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公开(公告)号：US20110202243A1
公开(公告)日：2011-08-18
申请号：US13124945
申请日：2009-09-28
IPC分类号： F16H59/00
CPC分类号： F16H61/4008 , B60W10/06 , B60W10/11 , E02F9/202 , E02F9/2253 , F04B27/08 , F04B49/24 , F16H59/06 , F16H59/44 , F16H59/46 , F16H61/0213 , F16H61/061 , F16H61/40 , F16H61/421 , F16H61/431 , F16H61/47 , F16H2059/366 , F16H2059/6861 , F17D1/08 , Y10T477/679 , Y10T477/68
摘要： A control device controls a hydrostatic transmission vehicle having a hydrostatic transmission with a variable displacement pump and a variable displacement hydraulic motor. The control device is configured to set a set vehicle speed based on a forward/rearward travel command and a gear stage command instructed by an operator, to set an upper limit of the engine speed with respect to the set vehicle speed for limiting the upper limit of the engine speed to a predetermined partial engine speed set to be lower than a high idle engine speed when the set vehicle speed is in a preliminarily set low and intermediate speed range, and to control respective displacements of the variable displacement pump and the variable displacement hydraulic motor based on the set vehicle speed for allowing a vehicle speed to reach the set vehicle speed even when the engine is rotated at the partial engine speed.
摘要翻译： 控制装置控制具有变排量泵和可变排量液压马达的静液压变速器的液压传动车辆。 控制装置被构造成基于前/后行驶指令和操作者指示的档位指令来设定设定的车速，以相对于设定的车速来设定发动机转速的上限，以限制上限 的发动机转速设定为设定为低于高空转发动机转速时的预定部分发动机转速，当所设定的车速处于预先设定的低和中速范围内时，并且控制可变排量泵和可变排量的各个位移 液压马达基于设定的车速，即使当发动机以部分发动机转速旋转时，也可以使车速达到设定的车速。
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公开(公告)号：US20110196585A1
公开(公告)日：2011-08-11
申请号：US13124976
申请日：2009-09-28
IPC分类号： F16H61/4008 , B62D11/02
CPC分类号： F16H61/4008 , B60W10/06 , B60W10/11 , E02F9/202 , E02F9/2253 , F04B27/08 , F04B49/24 , F16H59/06 , F16H59/44 , F16H59/46 , F16H61/0213 , F16H61/061 , F16H61/40 , F16H61/421 , F16H61/431 , F16H61/47 , F16H2059/366 , F16H2059/6861 , F17D1/08 , Y10T477/679 , Y10T477/68
摘要： A control device controls a hydrostatic transmission vehicle having a hydrostatic transmission including a variable displacement pump and a variable displacement hydraulic motor. The control device is configured to set a set vehicle speed based on a forward/rearward travel command and a gear stage command instructed by an operator, to set a torque limit usable for the hydrostatic transmission based on an engine speed, to set a vehicle speed limit based on a pressure in the hydraulic circuit and the torque limit, to select a lower one of the set vehicle speed and the vehicle speed limit, and to control respective displacements of the variable displacement pump and the variable displacement hydraulic motor based on the selected vehicle speed.
摘要翻译： 控制装置控制具有包括可变排量泵和可变排量液压马达的静液压传动装置的液压传动车辆。 控制装置被配置为基于前进/后退行驶指令和操作者指示的档位指令来设定设定的车速，以基于发动机转速设定可用于静液压变速器的转矩限制，以设定车速 基于液压回路中的压力和转矩极限的极限，选择设定车速和车速极限中的较低的一个，并且基于所选择的控制来控制可变排量泵和可变排量液压马达的各个位移 车速。
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公开(公告)号：US08725364B2
公开(公告)日：2014-05-13
申请号：US13124976
申请日：2009-09-28
CPC分类号： F16H61/4008 , B60W10/06 , B60W10/11 , E02F9/202 , E02F9/2253 , F04B27/08 , F04B49/24 , F16H59/06 , F16H59/44 , F16H59/46 , F16H61/0213 , F16H61/061 , F16H61/40 , F16H61/421 , F16H61/431 , F16H61/47 , F16H2059/366 , F16H2059/6861 , F17D1/08 , Y10T477/679 , Y10T477/68
摘要： A control device controls a hydrostatic transmission vehicle having a hydrostatic transmission including a variable displacement pump and a variable displacement hydraulic motor. The control device is configured to set a set vehicle speed based on a forward/rearward travel command and a gear stage command instructed by an operator, to set a torque limit usable for the hydrostatic transmission based on an engine speed, to set a vehicle speed limit based on a pressure in the hydraulic circuit and the torque limit, to select a lower one of the set vehicle speed and the vehicle speed limit, and to control respective displacements of the variable displacement pump and the variable displacement hydraulic motor based on the selected vehicle speed.
