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1.发明授权公开(公告)号：US07856951B2
公开(公告)日：2010-12-28
申请号：US11922835
申请日：2006-07-06
IPC分类号： F01P7/10
摘要： An invention relating to a control apparatus and a control method for a hydraulically driven cooling fan for reducing the peak pressure produced upon reversing the switch position of a switching valve, without stopping an engine, and without greatly modifying existing hydraulic circuitry or increasing the apparatus cost. In the invention, in the case that a reversing switch has been operated so as to output a reversal processing commencement instruction signal, control is carried out such that, under the condition that the rotational speed of the engine has decreased to not more than a stipulated rotational speed, capacity adjusting means is controlled, so as to reduce the capacity of a hydraulic pump, and thus reduce the fan rotational speed, and then the switch position of the switching valve is reversed.
摘要翻译： 一种用于液压驱动的冷却风扇的控制装置和控制方法的发明，用于在不停止发动机的情况下减少在切换阀的开关位置反转时产生的峰值压力，并且不会大大改变现有的液压回路或增加设备成本 。 在本发明中，在反转开关被操作以输出反转处理开始指示信号的情况下，进行控制，使得在发动机的转速降低到规定值以下的条件下 旋转速度，容量调节装置被控制，以便降低液压泵的容量，从而降低风扇转速，然后切换阀的开关位置反转。
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公开(公告)号：US20090013810A1
公开(公告)日：2009-01-15
申请号：US12086706
申请日：2006-11-30
IPC分类号： F16H59/00
CPC分类号： B60W30/18036 , B60W10/02 , B60W10/184 , E02F9/2083 , F16D2500/3024 , F16D2500/3102 , F16D2500/3108 , F16D2500/31466 , F16D2500/50296 , F16H61/0246 , F16H2312/09 , Y10T74/19251
摘要： A device is provided which eliminates uncomfortable operation feeling, improves the working efficiency, and reduces thermal load on a clutch and transmission shock. It is determined whether the current travel direction of the vehicle body is a forward travel direction F or a reverse travel direction R based on an operation position selected by a travel operation lever, clutch oil pressure of the forward clutch or reverse clutch, and a detected vehicle body speed. Braking force of a brake device is controlled such that the brake device is activated on the conditions that the travel direction position selected by the travel operation lever and the travel direction determined by a travel direction flag are opposite to each other, and the detected vehicle body speed is equal to or greater than a predetermined threshold value.
摘要翻译： 提供了一种消除了不舒服的操作感觉，提高了工作效率并降低了离合器的热负荷和传输冲击的装置。 基于由行驶操作杆选择的操作位置，前进离合器或倒车离合器的离合器油压，以及检测到的行驶方向，确定车身的当前行驶方向是前进行驶方向F还是倒退行驶方向R 车身速度。 控制制动装置的制动力，使得制动装置在由行驶操作杆选择的行驶方向位置和由行驶方向标志确定的行进方向彼此相反的条件下被启动，并且检测到的车体 速度等于或大于预定阈值。
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3.发明申请公开(公告)号：US20090120386A1
公开(公告)日：2009-05-14
申请号：US11922835
申请日：2006-07-06
摘要： An invention relating to a control apparatus and a control method for a hydraulically driven cooling fan for reducing the peak pressure produced upon reversing the switch position of a switching valve, without stopping an engine, and without greatly modifying existing hydraulic circuitry or increasing the apparatus cost. In the invention, in the case that a reversing switch has been operated so as to output a reversal processing commencement instruction signal, control is carried out such that, under the condition that the rotational speed of the engine has decreased to not more than a stipulated rotational speed, capacity adjusting means is controlled, so as to reduce the capacity of a hydraulic pump, and thus reduce the fan rotational speed, and then the switch position of the switching valve is reversed.
