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公开(公告)号：EP3345799A1
公开(公告)日：2018-07-11
申请号：EP16841202.1
申请日：2016-05-25
申请人： Kubota Corporation
IPC分类号： B60W50/02 , A01B69/00 , B60W30/18 , B60W40/12 , B60W50/038
CPC分类号： G05D1/0088 , A01B69/00 , A01D41/127 , B60W30/18 , B60W40/12 , B60W50/02 , B60W50/038 , G05D1/0278 , G05D2201/0201
摘要： A travel working machine includes: an automatic travel control unit (61) configured to implement automatic travel based on automatic travel information necessary for automatic travel; a manual travel control unit (52) configured to implement manual travel based on an operation signal from a manual travel operating unit (9); a machine body status detecting unit (51 configured to output machine body status information indicating a machine body status based on the operation signal and a detection signal received from a status detecting device (8); and an automatic travel management section (7) configured to determine forbiddance of automatic travel by the automatic travel control unit (61) and permission of the automatic travel based on the machine body status information, and output a control command in automatic travel forbiddance, for deciding control of the machine body after a command to forbid the automatic travel has been issued, based on the machine body status information.
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公开(公告)号：EP4458602A1
公开(公告)日：2024-11-06
申请号：EP22915554.4
申请日：2022-11-10
申请人： Kubota Corporation
摘要： An electric work vehicle includes: a battery (4) installed in a machine body; an inverter (14) that converts DC power output from the battery (4) to AC power; a motor (M) driven by the AC power converted by the inverter (14); a rotational speed information obtaining unit (41) that obtains rotational speed information indicative of a rotational speed of the motor (M); a travel device (42) driven by the motor (M); an operation member (43) that changes a required rotational speed required for the motor (M); and a controller (44) that controls a current flowing through the motor (M) by running the inverter (14) in accordance with the rotational speed information and the required rotational speed. When a load applied to the motor (M) is higher than a load set in advance, the controller (44) is configured to stop driving the motor (M) irrespective of the required rotational speed.
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公开(公告)号：EP3900510A1
公开(公告)日：2021-10-27
申请号：EP19900962.2
申请日：2019-12-06
申请人： Kubota Corporation
发明人： TAKASE, Shunya , MISAKI, Shinji
摘要： A traveling work machine includes: a machine body provided with a travel apparatus; a position detection unit capable of detecting position information of the machine body on the basis of a positioning signal of a navigation satellite; a travel trajectory obtainment unit capable of obtaining a travel trajectory of the machine body on the basis of detection, over time, of the position information; a target heading calculation unit that calculates a target heading on the basis of the travel trajectory; a maneuvering control unit capable of controlling the travel apparatus to maneuver along the target heading; and a single operating tool capable of setting both a start point and an end point of the travel trajectory obtained when calculating the target heading.
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公开(公告)号：EP3900507A1
公开(公告)日：2021-10-27
申请号：EP19898663.0
申请日：2019-12-06
申请人： Kubota Corporation
摘要： A traveling work machine alternately and repeatedly performs a plurality of instances of work travel, in which a working device performs work while the traveling work machine automatically travels in a field along a pre-set target heading, and turning travel, in which the traveling work machine moves to a start position Ls2 of the next work travel while reversing a travel direction. The traveling work machine includes: a position detection unit that obtains position information of a machine body on the basis of a positioning signal from a navigation satellite; an end determination unit capable of determining the end of each of a plurality of instances of work travel; a start position calculation unit that calculates start positions Ls and Ls2; and a display unit capable of displaying information pertaining to the turning travel. When the end determination unit determines the end of the work travel, the start position calculation unit calculates, on the basis of the position information, the start position Ls2 on one of the left and right with respect to the travel direction of the machine body during the work travel, and the display unit displays guidance information guiding the turning travel to the start position Ls2.
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公开(公告)号：EP4454447A1
公开(公告)日：2024-10-30
申请号：EP22910832.9
申请日：2022-12-02
申请人： Kubota Corporation
IPC分类号： A01B71/02 , B60L15/00 , B60L15/20 , A01D34/64 , B60K17/10 , B60K17/28 , B60L50/60 , H02M7/48
摘要： An electric work vehicle includes a motor control section that controls a motor (M), a power take-off shaft (17, 18) capable of being connected to a work device and capable of transmitting rotational power from the motor (M) to the work device, and a distribution mechanism (20) that distributes rotational power output from the motor (M) to a hydraulic continuously variable transmission (15) and the power take-off shaft (17, 18). The hydraulic continuously variable transmission (15) changes the speed of rotational power input to the hydraulic continuously variable transmission, and outputs the resulting rotational power to a travel device. The motor control section executes maintenance control for maintaining the output rotation speed of the motor (M) at a rotation speed corresponding to a target rotation speed of the power take-off shaft (17, 18). The transmission state of the hydraulic continuously variable transmission (15) can be changed according to manual operation of a speed change operation tool while the maintenance control is executed.
