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Patent Agency Ranking
公开(公告)号：US11965309B2
公开(公告)日：2024-04-23
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.
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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.
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公开(公告)号：US11970835B2
公开(公告)日：2024-04-30
申请号：US17136193
申请日：2020-12-29
CPC classification number: E02F3/844 , E02F3/7668 , E02F3/7672 , E02F3/7677
Abstract: A grader and slope scraping control method and device include a grader having a front frame; a blade mounted on the front frame, an attitude of the blade is adjustable; an actuator for adjusting the attitude of the blade; a first angle detecting member for detecting a first inclination angle in a front and rear direction of the grader relative to a horizontal plane and a second inclination angle in a left and right direction relative to a horizontal plane; a blade detecting member for detecting attitude information of the blade relative to the front frame; and a controller, for obtaining an actual slope angle based on the first inclination angle, second inclination angle and attitude information, and make the actuator adjust attitude of the blade to a target slope angle when the actual slope angle is inconsistent with the preset target slope angle.
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公开(公告)号：US11629476B2
公开(公告)日：2023-04-18
申请号：US17095929
申请日：2020-11-12
Inventor： Bin Zhao , Hao Liu , Zhiqiang Hou , Letian Zhang
Abstract: A grader and a blade control method wherein the grader includes: a blade mechanism including a blade; a blade adjusting mechanism including a plurality of adjusting means respectively corresponding to at least two degrees of freedom of the blade, and configured to adjust a spatial position and/or angle of the blade; a blade position detecting mechanism configured to detect a slope parameter for characterizing a spatial position of the blade; a motion trajectory library configured to store motion functions of the plurality of adjusting means respectively when different operation conditions and/or different grades are switched; a controller configured to call a corresponding motion function in the motion trajectory library according to a set operation condition and a required slope, and control at least one of the plurality of adjusting means according to a position parameter of the blade and the motion function.
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公开(公告)号：US20220112684A1
公开(公告)日：2022-04-14
申请号：US17136193
申请日：2020-12-29
Abstract: A grader and slope scraping control method and device include a grader having a front frame; a blade mounted on the front frame, an attitude of the blade is adjustable; an actuator for adjusting the attitude of the blade; a first angle detecting member for detecting a first inclination angle in a front and rear direction of the grader relative to a horizontal plane and a second inclination angle in a left and right direction relative to a horizontal plane; a blade detecting member for detecting attitude information of the blade relative to the front frame; and a controller, for obtaining an actual slope angle based on the first inclination angle, second inclination angle and attitude information, and make the actuator adjust attitude of the blade to a target slope angle when the actual slope angle is inconsistent with the preset target slope angle.
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