COMMANDE DE PROTECTION AU PLIAGE POUR VEHICULES ARTICULES, NOTAMMENT DES AUTOBUS

POUR UNE COMMANDE DE PROTECTION AU PLIAGE DE VEHICULES ARTICULES, NOTAMMENT D'AUTOBUS ARTICULES, ON UTILISE AVANTAGEUSEMENT DES VERINS A DOUBLE EFFET 8, 9 QUI SONT DISPOSES ENTRE LA VOITURE AVANT ET LA VOITURE REMORQUEE, AU MOYEN D'UN CIRCUIT D'ARRET ET DE LIAISON 13 COMMANDE PAR LE CALCULATEUR 25, SEULS SONT AUTORISES DES MOUVEMENTS D'EXPANSION OU DE CONTRACTION DES VERINS 8, 9 POUR LESQUELS L'ANGLE DE PLIAGE DE LA VOITURE REMORQUEE PAR RAPPORT A LA VOITURE AVANT SE RAPPROCHE D'UNE VALEUR DETERMINEE PAR LE CALCULATEUR 25. An anti-buckling control system is disclosed for articulated vehicles, especially articulated busses. Two double acting piston-cylinder units are interposed in the pivot connection between the forward and following vehicular units for applying resistance forces against hinged or buckling movement of the vehicular units with respect to one another. A computerized control unit is provided for controlling the hydraulic circuit for the piston-cylinder units so that they apply resistance forces tending to direct the buckling angle towards desired values determined in dependence upon the forward vehicular unit steering angle, the instantaneous buckling angle, and the vehicle velocity. The piston-cylinder units are disposed with their ends at one vehicle side closely adjacent one another and with their ends at the other vehicle side spaced from one another to form a V-shaped configuration. To increase the effectiveness of the piston-cylinder units for large buckling angles and the like, the ends thereof connected to a pivotal cross piece for supporting the following vehicle section, are disposed at the following vehicle side of the buckling pivot axis during straight driving conditions.