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61. 发明公开

EP0353799A1 Apparatus for controlling rotational speed of prime mover of construction machine 失效
标题翻译： Vorrichtung zum Regeln der Motordrehzahl einesErdbaugerätes。
公开(公告)号：EP0353799A1
公开(公告)日：1990-02-07
申请号：EP89201759.1
申请日：1989-07-03
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Tatsumi, Akira , Hirata, Toichi , Egashira, Masaki , Tomikawa, Osamu , Watanabe, Hiroshi
IPC分类号： E02F3/32 , E02F9/22 , E02F9/20 , F02D29/04
CPC分类号： F02D29/04 , E02F9/2025 , E02F9/2246 , E02F9/2296
摘要： A controller having an up/down (6U, 6D) switch for changing the rotational speed of a prime mover such as an engine (1), an actuator (3) such as an electric motor for driving a governor on the basis of the operation of the up/down switch so as to control the rotational speed of the prime mover. A target speed is calculated on the basis of the operation of the up/down switch, and the prime mover speed is controlled by using the calculated value. Another switch is provided to immediately shift the prime mover speed to a speed previously set as desired. This shift switch is used to control the prime mover so that the prime mover rotates at the set speed, and this speed is adjusted by operating the up/down switch.
摘要翻译：一种控制器，其具有用于改变诸如发动机（1）的原动机，诸如用于基于操作驱动调速器的电动机的致动器（3）的转速的上/下（6U，6D）开关的上/下开关，以便控制原动机的转速。基于上/下开关的操作来计算目标速度，并且通过使用计算值来控制原动机速度。提供另一个开关以立即将原动机速度移动到预期根据需要设定的速度。该换档开关用于控制原动机，使原动机以设定速度旋转，并通过操作上/下开关来调节该速度。

62. 发明公开

EP0341650A2 Hydraulic drive system for crawler-mounted construction vehicle 失效
标题翻译： Hydraulische AntriebseinrichtungfürRaupenbaufahrzeuge。
公开(公告)号：EP0341650A2
公开(公告)日：1989-11-15
申请号：EP89108297.6
申请日：1989-05-09
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Hirata, Toichi , Tanaka, Hideaki , Sugiyama, Genroku , Kajita, Yusuke Kawaraba-Apartment 101
IPC分类号： B62D11/18 , F15B11/04 , F16H61/44
CPC分类号： E02F9/225 , B62D11/18 , E02F9/2296 , F15B11/165 , F15B13/0417 , F15B2211/20553 , F15B2211/253 , F15B2211/30515 , F15B2211/30535 , F15B2211/3111 , F15B2211/329 , F15B2211/351 , F15B2211/40515 , F15B2211/40569 , F15B2211/41581 , F15B2211/4159 , F15B2211/428 , F15B2211/45 , F15B2211/46 , F15B2211/5059 , F15B2211/6052 , F15B2211/6054 , F15B2211/6058 , F15B2211/6355 , F15B2211/7058 , F15B2211/71
摘要： A hydraulic drive system for a crawler-mounted construction vehicle includes: a hydraulic pump (1); a plurality of hydraulic actuators including first and second traveling hydraulic motors (2, 3) driven by a hydraulic fluid discharged by the hydraulic pump: a plurality of flow control valve means including first and second flow control valve means (15, 16; 35, 36) for respectively controlling the flow rates of the hydraulic fluid supplied from the hydraulic pump to the first and second traveling hydraulic motors; pump controlling means (11) fo effecting control during the driving of the first and second traveling motors in such a manner that the discharge pressure of the hydraulic pump becomes higher by a fixed value than the higher one of load pressures of the traveling motors; and first and second pressure balance valve means (17, 18; 37, 38) for respectively controlling the rates of flow through the flow control valve means during th driving of the first and second traveling motors in such a manner that the load pressures of the traveling motors do not affect the rates of flow through the first and second flow control valve means. The first and second pressure balance valve means (17, 18; 37, 38) are respectively provided with valve control means (62, 63; 66, 67) which do not cause the associated pressure balance valve mean to be actuated until the differential pressure between the load pressure generated in the first traveling motor (2) and the load pressure generated in the second traveling motor (3) reaches a predetermined value (ΔP₀), and causes the pressure balance valve means to be actuated when the differential pressure exceeds the predetermined value.
摘要翻译：一种用于履带式施工车辆的液压驱动系统包括：液压泵（1）; 多个液压致动器，包括由液压泵排出的液压流体驱动的第一和第二行进液压马达（2,3）;多个流量控制阀装置，包括第一和第二流量控制阀装置（15,16; 35， 36），用于分别控制从液压泵供给到第一和第二行驶液压马达的液压流体的流量; 在第一和第二行进电动机的驱动期间进行控制的泵控制装置（11）使得液压泵的排出压力比运行电动机的负载压力的上限更高一定的值; 以及第一和第二压力平衡阀装置（17,18; 37,38），用于分别在第一和第二行进电动机的驱动期间分别控制通过流量控制阀装置的流量，使得负载压力行驶马达不影响通过第一和第二流量控制阀装置的流量。第一和第二压力平衡阀装置（17,18; 37,38）分别设置有阀控制装置（62,63,66,67），其不会使相关联的压力平衡阀装置被致动直到压差在第一行进电动机（2）中产生的负载压力和第二行驶电动机（3）中产生的负载压力之间达到预定值（DELTA P0），并且当差压超过时，使压力平衡阀装置被致动预定值。

