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公开(公告)号：US20190135339A1
公开(公告)日：2019-05-09
申请号：US16224779
申请日：2018-12-18
申请人： MTD PRODUCTS INC
IPC分类号： B62D9/00 , B62D7/15 , B62D11/00 , B62D11/04 , B62D55/065
CPC分类号： B62D9/002 , B62D7/1509 , B62D11/003 , B62D11/04 , B62D21/18 , B62D21/183 , B62D55/065 , B62D63/04
摘要： A utility vehicle includes a frame, a power source, and a plurality of steerable structures. Ground engaging members are connected to the steerable structures. An operator seating area includes a steering control and a speed control. Controllers receive input from the steering control and the speed control. Motors drive the ground engaging members at different speeds and in different directions. A controller integrates a steering input with a speed input to effect rotation of the steerable structures and effect rotation of the ground engaging members. The steering control, speed control, controllers, steerable structures, and motors are configured to work together to control the rotational speed of all of the ground engaging members based upon a steering angle input and the lateral side the ground engaging member is connected to. Other examples include braking mechanisms, adjustable track width, and a sealed tubular frame.
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32.发明授权公开(公告)号：US10279837B2
公开(公告)日：2019-05-07
申请号：US15760745
申请日：2016-09-16
申请人： NSK LTD.
发明人： Ryo Minaki , Hideki Sawada , Takayoshi Sugawara
IPC分类号： A01B69/00 , B62D6/00 , B62D11/00 , B62D12/00 , B63G8/20 , B63H25/04 , G05D1/00 , G06F7/00 , G06F17/00 , G06F19/00 , B62D6/10 , B62D5/04 , B62D15/02 , G01B21/22 , G06N99/00
摘要： A vehicle steering angle detecting apparatus and an electric power steering apparatus equipped therewith. The apparatus connects a motor, which assist-controls a steering system of a vehicle, to the steering shaft via a reduction mechanism, and includes a first angle sensor which detects the steering shaft angle of the steering shaft and the second angle sensor which detects the motor shaft angle of the motor, including: a function that updates a static characteristic map and a dynamic characteristic map by iteratively learning a static characteristic and a dynamic characteristic of the nonlinear elements including the reduction mechanism, and mutually estimates the steering shaft angle and the motor shaft angle by using the static characteristic map and the dynamic characteristic map.
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公开(公告)号：US20190119884A1
公开(公告)日：2019-04-25
申请号：US16228561
申请日：2018-12-20
申请人： KUBOTA CORPORATION
发明人： Hiroshi HORII
摘要： A working machine includes a hydraulic pump, a first traveling device to be driven by a first traveling hydraulic actuator, a second traveling device to be driven by a second traveling hydraulic actuator, a first output tube to connect a first output port of the hydraulic pump to the first traveling hydraulic actuator, a second output tube to connect a second output port of the hydraulic pump to the second traveling hydraulic actuator, a first operation device to operate the first traveling device, a second operation device to operate the second traveling device and a correction mechanism to equalize a driving force of the first traveling hydraulic actuator and another driving force of the second traveling hydraulic actuator when the first operation device and the second operation device are operated each at same operation extents to perform a straight-traveling operation.
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公开(公告)号：US20190106148A1
公开(公告)日：2019-04-11
申请号：US16211445
申请日：2018-12-06
申请人： Deere & Company
摘要： A steering system is described for a vehicle having steerable wheels. A hydraulic charge pressure circuit may be configured to provide charge pressure to one or more hydraulic components of the vehicle and a hydraulic drive pressure circuit may be configured to provide working pressure to one or more other hydraulic components of the vehicle. Hydraulic machines may rotate front wheels in order to drive the vehicle, and a front valve assembly may control steering of the front wheels by controlling the hydraulic machines. The hydraulic machines may be driven to rotate the front wheels by the working pressure from the hydraulic drive pressure circuit, and the front valve assembly may control the front hydraulic machines to steer the agricultural vehicle by controlling flow of hydraulic fluid from the hydraulic charge pressure circuit through the front valve assembly.
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公开(公告)号：US10245520B2
公开(公告)日：2019-04-02
申请号：US15728984
申请日：2017-10-10
申请人： RADIO FLYER INC.
