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1. 发明授权

EP2131045B1 SAFETY DEVICE FOR HYDRAULIC WORKING MACHINE 有权转让
公开(公告)号：EP2131045B1
公开(公告)日：2018-07-04
申请号：EP08712102.6
申请日：2008-02-28
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： SATAKE, Hidetoshi , KODAKA, Katsuaki , GOTOU, Yuuki , NAGASHIMA, Yuuji , ICHIMURA, Kazuhiro
IPC分类号： F15B20/00 , E02F9/22
CPC分类号： E02F9/226 , E02F9/2285 , F15B20/002 , F15B20/008
摘要： There are provided: control valves 22 - 24 that control flow of pressure oil from the hydraulic source 21 to the hydraulic actuators 15 - 17; electric lever devices 51 - 53 that output electrical operation signals v51 - v53 in correspondence to lever operation; electromagnetic proportional valves 25 - 30 through which control pressures for controlling the control valves 22-24 are output; a pressure calculating unit 50 that calculates control pressures P25 - P30 in correspondence to the operation signals V51 - v53; a control unit 50 that controls the electromagnetic proportional valves 25 - 30 so that control pressures to be output from the electromagnetic proportional valves 25 -30 become the control pressures P25 - P30 that have been calculated; a high-pressure selection circuit 41 - 44 that selects a higher pressure between control pressures that have been output from the electromagnetic proportional valves 25 - 30; pressure detectors 45 and 46 that detect a control pressure selected by the high-pressure selection circuit 41 - 44; an abnormality determination unit 50 that determines an abnormality in the electromagnetic proportional valves 25 - 30 based upon the control pressure detected by the pressure detectors 45 and 46 and the control pressure calculated by the pressure calculating unit; and an inhibiting device 47 and 48 that prohibits control of the control valves 22 - 24 when it is determined that an abnormality has occurred in the electromagnetic proportional valves 25 - 30.

2. 发明授权

EP2131027B1 Prime mover rotation speed control system for a hydraulically driven vehicle 有权
标题翻译：对于液压驱动车辆的发动机速度控制装置
公开(公告)号：EP2131027B1
公开(公告)日：2015-05-06
申请号：EP08712101.8
申请日：2008-02-28
申请人： Hitachi Construction Machinery Co., Ltd
发明人： KODAKA, Katsuaki , SATAKE, Hidetoshi , KOWATARI, Youichi , GOTOU, Yuuki , ICHIMURA, Kazuhiro
IPC分类号： F02D29/02 , E02F9/22 , F02D29/00 , E02F9/20 , B60W10/06 , F16H61/423 , F16H61/431 , F16H59/68
CPC分类号： E02F9/2253 , B60W10/06 , B60W2520/10 , B60W2710/0644 , B60W2720/10 , E02F9/2066 , E02F9/2246 , E02F9/2285 , E02F9/2296 , F02D29/02 , F16H61/423 , F16H61/431 , F16H2059/6861 , F16H2059/6876

3. 发明授权

EP1350990B1 DEVICE FOR DETECTING FAILURE OF HYDRAULIC MOTOR, AND HYDRAULIC VEHICLE 有权
标题翻译：设备技术检测液压发动机和液压车辆的故障
公开(公告)号：EP1350990B1
公开(公告)日：2007-10-10
申请号：EP00985794.7
申请日：2000-12-20
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： ICHIMURA, Kazuhiro , KODAKA, Katsuaki, Hitachi Const. Machinery Co. Ltd , YOSHIO, Saburou
IPC分类号： F16H61/40 , F15B11/02 , F15B20/00 , F16H61/12
CPC分类号： F03C1/0678 , F04B2207/70 , F15B19/005 , F16H61/12 , F16H61/4148 , F16H61/4192 , F16H2059/006 , F16H2059/6861 , F16H2061/1208 , F16H2061/1216 , F16H2061/1232 , F16H2061/124 , F16H2061/1272
摘要： A device for detecting failures of a hydraulic motor comprises a hydraulic pump (3) driven by a motor (2), a hydraulic motor (1) driven by the fluid discharged from the hydraulic pump (3), a failure detector (35) for detecting malfunctions of the hydraulic motor (1), and alarm devices (30, 39, 40) adapted to issue alarms if a malfunction of the hydraulic motor (1) is detected by the failure detector (35).

