Title :
Detection of roof load for automotive safety systems
Author :
Reineh, Maryam Sadeghi ; Enqvist, Martin ; Gustafsson, Fredrik
Author_Institution :
Dept. of Electr. Eng., Linkoping Univ., Linkoping, Sweden
Abstract :
The performance and design of lateral stability systems in cars depend on the ratio between the height of the center of gravity and the wheel base. This ratio is car specific, but a roof load can affect this and decrease the stability margins. We investigate the use of vehicle roll dynamics to detect and estimate changes in the overall sprung mass as well as the load positioned on the roof. It is assumed that the vehicle is equipped with a lateral accelerometer and a roll gyro, and a second order physical model is derived. The parameters in this model are partly unknown, and here estimated with a greybox and an ARMAX approach. The changes in load distribution can be detected and the approach is supported by experimental data in a lab environment.
Keywords :
automobiles; autoregressive moving average processes; control system synthesis; road safety; road traffic control; stability; vehicle dynamics; ARMAX approach; automotive safety systems; autoregressive moving average model with exogenous variables; greybox approach; lateral accelerometer; lateral stability system design; load distribution; roll gyro; roof load detection; second order physical model; sprung mass; stability margins; vehicle roll dynamics; wheel base; Data models; Dynamics; Estimation; Load modeling; Mathematical model; Vehicle dynamics; Vehicles;
Conference_Titel :
Decision and Control (CDC), 2013 IEEE 52nd Annual Conference on
Conference_Location :
Firenze
Print_ISBN :
978-1-4673-5714-2
DOI :
10.1109/CDC.2013.6760314
