Open AccessSliding-mode observers for systems with unknown inputs: Application to estimating the road profile
Author(s) -
Hocine Imine,
N.K. M’Sirdi,
Y Delanne
Publication year - 2005
Publication title -
proceedings of the institution of mechanical engineers part d journal of automobile engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.427
H-Index - 65
eISSN - 2041-2991
pISSN - 0954-4070
DOI - 10.1243/095440705x34658
Subject(s) - observer (physics) , control theory (sociology) , mode (computer interface) , computer science , road surface , work (physics) , mathematics , engineering , control (management) , artificial intelligence , physics , mechanical engineering , civil engineering , quantum mechanics , operating system
In this paper, a sliding-mode observer for systems with unknown inputs is presented. The system considered is a vehicle model with unknown inputs that represent the road profile variations. Coefficients of road adhesion are considered as unknown parameters. The tyreroad friction depends essentially on these parameters. The developed observer permits these longitudinal forces acting on the wheels to be estimated. Then another observer is developed to estimate the unknown inputs. In the first part of this work, some results are presented which are related to the validation of a full-car modelization, by means of comparisons between simulations results and experimental measurements (from a Peugeot 406 as a test car)
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