摘要翻译： 一种用于液压驱动的冷却风扇的控制装置和控制方法的发明，用于在不停止发动机的情况下减小在切换阀的开关位置反转时产生的峰值压力，并且不会大大改变现有的液压回路或增加设备成本 。 在本发明中，在反转开关被操作以输出反转处理开始指示信号的情况下，进行控制，使得在发动机的转速降低到规定值以下的条件下 旋转速度，容量调节装置被控制，以便降低液压泵的容量，从而降低风扇转速，然后切换阀的开关位置反转。
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公开(公告)号：US20070016355A1
公开(公告)日：2007-01-18
申请号：US11480417
申请日：2006-07-05
申请人： Mitsuhiko Kamado , Shigeru Yamamoto
发明人： Mitsuhiko Kamado , Shigeru Yamamoto
CPC分类号： F02D41/1497 , E02F9/2246 , F02D11/105 , F02D2200/604 , F02D2250/18 , F02D2250/26
摘要： An engine control apparatus for a work vehicle having a cooling fan or an auxiliary device driven by an engine. The engine control apparatus is capable of operating the work vehicle with the importance placed either on amount of work or fuel economy depending on the situation, and preventing the input of excessive traveling horsepower (or working horsepower), regardless of a selected work mode, to ensure durability of the traveling power train (or work machine drive equipment). Upon selection of a work mode by the work mode selection switch, a controller controls the engine to obtain a power curve selected from those selectable for the selected work mode can be obtained, based on the coolant temperature range and the selected work mode, so that the input torque transmitted to the traveling power train does not surpass the upper limit for the input torque (rated output).
摘要翻译： 一种用于工作车辆的发动机控制装置，其具有由发动机驱动的冷却风扇或辅助装置。 发动机控制装置能够根据情况操作工作车辆的重要性，其重要性在于工作量或燃料经济性，并且不管选择的工作模式如何，防止输入过大的行驶功率（或工作马力）到 确保行驶传动系（或工作机械驱动设备）的耐用性。 在通过工作模式选择开关选择工作模式时，控制器控制发动机以获得从根据冷却剂温度范围和所选择的工作模式获得对于所选择的工作模式可选择的功率曲线，使得 传递到行驶传动系的输入转矩不超过输入转矩（额定输出）的上限。
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公开(公告)号：US06959671B2
公开(公告)日：2005-11-01
申请号：US10785532
申请日：2004-02-23
IPC分类号： E02F9/00 , B60K11/04 , E02F9/08 , E02F9/22 , F01P5/04 , F01P7/04 , F01P7/10 , F01P11/12 , F16D31/02
CPC分类号： E02F9/2292 , E02F9/0866 , E02F9/0875 , E02F9/2075 , E02F9/2235 , E02F9/226 , E02F9/2296 , F01P5/043 , F16D2300/021
摘要： A cooling system for use in a work machine is provided, in which an increase in the load imposed on a fan driving circuit and occurrence of abnormal noise can be prevented without fail by means of an inexpensive arrangement at the time of switching the rotating direction of a cooling fan. To this end, the cooling system comprises: (1) a variable displacement hydraulic pump driven by the engine; (2) a forwardly and reversely rotatable hydraulic motor operated by hydraulic oil supplied from the hydraulic pump; (3) a cooling fan driven by the hydraulic motor; (4) an electromagnetic selector valve for switching the rotating direction of the hydraulic motor between a forward direction and a reverse direction; (5) controlling means for controlling switching of the electromagnetic selector valve and controlling the hydraulic pump so as to minimize the discharge oil rate of the hydraulic pump during switching of the electromagnetic selector valve.
