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41.发明授权公开(公告)号：US11535266B2
公开(公告)日：2022-12-27
申请号：US16630697
申请日：2018-07-12
Applicant: Danfoss Power Solutions II Technology A/S
Inventor： Yolanda Petre , Peter Maria Lauer
IPC: B60W50/035 , G05B19/042
Abstract: A driving system for a vehicle includes one or more sensors, a controller, an actuator, and a safety shut down switch. The controller includes a main processing circuit, a main processing module, an actuator drive, a safety processing circuit, a safety processing module, and a safety shutdown switch. The safety processing module is independent of the main processing module, and the safety processing module is configured to perform one or more safety functions.
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42.发明申请公开(公告)号：US20220364326A1
公开(公告)日：2022-11-17
申请号：US17832203
申请日：2022-06-03
Applicant: Danfoss Power Solutions II Technology A/S
Inventor： Aaron H. JAGODA
Abstract: A mobile hydraulic system includes a hydraulic actuator coupled to a load, and a control unit coupled to the load and/or to the hydraulic actuator. The control unit is adapted to anticipate an over-center transition of the load relative to a gravity vector prior to the over-center transition through the use of sensors configured with accelerometers, gyroscopes and magnetometers. In some examples, the over-center transition is from an overrunning driving of the load to a passive driving of the load. In some examples, the over-center transition is from a passive driving of the load to an overrunning driving of the load. In some examples, the control unit is adapted to control change in a metered flow through one or more ports of the associated actuator to minimize and/or prevent one or more hydraulic effects of the anticipated over-center transition. In some examples, the control unit controls the metered flow by causing one or more actuators (e.g., a solenoid) to shift one or more valve positions to change the flow through one or more ports of the associated actuator.
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公开(公告)号：US20220307595A1
公开(公告)日：2022-09-29
申请号：US17606104
申请日：2020-04-24
Applicant: Danfoss Power Solutions II Technology A/S
Inventor： Avinash Amboji , Suhas Dhakate , Mohammedsaeed Inamdar , Shashishekar Ms
IPC: F16H61/431 , F15B11/17 , F15B13/02 , F15B15/18 , F16H61/452 , F16H61/4035 , F16H61/4157 , B60W10/18 , B60W10/08 , B60W10/30 , B60W30/188 , B60W30/18 , B60P3/16 , F16H61/47 , F16H61/4148 , F16H61/4008 , B28C5/42
Abstract: The present disclosure relates to a hydraulic drive system having a hydraulic circuit architecture operable in first and second modes. In a first mode, a main hydraulic pump (22) is used to drive a hydraulic actuator (24) via a closed hydraulic circuit, and a charge pump (42) provides charge flow to the closed hydraulic circuit. In a second mode the main pump set to zero displacement and the charge pump (42) is used to drive the hydraulic actuator (24).
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44.发明申请公开(公告)号：US20220259829A1
公开(公告)日：2022-08-18
申请号：US17625197
申请日：2020-07-01
Applicant: Danfoss Power Solutions II Technology A/S
Inventor： Nilesh Anant Sutar
IPC: E02F9/22
Abstract: The present disclosure relates to systems that use a single proportional valve to control raising and lowering of a load. The present disclosure also relates to proportional valves that provide proportional flow control in first and second opposite flow directions through the proportional valve.
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45.发明授权公开(公告)号：US11384510B2
公开(公告)日：2022-07-12
申请号：US17256834
申请日：2019-06-29
Applicant: Danfoss Power Solutions II Technology A/S
Inventor： Aaron H. Jagoda
Abstract: A mobile hydraulic system includes a hydraulic actuator coupled to a load, and a control unit coupled to the load and/or to the hydraulic actuator. The control unit is adapted to anticipate an over-center transition of the load relative to a gravity vector prior to the over-center transition through the use of sensors configured with accelerometers, gyroscopes and magnetometers. In some examples, the over-center transition is from an overrunning driving of the load to a passive driving of the load. In some examples, the over-center transition is from a passive driving of the load to an overrunning driving of the load. In some examples, the control unit is adapted to control change in a metered flow through one or more ports of the associated actuator to minimize and/or prevent one or more hydraulic effects of the anticipated over-center transition. In some examples, the control unit controls the metered flow by causing one or more actuators (e.g., a solenoid) to shift one or more valve positions to change the flow through one or more ports of the associated actuator.
