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1. 发明授权

US4606313A Method of and system for controlling hydraulic power system 失效
标题翻译：液压动力系统控制方法及系统
公开(公告)号：US4606313A
公开(公告)日：1986-08-19
申请号：US387884
申请日：1982-06-09
申请人： Eiki Izumi , Hiroshi Watanabe , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
发明人： Eiki Izumi , Hiroshi Watanabe , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
IPC分类号： F02D29/04 , B60W10/06 , B60W10/10 , B60W30/18 , E02F9/22 , F02D41/38 , F04B49/00 , F16H61/42 , F16H61/46 , F16H61/465 , F02M39/00
CPC分类号： B60W10/103 , B60W10/06 , B60W30/1882 , E02F9/2235 , E02F9/2246 , E02F9/2296 , F02D29/04 , F02D41/38 , F16H61/465 , B60W2710/0644 , F02D2200/0602 , F02D2250/18 , F02D2250/31 , F16H61/42
摘要： A method of and system for controlling a hydraulic power system comprising an internal combustion engine receiving a supply of fuel from a fuel injection pump, and at least one variable displacement hydraulic pump driven by the internal combustion engine. An engine speed deviation is obtained from the difference between a target speed set by an accelerator operation of the internal combustion engine and an output speed thereof. Then a fuel injection target value in predetermined functional relation to the engine speed deviation, is obtained based on at least the engine speed deviation, and a fuel injection rate of the fuel injection pump is controlled based on the fuel injection target value. At the same time, a displacement volume target value of the hydraulic pump is determined based on at least the engine speed deviation and an actual discharge pressure of the hydraulic pump in such a manner that as the engine speed deviation increases an input torque of the hydraulic pump decreases, and the displacement volume of the hydraulic pump is controlled based on the displacement volume target value.
摘要翻译： PCT No.PCT / JP81 / 00270 Sec。 371日期1982年6月9日 102（e）1982年6月9日PCT PCT 1981年10月8日PCT公布。公开号WO82 / 01396 日期：1982年4月29日。一种用于控制液压动力系统的方法和系统，包括从燃料喷射泵接收燃料的内燃机，以及由内燃机驱动的至少一个可变排量液压泵。根据由内燃机的加速器操作设定的目标速度与其输出速度之间的差异，求出发动机转速偏差。然后，基于至少发动机转速偏差获得与发动机转速偏差相关的预定功能关系的燃料喷射目标值，并且基于燃料喷射目标值来控制燃料喷射泵的燃料喷射率。同时，至少基于液压泵的发动机转速偏差和实际排出压力来确定液压泵的排量体积目标值，使得随着发动机转速偏差增加液压泵的输入转矩泵减少，并且基于排量体积目标值来控制液压泵的排量。

