| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 121 | A Robotic Work Tool Configured for Improved Turning in a Slope, a Robotic Work Tool System, and a Method for Use in the Robot Work Tool | US14767122 | 2013-02-20 | US20150366130A1 | 2015-12-24 | Jonas Bergström; Fredrik Klackensjö; Olle Markusson |
| Robotic work tool (100) configured for improved turning in a slope (S), said robotic work tool comprising a slope detector (190), at least one magnetic field sensor (170), a controller (110), and at least two driving wheels (130″), the robotic work tool (100) being configured to detect a boundary wire (250) and in response thereto determine if the robotic work tool (100) is in a slope (S), and if so, perform a turn by rotating each wheel (130″) at a different speed thereby reducing a risk of the robotic work tool (100) getting stuck. | ||||||
| 122 | Speed and Steering Control of a Hydraulically Driven Tractor | US14560088 | 2014-12-04 | US20150166103A1 | 2015-06-18 | Phil Otto; Don MacGregor; Leonard Bergman |
| A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. Each driven wheels is driven by a hydraulic motor with a continuous adjustment of the motor displacement, with the motor being driven by a pump also having continuous displacement. The motor displacement is controlled by an electronic controller in response to stroking of the speed control lever to manage the displacement to provide required drive torques at different points in the stroke. There is provided an automatic steering system having a guidance controller arranged to receive GPS position information which controls the steering by differentially adjusting the displacement of the motors so that the automatic steering is independent of the manual steering which controls the pumps. | ||||||
| 123 | Automatic torque compensating drive system | US13666654 | 2012-11-01 | US08800694B1 | 2014-08-12 | Nathan W. Bonny; K. Mike McCoy |
| An automatic torque compensating drive system for a hydrostatic transmission, having a torque compensating control mechanism adjusting the swash plate of the hydraulic motor, the swash plate being spring biased to a low-torque, high-speed position and rotatable through a range of positions to a high-torque, low-speed position in response to increasing hydraulic system pressure. When used with a pair of transmissions, a linkage may join the control mechanisms of each transmission to synchronize their torque adjustments. | ||||||
| 124 | Power train, vehicle and methods | US12445333 | 2007-10-12 | US08573348B2 | 2013-11-05 | Codrin-Gruie Cantemir; Gabriel G. Ursescu; Giorgio Rizzoni |
| A powertrain is adapted to drive ground-engaging elements disposed along longitudinally-opposing sides of a vehicle. The powertrain includes at least one engine, a first electric machine, a second electric machine, a third electric machine, a first differential mechanism and a second differential mechanism. The engine and first electric machine are operatively connected to the first and second differential mechanisms. The second electric machine is operatively connected to the first differential mechanism and the third electric machine is operatively connected to the second differential mechanism. The first and second differential mechanisms are each operatively connected to drivably engage one or more ground-engaging elements disposed on a different one of the longitudinally-opposing sides of the associated vehicle. A vehicle including such a powertrain as well as methods of using the same are also included. | ||||||
| 125 | Control device for the active steering of a vehicle | US12453883 | 2009-05-26 | US08177020B2 | 2012-05-15 | Jean-Marie Bourdet; Guy Le Trouher; Olivier Pape |
| A control device for the active steering of a vehicle comprising a driving differential that is positioned between a steering wheel and steering control means, said differential which furthermore receives at a first input a counter-steering command supplied by a turn correction motor, wherein said steering wheel is linked to a second input of said differential by non-return means preventing any force feedback from said differential to said steering wheel. | ||||||
| 126 | Power unit | US12153579 | 2008-05-21 | US08177007B2 | 2012-05-15 | Noriyuki Abe; Yasuo Kitami; Shigemitsu Akutsu |
| A power unit which makes it possible to attain the reduction of the size and manufacturing costs thereof, and improve turnability. A power unit drives left and right rear wheels. A first rotating machine and a second rotating machine are configured to be capable of inputting and outputting energy. A first and a second planetary gear units are disposed between the first and second rotating machines and the left and right rear wheels, respectively, for transmitting energy between the first rotating machine and the left and right rear wheels and between the second rotating machine and the same. The first rotating machine, the left rear wheel, the right rear wheel, and the second rotating machine are in a collinear relationship in rotational speed, and are in a line in this order in a collinear chart representing the collinear relationship. | ||||||
