Modeling extreme loads acting on steering components using driving events

• 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.

Ämnesord

NATURVETENSKAP  -- Matematik -- Sannolikhetsteori och statistik (hsv//swe)

NATURAL SCIENCES  -- Mathematics -- Probability Theory and Statistics (hsv//eng)

Nyckelord

Fatigue damage index

Hidden Markov models (HMMs)

Laplace distribution

Rainflow cycles

Vehicle

MARKOV

ALGORITHM

CYCLES

Engineering

Mechanical

Mechanics

Statistics & Probability.

Laplace distribution

Publikations- och innehållstyp

ref (ämneskategori)

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