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公开(公告)号：US11835643B2
公开(公告)日：2023-12-05
申请号：US16982775
申请日：2019-02-27
Applicant: Komatsu Ltd.
Inventor： Daisuke Tanaka , Tatsuya Shiga
IPC: G01S7/40 , G01S13/86 , G01S13/931 , G01S19/46
CPC classification number: G01S7/40 , G01S13/86 , G01S13/931 , G01S19/46 , G01S2013/932
Abstract: A work machine control method includes: acquiring a detection position of a landmark detected by a non-contact sensor provided in a work machine in traveling of the work machine traveling on a traveling path; calculating a first relative distance between the non-contact sensor and the landmark on a basis of the detection position of the landmark; calculating a second relative distance between the non-contact sensor and the landmark on a basis of a registration position of the landmark; calculating a correction value relating to a relative distance between the non-contact sensor and the landmark on a basis of the first relative distance and the second relative distance; correcting the first relative distance on a basis of the correction value to calculate a corrected relative distance between the non-contact sensor and the landmark; and controlling a traveling state of the work machine on a basis of the corrected relative distance.
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公开(公告)号：US20210055126A1
公开(公告)日：2021-02-25
申请号：US16967156
申请日：2019-02-05
Applicant: Komatsu Ltd.
Inventor： Daisuke Tanaka , Tatsuya Shiga
Abstract: A control system for a work machine includes a position sensor that detects a position of a work machine traveling on a traveling road, a non-contact sensor that detects a position of an object around the work machine, and a map data creation unit that creates map data on the basis of a detection point on the object and detection data of the position sensor, the detection point being detected by the non-contact sensor and satisfying a prescribed height condition.
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公开(公告)号：US10202116B2
公开(公告)日：2019-02-12
申请号：US15115782
申请日：2015-11-27
Applicant: KOMATSU LTD.
Inventor： Tatsuya Shiga , Ryuuen Kou , Akiharu Nishijima
Abstract: A control system of a mining machine controls a driving device that drives a traveling device of the mining machine. The control system includes an acceleration command value calculation unit that calculates an acceleration command value for accelerating the mining machine, a correction value calculation unit that calculates a correction value for the acceleration command value based on a first driving force component of the driving device to cause the mining machine to travel at a target traveling speed and a second driving force component of the driving device to offset a resistance component against traveling of the mining machine, an addition processing unit that calculates a correction acceleration command value by adding the acceleration command value and the correction value, and an acceleration command value output unit that outputs the correction acceleration command value to the driving device.
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公开(公告)号：US20170285658A1
公开(公告)日：2017-10-05
申请号：US15311226
申请日：2016-03-31
Applicant: Komatsu Ltd.
Inventor： Atsushi Sakai , Tatsuya Shiga , Ryuuen Kou
CPC classification number: G05D1/0278 , B60T7/00 , B60T7/18 , B60T7/22 , B60T2201/02 , B60T2201/022 , B60T2210/36 , B60Y2200/41 , G01C21/12 , G01C21/165 , G01C21/26 , G01S19/14
Abstract: A work vehicle control system controls a work vehicle having a braking device. The work vehicle control system includes a location information generating unit that obtains and outputs a location of the work vehicle, and a control unit that controls the braking device based on location information of the work vehicle obtained from the location information generating unit. The control unit determines braking force that controls the braking device based on first accuracy that is accuracy of the location information of the work vehicle obtained from the location information generating unit.
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公开(公告)号：US12181882B2
公开(公告)日：2024-12-31
申请号：US16982077
申请日：2019-02-27
Applicant: Komatsu Ltd.
Inventor： Daisuke Tanaka , Tatsuya Shiga , Mitsuhiro Ryuman , Atsushi Sakai
Abstract: A work machine control system includes: a position sensor detecting a position of a work machine traveling on a traveling path; first and second non-contact sensors provided in the work machine and detecting a position of an object around the work machine; a map data creation unit creating map data based on detection data of the position sensor and detection data of the first non-contact sensor; a first position calculation unit calculating a first position of the work machine by matching the map data and the detection data of the first non-contact sensor; a second position calculation unit calculating a second position of the work machine based on detection data of the second non-contact sensor; and an integrated position determination unit determining an integrated position of the work machine by integrating the first and second positions.