2. 发明授权

US4587808A Control system for hydraulic circuit means 失效
标题翻译：液压回路装置控制系统
公开(公告)号：US4587808A
公开(公告)日：1986-05-13
申请号：US363454
申请日：1982-03-30
申请人： Hiroshi Watanabe , Eiki Izumi , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
发明人： Hiroshi Watanabe , Eiki Izumi , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
IPC分类号： F04B49/06 , F15B9/04 , F15B21/08 , G05D3/14 , F16D31/02
CPC分类号： G05D3/1445 , F04B49/06 , F15B21/087 , F15B9/04 , Y10S388/929 , Y10S60/911
摘要： A control system for a hydraulic circuit having a variable displacement hydraulic pump, and an actuator driven by the pump, in which a pump control controls a displacement volume varying member of the pump based on an operating signal giving a command with respect to the position thereof and a detector signal indicative of the actual position thereof while restricting the operating speed of the member to a level below a predetermined maximum speed. The control system has maximum speed setting device previously setting a first predetermined maximum speed and a second predetermined maximum speed higher than the first predetermined maximum speed for the operating speed of the variable displacement volume varying member and operative to select the first predetermined maximum speed when the direction of operation of the actuator commanded by the operating signal agrees with the actual direction of operation thereof, and select the second predetermined maximum speed when the position of the displacement volume varying member commanded by the operating signal is neutral or when the direction of operation of the actuator commanded by the operating signal is opposite to the actual direction of operation thereof. The pump control is constructed to effect the speed control of the displacement volume varying member based on the first or second predetermined maximum speed selected by the maximum speed setting device.
摘要翻译：一种用于具有可变排量液压泵的液压回路的控制系统和由泵驱动的致动器，其中泵控制器基于给出相对于其位置的命令的操作信号来控制泵的排量体积变化部件以及指示其实际位置的检测器信号，同时将构件的操作速度限制在低于预定最大速度的水平。所述控制系统具有预先为所述可变排量容积变化构件的操作速度设定高于所述第一预定最大速度的第一预定最大速度和第二预定最大速度的最大速度设定装置，并且当所述最大速度设定装置选择所述第一预定最大速度时，由操作信号指示的致动器的操作方向与其实际操作方向一致，并且当由操作信号指令的位移容积变化构件的位置为中性或当操作方向的操作时，选择第二预定最大速度由操作信号指令的致动器与实际操作方向相反。泵控制被构造为基于由最大速度设定装置选择的第一或第二预定最大速度来实现排量体积变化构件的速度控制。

3. 发明授权

US4586330A Control system for hydraulic circuit apparatus 失效
标题翻译：液压回路设备控制系统
公开(公告)号：US4586330A
公开(公告)日：1986-05-06
申请号：US401304
申请日：1982-07-23
申请人： Hiroshi Watanabe , Eiki Izumi , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
发明人： Hiroshi Watanabe , Eiki Izumi , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
IPC分类号： F15B11/16 , E02F9/20 , E02F9/22 , F15B11/17 , F15B21/08
CPC分类号： F15B11/17 , E02F9/2221 , E02F9/2296 , F15B21/087 , F15B2211/20546 , F15B2211/20561 , F15B2211/27 , F15B2211/30515 , F15B2211/30595 , F15B2211/6333 , F15B2211/6652 , F15B2211/6654 , F15B2211/71
摘要： A control system for a hydraulic circuit including at least first and second variable displacement volume type hydraulic pumps, at least first and second hydraulic actuators driven by the pumps, and valves for controlling hydraulic connections between the pumps and the actuators. The control system includes a device for deciding the order of priority of hydraulic connections between the first actuator and the first and second hydraulic pumps and the order of priority of hydraulic connections between the second pump and the first and second actuators. A first sensor is provided for sensing maximization of the displacement volume of the first pump, sensing that the displacement volume of the second pump has become substantially zero. A device decides target displacement volumes of the first and second pumps based on information supplied at least by the priority order deciding device and first and second sensor. When the flow rate of hydraulic fluid supplied to the first actuator is increased, the displacement volume of the second pump is increased from substantially zero after the displacement volume of the first pump is maximized. When the flow rate of hydraulic fluid supplied to the first actuator is reduced, the displacement volume of the first pump is reduced after the displacement volume of the second pump has become substantially zero.
摘要翻译：一种用于液压回路的控制系统，包括至少第一和第二可变容量型液压泵，由泵驱动的至少第一和第二液压致动器以及用于控制泵和致动器之间的液压连接的阀。控制系统包括用于确定第一致动器和第一和第二液压泵之间的液压连接的优先顺序的装置以及第二泵与第一和第二致动器之间的液压连接的优先顺序。提供第一传感器用于感测第一泵的排量的最大化，感测到第二泵的排量已经变得基本上为零。设备基于至少由优先顺序决定装置和第一和第二传感器提供的信息来确定第一和第二泵的目标排量。当提供给第一致动器的液压流体的流量增加时，在第一泵的移动容积最大化之后，第二泵的排出容积从基本上为零增加。当提供给第一致动器的液压流体的流量减小时，在第二泵的排量已经变为基本为零之后，第一泵的排出容积减小。