| 127 | Traveling device for crawler type heavy equipment | US12154049 | 2008-05-20 | US08146355B2 | 2012-04-03 | Jae Hoon Lee |
| A traveling device for crawler type heavy equipment is provided, which can improve manipulability by preventing an abrupt decrease/increase of a traveling speed of the equipment when a combined operation, in which a left/right traveling device and a working device are simultaneously driven, is performed. The traveling device for crawler type heavy equipment includes a variable orifice shifted to intercept the supply of the hydraulic fluid toward the traveling device in response to the signal pressure in the combined working mode if a load pressure of the working device is relatively higher than that of the traveling device. | ||||||
| 128 | Steering system and method of steering a machine | US13242886 | 2011-09-23 | US20120006603A1 | 2012-01-12 | Norval P. Thomson; Steven A. Daniel; John V. Mount; Christopher E. Bright |
| A steering system for steering a machine having opposing first and second sides with first and second pairs of rotatably mounted rear wheels disposed along the respective sides and at least one rotatably mounted, spaced front wheel. The system includes at least one first drive unit and at least one second drive unit for rotating the rear wheels of the respective pairs, and a steering input device that provides a signal to a controller that produces drive unit request signals to control the drive units to rotate the associated rear wheels along one side at rotational speeds greater than those along the other side to facilitate turning. | ||||||
| 129 | Hydraulic transaxle | US12101724 | 2008-04-11 | US07980351B2 | 2011-07-19 | Koji Iwaki; Norihiro Ishii; Shigenori Sakikawa; Katsumoto Mizukawa; Manabu Kawakami; Kentaro Nagata |
| A transaxle (1), having a hydraulic drive unit (20) and a pair of left and right wheel support units (2L and 2R), is suspended from a vehicle frame so as to be turnable around a turning-center axis oriented in a fore-and-aft direction of a vehicle. The hydraulic drive unit (20) comprises: a pair of left and right hydraulic motors (23L and 23R) having respective left and right horizontal motor shafts (23b); a center section (22) formed therein with an oil passage for hydraulically connecting at least one of the hydraulic motors to a hydraulic pump, the center section having motor attachment surfaces onto which the hydraulic motors are attached; and a pair of left and right axle casings (2L and 2R) containing the respective hydraulic motors and supporting the respective motor shafts. The pair of wheel support units (30L and 30R), supporting respective left and right travel wheels (1L and 1R), are joined to respective outer ends of the left and right axle casings, and drivingly connected to the respective motor shafts (23b). | ||||||
| 130 | Propulsion and steering system for a road milling machine | US12442102 | 2007-09-28 | US07942604B2 | 2011-05-17 | Paul E. Willis; Justin Zupanc |
| A propulsion system is for a road milling machine with a rotatable cutter drum (3). The system includes four crawler assemblies (12) movably coupled with the mainframe so as to define front and rear, and left and right, pairs of crawler assemblies. Four steering actuators (14) are each coupled with a separate crawler assembly and each angularly displaces the crawler about a vertical axis (12a). A first pump (16A) is fluidly coupled with the left pair of crawlers and a second pump (16B) is fluidly coupled with the right pair of crawlers. A control (20) is configured to selectively operate the four actuators in a plurality of different steering modes, one steering mode being a circle steer mode, and to operate the two pumps such that one of the left and right pairs of crawlers are drivable by the first pump in one direction while the other pair of crawlers are drivable in an opposing direction. | ||||||
| 131 | Hydraulic traveling vehicle and control method for hydraulic traveling vehicle | US12282626 | 2007-05-07 | US07931099B2 | 2011-04-26 | Takeo Yamada; Jun Koizumi |
| With a hydraulic traveling vehicle, a controller is configured and arranged to switch a merging/diverging valve to a merging state when a working equipment is driven with the merging/diverging valve being in a diverging state and with turning of the hydraulic traveling vehicle being carried out, and when a required flow rate parameter for pressurized oil of the working equipment is greater than or equal to a prescribed threshold value, and to maintain the merging/diverging valve in the diverging state when the required flow rate parameter is less than the prescribed threshold value. | ||||||
| 132 | Hybrid vehicle | US12438195 | 2007-08-28 | US07886852B2 | 2011-02-15 | Pierre Bernard; Guy Gaudreau; Marc-Andre Lucier |
