公开(公告)号：EP4174315A1

公开(公告)日：2023-05-03

申请号：EP22204395.2

申请日：2022-10-28

Applicant: Danfoss Power Solutions Inc.

Inventor： Traeger Hansen, Thomas ,  Nielsen, Simon

IPC: F04B49/00 ,  F04B49/06

Abstract: A method for calibrating an electrohydraulic pump (18) in a system (10) comprising a machine (12) having a propel system (14) that includes an engine (16) connected to an electrohydraulic pump. A micro-controller (20) having software (22) and an input device (24) is connected to a plurality of sensors (26) mounted about the machine. The software uses a plurality of parameters to convert internal analog drive signals into analog output signals to control the electrohydraulic pump and motion of the machine where the parameters include a forward start current value and a reverse start current value.

公开(公告)号：EP4023889A1

公开(公告)日：2022-07-06

申请号：EP21188828.4

申请日：2021-07-30

Applicant: Danfoss Power Solutions Inc.

Inventor： NIELSEN, Elias

IPC: F04D27/00 ,  F04D25/04

Abstract: Hydraulic fan system and method for controlling the speed of a hydraulic fan system. The fan system comprises a fan operated by a hydraulic motor which is driven by a hydraulic variable displacement pump comprising a displacement volume adjusting element. A tilt angle of the displacement volume adjusting element can be adjusted by controlling a tilt current supplied to an electronic displacement control unit. The hydraulic fan system further comprises means for determining the volumetric flow rate of the pump and a control unit comprising: a signal connection to the means for determining the volumetric flow rate of the pump, a signal connection to a fan speed setting device, and a fan speed calculating unit for calculating a fan speed from the determined volumetric flow rate, a fan speed error determining unit for determining a fan speed error by comparing the calculated fan speed to the fan speed set by the fan speed setting device. The control unit can supply an adapted tilt current to the electronic displacement control unit in order to adjust the tilt angle of the displacement volume adjusting device, such that the volumetric flow rate can be adapted in order to reduce the fan speed error.

公开(公告)号：EP3935285A1

公开(公告)日：2022-01-12

申请号：EP20718864.0

申请日：2020-03-04

Applicant: Danfoss Power Solutions Inc.

Inventor： BUTLER, Molli ,  HERRERA, Marcus

IPC: F15B19/00 ,  E02F9/26 ,  F16H61/4192

公开(公告)号：EP3795756A1

公开(公告)日：2021-03-24

申请号：EP20187199.3

申请日：2020-07-22

Applicant: Danfoss Power Solutions Inc.

Inventor： Daley, Christian S.

IPC: E02F9/20 ,  E02F3/43

Abstract: Automatic tilt command system of a hydraulically driven boom moveably connected with one end to a chassis of a working machine, wherein a tiltable tool is attachable to the other end. The system further comprises a first electronic control valve for controlling a fluid flow to and from a boom lift cylinder for moving of the boom and a second electronic control valve for controlling a fluid flow to and from a tilt cylinder for tilting the tool. A control unit receives input signals with regard to moving the boom and transmits based on the received input signals actuating signals to the first electronic control valve in order to move the boom. In parallel the control unit transmits tilting signals to the second electronic control valve which are based on a predetermined fluid flow ratio defined by the fluid flow for the boom movement and the fluid flow for tool levelling, so that the tool maintains its inclination angle with respect to the horizontal.

公开(公告)号：EP3392978A1

公开(公告)日：2018-10-24

申请号：EP18160535.3

申请日：2018-03-07

Applicant: Danfoss Power Solutions Inc.

Inventor： LU, Yan

IPC: H01R13/52

CPC classification number: H01R13/521 ,  F16J15/06 ,  H01R13/5202 ,  H01R13/5208 ,  H01R13/5216 ,  H01R13/5219 ,  H01R13/665

Abstract: A sealing gasket (34) for use in electrical connector (20) comprises a planar base (43) and a plurality of bosses (45) extending in a direction away from the planar base (43). The plurality of bosses (45) each include a first opening portion extending from the base (43) in a direction towards an opposed end of the bosses (45), and a second opening portion extending from the opposed end of the bosses (45) in a direction towards the base. An intermediate membrane (54) is formed between the first and second opening portions (52). An electrical connector (20) is also disclosed.