4. 发明授权

US4528813A Control system for hydrostatic power transmission 失效
标题翻译：静压力传动控制系统
公开(公告)号：US4528813A
公开(公告)日：1985-07-16
申请号：US290110
申请日：1981-08-05
申请人： Eiki Izumi , Hiroshi Watanabe , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
发明人： Eiki Izumi , Hiroshi Watanabe , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
IPC分类号： G05D16/00 , F16H61/40 , F16H61/431 , F16H39/46
CPC分类号： F16H61/431 , F16H2059/683 , F16H2059/6853 , F16H2059/6861
摘要： A control system for a hydrostatic power transmission having a variable displacement hydraulic pump (2) and a hydraulic actuator (3) connected in a closed or semi-closed circuit, wherein the displacement of the pump or the delivery thereby is adjustable in accordance with a manipulated variable of an operating lever (13). A control unit of the system (16) is operative to calculate a hydraulic pump displacement command (X) on the basis of a manipulated variable signal (X.sub.L) and circuit pressure signals (Pa, Pb) in such a manner that when the delivery side circuit pressure is higher than the suction side circuit pressure, the displacement is controlled to change in accordance with the manipulated variable while the rate of change in the displacement is controlled to change a maximum rate when the circuit pressure on the delivery side is below a pressure value that varies in dependence on the manipulated variable and is reduced once it is reached, while pump displacement is changed in response to the suction side circuit pressure, when it is higher than the delivery side pressure, in a similar manner except that a constant value is used instead of a value which varies in dependence on the manipulated variable.
摘要翻译：一种用于静液压动力传动的控制系统，其具有连接在闭合或半闭合回路中的可变排量液压泵（2）和液压致动器（3），其中泵或其输送的位移可根据操作杆（13）的操纵变量。系统（16）的控制单元可操作以基于操纵可变信号（XL）和电路压力信号（Pa，Pb）计算液压泵排量指令（X），使得当输送侧回路压力高于吸入侧回路压力，根据操作变量控制位移变化，同时当输送侧的回路压力低于压力时控制位移变化率以改变最大速率值根据操作变量而变化，并且一旦达到就减小，而泵位移响应于吸入侧回路压力而变化，当其高于输送侧压力时，除了使用恒定值而不是根据操纵变量而变化的值。

5. 发明授权

US4520626A Hydraulic drive system for single rod cylinder 失效
标题翻译：单杆缸液压驱动系统
公开(公告)号：US4520626A
公开(公告)日：1985-06-04
申请号：US337283
申请日：1982-01-05
申请人： Kichio Nakajima , Eiki Izumi , Hiroshi Watanabe , Yukio Aoyagi , Kazuo Honma
发明人： Kichio Nakajima , Eiki Izumi , Hiroshi Watanabe , Yukio Aoyagi , Kazuo Honma
IPC分类号： F15B11/00 , F15B7/10 , F15B11/08 , F16K11/07 , F16D31/02
CPC分类号： F15B7/10 , F15B2211/5059
摘要： A hydraulic drive system including a main line, a variable displacement hydraulic pump and another main line connected to a single rod cylinder in a closed hydraulic circuit, and a flushing valve having a first switching position in which one main line is communicated with a low pressure line and a second switching position in which the other main line is communicated with the low pressure line. The flushing valve is operative to maintain at least one of the two main lines in communication with the low pressure line at all times while moving from one switching position to the other switching position, to keep a lock-up phenomenon from taking place in the closed hydraulic circuit. The system further includes a pressure generating device for generating between the two main lines a pressure differential necessary for effecting switching of the flushing valve.
摘要翻译：一种液压驱动系统，包括主线，可变排量液压泵和在闭合液压回路中连接到单杆气缸的另一主线，以及具有第一切换位置的冲洗阀，其中一条主线与低压连通线路和第二切换位置，其中另一主线路与低压线路连通。冲洗阀可操作以在从一个切换位置移动到另一个切换位置时始终保持两条主线中的至少一条与低压管线连通，以保持闭合状态下的锁定现象液压回路。该系统还包括用于在两条主线之间产生用于实现冲洗阀切换所需的压力差的压力产生装置。

