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1. 发明授权

US06385970B1 Underspeed control system for a hydromechanical drive system and method of operating same 失效
标题翻译：液压机械驱动系统的低速控制系统及其操作方法
公开(公告)号：US06385970B1
公开(公告)日：2002-05-14
申请号：US09377723
申请日：1999-08-19
申请人： Brian D. Kuras , Charles E. Rose , Kevin J. Lueschow
发明人： Brian D. Kuras , Charles E. Rose , Kevin J. Lueschow
IPC分类号： F16D3102
CPC分类号： F16H47/04 , B60W10/04 , B60W10/101 , B60W2510/0638 , F02D31/001 , F02D2041/1409 , F16H61/46 , F16H61/465 , F16H61/66 , F16H2037/0886
摘要： An apparatus for controlling load on an engine is disclosed. The apparatus includes a continuously variable transmission driven by the engine. The apparatus further includes an engine speed sensor being adapted to sense the output speed of the engine and produce an engine speed signal indicative of the engine output speed and a travel speed sensor being adapted to sense the travel speed of the machine and produce a travel speed signal indicative of the machine travel speed. The apparatus yet further includes an electronic controller operable to compare the engine speed signal to an underspeed value and produce an integral error signal indicative of the difference between the engine speed signal and the underspeed value, supply an integral gain value based on the machine travel speed, modify the integral error signal through a proportional plus integral feedback controller to produce an underspeed request signal, and produce a command signal based on the underspeed request signal. The command signal is used to control the transmission ratio of the continuously variable transmission so as to control the load on the engine. A method for controlling a load on an engine associated with a continuously variable transmission is also disclosed.
摘要翻译：公开了一种用于控制发动机负载的装置。该装置包括由发动机驱动的无级变速传动装置。该装置还包括发动机速度传感器，其适于感测发动机的输出速度并产生指示发动机输出速度的发动机速度信号，行驶速度传感器适于感测机器的行驶速度并产生行驶速度指示机器行进速度的信号。该装置还包括电子控制器，其可操作以将发动机转速信号与低速值进行比较，并产生表示发动机转速信号与欠速值之差的积分误差信号，基于机器行进速度提供积分增益值，通过比例积分反馈控制器修改积分误差信号，产生欠速请求信号，并根据欠速请求信号产生指令信号。命令信号用于控制无级变速器的传动比，以控制发动机的负荷。还公开了一种用于控制与无级变速器相关的发动机上的负载的方法。

2. 发明授权

US06223111B1 Method and apparatus for generating velocity commands for a continuously variable transmission 有权
标题翻译：用于产生无级变速器的速度指令的方法和装置
公开(公告)号：US06223111B1
公开(公告)日：2001-04-24
申请号：US09288577
申请日：1999-04-08
申请人： Michael G. Cronin , Brian D. Kuras , Kevin J. Lueschow , Jerry D. Marr
发明人： Michael G. Cronin , Brian D. Kuras , Kevin J. Lueschow , Jerry D. Marr
IPC分类号： F16H6146
CPC分类号： F16H61/46 , F16H61/47 , F16H61/66254 , Y10T477/636 , Y10T477/692
摘要： A control apparatus for a continuously variable transmission is disclosed. The control apparatus includes a transmission speed sensor which generates an actual velocity signal in response measuring speed of an output shaft of the continuously variable transmission. The control apparatus further includes a first input device, or speed pedal, which is positionable in one of an infinite number of positions and generates a desired velocity signal corresponding to the position of the speed pedal. The control apparatus yet further includes a controller operable to receive the desired velocity signal, receive the actual velocity signal, calculate a commanded acceleration ac, and generate a commanded velocity Vc based on the desired velocity signal, a jerk value j, and the commanded acceleration ac. A method of controlling a continuously variable transmission is also disclosed.
摘要翻译：公开了一种用于无级变速器的控制装置。该控制装置包括传递速度传感器，其根据无级变速器的输出轴的测量速度产生实际速度信号。控制装置还包括第一输入装置或速度踏板，该第一输入装置或速度踏板可定位在无限数量的位置之一，并产生对应于速度踏板的位置的所需速度信号。控制装置还包括控制器，其可操作以接收所需速度信号，接收实际速度信号，计算指令加速度ac，并基于所需速度信号，加加速度值j和指令加速度产生指令速度Vc ac。还公开了一种控制无级变速器的方法。

