公开(公告)号：EP4426953A1

公开(公告)日：2024-09-11

申请号：EP22809416.5

申请日：2022-10-26

申请人： KraussMaffei Technologies GmbH

发明人： MOSER, Stefan ,  GREGER-GÜRBÜZ, Sina ,  FRUTH, Sebastian

IPC分类号： F15B19/00

CPC分类号： B29C45/82 ,  F04B51/00 ,  F04B2201/080320130101 ,  F04B2205/0920130101 ,  F04B49/08 ,  F04B49/10 ,  F15B19/005 ,  F15B2211/2051520130101 ,  F15B2211/2053820130101 ,  F15B2211/630920130101 ,  F15B2211/63320130101 ,  F15B2211/633320130101 ,  F15B2211/633620130101 ,  F15B2211/2054620130101 ,  F15B2211/705320130101 ,  F15B2211/705820130101 ,  F15B2211/714220130101 ,  F15B2211/713520130101 ,  F15B2211/86520130101 ,  F15B2211/8720130101 ,  F15B2211/863320130101 ,  F15B2211/86420130101 ,  F15B2211/630620130101 ,  F15B2211/631320130101 ,  B29C2045/82620130101

公开(公告)号：EP2990544B1

公开(公告)日：2019-05-01

申请号：EP15186440.2

申请日：2012-03-05

申请人： Eaton Corporation

发明人： Yuan, Qinghui ,  Rannow, Michael Berne ,  Gehlhoff, Wade Leo ,  Schottler, Christoph William ,  Mahulkar, Vishal

IPC分类号： E02F9/22 ,  E02F9/26 ,  B66F9/22 ,  F15B20/00 ,  G05B23/00 ,  B66F11/04 ,  F15B19/00 ,  G05B23/02

CPC分类号： E02F9/268 ,  E02F9/226 ,  E02F9/2278 ,  E02F9/2296 ,  E02F9/267 ,  F15B19/002 ,  F15B19/005 ,  G05B23/0275 ,  G05B23/0286 ,  G05B23/0289

摘要： The present disclosure relates to fault detection, isolation and reconfiguration schemes, architectures and methods for use in electrohydraulic actuation systems for construction equipment. In one embodiment, a supervisory controller adapted to interface with a main controller of the construction vehicle is provided. A plurality of control nodes that interface with the supervisory controller are also disclosed, each of which includes pressure and position sensors. The nodes also include a first actuator control node for controlling operation of a first hydraulic actuator, a second actuator control node for controlling operation of a second hydraulic actuator, and a pump control node. The control system has an architecture in which faults are detected and isolated at the supervisory controller level and, where possible, within each of the control nodes at a sensor level, a component level, and a subsystem level.

公开(公告)号：EP3214320B1

公开(公告)日：2018-12-26

申请号：EP17157834.7

申请日：2017-02-24

申请人： Magneti Marelli S.p.A.

发明人： RUO RUI, Elena ,  AMISANO, Fabrizio ,  MEDICO, Giuseppe

IPC分类号： F15B19/00 ,  F16H61/12

CPC分类号： F15B19/005 ,  F15B20/005 ,  F16H61/0021 ,  F16H61/12 ,  F16H2061/305

摘要： In order to verify a possible reduction of the oil level below a given alert level in a hydraulic actuation system, in particular a hydraulic actuation system for a vehicle transmission, comprising at least one hydraulic actuator (HA) and a hydraulic control circuit for controlling said at least one hydraulic actuator (HA), wherein the hydraulic control circuit comprises a pump (P), a motor (M) for driving the pump (P), an accumulator (A) arranged to be charged by the pump (P) and a pressure sensor (PS) for measuring the pressure in the circuit, a method is proposed comprising the steps of: a) charging the accumulator (A) by driving the pump (P) through the motor (M); b) measuring the pressure in the circuit by means of the pressure sensor (PS) while the accumulator (A) is being charged; and c) generating an error signal if the pressure value measured at step b) does not reach, within a given period of time from the beginning of step a), a given threshold pressure value (T p ).

