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1. 发明授权

US11952748B2 Work vehicle and control method for work vehicle 有权
公开(公告)号：US11952748B2
公开(公告)日：2024-04-09
申请号：US17276936
申请日：2019-10-31
申请人： KOMATSU LTD.
发明人： Akira Nakashima
IPC分类号： E02F9/22 , E02F9/20 , F16H59/44 , F16H59/74 , F16H61/431 , F16H61/465 , E02F3/76 , F16H59/02 , F16H59/36 , F16H59/46
CPC分类号： E02F9/2253 , E02F9/2066 , E02F9/2296 , F16H59/44 , F16H59/74 , F16H61/431 , F16H61/465 , E02F3/7613 , E02F3/7618 , E02F9/2228 , E02F9/2235 , E02F9/2285 , F16H59/02 , F16H2059/366 , F16H59/46
摘要： A hydraulic pump is driven by an engine. A hydraulic motor is driven by hydraulic fluid discharged from the hydraulic pump thereby causing a vehicle to travel. A controller controls a rotation speed of the engine and a displacement of the hydraulic pump. The controller acquires a tractive force of the vehicle. The controller changes the rotation speed of the engine to a low speed side in accordance with a reduction in the tractive force.

2. 发明授权

US08327638B2 Hydraulic drive apparatus and hydraulically-driven vehicle 有权
标题翻译：液压驱动装置和液压驱动车辆
公开(公告)号：US08327638B2
公开(公告)日：2012-12-11
申请号：US12449102
申请日：2008-01-09
申请人： Naritoshi Ohtsukasa
发明人： Naritoshi Ohtsukasa
IPC分类号： F16H61/42 , E02F9/22
CPC分类号： F16H61/421 , E02F9/2235 , F16H59/06 , F16H61/431 , F16H61/465 , F16H61/472 , F16H61/478 , F16H2059/065 , F16H2059/366 , F16H2059/6861
摘要： The object of the present invention is to allow an operator to easily perform desired operations with high hydraulic efficiency, without an increase in difficulty of performing operations. A hydraulic drive apparatus of the present invention includes a pump control unit 31 that includes: a pump reference command value setting unit 31a that sets a pump reference command value for a hydraulic pump 10 in accordance with the engine speed of an engine 3; a pump correction command value calculating unit 31b that sets a pump command value by determining an inching rate in accordance with the amount of operation when an inching operation is performed, and correcting the pump reference command value in accordance with the inching rate; and a pump control command value setting unit 31c that sets a pump control command value for controlling the capacity of the hydraulic pump 10, based on the pump command value set by the pump correction command value calculating unit 31b.
摘要翻译：本发明的目的是允许操作者以高的液压效率容易地执行所需的操作，而不增加执行操作的难度。本发明的液压驱动装置包括：泵控制单元31，其包括：泵参考指令值设定单元31a，其根据发动机3的发动机转速来设定液压泵10的泵基准指令值; 泵修正指令值计算部31b，其通过根据进行微动作动时的动作量确定微动速度来设定泵指令值，并根据加速速度校正泵基准指令值; 以及泵控制指令值设定部31c，根据由泵修正指令值计算部31b设定的泵指令值，设定用于控制液压泵10的容量的泵控制指令值。