摘要翻译： 控制装置控制具有包括可变排量泵和可变排量液压马达的静液压传动装置的液压传动车辆。 控制装置被配置为基于前进/后退行驶指令和操作者指示的档位指令来设定设定的车速，以基于发动机转速设定可用于静液压变速器的转矩限制，以设定车速 基于液压回路中的压力和转矩极限的极限，选择设定车速和车速极限中的较低的一个，并且基于所选择的控制来控制可变排量泵和可变排量液压马达的各个位移 车速。
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公开(公告)号：US08532888B2
公开(公告)日：2013-09-10
申请号：US13124945
申请日：2009-09-28
CPC分类号： F16H61/4008 , B60W10/06 , B60W10/11 , E02F9/202 , E02F9/2253 , F04B27/08 , F04B49/24 , F16H59/06 , F16H59/44 , F16H59/46 , F16H61/0213 , F16H61/061 , F16H61/40 , F16H61/421 , F16H61/431 , F16H61/47 , F16H2059/366 , F16H2059/6861 , F17D1/08 , Y10T477/679 , Y10T477/68
摘要： A control device controls a hydrostatic transmission vehicle having a hydrostatic transmission with a variable displacement pump and a variable displacement hydraulic motor. The control device is configured to set a set vehicle speed based on a forward/rearward travel command and a gear stage command instructed by an operator, to set an upper limit of the engine speed with respect to the set vehicle speed for limiting the upper limit of the engine speed to a predetermined partial engine speed set to be lower than a high idle engine speed when the set vehicle speed is in a preliminarily set low and intermediate speed range, and to control respective displacements of the variable displacement pump and the variable displacement hydraulic motor based on the set vehicle speed for allowing a vehicle speed to reach the set vehicle speed even when the engine is rotated at the partial engine speed.
摘要翻译： 控制装置控制具有变排量泵和可变排量液压马达的静液压变速器的液压传动车辆。 控制装置被构造成基于前/后行驶指令和操作者指示的档位指令来设定设定的车速，以相对于设定的车速来设定发动机转速的上限，以限制上限 的发动机转速设定为设定为低于高空转发动机转速时的预定部分发动机转速，当所设定的车速处于预先设定的低和中速范围内时，并且控制可变排量泵和可变排量的各个位移 液压马达基于设定的车速，即使当发动机以部分发动机转速旋转时，也可以使车速达到设定的车速。
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5.发明授权Traveling control device and traveling control program for work vehicle or control device and control program for work vehicle 有权作业车辆或控制装置的行驶控制装置和行驶控制程序以及工作车辆的控制程序公开(公告)号：US07818110B2
公开(公告)日：2010-10-19
申请号：US10594279
申请日：2005-03-28
申请人： Eiji Ishibashi , Yoshitaka Onodera , Hidehiro Hashimoto , Yoshiyuki Hirosawa , Toshihiko Fukasawa , Yutaka Sugimoto
发明人： Eiji Ishibashi , Yoshitaka Onodera , Hidehiro Hashimoto , Yoshiyuki Hirosawa , Toshihiko Fukasawa , Yutaka Sugimoto
IPC分类号： B62D61/00
CPC分类号： B62D11/183 , B62D11/003 , B62D11/04
摘要： A traveling control device and a traveling control program for a work vehicle in which a change in a control quantity due to an effect of vehicle body vibrations is small, fixing the desired control quantity is possible, and the control quantity can be matched with the operator's feel. A travel control program in which a first line on which the speed ratio reduces corresponding to a change in the operation stroke, a second line having hysteresis with respect to the first line and on which the speed ratio increases corresponding to a change in the operation stroke, and third lines on which the speed ratio changes corresponding to the change in the operation stroke and the change in speed ratio with respect to the change in the operation stroke is smaller than that of the first and the second line are set is installed in the control device.