4. 发明公开

EP1580466A1 HYDRAULICALLY DRIVEN VEHICLE 有权
标题翻译：液压动力汽车
公开(公告)号：EP1580466A1
公开(公告)日：2005-09-28
申请号：EP02792057.8
申请日：2002-12-27
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： TATSUNO, Yukihiro , ICHIMURA, Kazuhiro , SATAKE, Hidetoshi
IPC分类号： F16H61/42
CPC分类号： F16H61/4183 , B60W30/18045 , E02F9/226 , E02F9/2296 , F16H61/40 , F16H61/4061 , F16H61/4069 , F16H61/4148 , F16H61/42 , F16H61/423 , F16H2059/065 , F16H2059/443
摘要： The present invention includes a hydraulic pump (11), a variable displacement hydraulic motor (5) for traveling driven by pressure oil from the hydraulic pump (11), a motor displacement control means (17, 18) for adjusting a displacement of the hydraulic motor (5) in correspondence to a drive pressure at the hydraulic motor (5), an operating member (22) through which a forward travel command and a backward travel command for the vehicle are issued, a control means (12) to be driven in response to an operation of the operating member (22), for controlling a flow of pressure oil from the hydraulic pump (11) to the hydraulic motor (5), a reverse operation detection means (41A, 41B) for detecting a reverse operation of the operating member (22) performed to a reverse side opposite from a direction along which the vehicle is advancing, and a cavitation preventing means (25A,25B) engaged in operation so as to prevent occurrence of cavitation at the hydraulic motor (5) when the reverse operation at the operating member (22) is detected by the reverse operation detection means (41A, 41B).

5. 发明授权

EP1331383B1 HYDRAULIC TRAVELING VEHICLE AND METHOD OF CONTROLLING SPEED OF PRIME MOVER OF HYDRAULIC TRAVELING VEHICLE 有权
标题翻译：液压机动车辆和速度控制方法的汽车的运营商
公开(公告)号：EP1331383B1
公开(公告)日：2011-07-06
申请号：EP01976798.7
申请日：2001-10-22
申请人： Hitachi Construction Machinery Co., Ltd
发明人： ICHIMURA, Kazuhiro , SHINYA, Toshihiko
IPC分类号： F02D29/00 , E02F9/22
CPC分类号： B60W30/18072 , B60W10/06 , B60W10/103 , E02F9/2235 , E02F9/2239 , E02F9/2246 , E02F9/2282 , E02F9/2292 , E02F9/2296 , F02D29/04 , F02D31/001 , F02D41/083 , F16H59/22
摘要： A method of controlling the speed of the prime mover of a hydraulic traveling vehicle, comprising the steps of stopping the operation of an accelerator pedal during idle control with an accelerator switch turned on, closing a slow down switch and switching an idle selector switch to a contact (a) when the stop of operation of the accelerator pedal is detected for a specified time, slowing down the speed of an engine by an instruction from a slow down control part, and switching the idle selector switch to a contact (c) when the stop of operation of an operation lever is detected for a specified time, whereby the speed of the engine can be immediately controlled to an idle speed.

6. 发明授权

EP1500850B1 TRAVEL CONTROL DEVICE OF HYDRAULICALLY DRIVEN VEHICLE, HYDRAULICALLY DRIVEN VEHICLE, AND WHEEL HYDRAULIC SHOVEL 有权
标题翻译：驱动控制设备有关车轮液压支架汽车液压机动车辆和液压挖掘机
公开(公告)号：EP1500850B1
公开(公告)日：2011-06-08
申请号：EP03717566.8
申请日：2003-04-11
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： HARAMOTO, Hideki , SATAKE, Hidetoshi , TATSUNO, Yukihiro , ICHIMURA, Kazuhiro
IPC分类号： F16H61/4017 , F16H61/4157 , F16H61/421 , F16H61/47
CPC分类号： F16H61/421 , B60W30/146 , F16H59/40 , F16H61/4017 , F16H61/4148 , F16H61/4157 , F16H61/46 , F16H61/47 , F16H2059/6876 , Y10T137/7771
摘要： A travel control device of a hydraulically driven vehicle, comprising a hydraulic pump (10) driven by a prime mover, a traveling motor (12) driven by pressure oil supplied from the hydraulic pump (10), a traveling control valve (11) for controlling the flow of the pressure oil supplied from the hydraulic pump (10) to the traveling motor (12), an operating means (22a) for operating the traveling control valve (11), a rotational speed detection means (95) for detecting the rotational speed (N) of the traveling motor (12), and motor over-speed prevention means (14, 17, 32) for decelerating the traveling motor (12) when a rotational speed exceeding a specified upper limit Nmax is detected by a rotational speed detection means (95).

