公开(公告)号：US12018454B2

公开(公告)日：2024-06-25

申请号：US17150532

申请日：2021-01-15

申请人： Caterpillar Inc.

发明人： Michael D. Case ,  Mihai Lazaroiu ,  Rafael R. Dela Rosa ,  Brad Robert Van De Veer ,  Keegan Roach

IPC分类号： E02F9/20 ,  B62D65/02 ,  E02F3/28 ,  E02F9/16 ,  E02F9/22

CPC分类号： E02F9/2004 ,  B62D65/02 ,  E02F3/283 ,  E02F9/16 ,  E02F9/22

摘要： A work machine, an implement control console, a plurality of unique implement control pods, and a method of installing an implement control pod onto a work machine are disclosed. The work machine comprises a power unit, a locomotive device, an implement arm, a work tool, and an implement control console for controlling one or more functions of the work machine's components. The implement control console comprises a universal mounting bracket and an implement control pod, where the plurality of unique implement control pods may be installed, one at a time, to the universal mounting bracket. Advantageously, the plurality of unique implement control pods share a number of components, while the design of each implement control pod allows for concurrent one-handed operation.

公开(公告)号：US11993178B2

公开(公告)日：2024-05-28

申请号：US17257020

申请日：2019-06-28

申请人： ZF Friedrichshafen AG

发明人： Norbert Feuchtner

IPC分类号： B60L7/26 ,  B60L58/10 ,  E02F9/20 ,  E02F9/22 ,  E02F3/28

CPC分类号： B60L7/26 ,  B60L58/10 ,  E02F9/207 ,  E02F9/2225 ,  E02F9/2278 ,  B60L2200/40 ,  B60L2240/545 ,  E02F3/283 ,  E02F9/2091

摘要： A method for operating a drive system for a work machine is described. A first electric motor is associated with a travel drive of the drive system and a second electric motor is associated with a work drive of the drive system. An electric energy store for operating the first and the second electric motors is associated with the travel drive and the work drive. The method includes operating the first electric motor in generator mode to produce braking power of the travel drive, electric power being produced in the generator mode. The method further includes supplying, completely or partly to the energy store and/or to the second electric motor depending on a state of the energy store, the electric power.

公开(公告)号：US11891781B2

公开(公告)日：2024-02-06

申请号：US17251069

申请日：2019-03-13

申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.

发明人： Koji Hyodo ,  Fumihiro Nakao ,  Yasunori Miyamoto ,  Masaki Nukii

IPC分类号： E02F9/22 ,  E02F3/28 ,  E02F9/02 ,  F15B15/00

CPC分类号： E02F9/2253 ,  E02F3/283 ,  E02F9/02 ,  E02F9/2228 ,  E02F9/2292 ,  E02F9/2296 ,  F15B15/00 ,  E02F9/2285

摘要： A loading vehicle is capable of improving work efficiency by adjusting engine rotational speed with high accuracy in accordance with an operation state of the working device. An HST traveling driven wheel loader has an electrically controlled HST pump. A controller is configured to control input torque of the HST pump 31 and solenoid proportional pressure reducing valve is configured to generate control pressure for controlling displacement volume of the pump based on a control signal from the controller. The controller is configured to calculate the displacement volume q of the HST pump based on discharge pressure Pf of a loading hydraulic pump so that maximum input torque Thst of the HST pump decreases as the discharge pressure Pf or input torque of the loading hydraulic pump increases, and output a control signal corresponding to the calculated displacement volume q to the solenoid proportional pressure reducing valve.

公开(公告)号：US11885100B2

公开(公告)日：2024-01-30

申请号：US16432553

申请日：2019-06-05

申请人： Clark Equipment Company

发明人： Dennis Agnew ,  Matthew Sagaser ,  David A. Owens

IPC分类号： B62D55/04 ,  E02F9/20 ,  E02F3/28 ,  E02F3/36 ,  E02F9/02

CPC分类号： E02F9/20 ,  E02F3/283 ,  E02F3/36 ,  E02F9/02

摘要： Disclosed embodiments are directed to quad track skid-steer loaders and power machines having a frame, a cab, and a lift arm assembly pivotally coupled to the frame rearward of at least a portion of the cab and extending forward of the frame. A first axle assembly and a second axle assembly on a first side of the frame mount first and second track assemblies. A third axle assembly and a fourth axle assembly on a second side of the frame mount third and fourth track assemblies. A first drive motor rotates the first and second axles to drive the first and second track assemblies and a second drive motor rotates the third and fourth axles to drive the third and fourth track assemblies.