摘要翻译： 一种用于工作车辆的行驶控制装置和行驶控制程序，其中由于车身振动的影响而导致的控制量的变化小，可以固定期望的控制量，并且控制量可以与操作者的 感觉。 一个行驶控制程序，其中速度比对应于操作行程的变化而减小的第一行，相对于第一行具有滞后的第二行，并且速度比随着操作行程的变化而增加 ，并且其中相对于操作行程的变化而变化的速比变化的第三行和相对于操作行程的变化的速度比的变化小于设置在第一和第二行的速度比的第三行被安装在 控制装置
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公开(公告)号：US20070198158A1
公开(公告)日：2007-08-23
申请号：US10594279
申请日：2005-03-28
申请人： Eiji Ishibashi , Yoshitaka Onodera , Hidehiro Hashimoto , Yoshiyuki Hirosawa , Toshihiko Fukasawa , Yutaka Sugimoto
发明人： Eiji Ishibashi , Yoshitaka Onodera , Hidehiro Hashimoto , Yoshiyuki Hirosawa , Toshihiko Fukasawa , Yutaka Sugimoto
CPC分类号： B62D11/183 , B62D11/003 , B62D11/04
摘要： Even when an operation device with a short operation stroke range is adopted, so that a change in a control quantity (speed ratio) due to an effect of vehicle body vibrations or similar is small and it is possible to fix the desired control quantity (speed ratio), and moreover the control quantity (speed ratio) can be obtained in accordance with the operator's feel when carrying out fine adjustments by increasing and decreasing an operation stroke. A controller 20 calculates the speed ratio in accordance with a relationship L1 shown in FIG. 3, and controls the speed ratio. A travel control program in which the following are set and that carries out the calculation is installed in the controller 20. 1) A first line L11 on which the speed ratio reduces corresponding to a change in the operation stroke, a second line L12 that has hysteresis with respect to the first line L11 and on which the speed ratio increases corresponding to a change in the operation stroke, and third lines L131, L132, L133, L134 on which the speed ratio changes corresponding to the change in the operation stroke and the change in speed ratio with respect to the change in the operation stroke is smaller than that of the first line L11 and that of the second line L12 are set, 2) when the operation device 21 is operated from a point on the first line L11 in a direction that the speed ratio decreases, the speed ratio is calculated in accordance with the first line L11, 3) when the operation device 21 is operated from a point on the second line L12 in a direction that the speed ratio increases, the speed ratio is calculated in accordance with the second line L12, and 4) when the operation device 21 is operated from a point on the first line L11 in a direction that the speed ratio increases, or when the operation device 21 is operated from a point on the second line L12 in a direction that the speed ratio decreases, the speed ratio is calculated in accordance with the third lines L131, L132, L133, L134.
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公开(公告)号：US08996259B2
公开(公告)日：2015-03-31
申请号：US13643236
申请日：2011-07-28
CPC分类号： B66F9/075 , B66F9/082 , B66F9/205 , B66F9/22 , F02D29/04 , F02D31/009 , F02D41/021
摘要： An engine control device for a forklift that suppresses an increase in fuel consumption amount and noise by limiting an engine rotation speed when the forklift is driven without the need to increase the engine speed according to the accelerator operation even when the accelerator is depressed hard. Determining means in a controller determines whether all of the following conditions are satisfied: a neutral position of the traveling direction instructing means; a lift raising switch and first, second and third attachment switches are turned off. When all of the above conditions are satisfied, it is determined whether the forklift is driven in any of a plurality of states. An engine control means generates and outputs a control command to obtain the engine speed based on the accelerator pedal depression with the upper limit value of the engine speed set as an upper limit value of the engine speed.
摘要翻译： 一种用于铲车的发动机控制装置，其通过在铲车被驱动时通过限制发动机转速来抑制燃料消耗量和噪声的增加，而不需要根据加速器操作来增加发动机转速，即使当加速器被硬化时。 控制器中的确定装置确定是否满足以下所有条件：行驶方向指示装置的中立位置; 提升提升开关和第一，第二和第三附件开关被关闭。 当满足上述所有条件时，确定叉车是否以多种状态中的任何一种状态被驱动。 发动机控制装置产生并输出控制命令，以将发动机转速的上限值设定为发动机转速的上限值，基于加速器踏板下压获得发动机转速。
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公开(公告)号：US20130073152A1
公开(公告)日：2013-03-21
申请号：US13640247
申请日：2011-09-13
IPC分类号： G06F17/00
CPC分类号： G06F17/00 , B66F9/07572 , B66F9/20 , B66F17/003 , F02D29/00
摘要： A control device of a forklift engine that secures operability by keeping down fuel consumption when the accelerator pedal is floored in an unloaded or lightly loaded state, and once a heavy cargo is loaded, by lifting the cargo at a maximum lifting speed and traveling with maximum travel performance without acceleration problems. At least two maximum torque curves of different magnitudes are set in advance on a torque curve diagram. Then, the weight the cargo loaded on an attachment is measured. A threshold value for selecting at least two maximum torque curves is determined. If the measured weight is less than the threshold value, the maximum torque curve with a smaller maximum torque value is selected. If the measured weight is not less than the threshold value, the maximum torque curve with a larger maximum torque value is selected. The engine is controlled using the selected maximum torque curve.
