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公开(公告)号：US5471825A
公开(公告)日：1995-12-05
申请号：US264993
申请日：1994-06-24
CPC分类号： A01D41/141 , Y10S56/03 , Y10S56/15
摘要： An electronic control system for controlling the position of a combine harvesting head operable over a surface is disclosed herein. The position is normally controlled based upon the monitored position of the head. However, the position is controlled based upon the force or pressure at which the surface is supporting the implement if this force exceeds a predetermined limit. Thus, the system provides for float control override of position control. In particular, a hydraulic positioning assembly positions the head relative to the combine based upon control signals produced by a digital control circuit. The digital control circuit monitors digital signals representative of the head position and the force at which the surface is supporting the head, and compares these signals with digital setpoint data. Based upon the comparison, the control circuit produces control signals for causing the positioning assembly to raise or lower the harvesting head relative to the surface based upon force when the force limit is exceeded and based upon position when the force is below the force limit.
摘要翻译： 本文公开了一种用于控制在表面上可操作的联合收割头的位置的电子控制系统。 该位置通常基于头部的监视位置来控制。 然而，如果该力超过预定极限，则基于表面支撑工具的力或压力来控制位置。 因此，系统提供了位置控制的浮动控制超控。 特别地，液压定位组件基于由数字控制电路产生的控制信号来相对于组合定位头部。 数字控制电路监视表示头部位置和表面支撑头部的力的数字信号，并将这些信号与数字设定点数据进行比较。 基于比较，控制电路产生控制信号，使得定位组件在超过力极限时基于力，并且当力低于力极限时，基于位置使得收割头相对于表面升高或降低。
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公开(公告)号：US5471823A
公开(公告)日：1995-12-05
申请号：US265238
申请日：1994-06-24
CPC分类号： A01D41/141 , Y10S56/03 , Y10S56/15
摘要： An electronic control system for controlling the position of a combine harvesting head operable over a surface is disclosed herein. The position is controlled based upon the force or pressure at which the surface is supporting the implement. In particular, a hydraulic positioning assembly positions the head relative to the combine based upon control signals produced by a digital control circuit. The digital control circuit monitors digital signals representative of the force at which the surface is supporting the head, and compares these signals with digital setpoint data associated with a desired support force. Based upon the comparison, the control circuit produces control signals for causing the positioning assembly to raise or lower the harvesting head relative to the surface.
摘要翻译： 本文公开了一种用于控制在表面上可操作的联合收割头的位置的电子控制系统。 基于表面支撑工具的力或压力来控制位置。 特别地，液压定位组件基于由数字控制电路产生的控制信号来相对于组合定位头部。 数字控制电路监视代表表面支撑头部的力的数字信号，并将这些信号与与期望的支撑力相关联的数字设定点数据进行比较。 基于比较，控制电路产生用于使定位组件相对于表面升高或降低收获头的控制信号。
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公开(公告)号：US5455769A
公开(公告)日：1995-10-03
申请号：US265233
申请日：1994-06-24
CPC分类号： A01D41/145
摘要： A control system for controlling the height of a harvesting head on a combine is disclosed herein. The control system includes operator controlled signal generators which permit an operator to independently set the maximum velocity at which the harvesting head is raised and lowered. The signal generators are connected to the system controller which controls the operation of a hydraulic valve which controls hydraulic lift cylinders which raise and lower the harvesting head. The hydraulic valve is controlled with a pulse-width modulated signal. The width of the pulse is related to the direction the head is being moved (raised or lowered), and the maximum speed at which the head is to be moved. To reduce jerking upon initiation of head movement and termination of head movement, the controller determines acceleration and deceleration rates for head movement initiation and termination. The acceleration and deceleration determinations are based upon the signals produced by the signal generators.