3. 发明授权

US6042502A Method and apparatus for generating velocity commands in response to rapid changes in operator inputs 有权
标题翻译：响应于操作者输入的快速变化产生速度指令的方法和装置
公开(公告)号：US6042502A
公开(公告)日：2000-03-28
申请号：US288427
申请日：1999-04-08
申请人： Michael G. Cronin , Brian D. Kuras , Kevin J. Lueschow
发明人： Michael G. Cronin , Brian D. Kuras , Kevin J. Lueschow
IPC分类号： F16H47/04 , F16H61/02 , F16H61/46 , F16H61/47
CPC分类号： F16H61/46 , F16H47/04 , F16H61/47 , B60W2540/106 , F16H2037/0886 , Y10T477/636 , Y10T477/692
摘要： A control apparatus for a continuously variable transmission is disclosed. The control apparatus includes a transmission speed sensor which generates actual velocity signals in response measuring a speed of an output shaft of the continuously variable transmission. The control apparatus further includes a first input device which is positionable in one of a number of positions and generates a desired velocity signal corresponding to the one of the number of positions. The control apparatus yet further includes a controller operable to receive the desired velocity signals, receive the actual velocity signals, determine when rapid changes in the desired velocity are requested by an operator, and generate a commanded acceleration and a commanded velocity based on a jerk value which exceeds a predetermined jerk limit in response to the rapid changes in the desired velocity. A method of controlling a continuously variable transmission is also disclosed.
摘要翻译：公开了一种用于无级变速器的控制装置。该控制装置包括传递速度传感器，其响应于测量无级变速器的输出轴的速度产生实际的速度信号。控制装置还包括第一输入装置，该第一输入装置可定位在多个位置中的一个位置，并且产生对应于该位置数之一的所需速度信号。控制装置还包括控制器，其可操作以接收所需速度信号，接收实际速度信号，确定何时由操作者请求所需速度的快速变化，并且基于加加速度值产生命令加速度和命令速度其响应于期望速度的快速变化而超过预定的加加速度极限。还公开了一种控制无级变速器的方法。

4. 发明授权

US06343250B1 Method and apparatus for smoothing the output of a hydrostatic transmission near zero speed 失效
标题翻译：用于使靠近零速度的静液压传动装置的输出平滑的方法和装置
公开(公告)号：US06343250B1
公开(公告)日：2002-01-29
申请号：US09575476
申请日：2000-05-19
申请人： Brian D. Kuras , Charles E. Rose
发明人： Brian D. Kuras , Charles E. Rose
IPC分类号： F16H3946
CPC分类号： F16H47/04 , F16H59/38 , F16H61/439 , F16H61/47 , F16H2037/0886
摘要： A transmission assembly includes a variable displacement hydraulic pump, a hydraulic motor operatively connected to the pump, a speed sensor operable to sense the speed of an output shaft of the motor, a first actuator for setting displacement of the pump in a positive displacement range in response to a first actuator command and a second actuator for setting displacement of the pump in a negative displacement range in response to a second actuator command. A controller is operable to transmit first actuator commands to the first actuator and transmit second actuator commands to the second actuator in response to operator inputs. The operator inputs require that the displacement of the pump to move from the positive displacement range to the negative displacement range. The controller generates first actuator commands which cause the first actuator to set the displacement to zero. The controller generates second actuator commands in response to the speed of the output shaft reaching a predetermined motor speed limit which cause the second actuator to set the displacement of the pump in the negative displacement region.
摘要翻译：传动组件包括可变排量液压泵，可操作地连接到泵的液压马达，可操作以感测马达的输出轴的速度的速度传感器，用于将泵的位移设置在正位移范围内的第一致动器响应于第一致动器命令和第二致动器，用于响应于第二致动器命令将泵的位移设置在负位移范围内。控制器可操作地将第一致动器命令传送到第一致动器，并响应于操作者输入将第二致动器命令传送到第二致动器。操作员输入要求泵的位移从正位移范围移动到负位移范围。控制器产生第一致动器命令，其使第一致动器将位移设置为零。控制器响应于输出轴的速度达到预定的电动机速度限制而产生第二致动器命令，这使得第二致动器将泵的位移设定在负位移区域中。

