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公开(公告)号：US11654960B2
公开(公告)日：2023-05-23
申请号：US16860485
申请日：2020-04-28
Applicant: DEERE & COMPANY
Inventor： David V. Rotole , Ryan J. Goodrich , Thomas D. Morrison , Andrew W. Baker , Tyler K. Farrington
Abstract: A hydraulic system for controlling a pair of steerable caster wheels includes a left steering command valve, a right steering command valve, and a rear steering control valve. A supply pressure fluid circuit interconnects a pressure source and the rear steering control valve. A command valve supply fluid circuit interconnects the rear steering control valve with both the right steering command valve and the left steering command valve. A left side steering fluid circuit interconnects a left side actuator and the left steering command valve. A right side steering fluid circuit interconnects a right side actuator and the right steering command valve. A fluidic tie rod fluid circuit interconnects both the left side actuator and the right side actuator with the rear steering control valve. A tank return fluid circuit interconnects the rear steering control valve, the left and right steering command valves, and a tank.
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公开(公告)号：US11375663B2
公开(公告)日：2022-07-05
申请号：US16276948
申请日：2019-02-15
Applicant: DEERE & COMPANY
Inventor： David V. Rotole
Abstract: A ground contour sensing system and method for a vehicle with a mowing head. The system includes a sensor system that measures a ground contour in front of the mowing head, and generates contour measurement signals; and a controller that determines whether to move the mowing head based on the contour measurement signals, and generates movement commands for the mowing head when it determines to move the mowing head. The mowing head can include tilt and lift cylinders, and the controller can determine whether to move the mowing head using the tilt or lift cylinders. The sensor system can include a pivot arm that moves in response to changes in the ground contour, and an angle sensor that measures an angle of the pivot arm. There can be one or more sensor systems positioned between the right and left sides of the mowing head.
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公开(公告)号：US10661831B2
公开(公告)日：2020-05-26
申请号：US15922672
申请日：2018-03-15
Applicant: Deere & Company
Inventor： David V. Rotole
IPC: B62D6/10 , B62D11/24 , B62D5/12 , B62D5/09 , A01B69/04 , A01B69/00 , B62D5/08 , B62D1/28 , B62D5/06
Abstract: A steering system is provided for an agricultural vehicle having steerable wheels of a first wheel set, first and second steerable wheels of a second wheel set, and a steering input device configured to receive a manual steering input for the wheels of the first wheel set. The steering system includes first and second hydraulic steering devices coupled to the first and second steerable wheels of the second wheel set; a valve assembly configured to hydraulically control the hydraulic steering devices to steer the wheels of the second wheel set; and a controller configured to determine steering commands and provide the steering commands to the valve assembly. In a rear stability mode, the valve assembly is configured to selectively dampen fluid flow between the first and second hydraulic steering devices.
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公开(公告)号：US20180325028A1
公开(公告)日：2018-11-15
申请号：US15937620
申请日：2018-03-27
Applicant: Deere & Company
Inventor： David V. Rotole , Mitchell R. Usasz , Ethan C. Conrad
IPC: A01D41/127 , A01D41/12
CPC classification number: A01D41/127 , A01D34/66 , A01D41/1243 , A01D43/10 , A01D43/102 , A01D82/02 , G05D3/12
Abstract: A forming shield arrangement configured for a windrowing work vehicle is supported for movement by a support structure. The forming shield arrangement is configured to at least partly shape a windrow of a crop material. A method of operating the forming shield arrangement includes receiving, by a processor of a control system from a memory element, a stored position setting that corresponds to a position of the forming shield arrangement relative to the support structure. The method also includes processing, by the processor, a positioning control signal based, at least in part, on the stored position setting. Moreover, the method includes changing, with an actuator, the position of the forming shield arrangement according to the positioning control signal.
