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公开(公告)号：US11598070B2
公开(公告)日：2023-03-07
申请号：US15957203
申请日：2018-04-19
发明人： Craig Roske
摘要： Disclosed are power systems, and power machines employing the power systems, having dual in-line pumps configured to supply hydraulic fluid to respective left and right side travel motors of the power machine. In some exemplary embodiments, pump pintle arm controls and a single centering mechanism for the pintle arm controls are provided. The single centering mechanism is configured to center the pintle arms for each of the two pumps. Also in some exemplary embodiments, a mechanical control linkage configuration allows the separate pump pintle arm controls to be positioned on a side of the pump substantially one behind the other. This allows hydraulic connections to the pumps to be placed on top of the pump assembly, improving the routing of hydraulic hoses in the power machine.
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公开(公告)号：US20230042398A1
公开(公告)日：2023-02-09
申请号：US17792773
申请日：2021-01-11
申请人： QinetiQ Limited
摘要： A drive unit for a skid steered vehicle includes a controlled differential positioned between two shafts. The end of each shaft forms an output of the drive unit connected directly to the differential outputs via the shafts. A steer motor is in driveable communication with the differential, and an electric propulsion motor is in driveable communication with the shaft outputs. A gear reduction unit, and optional gear change unit, is positioned between the differential and the electric propulsion motor. The electric propulsion motor, the gear reduction unit and optional gear change unit are connected in a parallel connection with an output of the differential to the shaft outputs. The optional gear change unit includes an epicyclic gear reduction unit having an input and an output which provides drive input from the gear change unit to the shaft. A gear change set has a master gear that receives drive output from the electric propulsion motor, and slave gears which are driven by the master gear via one or more gear chains. A dog clutch slideably engages the input of the gear reduction unit and selectively engages with the master gear or slave gears so that the selected position of the dog clutch determines which gear is engaged.
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公开(公告)号：US11498205B2
公开(公告)日：2022-11-15
申请号：US16317244
申请日：2017-07-11
申请人： HUSQVARNA AB
发明人： Mats Svensson
摘要： A robotic vehicle (10) comprising a first chassis platform (200) comprising a first wheel assembly (202) and a second chassis platform (210) comprising a second wheel assembly (212). The first and second chassis platforms (200, 210) is arranged to be spaced apart from each other. The robotic vehicle (10) further comprises a linkage (220) operably coupled to the first chassis platform (200) and the second chassis platform (210). The linkage (220) being coupled so as to be fixed relative to the first chassis platform (200) and so that the second chassis platform (210) is rotatable relative to the first chassis platform (200), wherein the second chassis platform (210) comprises a turning axis (400). Said robotic vehicle (10) further comprising an electric brake (262) disposed proximate to a turning shaft (422) of the linkage (220). The electric brake (262) being selectively applied by processing circuitry (110) to resist turning of the second chassis platform (210) about the turning axis (400) and being selectively released to allow the second chassis platform (210) to turn about the turning axis (400).
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公开(公告)号：US11427203B1
公开(公告)日：2022-08-30
申请号：US17176060
申请日：2021-02-15
发明人： Alyn G. Brown , K. Mike McCoy , Gregory Barton Moebs , Gregory E. Arends , Damon J. Hoyda , Jesse L. Probst , Joseph Hamilton , John Tyler Hibbard
IPC分类号： G06F13/00 , G06F13/40 , G06F13/38 , B60W30/18 , B60W50/14 , B60R21/0136 , B60W10/08 , B60W10/06 , B60W20/50 , B60W30/08 , A01D69/03 , H04L12/40 , B60K1/02 , B60R21/13 , B60R16/023 , A01D69/02 , A01D34/82 , B62D11/04 , A01D34/66 , H04W4/80 , A01D101/00 , B60N2/00 , B60T17/22 , B62D1/12 , B60R21/0132 , B60Q9/00 , B60K28/14 , B60L50/60 , B60L15/20 , B60L1/00
摘要： A drive and control system for a lawn tractor includes a CAN-Bus network, a plurality of controllers, a pair of electric transaxles controlled by the plurality of controllers, and one or more steering and drive input devices coupled to respective sensor(s) for sensing user steering and drive inputs. The plurality of controllers communicate with one or more vehicle sensors via the CAN-Bus network. The plurality of controllers receive the user's steering and drive inputs and posts on the CAN-Bus network and generate drive signals to obtain the desired speed and direction of motion of the lawn tractor.