摘要翻译： 本文公开了一种用于控制组合体上收获头的高度的控制系统。 控制系统包括操作员控制的信号发生器，其允许操作者独立地设定收割头升高和降低的最大速度。 信号发生器连接到控制液压阀的操作的系统控制器，该液压阀控制提升和降低收获头的液压提升缸。 液压阀由脉冲宽度调制信号控制。 脉冲的宽度与头部移动（升高或降低）的方向以及头部移动的最大速度有关。 为了减少头部移动开始和头部移动终止时的跳动，控制器确定头部移动启动和终止的加速和减速率。 加速和减速确定基于信号发生器产生的信号。
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公开(公告)号：US5473870A
公开(公告)日：1995-12-12
申请号：US265645
申请日：1994-06-24
CPC分类号： A01D41/141 , Y10S56/10 , Y10S56/15
摘要： Disclosed herein is a control system for controlling the position of the harvesting implement of an agricultural vehicle. The system includes transducers for monitoring the position of the implement relative to the vehicle, the location of the implement relative to the surface supporting the vehicle, and the force required to support the implement. The system also includes an implement positioning mechanism, a user interface for selecting position, location and force setpoints, and a controller coupled to the transducers, positioning mechanism and user-interface. Based upon the signals produced by the transducers and the setpoints set at the user-interface, the controller controls the positioning mechanism to position the implement.
摘要翻译： 本文公开了一种用于控制农用车辆的收割工具的位置的控制系统。 该系统包括用于监测工具相对于车辆的位置的传感器，工具相对于支撑车辆的表面的位置以及支撑工具所需的力。 该系统还包括工具定位机构，用于选择位置，位置和力设定点的用户界面以及耦合到换能器，定位机构和用户界面的控制器。 基于由换能器产生的信号和在用户界面处设置的设定点，控制器控制定位机构以定位工具。
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5.发明授权公开(公告)号：US06554742B2
公开(公告)日：2003-04-29
申请号：US09747487
申请日：2000-12-21
IPC分类号： F16H6104
CPC分类号： F16H61/08 , F16H59/14 , F16H59/52 , F16H61/061 , F16H2059/147 , F16H2061/0096 , F16H2061/026 , F16H2061/062 , F16H2302/06 , Y10T477/6937 , Y10T477/69387
摘要： An apparatus and method for controlling a plurality of clutches in a powershift transmission. The transmission is coupled to an engine of an off-road vehicle. The method includes receiving a shift command having a shift direction. Clutch timing is selected based on the shift direction. Using the selected shift timing, on-coming clutches are engaged in sequence with disengagement of off-going clutches to achieve smooth shifting.
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公开(公告)号：US06411880B1
公开(公告)日：2002-06-25
申请号：US09436579
申请日：1999-11-09
IPC分类号： G06F700
CPC分类号： F16H61/0248 , B60K17/344 , F16H61/0246 , F16H61/70 , F16H2059/006 , F16H2059/088 , F16H2061/0444
摘要： An electronic control system for a transmission in a work vehicle such as an agricultural tractor is provided herein. The system includes sensors for detecting the output speed of the vehicle engine, the output speed of the transmission and the vehicle ground speed. Command devices are available to the vehicle operator for generating command signals, such as for commanding the direction of movement, as well as forward and reverse gear ratios. A controller receives signals from the sensors and command devices, and controls engagement and disengagement of combinations of fluid clutches in the transmission to obtain desired gear ratios between the transmission input and output shafts. The system stores default forward and reverse gear ratios which are used upon start-up of the vehicle. To permit limited modification of the default gear ratios, an interface separate from the vehicle is provided to modify the default gear ratios.