公开(公告)号：EP3350455A1

公开(公告)日：2018-07-25

申请号：EP15766121.6

申请日：2015-09-15

申请人： Festo AG & Co. KG

发明人： MAICHL, Martin ,  BERNER, Michael

IPC分类号： F15B19/00 ,  F15B13/08

CPC分类号： F15B19/005 ,  F15B13/085 ,  F15B13/0857 ,  F15B13/086 ,  F15B13/0864 ,  F15B13/0867

摘要： The invention relates to a valve control means for electrical actuation of at least one valve drive (51a to 51h; 16), having a control circuit (28; 89; 109) which is configured to influence an electric energy flow between an electric source and the valve drive (51a to 51h; 116), and which comprises a bus interface (20) for communication with a superordinate control arrangement (2), and a sensor means (41, 42, 43, 44; 94; 111, 112) which is configured to determine a physical quantity of the energy flow which can be varied by electrical actuation of the valve drive (51a to 51h; 116), and is configured to provide the control circuit (28; 89; 109) with a sensor signal which is dependent on the determined physical quantity. It is provided according to the invention that the control circuit (28; 89; 109) is configured to determine a condition of the valve drive (51a to 51h; 116) using the sensor signal and at least one characteristic value of a physical variable from the group comprising energy flow duration, energy flow voltage, energy flow current, fluid pressure, and is configured to communicate the condition to the bus interface (20).

公开(公告)号：EP2811173B1

公开(公告)日：2018-07-25

申请号：EP13170449.6

申请日：2013-06-04

申请人： Danfoss Power Solutions Aps

发明人： Hjorth, Henrik ,  Christensen, Erik

IPC分类号： F16K37/00

CPC分类号： F15B21/085 ,  F15B13/0867 ,  F15B19/005 ,  F16K37/0025 ,  G05B19/042 ,  G05B2219/23348 ,  G05B2219/23371 ,  G05B2219/23391 ,  G05D7/0652

摘要： A hydraulic system (1) is provided comprising a group of at least two valves (2a, 2b, 2c) connected to a bus (8), each of said valves (2a, 2b, 2c) comprising a primary memory (9a, 9b, 9c) for storing a set of parameters of the valve (2a, 2b, 2c). The service work of such a hydraulic system should be facilitated. To this end each valve (2a, 2b, 2c) comprises a secondary memory (10a, 10b, 10c) storing said set of parameters of a different valve (2b, 2c, 2a) of said group.

公开(公告)号：EP3339812A1

公开(公告)日：2018-06-27

申请号：EP18153740.8

申请日：2010-08-11

申请人： The Boeing Company

发明人： Fonda, James W. ,  Slesinski, Raymond J

IPC分类号： G01F1/115 ,  G01F15/06 ,  G01D21/00

CPC分类号： F04B51/00 ,  F01D15/10 ,  F04B2205/04 ,  F15B19/005 ,  G01D21/00 ,  G01L9/00 ,  G01L19/0007 ,  H02S10/20

摘要： A method and apparatus for monitoring a pneumatic system. A number of parameters are monitored using a monitoring device connected to the pneumatic system, an energy harvesting unit configured to generate electrical energy from a gas in the pneumatic system, and a controller. The monitoring device comprises a number of sensors configured to detect the number of parameters. The controller is in communication with the number of sensors and the energy harvesting unit and is configured to process measurements for the number of parameters detected by the number of sensors and control operation of the energy harvesting unit. The number of sensors and the controller are powered by the energy harvesting unit. The monitoring device is powered using the electrical energy generated by the energy harvesting unit.

公开(公告)号：EP3169858A4

公开(公告)日：2018-04-04

申请号：EP15822402

申请日：2015-07-15

申请人： EATON CORP

发明人： WANG MENG ,  RANNOW MICHAEL BERNE

IPC分类号： E04G21/04 ,  B66C13/06 ,  F15B19/00

CPC分类号： F15B21/008 ,  B66C13/066 ,  E04G21/0454 ,  F15B11/003 ,  F15B11/042 ,  F15B11/0445 ,  F15B19/005 ,  F15B2211/30515 ,  F15B2211/3057 ,  F15B2211/329 ,  F15B2211/355 ,  F15B2211/50509 ,  F15B2211/5059 ,  F15B2211/526 ,  F15B2211/6313 ,  F15B2211/632 ,  F15B2211/634 ,  F15B2211/6658 ,  F15B2211/855 ,  F15B2211/8616 ,  F15B2211/8636 ,  F15B2211/8752 ,  F16K31/426