63. 发明公开

EP0326150A1 Control system for load-sensing hydraulic drive circuit 失效
标题翻译： Steuersystemfüreinen hydraulisch lastdruckkompensierten Kreislauf。
公开(公告)号：EP0326150A1
公开(公告)日：1989-08-02
申请号：EP89101426.8
申请日：1989-01-27
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Izumi, Eiki , Tanaka, Yasuo , Watanabe, Hiroshi , Yoshida, Kuniaki , Hirata, Toichi
IPC分类号： E02F9/20 , E02F9/22 , F15B11/05 , F02D29/04
CPC分类号： E02F9/2025 , E02F9/2228 , E02F9/2235 , E02F9/2246 , E02F9/2292 , E02F9/2296 , F02D29/04 , F15B11/165 , F15B21/087 , F15B2211/20553 , F15B2211/255 , F15B2211/30505 , F15B2211/30535 , F15B2211/3111 , F15B2211/31576 , F15B2211/329 , F15B2211/6054 , F15B2211/6309 , F15B2211/6313 , F15B2211/633 , F15B2211/6333 , F15B2211/634 , F15B2211/6346 , F15B2211/6355 , F15B2211/7053 , F15B2211/71
摘要： A control system for a load-sensing hydraulic drive circuit comprising; at least one hydraulic pump (1); a plurality of hydraulic actuators (2,3) driven with hydraulic fluid delivered from the hydraulic pump; and a pressure compensated flow control valve (4,5,6,7) connected between the pump and each of the actuators, for controlling a flow rate of the fluid supplied to each the actuator in response to an operation signal from control means. The control system comprises first detection means (43) for detecting a differential pressure (ΔP) between the delivery pressure of the pump and the maximum load pressure among the plurality of hydraulic actuators; second detection means (14) for detecting the delivery pressure of the pump; first means for calculating, based on a differential pressure signal from the first detection means, a differential pressure target delivery amount QΔ p of the pump to hold the differential pressure constant; second means for calculating an input limiting target delivery amount QT of the pump based on at least a pressure signal from the second detection means and an input limiting function preset for the pump; third means for selecting one of the differential pressure target delivery amount QΔ p and the input limiting target delivery amount QT as a delivery amount target value Qo for the pump, and then controlling the delivery amount of the pump such that it does not exceed above the input limiting target delivery amount QT; and fourth means for calculating a compensation value Qns to limit a total consumable flow rate for the actuator based on at least the input limiting target delivery amount QT and the differential pressure target delivery amount QΔ p when the input limiting target delivery amount QT is selected by the third means, and then controlling the pressure compensated flow control valve based on the compensation value Qns.
摘要翻译：一种用于负载感测液压驱动电路的控制系统，包括：至少一个液压泵（1）; 多个液压致动器（2,3），其由从液压泵输送的液压流体驱动; 以及连接在泵和每个致动器之间的压力补偿流量控制阀（4,5,6,7），用于响应于来自控制装置的操作信号控制供应到每个致动器的流体的流量。控制系统包括用于检测泵的输送压力和多个液压致动器中的最大负载压力之间的差压（DELTA P）的第一检测装置（43）用于检测泵的输送压力的第二检测装置（14）; 用于基于来自第一检测装置的差压信号计算用于保持压差常数的泵的差压目标输送量Q DELTA p的第一装置; 至少基于来自第二检测装置的压力信号和针对泵预先设定的输入限制功能来计算泵的输入限制目标传送量QT的第二装置; 用于选择差压目标输送量Q DELTA p和输入限制目标输送量QT中的一个作为泵的输送量目标值Qo的第三装置，然后控制泵的输送量使得其不超过上述输入限制目标传送量QT; 以及第四装置，用于当选择输入限制目标传送量QT时，至少基于输入限制目标传递量QT和差压目标传送量Q DELTA p来计算补偿值Qns以限制致动器的总的可消耗流量通过第三装置，然后基于补偿值Qns控制压力补偿流量控制阀。