3. 发明授权

US08261544B2 Control system and method for braking a hydrostatic drive machine 有权
标题翻译：制动液压驱动机的控制系统及方法
公开(公告)号：US08261544B2
公开(公告)日：2012-09-11
申请号：US12229927
申请日：2008-08-28
申请人： J. Swapna Basana , Steven A. Daniel , Norval Thomson , Michael Anderson , Daniel P. Sergison
发明人： J. Swapna Basana , Steven A. Daniel , Norval Thomson , Michael Anderson , Daniel P. Sergison
IPC分类号： F16D31/02
CPC分类号： B60T10/04 , B60W10/06 , B60W10/103 , B60W30/18109 , B60W30/18136 , B60W2710/0644 , B60Y2200/411 , F16H61/4157 , F16H61/421 , F16H61/431 , F16H61/465
摘要： A method of braking a hydrostatic drive machine includes steps of reducing a displacement of a pump of a hydrostatic drive system to a non-zero displacement, and increasing a displacement of a motor of the hydrostatic drive system to a displacement that is less than a maximum displacement. The method also includes a step of accelerating an engine of the hydrostatic drive system toward a desired engine speed range.
摘要翻译：制动静液压驱动机器的方法包括以下步骤：将静液压驱动系统的泵的位移减小到非零位移，并且将静液压驱动系统的电动机的位移增加到小于最大值的位移移位。该方法还包括将静液压驱动系统的发动机加速到期望的发动机转速范围的步骤。

4. 发明申请

US20090320462A1 HYDRAULIC DRIVE APPARATUS AND HYDRAULICALLY-DRIVEN VEHICLE 有权
标题翻译：液压驱动装置和液压驱动的车辆
公开(公告)号：US20090320462A1
公开(公告)日：2009-12-31
申请号：US12449102
申请日：2008-01-09
申请人： Naritoshi Ohtsukasa
发明人： Naritoshi Ohtsukasa
IPC分类号： F16D31/02
CPC分类号： F16H61/421 , E02F9/2235 , F16H59/06 , F16H61/431 , F16H61/465 , F16H61/472 , F16H61/478 , F16H2059/065 , F16H2059/366 , F16H2059/6861
摘要： The object of the present invention is to allow an operator to easily perform desired operations with high hydraulic efficiency, without an increase in difficulty of performing operations. A hydraulic drive apparatus of the present invention includes a pump control unit 31 that includes: a pump reference command value setting unit 31a that sets a pump reference command value for a hydraulic pump 10 in accordance with the engine speed of an engine 3; a pump correction command value calculating unit 31b that sets a pump command value by determining an inching rate in accordance with the amount of operation when an inching operation is performed, and correcting the pump reference command value in accordance with the inching rate; and a pump control command value setting unit 31c that sets a pump control command value for controlling the capacity of the hydraulic pump 10, based on the pump command value set by the pump correction command value calculating unit 31b.
摘要翻译：本发明的目的是允许操作者以高的液压效率容易地执行所需的操作，而不增加执行操作的难度。本发明的液压驱动装置包括：泵控制单元31，其包括：泵参考指令值设定单元31a，其根据发动机3的发动机转速来设定液压泵10的泵基准指令值; 泵修正指令值计算部31b，其通过根据进行微动作动时的动作量确定微动速度来设定泵指令值，并根据加速速度校正泵基准指令值; 以及泵控制指令值设定部31c，根据由泵修正指令值计算部31b设定的泵指令值，设定用于控制液压泵10的容量的泵控制指令值。

5. 发明申请

US20080250259A1 Power Machine or Vehicle with Power Management 有权
标题翻译：动力机械或具有电力管理的车辆
公开(公告)号：US20080250259A1
公开(公告)日：2008-10-09
申请号：US11696414
申请日：2007-04-04
申请人： Troy D. Kraft , Scott N. Schuh
发明人： Troy D. Kraft , Scott N. Schuh
IPC分类号： G06F1/32
CPC分类号： F16H61/475 , B60W30/14 , E02F9/2246 , E02F9/2296 , F16H61/431 , F16H61/465
摘要： Power management control for a power machine or vehicle is disclosed. In illustrated embodiments, a user interface of the power machine or vehicle includes a power management selection for activating and deactivating power management control. In illustrated embodiments, power management control is implemented through a power management control component based upon feedback from an RPM sensor. As disclosed in illustrative embodiments, the power management control component utilizes control methods and characteristics stored in system memory to determine control input to adjust hydrostatic parameters for power management.
摘要翻译：公开了电力机器或车辆的电力管理控制。在所示的实施例中，动力机器或车辆的用户界面包括用于激活和停用功率管理控制的功率管理选择。在所示实施例中，基于来自RPM传感器的反馈，通过功率管理控制部件实现功率管理控制。如在说明性实施例中所公开的，功率管理控制部件利用存储在系统存储器中的控制方法和特性来确定控制输入以调节用于电力管理的静水参数。

