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1.发明授权Underspeed control system for a hydromechanical drive system and method of operating same 失效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
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。
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2.发明授权Method and apparatus for generating velocity commands for a continuously variable transmission 有权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
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。
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3.发明授权Method and apparatus for generating velocity commands in response to rapid changes in operator inputs 有权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
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。
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公开(公告)号：US06601013B2
公开(公告)日：2003-07-29
申请号：US09742467
申请日：2000-12-20
IPC分类号： G01G1903
CPC分类号： G01G23/3728 , G01G19/08
摘要： The present invention is configured to determine the weight of a payload of a mobile machine. When the machine is in motion, a force characteristic of the machine is compared with a force characteristic threshold, or range. The payload determination is based upon the force characteristic comparison, and the pressures sensed in at least one of the struts.
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5.发明授权Method and apparatus configured to perform viscosity compensation for a payload measurement system 失效配置为对有效载荷测量系统进行粘度补偿的方法和装置公开(公告)号：US06552279B1
公开(公告)日：2003-04-22
申请号：US09934825
申请日：2001-08-22
申请人： Kevin J. Lueschow , Dugan Um
发明人： Kevin J. Lueschow , Dugan Um
IPC分类号： G01G1900
摘要： The present invention provides a method and apparatus configured to perform viscosity compensation for a payload measurement system of a machine. The machine has at least one cylinder for elevating a payload carrier. The cylinder is connected to a fluid circuit having an actuating fluid. A plurality of pressure values of the actuating fluid are sensed during a lifting of a first payload. Then a plurality of pressure values of the actuating fluid are sensed during a lifting of a second payload. In addition a parameter indicative of the fluid viscosity associated with the first and second lift is established. A plurality of pressure values of the actuating fluid are sensed during a lifting of a third payload, and a parameter indicative of the viscosity of the actuating fluid associated with the third lift is established. A payload weight of the third payload is then determined in response to the viscosity indicative parameters, and the sensed plurality of actuating fluid pressure values.
摘要翻译： 本发明提供一种被配置为对机器的有效载荷测量系统执行粘度补偿的方法和装置。 该机器具有至少一个用于提升有效载荷的气缸。 气缸连接到具有致动流体的流体回路。 在提升第一有效载荷期间感测到致动流体的多个压力值。 然后在提升第二有效载荷期间感测到致动流体的多个压力值。 此外，建立了指示与第一和第二升力相关联的流体粘度的参数。 在提升第三有效载荷期间感测到致动流体的多个压力值，并且建立指示与第三升降机相关联的致动流体的粘度的参数。 然后响应于粘度指示参数和感测到的多个致动流体压力值来确定第三有效载荷的有效载荷重量。
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公开(公告)号：US07418331B2
公开(公告)日：2008-08-26
申请号：US10868074
申请日：2004-06-15
申请人： Kevin J. Lueschow
发明人： Kevin J. Lueschow
IPC分类号： G06F11/00
CPC分类号： B60G17/016 , B60G17/0185 , B60G17/04 , B60G2800/802
摘要： Operating a vehicle with a faulty strut can cause serious consequences. The present disclosure includes a method of detecting a fault within a strut during operation of a vehicle. Pressure within the strut is sensed, and a magnitude of asymmetry within a plurality of the sensed pressures is determined. A faulty strut (e.g. overcharged or collapsed) is indicated when the magnitude of asymmetry is outside of a predetermined range of asymmetry.
摘要翻译： 操作具有错误支柱的车辆可能会导致严重的后果。 本公开内容包括在车辆操作期间检测支柱内的故障的方法。 感测支柱内的压力，并且确定多个感测压力内的不对称的大小。 当不对称性的大小超出预定的不对称范围时，指示有错的支柱（例如，过度充电或折叠）。
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公开(公告)号：US06839638B2
公开(公告)日：2005-01-04
申请号：US10305410
申请日：2002-11-26
摘要： A method and apparatus is provided for calibrating a payload monitor of a work machine. Altering the load carrying body of a work machine can adversely impact the accuracy of a payload monitor. The present invention provides a calibrating technique using an alternate coefficient that is programmed into the payload monitor. The alternate coefficient is then used by the payload monitor.