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公开(公告)号：US20220177032A1
公开(公告)日：2022-06-09
申请号：US17437328
申请日：2020-04-27
摘要： The present application discloses a differential drive device applied to an AGV, relating to the field of wheeled drivers, and being able to effectively reduce the total height of the differential drive device. The differential drive device includes a differential drive unit (2), a top plate (1) and an outer cover (3). The top plate (1) is installed on a top end of the outer cover (3). The differential drive unit (2) is located in the outer cover (3) at a lower side of the top plate (1). The top plate (1) is supported on the differential drive unit (2). An inner side wall of the outer cover (3) is circular-shaped. The present application applies to apparatuses with transportation functions.
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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
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.
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公开(公告)号：US11175665B2
公开(公告)日：2021-11-16
申请号：US16248823
申请日：2019-01-16
发明人： Christian Noess
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.
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公开(公告)号：US11065678B2
公开(公告)日：2021-07-20
申请号：US16425368
申请日：2019-05-29
申请人： Wagstaff, Inc.
IPC分类号： B22D11/049 , B62D11/04 , B22D11/05 , B22D11/055 , B22D11/124 , B22D11/16 , B22D11/04 , B22D11/00
摘要： Provided herein is a system, apparatus, and method for continuous casting of metal, and more particularly, to a mechanism for controlling the shape of a direct chill casting mold to dynamically control a profile of an ingot cast from the mold during the casting process. Embodiments may provide an apparatus for casting material including: first and second opposing side walls; first and second end walls extending between the first and second side walls, where the first and second opposing side walls and the first and second opposing end walls form a generally rectangular shaped mold cavity. At least one of the first and second opposing side walls may include two or more contact regions, where each of the two or more contact regions may be configured to be displaced relative to a straight line along the side wall.
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公开(公告)号：US20210179170A1
公开(公告)日：2021-06-17
申请号：US16715915
申请日：2019-12-16
申请人： Caterpillar Inc.
IPC分类号： B62D11/04 , B60K7/00 , F16H1/36 , F16H57/10 , E02F3/76 , E02F3/84 , E02F9/02 , E02F9/08 , B62D21/18 , B62D55/06
摘要： A motor drive assembly for a dual path electric powertrain of a machine is disclosed. The motor drive assembly may include a final drive assembly to engage a ground engaging element of the machine. The motor drive assembly may include an electric motor to provide torque to the final drive assembly. The motor drive assembly may include a planetary gear assembly mechanically coupled to a rotor shaft of the electric motor and an axle of the final drive assembly. The motor drive assembly may include a brake assembly to engage a component of the planetary gear assembly to retard the rotor shaft and the axle.
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公开(公告)号：US11001299B1
公开(公告)日：2021-05-11
申请号：US16806289
申请日：2020-03-02
发明人： Brian D. Laymon , K. Mike McCoy
IPC分类号： B62D11/04 , A01D34/64 , B60K6/40 , B60K6/46 , B60K17/12 , A01D69/02 , B62D11/00 , B60L50/10 , B62D49/06 , A01D101/00
摘要： A zero turn vehicle is disclosed, having an operator platform located adjacent to the rear of the frame. An upright riser is disposed on the frame. The vehicle uses first and second electric drive transmissions to drive the output wheels. An electrical bus or controllers may be mounted on a panel of the upright riser to assist in providing a compact design. A pair of drive levers is mounted on the upright riser for controlling the output of the vehicle.
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