64. 发明授权

EP0214633B1 Control system for hydraulically-operated construction machinery 有权
标题翻译：液压施工机械控制系统
公开(公告)号：EP0214633B1
公开(公告)日：1989-01-11
申请号：EP86112330.5
申请日：1986-09-05
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Okabe, Nobuya , Hirata, Toichi , Yoshida, Kuniaki , Sugiyama, Genroku , Haga, Masakazu , Tanaka, Hideaki , Tatsumi, Akira
IPC分类号： E02F3/30 , E02F3/32 , E02F9/22
CPC分类号： E02F9/2246 , B60W10/06 , B60W10/30 , B60W30/188 , B60W2300/17 , B60W2510/0638 , B60W2510/30 , B60W2540/04 , B60W2710/0644 , B60W2710/30 , E02F9/2235 , E02F9/2282 , E02F9/2292 , E02F9/2296

65. 发明公开

EP0297682A2 Hydraulic drive system 有权
标题翻译：液压系统。
公开(公告)号：EP0297682A2
公开(公告)日：1989-01-04
申请号：EP88201351.9
申请日：1988-06-29
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Izumi, Eiki , Hirata, Toichi , Nozawa, Yusaku , Shimotori, Masahiko
IPC分类号： F15B13/042 , E02F3/32 , E02F9/22
CPC分类号： F15B13/0405 , E02F9/2225 , E02F9/2232 , Y10T137/87193
摘要： In a hydraulic drive system, first and second flow control valves means (8, 9; 100,101; 170,171; 200,201) comprise each; a main valve (11,70; 102,103; 160; 271) of seat valve type having a valve body (21; 162; 276) for controlling communication between an inlet port (17; 273) and an outlet port (18; 274) both connected to a main circuit (2-5), a variable restrictor (22; 163; 277) capable of changing an opening degree thereof in response to displacements of the valve body, and a back pressure chamber (24; 278) communicating with the inlet port through the variable restrictor and producing a control pressure to urge the valve body in the valve-closing direction; a pilot valve (15,74; 120,121; 290) connected to a pilot circuit (12-14, 71-73; 116, 117; 289) which is connected between the back pressure chamber and the outlet port of the main valve; and an auxilary valve (16,75; 124,125; 150; 172, 173; 190-196; 202,203; 242,243; 272) connected to the pilot circuit for controlling a differential pressure between the inlet pressure and the outlet pressure of the pilot valve. The auxiliary valve is controlled (by 43-49,51; 131-137; 151-154; 175-180; 202A, 203A, 213; 244-247, 254; 282-286) such that the differential pressure between the inlet pressure and the outlet pressure of the pilot valve has a relationship expressed by a certain equation including constants α , β and γ , with respect to a differential pressure between the delivery pressure of a hydraulic pump (1; 385; 390) and the maximum load pressure of first and second hydraulic actuators (6,7; 87-90), a differential pressure between that maximum load pressure and the self-load pressure of each of the hydraulic actuators, and the self-load pressure, the constants α , β and γ being set to respective predetermined values.