6. 发明授权

US4451893A Control method and control system for hydrostatic drive system 失效
标题翻译：静液压驱动系统控制方法及控制系统
公开(公告)号：US4451893A
公开(公告)日：1984-05-29
申请号：US311969
申请日：1981-10-16
申请人： Eiki Izumi , Hiroshi Watanabe , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
发明人： Eiki Izumi , Hiroshi Watanabe , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
IPC分类号： F16H61/40 , F16H61/4008 , F16H61/433 , G06F15/46
CPC分类号： F16H61/475 , F16H61/433 , F16H61/46
摘要： A control method and a control system for a hydrostatic drive system including a variable displacement hydraulic pump and a hydraulic actuator connected together to form a closed hydraulic fluid circuit. When the flow rate of the hydraulic pump is increased, the rate of change in the tilt of the hydraulic pump is controlled so that the discharge pressure does not exceed a first set of preset values with respect to the flow rate of the pump, meanwhile when the flow rate of the pump is reduced, the rate of change in the tilt of the hydraulic pump is controlled so that the suction pressure does not exceed a second set of preset values with respect to the flow rate of the pump.
摘要翻译：一种用于静液压驱动系统的控制方法和控制系统，包括可变排量液压泵和连接在一起的液压致动器，以形成闭合的液压流体回路。当液压泵的流量增加时，控制液压泵的倾斜变化率，使得排出压力相对于泵的流量不超过第一组预设值，同时当泵的流量减小，控制液压泵的倾斜变化率，使得吸入压力相对于泵的流量不超过第二组预设值。

7. 发明授权

US4395199A Control method of a system of internal combustion engine and hydraulic pump 失效
标题翻译：内燃机和液压泵系统的控制方法
公开(公告)号：US4395199A
公开(公告)日：1983-07-26
申请号：US276367
申请日：1981-06-15
申请人： Eiki Izumi , Hiroshi Watanabe , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
发明人： Eiki Izumi , Hiroshi Watanabe , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
IPC分类号： B60W10/06 , B60W30/18 , E02F9/22 , F02B63/06 , F02D29/04 , F02D41/24 , F02D45/00 , F02M31/04 , F04B49/00
CPC分类号： B60W10/06 , B60W10/04 , B60W10/103 , B60W30/18 , E02F9/2235 , E02F9/2246 , E02F9/2292 , E02F9/2296 , F02D29/04 , F02D41/24
摘要： A control method of a system for generating hydraulic power, the system including an internal combustion engine controlled by fuel injection from a fuel injection pump, and a plurality of hydraulic pumps of the variable displacement type. An engine speed deviation is obtained by calculating a difference between a target engine speed set by a manipulated variable of an accelerator for the internal combustion engine and an output engine speed of the engine. The engine speed deviation is converted into a pump control coefficient which is in a functional relation with this deviation. A calculation is performed with the converted value and an externally manipulated variable for inclination of a swash plate of the hydraulic pump, and the calculated value is supplied to a regulator of the hydraulic pump as a target value for inclination of the swash plate thereof to thereby control the inclination angle of the swash plate of the hydraulic pump. At the same time, the engine speed deviation is converted into a rack displacement target value which is a functional relation with this deviation, and the rack displacement of the fuel injection pump is adjusted by the converted value to thereby control the amount of fuel injection.
摘要翻译： PCT No.PCT / JP80 / 00247 Sec。 371日期：1981年6月15日 102（e）日期1981年6月15日PCT提交1980年10月14日PCT公布。出版物WO81 / 01031 日期：1981年04月16日。一种用于产生液压动力的系统的控制方法，该系统包括通过燃料喷射泵的燃料喷射控制的内燃机和可变排量型的多个液压泵。通过计算由内燃机的加速器的操作变量和发动机的输出发动机转速设定的目标发动机转速之间的差来获得发动机转速偏差。发动机转速偏差转换为与该偏差成功函数关系的泵控制系数。利用转换后的值和液压泵的斜盘倾斜的外部操作量进行计算，将计算出的值作为液压泵的调节器作为倾斜斜盘的目标值控制液压泵旋转斜盘的倾斜角度。同时，将发动机转速偏差转换为与该偏差成功函数关系的齿条位移目标值，并且通过转换值调节燃料喷射泵的齿条位移，从而控制燃料喷射量。