IPC分类号： B62D1/04 , B60L15/00 , B62D11/00 , A63H17/38 , A63H29/22 , B60K28/00 , B60L15/20 , B62D9/00 , G05D1/00
摘要： A ride-on vehicle is provided that has drive and spin functionalities. The ride-on vehicle comprises a first motor for a first drive wheel, and a second motor for a second drive wheel. The vehicle has a steering wheel having a go selector and a spin selector. A sensor obtains an output of the angular rotation location of the steering wheel. A controller is electrically connected to the first and second motors, the go selector, the spin selector, and the steering wheel sensor, wherein engaging the go selector and turning the steering wheel causes the vehicle to move forward, left or right, depending on the angular location of the steering wheel, and wherein engaging the spin selector and turning the steering wheel causes the vehicle to spin left or spin right, depending on the angular location of the steering wheel. The vehicle may also be controlled remotely by a remote control.
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公开(公告)号：US20190092387A1
公开(公告)日：2019-03-28
申请号：US16172032
申请日：2018-10-26
发明人： Jiawei Ying , Keping Xiao
摘要： A human-machine interaction somatosensory vehicle is provided. The human-machine interaction somatosensory vehicle may include a vehicle body and two wheels mounted on the vehicle body. The two wheels may rotate around the vehicle body in a radial direction. The vehicle body may include a support frame, two pedal devices mounted on the support frame, a controller, and a driving device configured to drive the two wheels. The support frame may be an integral structure rotatably connected to the two pedal devices. The two pedal devices each may include a pedal foot board and a first position sensor. The first position sensor may be mounted between the pedal foot board and the support frame, and configured to detect stress information of the pedal device. The controller may be configured to control the driving device to drive the two wheels to move or turn based on the stress information of the pedal devices.
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公开(公告)号：US20190031237A1
公开(公告)日：2019-01-31
申请号：US16149887
申请日：2018-10-02
发明人： Liang Wang , Linli Zhang
CPC分类号： B62D11/003 , B62D1/28 , B62D11/04 , E02F9/2045 , E02F9/2054 , G05D1/027 , G05D1/0278
摘要： A system configured to be mounted to a vehicle including a skid-based steering system. The system including a control unit for determining course correction to the vehicle during operation based on a navigation path received from a remote device and data associated with the movement of the vehicle collected by the system.
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公开(公告)号：US20190023306A1
公开(公告)日：2019-01-24
申请号：US16047752
申请日：2018-07-27
CPC分类号： B62D5/046 , B62D3/02 , B62D5/0418 , B62D6/008 , B62D7/12 , B62D11/003 , B62D11/04
摘要： An electronic drive control system for a vehicle having a right and left drive wheels and a pair of actuators engaged to respective control arms of the associated variable drive units. A pair of speed sensors are in electrical communication with the respective variable drive units and a controller. The controller receives signals from the speed sensors and determines at least one operational output of each variable drive unit based on the received signals, calculates adjustments to at least one of the actuators and adjusts at least one of the actuators to move the respective control arm of the drive unit to effectuate the desired operational output of the variable drive units.
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公开(公告)号：US10183694B1
公开(公告)日：2019-01-22
申请号：US15640329
申请日：2017-06-30
发明人： Raymond Hauser , Alyn G. Brown
摘要： A vehicle drive and control system includes an input shaft driven by a prime mover and extending into a housing to drive a generator. An electric motor powered by the generator drives an output axle, which may be a single axle extending out one side of the housing, or a through shaft extending through the electric motor and out both sides of the housing. The input shaft may be parallel to the axle. A generator controller is configured to back-drive the generator when certain predetermined conditions are met. A motor controller may control an output of the motor based on input received via an operator control device, and the motor controller is configured to operate the motor as a generator under certain operating conditions. The transaxle includes a common housing in which the power generator, the motor, and controllers for the generator and electric motor are disposed.
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公开(公告)号：US10150502B2
公开(公告)日：2018-12-11
申请号：US14855785
申请日：2015-09-16
申请人： THE TORO COMPANY
IPC分类号： B62D11/00
摘要： A linkage adjustment system adapted to adjust a linkage, and a vehicle incorporating the same. In one embodiment, the linkage adjustment system adjusts a linkage operatively connecting an input (e.g., operator control lever of a lawn mower) to an output (e.g., drive system of a first drive wheel associated with a first (e.g., left) side of the mower). An adjustment device may adjust the linkage so that the first drive wheel rotates at the same speed as a second drive wheel (e.g., on the right side of the mower) when the control levers associated with both drive wheels are in a maximum forward position. A range setting arm of the system may adjust the total output of the first drive wheel (total forward and reverse output) to match the total output of the second drive wheel.
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