摘要： A hydraulic system (600) and method for reducing boom dynamics of a boom (30), while providing counter-balance valve protection, includes a hydraulic actuator (110), first and second counter-balance valves (300, 400), first and second independent control valves (700, 800), and first and second blocking valves (350, 450). The actuator includes first and second corresponding chambers. In a first mode, the second counter-balance valve is opened by the first control valve, and the first counter-balance valve is opened by the second control valve. In a second mode, at least one of the counter-balance valves is closed. A meter-out control valve (800, 700) may be operated in a flow control mode, and/or a meter-in control valve (700, 800) may be operated in a pressure control mode. Boom dynamics reduction may occur while the boom is in motion (e.g., about a worksite). By opening the counter-balance valves, sensors at the control valves may be used to characterize external loads. The control valves may respond to the external loads and at least partially cancel unwanted boom dynamics. The system may further detecting faults in actuators with counter-balance valves and prevent any single point fault from causing a boom falling event and/or mitigate such faults.

公开(公告)号：EP2469104B1

公开(公告)日：2018-02-07

申请号：EP11191949.4

申请日：2011-12-05

申请人： United Technologies Corporation

发明人： Fugate, David ,  Bullis, Frank E. ,  Johnson, Christopher A.

IPC分类号： F15B13/00 ,  F15B19/00

CPC分类号： F15B19/005

摘要： An example method of initiating a maintenance action on a component includes monitoring (54) an electrical current required to maintain a steady state position. The method then initiates a maintenance action (62) on the component based on the monitored current.

公开(公告)号：EP3268618A1

公开(公告)日：2018-01-17

申请号：EP15730738.0

申请日：2015-06-15

申请人： Festo AG & Co. KG

发明人： MÖDINGER, Uwe ,  SCHNEIDER, Mathias ,  MESSERSCHMIDT,Karl ,  FEILER, Andreas

IPC分类号： F15B15/06 ,  F15B15/28 ,  F15B19/00 ,  F16K31/163 ,  F16K37/00 ,  G01D18/00

CPC分类号： F15B19/002 ,  F15B15/065 ,  F15B15/2807 ,  F15B19/005 ,  F15B2211/85 ,  F15B2211/8752 ,  F16K31/1225 ,  F16K31/1635 ,  F16K31/54 ,  F16K37/0033 ,  F16K37/0041 ,  G01D5/145 ,  G01D18/00

摘要： The invention relates to a rotary drive (40; 50) for actuating a valve member of a valve fitting (24), having a housing (1), which has a drive mechanism and a rotatably mounted drive shaft (6) that can be driven by the drive mechanism, which rotary drive shaft (6) can be coupled to the valve member, and a position detection device for detecting a position of the drive shaft, wherein the position detection device has a magnet module (23) attached rotationally-fixed to the drive shaft and a sensor module (36; 37) mounted in or on the housing, which is configured to detect a magnetic field value according to the magnetic field generated by the magnet module,
characterized in that the magnet module and/or the sensor module is attached such that it can be removed from the rotary drive, and that the rotary drive comprises a control device, which is configured according to the magnetic field value to determine that the magnet module or the sensor module is removed from the rotary drive or attached to the rotary drive, and, depending on the determination, to cause the rotary drive to be placed in a predefined operating state.

公开(公告)号：EP2638439A4

公开(公告)日：2018-01-10

申请号：EP11840410

申请日：2011-11-04

申请人： HONEYWELL INT INC

发明人： KN DINESH KUMAR ,  SUNDARESH NAGARAJA ,  GIRITHARAN KARTHIK ,  RAJAGOPAL SRINIVASAN ,  KINAGE AMOL ,  NAIR RAKESH DAMODARAN ,  JAGANNATHAN SAI KRISHNAN ,  INGAWALE SUNIL M ,  KUMAR SACHIN

IPC分类号： G05B9/03 ,  F15B19/00 ,  G01R31/06 ,  G01R31/28

CPC分类号： G01R31/06 ,  F15B19/005 ,  G01R31/2829 ,  G05B9/03

摘要： A system, apparatus and method are provided for testing a secondary servo control circuit in a redundant control configuration. A first circuit is configured to receive a control signal and to control an attribute of an actuator based on the control signal using a first control input of the actuator. A second circuit is configured to test operation of an actuator circuit using a test signal. The actuator circuit includes at least part of the second circuit and a second control input of the actuator. The test signal is selected to avoid causing independent motion of the actuator. The actuator could be a dual coil servo valve, and the test signal could be a current (such as a DC current, an AC current, or a pulsed current) having a magnitude less than a bias current of the actuator.