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公开(公告)号：US20180116115A1
公开(公告)日：2018-05-03
申请号：US15665182
申请日：2017-07-31
Applicant: Deere & Company
Inventor： David V. Rotole , Kellen B. Hill , Joshua D. Graeve , Roger D. Stephenson , Stephen K. Parsons
CPC classification number: A01D41/1243 , A01B79/005 , A01D45/30 , A01D47/00 , A01D78/14 , A01F12/40 , A01F12/46 , A01F29/01 , G05D2201/0201
Abstract: A work vehicle for working a swath of crop has at least one ground-engaging wheel or track mounted to the work vehicle and movable in a travel direction along a tread path. A first redistribution device is mounted to the work vehicle to move crop that is ahead of the at least one ground-engaging wheel or track relative to the travel direction. A second redistribution device is mounted to the work vehicle to move crop that is behind the at least one ground-engaging wheel or track relative to the travel direction. The first redistribution device is configured to open the swath of crop along substantially only the tread path ahead of the at least one ground-engaging wheel or track relative to the travel direction, and the second redistribution device is configured to close the swath of crop along the tread path behind the at least one ground-engaging wheel or track relative to the travel direction.
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Patent Agency Ranking
公开(公告)号：US20170234426A1
公开(公告)日：2017-08-17
申请号：US15404779
申请日：2017-01-12
Applicant: Deere & Company
Inventor： Tom Morrison , David V. Rotole , Eric M. Thies , Mitchell R. Usasz , Walter Craig Wright
IPC: F16H61/437 , F16H61/4192
CPC classification number: F16H61/437 , B60Y2200/222
Abstract: A method of adjusting a hydraulic drive system includes determining a forward park position value, a reverse park position value, an initial forward position value, and an initial reverse position value of a control device and using these values to calculate a forward buffer value and a reverse buffer value. The forward buffer value and the reverse buffer value are used to determine an adjustment amount for the drive system. The adjustment amount can be used to properly adjust a drive system to avoid system errors.
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公开(公告)号：US09439341B2
公开(公告)日：2016-09-13
申请号：US14455716
申请日：2014-08-08
Applicant: DEERE & COMPANY
Inventor： Thomas D. Bebernes , Thomas A. Nichols , David V. Rotole , Walter C. Wright
IPC: A01B69/00 , B62D5/09 , G05D1/02 , B62D5/065 , A01B69/04 , B62D5/06 , B62D11/00 , B62D11/24 , B62D11/04
CPC classification number: B62D6/007 , A01B69/007 , A01B69/008 , B62D5/06 , B62D5/065 , B62D5/09 , B62D5/091 , B62D6/002 , B62D6/08 , B62D11/003 , B62D11/005 , B62D11/04 , B62D11/24 , G05D1/0212 , G05D1/0278
Abstract: A steering system and method is described for a vehicle having steerable front and rear wheels, and a steering input device for receiving manual steering input. Front and rear hydraulic steering devices may be coupled, respectively, to the front and rear wheels. Front and rear valve assemblies may be configured, respectively, to steer the front and rear wheels. In a manual steering mode, the front valve assembly may be disabled with respect to the front steering device, and the front hydraulic steering device may steer the front wheels based upon the manual steering input. In a rear steering assist mode, a rear steering command may be determined based upon the manual steering input, and the rear wheels steered based upon the rear steering command. In an automated steering mode, the front and rear wheels may be automatically steered based upon a target path of travel for the vehicle.
Abstract translation: 对具有可转向的前轮和后轮的车辆以及用于接收手动转向输入的转向输入装置描述了转向系统和方法。 前后液压转向装置可以分别联接到前轮和后轮。 前和后阀组件可以分别构造成转向前轮和后轮。 在手动转向模式中，可以相对于前转向装置禁用前阀组件，并且前液压转向装置可以基于手动转向输入来转向前轮。 在后转向辅助模式中，可以基于手动转向输入确定后转向指令，并且基于后转向指令转向后轮。 在自动转向模式中，前轮和后轮可以基于车辆的目标行进路径自动转向。
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公开(公告)号：US20160037721A1
公开(公告)日：2016-02-11
申请号：US14455578
申请日：2014-08-08
Applicant: DEERE & COMPANY
Inventor： Kyle R. Teach , Thomas A. Nichols , David V. Rotole , Walter C. Wright
IPC: A01D41/14
CPC classification number: A01D41/145 , F15B21/005 , F15B21/08 , F15B21/087
Abstract: A pressure control system is described for a vehicle having a hydraulically actuated header. The system may include a hydraulic lifting circuit for raising and lowering the header, a hydraulic float circuit for floating the header, and a drain tank. A lifting circuit control valve may be configured to control drainage of hydraulic fluid from the hydraulic lifting circuit to the drain tank. A float circuit control valve may be configured to control drainage of hydraulic fluid from the hydraulic float circuit to the drain tank. A user interface may be configured to receive one or more inputs to control drainage of hydraulic fluid from the hydraulic circuits. Based upon the one or more inputs, at least one of the control valves may be opened, in order to depressurize, respectively, one of the hydraulic circuits.
