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公开(公告)号：US20170145662A1
公开(公告)日：2017-05-25
申请号：US15102648
申请日：2015-11-19
Applicant: KOMATSU LTD.
Inventor： Yoshiro Iwasaki , Masashi Ichihara
CPC classification number: E02F9/2267 , E02F3/32 , E02F9/18 , E02F9/2214 , E02F9/265 , G05B2219/45012
Abstract: A control method for a work machine, includes: detecting a posture of a working unit driven by a hydraulic cylinder in a movable range; determining whether the working unit at a stop position of the movable range has started moving based on an operation of the working unit; setting a deceleration section including an end position of the movable range and a deceleration ratio of the working unit in the deceleration section, based on the posture of the working unit in a stopped state at the stop position, and a threshold determined in advance; and outputting a command signal to a control valve, which is capable of adjusting an amount of a working oil supplied to the hydraulic cylinder, such that the working unit moves from the stop position to the end position based on the deceleration section and the deceleration ratio.
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公开(公告)号：US12180673B2
公开(公告)日：2024-12-31
申请号：US17420572
申请日：2019-12-19
Applicant: Komatsu Ltd.
Inventor： Yoshiro Iwasaki , Jun Sasaki
Abstract: A control system for a construction machine includes a target value generation unit configured to generate a target value of an amount of control of the working equipment, a prediction model storage unit configured to store a prediction model for the working equipment, a weight data acquisition unit configured to acquire weight data of the bucket, a prediction model update unit configured to update the prediction model based on the weight data, a prediction unit configured to calculate a predicted value of the amount of control of the working equipment based on the target value and the prediction model, and calculate an amount of drive to control the working equipment based on the predicted value, and a command unit configured to output a control command to control the working equipment based on the amount of drive.
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公开(公告)号：US20220106773A1
公开(公告)日：2022-04-07
申请号：US17426677
申请日：2019-12-19
Applicant: Komatsu Ltd.
Inventor： Yoshiro Iwasaki
Abstract: A control method for a construction machine includes: generating a target value of an amount of control of each of a tilt bucket and a swing body, based on operation data obtained when working equipment and the swing body are operated and a design surface indicating a target shape of a construction target; calculating a predicted value of the amount of control of each of the tilt bucket and the swing body, based on the target values and a prediction model for the construction machine; calculating amounts of drive to control the working equipment and the swing body, based on the predicted values and the design surface to maintain a distance from the tilt bucket to the design surface and an attitude of the tilt bucket; and outputting control commands to control the working equipment and the swing body based on the amounts of drive.
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公开(公告)号：US20220074165A1
公开(公告)日：2022-03-10
申请号：US17419850
申请日：2019-12-19
Applicant: Komatsu Ltd.
Inventor： Yoshiro Iwasaki
Abstract: A control system for a construction machine includes a target value generation unit configured to generate a target value of an amount of control of working equipment, a prediction unit configured to calculate a predicted value of the amount of control of the working equipment based on the target value and a prediction model for the working equipment, and calculate an amount of drive to control the working equipment based on the predicted value, and a command unit configured to output a control command for control of the working equipment based on the amount of drive.
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5.发明授权公开(公告)号：US10196796B2
公开(公告)日：2019-02-05
申请号：US15322813
申请日：2016-05-31
Applicant: Komatsu Ltd.
Inventor： Tsutomu Iwamura , Yoshiro Iwasaki , Masashi Ichihara
Abstract: A construction machine control system includes: a target construction ground shape generation unit generating a target construction ground shape indicating a target shape of an excavation target; a tilting data calculation unit calculating tilting data of a bucket tilted about a tilting axis; a regulation point position data calculation unit calculating position data of a regulation point set in the bucket based on external shape data of the bucket including at least width data of the bucket; a tilting target ground shape calculation unit calculating a tilting target ground shape extending in a lateral direction of the bucket in the target construction ground shape based on the position data of the regulation point, the target construction ground shape, and the tilting data; and a working device control unit controlling a tilting of the bucket based on a distance between the regulation point and the tilting target ground shape.
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Patent Agency Ranking
公开(公告)号：US09834908B2
公开(公告)日：2017-12-05
申请号：US15102648
申请日：2015-11-19
Applicant: Komatsu Ltd.
