Abstract: The present invention relates to a method for determining the mass and the centre of mass of a demountable platform by using a mathematical model, the parameters of which are estimated using an iterative procedure.

Abstract: A vehicle accessory arrangement (2) structured to be mounted on a vehicle (4), the accessory arrangement (2) comprises a working equipment (6), an accessory control unit (8) configured to determine accessory control signals (10) and to control said working equipment (6) by said signals, and an accessory communication bus (12) comprising a bus interface (14) configured to connect said accessory communication bus (12) to a vehicle communication bus (16) provided at said vehicle. The accessory arrangement (2) comprises a wireless signal receiver (18) configured to receive current position data, e.g. GPS data, and working assignment data including route data for a working assignment for said vehicle (4) provided with said working equipment (6). The accessory control unit (8) is configured to receive a vehicle data set among a plurality of different vehicle data sets, each of said plurality of vehicle data sets comprises control characteristics of a vehicle on which the accessory arrangement may be mounted.

Abstract: The present invention relates to a method for determining the weight of a demountable platform. In the method, a hooklift is used to lift the demountable platform from the ground onto a vehicle, values of a force acting on a main cylinder of the hooklift are determined at predetermined intervals of a physical quantity that varies as a function of the movement of the hooklift, and the weight of the demountable platform is calculated using the determined values of the force. The present invention also relates to a system for determining the weight of a demountable platform.

Abstract: A driver assistance system (2) for a vehicle (4) provided with a crane (6) for loading or unloading objects (8), the system comprises: a control unit (10) configured to generate a presentation signal (12) to be applied to a display unit (14), an object detecting device (16) configured to capture images of the vehicle and/or of the environment around the vehicle, and configured to generate an image data signal (18) comprising data representing captured images, and to apply said signal (18) to said control unit (10).

Abstract: A vehicle, equipment for loading a load carrying device onto the vehicle, and a sensor that determines a deviation angle between longitudinal axes of the vehicle and load carrying device. A control compares the deviation angle to a maximum deviation angle, and if less than maximum deviation angle a loading procedure is performed, which procedure includes engaging a loading tool with an attachment part at an end of the load carrying device; lifting the end by the loading tool while another end of the load carrying device is on the ground; adjusting the vehicle position to decrease the deviation angle while the working equipment lifts the end of the load carrying device; monitoring the deviation angle during adjustment, comparing the deviation angle to a threshold deviation angle, and moving the load carrying device onto the vehicle in response to the deviation angle being less than the threshold deviation angle.

Abstract: The present invention relates to a method for determining the length of a demountable platform. In the method, a hooklift is used to lift the demountable platform from the ground onto a vehicle, magnitudes of one or more physical quantities related to a position of the hooklift are determined at a moment when the demountable platform comes into contact with rear rollers of the hooklift, and the length of the demountable platform is calculated based on the determined magnitudes of the one or more physical quantities and the position and orientation information of the hooklift relative to the ground. The present invention also relates to a system for determining the length of a demountable platform.

Abstract: A stabilizer leg arrangement with a stabilizer leg (25), which is extensible by a hydraulic cylinder (27) into a supporting position in contact with the ground. A piston (32) divides the internal space of the hydraulic cylinder into first and second chambers (34, 35), wherein these chambers are configured to come into fluid communication with each other through a flow channel (41) in the hydraulic cylinder when the piston reaches an advanced end position and abuts against a stop surface. An electronic control device (72) is configured to establish information as to whether or not the stabilizer leg is in the supporting position while taking into account a measuring value (V1) related to the hydraulic pressure in the first chamber (34). The invention also relates to a corresponding method and a mobile working machine comprising such a stabilizer leg arrangement.

Abstract: A vehicle (2) comprising at least one working unit (4) and a vehicle control system (6) comprising control units for controlling the vehicle to work in accordance with one or many working procedures. The vehicle is provided with a plurality of sensor units (12) configured to generate a sensor signal (14). Each control unit (8) is configured to determine control signals (18) to control its working unit (4), and the control unit designated to the vehicle is configured to determine control signals to control the vehicle, and also to determine control signals (18) for controlling at least one of the other working units (4) or the vehicle, and specifically to determine control signals (18) capable of controlling steps of a working procedure.

