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1. 发明授权

EP2660395B1 COOLING SYSTEM FOR HYBRID WORK MACHINE 有权
公开(公告)号：EP2660395B1
公开(公告)日：2018-12-12
申请号：EP11852371.1
申请日：2011-12-27
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： OTA Yasunori , IWASAKI Satoshi
IPC分类号： E02F9/20 , B60K11/04 , B60L11/14 , F01P7/16 , H02K9/02 , B60K11/02
CPC分类号： E02F9/2058 , B60K11/02 , B60K2001/005 , B60K2001/006 , B60K2025/026 , B60L1/003 , B60L1/02 , B60L3/003 , B60L3/0061 , B60L11/005 , B60L11/14 , B60L11/1874 , B60L2200/40 , B60L2210/40 , B60L2240/36 , B60L2240/425 , B60L2240/445 , B60L2240/525 , B60L2240/545 , B60Y2200/412 , E02F9/128 , E02F9/2075 , E02F9/2091 , E02F9/2217 , E02F9/226 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , E02F9/26 , F01P3/20 , F01P2050/24 , Y02T10/642 , Y02T10/70 , Y02T10/7005 , Y02T10/7022 , Y02T10/705 , Y02T10/7077 , Y02T10/7241
摘要： When temperature is low, a low-temperature mode is selected, followed by the activation of the heating mode functionality 25a of a PCU 25. Specifically, the PCU 25 sets the ratio of energy recovered by a capacitor 23 to be equal to or greater than the largest value of the energy recovery ratios of the capacitor 23 in a normal mode (e.g., assist motor 22 : capacitor 23 = 2 : 8). Thus, more energy is stored on the capacitor 23 than in the normal mode, helping the capacitor 23 generates heat. As a result, the liquid temperature of the coolant is increased, and its viscosity is reduced accordingly. As above, the invention provides a simple cooling system to be mounted on a hybrid working machine, which is capable of preventing decreases in energy efficiency at low temperature.

2. 发明授权

EP2617999B1 METHOD FOR CONTROLLING DRIVING OF WORK MACHINE 有权
公开(公告)号：EP2617999B1
公开(公告)日：2018-10-31
申请号：EP11824752.7
申请日：2011-09-09
申请人： Kawasaki Jukogyo Kabushiki Kaisha
发明人： YAMAMOTO, Ryo , YAMADA, Masahiro , YUDATE, Yoji
IPC分类号： F04B49/06 , E02F9/20 , E02F9/22 , B66C23/86 , E02F9/12 , F04B49/00 , F04B49/22
CPC分类号： E02F9/2221 , B66C23/86 , E02F9/123 , E02F9/128 , E02F9/2095 , E02F9/2217 , E02F9/225 , E02F9/2292 , E02F9/2296 , F04B49/002 , F04B49/06 , F04B49/22
摘要： In drive control of an operating machine configured to drive a structure by a hydraulic motor (2) configured to be driven by operating oil supplied from a hydraulic pump (10) and an electric motor (3) configured to cooperate with the hydraulic motor (2), a speed command generated based on a manipulation amount of a remote control valve (5) configured to determine an operation amount of the structure is subjected to speed feedback control performed based on the actual rotation speed of the hydraulic motor (2) and pressure difference feedback control performed based on an operating oil pressure difference between a suction port and discharge port of the hydraulic motor (2). With this, a tilting angle command is generated such that the operating oil, the amount of which is necessary at the actual rotation speed of the hydraulic motor 2, is ejected, and the tilting angle of the hydraulic pump (10) is controlled. Thus, the amount of oil supplied from the hydraulic pump to the hydraulic motor is controlled in accordance with the manipulation amount of the remote control valve, the rotation speed of the hydraulic motor, and the operating oil pressure difference between the suction port and discharge port of the hydraulic motor. As a result, energy loss is suppressed.

3. 发明授权

EP1961869B1 Rotation control device and working machine therewith 有权
公开(公告)号：EP1961869B1
公开(公告)日：2018-10-10
申请号：EP08151686.6
申请日：2008-02-20
申请人： Kobelco Construction Machinery Co., Ltd.
发明人： Kagoshima, Masayuki Kobelco Construction Machinery Co., Ltd. , Komiyama, Masayuki Kobelco Construction Machinery Co., Ltd. , Tsutsui, Akira Kobe Corporate Research Lab. in Kobe Steel Ltd.
IPC分类号： E02F9/12 , E02F9/20
CPC分类号： E02F9/123 , E02F9/128 , E02F9/2075 , E02F9/2095
摘要： An excavator (1) has a controller (26) capable of setting target torque of a rotation motor (18) in accordance with a speed deviation between target speed set in accordance with an operation amount of an operating lever (25) and actual rotation speed and is provided with an inverter (23) for detecting necessary torque for rotating an upper rotating body (3), the necessary torque being changed in accordance with a working state of the upper rotating body (3). The controller (26) calculates a correction amount which is increased as increasing the torque and subtracts the correction amount from the target speed so as to set new target speed. A controller (26) sets first target torque for driving the motor and second target torque for maintaining the upper rotating body (3) on the spot on the basis of the actual speed, and operates the motor in accordance with the torque which has a larger absolute value in the same direction as the first target torque among both the torque.

