Motor grader (1) wherein an articulated frame (3) comprises a first front frame portion (3-a) and a second rear frame portion (3-b) that is angularly moving with respect to the first frame portion (3-a) around a pivoting axis (17). A front steering system (5) comprises a couple of front wheels (9) that are movable around a steering axis (11) with respect to the articulated frame (3) and around leaning axis (13) transversal to the steering axis (11) so that the front wheels (9) may turn and lean during steering operation. A control unit (20) receives as an input a control signal representing a steering angle () required by the driver of the motor grader and outputs steering actuation commands for an hydraulic actuating system (18) of the front steering system (5) and for an hydraulic actuating system (19) of the articulated frame (3) realizing synchronized and proportional angular movements of the front wheels (9) around the steering axis (11), of the front wheels (9) around the leaning axis (13) and of the first portion of the frame (3-b) with respect to the secondo portion of the frame (3-b) around the pivoting axis (7).
MOTOR GRADER WITH COMFORT STEERING
MOTORGRADER MIT KOMFORTLENKUNG
NIVELEUSE À MOTEUR À DIRECTION CONFORTABLE
2019-10-02
Patent
Electronic Resource
English