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Patent Agency Ranking
公开(公告)号：US11745767B2
公开(公告)日：2023-09-05
申请号：US16962043
申请日：2019-02-05
Applicant: Komatsu Ltd.
Inventor： Daisuke Tanaka , Tatsuya Shiga
IPC: B60W60/00 , G01C21/00 , G01S17/89 , G05D1/02 , G08G1/017 , G08G1/0969 , G01S17/86 , G01S13/86 , G01S13/89
CPC classification number: B60W60/0025 , G01C21/3826 , G01C21/3848 , G01S17/89 , G05D1/0274 , G08G1/017 , G08G1/0969 , B60W2300/12 , G01S13/865 , G01S13/89 , G01S17/86 , G05D2201/0202
Abstract: A work machine control system includes: a position sensor that detects the position of a work machine travelling on a traveling path; a non-contact sensor that detects the position of an object around the work machine; and a map data creation unit that creates map data on the basis of a detection point of the object and detection data of the position sensor, the detection point being detected by the non-contact sensor and satisfying a defined matching condition.
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公开(公告)号：US20220089178A1
公开(公告)日：2022-03-24
申请号：US17417616
申请日：2019-11-21
Applicant: Komatsu Ltd.
Inventor： Tatsuya Shiga , Yoshiaki Itakura
Abstract: A control system of an unmanned vehicle includes: a switching unit that can switch the unmanned vehicle, which has blinkers, between a manual mode and an automatic mode; a determination unit that determines whether the blinkers are operated; and a traveling control unit that controls traveling of the unmanned vehicle on the basis of determination data of the determination unit.
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公开(公告)号：US20250020460A1
公开(公告)日：2025-01-16
申请号：US18713749
申请日：2022-11-21
Applicant: Komatsu Ltd.
Inventor： Tatsuya Shiga , Daisuke Tanaka
IPC: G01C9/02
Abstract: A management system for a work vehicle includes: a standard value calculation unit that calculates a standard value related to a detection value based on the detection value of a first attitude angle sensor when a work vehicle including the first attitude angle sensor stops at a predetermined position of a work site; and a diagnosis unit that determines presence or absence of abnormality of a second attitude angle sensor based on the standard value calculated by the standard value calculation unit and a detection value of the second attitude angle sensor when a work vehicle including the second attitude angle sensor stops at the predetermined position.
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公开(公告)号：US20220212597A1
公开(公告)日：2022-07-07
申请号：US17607117
申请日：2020-05-25
Applicant: Komatsu Ltd.
Inventor： Tatsuya Shiga , Kouichi Yamashita , Katsuki Awamori , Daisuke Tanaka
Abstract: A system of controlling an unmanned vehicle includes: a travel course data acquisition unit that acquires travel course data including blinker data for controlling a blinker provided in an unmanned vehicle; an operation data acquisition unit that acquires operation data of a blinker operation device provided in the unmanned vehicle; and a blinker control unit that controls the blinker based on the blinker data acquired by the travel course data acquisition unit when the operation data is acquired by the operation data acquisition unit at a time when the unmanned vehicle operates based on the travel course data.
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公开(公告)号：US20210096569A1
公开(公告)日：2021-04-01
申请号：US16982077
申请日：2019-02-27
Applicant: Komatsu Ltd.
Inventor： Daisuke Tanaka , Tatsuya Shiga , Mitsuhiro Ryuman , Atsushi Sakai
Abstract: A work machine control system includes: a position sensor detecting a position of a work machine traveling on a traveling path; first and second non-contact sensors provided in the work machine and detecting a position of an object around the work machine; a map data creation unit creating map data based on detection data of the position sensor and detection data of the first non-contact sensor; a first position calculation unit calculating a first position of the work machine by matching the map data and the detection data of the first non-contact sensor; a second position calculation unit calculating a second position of the work machine based on detection data of the second non-contact sensor; and an integrated position determination unit determining an integrated position of the work machine by integrating the first and second positions.
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