7. 发明授权

EP1544440B8 PRIME MOVER CONTROLLER OF A CONSTRUCTION MACHINE. 有权
标题翻译：施工机械的动力单元控制。
公开(公告)号：EP1544440B8
公开(公告)日：2010-02-17
申请号：EP02807863.2
申请日：2002-09-26
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： SATAKE, Hidetoshi , ICHIMURA, Kazuhiro , TATSUNO, Yukihiro
IPC分类号： F02D29/00 , E02F9/22
CPC分类号： F02D31/001 , B60K17/10 , B60W10/06 , B60W10/10 , B60W10/103 , B60W30/18136 , B60W2300/17 , B60W2540/10 , B60W2710/0644 , E02F9/2246 , E02F9/2253 , E02F9/226 , E02F9/2296 , F02D11/105 , F02D29/00 , F02D29/02 , F02D41/12 , F02D2200/1012 , F02D2200/602 , F02D2200/702 , F16H59/40 , F16H61/4148 , F16H61/4157 , F16H2059/186 , F16H2059/6876
摘要： A prime mover controller in a construction machine comprising a hydraulic pump (11) being driven by a prime mover (40), a hydraulic motor (5) for traveling being driven by pressure oil delivered from the hydraulic pump (11), and a control valve (12) for controlling pressure oil flow from the hydraulic pump (11) to the hydraulic motor (5) depending on the operation of an operating member (22a). The prime mover controller further comprises means (31) for detecting the decelerating operation of the operating member (22a), means (35) for detecting the revolution speed Nm of the hydraulic motor (5), and means (30, 43) for controlling the revolution speed of the prime mover (40) depending on the detection results of the means (35) for detecting the revolution speed when a decelerating operation is detected by the means (31) for detecting the decelerating operation and controlling the revolution speed of the prime mover (40) depending on the operation of the operating member (22a) when an operation other than decelerating operation is detected.

8. 发明公开

EP2131046A1 SAFETY DEVICE FOR HYDRAULIC WORKING MACHINE 有权
标题翻译：三TS R R R INE INE INE INE INE INE INE INE INE INE INE INE INE
公开(公告)号：EP2131046A1
公开(公告)日：2009-12-09
申请号：EP08712103.4
申请日：2008-02-28
申请人： Hitachi Construction Machinery Co., Ltd
发明人： SATAKE, Hidetoshi , KODAKA, Katsuaki , GOTOU, Yuuki , NAGASHIMA, Yuuji , ICHIMURA, Kazuhiro
IPC分类号： F15B20/00 , E02F9/20 , E02F9/24 , F15B11/08
CPC分类号： F15B20/008 , E02F3/965 , E02F9/2228 , E02F9/226 , E02F9/2285 , E02F9/26 , F15B21/08 , F15B2211/20584 , F15B2211/3144 , F15B2211/329 , F15B2211/6054 , F15B2211/6316 , F15B2211/6346 , F15B2211/7053 , F15B2211/7058 , F15B2211/8752
摘要： There are provided: control valves 22 - 24 that control flow of pressure oil from the hydraulic source 21 to the hydraulic actuators 15 - 17; electric lever devices 51 - 53 that output electrical operation signals, which are drive instructions for the hydraulic actuators 15 - 17, in correspondence to lever operation; and a control unit 25 - 30 and 50 that controls the control valves 22 - 24 in correspondence to the operation signals. When the determination unit determines that an operation signal is not within the normal range, the hydraulic actuators 15 - 17 are allowed to be driven with flow of pressure oil to the hydraulic actuators 15 - 17 limited more significantly than in a case where it is decided that an operation signal is within the normal range.
摘要翻译：提供：控制阀22-24，其控制从液压源21到液压致动器15-17的压力油的流动; 输出作为液压致动器15-17的驱动指令的电动操作信号的电动杠杆装置51-53，其对应于杠杆操作; 以及对应于操作信号控制控制阀22-24的控制单元25-30和50。当确定单元确定操作信号不在正常范围内时，允许液压致动器15-17被驱动，压力油流动到液压致动器15-17被限制得比在确定的情况下更加明显操作信号在正常范围内。

