Patent application number | Description | Published |
20090319133 | METHOD FOR CONTROLLING A MOVEMENT OF A VEHICLE COMPONENT - A method is provided for controlling movement of a first vehicle component relative to a second vehicle component, including the steps of determining a deceleration rate of the first vehicle component in order to achieve a predetermined final speed at a final position, determining a starting position for initiating the deceleration on the predetermined final speed, the final position and the determined deceleration rate and controlling deceleration of the component from the starting position to the final position according to the determined acceleration rate. | 12-24-2009 |
20100179735 | A METHOD AND A SYSTEM FOR CONTROLLING AN INPUT POWER - A method for controlling power to at least one power consuming device includes detecting at least one first operational parameter and at least one second operational parameter, establishing a power value based on the detected values of the first and second operational parameters, and controlling the power consuming device in response to the established power value. | 07-15-2010 |
20100242464 | LOAD SENSING SYSTEM, WORKING MACHINE COMPRISING THE SYSTEM, AND METHOD FOR CONTROLLING A HYDRAULIC FUNCTION - A load sensing system includes a first assembly of actuators for controlling a first hydraulic function, a pump adapted to supply the actuators with pressurized hydraulic fluid, an electrically controlled valve adapted to control the output pressure of the pump via a hydraulic signal, a first pressure sensor for detecting a load pressure of the first actuator assembly, and a control unit adapted to receive a signal with information about the load pressure detected by the first pressure sensor and to generate a control signal, corresponding to the detected load pressure, to the electrically controlled valve. | 09-30-2010 |
20100263362 | METHOD FOR CONTROLLING A WORKING MACHINE - A method for controlling a working machine including a hydraulic system for controlling a plurality of work functions, including lift and tilt of an implement, includes the steps of determining a maximum pressure of a hydraulic fluid for performing a certain task with the implement individually for at least one of the work functions, and delivering the hydraulic fluid, pressurized at most to the determined maximum pressure, to the work function. | 10-21-2010 |
20100263735 | METHOD FOR WHEN NECESSARY AUTOMATICALLY LIMITING A PRESSURE IN A HYDRAULIC SYSTEM DURING OPERATION - A method is provided for, when necessary, automatically limiting a pressure in a hydraulic system during operation. A system is arranged to deliver pressurized hydraulic fluid to at least one fluid actuated device arranged to perform a work function, where the procedure includes sensing a pressure in at least one position of the system, comparing the detected pressure value, or an associated value, with a first predefined pressure limit, and opening a communication of fluid between the fluid actuated device and a reservoir through a first conduit if the sensed pressure value, or an associated value, exceeds the predefined limit. | 10-21-2010 |
20100268410 | SYSTEM, WORKING MACHINE COMPRISING THE SYSTEM, AND METHOD OF SPRINGING AN IMPLEMENT OF A WORKING MACHINE DURING TRANSPORT - A system for a working machine is adapted for springing the movement of a load during transport and includes at least one hydraulic cylinder for operating the load, an accumulator, and a valve adapted to control a flow communication between the hydraulic cylinder and the accumulator. The system includes a first control valve arranged on a conduit connecting to the piston side of the hydraulic cylinder, a second control valve arranged on a conduit connecting to the piston rod side of the hydraulic cylinder, a first pressure sensor for detecting a load pressure of the hydraulic cylinder, a second pressure sensor for detecting a charge pressure of the accumulator, and a control unit adapted to receive signals with information about the pressures detected by the pressure sensors and to generate control signals corresponding to the detected pressures for controlling the springing function. | 10-21-2010 |
20110093229 | METHOD FOR CALIBRATING SENSORS - A method for calibrating sensors in a system including a plurality of sensors which are arranged so that they can be subjected to the same load includes the steps of detecting the level of an operating parameter for a certain load level individually by at least two of the sensors, calculating a mean value of the operating parameter for the sensors for the load level, determining a deviation from the mean value for each of the sensors, and saving the value of the deviations for use in operation of the system. | 04-21-2011 |
20110301781 | METHOD FOR CALIBRATING AN ANGLE SENSOR AND VEHICLE WITH AN ANGLE SENSOR - A method for calibration of at least one angle sensor sensing an angular position of a pivotable element rotatable from a first position to a maximum position is provided, wherein during an operation time of the pivotable element at least one adjustable angle corresponding to an extreme value of the angle sensor is automatically maintained or updated depending on at least one measured angle determined by the at least one angle sensor. | 12-08-2011 |
