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51. 发明授权

US3700356A Fluid system 失效
标题翻译：流体系统
公开(公告)号：US3700356A
公开(公告)日：1972-10-24
申请号：US3700356D
申请日：1970-08-26
申请人： PHILIP A KUBIK
发明人： KUBIK PHILIP A
IPC分类号： F04B49/00 , F15B7/00 , F16H61/42 , F16H61/438 , F04B1/26
CPC分类号： F16H61/42 , F04B49/002 , F15B7/006 , F16H61/438
摘要： A fluid system having a variable displacement fluid pump connected in a closed loop circuit to a fluid cylinder having a piston and a pair of connecting rods extending from opposite sides of the piston externally of the fluid cylinder. A directional control valve disposed in the closed circuit between the inlet and outlet of the fluid pump is adapted to selectively direct fluid to one side of the piston within the fluid cylinder, while exhausting fluid from the other side of the piston, to selectively move the piston within the fluid cylinder. The rate of movement of the piston in either direction of movement is controlled by the amount of fluid displaced by the fluid pump. A second directional control valve is adapted to direct fluid from a second source of fluid to a pressure responsive displacement control mechanism to selectively vary the displacement of the fluid pump between a maximum and a minimum flow position. The rate of fluid flow to the pressure responsive displacement control mechanism is selectively varied to control the rate of displacement of the fluid pump and to thereby selectively control the rate of movement of the cylinder piston, while the maximum flow position may be varied between defined limits by an electrically operated remote control.
摘要翻译：一种具有可变排量流体泵的流体系统，该可变排量流体泵连接在具有活塞的流体缸的闭环回路中，以及从流体缸的外部的活塞的相对侧延伸的一对连接杆。设置在流体泵的入口和出口之间的闭合回路中的方向控制阀适于选择性地将流体引导到流体缸内的活塞的一侧，同时从活塞的另一侧排出流体，以选择性地移动活塞在液压缸内。活塞在两个运动方向的移动速度由流体泵移动的流体的量来控制。

52. 发明申请

US20180231124A1 WORK VEHICLE 审中-公开
公开(公告)号：US20180231124A1
公开(公告)日：2018-08-16
申请号：US15751112
申请日：2016-08-05
申请人： Yanmar Co., Ltd.
发明人： Taihei DAIYAKUJI , Hitoshi NOMURA
IPC分类号： F16H61/438 , F16H61/425 , F16H61/435 , F16H61/439
CPC分类号： F16H61/438 , B60Y2200/221 , F16H47/02 , F16H61/425 , F16H61/435 , F16H61/439 , F16H2061/005 , F16H2312/20
摘要： A work vehicle such as a tractor including an engine, a battery, a hydraulic continuously variable transmission (120), and an electric cylinder (143), and a power transmission mechanism (70). The hydraulic continuously variable transmission (120) changes an output of the engine, and changes an angle of a movable swash plate to change a gear ratio thereof. The electric cylinder (143) is driven by electric power supplied from the battery at least while the engine is stopped. With the power generated in the electric cylinder (143) and transmitted, the power transmission mechanism (70) changes the angle of the movable swash plate of the hydraulic continuously variable transmission (120).

53. 发明申请

US20180051799A1 Hydraulic Mechanical Transmission with Torque Boost 审中-公开
公开(公告)号：US20180051799A1
公开(公告)日：2018-02-22
申请号：US15680898
申请日：2017-08-18
申请人： Eaton Corporation
发明人： QingHui Yuan
IPC分类号： F16H61/00 , F16H61/438 , F16H47/07 , F16H39/10
CPC分类号： F16H61/438 , F16H39/10 , F16H39/12 , F16H47/02 , F16H47/04 , F16H47/07 , F16H61/0009 , F16H61/0025 , F16H2037/0866 , F16H2039/105 , F16H2047/045
摘要： A hydraulic mechanical transmission includes a first hydraulic unit having a first shaft and a second hydraulic unit having a second shaft. The second hydraulic unit is connected in hydraulic fluid communication with the first hydraulic unit by high and low pressure lines. A valve having a variable orifice is positioned along the high and low pressure lines, and at least one of the first and second hydraulic units has a variable displacement. A mechanical torque transfer arrangement transfers torque between the first shaft of the first hydraulic unit and a rotatable component of the second hydraulic unit. In use, one of the first and second hydraulic units operates as a hydraulic pump and the other of the first and second hydraulic units operates as a hydraulic motor.