4. 发明授权

EP2800837B1 HYDRAULIC HYBRID SWING DRIVE SYSTEM FOR VEHICLES 有权转让
公开(公告)号：EP2800837B1
公开(公告)日：2018-07-11
申请号：EP13701135.9
申请日：2013-01-04
申请人： Parker-Hannifin Corporation
发明人： CULLMAN, Jeff , ZHANG, Hao , KIMPEL, Richard D. , JIANG, Zhesheng , COLLETT, Raymond , KOZUL, Bogdan
IPC分类号： E02F9/20 , E02F9/22 , E02F9/12 , B66C23/86 , F15B1/02 , F15B7/00
CPC分类号： F15B1/024 , E02F9/128 , E02F9/202 , E02F9/2217 , F15B7/003
摘要： A swing drive system for an excavator is provided which utilizes a prime mover mechanically connected to a first hydraulic pump/motor and a second hydraulic pump/motor mechanically connected to a swing mechanism. The system includes a hydraulic circuit connecting a hydraulic fluid reservoir, a hydraulic accumulator, the first hydraulic pump/motor, and the second hydraulic pump/motor. The system is operable in one mode where the second hydraulic pump/motor acts as a pump to retard movement of the swing mechanism and pressurized hydraulic fluid from the second hydraulic pump/motor is pumped into the hydraulic accumulator. The system is operable in another mode where the pressurized fluid from the hydraulic accumulator is used to assist the prime mover in driving hydraulic consumers, including the swing drive.

5. 发明授权

EP2963190B1 Dreh- und Schwenkvorrichtung für eine Baumaschine 有权
标题翻译：用于建筑机械的转动和倾斜装置
公开(公告)号：EP2963190B1
公开(公告)日：2018-04-18
申请号：EP14175325.1
申请日：2014-07-01
申请人： Morath GmbH
发明人： Morath, Daniel , Morath, Wolfgang
IPC分类号： E02F9/12 , B66C23/84 , E02D17/13 , E21C29/26 , F16D55/225 , E21B7/02
CPC分类号： E02F9/128 , B66C23/84 , E21B7/024 , F16D55/225

6. 发明公开

EP2754755A3 Slewing type construction machine 有权
标题翻译：回转式建筑机械
公开(公告)号：EP2754755A3
公开(公告)日：2018-03-14
申请号：EP13198336.3
申请日：2013-12-19
申请人： Kobelco Construction Machinery Co., Ltd.
发明人： Tajima, Kazuharu , Ueda, Koji
IPC分类号： E02F9/12 , F15B11/04
CPC分类号： F15B11/0445 , E02F9/128 , F15B11/0406 , F15B2211/329 , F15B2211/50527 , F15B2211/6316 , F15B2211/6336 , F15B2211/6355 , F15B2211/7058 , F15B2211/715 , F15B2211/853
摘要： Provided is a slewing type construction machine including an upper slewing body and a slewing speed sensor that detects a slewing speed of the upper slewing body, the construction machine enabling accurate control to be achieved regardless of an error in output from the slewing speed sensor. The construction machine includes an upper slewing body, a slewing motor (8), a hydraulic pump (7), a control valve (10), a slewing operation device (11), a slewing brake (12), a slewing speed sensor (27), a slewing operation detector (26) that detects an operation applied to the slewing operation device to output a slewing operation signal, and a controller (17). The controller (17) stores, during a slewing operation, a slewing speed detected by the slewing speed sensor (27) at set time intervals, actuates the slewing brake (12) based on a neutral return operation of the slewing operation device (11), and resets a stored value of the slewing speed that is stored during actuation of the slewing brake, to zero.
摘要翻译：本发明提供一种回转式施工机械，该回转式施工机械具备上部回转体和检测上部回转体的回转速度的回转速度传感器，能够与回转速度传感器的输出误差无关地实现正确的控制。该建筑机械具有上部回转体，回转马达（8），液压泵（7），控制阀（10），回转操作装置（11），回转制动器（12），回转速度传感器旋转操作检测部（26），检测施加于旋转操作装置的旋转操作信号的输出;以及控制部（17）。在旋转操作期间，控制器（17）以设定的时间间隔存储由旋转速度传感器（27）检测的旋转速度，基于旋转操作装置（11）的中立返回操作来致动旋转制动器（12）并且将在回转制动器的致动期间存储的回转速度的存储值重置为零。