5. 发明授权

US07854681B2 System for controlling a machine with a continuously variable transmission 有权
标题翻译：用无级变速器控制机器的系统
公开(公告)号：US07854681B2
公开(公告)日：2010-12-21
申请号：US11797014
申请日：2007-04-30
申请人： Thomas M. Sopko , Brian D. Kuras , Michael J. Barngrover
发明人： Thomas M. Sopko , Brian D. Kuras , Michael J. Barngrover
IPC分类号： F16H59/14 , F16H59/54
CPC分类号： B60W30/188 , B60K6/46 , B60L2240/486 , B60W10/04 , B60W10/06 , B60W10/105 , B60W2300/17 , B60W2520/06 , B60W2540/04 , B60W2710/0644 , B60W2710/105 , B60Y2200/14 , Y02T10/6217 , Y10T477/60 , Y10T477/644
摘要： A system for controlling a machine with a continuously variable transmission includes a first control device configured to produce a first signal based on a first operator input and a second control device configured to produce a second signal based on a second operator input. The system also includes a control system configured to receive the first and second signals from the first and second control devices and generate a raw torque value based on the first and second signals. The control system is also configured to determine an output torque value based on the raw torque value and transmit the output torque value to the transmission to control the transmission.
摘要翻译：一种用于控制具有无级变速器的机器的系统，包括：第一控制装置，被配置为基于第一操作者输入产生第一信号;以及第二控制装置，其被配置为基于第二操作者输入产生第二信号。该系统还包括配置成从第一和第二控制装置接收第一和第二信号并基于第一和第二信号产生原始转矩值的控制系统。控制系统还被配置为基于原始转矩值确定输出转矩值，并将输出转矩值发送到变速器以控制变速器。

6. 发明申请

US20100095665A1 Hydrostatic pump and motor with improved torque reversal characteristics 失效
标题翻译：静液压泵和电机具有改进的扭矩反转特性
公开(公告)号：US20100095665A1
公开(公告)日：2010-04-22
申请号：US12255350
申请日：2008-10-21
申请人： Brian D. Kuras , Michael G. Cronin , Frank Anthony DeMarco , Tyler Bowman
发明人： Brian D. Kuras , Michael G. Cronin , Frank Anthony DeMarco , Tyler Bowman
IPC分类号： F15B13/044 , F15B21/08
CPC分类号： F16H61/4104 , F16H61/4165 , F16H2059/144
摘要： A system and method for variator control employs positively directed electronic make-up and flushing relief valves for more precise torque control of a hydraulic variator, especially during torque reversal, as well as improved cold weather operation. This can improve machine response during periods of severe torque change. The ability to more tightly control variator torque allows more precise torque management algorithms for power control and engine matching purposes. Moreover, the ability to positively control venting of the hydraulic circuit for purposes of fluid cooling allows for more consistent machine response regardless of ambient temperature.
摘要翻译：用于变换器控制的系统和方法使用正向电子化妆和冲洗安全阀，用于液压变速器的更精确的扭矩控制，特别是在扭矩反转期间以及改进的寒冷天气操作。这可以在严重的扭矩变化期间改善机器响应。更紧密地控制变矩器扭矩的能力允许更精确的扭矩管理算法用于功率控制和发动机匹配目的。此外，为了流体冷却的目的，积极控制液压回路排气的能力允许不管环境温度如何，更一致的机器响应。

7. 发明申请

US20080269011A1 System for controlling a machine with a continuously variable transmission 有权
标题翻译：用无级变速器控制机器的系统
公开(公告)号：US20080269011A1
公开(公告)日：2008-10-30
申请号：US11797014
申请日：2007-04-30
申请人： Thomas M. Sopko , Brian D. Kuras , Michael J. Barngrover
发明人： Thomas M. Sopko , Brian D. Kuras , Michael J. Barngrover
IPC分类号： B60W10/10
CPC分类号： B60W30/188 , B60K6/46 , B60L2240/486 , B60W10/04 , B60W10/06 , B60W10/105 , B60W2300/17 , B60W2520/06 , B60W2540/04 , B60W2710/0644 , B60W2710/105 , B60Y2200/14 , Y02T10/6217 , Y10T477/60 , Y10T477/644
摘要： A system for controlling a machine with a continuously variable transmission includes a first control device configured to produce a first signal based on a first operator input and a second control device configured to produce a second signal based on a second operator input. The system also includes a control system configured to receive the first and second signals from the first and second control devices and generate a raw torque value based on the first and second signals. The control system is also configured to determine an output torque value based on the raw torque value and transmit the output torque value to the transmission to control the transmission.
摘要翻译：一种用于控制具有无级变速器的机器的系统，包括：第一控制装置，被配置为基于第一操作者输入产生第一信号;以及第二控制装置，其被配置为基于第二操作者输入产生第二信号。该系统还包括配置成从第一和第二控制装置接收第一和第二信号并基于第一和第二信号产生原始转矩值的控制系统。控制系统还被配置为基于原始转矩值确定输出转矩值，并将输出转矩值发送到变速器以控制变速器。