摘要翻译： 提供了一种用于作业机械的冷却系统，其中通过在切换旋转方向时的廉价布置，可以在不失败的情况下防止施加在风扇驱动电路上的负载的增加和异常噪声的发生 一个冷却风扇 为此，冷却系统包括：（1）由发动机驱动的可变排量液压泵; （2）由液压泵供应的液压油操作的向前和反向旋转的液压马达; （3）由液压马达驱动的冷却风扇; （4）用于在正向和反向之间切换液压马达的旋转方向的电磁选择阀; （5）用于控制电磁切换阀的切换和控制液压泵的控制装置，以便在切换电磁选择阀期间使液压泵的排出油量最小化。
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公开(公告)号：US20050183417A1
公开(公告)日：2005-08-25
申请号：US10785532
申请日：2004-02-23
IPC分类号： E02F9/00 , B60K11/04 , E02F9/08 , E02F9/22 , F01P5/04 , F01P7/04 , F01P7/10 , F01P11/12 , F16D31/02
CPC分类号： E02F9/2292 , E02F9/0866 , E02F9/0875 , E02F9/2075 , E02F9/2235 , E02F9/226 , E02F9/2296 , F01P5/043 , F16D2300/021
摘要： A cooling system for use in a work machine is provided, in which an increase in the load imposed on a fan driving circuit and occurrence of abnormal noise can be prevented without fail by means of an inexpensive arrangement at the time of switching the rotating direction of a cooling fan. To this end, the cooling system comprises: (1) a variable displacement hydraulic pump driven by the engine; (2) a forwardly and reversely rotatable hydraulic motor operated by hydraulic oil supplied from the hydraulic pump; (3) a cooling fan driven by the hydraulic motor; (4) an electromagnetic selector valve for switching the rotating direction of the hydraulic motor between a forward direction and a reverse direction; (5) controlling means for controlling switching of the electromagnetic selector valve and controlling the hydraulic pump so as to minimize the discharge oil rate of the hydraulic pump during switching of the electromagnetic selector valve.
摘要翻译： 提供了一种用于作业机械的冷却系统，其中通过在切换旋转方向时的廉价布置，可以在不失败的情况下防止施加在风扇驱动电路上的负载的增加和异常噪声的发生 一个冷却风扇 为此，冷却系统包括：（1）由发动机驱动的可变排量液压泵; （2）由液压泵供应的液压油操作的向前和反向旋转的液压马达; （3）由液压马达驱动的冷却风扇; （4）用于在正向和反向之间切换液压马达的旋转方向的电磁选择阀; （5）用于控制电磁切换阀的切换和控制液压泵的控制装置，以便在切换电磁选择阀期间使液压泵的排出油量最小化。
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公开(公告)号：US07946404B2
公开(公告)日：2011-05-24
申请号：US12086706
申请日：2006-11-30
CPC分类号： B60W30/18036 , B60W10/02 , B60W10/184 , E02F9/2083 , F16D2500/3024 , F16D2500/3102 , F16D2500/3108 , F16D2500/31466 , F16D2500/50296 , F16H61/0246 , F16H2312/09 , Y10T74/19251
摘要： A device for a work vehicle eliminates uncomfortable operation feeling, improves the working efficiency, and reduces thermal load on a clutch and transmission shock. It is determined whether the current travel direction of the vehicle body is a forward travel direction F or a reverse travel direction R based clutch oil pressure of the forward clutch or reverse clutch. Braking force of a brake device is controlled such that the brake device is activated on the conditions that the travel direction position selected by the travel operation lever and the travel direction determined by a travel direction flag are opposite to each other, and the detected vehicle body speed is equal to or greater than a predetermined threshold value.