公开(公告)号：US11881061B2

公开(公告)日：2024-01-23

申请号：US16962580

申请日：2019-03-14

申请人： KOMATSU LTD.

发明人： Masaki Daimon ,  Hiroyuki Aratame

IPC分类号： G07C5/02 ,  E02F3/28 ,  E02F9/20 ,  E02F9/26 ,  E02F9/22

CPC分类号： G07C5/02 ,  E02F3/283 ,  E02F9/2004 ,  E02F9/26 ,  E02F9/2225

摘要： A time period for which an ineffective operation is performed during an excavation work is reduced. A work machine includes a vehicular body, a running wheel rotatably attached to the vehicular body, a work implement operable with respect to the vehicular body, an operation apparatus for operating the running wheel and the work implement, and a controller that controls an operation by the work machine. The controller determines that an ineffective operation in which the work implement does not work is being performed during the excavation work based on an operation command value output from the operation apparatus and outputs a time period for which the ineffective operation is being performed.

公开(公告)号：US11834812B2

公开(公告)日：2023-12-05

申请号：US17426364

申请日：2020-03-18

申请人： KOMATSU LTD.

发明人： Shota Yamawaki ,  Shogo Miyazaki

IPC分类号： E02F9/26 ,  E02F3/28 ,  E02F3/43 ,  E02F9/22

CPC分类号： E02F9/264 ,  E02F3/283 ,  E02F3/431 ,  E02F9/2271

摘要： A work machine includes a main body, a boom to drive with respect to the main body, a work tool connecting to the boom, the work tool to drive with respect to the boom, an actuator connecting to the main body and the work tool, the actuator to drive the work tool, and a sub-link to transmit drive of the actuator to the work tool. A method for calibrating the work machine includes outputting a detection value to detect an angle of the sub-link with respect to the boom in a predetermined posture of the boom and a work tool posture, converting the detection value as a measurement angle of the sub-link with respect to the boom based on a conversion value, and calibrating the conversion value based on a relationship between the measurement angle and an actual angle in the work tool posture which is specified.

公开(公告)号：US11761174B2

公开(公告)日：2023-09-19

申请号：US16977830

申请日：2019-02-06

申请人： ZF Friedrichshafen AG

发明人： Juergen Legner

IPC分类号： E02F9/22 ,  B60K1/02 ,  B60L1/00 ,  E02F9/20 ,  B60L15/20 ,  E02F3/28 ,  E02F3/43

CPC分类号： E02F9/2246 ,  B60K1/02 ,  B60L1/003 ,  B60L15/20 ,  E02F9/207 ,  E02F9/2235 ,  E02F9/2296 ,  B60L2200/40 ,  B60L2220/42 ,  B60L2240/423 ,  B60L2250/26 ,  B60L2260/22 ,  E02F3/283 ,  E02F3/431

摘要： A drive for a machine includes a computer configured to control a first electric motor for driving vehicle wheels and a second electric motor for driving a work attachment. The second electric motor is configured to drive at least one hydraulic pump with an adjustable stroke volume. A sensor is configured to detect the stroke volume of the pump. The computer processes the stroke volume to control the second electric motor.

公开(公告)号：US11702051B2

公开(公告)日：2023-07-18

申请号：US17222288

申请日：2021-04-05

申请人： Deere & Company

发明人： David Myers ,  Michael R. Gratton ,  Michael G. Kean ,  Todd F. Velde ,  Dustin T. Staade ,  Matthew Sbai ,  Ryan Detweiler ,  Grant R. Henn ,  Mary B. Wigginton ,  Aaron R. Kenkel

IPC分类号： E02F9/20 ,  G07C5/02 ,  B60T7/22 ,  B60Q1/02 ,  E02F3/28 ,  E02F9/26 ,  B60Q5/00 ,  E02F9/24 ,  B60T8/18 ,  B60T8/171 ,  B60T8/32 ,  B60T8/58 ,  B60Q9/00 ,  G07C5/08

