Modeling extreme loads acting on steering components using driving events
Journal article, 2015
Forces during steering events, such as curves and maneuvers, cause large stresses on steering components. In this paper, we formulate a model for the lateral loads causing fatigue damage of the steering components. Steering events are identified using a Hidden Markov model on the CAN (Controller Area Network) bus data. The CAN data is available on all vehicles, thus the model is applicable across many types of vehicles. To identify the events, the observation from CAN data is modeled by a multivariate generalized Laplace (GAL) distribution. An explicit formula for the expected fatigue damage is given. Results are validated using measured lateral acceleration.
Laplace distribution
Statistics & Probability.
Hidden Markov models (HMMs)
MARKOV
Mechanical
ALGORITHM
CYCLES
Fatigue damage index
Rainflow cycles
Mechanics
Vehicle
Engineering
Author
Roza Maghsood
University of Gothenburg
Chalmers, Mathematical Sciences, Mathematical Statistics
Igor Rychlik
University of Gothenburg
Chalmers, Mathematical Sciences, Mathematical Statistics
Jonas Wallin
Chalmers, Mathematical Sciences, Mathematical Statistics
University of Gothenburg
Probabilistic Engineering Mechanics
0266-8920 (ISSN) 18784275 (eISSN)
Vol. 41 13-20 2834Subject Categories
Probability Theory and Statistics
DOI
10.1016/j.probengmech.2015.04.002