摘要翻译： 一种叉车发动机的控制装置，其通过在油门踏板处于无负载或轻载状态时降低燃料消耗来确保可操作性，并且一旦重载货物通过以最大提升速度提升货物并以最大速度行驶 旅行表现无加速问题。 预先在扭矩曲线图上设定不同大小的两个最大扭矩曲线。 然后，测量装载在附件上的货物的重量。 确定用于选择至少两个最大扭矩曲线的阈值。 如果测量重量小于阈值，则选择具有较小最大扭矩值的最大扭矩曲线。 如果测量重量不小于阈值，则选择具有较大最大扭矩值的最大扭矩曲线。 使用所选择的最大扭矩曲线控制发动机。
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公开(公告)号：US08447477B2
公开(公告)日：2013-05-21
申请号：US13640247
申请日：2011-09-13
IPC分类号： G06F7/70
CPC分类号： G06F17/00 , B66F9/07572 , B66F9/20 , B66F17/003 , F02D29/00
摘要： A control device of a forklift engine that secures operability by keeping down fuel consumption when the accelerator pedal is floored in an unloaded or lightly loaded state, and once a heavy cargo is loaded, by lifting the cargo at a maximum lifting speed and traveling with maximum travel performance without acceleration problems. At least two maximum torque curves of different magnitudes are set in advance on a torque curve diagram. Then, the weight the cargo loaded on an attachment is measured. A threshold value for selecting at least two maximum torque curves is determined. If the measured weight is less than the threshold value, the maximum torque curve with a smaller maximum torque value is selected. If the measured weight is not less than the threshold value, the maximum torque curve with a larger maximum torque value is selected. The engine is controlled using the selected maximum torque curve.
摘要翻译： 一种叉车发动机的控制装置，其通过在油门踏板处于无负载或轻载状态时降低燃料消耗来确保可操作性，并且一旦重载货物通过以最大提升速度提升货物并以最大速度行驶 旅行表现无加速问题。 预先在扭矩曲线图上设定不同大小的两个最大扭矩曲线。 然后，测量装载在附件上的货物的重量。 确定用于选择至少两个最大扭矩曲线的阈值。 如果测量重量小于阈值，则选择具有较小最大扭矩值的最大扭矩曲线。 如果测量重量不小于阈值，则选择具有较大最大扭矩值的最大扭矩曲线。 使用所选择的最大扭矩曲线控制发动机。
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公开(公告)号：US20130218428A1
公开(公告)日：2013-08-22
申请号：US13640604
申请日：2011-09-09
IPC分类号： B60W10/06 , B60W10/103
CPC分类号： B60W10/06 , B60W10/103 , B60W2510/1085 , B60Y2200/62 , F16H61/4157 , F16H61/421 , F16H61/431 , F16H61/465 , F16H2059/366 , F16H2059/6861 , Y02T10/76
摘要： In an engine-overrun-preventing control device, if an engine speed exceeds a maximum speed, a minimum value of an inching rate is set such that higher the actual engine speed results in a higher minimum value of an inching rate. The hydraulic pump displacement is adjusted to obtain a higher inching rate between the minimum value of the inching rate and an inching rate set based on a brake stroke. If the engine speed exceeds a commanded speed and a pressure time-rate-of-change at the pump intake exceeds a prescribed value, the minimum value of the inching rate is set such that the higher the pressure time-rate-of-change, the higher the minimum value of the inching rate. The pump displacement is adjusted to obtain a higher inching rate between the minimum value of the inching rate set based on the pressure time-rate-of-change and the inching rate set based on the brake stroke.
摘要翻译： 在发动机溢出防止控制装置中，如果发动机转速超过最大转速，则设定微小速度的最小值，使得实际发动机转速提高，起动速度的最小值越高。 液压泵的排量被调节以获得在微小速率的最小值和基于制动行程设定的微动速率之间较高的起动率。 如果发动机转速超过指令速度并且泵吸入口处的压力时间变化率超过规定值，则将初始化速度的最小值设定为使得压力时间变化率越高， 微调速率的最小值越高。 调节泵的位移，以便根据压力时间变化率和基于制动行程设定的微动速度设定的微动速度的最小值之间的较高的起动速度。
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