CPC分类号： E02F9/2083 ,  B60Q1/02 ,  B60Q5/006 ,  B60Q9/008 ,  B60T7/22 ,  B60T8/171 ,  B60T8/18 ,  B60T8/321 ,  B60T8/58 ,  E02F3/283 ,  E02F9/2025 ,  E02F9/24 ,  E02F9/26 ,  G07C5/02 ,  G07C5/085 ,  B60Q2300/05 ,  B60Q2300/112 ,  B60Q2300/132 ,  B60Q2300/14 ,  B60Q2300/45 ,  B60T2250/00 ,  B60T2250/02 ,  B60T2250/04

摘要： Vehicles and methods of operating vehicles are disclosed herein. A vehicle includes a main frame, a work implement, and a control system. The work implement is supported by the main frame and configured to carry a payload in use of the vehicle. The control system is supported by the main frame and configured to control operation of the vehicle. The control system includes a payload measurement system configured to provide payload input indicative of a variable payload carried by the work implement in use of the vehicle and a controller coupled to the payload measurement system.

公开(公告)号：US20230212838A1

公开(公告)日：2023-07-06

申请号：US18001476

申请日：2021-06-14

申请人： ZF Friedrichshafen AG

发明人： Rico GLÖCKNER ,  Raphael ZOHNER ,  Migen BEBETI ,  Stephan SCHINACHER ,  Stefan TRAUB ,  Andreas ROTHMUND ,  Jürgen LEGNER

IPC分类号： E02F9/20 ,  E02F9/26 ,  B60L15/20

CPC分类号： E02F9/207 ,  E02F9/26 ,  E02F9/2083 ,  B60L15/2009 ,  E02F9/2079 ,  B60L2240/66 ,  B60L2240/16 ,  B60L2240/50 ,  B60L2200/40 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/12 ,  B60L2240/427 ,  B60L2250/00 ,  E02F3/283

摘要： A method for operating an electric drivetrain of a working machine is provided wherein the drivetrain comprises a work drive with an electric work motor and a travel drive with an electric travel motor and vehicle wheels, wherein the working machine experiences a speed deceleration from the outside that may result in a braking force acting on the vehicle wheels lower than a driving force acting on the vehicle wheels due to a moment of inertia of the travel motor. The method includes supplying the travel motor with a power in a direction opposite to an operating direction of the travel motor in order to reduce a rotational speed of the travel motor, if it is detected in advance using a situation detection that the braking force acting on the vehicle wheels as a result of the speed deceleration is lower than the driving force acting on the vehicle wheels.

公开(公告)号：US20190249395A1

公开(公告)日：2019-08-15

申请号：US15895387

申请日：2018-02-13

申请人： Deere & Company

发明人： David J. Myers ,  Brian K. Kellogg ,  Aaron R. Kenkel ,  Adam J. Sobkowiak ,  Michael McCabe ,  Bryan J. Huttenlocher ,  Jason L. Mueller

IPC分类号： E02F9/22 ,  B60N2/75 ,  B62D1/10 ,  B62D1/22 ,  B62D33/06 ,  F15B19/00 ,  E02F9/20 ,  E02F9/16 ,  F15B11/22 ,  F15B13/02

CPC分类号： E02F9/225 ,  B60N2/797 ,  B62D1/10 ,  B62D1/22 ,  B62D33/06 ,  E02F3/283 ,  E02F9/16 ,  E02F9/2004 ,  E02F9/22 ,  E02F9/2267 ,  F15B11/22 ,  F15B13/022 ,  F15B19/005

摘要： A work machine having a cab coupled to a frame, a steering system coupled to the frame, a controller configured to selectively articulate the steering system, a joystick assembly positioned in the cab and in communication with the controller, a steering wheel assembly positioned in the cab and configured to selectively articulate the steering system, and a steering wheel sensor coupled to the steering wheel assembly and in communication with the controller to identify movement of the steering wheel assembly. Wherein, the controller does not articulate the steering system responsive to movement of the joystick assembly when the steering wheel sensor identifies movement of the steering wheel.