摘要:
An earthmoving machine comprises a sensor, an implement, and control architecture comprising a controller and configured to facilitate movement in response to a signal indicative of a measured implement position and an implement control value comprising a gain value associated with implement speed. The controller is programmed to execute machine readable instructions to generate a surface-based cost function (SBCF) value based on the signal, determine whether the SBCF value is acceptable to lock the gain value, and generate a noise value that is based on an error between the signal and a target signal when the SBCF value is unacceptable, determine whether the noise value is acceptable to lock the gain value, adjust the gain value to control the implement speed when the noise value is unacceptable until the SBCF value or the noise value is acceptable, and operate the machine based on the locked gain value.
摘要:
The invention relates to an apparatus for the suspension of a work implement such as sweeping rollers and ploughs on a vehicle, the apparatus comprising a frame mounted at one end of the vehicle and a carrier (11) fixed to the frame and running essentially transversely to the longitudinal axis of the vehicle. Adjacent to each of its outer ends the carrier can be provided with at least one link (14, 15) having a pivot axis (16, 17) parallel to the longitudinal axis of the carrier at a first end. The ends of the links remote from the carrier are fixedly supported at outer ends of the work implement, the links pivoting independently about each pivot axis (16, 17).
摘要:
L'invention concerne un véhicule militaire d'aménagement de terrain comprenant une caisse 1, des trains de roulement 2 chenillés ou à roues, un outil 3 monté à l'avant dudit véhicule par l'intermédiaire d'un support de liaison 4. Le support 4 comporte des moyens rétractables pour placer l'outil 3 dans au moins deux positions, une première position de travail éloignée du véhicule et une seconde position de transport rapprochée du véhicule militaire. Le support 4 comprend un demi-bras 6 comportant à une de ses extrémités une première articulation 7 avec la caisse 1 du véhicule, et à l'autre extrémité une seconde articulation 8 avec un autre demi-bras 9 porteur de l'outil 3. Le demi-bras 6 est muni d'une première motorisation 10 agissant entre la caisse 1 et celui-ci pour l'actionner en éloignement ou en rapprochement relativement à la caisse 1. Application aux engins militaires
摘要:
An earthmoving blade and mounting assembly 10, includes at least one generally hollow section mounting arm 12, 14 which mounts the blade 11 in use on an earthmoving machine, the arm 12, 14 including a generally sideways opening channel 20 and a generally upright closure plate 28 which closes the open mouth of the channel 20 to provide the hollow, the cross section of the hollow increasing from a mounting position 15, 16 where the arm 12, 14 is mounted on the earthmoving machine to an outer end where the arm 12, 14 is secured to the blade 11.
摘要:
The present invention relates to a power machine comprising a frame including an undercarriage and a house rotatably coupled to the undercarriage, first and second tractive elements coupled to left and right sides of the undercarriage, an upper lift arm structure pivotally coupled to the house, a lower lift arm structure pivotally coupled to the undercarriage at a lower lift arm pivot, a first lift cylinder pivotally coupled to the undercarriage at a first pivot and pivotally coupled to the lower lift arm structure at a second pivot, wherein the first and second pivots are positioned such that at least fifty percent of the first lift cylinder is positioned rearward of a forward most position of the undercarriage when the first lift cylinder is fully extended.
摘要:
Known systems for automatic height control of a dozer blade (302), which rotates about a line through pivot points (304) for supporting arms (303) when it changes its height use feedback and a reference from an absolute blade height measuring system (306). This only permits a slow operation. According to the invention the input from the slow absolute height sensor (306) is combined with an input from a fast gyroscope (307 or 308) that measures the instant rotation and recalculates it into a vertical height change using the length (309) of the supporting arms as the basis. The combination obtains the accuracy of the infrequent absolute height information and an increased speed of measurement resulting in a compensated height estimate that is input to a hydraulic control system of the feedback type. This improved height feedback enables much more aggressive control even though the hydraulic system has an unknown linearity and delay associated with it. The gyroscopic sensor forms an IMU (307 or 308) with one degree of freedom to compensate for the inevitable drawbacks of the absolute height sensor (306) in use with regard to delay, noise and update rate to obtain a frequent, time-correct height position with a reduced level of noise by means of a calculation based on both types of sensor output.
摘要:
Die Erfindung betrifft ein Fahrzeug mit einer bugseitig angeordneten Stütz- und Räumanlage (2), die ein Stütz- und Räumschild (3) umfasst, welches mit dem jeweils ersten Ende (4) mindestens zweier parallel zueinander angeordneter Auslegerarme (5) verbunden ist, und die zum Heben und Senken der Auslegerarme (5) am bugseitigen Ende des Fahrzeuges (1) angeordnete erste Hydraulikzylinder (13) aufweist. Um eine weit vor dem Fahrzeugbug (100) anordbare Abstützung des Fahrzeuges (1) auf einfache Weise zu ermöglichen, ohne dass aufwendige zusätzliche Abstützeinrichtungen erforderlich sind und ohne dass die Sichtverhältnisse des Fahrers des Fahrzeuges (1) bei Fahrt beeinträchtigt werden, schlägt die Erfindung vor, die Anlenkpunkte für die Auslegerarmlagerungen am Fahrzeug (1) verschiebbar auszugestalten, derart, dass bei der Fahrt- und der Räumposition das Stütz- und Räumschild (3) einen relativ kurzen Abstand zum Fahrzeug (1) aufweist und im Falle der Stützposition der Stützabstand wesentlich größer ist als bei vergleichbaren Fahrzeugen.
摘要:
A bulldozer blade (12) is set in contact with the ground under the following conditions:
A) upward pushing force components (Fu) that push dirt upward along the blade surface are generated; B) an upper part of the blade surface (22c) has a release surface portion in which a forward-upward release force that rolls the dirt pushed upward by (Fu) forwards is generated; C) when downward pressing force components (Fd) are generated in response to the generated release force, a total downward pressing force (Σ Fd) is less than a total upward pushing force (Σ Fu); and D) if each (Fu) is given a positive value and if each Fd and a reduced amount of each Fu caused when the dirt hits the release surface portion are given negative values, a value of force at an endmost section of the release surface portion is positive.
摘要:
A system for moving material at a work site includes: a work machine including a chassis, a material mover defining a material mover position, a location sensor, and a steering mechanism; and a controller system operably coupled to the material mover, the location sensor, and the steering mechanism. The controller system is configured to: store a sequence of travel paths; control the steering mechanism to follow the sequence of travel paths; determine the material mover position; determine followed travel positions of the work machine; generate an as-built map as the work machine follows the sequence of travel paths based on the material mover position and followed travel positions; compare the as-built map to a desired terrain map; generate a revised sequence of travel paths based on the comparison between the as-built map and the desired terrain map; and control the steering mechanism to follow the revised sequence of travel paths.
摘要:
Dampening device (1) for a Dozer blade (10) and related earthwork equipment (100); the blade (10) being carried by a frame (102) of the equipment (100) through the interposition of an actuating unit (106) suitable to adjust the vertical position of the blade (10); an axial-symmetrical member (11) being carried by the frame (102) to dampen oscillations associated, in use, to the forward movement of the blade (10).