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Patent Agency Ranking
公开(公告)号：US12188597B2
公开(公告)日：2025-01-07
申请号：US17997302
申请日：2021-04-28
Applicant: Danfoss Power Solutions II Technology A/S
Inventor： Amit Ramesh Shende , Sébastien Lafond , Joffrey Boutherin
Abstract: An improved quick release coupling is provided. The quick release coupling enables higher fluid flow rates and lower pressure drops. The quick release coupling is configured to be a connection and disconnection under high pressure conditions on one or both of the male and the female sides of the coupling. The quick release coupling enables intentional manual disconnection as well as breakaway disconnection under high working pressures.
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公开(公告)号：US11713778B2
公开(公告)日：2023-08-01
申请号：US17613190
申请日：2020-05-21
Applicant: Danfoss Power Solutions II Technology A/S
Inventor： Meng Wang , Mohd Azrin Mohd Zulkefli
CPC classification number: F15B15/18 , F15B21/082 , F15B2211/20515 , F15B2211/20561 , F15B2211/20569 , F15B2211/27 , F15B2211/3057 , F15B2211/613 , F15B2211/6313 , F15B2211/6658
Abstract: The present disclosure relates to a blended or hybrid power system with increased operating efficiency. The blended power system combines the advantages of electrical power with the advantages of hydraulic power when delivering power to a hydraulic actuator. The hydraulic power provides higher power density and the electrical power provides high efficiency and control accuracy in the blended power system. In a blended power system, a control system may be configured to select different modes of operation based on the loads encountered in the combined hydraulic and electrohydrostatic system. The blended power system also allows for smooth and uninterrupted transitions between the different modes of operation within the blended power system. Thus, jerkiness in the blended power system may be minimized or eliminated.
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公开(公告)号：US11613451B2
公开(公告)日：2023-03-28
申请号：US16734899
申请日：2020-01-06
Applicant: DANFOSS POWER SOLUTIONS II Technology A/S
Inventor： Vincent Joseph Duray , Jerry Carl Weber
Abstract: The present disclosure relates to a hydraulic system including a variable displacement hydraulic motor for lifting and lowering a load. The hydraulic motor has a high operating speed and a low operating speed. The system also includes an actuator for controlling whether the hydraulic motor is operating at the high or low speed, and a pressure sensor for sensing when a system pressure corresponding to the hydraulic motor exceeds a threshold pressure value. The system further includes a speed control system that controls the actuator such that the hydraulic motor is prevented from operating at the first operating speed when the system pressure exceeds the threshold pressure value.
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公开(公告)号：US11566642B2
公开(公告)日：2023-01-31
申请号：US17303465
申请日：2021-05-28
Applicant: Danfoss Power Solutions II Technology A/S
Inventor： Meng (Rachel) Wang , Michael Berne Rannow
IPC: F15B21/00 , F15B11/044 , B66C13/06 , E02F9/22 , F15B11/00 , E04G21/04 , F16F15/023 , F16F15/027
Abstract: 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 control valves (700, 800), and first and second blocking valves (350, 450). A net load (90) is supported by a first chamber (116, 118) of the hydraulic actuator, and a second chamber (118, 116) of the hydraulic actuator may receive fluctuating hydraulic fluid flow from the second control valve to produce a vibratory response (950) that counters environmental vibrations (960) on the boom. The first blocking valve prevents the fluctuating hydraulic fluid flow from opening the first counter-balance valve. The first blocking valve may drain leakage from the first counter-balance valve.
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公开(公告)号：US11536298B2
公开(公告)日：2022-12-27
申请号：US17562449
申请日：2021-12-27
Applicant: Danfoss Power Solutions II Technology A/S
Inventor： QingHui Yuan
Abstract: A system for damping mass-induced vibrations in a machine having a long boom or elongate member, the movement of which causes mass-induced vibration in such boom or elongate member. The system comprises at least one motion sensor operable to measure movement of such boom or elongate member resulting from mass-induced vibration, and a processing unit operable to control a first control valve spool in a pressure control mode and a second control valve spool in a flow control mode in order to adjust the hydraulic fluid flow to the load holding chamber of an actuator attached to the boom or elongate member to dampen the mass-induced vibration. The system further comprises a control manifold fluidically interposed between the actuator and control valve spools that causes the first and second control valve spools to operate, respectively, in pressure and flow control modes.
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