The invention relates to a lorry with at least two pairs of stabilizer legs (10a, 10b, 11a, 11b). A hydraulic crane (20) is carried by the chassis (5) of the lorry and comprises a rotatable column (22). An electronic control device is configured to establish a lifting moment limit value while taking into account the stability of the lorry against tipping, wherein this limit value represents the maximum allowed value for the lifting moment of the crane. The electronic control device adjusts said limit value in dependence on the slewing angle (θ) of the column such that the twisting of the chassis induced by the weight of the crane and the load carried by the crane is limited so that the consequential lifting of a stabilizer leg from the ground is prevented from exceeding a predetermined level. The invention also relates to a method for regulating the maximum allowed lifting moment of a hydraulic crane.
LORRY AND METHOD FOR REGULATING THE MAXIMUM ALLOWED LIFTING MOMENT OF A HYDRAULIC LORRY CRANE
LASTKRAFTWAGEN UND VERFAHREN ZUR REGELUNG DES MAXIMAL ZULÄSSIGEN HUBMOMENTS EINES HYDRAULISCHEN LASTKRAFTWAGENKRANS
CAMION ET PROCÉDÉ DE RÉGULATION DU MOMENT DE LEVAGE MAXIMAL AUTORISÉ D'UN CAMION GRUE HYDRAULIQUE
2021-04-28
Patent
Elektronische Ressource
Englisch
IPC: | B66C Krane , CRANES |
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