System and method for steering a multi-wheel drive vehicle

B - Operations – Transporting – 62 – D

Patent

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Details

B62D 9/00 (2006.01) B62D 6/00 (2006.01) B62D 7/15 (2006.01) B62D 11/00 (2006.01) B62D 11/04 (2006.01)

Patent

CA 2432510

A system and method of controlling a multi-wheel drive vehicle is provided. The invention is preferably applicable to the steering of such a vehicle and determines the individual velocities for each wheel drive (108, 110, 112, 114). In this regard, the invention includes two general steps. The first step includes determining the distance of each wheel drive (108, 110, 112, 114) and a vehicle velocity reference point from a turning reference point. The second step includes ratioing each wheel drive's distance from the turning reference point with the vehicle velocity reference point's distance from the turning reference point. The ratios are then applied to a vehicle velocity associated with the vehicle velocity reference point to determine the velocity of each respective wheel drive.(108, 110, 112, 114). Once determined, the velocities are output to each wheel drive.(108, 110, 112, 114)

L'invention concerne un système et un procédé de commande d'un véhicule à roues motrices multiples. L'invention s'applique de préférence à la direction d'un tel véhicule et détermine la vitesse individuelle de chaque roue motrice. L'invention se compose de deux étapes générales. La première étape consiste à déterminer la distance de chaque roue motrice et un point de référence de vitesse du véhicule à partir d'un point de référence de tournant. La seconde étape consiste à établir un rapport de la distance de chaque roue motrice à partir du point de référence de tournant avec la distance du point de référence de vitesse du véhicule à partir du point de référence de tournant. Les rapports sont ensuite appliqués à une vitesse de véhicule associée au point de référence de vitesse du véhicule pour déterminer la vitesse de chaque roue motrice. Une fois déterminées, les vitesses sont envoyées à chaque roue motrice.

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