54. 发明申请

US20170167513A1 ELECTRONIC BEGIN OF REGULATION CONTROL FOR A HYDRAULIC MOTOR 审中-公开
公开(公告)号：US20170167513A1
公开(公告)日：2017-06-15
申请号：US14969342
申请日：2015-12-15
申请人： Deere & Company
发明人： CHRIS MCDONALD , Mikael C. Nielsen , Matthew J. Ramler , Bryon P. Neumann
IPC分类号： F15B11/17 , F16H61/4035 , F16H61/42 , F16H61/438 , F15B11/16 , F16H61/44
CPC分类号： F15B11/17 , E02F9/20 , E02F9/2253 , E02F9/2267 , E02F9/2289 , E02F9/2292 , E02F9/2296 , F15B11/16 , F15B2211/20561 , F15B2211/20576 , F15B2211/27 , F15B2211/351 , F15B2211/6306 , F15B2211/6656 , F15B2211/71 , F15B2211/78 , F16H61/4008 , F16H61/4035 , F16H61/42 , F16H61/438 , F16H61/44 , F16H61/46 , F16H2059/663 , F16H2059/6861
摘要： An electronic begin of regulation (EBOR) control system and method is disclosed for a hydraulic motor of a machine having an engine for producing power and a track system for moving. The EBOR system includes a flow source, variable displacement motor, pressure sensor and control unit. The operator sets a pressure setpoint. The flow source generates flow in a loop with the motor. The pressure sensor senses loop working pressure. The control unit adjusts motor displacement based on comparisons between the pressure setpoint and sensed loop working pressure. The flow source can be bidirectional, and different pressure sensors can be used depending on the direction. The pressure setpoint can be varied during operation, and the control unit can adjust the displacement of the motor based on comparisons between the latest pressure setpoint and the loop working pressure sensed by the appropriate pressure sensor.

55. 发明授权

US09656840B2 Work vehicle and control method for work vehicle 有权
公开(公告)号：US09656840B2
公开(公告)日：2017-05-23
申请号：US14422877
申请日：2014-10-08
申请人： Komatsu Ltd.
发明人： Taishi Oiwa , Shinji Kaneko
IPC分类号： G06F7/70 , F16D39/00 , B60K28/16 , B66F9/075 , F16H61/438 , F16H61/431 , B66F9/07
CPC分类号： B66F9/07572 , B60Y2200/15 , B66F9/07 , F16H61/431 , F16H61/438
摘要： A work vehicle obtains determination information from information upon detecting inverting operation, the information upon detecting inverting operation indicating a traveling state of the work vehicle when an advancing direction detection device detects an inverting operation of an advancing direction switching device for inverting an advancing direction of the work vehicle while the work vehicle travels; decreases a first traveling instruction for allowing the work vehicle to travel in the advancing direction of the work vehicle upon the detection of the inverting operation, and increases a second traveling instruction for allowing the work vehicle to travel in the direction opposite to the advancing direction of the work vehicle upon the detection of the inverting operation, after detecting the inverting operation; and sets the first traveling instruction to 0 when speed information indicating a traveling state of the work vehicle becomes the determination information.