6. 发明申请

US20080207398A1 METHOD AND APPARATUS FOR RETARDING AN ENGINE 有权
标题翻译：用于延迟发动机的方法和装置
公开(公告)号：US20080207398A1
公开(公告)日：2008-08-28
申请号：US11961008
申请日：2007-12-20
申请人： Paul A. Dvorak , Christopher M. Elliott
发明人： Paul A. Dvorak , Christopher M. Elliott
IPC分类号： B60W10/06
CPC分类号： B60W10/103 , B60W30/1884 , E02F9/2246 , E02F9/226 , E02F9/2292 , E02F9/2296 , F16H61/465 , Y10T477/753
摘要： A method and system for retarding an engine of a machine is provided. The machine has a hydraulic pump driven by the engine, a motor driven by the hydraulic pump, and a fan driven by the motor. The method includes sensing the operating speed of the engine with an engine speed sensor. The method also includes operating the motor at a first pressure. The method also includes comparing the operating speed to a trigger speed. The method also includes operating the motor at a second pressure greater than the first pressure if the operating speed of engine exceeds the trigger speed by a predetermined value.
摘要翻译：提供一种用于延迟机器发动机的方法和系统。该机具有由发动机驱动的液压泵，由液压泵驱动的电动机和由电动机驱动的风扇。该方法包括用发动机转速传感器感测发动机的运行速度。该方法还包括在第一压力下操作马达。该方法还包括将操作速度与触发速度进行比较。如果发动机的操作速度超过触发速度预定值，该方法还包括以大于第一压力的第二压力操作电动机。

7. 发明申请

US20070254771A1 Efficiency based integrated power train control system 失效
标题翻译：基于效率的综合动力传动系控制系统
公开(公告)号：US20070254771A1
公开(公告)日：2007-11-01
申请号：US11600745
申请日：2006-11-17
申请人： Steven J. Funke , Jason K. Bloms , Thomas J. Crowell , Scott A. Leman , James R. Weber , Jeffrey H. Skorupski , Thomas A. Genise , Richard A. Nellums , Daniel G. Smedley , Donald Speranza
发明人： Steven J. Funke , Jason K. Bloms , Thomas J. Crowell , Scott A. Leman , James R. Weber , Jeffrey H. Skorupski , Thomas A. Genise , Richard A. Nellums , Daniel G. Smedley , Donald Speranza
IPC分类号： F16H61/40 , F16H47/04
CPC分类号： B60W10/103 , B60W10/06 , B60W30/1882 , B60W2540/10 , F16H47/02 , F16H61/46 , F16H61/465 , F16H2061/0015 , Y02T10/56 , Y02T10/84 , Y10T477/6217 , Y10T477/623 , Y10T477/636 , Y10T477/637 , Y10T477/679
摘要： A power train control system for a mobile machine is disclosed. The power train control system has a power source configured to produce a power output, a transmission device operatively connected to receive the power output and propel the mobile machine, and a control module. The control module is configured to receive an indication of a power demand, receive an indication of a current travel speed of the mobile machine, and reference the power demand and the current travel speed with a power train efficiency map to determine a desired power source speed. The power train control system is also configured to control operation of the transmission device to bring a speed of the power source within a predetermined amount of the desired power source speed.
摘要翻译：公开了一种用于移动机器的动力传动系控制系统。动力传动系控制系统具有被配置为产生动力输出的动力源，可操作地连接以接收动力输出并推动移动机器的传动装置和控制模块。控制模块被配置为接收电力需求的指示，接收移动机器的当前行驶速度的指示，并用动力传动系效率图来参考电力需求和当前行驶速度，以确定期望的电源速度。动力传动系控制系统还被配置为控制传动装置的操作，以使电源的速度达到所需电源速度的预定量。