摘要翻译：在液压驱动系统中，第一和第二流量控制阀装置（8,9; 100,101; 170,171; 200,201）包括每个; 具有用于控制入口（17; 273）和出口（18; 274）之间的连通的阀体（21; 162; 276）的座阀类型的主阀（11,70; 102,103; 160; 271）两者都连接到主电路（2-5），能够响应于阀体的位移而改变其开度的可变节流器（22; 163; 277）和与所述入口通过所述可变节流器并产生控制压力以在所述阀关闭方向上推动所述阀体; 连接到连接在所述背压室和所述主阀的出口之间的先导回路（12-14,71,73; 116,117; 289）的先导阀（15,74; 120,121; 290）以及连接到先导电路的辅助阀（16,75; 124,125; 150; 172,173; 190-196; 202,203; 242,243; 272），用于控制先导阀的入口压力和出口压力之间的压差。辅助阀被控制（43-49,51; 131-137; 151-154; 175-180; 202A，203A，213; 244-247,254; 282-286），使得入口压力并且先导阀的出口压力相对于液压泵（1; 385; 390）的输送压力和最大负载压力之间的压差，由包括常数α，β和γ的一定方程表示的关系的第一和第二液压致动器（6,7,87-90）中，每个液压致动器的最大负载压力和自负载压力之间的压差以及自负载压力，常数α，β和伽玛被设置为相应的预定值。

66. 发明公开

EP0262604A1 Hydraulic circuit for hydraulic construction machine 有权
标题翻译： HydraulikkreislauffürhydraulischbetätigteErdbewegungsmaschinen。
公开(公告)号：EP0262604A1
公开(公告)日：1988-04-06
申请号：EP87114033.1
申请日：1987-09-25
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Sugiyama, Genroku , Hirata, Toichi , Satoh, Shinichi
IPC分类号： E02F9/22 , E02F9/20 , E02F9/24 , E02F3/32 , F15B11/16
CPC分类号： E02F9/2239 , E02F9/2292 , F15B11/16 , F15B2211/30595 , F15B2211/3116 , F15B2211/40515 , F15B2211/428 , F15B2211/45 , F15B2211/6355 , F15B2211/67 , F15B2211/7142
摘要： A hydraulic circuit for a construction machine for operating an actuator for a working machine (107) simultaneously with an actuator for a working element (107). The hydraulic circuit comprises a first hydraulic pump (50), a first directional control valve (1, 100) connected to the first hydraulic pump (50) and controlling an operation of the working machine actuator (107), a third directional control valve (306) controlling an operation of the working element actuator (302), a second directional control valve (2) connected to a second hydraulic pump (52), a first pilot operating device (111, 201) for controlling an operation of the first directional control valve (1, 100) and a second pilot operating device (304, 303) for controlling an operation of the third directional control valve (306). The hydraulic circuit further comprises a first hydraulic fluid joining device (323; 324, 325) for providing hydraulic fluid of the second hydraulic pump(52)to the input side of third directional control valve (306), a second hydraulic fluid joining device (10, 40, 41, 43) for supplying the hydraulic fluid of the second hydraulic pump (52) to the input side of the first directional control valve (1, 100), and a priority switching device (320, 328; 326, 329) for preventing, in response to a signal of the first pilot operating device (111, 201), the signal of the second pilot operating device (304, 303) from being applied to the second directional control valve (2).
摘要翻译：一种用于与用于工作元件（107）的致动器同时操作用于工作机械（107）的致动器的施工机械的液压回路。液压回路包括第一液压泵（50），连接到第一液压泵（50）并控制作业机械致动器（107）的操作的第一方向控制阀（1,100），第三方向控制阀控制工作元件致动器（302）的操作;连接到第二液压泵（52）的第二方向控制阀（2）;用于控制第一方向性操作的第一先导操作装置（111,201）控制阀（1,100）和用于控制第三方向控制阀（306）的操作的第二先导操作装置（304,303）。液压回路还包括用于将第二液压泵（52）的液压流体提供给第三方向控制阀（306）的输入侧的第一液压流体接合装置（323; 324,325），第二液压流体接合装置 10，40,41,43），用于将第二液压泵（52）的液压流体供给到第一方向控制阀（1,100）的输入侧，优先切换装置（320,328; 326,329 ），用于响应于第一先导操作装置（111,201）的信号，防止第二先导操作装置（304,303）的信号被施加到第二方向控制阀（2）。