56. 发明授权

US09091040B2 Hydraulic circuit control 有权
标题翻译：液压回路控制
公开(公告)号：US09091040B2
公开(公告)日：2015-07-28
申请号：US13563870
申请日：2012-08-01
申请人： Jeremy T. Peterson , Bryan E. Nelson
发明人： Jeremy T. Peterson , Bryan E. Nelson
IPC分类号： F16D31/02 , F15B11/02 , E02F9/22 , F16H61/431 , F16H61/438 , F01P7/04
CPC分类号： E02F9/2217 , E02F9/2235 , E02F9/226 , E02F9/2285 , E02F9/2289 , E02F9/2296 , F01P7/044 , F16H61/431 , F16H61/438
摘要： A hydraulic circuit is provided. The hydraulic circuit includes a primary pump, a displacement actuator, a charge pump, a direction control valve, and a pressure control valve. The displacement actuator is associated with the primary pump. The charge pump is configured to generate a flow of a pilot fluid. The direction control valve is configured to control the flow of the pilot fluid to the displacement actuator to affect a movement direction of the displacement actuator. The pressure control valve is configured to control a pressure of the pilot fluid to affect a movement amount of the displacement actuator. Further, the hydraulic circuit includes a controller. The controller is configured to control the direction and the pressure control valves to adjust a displacement of the primary pump based at least on one of a sensed engine parameter or a mode of operation of the primary pump.
摘要翻译：提供液压回路。液压回路包括主泵，排量致动器，电荷泵，方向控制阀和压力控制阀。位移致动器与主泵相关联。电荷泵构造成产生先导流体的流动。方向控制阀构造成控制先导流体到位移致动器的流动，以影响位移致动器的移动方向。压力控制阀构造成控制先导流体的压力以影响位移致动器的移动量。此外，液压回路包括控制器。所述控制器被配置成控制所述方向和所述压力控制阀，以至少基于感测到的所述主泵的所述发动机参数或所述主泵的操作模式之一来调节所述主泵的位移。

57. 发明授权

US08838349B2 Drive control system for construction machinery 有权
标题翻译：工程机械驱动控制系统
公开(公告)号：US08838349B2
公开(公告)日：2014-09-16
申请号：US13997938
申请日：2010-12-27
申请人： Sang-Ki Bae , Jae-Hoon Lee , Sung-Yong Jo
发明人： Sang-Ki Bae , Jae-Hoon Lee , Sung-Yong Jo
IPC分类号： G06F7/70 , E02F9/22 , G06F17/00 , F15B11/17
CPC分类号： G06F17/00 , E02F9/2253 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B2211/20546 , F15B2211/20576 , F15B2211/665 , F15B2211/6658 , F15B2211/7058 , F15B2211/7135 , F15B2211/7142 , F15B2211/763 , F16H61/4078 , F16H61/421 , F16H61/438
摘要： A drive control system for preventing a sudden slowdown of driving speed to reduce the shock felt by a driver, when compound-operating two-way driving and a work device in an excavator.
摘要翻译：一种驱动控制系统，用于在挖掘机中复合操作双向驾驶和作业装置时，防止驾驶速度突然减速，以减少驾驶员感到的震动。

58. 发明授权

US08342284B2 Work vehicle 有权
标题翻译：工作车辆
公开(公告)号：US08342284B2
公开(公告)日：2013-01-01
申请号：US13392376
申请日：2010-09-01
申请人： Hirotaka Takahashi , Toru Shiina
发明人： Hirotaka Takahashi , Toru Shiina
IPC分类号： B60K17/10
CPC分类号： F16H61/4017 , B60W2520/06 , F16H59/18 , F16H59/44 , F16H61/431 , F16H61/438 , F16H2059/088
摘要： In a work vehicle, a cutoff-pressure-setting part sets cutoff pressure at a predetermined first pressure value when vehicle speed is greater than a predetermined first speed threshold, and at a second pressure value greater than the first pressure value when vehicle speed is equal to or less than a second speed threshold less than the first speed threshold. When the vehicle is moving forward and the forward/backward switch lever is in forward motion position, or when the vehicle is moving backward and the forward/backward switch lever is in backward motion position, the second speed threshold is set to a predetermined first value. When the vehicle is moving forward and the forward/backward switch lever is in backward motion position or when the vehicle is moving backward and the forward/backward switch lever is in forward motion position, the second speed threshold is set to a second value lower than the first value.
摘要翻译：在作业车辆中，当车速大于规定的第一速度阈值时，截止压力设定部将切断压力设定在预定的第一压力值，并且当车速相等时，将第二压力值设定为大于第一压力值小于或小于小于第一速度阈值的第二速度阈值。当车辆向前移动并且前进/后退开关杆处于向前运动位置时，或者当车辆向后移动并且前进/后退开关杆处于向后运动位置时，将第二速度阈值设置为预定的第一值。当车辆向前移动并且前/后开关杆处于向后运动位置时或当车辆向后运动并且前/后开关杆处于向前运动位置时，第二速度阈值被设置为低于第一个值。