公开(公告)号：EP3392121A1

公开(公告)日：2018-10-24

申请号：EP18160358.0

申请日：2018-03-06

Applicant: Danfoss Power Solutions Inc.

Inventor： SPRANGER, Brian

IPC: B62D11/00

Abstract: According to the present disclosure, a system (12) and method for providing stability control to a machine (10) includes generating a yaw signal at a gyroscope (26) disposed on the machine (10) and receiving the yaw signal at a controller (20) in communication with the gyroscope (26). The controller is also in communication with a user input that generates control signals for driving at least one plant of the machine (10). The controller (20) is configured to alter the control signals provided to the at least one plant from the user input based at least in part on the yaw signal.

公开(公告)号：EP3648418A1

公开(公告)日：2020-05-06

申请号：EP19203727.3

申请日：2019-10-17

Applicant: Danfoss Power Solutions Inc.

Inventor： BJOERN, Fredrik ,  OLESEN, Henrik

IPC: H04L12/66 ,  H04L12/841

Abstract: A system and method for transmitting data between a first device on a first network and a second device on a second network includes positioning a gateway intermediate the first network and second network, where the gateway intercepts data transmissions sent from the first device to the second device in a first packet size, converts the data transmissions from the first packet size to a second packet size, and delivers the data transmissions to the second device in the second packet size.

公开(公告)号：EP3385536A1

公开(公告)日：2018-10-10

申请号：EP18165932.7

申请日：2018-04-05

Applicant: Danfoss Power Solutions Inc.

Inventor： FRANTZ, Stephen

IPC: F04B49/00 ,  F03C1/06 ,  F03C1/40 ,  F16H61/46

CPC classification number: F15B13/02 ,  B60T13/245 ,  F03C1/0668 ,  F03C1/0686 ,  F04B49/002 ,  F15B11/04 ,  F16H61/423 ,  F16H61/46 ,  F16H61/47

Abstract: A hydraulic unit includes a driving mechanism whose displacement volume is adjustable to two operational states by means of a positionable adjustment element. The adjustment element can be positioned by a servo piston of a servo unit into a first, initial position and a second, operative position. A first front face and a second front face of the servo piston, which are opposing each other, can be pressurized individually with pressurized hydraulic fluid in order to position the servo piston at either end position of a servo cylinder of the servo unit. The servo piston is of a stepped design thereby forming a ring-shaped damping surface opposing the first front face. In the servo cylinder a ring-shaped shoulder surface is formed opposing the damping surface such that a damping volume is formed in the servo cylinder by the damping surface, the shoulder surface and the servo cylinder.

公开(公告)号：EP3102824A1

公开(公告)日：2016-12-14

申请号：EP15710588.3

申请日：2015-01-28

Applicant: Danfoss Power Solutions Inc.

Inventor： HANSEL, Jeffrey ,  WRIGHT, Joseph

IPC: F04B1/20 ,  F04B1/32

CPC classification number: F15B13/00 ,  F04B1/2078 ,  F04B1/295 ,  F04B1/324

Abstract: A servo piston assembly having a servo piston body mounted within a servo piston cylinder. A pair of bushings are mounted within each end of the servo piston body. An elongated bore extends through the servo piston body and receives a guide rod that extends out of the servo piston body and is received within the servo piston cylinder.

公开(公告)号：EP4505069A1

公开(公告)日：2025-02-12

申请号：EP23705643.7

申请日：2023-02-10

Applicant: Danfoss Power Solutions Inc.

Inventor： TVARUZEK, Jaromir ,  WOJNAR, Adam

IPC: F04B1/2021 ,  F04B1/30 ,  F04B49/00