20120067432 | HYDRAULIC SYSTEM AND A WORKING MACHINE COMPRISING SUCH A HYDRAULIC SYSTEM - A hydraulic system for a working machine includes at least one work function and a control valve unit for controlling hydraulic fluid to and from the work function, and a recovery unit connected to a return port of the control valve unit for recovering energy from the work function. The system further includes an arrangement for limiting the pressure of the hydraulic fluid at the return port, which pressure limiting arrangement has a pilot-operated valve adapted to set a maximum allowable pressure at the return port of the control valve unit. The pressure is variable by controlling the pilot-operated valve by a control unit. | 03-22-2012 |
20120233993 | METHOD FOR CONTROLLING A HYDRAULIC SYSTEM OF A WORKING MACHINE - A method is provided for controlling a hydraulic system of a working machine, which hydraulic system includes a first hydraulic machine for providing hydraulic fluid to a first actuator of the working machine, and a second hydraulic machine for providing hydraulic fluid to a second actuator of the working machine and for providing hydraulic fluid to the first actuator. The method includes using a first control mode, and in the first control mode allowing a flow of hydraulic fluid from the second hydraulic machine to the second actuator, wherein the pump pressure of the second hydraulic machine is selected based on the load pressure of the second actuator independently of the load pressure of the first actuator. The method further includes using a second control mode provided that the requested flow to the first actuator exceeds a predetermined threshold value, and in the second control mode allowing a flow of hydraulic fluid from the second hydraulic machine to the first actuator, wherein the pump pressure of the second hydraulic machine is selected based on the highest value of the load pressure of the second actuator and the load pressure of the first actuator. | 09-20-2012 |
20130205765 | METHOD FOR CONTROLLING A HYDRAULIC SYSTEM OF A WORKING MACHINE - A method is provided for controlling a hydraulic system of a working machine. The hydraulic system includes a hydraulic machine for providing hydraulic fluid to one or more actuators of the working machine. The method includes receiving a signal requesting a pump pressure from the hydraulic machine based on the load pressure of a first actuator of the one or more actuators which first actuator has the highest load pressure of the one or more actuators, discriminating the pressure request from the first actuator provided that the first actuator is stalled due to overload or geometrical limitations, and controlling the hydraulic machine to provide to pump pressure based on the load pressure of a second actuator of the one or more actuators which second actuator is in operation and has the second highest load pressure of the one or more actuators, or, if no actuator in addition to the first actuator is present and in operation, controlling the hydraulic machine to provide a predetermined idle pump pressure. | 08-15-2013 |
20130297155 | METHOD FOR CONTROLLING A MOVEMENT OF A VEHICLE COMPONENT - A method is provided for controlling movement of a first vehicle component relative to a second vehicle component, including the steps of determining a deceleration rate of the first vehicle component in order to achieve a predetermined final speed at a final position, determining a starting position for initiating the deceleration on the basis of the predetermined final speed, the final position and the determined deceleration rate and controlling deceleration of the component from the starting position to the final position according to the determined acceleration rate. | 11-07-2013 |
20140144130 | ARRANGEMENT FOR CHARGING AN ACCUMULATOR - An arrangement for charging an accumulator with hydraulic fluid is provided. The accumulator is used in a hydraulic boom suspension system for a lift arm of a vehicle and the arrangement includes a first hydraulic pump arranged to supply hydraulic fluid to a hydraulic cylinder system of the lift arm, and a second hydraulic pump arranged to supply hydraulic fluid to a second hydraulic system. The second hydraulic pump is further arranged to supply hydraulic fluid for charging the accumulator. | 05-29-2014 |