8. 发明申请

US20070284170A1 Retarding control for hydromechanical drive machine 审中-公开
标题翻译：液压机械驱动机械的控制
公开(公告)号：US20070284170A1
公开(公告)日：2007-12-13
申请号：US11451767
申请日：2006-06-13
申请人： Brian D. Kuras , Thomas M. Sopko , Frank A. DeMarco , Michael G. Cronin
发明人： Brian D. Kuras , Thomas M. Sopko , Frank A. DeMarco , Michael G. Cronin
IPC分类号： B60K25/10
CPC分类号： B60W30/18109 , B60W10/103 , B60W10/184 , B60W10/30 , B60W30/18136
摘要： A method of dissipating power in a propelled machine having a hydromechanical transmission includes converting undesired power to retarding power, and driving an engine with at least a portion of the retarding power prior to substantially dissipating power with any other power-dissipating device.
摘要翻译：在具有液压机械传动的推进机中耗散功率的方法包括将不期望的功率转换成延迟功率，并且在使用任何其它功率耗散装置基本上耗散功率之前，用至少一部分延迟功率驱动发动机。

9. 发明授权

US06424902B1 Method and apparatus for operating a continuously variable transmission in the torque limited region near zero output speed 失效
标题翻译：在零输出速度附近的转矩限制区域内操作无级变速器的方法和装置
公开(公告)号：US06424902B1
公开(公告)日：2002-07-23
申请号：US09699953
申请日：2000-10-30
申请人： Brian D. Kuras
发明人： Brian D. Kuras
IPC分类号： G06F700
CPC分类号： F16H61/472 , F16H47/04 , F16H61/433 , F16H61/46 , F16H2200/201
摘要： An apparatus for controlling a continuously variable transmission includes an input shaft driven by an engine, an output shaft, an operator input for generating speed commands and a controller operable to receive the speed commands and generate transmission ratio commands which control a ratio of a speed of the output shaft to a speed of the input shaft. Torque of the output shaft is limited in a torque limited region near zero speed of the output shaft and the transmission ratio command is modified in the torque limited region.
摘要翻译：用于控制无级变速器的装置包括由发动机驱动的输入轴，输出轴，用于产生速度指令的操作者输入和可操作以接收速度指令的控制器，并产生控制比例的传动比命令，输出轴到输入轴的转速。输出轴的扭矩在输出轴接近零速度的转矩限制区域受到限制，传动比指令在扭矩限制区域中被修改。

10. 发明授权

US08074451B2 Electric motor actuation of a hydrostatic pump 失效
标题翻译：液压泵的电动机驱动
公开(公告)号：US08074451B2
公开(公告)日：2011-12-13
申请号：US12131662
申请日：2008-06-02
申请人： Brian D. Kuras , Michael G. Cronin , Frank A. DeMarco , Mustafa Guven , Michael J. Barngrover
发明人： Brian D. Kuras , Michael G. Cronin , Frank A. DeMarco , Mustafa Guven , Michael J. Barngrover
IPC分类号： F16D31/02 , F01B3/02
CPC分类号： F16H63/062 , F16H39/00 , F16H61/425
摘要： A hydraulic motor system for improved frequency response includes a hydraulic variator having a pump and a motor, wherein the pump includes a variable angle swash plate, and the system further includes an electric actuator for controlling an angle or torque of the swash plate, thereby controlling the motor output characteristics. The electric actuator for controlling the variable angle swash plate may comprise a linear electric motor, ball screw drive or a rotary electric motor. In an example, the rotary electric motor tilts the swash plate by applying a torque to the swash plate at a point away from its tilt axis. In a further example, the rotary electric motor tilts the swash plate via a worm drive or ball screw drive.
摘要翻译：用于改善频率响应的液压马达系统包括具有泵和马达的液压变速器，其中所述泵包括可变角度斜盘，并且所述系统还包括用于控制所述斜盘的角度或扭矩的电致动器，由此控制电机输出特性。用于控制可变角度斜盘的电致动器可以包括线性电动机，滚珠丝杠驱动器或旋转电动机。在一个示例中，旋转电动机通过在远离其倾斜轴的点处向斜盘施加扭矩来倾斜斜盘。在另一个例子中，旋转电动机通过蜗杆传动或滚珠丝杠驱动来使旋转斜盘倾斜。

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