摘要翻译： 提供了一种用于校准作业机器的有效载荷监视器的方法和装置。 改变作业机械的载重体会不利地影响有效载荷监视器的精度。 本发明提供使用被编程到有效载荷监视器中的替代系数的校准技术。 然后，有效载荷监视器使用替代系数。
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公开(公告)号：US5462125A
公开(公告)日：1995-10-31
申请号：US125439
申请日：1993-09-22
CPC分类号： E02F3/845
摘要： An off-highway vehicle having an earth moving implement has a tilt function associated with the implement. For example, a bulldozer has a tilt function associated with the bulldozer blade. The vehicle has a processor adapted to receive a position signal from a position sensor associated with the tilt function of the implement. The operator engages a switch to activate an automatic tilt function. A selector switch is provided so that the operator can select between a plurality of pre-set blade angles. The selector switch outputs a target position signal associated with a pre-set angle to the processor. The processor automatically calculates a command signal for the tilt function based on the difference between the position signal and the target position signal. The processor issues the command signal to the tilt function causing the tilt function to move the implement to the pre-set angle associated with the switch position.
摘要翻译： 具有地球移动工具的非公路车辆具有与工具相关联的倾斜功能。 例如，推土机具有与推土机叶片相关联的倾斜功能。 车辆具有适于从与工具的倾斜功能相关联的位置传感器接收位置信号的处理器。 操作员接合开关以激活自动倾斜功能。 提供选择器开关，使得操作者可以在多个预定叶片角度之间进行选择。 选择器开关将与预设角度相关联的目标位置信号输出到处理器。 处理器根据位置信号与目标位置信号之差自动计算倾斜功能的指令信号。 处理器向倾斜功能发出命令信号，导致倾斜功能将工具移动到与开关位置相关联的预设角度。
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9.发明授权Method and apparatus for performing temperature compensation for a payload measurement system 失效用于对有效载荷测量系统进行温度补偿的方法和装置公开(公告)号：US07480579B2
公开(公告)日：2009-01-20
申请号：US11315770
申请日：2005-12-22
申请人： Kevin J. Lueschow , Jody M. Drake
发明人： Kevin J. Lueschow , Jody M. Drake
摘要： The present invention provides a method and apparatus configured to perform relative load compensation for a payload measurement system of a machine. The machine has at least one cylinder for elevating a payload carrier. The cylinder is connected to a fluid circuit having an actuating fluid. The payload measurement system is calibrated. Then a load of unknown weight is lifted. To determine the weight of this load, the system determines an uncompensated payload weight as a function of sensed pressure values of the actuating fluid. Temperature of the actuating fluid is sensed at the time of calibration and at a time of lift and the difference is scaled. A payload weight is determined as a function of the scaled temperature and the uncompensated payload weight.
摘要翻译： 本发明提供一种被配置为对机器的有效载荷测量系统执行相对负载补偿的方法和装置。 该机器具有至少一个用于提升有效载荷的气缸。 气缸连接到具有致动流体的流体回路。 有效载荷测量系统被校准。 然后解除重量不明的负载。 为了确定该负载的重量，系统根据感测到的致动流体的压力值确定未补偿的有效载荷重量。 在校准时和提升时检测致动流体的温度，并且将差值缩放。 有效载荷重量根据缩放的温度和未补偿的有效载荷重量确定。
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公开(公告)号：US07082375B2
公开(公告)日：2006-07-25
申请号：US10950499
申请日：2004-09-28
申请人： Kevin J. Lueschow
发明人： Kevin J. Lueschow
IPC分类号： G01G23/01
CPC分类号： G01G19/083 , E02F9/24 , E02F9/26 , E02F9/264
摘要： A system for validating a payload weight measurement for a machine includes a pressure sensor configured to generate a pressure signal indicative of an actuating fluid pressure associated with a fluid cylinder operatively coupled to a work implement of the machine. An extension sensor is configured to generate an extension signal indicative of an extension of the fluid cylinder. The system also includes a controller configured to monitor the pressure signal and the extension signal to determine a plurality of actuating fluid pressure values and corresponding extension values associated with the fluid cylinder while lifting a payload of unknown weight with the work implement. The controller is also configured to compare the plurality of actuating fluid pressure values and the corresponding extension values to at least one predetermined pressure versus extension curve and to determine whether an accurate weight value may be assigned to the payload based on the comparison of the plurality of actuating fluid pressure values and the corresponding extension values to the at least one predetermined pressure versus extension curve.
摘要翻译： 用于验证机器的有效载荷重量测量的系统包括压力传感器，其被配置为产生指示与可操作地耦合到机器的工作装置的流体缸相关联的致动流体压力的压力信号。 扩展传感器被配置为产生指示流体缸延伸的延伸信号。 该系统还包括控制器，该控制器被配置为监测压力信号和延伸信号，以确定多个致动流体压力值和与流体缸相关联的对应的延伸值，同时用工作装置提升未知重量的有效载荷。 控制器还被配置为将多个致动流体压力值和相应的延伸值比较为至少一个预定的压力对延伸曲线，并且基于多个的对比来确定是否可以将精确的权重值分配给有效载荷 致动流体压力值和相应的延伸值至至少一个预定压力对延伸曲线。
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