摘要翻译： 本文提供了一种用于诸如农用拖拉机的工作车辆中的变速器的电子控制系统。 该系统包括用于检测车辆发动机的输出速度，变速器的输出速度和车辆地面速度的传感器。 指令装置可用于车辆操作者用于产生指令信号，例如用于指示运动方向，以及前进和后退传动比。 控制器从传感器和指令装置接收信号，并且控制传动装置中的流体离合器的组合的接合和分离，以获得传动输入轴和输出轴之间的期望的传动比。 系统存储车辆启动时使用的默认正向和反向传动比。 为了允许限制修改默认的传动比，提供了与车辆分离的接口以修改默认的传动比。
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公开(公告)号：US6023988A
公开(公告)日：2000-02-15
申请号：US131578
申请日：1998-08-10
IPC分类号： F16H59/14 , F16H61/06 , F16H61/684 , F16H61/70
CPC分类号： F16H61/061 , F16H2061/064 , F16H2342/04 , F16H2342/042 , F16H59/14 , F16H61/684 , F16H61/70 , Y10T477/69387 , Y10T74/1926
摘要： A method and system for calibrating at least one clutch in a transmission whereby the incipient engagement pressure of the fluid in the clutch may be determined. Two shafts in the transmission are locked together in mutually incompatible gear ratios thereby preventing their free relative rotation. The output of the clutch is connected to these shafts to prevent its free rotation. The input of the clutch is connected to the engine to cause it to rotate. The clutch is then gradually engaged as the load on the engine is monitored, preferably by measuring changes in the fuel flow rate to the engine. Once the engine load increases a predetermined amount, the system saves the particular valve command signal that produced the incipient engagement pressure and the process ends. The method is preferably performed entirely under microprocessor control, thereby eliminating the need for operator intervention during the process.
摘要翻译： 用于校准变速器中的至少一个离合器的方法和系统，由此可以确定离合器中的流体的初始接合压力。 传动装置中的两个轴以相互不相容的传动比锁定在一起，从而防止它们的自由相对旋转。 离合器的输出连接到这些轴，以防止其自由旋转。 离合器的输入连接到发动机以使其旋转。 随着监测发动机上的负荷，优选通过测量对发动机的燃料流量的变化，离合器逐渐接合。 一旦发动机负荷增加预定量，系统将节省产生初始接合压力的特定阀门命令信号，并且过程结束。 该方法优选完全在微处理器控制下执行，从而消除了在该过程期间操作员干预的需要。
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公开(公告)号：US5899950A
公开(公告)日：1999-05-04
申请号：US888754
申请日：1997-07-07
CPC分类号： G05B19/42 , G05B19/0426 , B60K23/04 , B60K23/08 , B60K25/00 , G05B2219/23423 , G05B2219/36401 , G05B2219/36482 , G05B2219/36492
摘要： A control system for controlling outputs associated with off-road vehicles is disclosed herein. The outputs are actuated by actuators in response to control signals generated by a control circuit. In a normal mode, the control circuit generates the control signals based upon command signals generated by operator-actuatable command devices, and applies the control signals to the actuators to control the outputs. In a record mode, the control circuit stores a sequence of commands in a memory circuit to record the sequential actuations of the command devices. Then, in a playback mode, the control circuit generates the control signals based upon the recorded command sequence instead of the command signals. Playback can be triggered manually by a playback switch, or automatically based upon the geo-graphic position of the off-road vehicle. The control system can record and playback more than one command sequence. Each sequence step generates a recorded command which can depend upon a recorded event based upon values of a timer, geographic position or feedback signal. In addition, the operator can erase, view and edit the commanded sequences. The operator can also download and upload command sequences.
摘要翻译： 本文公开了一种用于控制与越野车辆相关联的输出的控制系统。 响应于由控制电路产生的控制信号，致动器致动输出。 在正常模式中，控制电路基于由操作者可致命令装置产生的命令信号产生控制信号，并将控制信号施加到致动器以控制输出。 在记录模式中，控制电路将命令序列存储在存储器电路中以记录命令装置的顺序驱动。 然后，在重放模式中，控制电路基于记录的命令序列而不是命令信号来产生控制信号。 播放可以由播放开关手动触发，也可以根据越野车辆的地理位置自动进行。 控制系统可以记录和播放多个命令序列。 每个序列步骤基于定时器，地理位置或反馈信号的值产生可以依赖于记录的事件的记录命令。 此外，操作员可以擦除，查看和编辑命令的序列。 操作员还可以下载和上传命令序列。
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公开(公告)号：US5233525A
公开(公告)日：1993-08-03
申请号：US860235
申请日：1992-03-27
CPC分类号： F16H59/02 , F16H61/0248 , F16H2059/006 , F16H2059/0239 , F16H2059/082 , F16H2059/088 , Y10T477/6933
摘要： An improved electronic control system for a vehicle transmission system having a plurality of sequential gear ratios allows the vehicle operator to selectively engage either a normal sequential gear ratio progression or a gear ratio progression that skips or omits certain low gear ratios from the gear ratio shift sequence. The transmission control system includes a microprocessor driven electronic control circuit that governs the transmission operation by selectively actuating, from a plurality of hydraulic clutch solenoid valves, a unique combination of solenoid valves for each gear ratio. Manually operable control means allows the vehicle operator to cause the microprocessor to select a software routine that omits certain solenoid valve combinations so as to progress through the transmission gear ratios during upshifts in the forward control mode at a faster rate, thus improving the acceleration of the vehicle in the low gear ratio range.