| The hybrid vehicle kit comprises a vehicle body capable of being interchangeably coupled to either one of a wheel kit thus forming a hybrid vehicle in a wheel mode, the wheel kit having a number of ground-engaging wheels; and a track kit, thus forming the hybrid vehicle in a track mode, the track kit having a pair of ground-engaging tracks carried by track wheels. The vehicle has a pair of powered driving hydraulic pumps and a number of wheel drives powered by a corresponding one of the driving hydraulic pumps. In the wheel mode the ground-engaging wheels are operatively mounted to corresponding wheel drives and an electronic circuit calculates hydraulic rate data on the basis of speed data to control the first and second driving hydraulic pumps so that they will administer a hydraulic rate to the wheel drives which is representative of the hydraulic rate data to control the rotational speed of the ground-engaging wheels which will propel the hybrid vehicle. In the track mode at least some of the track wheels are operatively mounted to corresponding wheel drives and the electronic circuit calculates hydraulic rate data on the basis of the speed data and of the steering data to control the first and second driving hydraulic pumps so that they will administer a respective hydraulic rate to the wheel drives which is representative of the hydraulic rate data to control the rotational speed of the at least some of the track wheels that are operatively mounted to corresponding wheel drives, to both propel and steer the hybrid vehicle. | ||||||
| 133 | Hands-free powered mobility device | US12146944 | 2008-06-26 | US07748490B2 | 2010-07-06 | M. Jeffrey Hornick; Merry Lynn Morris; Scott Bayus; Erin Smalley; Tolga Akkoc; Konstantin Popov; Peter Schrock |
| An electrically operable wheelchair having a seat, a base with a pair of motors respectively coupled with the main support wheels, a position detection assembly, and a controller coupled with the position detection assembly and the motors for controlling wheelchair operation in order to effect desired wheelchair movements. The hands-free input device of the invention, which includes the position detection assembly and a position detection device, provides input signals representative of desired wheelchair movements to the controller. The position detection device detects the position of the seat. Movement of the seat, rather than a joystick, creates the voltage signals which are then transmitted to the wheelchair controller. | ||||||
| 134 | Hydrostatic Transaxle | US12714710 | 2010-03-01 | US20100147616A1 | 2010-06-17 | Koji IWAKI; Norihiro ISHII; Fumitoshi ISHINO |
| A hydrostatic transaxle comprises: a motor casing; at least one hydraulic motor disposed in the motor casing; at least one output shaft disposed in the motor casing so as to be driven by the at least one hydraulic motor; and a pair of steerable wheel support units attached onto respective opposite ends of the motor casing. Each of the steerable wheel support units includes an axle, a steerable casing, a wheel, and a steering arm. In each of the steerable wheel support units, the axle is drivingly connected to the at least one output shaft, the steerable casing is substantially horizontally rotatable relative to the motor casing, the wheel is attached on an outer end of the axle outside of the steerable casing, and the steering arm is rotatably integrally provided on the steerable casing. The hydrostatic transaxle further comprises a pair of connection rods for connecting the steering arms of the steerable wheel support units to a common rotary member of a steering operation mechanism spaced forward or rearward from the hydrostatic transaxle. | ||||||
| 135 | Tractor with automatic steering arrangement | US12056372 | 2008-03-27 | US07721830B2 | 2010-05-25 | James Thomas Dunn; Philip J. Otto; Geoffrey U. Snider |
| A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. It can be driven cab forward in a working mode with a header on the forward end. It is rotated to engine forward in the transport position for more stable higher speed travel. The driven wheels are driven by hydraulic motors each having their own drive pump the output of which is controlled by a cam plate. There is provided an automatic steering system having a guidance controller arranged to receive GPS position information and feed back signals and to generate output for controlling a hydraulic control valve for controlling flow in hydraulic fluid for a double acting hydraulic control cylinder arranged to actuate pivotal movement of the steering link member independently of the steering shaft. | ||||||
| 136 | ADAPTABLE VEHICLE HAVING INTERCHANGEABLE TRACKS AND WHEELS | US12438152 | 2007-08-28 | US20100006353A1 | 2010-01-14 | Pierre Bernard; Guy Gaudreau |