7. 发明授权

EP1813729B1 ROTATION CONTROL DEVICE AND CONSTRUCTION MACHINE 有权
标题翻译：转动控制装置及建筑机械
公开(公告)号：EP1813729B1
公开(公告)日：2017-04-19
申请号：EP05807015.2
申请日：2005-11-16
申请人： Komatsu Ltd.
发明人： KAWAGUCHI, Tadashi , MORINAGA, Jun
IPC分类号： E02F9/20 , E02F9/22 , B66C23/84 , H02P7/00 , H02P23/00 , E02F9/12
CPC分类号： E02F9/207 , E02F9/123 , E02F9/128 , E02F9/2292 , E02F9/2296 , H02P23/20

8. 发明公开

EP2672023A4 ROTATION-TYPE WORKING MACHINE 审中-公开
标题翻译：旋转加工机
公开(公告)号：EP2672023A4
公开(公告)日：2017-04-12
申请号：EP11857828
申请日：2011-12-28
申请人： KOBELCO CONSTR MACH CO LTD
发明人： HIROZAWA MITSUNORI
IPC分类号： E02F9/12 , B60L1/00 , B60L7/10 , B60L11/14 , B60L11/18 , E02F9/20 , E02F9/22 , E02F9/26 , H02J7/00
CPC分类号： H02P27/00 , B60L1/003 , B60L1/20 , B60L7/10 , B60L11/14 , B60L11/1862 , B60L2200/42 , B60L2240/421 , B60L2240/545 , B60L2240/80 , E02F9/128 , E02F9/2091 , E02F9/2095 , E02F9/268 , Y02T10/642 , Y02T10/70 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y02T10/7077 , Y02T10/92
摘要： A slewing-type working machine is capable of preventing a electric storage device from being overcharged while obtaining an appropriate slewing braking force by efficiently regenerating slewing energy during slewing braking. The slewing-type working machine includes: a electric storage device 16 capable of being charged with regenerative electric power for regenerating slewing energy of a upper slewing body while functioning as an electric power source for an electric slewing motor 18; a electric storage device 16 and electric storage device controller 22 detecting whether the electric storage device is under a normal condition with sufficient capacity to regenerate the slewing energy or under an abnormal condition without sufficient capacity; and control means 17 controlling a velocity of the electric slewing motor 18 based on a result of detection by the electric storage device 16 and electric storage device controller 22, wherein the control means 17 performs a velocity limiting control for limiting a maximum velocity of the electric slewing motor 18 when the electric storage device 16 is under the abnormal condition.

9. 发明授权

EP2280191B2 Antriebseinheit mit Überlastschutz zum Antrieb eines Zahnkranzes, Set aus mehreren derartigen Antriebseinheiten sowie Vorrichtung enthaltend eine derartige Antriebseinheit 有权
标题翻译：具有过载保护驱动单元，用于驱动环形齿轮组多个这样的驱动单元和设备，其包括这样的驱动单元的
公开(公告)号：EP2280191B2
公开(公告)日：2017-03-15
申请号：EP10007020.0
申请日：2010-07-07
申请人： Liebherr-Components Biberach GmbH
发明人： Hausladen, Norbert, Dipl.-Ing. , Sedlmaier, Matthias, Dipl.-Ing.
IPC分类号： F16H35/10 , F16D9/08 , F03D80/00 , E02F9/12 , B66D1/58
CPC分类号： E02F9/123 , B66C23/86 , B66D1/14 , B66D1/58 , E02F9/128 , F03D80/00 , F16D7/044 , F16D7/08 , F16D9/08 , F16H35/10 , F16H2035/103 , Y02E10/722 , Y10T74/19614 , Y10T74/19684 , Y10T74/19847 , Y10T403/11

10. 发明授权

EP2626587B1 WET BRAKE DEVICE 有权
标题翻译：湿式制动装置
公开(公告)号：EP2626587B1
公开(公告)日：2016-11-23
申请号：EP11830551.5
申请日：2011-09-29
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： YABUUCHI Yoshitomo , NIIDOME Takashi , KOMARU Yutaka
IPC分类号： F16D55/36 , F16D65/853 , F16D69/00 , B66C23/84 , E02F9/12 , F16D121/06
CPC分类号： F16D55/40 , B66C23/84 , E02F9/128 , F16D55/36 , F16D65/853 , F16D2055/0058 , F16D2065/783 , F16D2069/004 , F16D2121/06

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