摘要翻译： 用于具有多个顺序齿轮比的车辆传动系统的改进的电子控制系统允许车辆操作者选择性地接合正常顺序齿轮比进步或从齿轮比换档序列跳过或省略某些低传动比的齿轮比进展 。 变速器控制系统包括微处理器驱动的电子控制电路，其通过从多个液压离合器电磁阀选择性地致动用于每个传动比的电磁阀的独特组合来控制变速器操作。 手动操作的控制装置允许车辆操作者使得微处理器选择省略某些电磁阀组合的软件程序，以便以更快的速率在前进控制模式下在升档期间前进传动比，从而提高 车辆在低档比范围。
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公开(公告)号：US6151543A
公开(公告)日：2000-11-21
申请号：US232006
申请日：1999-01-14
CPC分类号： F16H61/0248 , B60K17/344 , F16H2059/006 , F16H2059/088 , F16H2061/0444 , F16H61/0246 , F16H61/70 , Y10T477/6407 , Y10T74/1926
摘要： An electronic control system for a transmission in a work vehicle such as an agricultural tractor is disclosed herein. The system includes sensors for detecting the output speed of the vehicle engine, the output speed of the transmission and the vehicle ground speed. Command devices are available to the vehicle operator for generating command signals, such as for commanding the direction of movement, as well as forward and reverse gear ratios. A controller receives signals from the sensors and command devices, and controls engagement and disengagement of combinations of fluid clutches in the transmission to obtain desired gear ratios between the transmission input and output shafts. The command devices include an input device for generating transmission command signals, and the controller responds by selectively engaging the clutches to shift the transmission at a predetermined shift rate. The controller determines a commanded gear ratio based at least in part on the transmission command signals. When the commanded gear ratio differs from the current gear ratio by more than a predetermined number of gear ratios, the controller accesses a table stored in a memory circuit to determine a skip shift value associated with the current gear ratio and selectively engages the clutches to skip shift from the current gear ratio to the commanded gear ratio by a number of gear ratios determined by the accessed skip shift value.
摘要翻译： 本文公开了一种用于诸如农用拖拉机的工作车辆中的变速器的电子控制系统。 该系统包括用于检测车辆发动机的输出速度，变速器的输出速度和车辆地面速度的传感器。 指令装置可用于车辆操作者用于产生指令信号，例如用于指示运动方向，以及前进和后退传动比。 控制器从传感器和指令装置接收信号，并且控制传动装置中的流体离合器的组合的接合和分离，以获得传动输入轴和输出轴之间的期望的传动比。 指令装置包括用于产生发送命令信号的输入装置，并且控制器通过选择性地接合离合器来以预定的换档速率移动变速器来进行响应。 所述控制器至少部分地基于所述发送命令信号来确定所命令的齿轮比。 当指令齿轮比与当前齿轮比不同的传动比与预定数量的齿轮比不同时，控制器访问存储在存储器电路中的表，以确定与当前齿轮比相关联的跳跃移位值，并选择性地接合离合器以跳过 由当前齿轮比转换到指令齿轮比乘以由所访问的跳跃移位值确定的齿轮比。
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