公开(公告)号：US11589513B2

公开(公告)日：2023-02-28

申请号：US16480486

申请日：2018-05-16

申请人： HUSQVARNA AB

发明人： Braxton W. Reese

IPC分类号： A01D69/10 ,  A01D34/00 ,  A01D34/64 ,  B62D11/00 ,  A01D101/00

摘要： A riding lawn care vehicle may include a frame, a steering assembly, a first brake assembly, and a first biasing assembly. A first drive wheel and a second drive wheel of the riding lawn care vehicle are operably coupled to the frame. The steering assembly includes a first steering lever and a second steering lever. The first and second steering levers are operably coupled to corresponding ones of the first and second drive wheels via a first hydraulic motor and a second hydraulic motor, respectively, to facilitate turning of the riding lawn care vehicle based on drive speed control of the first and second drive wheels responsive to positioning of the first and second steering levers to control the first and second hydraulic motors. The first brake assembly is operably coupled to the first hydraulic motor to enable a braking force to be selectively applied to a motor shaft of the first hydraulic motor responsive to movement of the first steering lever from an inboard position to an outboard position. The first biasing assembly is configured to positively assist movement of the first steering lever between the inboard and outboard positions in both directions.

公开(公告)号：US11528847B2

公开(公告)日：2022-12-20

申请号：US16757868

申请日：2017-10-25

申请人： Kubota Corporation

发明人： Masakazu Hino ,  Tsuyoshi Kumatori ,  Ryohei Higashitaki ,  Toshinari Nishimura ,  Shota Hayashi

IPC分类号： A01F12/56 ,  A01D41/12 ,  A01D57/12 ,  A01D61/00 ,  A01D69/00 ,  A01D90/10 ,  A01F12/10 ,  A01F12/18 ,  A01F12/32 ,  A01F12/46 ,  A01F12/48 ,  A01F12/52 ,  A01F12/60 ,  A01D67/00 ,  B62D11/08 ,  A01B69/00 ,  B62D11/00 ,  B62D11/18

摘要： A combine harvester is provided with: a threshing device that performs a threshing process of threshing a crop; a grain tank that stores grain obtained by the threshing process; a grain discharging device that discharges grain to be stored in the grain tank to the outside of the vehicle body; a travel driving device that drives travel of the vehicle body; and an engine that serves as a power source. The combine harvester includes a first relay shaft to which power is transmitted from an output shaft of the engine, and the power of the engine is transmitted from the first relay shaft to the grain discharging device and the travel driving device in a branched manner.

公开(公告)号：US11485335B2

公开(公告)日：2022-11-01

申请号：US17600497

申请日：2019-10-30

申请人： HUSQVARNA AB

发明人： Jake Bagwell ,  Mark Wagner ,  Braxton Reese

IPC分类号： B60T11/04 ,  A01D34/82 ,  B60T7/10 ,  B62D11/00 ,  F16D65/28 ,  A01D34/64 ,  A01D101/00 ,  B62D11/02 ,  F16D121/14 ,  F16D125/62 ,  F16D125/64

摘要： A riding lawn care vehicle (10) includes first and second drive wheels (32), a steering lever (34), a brake assembly (110), and a mechanical brake linkage assembly (120) including a cable tensioner (250). The brake assembly (110) may be operably coupled to at least one of the first and second drive wheels (32) to enable brakes to be selectively applied to the first and second drive wheels (32) based on a position of the steering lever (34). The cable tensioner (250) may be configured to activate the brake assembly (110) relative to the at least one of the first and second drive wheels (32) in response to the steering lever (34) being moved outwardly to an outboard position. The mechanical linkage assembly (120) may be configured to provide a greater amount of rotation of the cable tensioner (250) than a magnitude of rotation of the steering lever (34) when the steering lever (34) is moved from the inboard position to the outboard position.

公开(公告)号：US20220287219A1

公开(公告)日：2022-09-15

申请号：US17830476

申请日：2022-06-02

申请人： KUBOTA CORPORATION

发明人： Fumiya YOSHIMURA ,  Keisuke TAKEDA ,  Junki KUROISHI ,  Yusuke TAKAHASHI ,  Yuji OKUYAMA

IPC分类号： A01B69/04 ,  B62D11/00 ,  B62D6/00 ,  B62D11/08 ,  B60K17/348 ,  B62D11/20 ,  B60W30/14 ,  G05D1/02

摘要： A working machine includes a machine body, a steering device capable of changing an orientation of the machine body, a first wheel on the machine body, a second wheel on the machine body and separated from the first wheel in a machine-body width direction, a rotational difference generator to cause a rotational difference between the first and second wheels and that is a braking device, and a controller configured or programmed to include a first control unit to set a steering angle of the steering device based on a planned traveling route, and a second control unit to control the rotational difference generator based on the planned traveling route to cause a rotational difference between the first and second wheels. Based on the planned traveling route, the second control unit is configured or programmed to cause the braking device to perform setting about braking of either the first or second wheels by performing pumping control.

公开(公告)号：US20220281521A1

公开(公告)日：2022-09-08

申请号：US17824851

申请日：2022-05-25

申请人： HB PERFORMANCE SYSTEMS INC.

发明人： Clay M HENDRICKS ,  Andrew J DOUBEK

IPC分类号： B62D11/08 ,  B60T7/10 ,  B60T11/20 ,  B62D11/00

摘要： A steer/brake system for a vehicle (with wheels and/or tracks) is disclosed. The system may comprise a steering system with an operator control and braking system for each side of the vehicle with a master cylinder for the brake mechanism and an interface between the braking system and the operator control. Operation may provide a phase where the interface is at least partially engaged and force may be applied through the interface to the master cylinder to engage the brake mechanism to provide modulation for the operator control. A steering emulation system may comprise the interface and a compliant element configured to provide modulation for the operator control. The system may comprise a shared hydraulic system; the brake mechanism may comprise the steering brake mechanism and the service brake mechanism.

