In this paper open loop optimal trajectories for downhill driving are described. Problem formulation including process modelling, model simplification, transformation into a finite optimisation problem, and implementation into the TOMLAB optimisation package are presented. Results show that there is a large potential in controlling the complete brake system of a heavy duty truck and thereby simultaneously improve both mean speed (transport efficiency) and component wear cost. The resulting optimal trajectories define the upper limit for what is theoretically achievable in a real, closed loop, controller implementation and can be used to both inspire and verify the development of such algorithms.
Open loop optimal downhill driving brake strategies using non-linear programming
International Journal of Heavy Vehicle Systems (IJHVS) (Internet) ; 14 , 1 ; 36-56
2007
21 Seiten, 13 Bilder, 11 Quellen
Aufsatz (Zeitschrift)
Englisch
Bewegungsgleichung , Bremskraftregler , Bremssystem , Bremsvorgang , Fahrgeschwindigkeit , Gefälle , Kostenoptimierung , mathematisches Modell , nichtlineare Programmierung , Optimierungsalgorithmus , Regelungsmodell , Regelungsoptimierung , Reibungswärme , Schwerfahrzeug , Temperaturverlauf , Trajektorie , Verschleiß
Open loop optimal downhill driving brake strategies using non-linear programming
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