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公开(公告)号：EP4026416A1
公开(公告)日：2022-07-13
申请号：EP20861725.8
申请日：2020-09-02
申请人： KUBOTA CORPORATION
发明人： TAKASE, Shunya , SUGA, Hiroki , MISAKI, Shinji , MATSUDA, Koji , SHIMIZU, Yuto
IPC分类号： A01B69/00
摘要： Provided is a working vehicle (1) in which an operator can easily perform operation relating to automatic steering even while looking rearward. The working vehicle (1) includes an operator's seat (10) on which an operator sits, a vehicle body (3) configured to travel selectively using either manual steering or automatic steering, the manual steering being performed manually by the operator, and the automatic steering being performed on the basis of a position of the vehicle body (3) detected by a positioning device (40) without manual operation by the operator; and a first operation member (54) disposed on a lateral side of the operator's seat (10) operably to perform an operation relating to the automatic steering, the first operation member (54) being configured to be operated to selectively start or terminate the automatic steering during rearward traveling of the vehicle body (3) or to correct the position of the vehicle body (3) during rearward traveling of the vehicle body (3). ( Fig. 1 )
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公开(公告)号：EP4458605A1
公开(公告)日：2024-11-06
申请号：EP22915528.8
申请日：2022-10-31
申请人： Kubota Corporation
摘要： An electric work vehicle includes: a battery (4) installed in a machine body; an inverter (14) that converts DC power that is based on output from the battery (4) to AC power; a motor (M) driven by the AC power converted by the inverter (14); a rotational speed information obtaining unit (41) that obtains rotational speed information indicative of a rotational speed of the motor (M); a travel device (42) driven by the motor (M); an operation member (43) that changes a required rotational speed required for the motor (M); a storage unit (45) storing an output map defining a relationship between a torque value that the motor (M) is allowed to output and the rotational speed of the motor (M); and a controller (44) that controls a current flowing through the motor (M) by running the inverter (14) based on the rotational speed information, the required rotational speed, and the output map, wherein the output map is set so as to have a shape similar to a shape of a torque curve of an engine in a high rotation range where the rotational speed of the motor (M) is at least a predetermined rotational speed.
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公开(公告)号：EP4331900A1
公开(公告)日：2024-03-06
申请号：EP23169636.0
申请日：2023-04-24
申请人： Kubota Corporation
发明人： OKAZAKI, Kazuto , TAKASE, Shunya
摘要： An electric work vehicle comprises: a battery (4) configured to store electric power; a motor generator (M) conductively connected to the battery (4); a power transfer device having a power output shaft (17, 18, 20) configured to transfer motive power from the motor generator (M); and a controller configured to switch between a first mode and a second mode.
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公开(公告)号：EP4321371A1
公开(公告)日：2024-02-14
申请号：EP23169074.4
申请日：2023-04-20
申请人： Kubota Corporation
发明人： OKAZAKI, Kazuto , TAKASE, Shunya
摘要： A charging system comprises: a first battery 4 mountable in an electric work vehicle 1; a second battery 51 mountable in an electric automobile 50; and a converter 52 capable of conductively connecting to the first battery 4 and the second battery 51, and also capable of converting first electric power from the second battery 51 to second electric power receivable by the first battery 4 and transmitting the second electric power to the first battery 4.
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公开(公告)号：EP4026413A1
公开(公告)日：2022-07-13
申请号：EP20860812.5
申请日：2020-09-02
申请人： KUBOTA CORPORATION
发明人： TAKASE, Shunya , SUGA, Hiroki
IPC分类号： A01B69/00 , B60R11/02 , B62D101/00 , B62D113/00 , B62D127/00 , B62D137/00 , B62D6/00
摘要： Automatic steering control is prevented from being performed when a positioning device (30) is in the second position (X2). A working vehicle (1) includes the positioning device (30) to detect a position of a vehicle body (5) based on a signal transmitted from a positioning satellite. The positioning device (30) is supported so as to allow the positioning device to be shifted between a first position (X1) and a second position (X2) lower than the first position (X1). A mounting stay (47) is disposed below the positioning device (30) when the positioning device (30) is in the first position (X1), and, when the positioning device (30) is rotated together with the mounting stay (47) from the state in which the positioning device (30) is in the first position (X1), the positioning device (30) is moved to the second position (X2) and the mounting stay (47) is positioned above the positioning device (30) in the second position (X2) and covers over the positioning device (30) so as to restrain the automatic steering control. ( Fig. 9 )
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