8. 发明授权

US4561249A Control system for hydraulic circuit apparatus 失效
公开(公告)号：US4561249A
公开(公告)日：1985-12-31
申请号：US426096
申请日：1982-09-28
申请人： Hiroshi Watanabe , Eiki Izumi , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
发明人： Hiroshi Watanabe , Eiki Izumi , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
IPC分类号： B66C13/18 , E02F9/20 , E02F9/22 , F15B11/16 , F15B11/17 , F15B21/08 , F16H39/46
CPC分类号： E02F9/2242 , B66C13/18 , E02F9/2025 , E02F9/2221 , E02F9/2292 , E02F9/2296 , F15B11/17 , F15B21/087 , F15B2211/20546 , F15B2211/20561 , F15B2211/27 , F15B2211/30515 , F15B2211/30595 , F15B2211/327 , F15B2211/6333 , F15B2211/6652 , F15B2211/6654 , F15B2211/71
摘要： A control system for a hydraulic circuit having at least first and second hydraulic pumps of the variable displacement type, a first hydraulic actuator arranged for hydraulic connection with the first pump through first valve to be driven thereby, and a second hydraulic actuator arranged for selective hydraulic connection with said first and second pumps through second and third valve respectively to be driven thereby. The order of priority for hydraulic connection is preset so that, when an operation signal for the second actuator is received while the first pump is inoperative, the first pump takes priority over the second pump, and when an operation signal for the first actuator is received while the first pump is in hydraulic connection with the second actuator, the first actuator takes priority over the second actuator and the second actuator is brought into hydraulic connection with the second pump, and the displacement volume of the first pump and switching of the second valve means are controlled such that, when the first pump which is, in hydraulic connection with the second actuator, is to be brought into hydraulic connection with the first actuator, the displacement volume of the first pump is returned to zero before changing of the hydraulic connection. The control system includes a first judging device for determining if the first pump is in hydraulic connection with the second actuator when the operation signal for the first actuator is received, and for generating a command for backing up reduction in the supply of hydraulic fluid into the second actuator simultaneously when the displacement volume of the first pump begins to returns to zero. When judged that the first pump is in hydraulic connection with the second actuator, a command signal switches a third valve to an open position in accordance with the backup command. A command for initiating a displacement of the second pump is generated in accordance with the backup command.