Abstract translation: 对具有液压致动头部的车辆描述了压力控制系统。 该系统可以包括用于升高和降低集管的液压提升回路，用于浮置集管的液压浮动回路和排水箱。 提升回路控制阀可以被配置为控制从液压提升回路到排水箱的液压流体的排水。 浮动回路控制阀可以被配置为控制液压流体从液压浮子回路到排水箱的排水。 用户接口可以被配置为接收一个或多个输入以控制来自液压回路的液压流体的排放。 基于一个或多个输入，可以打开至少一个控制阀，以便分别地将一个液压回路减压。
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公开(公告)号：US20160037707A1
公开(公告)日：2016-02-11
申请号：US14455716
申请日：2014-08-08
Applicant: DEERE & COMPANY
Inventor： Thomas D. Bebernes , Thomas A. Nichols , David V. Rotole , Walter C. Wright
CPC classification number: B62D6/007 , A01B69/007 , A01B69/008 , B62D5/06 , B62D5/065 , B62D5/09 , B62D5/091 , B62D6/002 , B62D6/08 , B62D11/003 , B62D11/005 , B62D11/04 , B62D11/24 , G05D1/0212 , G05D1/0278
Abstract: A steering system and method is described for a vehicle having steerable front and rear wheels, and a steering input device for receiving manual steering input. Front and rear hydraulic steering devices may be coupled, respectively, to the front and rear wheels. Front and rear valve assemblies may be configured, respectively, to steer the front and rear wheels. In a manual steering mode, the front valve assembly may be disabled with respect to the front steering device, and the front hydraulic steering device may steer the front wheels based upon the manual steering input. In a rear steering assist mode, a rear steering command may be determined based upon the manual steering input, and the rear wheels steered based upon the rear steering command. In an automated steering mode, the front and rear wheels may be automatically steered based upon a target path of travel for the vehicle.
Abstract translation: 对具有可转向的前轮和后轮的车辆以及用于接收手动转向输入的转向输入装置描述了转向系统和方法。 前后液压转向装置可以分别联接到前轮和后轮。 前和后阀组件可以分别构造成转向前轮和后轮。 在手动转向模式中，可以相对于前转向装置禁用前阀组件，并且前液压转向装置可以基于手动转向输入来转向前轮。 在后转向辅助模式中，可以基于手动转向输入确定后转向指令，并且基于后转向指令转向后轮。 在自动转向模式中，前轮和后轮可以基于车辆的目标行进路径自动转向。
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公开(公告)号：US11248687B2
公开(公告)日：2022-02-15
申请号：US17015789
申请日：2020-09-09
Applicant: Deere & Company
Inventor： David V. Rotole , Ethan C. Conrad
IPC: F16H21/54 , A01D43/00 , A01D43/10 , A01D101/00 , F16H37/12
Abstract: A mower-conditioner includes first and second conditioning rolls, adjustment assembly, and a linkage. The adjustment assembly includes a first member having a first helical surface and a second member having a second helical surface in contact with each other. The linkage is coupled between the at least one adjustment assembly and the first conditioning roll. The rotation of the at least one adjustment assembly about a pivot axis causes the first conditioning roll to move via the linkage, which adjusts the distance between the first and second conditioning rolls.
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