Applications, Using the QRcontrol Communication Protocol," SAE Technical Paper 2001-01-3237, 2001, https://doi.org/10.4271/2001-01-3237. Download Citation
Håkan Sivencrona, Lars-Åke Johansson
Chalmers University of Technology, Chalmers University of Technology, QRtech
Automotive and Transportation Technology Congress and Exposition
ATTCE 2001 Proceedings Volume 5 - Electronics-P-371, SAE 2001 Transactions Journal of Passenger Cars - Electronic and Electrical Systems-V110-7