Inventor： Yoshiro Iwasaki , Masashi Ichihara
CPC classification number: E02F9/2267 , E02F3/32 , E02F9/18 , E02F9/2214 , E02F9/265 , G05B2219/45012
Abstract: A control method for a work machine, includes: detecting a posture of a working unit driven by a hydraulic cylinder in a movable range; determining whether the working unit at a stop position of the movable range has started moving based on an operation of the working unit; setting a deceleration section including an end position of the movable range and a deceleration ratio of the working unit in the deceleration section, based on the posture of the working unit in a stopped state at the stop position, and a threshold determined in advance; and outputting a command signal to a control valve, which is capable of adjusting an amount of a working oil supplied to the hydraulic cylinder, such that the working unit moves from the stop position to the end position based on the deceleration section and the deceleration ratio.
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公开(公告)号：US20170342680A1
公开(公告)日：2017-11-30
申请号：US15328584
申请日：2016-05-31
Applicant: Komatsu Ltd.
Inventor： Tsutomu Iwamura , Yuhei Yamamoto , Yuto Fujii , Takashi Yokoo , Yoshiro Iwasaki
CPC classification number: E02F3/435 , E02F3/32 , E02F3/3677 , E02F3/369 , E02F9/0866 , E02F9/16 , E02F9/22 , E02F9/2267 , E02F9/2271 , E02F9/2296 , E02F9/262 , E02F9/264 , G05D1/0278 , G05D2201/0202
Abstract: A work machine control system that controls a work machine including a working device having a working tool that rotates about a shaft line includes: a target construction shape generation unit that generates a target construction shape indicating a target shape of a construction target of the work machine; a target shape calculation unit that calculates a control target shape which is a target shape when controlling rotation of the working tool from the target construction shape and calculates an extended target shape obtained by extending the control target shape; and a working device control unit that controls the rotation of the working tool about the shaft line based on a distance between the working tool and the control target shape and the extended target shape.
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8.发明申请公开(公告)号：US20170342679A1
公开(公告)日：2017-11-30
申请号：US15326700
申请日：2016-05-31
Applicant: Komatsu Ltd.
Inventor： Tsutomu Iwamura , Jin Kitajima , Yoshiro Iwasaki , Yuto Fujii , Takashi Yokoo
CPC classification number: E02F3/435 , E02F3/32 , E02F3/3677 , E02F9/16 , E02F9/2004 , E02F9/2033 , E02F9/2267 , E02F9/2271 , E02F9/2285 , E02F9/2296 , E02F9/262 , G05D1/0278
Abstract: A construction machine control system includes: a target construction ground shape generation unit which generates a target construction ground shape indicating a target shape of an excavation target; a working device control instruction determination unit which outputs an instruction for driving the working device in a working device operation plane orthogonal to at least one of a boom axis, an arm axis, and a bucket axis based on an operation state of at least one of an arm and a bucket and a distance between the bucket and the target construction ground shape; and a tilting control instruction determination unit which outputs an instruction for performing a tilting control of the bucket about a tilting axis based on a tilting state of the bucket and the distance between the bucket and the target construction ground shape.
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公开(公告)号：US12054920B2
公开(公告)日：2024-08-06
申请号：US17426677
申请日：2019-12-19
Applicant: Komatsu Ltd.
Inventor： Yoshiro Iwasaki
CPC classification number: E02F9/262 , E02F3/435 , E02F9/123 , E02F9/265 , G05B13/04 , E02F3/32 , E02F9/2228
Abstract: A control method for a construction machine includes: generating a target value of an amount of control of each of a tilt bucket and a swing body, based on operation data obtained when working equipment and the swing body are operated and a design surface indicating a target shape of a construction target; calculating a predicted value of the amount of control of each of the tilt bucket and the swing body, based on the target values and a prediction model for the construction machine; calculating amounts of drive to control the working equipment and the swing body, based on the predicted values and the design surface to maintain a distance from the tilt bucket to the design surface and an attitude of the tilt bucket; and outputting control commands to control the working equipment and the swing body based on the amounts of drive.
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10.发明授权公开(公告)号：US12006662B2
公开(公告)日：2024-06-11
申请号：US17423160
申请日：2019-12-19
Applicant: Komatsu Ltd.
Inventor： Yoshiro Iwasaki
Abstract: A control system for a construction machine includes a design surface acquisition unit configured to acquire a design surface that indicates a target shape of a construction target, a target value generation unit configured to generate a target value of an amount of control of working equipment, a prediction unit configured to calculate a predicted value of the amount of control of the working equipment based on the target value and a prediction model for the working equipment, and calculate an amount of drive to control the working equipment based on the predicted value and the design surface, and a command unit configured to output a control command for control of the working equipment based on the amount of drive.
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