67. 发明授权

EP2119836B1 Traveling hydraulic working machine 有权
标题翻译：移动式液压作业机
公开(公告)号：EP2119836B1
公开(公告)日：2010-07-28
申请号：EP09009183.6
申请日：2004-07-30
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Nakamura, Tsuyoshi , Sugiyama, Genroku , Nakamura, Kazunori , Hirata, Toichi
IPC分类号： E02F9/22 , F02D29/02 , F02D31/00
CPC分类号： F02D41/021 , E02F9/2246 , F02D29/02 , F02D31/001

68. 发明公开

EP1369341A2 Operator's cab in construction machine 有权
标题翻译： Fahrerhausfüreine Baumaschine
公开(公告)号：EP1369341A2
公开(公告)日：2003-12-10
申请号：EP03077700.7
申请日：1998-12-03
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Sakyo, Tsuyoshi , Hirata, Toichi , Tamura, Kazuhisa , Sonoda, Jun , Nakagawa, Takashi
IPC分类号： B62D33/06
CPC分类号： B62D21/09 , B62D27/026 , B62D33/06
摘要： An operator's cab in a construction machine in which hollow pillar portions are formed each with an outer panel and an inner panel bonded to each other and the hollow pillar portions constitute an operator's cab frame, includes at least one reinforcement member constituted of thin plate that is bonded to the outer panel and/or the inner panel to divide an internal space of each of the hollow pillar portions.
摘要翻译：一种建筑机械中的操作室，其中形成中空柱部分，每个中空柱部分均具有彼此接合的外板（8）和内板（7），中空柱部构成操作室框架，包括至少一个加强构件（40），其由与所述外板和/或所述内板接合的薄板构成，以分隔每个所述中空柱部的内部空间。

69. 发明授权

EP0884422B1 Engine control system for construction machine 失效
公开(公告)号：EP0884422B1
公开(公告)日：2003-09-10
申请号：EP98110414.4
申请日：1998-06-08
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Nakamura, Kazunori , Takahashi, Ei , Hirata, Toichi
IPC分类号： E02F9/22
CPC分类号： E02F9/2296 , E02F9/2235 , E02F9/2246 , E02F9/225 , E02F9/2292

70. 发明授权

EP0780522B1 Pump Torque control system 失效转让
标题翻译：用于泵的转矩控制系统
公开(公告)号：EP0780522B1
公开(公告)日：2001-03-14
申请号：EP96203671.1
申请日：1996-12-23
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： Konno, Shigetoshi , Yoshinaga, Shigehiro, Dorf-Kidokoro II 202 , Hirata, Toichi , Kowatari, Youichi , Sugiyama, Genroku , Ishikawa, Kouji
IPC分类号： E02F9/22
CPC分类号： E02F9/2246 , B60W2710/0644 , E02F9/2235 , E02F9/2296

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