Abstract:
Die Erfindung betrifft eine elektronische Steuerungseinrichtung (2) einer Antriebseinheit eines Fahrzeuges, insbesondere selbstfahrende landwirtschaftliche Erntemaschine (1) mit Allradantrieb, zumindest bestehend aus einem Hauptmotor (9), einem Lenkwinkelsensor (29) zur Ermittlung eines Lenkwinkels (33), einer Vorderachse (7) und einer Hinterachse (8) mit jeweils an diesen angeordneten Bodeneingriffsmitteln (3, 4, 5, 6), welche mit einem Boden im Eingriff stehen, wobei eine Anpassung des Verhältnisses zwischen einem von den Bodeneingriffsmitteln (3, 4) der Vorderachse (7) auf den Boden übertragenen Antriebsdrehmoment und einem von den Bodeneingriffsmitteln (5, 6) der Hinterachse (8) auf den Boden übertragenen Antriebsdrehmoment in Abhängigkeit des Lenkwinkels (33) erfolgt.
Abstract:
Un dispositif d'entraînement hydraulique pour véhicule automoteur à quatre roues (2a - 2d) motrices, comprenant un bloc (1) de translation hydraulique reliant une pompe (3) hydrostatique à des moteurs-roues (2a - 2d) hydrauliques à savoir, un moteur-roue avant gauche (2a), un moteur-roue avant droit (2b), un moteur-roue arrière gauche (2c) et un moteur-roue arrière droit (2d) . Le dispositif comprend des moyens (14a - 14c, 15a - 15c) de blocage de différentiel et de glissement limité et le bloc (1) de translation hydraulique comprend, dans au moins un mode de fonctionnement dit « marche avant », deux diviseurs de débit (11a, 11b) disposés en aval de la pompe (3) hydrostatique, entre les moteurs-roues (2a - 2d) et la pompe (3) hydrostatique, lesdits diviseurs de débit (11a,11b) étant configurés pour alimenter l'un, (11a), les moteurs-roues gauches (2a,2c), l'autre, (11b), les moteurs-roues droits (2b,2d), chaque diviseur de débit (11a ; 11b) présentant en sortie deux branches (21a,21c ; 21b,21d) configurées pour alimenter, du côté alimenté par ledit diviseur de débit (11a ;11b), l'une (21a ;21b) le moteur-roue avant (2a ; 2b), l'autre (21c ; 21d) le moteur-roue arrière (2c ;2d).
Abstract:
A system and method for substantially simultaneously shifting the speed of a plurality of multiple-speed motors that have shifting valves. The system and method includes substantially simultaneously applying an equal shifting force to all shifting valves, resisting shifting of all shifting valves with an equal biasing force arising from deflection of springs contained in spring chambers, and fluidly communicating all spring chambers with a common receptacle to equalize the pressure in all spring chambers.
Abstract:
This invention relates to a two-path hydromechanical transmission mounted on the caterpillar vehicle or the like and to a method of controlling the same, in which excellent operability and straight advancement performance can be obtained in a low speed zone and a high efficiency of power transmission is possible even in a high speed zone, using a small-capacity hydraulic pump and hydraulic motor. For attaining the above effects, the transmission is composed of: hydraulic pumps (2), (3) disposed independent from each other on the right and left sides and driven by an engine and hydraulic motors (4), (5) disposed in the same way as above; a power transmission path provided with reduction gear trains (100), (159) for transmitting output torque from the motors to the driving wheels and planetary reduction gear trains (200), (250); and another power transmission path provided with a reduction device (300) including bevel gears for dividing output torque from the engine rightward and leftward and with the abovesaid planetary reduction gear trains (200), (250) for transmitting output torque to the driving wheels on the right and left sides. This apparatus is separately controlled for running in the low and high speed zones.
Abstract:
A selectable flow divider drive system includes a hydraulic fluid reservoir and a plurality of drive motors in fluid communication with the hydraulic fluid reservoir. A hydraulic pump is connected between the hydraulic fluid reservoir and the plurality of drive motors and directs hydraulic fluid from the hydraulic fluid reservoir to the plurality of motors. The hydraulic pump is operable in a high flow condition and a low flow condition. A flow divider component is interposed between the hydraulic pump and the plurality of motors. The flow divider component selectively divides hydraulic fluid flow to each of the plurality of drive motors, where a flow divider of the flow divider component is sized for the low flow condition of the hydraulic pump. A bypass valve is disposed upstream of the flow divider that selectively bypasses the flow divider when the hydraulic pump is operated in the high flow condition.
Abstract:
A hydraulic motor unit according to the present invention includes an electric motor having an electric motor main body that is electrically controlled, an electric motor case that accommodates the electric motor main body and an electric motor main body output shaft that is rotated around an axis line thereof by the electric motor main body, the electric motor case being detachably mounted to the motor housing, wherein mounting of the electric motor to the motor housing causes the electric motor main body output shaft to be operatively connected to the first end of the control shaft so that the control shaft is rotated around the axis line in accordance with rotation of the electric motor main body output shaft.