| The hybrid vehicle is mounted from a kit which includes a vehicle body that has a chassis, a first actuator assembly carried by the chassis and a motor carried by the chassis; a wheel kit including a second actuator assembly and a number of ground-engaging wheels; and a track kit that has track guide wheels, track driving wheels and a pair of ground-engaging tracks. The vehicle body can be interchangeably coupled to either one of the wheel kit thus defining a wheel mode hybrid vehicle and the track kit thus defining a track mode hybrid vehicle. In the wheel mode, the second actuator assembly is removably carried by the chassis, the ground-engaging wheels are operatively and removably coupled to the first and second actuator assemblies and the motor powers the first and second actuator assemblies. In the track mode, the track guide wheels are removably carried by the chassis, the track driving wheels are operatively and removably coupled to the first actuator assembly, the tracks are operatively installed on respective track guide and driving wheels and the motor powers the first actuator assembly. | ||||||
| 137 | Control device for the active steering of a vehicle | US12453883 | 2009-05-26 | US20090288892A1 | 2009-11-26 | Jean-Marie Bourdet; Guy Le Trouher; Olivier Pape |
| A control device for the active steering of a vehicle comprising a driving differential that is positioned between a steering wheel and steering control means, said differential which furthermore receives at a first input a counter-steering command supplied by a turn correction motor, wherein said steering wheel is linked to a second input of said differential by non-return means preventing any force feedback from said differential to said steering wheel. | ||||||
| 138 | TRACTOR WITH AUTOMATIC STEERING ARRANGEMENT | US12056372 | 2008-03-27 | US20090242219A1 | 2009-10-01 | James Thomas Dunn; Philip J. Otto; Geoffrey U. Snider |
| A tractor has hydraulically driven wheels at a cab end and castor wheels at an engine end. It can be driven cab forward in a working mode with a header on the forward end. It is rotated to engine forward in the transport position for more stable higher speed travel. The driven wheels are driven by hydraulic motors each having their own drive pump the output of which is controlled by a cam plate. There is provided an automatic steering system having a guidance controller arranged to receive GPS position information and feed back signals and to generate output for controlling a hydraulic control valve for controlling flow in hydraulic fluid for a double acting hydraulic control cylinder arranged to actuate pivotal movement of the steering link member independently of the steering shaft. | ||||||
| 139 | Tracked vehicle | US11702596 | 2007-02-06 | US07575075B2 | 2009-08-18 | Ryan Fairhead |
| The present invention is an improved personal tracked vehicle consisting of a platform pivotally mounted on top of a housing, the platform having a right and left side and a central axis. The platform is pivotally movable between a first position wherein the right side of the platform is below the left side of the platform and a second position wherein the left side of the platform is below the right side of the platform. The platform has a forward portion, a rearward portion and middle portion between the two, the middle portion being arched upwardly. The vehicle further includes a pair of parallel right and left tracks mounted to the housing below the platform, the right track being coupled to a right track transmission and the left track being coupled to a left track transmission, the right and left track transmissions both being coupled to a motor for driving the transmissions. The right and left track transmissions are operatively coupled to the platform such that when the platform is pivoted towards its first position, the left track is driven faster and the right track is driven slower, and when the platform is pivoted towards its second position, the right track is driven faster and the left track is driven slower, the platform being biased towards a central position wherein the left and right drives operate at the same speed. The motor of the vehicle is mounted to the housing below the middle portion of the platform and between the tracks. | ||||||
| 140 | HYDRAULIC TRAVELING VEHICLE AND CONTROL METHOD FOR HYDRAULIC TRAVELING VEHICLE | US12282626 | 2007-05-07 | US20090057040A1 | 2009-03-05 | Takeo Yamada; Jun Koizumi |
| With a hydraulic traveling vehicle, a controller is configured and arranged to switch a merging/diverging valve to a merging state when a working equipment is driven with the merging/diverging valve being in a diverging state and with turning of the hydraulic traveling vehicle being carried out, and when a required flow rate parameter for pressurized oil of the working equipment is greater than or equal to a prescribed threshold value, and to maintain the merging/diverging valve in the diverging state when the required flow rate parameter is less than the prescribed threshold value. | ||||||
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