8. 发明申请

US20040209718A1 Hydraulic transmission vehicle 失效
标题翻译：液压传动车
公开(公告)号：US20040209718A1
公开(公告)日：2004-10-21
申请号：US10805561
申请日：2004-03-22
发明人： Fumio Ishibashi , Yukio Kubota , Yasuo Noma , Akifumi Kuroda
IPC分类号： F16H059/00 , F16H061/00 , F16H063/00
CPC分类号： B60W10/103 , B60W30/1888 , B60W2510/0642 , B60W2510/186 , B60Y2200/22 , B60Y2200/221 , F16H47/04 , F16H59/16 , F16H59/22 , F16H59/46 , F16H59/54 , F16H61/439 , F16H61/46 , F16H61/465 , F16H61/468 , F16H61/47 , F16H2037/088 , F16H2037/0886 , F16H2059/148 , F16H2061/168 , Y02T10/56 , Y02T10/84 , Y10T477/631 , Y10T477/636 , Y10T477/688
摘要： A hydraulic transmission (21) has an electric actuator (86) for changing its output/input rotation speed ratio. A controller (19) of the actuator memorizes a command current value to the actuator supposing that load is not applied on the hydraulic transmission, and calculates a value of load applied on the hydraulic transmission by calculating a difference between an actual command current value to the actuator and the memorized command current value. A command current value is compensated based on the value of load, and the actuator receives feedback to be controlled. A vehicle may have a differential mechanism (10), which combines rotation powers on input side and output side of the hydraulic transmission. A detector (82) detects rotation speed of a main speed change output shaft (27) serving as an output shaft of the differential mechanism. If the detected rotation speed differs from target rotation speed of the shaft (27) determined based on operation of a speed change operation tool, the actuator is forcedly controlled. This difference is supposed to be caused by load applied on the hydraulic transmission, whereby the load is calculated.
摘要翻译：液压变速器（21）具有用于改变其输出/输入转速比的电致动器（86）。致动器的控制器（19）将致动器的指令电流值存储在假定不施加负载的液压变速器上，并通过计算实际指令电流值与执行器和存储的指令电流值。基于负载值补偿指令电流值，并且执行器接收要控制的反馈。车辆可以具有差速机构（10），其将液压变速器的输入侧和输出侧的旋转动力组合。检测器（82）检测作为差速机构的输出轴的主变速输出轴（27）的转速。如果检测到的转速与基于变速操作工具的操作确定的轴（27）的目标转速不同，则致动器被强制控制。这个差异应该是由施加在液压传动装置上的载荷引起的，由此计算载荷。