公开(公告)号：US11370433B1

公开(公告)日：2022-06-28

申请号：US17609493

申请日：2019-05-15

申请人： Nissan Motor Co., Ltd.

发明人： Shinya Saito

IPC分类号： B62D6/00 ,  B62D11/00 ,  B62D12/00 ,  B63G8/20 ,  G05D1/00 ,  G06F17/00 ,  A01B69/00 ,  B60W30/16 ,  B60W50/08

摘要： A travel control method includes using the vehicle to autonomously control a travel of the vehicle. The vehicle has an autonomous speed control function for autonomously controlling a traveling speed of the vehicle and an autonomous steering control function for autonomously controlling the steering of the vehicle. The autonomous speed control function includes a curved route speed control function for controlling the traveling speed of the vehicle at a set speed corresponding to the size of a curve of a travel route. The curved route speed control function can be set to ON/OFF. Each of the autonomous speed control function and the autonomous steering control function can be set to ON/OFF. When the autonomous speed control function and the autonomous steering control function are set to ON, the curved route speed control function is operated regardless of whether the curved route speed control function is set to ON or OFF.

公开(公告)号：US11305806B2

公开(公告)日：2022-04-19

申请号：US16540520

申请日：2019-08-14

申请人： Great Plains Manufacturing, Inc.

发明人： Jason Carlson

IPC分类号： G05G1/00 ,  B62D1/12 ,  B60K26/02 ,  B62D11/02 ,  E02F3/42 ,  G05G9/00 ,  G05G5/02 ,  E02F9/20 ,  G05G5/04 ,  G05G5/05 ,  E02F9/02 ,  E02F9/22 ,  B62D11/00 ,  E02F3/34 ,  E02F3/96

摘要： A vehicle steering assembly for controlling movement of a vehicle having independently rotatable left and right ground-engaging traction elements. The steering assembly comprises a steering handle coupled to the panel support structure and extending generally upwardly from the panel support structure. The steering handle comprises a laterally-extending crossmember and at least one upright extension member. The crossmember and the upright extension member are rigidly connected to one another so that shifting of the crossmember relative to the extension member is substantially prevented. The steering handle is shiftable in forward and rearward directions to thereby cause corresponding forward and rearward rotation of both of the left and right traction elements. The steering handle is rotatable in clockwise and counterclockwise directions to thereby cause a change in the relative speeds and directions of rotation of the left and right traction elements.

公开(公告)号：US11247723B2

公开(公告)日：2022-02-15

申请号：US15930575

申请日：2020-05-13

申请人： Kubota Corporation

发明人： Yasuhiro Manji

IPC分类号： B62D11/00 ,  B62D11/04

摘要： A traveling vehicle includes a left drive wheel and a right drive wheel which are driven independently by a left driving section and a right driving section, a manual operation unit configured to provide a left speed instruction for adjusting a rotational speed of the left drive wheel and a right speed instruction for adjusting a rotational speed of the right drive wheel and a drive control unit configured to control driving of the left driving section and the right driving section based on the left speed instruction and the right speed instruction, with using a first control method and a second control method which are provided with different control properties from each other. The drive control unit includes a single mode employing either one of the first control method and the second control method and a composite mode employing the first control mode and the second control mode in time-differentiated combination. In the composite mode, based on a difference between the left speed instruction and the right speed instruction, a combination ratio between the first control method and the second control method is determined.

公开(公告)号：US11175665B2

公开(公告)日：2021-11-16

申请号：US16248823

申请日：2019-01-16

申请人： AGCO International GmbH

发明人： Christian Noess

IPC分类号： G05D1/02 ,  G05D1/00 ,  B62D11/00 ,  B62D11/04 ,  B62D15/02 ,  B62D1/28 ,  A01B69/04 ,  G06F16/29

摘要： A mobile machine having a chassis, a plurality of ground-engaging elements, a plurality of actuators for driving movement of the ground-engaging elements, and a controller for controlling each of the actuators to cause the mobile machine to follow a guidance path along a ground surface. The controller is configured to generate a first set of control values for driving the machine according to a first heading based on a reference heading error of the machine and generate a second set of control values for driving the machine according to a second heading based on a distance heading error of the machine, determine a weight scheme for the first set of control values and the second set of control values dependent on a distance of the machine from the guidance path, combine the control signals using the weight scheme and drive the machine using the combined control signals.

公开(公告)号：US11091192B2

公开(公告)日：2021-08-17

申请号：US16775036

申请日：2020-01-28

申请人： AgJunction LLC

发明人： Michael Brett McMickell ,  Mark Alan Villela ,  Thomas R. Kreider ,  Jonathan L. Baker ,  Andreas F. Ramm

IPC分类号： B62D11/00 ,  B62D5/04 ,  G06F9/451 ,  B60W50/08 ,  B62D15/02 ,  G05D1/02

摘要： Cost of a precision farming guidance system is driven in part by the number of discrete system elements installed in a tractor including the steering actuator, guidance computer, user terminals, and the associated cable harnesses. An integrated guidance system arranges and integrates these separate elements into a base chassis and removable computer module to reduce cost and complexity while retaining flexibility to adapt to different vehicle configurations and to incorporate improved guidance computer technology into a common design platform.