59. 发明申请

US20120152641A1 WORK VEHICLE 有权
标题翻译：工作车辆
公开(公告)号：US20120152641A1
公开(公告)日：2012-06-21
申请号：US13392376
申请日：2010-09-01
申请人： Hirotaka Takahashi , Toru Shiina
发明人： Hirotaka Takahashi , Toru Shiina
IPC分类号： B60K6/08 , F16H61/433 , F16H61/431 , F16H61/438
CPC分类号： F16H61/4017 , B60W2520/06 , F16H59/18 , F16H59/44 , F16H61/431 , F16H61/438 , F16H2059/088
摘要： In a work vehicle, a cutoff-pressure-setting part sets cutoff pressure at a predetermined first pressure value when vehicle speed is greater than a predetermined first speed threshold, and at a second pressure value greater than the first pressure value when vehicle speed is equal to or less than a second speed threshold less than the first speed threshold. When the vehicle is moving forward and the forward/backward switch lever is in forward motion position, or when he vehicle is moving backward and the forward/backward switch lever is in backward motion position, the second speed threshold is set to a predetermined first value. When the vehicle is moving forward and the forward/backward switch lever is in backward motion position or when the vehicle is moving backward and the forward/backward switch lever is in forward motion position, the second speed threshold is set to a second value lower than the first value.
摘要翻译：在作业车辆中，当车速大于规定的第一速度阈值时，截止压力设定部将切断压力设定在预定的第一压力值，并且当车速相等时，将第二压力值设定为大于第一压力值小于或小于小于第一速度阈值的第二速度阈值。当车辆向前移动并且前/后开关杆处于向前运动位置时，或当车辆向后移动并且前/后开关杆处于向后运动位置时，将第二速度阈值设置为预定的第一值。当车辆向前移动并且前/后开关杆处于向后运动位置时或当车辆向后运动并且前/后开关杆处于向前运动位置时，第二速度阈值被设置为低于第一个值。

60. 发明申请

US20110003660A1 DRIVE ARRANGEMENT WITH OPEN LOOP HYDRAULIC MECHANISM OPERABLE AS A PUMP OR A MOTOR 有权
标题翻译：驱动装置与开环液压机构作为泵或电机可操作
公开(公告)号：US20110003660A1
公开(公告)日：2011-01-06
申请号：US12741186
申请日：2008-11-03
申请人： Norman Grant
发明人： Norman Grant
IPC分类号： F16H47/08 , F16H45/00
CPC分类号： B60K6/12 , B60K6/365 , B60K6/48 , F16H47/04 , F16H61/438 , F16H2037/088 , Y02T10/6208 , Y02T10/6221 , Y02T10/6282
摘要： A drive arrangement suitable for driving a final drive comprises a first drive means and a power-splitting gear arrangement. A first hydraulic mechanism is operable either as a pump or a motor. The first hydraulic mechanism is capable of being driven from the first drive means or from the final drive or both concurrently, acting through the gear arrangement. The final drive is drivable through the gear arrangement from the first drive means or the first hydraulic mechanism or both concurrently.
摘要翻译：适于驱动最终驱动的驱动装置包括第一驱动装置和动力分配齿轮装置。第一液压机构可以作为泵或马达操作。第一液压机构能够通过齿轮装置从第一驱动装置或从最终驱动装置或同时驱动。最终传动装置可以通过齿轮装置从第一驱动装置或第一液压机构或两者同时驱动。

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