9. 发明授权

US06260647B1 Electronic engine speed controller 有权
标题翻译：电子发动机转速控制器
公开(公告)号：US06260647B1
公开(公告)日：2001-07-17
申请号：US09385816
申请日：1999-08-30
申请人： Michael A. Calamari , Paul D. Fuller , Bhikhubhai S. Mistry , Dante T. Thomas , J. Roger Watson
发明人： Michael A. Calamari , Paul D. Fuller , Bhikhubhai S. Mistry , Dante T. Thomas , J. Roger Watson
IPC分类号： B60K4100
CPC分类号： F16H61/433 , B60K17/10 , B60W2710/0644 , B60Y2200/415 , E02F9/2062 , E02F9/2246 , E02F9/2292 , E02F9/2296 , F02D29/04 , F02D31/001 , F02D41/0205 , F16H61/465 , F16H61/47
摘要： An electronic engine speed control system is used on a work machine utilizing an engine with a governor control movable between a plurality of positions. The governor control is operated by an operator so that a desired engine speed may be selected for driving a plurality of wheels through a transmission. The transmission is specifically controlled to obtain a desired ground speed independent of the selected engine speed. The engine speed control system includes an electronic control module. An operator switch is connected to the control module and is movable to a set position which sends an input signal with a desired engine speed value corresponding to a selected engine speed to the control module. An engine sensor is connectable between the engine and the control module for sensing the speed of the engine and sending an input signal with an actual engine speed value to the control module. An actuator is connected between the control module and the governor control and responsive to a control signal from the control module for moving the governor control to any one of the plurality of positions. The control signal is delivered to the actuator as a function of the desired and actual values so that the engine speed is electronically set and maintained at the selected engine speed.
摘要翻译：电子发动机转速控制系统被用于利用具有可在多个位置之间移动的调速器控制的发动机的作业机械上。调速器控制由操作者操作，使得可以选择期望的发动机速度以通过变速器驱动多个车轮。专门控制变速器以获得独立于所选择的发动机转速的期望的地速。发动机速度控制系统包括电子控制模块。操作开关连接到控制模块，并且可移动到设定位置，该设定位置将具有与所选发动机转速对应的期望发动机转速值的输入信号发送到控制模块。发动机传感器可在发动机和控制模块之间连接，用于感测发动机的速度，并将具有实际发动机转速值的输入信号发送到控制模块。致动器连接在控制模块和调速器控制之间，并且响应来自控制模块的控制信号，用于将调速器控制移动到多个位置中的任何一个位置。控制信号作为期望值和实际值的函数被传送到致动器，使得发动机速度被电子地设定并保持在所选择的发动机转速。

10. 发明授权

US06247295B1 Hydro-mechanical transmission system for an agricultural combine 有权
标题翻译：农业机械传动系统
公开(公告)号：US06247295B1
公开(公告)日：2001-06-19
申请号：US09428847
申请日：1999-10-28
申请人： John C. Hansen , Jeffery D. Frego , David J. Templeton , Steven C. Young
发明人： John C. Hansen , Jeffery D. Frego , David J. Templeton , Steven C. Young
IPC分类号： F16H4704
CPC分类号： F16H61/465 , B60Y2200/222 , F16H47/04 , F16H61/46 , F16H61/462 , F16H2037/088
摘要： The invention consists of an engine driving a wet clutch and hydrostatic pump and connected hydrostatic motor. The output of the motor drives the sun gear of a hydro-mechanical planetary drive and the output of the clutch drives the ring gear of the same drive. The carrier is the output and drives the rotors of an agricultural combine. The transmission is controlled by a microcomputer. The microcomputer receives signals from an engine speed sensor and a rotor speed sensor and transmits controlling signals to the hydrostatic pump's swash plate and to a clutch valve allowing a quantity of hydraulic fluid to enter the clutch. The microcomputer can also send a signal to brake the ring gear while reversing the direction of the hydrostatic pump motor to allow act as a reverser for the rotor. The microcomputer also can receive signals from the rotor speed sensor to open the clutch valve allowing a quantity of hydraulic fluid to enter and synchronize the clutch. This allows the clutch to slowly begin to rotate the rotors will at the same time limit damage to the clutch.
摘要翻译：本发明包括驱动湿式离合器和静液压泵以及连接的静液压马达的发动机。电机的输出驱动水力机械行星驱动器的太阳齿轮，离合器的输出驱动相同驱动器的齿圈。承运人是输出并驱动农业组合的转子。传输由微型计算机控制。微型计算机接收来自发动机速度传感器和转子速度传感器的信号，并将控制信号发送到静液压泵的斜盘和允许一定数量的液压流体进入离合器的离合器阀。微型计算机还可以发送信号来制动环形齿轮，同时反转静液压泵马达的方向，以允许作为转子的反向器。微型计算机还可以接收来自转子速度传感器的信号以打开离合器阀，允许一定数量的液压流体进入并同步离合器。这允许离合器缓慢开始转动转子，同时限制离合器的损坏。

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