20140366951 | METHOD FOR CONTROLLING LOWERING OF AN IMPLEMENT OF A WORKING MACHINE - A method for controlling lowering of an implement of a working machine is provided. The working machine has a hydraulic system including a hydraulic cylinder for moving the implement and a first control valve for controlling the flow of hydraulic fluid from the piston side of the hydraulic cylinder, and a recovery unit connected to the control valve for recovering energy by receiving a return flow from the piston side of the hydraulic cylinder. The piston side of the hydraulic cylinder and the control valve are connected to each other, and the piston rod side of the hydraulic cylinder is connected to the control valve and to the recovery unit in a point between the control valve and the recovery unit. The method includes identifying a requested lowering speed of the implement, and identifying a desired pressure at the piston side of the hydraulic cylinder and controlling the recovery unit to provide a counter pressure resulting in the desired pressure at the piston side of the hydraulic cylinder, and enabling fluid communication between the piston side of the hydraulic cylinder and the recovery unit, and between the piston side of the hydraulic cylinder and the piston rod side of the hydraulic cylinder, via the control valve, and controlling the control valve in such a way that the flow through the control valve corresponds to the requested lowering speed of the implement. | 12-18-2014 |
20150275932 | TWIN PRIORITY VALVE - A hydraulic system for a work machine including a first and a second hydraulic actuator, and a first and a second hydraulic machine for providing hydraulic fluid to at least one of the first and the second actuator via a first and a second priority valve respectively. The first and second priority valves are controlled by a pressure drop ΔP over the inlet valve of the first actuator such that when ΔP is lower than a first threshold value T | 10-01-2015 |
20150308079 | A METHOD FOR RECOVERING ENERGY AND A HYDRAULIC SYSTEM - A method is provided for recovering energy in a hydraulic system of a working machine. The hydraulic system includes at least one hydraulic cylinder for movement of a load, and a fan driven by a hydraulic motor. The file method includes pressurizing the hydraulic cylinder with a load pressure at one of the piston side and the piston rod side of the hydraulic cylinder for moving the load, the load pressure substantially exceeding a pressure difference between the piston side and the piston rod side of the hydraulic cylinder required to move the load, creating a counter pressure at the other of the piston side and piston rod side of the hydraulic cylinder, where the counter pressure is created by means of the hydraulic motor while the hydraulic motor is driven by a hydraulic return flow from the hydraulic cylinder, by creating the counter pressure by means of the hydraulic motor while the hydraulic motor is driven by a return flow of hydraulic fluid from the hydraulic cylinder, the counter pressure created by the hydraulic motor being a function of the magnitude of the return flow driving the hydraulic motor and the load on the hydraulic motor. Energy consumption of a vehicle can be reduced in a simple and cost-effective way. | 10-29-2015 |
Patent application number | Description | Published |
20140296969 | Anterior Leaflet Clip Device for Prosthetic Mitral Valve - This invention relates to a pre-configured compressible transcatheter prosthetic cardiovascular valve having an improved anterior leaflet clip device. The invention also relates to methods for deploying such a valve for treatment of a patient in need thereof. | 10-02-2014 |
20140296970 | Positioning Tool for Transcatheter Valve Delivery - This invention relates to a positioning device for delivery of a transcatheter prosthetic heart valve that comprises a ratchet rod with reference scale for accurate positioning a valve during deployment, and methods of use thereof. | 10-02-2014 |
20140296975 | Inflatable Annular Sealing Device for Prosthetic Mitral Valve - This invention relates to a pre-configured compressible transcatheter prosthetic cardiovascular valve having an improved anterior leaflet sealing component comprising an inflatable annular sealing device made of a shell of elastomeric material, stabilized tissue or synthetic material, attached to the stent, and wherein during deployment of the valve the shell is filled to form a subvalvular seal. The invention also relates to methods for deploying such a valve for treatment of a patient in need thereof. | 10-02-2014 |
20140358224 | SIX CELL INNER STENT DEVICE FOR PROSTHETIC MITRAL VALVES - This invention relates to a self-expanding wire frame for a pre-configured compressible transcatheter prosthetic cardiovascular valve, a combined inner valve-outer collar component system, and methods for deploying such a valve for treatment of a patient in need thereof. | 12-04-2014 |
20140379076 | Halo Wire Fluid Seal Device for Prosthetic Mitral Valves - This invention relates to a self-expanding pre-configured compressible transcatheter prosthetic cardiovascular valve that comprises an atrial halo fluid sealing device mounted on a self-expanding inner wire frame having a leaflet structure comprised of articulating leaflets that define a valve function, said inner wire frame is disposed within a self-expanding annular tissue-covered outer wire frame, said outer wire frame having an articulating collar, forming a multi-component prosthetic valve assembly for anchoring within the mitral valve or triscuspid valve of the heart, and methods for deploying such a valve for treatment of a patient in need thereof | 12-25-2014 |