-
公开(公告)号：US20210372081A1
公开(公告)日：2021-12-02
申请号：US16941783
申请日：2020-07-29
Inventor： Zhiqiang Hou , Bin Zhao , Hao Liu , Shengli Lu
Abstract: The present disclosure relates to a leveling control method, device and system, a motor grader. The leveling control method includes: acquiring elevations of a current position of a blade of a motor grader and a target position, and a movement speed of the motor grader, wherein the target position is on the ground with a certain horizontal distance from the current position along a movement direction of the motor grader; determining a movement time of the blade from the current position to the target position from the horizontal distance and the movement speed; determining a lifting speed of a lifting cylinder from an elevation difference between the elevation of the target position and the elevation of the current position and the movement time; and controlling the lifting cylinder to adjust the blade to move from the current position to the target position according to the lifting speed.
-
公开(公告)号：US20210332552A1
公开(公告)日：2021-10-28
申请号：US16480091
申请日：2018-04-25
Applicant: Komatsu Ltd.
Inventor： Kota Yamaguchi , Yuji Asai , Toshihiro Yone
Abstract: A work equipment for a motor grader comprising: a drawbar including: a drawbar plate and an outer peripheral-side rib that is integrally fixed to the drawbar plate so as to protrude from a lower surface of the drawbar plate; and a circle including a circle plate that protrudes outside of the outer peripheral-side rib in the radial direction and forms a lower-side gap between a lower end of the outer peripheral-side rib and the circle plate; and an outer peripheral-side wall portion that is connected to the outer peripheral side of the circle plate, has a cylindrical shape surrounding the outer peripheral-side rib from an outer peripheral side of the outer peripheral-side rib, and forms a clearance between the lower surface of the drawbar plate and the outer peripheral-side wall portion.
-
公开(公告)号：US20210310214A1
公开(公告)日：2021-10-07
申请号：US17347693
申请日：2021-06-15
Applicant: KUBOTA CORPORATION
Inventor： Daiki TAMBA , Yukifumi YAMANAKA , Yuki SHIMOIKE
Abstract: The working machine includes a machine body, an engine provided on the machine body, a motor generator to be operated as a motor to assist driving of the engine in an assisting operation and to be operated as a generator by power of the engine to generate electricity in a generating operation, a battery to store the electricity generated by the motor generator, an acceleration sensor to measure acceleration of the machine body, and a controller to selectively set either one of the assisting operation and the generating operation based on the acceleration of the machine body measured by the acceleration sensor.
-
公开(公告)号：US20210310212A1
公开(公告)日：2021-10-07
申请号：US17164124
申请日：2021-02-01
Applicant: OCFab Ltd.
Inventor： Micheal Justin Waldner
Abstract: An earth working implement has a main frame, a main blade supported on the main frame transversely to the forward direction, and two wing blades pivotally supported at opposing ends of the main blade for movement between forward and rearward projecting orientations. A tilt actuator controls angular orientation of the main blade relative to the main frame about a lateral axis. Two rear wheels support the rear end of the frame for rolling along the ground. A hitch arm extends forwardly from a pivotal connection of the main frame for connection to a towing vehicle so as to vary in angular orientation relative to the main frame independently of the main blade. Furrow openers in a laterally spaced apart row are movable relative to the main frame between a working position protruding below the cutting edge of the main blade and a raised storage position.
-
公开(公告)号：US11124948B2
公开(公告)日：2021-09-21
申请号：US16879092
申请日：2020-05-20
Applicant: KUBOTA CORPORATION
Inventor： Yuji Fukuda
Abstract: A working machine includes a traveling motor having a first speed and a second speed, an operation detector device to detect an operation extent of a traveling operation member, a controller device having an automatic decelerator portion to perform an automatic deceleration for reducing a revolving speeds of the traveling motor, and a storage device storing first control information representing a relation between a first-speed regulating revolving speed corresponding to the operation extent at the first speed and a second-speed regulating revolving speed corresponding to the operation extent at the second speed. The automatic decelerator portion obtains the first-speed regulating revolving speed based on the first control information and the operation extent when the traveling motor is at the second speed, and performs the automatic deceleration when the motor revolving speed is equal to or less than the first-speed regulating revolving speed.