摘要翻译： 用于工作车辆的装置消除了不舒服的操作感觉，提高了工作效率，并且减少了离合器的热负荷和传输冲击。 确定车体的当前行驶方向是前进离合器还是倒档离合器的前进行驶方向F或倒档行驶方向R的离合器油压。 控制制动装置的制动力，使得制动装置在由行驶操作杆选择的行驶方向位置和由行驶方向标志确定的行进方向彼此相反的条件下被启动，并且检测到的车体 速度等于或大于预定阈值。
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公开(公告)号：US07373239B2
公开(公告)日：2008-05-13
申请号：US11480417
申请日：2006-07-05
申请人： Mitsuhiko Kamado , Shigeru Yamamoto
发明人： Mitsuhiko Kamado , Shigeru Yamamoto
CPC分类号： F02D41/1497 , E02F9/2246 , F02D11/105 , F02D2200/604 , F02D2250/18 , F02D2250/26
摘要： An engine control apparatus for a work vehicle having a cooling fan or an auxiliary device driven by an engine. The engine control apparatus is capable of operating the work vehicle with the importance placed either on amount of work or fuel economy depending on the situation, and preventing the input of excessive traveling horsepower (or working horsepower), regardless of a selected work mode, to ensure durability of the traveling power train (or work machine drive equipment). Upon selection of a work mode by the work mode selection switch, a controller controls the engine to obtain a power curve selected from those selectable for the selected work mode can be obtained, based on the coolant temperature range and the selected work mode, so that the input torque transmitted to the traveling power train does not surpass the upper limit for the input torque (rated output).
摘要翻译： 一种用于工作车辆的发动机控制装置，其具有由发动机驱动的冷却风扇或辅助装置。 发动机控制装置能够根据情况操作工作车辆的重要性，其重要性在于工作量或燃料经济性，并且不管选择的工作模式如何，防止输入过大的行驶功率（或工作马力）到 确保行驶传动系（或工作机械驱动设备）的耐用性。 在通过工作模式选择开关选择工作模式时，控制器控制发动机以获得从根据冷却剂温度范围和所选择的工作模式获得对于所选择的工作模式可选择的功率曲线，使得 传递到行驶传动系的输入转矩不超过输入转矩（额定输出）的上限。
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公开(公告)号：US20130081836A1
公开(公告)日：2013-04-04
申请号：US13249806
申请日：2011-09-30
IPC分类号： E02F3/85
摘要： A bulldozer of the present invention includes a GPS receiver which is fixed to a vehicle body of the bulldozer, and angle obtaining part which stores a conversion table in which a combination of an angling cylinder length and a tilt cylinder length are matched with a combination of a blade angling angle and a blade tilting angle.
摘要翻译： 本发明的推土机包括：固定在推土机的车体上的GPS接收器;以及角度获取部，其存储将倾斜缸长度与倾斜缸长度的组合与 叶片倾角和叶片倾斜角度。
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公开(公告)号：US20120185141A1
公开(公告)日：2012-07-19
申请号：US13393922
申请日：2011-05-20
CPC分类号： F04B49/002 , E02F9/2066 , E02F9/2246 , E02F9/2292 , E02F9/264 , F04B49/065 , F04B2201/1202 , F04B2203/0207 , F15B2211/20546 , F15B2211/20576 , F15B2211/26
摘要： A control unit is configured to calculate a target absorption torque of a hydraulic pump at which the engine output torque and the absorption torque of the hydraulic pump match a target matching rotation speed of the engine. The control unit is configured to refer to command data, calculate a command current value corresponding to the target absorption torque, and output a command signal of the calculated value to a pump control device. The control unit is configured to calculate the absorption torque at calibration points at which there is an equilibrium state in which the output horsepower of the engine and the absorption horsepower of the hydraulic pump are matched. The control unit is configured to acquire calibration information including the calculated absorption torque and the command current value output to the pump control device in the equilibrium state, and calibrate the command data based on the calibration information.
摘要翻译： 控制单元被配置为计算液压泵的目标吸收转矩，其中发动机输出转矩和液压泵的吸收扭矩与发动机的目标匹配转速匹配。 控制单元被配置为参考命令数据，计算与目标吸收扭矩相对应的命令电流值，并将计算值的命令信号输出到泵控制装置。 控制单元被配置为计算在发动机的输出功率和液压泵的吸收功率匹配的平衡状态的校准点处的吸收转矩。 控制单元被配置为获取包括在平衡状态下输出到泵控制装置的计算吸收扭矩和指令电流值的校准信息，并且基于校准信息校准指令数据。
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