9. 发明授权

US4531369A Flushing valve system in closed circuit hydrostatic power transmission 失效
标题翻译：冲洗阀系统在闭路静液压传动
公开(公告)号：US4531369A
公开(公告)日：1985-07-30
申请号：US351756
申请日：1982-02-24
申请人： Eiki Izumi , Hiroshi Watanabe , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
发明人： Eiki Izumi , Hiroshi Watanabe , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
IPC分类号： F15B11/08 , F16H39/02 , F16H61/40 , F16H61/4008 , F16H61/4104 , F16H61/4139 , F16D31/02
CPC分类号： F16H61/40 , F16H39/02 , F16H61/4104
摘要： A flushing valve system suitable for use in a closed circuit hydrostatic transmission including a variable displacement hydraulic pump, a hydraulic actuator and two main lines. The flushing valve system includes poppet valves mounted in passages for respectively communicating the main lines with a fluid tank, passages mounting throttles for causing the pressure in the main lines to act on pressure chambers to keep poppets of the poppet valves from moving to an open position, and a change-over valve responsive to the pressure differential between the main lines to communicate the pressure chamber of the poppet valve connected to the main line on the lower pressure side with the fluid tank. The poppet valve connected to the main line on the lower pressure side opens when a predetermined pressure level is exceeded by the pressure in the main line, to thereby allow working fluid in the main line to be drained to the fluid tank.
摘要翻译：一种适用于闭路静液压变速器的冲洗阀系统，包括可变排量液压泵，液压执行器和两条主线。冲洗阀系统包括安装在通道中的提升阀，用于分别将主管线与流体箱连通，通道安装节流阀，用于使主管线中的压力作用在压力室上，以使提升阀的弹簧保持不动地移动到打开位置以及响应于主管之间的压力差的换向阀，将连接到下压侧的主管的提升阀的压力室与流体箱连通。当主管中的压力超过预定压力水平时，连接到下压侧的主管的提升阀开启，从而允许主管线中的工作流体排出到流体箱。

10. 发明授权

US4510750A Circuit pressure control system for hydrostatic power transmission 失效
标题翻译：静压力传动电路压力控制系统
公开(公告)号：US4510750A
公开(公告)日：1985-04-16
申请号：US270569
申请日：1981-06-04
申请人： Eiki Izumi , Hiroshi Watanabe , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
发明人： Eiki Izumi , Hiroshi Watanabe , Yukio Aoyagi , Kazuo Honma , Kichio Nakajima
IPC分类号： F16H61/42 , F16H61/433 , F16H61/46 , F16D33/02
CPC分类号： F16H61/433 , F16H2059/683 , F16H2059/6853 , F16H2059/6861
摘要： A circuit pressure control system for a hydrostatic power transmission having a variable-displacement hydraulic pump driven by a prime mover, a hydraulic actuator for actuating a load and a displacement adjusting mechanism for the hydraulic pump. The hydraulic pump and actuator are connected together in closed or semi-closed circuit, and the displacement adjusting mechanism is actuated by a signal indicative of the operating lever manipulated variable and a signal indicative of the actual displacement of the hydraulic pump to control the speed of the hydraulic actuator. The circuit pressure control system is provided with a sensor for sensing the circuit pressure of the hydrostatic power transmission and generating a signal indicative of the sensed circuit pressure, a device for calculating based on the manipulated variable and circuit pressure signal a hydraulic pump displacement command that causes the displacement of the hydraulic pump to be changed at a maximum rate when the circuit pressure is below a predetermined value and causes the changing rate of the displacement to be reduced when the predetermined value is exceeded thereby, and a device for comparing the displacement command with the actual displacement of the hydraulic pump and producing a signal for decreasing the difference between them and supplying such signal to the displacement adjusting mechanism.
摘要翻译：一种用于具有由原动机驱动的可变排量液压泵的液压动力传动的回路压力控制系统，用于致动负载的液压致动器和用于液压泵的位移调节机构。液压泵和致动器在闭合或半闭合的电路中连接在一起，位移调节机构由表示操作杆操纵变量的信号和表示液压泵的实际位移的信号致动以控制液压泵的速度液压执行器。电路压力控制系统设置有用于感测静液压力传递的电路压力并产生指示感测电路压力的信号的传感器，用于基于操作变量和电路压力信号计算的装置，液压泵排量指令，导致当电路压力低于预定值时液压泵的位移以最大速率变化，并且当超过预定值时使位移的变化率减小，并且用于比较位移指令与液压泵的实际位移产生用于减小它们之间的差异并将信号提供给位移调节机构的信号。

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