9. 发明授权

EP1544440B1 PRIME MOVER CONTROLLER OF A CONSTRUCTION MACHINE. 有权
标题翻译：施工机械的动力单元控制。
公开(公告)号：EP1544440B1
公开(公告)日：2009-06-03
申请号：EP02807863.2
申请日：2002-09-26
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , Tatsuno, Yukihiro
发明人： SATAKE, Hidetoshi , ICHIMURA, Kazuhiro , TATSUNO, Yukihiro
IPC分类号： F02D29/00 , E02F9/22
CPC分类号： F02D31/001 , B60K17/10 , B60W10/06 , B60W10/10 , B60W10/103 , B60W30/18136 , B60W2300/17 , B60W2540/10 , B60W2710/0644 , E02F9/2246 , E02F9/2253 , E02F9/226 , E02F9/2296 , F02D11/105 , F02D29/00 , F02D29/02 , F02D41/12 , F02D2200/1012 , F02D2200/602 , F02D2200/702 , F16H59/40 , F16H61/4148 , F16H61/4157 , F16H2059/186 , F16H2059/6876
摘要： A prime mover controller in a construction machine comprising a hydraulic pump (11) being driven by a prime mover (40), a hydraulic motor (5) for traveling being driven by pressure oil delivered from the hydraulic pump (11), and a control valve (12) for controlling pressure oil flow from the hydraulic pump (11) to the hydraulic motor (5) depending on the operation of an operating member (22a). The prime mover controller further comprises means (31) for detecting the decelerating operation of the operating member (22a), means (35) for detecting the revolution speed Nm of the hydraulic motor (5), and means (30, 43) for controlling the revolution speed of the prime mover (40) depending on the detection results of the means (35) for detecting the revolution speed when a decelerating operation is detected by the means (31) for detecting the decelerating operation and controlling the revolution speed of the prime mover (40) depending on the operation of the operating member (22a) when an operation other than decelerating operation is detected.

10. 发明公开

EP1550803A1 PRIME MOVER CONTROLLER OF CONSTRUCTION MACHINE 有权
标题翻译：工程机械的动力单元控制
公开(公告)号：EP1550803A1
公开(公告)日：2005-07-06
申请号：EP02807861.6
申请日：2002-09-26
申请人： Hitachi Construction Machinery Co., Ltd
发明人： TATSUNO, Yukihiro , SATAKE, Hidetoshi , ICHIMURA, Kazuhiro
IPC分类号： F02D29/00
CPC分类号： E02F9/2253 , B60K25/04 , B60W10/06 , B60W10/103 , B60W30/18 , E02F9/2225 , E02F9/2228 , E02F9/2246 , E02F9/2285 , E02F9/2296 , F02D29/00 , F02D31/001 , F16H61/4061 , F16H61/465 , Y10S180/90
摘要： A prime mover control device of a construction machine includes a hydraulic pump (24) driven by a prime mover (10), an actuator (5) driven with pressure oil discharged from the hydraulic pump (24), and a control valve (25) that controls a flow of the pressure oil from the hydraulic pump (24) to the actuator (5) in response to an operation of a first operating member (22a). The prime mover control device includes a first set means (41) that sets a first set rotation speed Nt of the prime mover (10) according to the operation of the first operating member (22a), a second set means (43) that sets a second set rotation speed Nx of the prime mover (10) according to an operation of a second operating member (34), a selection member (35) that selects one of a first mode and a second mode, and a rotation speed control means (30, 13) that controls a prime mover rotation speed to match with a maximum value of the first set rotation speed Nt and the second set rotation speed Nx when the selection member (35) selects the first mode, and controls the prime mover rotation speed to match with the second set rotation speed Nx when the selection member (35) selects the second mode.

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