-
Patent Agency Ranking
公开(公告)号：US11124941B2
公开(公告)日：2021-09-21
申请号：US16370451
申请日：2019-03-29
Applicant: CNH Industrial America LLC
Inventor： Alessandro Benevelli , Domenico Meola , Davide Antonucci
Abstract: A motor grader having an articulated frame that includes a first front frame portion and a second rear frame portion that is angularly moving with respect to the first frame portion around a pivoting axis. A front steering system includes front wheels that are movable around a steering axis with respect to the articulated frame and around leaning axis transversal to the steering axis so that the front wheels may turn and lean during steering operation. A control unit receives as an input a control signal representing a steering angle and outputs steering actuation commands for an hydraulic actuating system of the front steering system and for a hydraulic actuating system of the articulated frame realizing synchronized and proportional angular movements of the front wheels around the steering and leaning axes and of the first and second portions of the frame around the pivoting axis.
-
公开(公告)号：US11105624B2
公开(公告)日：2021-08-31
申请号：US16824287
申请日：2020-03-19
Applicant: Deere & Company
Inventor： Sara Meghan Beery , Tarik Loukili , Justin Borgstadt , Shayne C. Rich , Michio Kise , Travis J. Davis
Abstract: Methods and apparatus to track a blade are disclosed. A disclosed example apparatus includes a blade that is pivotable, first and second optical targets operatively coupled to the blade, and a first camera for collecting first imaging data of the first optical target within a first field of view. The example apparatus also includes a second camera for collecting second imaging data of the second optical target within a second field of view. The example apparatus also includes a selector to select at least one of the first or second imaging data, and a processor to determine an orientation of the blade based on the selected imaging data.
-
公开(公告)号：US20210216075A1
公开(公告)日：2021-07-15
申请号：US17273387
申请日：2019-09-17
Applicant: KOMATSU LTD.
Inventor： Yukihisa TAKAOKA
Abstract: A system automatically controls a work machine including a work implement. The system includes a load sensor and a processor. The load sensor detects load data indicative of a load applied to the work implement. The processor acquires the load data. The processor executes a load reduction control in order to cause the work machine to operate so as to reduce the load based on the load applied to the work implement during digging. The processor records, as a reference position, a position of the work machine when the load applied to the work implement during the digging becomes a predetermined threshold or greater. The processor determines a next starting position based on the reference position. The processor controls the work machine to start next digging from the next starting position.
-
59.发明授权公开(公告)号：US11053667B2
公开(公告)日：2021-07-06
申请号：US16469403
申请日：2018-02-22
Applicant: KOMATSU LTD.
Inventor： Junji Harada , Eiji Ishibashi , Takahiro Shimojo
Abstract: A work vehicle includes a work implement. A control system for the work vehicle includes a controller. The controller acquires actual topography data indicating an actual surface of a work target. The controller vertically displaces a target design surface using the actual surface as a reference.
-
公开(公告)号：US11053663B2
公开(公告)日：2021-07-06
申请号：US16130743
申请日：2018-09-13
Applicant: Deere & Company
Inventor： Michael G. Kean , Michael D. Peat , Todd F. Velde
Abstract: A motor grader including a main frame, an operational frame movable relative to the main frame about a primary joint, and a plurality of hydraulic cylinders configured to adjust a position of the operational frame relative to the main frame, where each cylinder of the plurality of cylinders is movable between an extended position and a retracted position to adjust the length thereof. The motor grader further includes a processor configured to receive a signal indicating a desired cross slope of the operational frame, receive a signal identifying one of the plurality of cylinders as a lead cylinder, determine a desired position of the operational frame that achieves the desired cross slope of the operational frame, estimate a current position of the operational frame by monitoring a length of the lead cylinder, and adjust the position of the operational frame by controlling a follower cylinder of the plurality of cylinders to create the desired cross slope.
-
-
-
-
-
-
-
-
-
Search Results
1355
records
(took 0.052 seconds)