Abstract: A mobile working machine comprising: a chassis (5); stabilizer legs (10) connected to the chassis; a hydraulic crane (20) carried by the chassis and comprising a crane boom (25) articulately connected to a rotatable column (22) and a lifting cylinder (26) for pivoting this crane boom; and an electronic control device configured to establish a maximum allowed working pressure for the lifting cylinder while taking into account the contribution to the stability of the mobile working machine against tipping from each stabilizer leg (10) that is in an active supporting position. The electronic control device prevents a manoeuvring of a stabilizer leg away from the active supporting position if the working pressure of the lifting cylinder is higher than a threshold value corresponding to the value of the maximum allowed working pressure for the lifting cylinder that would ensue in case the stabilizer leg is made to leave the active supporting position.

Abstract: The invention relates to a method for determining a present value of the capacity level of a hydraulic crane (1) provided with a lifting cylinder (8), the present value of the capacity level being determined by means of a processing unit (33). The initiation of each new lifting cycle of the crane is detected and a minimum value of each lifting cycle is registered, which represents the lowest hydraulic pressure on the piston side (8a) of the lifting cylinder during the lifting cycle or the lowest cylinder force of the lifting cylinder during the lifting cycle. For at least some of the lifting cycles, the processing unit (33) determines the present value of the capacity level of the crane taking into account a control value (Vc) corresponding to: the minimum value registered for the previous lifting cycle, or the lowest one of the minimum value registered for the previous lifting cycle and the minimum value registered for the present lifting cycle.

Abstract: The invention relates to a method for determining a present value of the capacity level of a hydraulic crane (1) provided with a lifting cylinder (8), the present value of the capacity level being determined by means of a processing unit (33). The initiation of each new lifting cycle of the crane is detected and a minimum value of each lifting cycle is registered, which represents the lowest hydraulic pressure on the piston side (8a) of the lifting cylinder during the lifting cycle or the lowest cylinder force of the lifting cylinder during the lifting cycle. For at least some of the lifting cycles, the processing unit (33) determines the present value of the capacity level of the crane taking into account a control value (VC) corresponding to: the minimum value registered for the previous lifting cycle, or the lowest one of the minimum value registered for the previous lifting cycle and the minimum value registered for the present lifting cycle.

Abstract: An extendible crane boom comprises a number of telescopic boom sections, which are each composed of a tube and a holder mounted at an outer end of the tube and serving as an attachment for a double-acting hydraulic cylinder which serves to displace the individual telescopic boom section out of or into an immediately preceding boom section so as to extend and shorten, respectively, the crane boom in its entirety. The cylinder part (7) of each hydraulic cylinder is connected to the holder via a coupling comprising a screw joint having several screws, and a pair of cooperating male and female members (11, 9), one of which has a part-spherical surface (18) which faces the other and which, when the screw joint is but loosely tightened, allows adjusting the cylinder part into a desired, correct working position in relation to the holder, in which position the screw joint (13) is finally tightened.

Abstract: A dual control for vehicular cranes comprises two separate control units with control levers cooperating in pairs, which levers are protected by casings (7, 7') consisting of pivotable shell parts (9, 9') which in a closed position enclose and protect the control levers and in an open position expose the levers. In the two casings (7, 7') are arranged analogous locking mechanisms (14, 14') which comprise locking means (15, 15') being movable between locking and releasing positions. The two locking mechanisms are coupled to a transmission (18) which in a neutral position permits that the one casing (7') is opened and that in connection therewith transfers the opening motion of the movable shell part (9) to the locking mechanism of the other casing (7) in order to secure its locking means (15) in the locking position and, thereby, make the opening of the other casing (7) impossible as soon as the first one (7') is opened.

Abstract: An extendible crane boom comprises, in addition to a tubular base boom section (1), a plurality of boom sections (2, 3, 4, 5) telescopically within the base boom section and each composed of a tube and a holder (8, 8', 8", 8"') mounted at an outer end thereof for connecting the tube to a double-acting hydraulic cylinder (9, 9', 9", 9"') with a view to displacing each boom section out of and into an immediately preceding boom section so as to lengthen and shorten, respectively, the crane boom in its entirety. The third and fourth hydraulic cylinders (9", 9"') are located in a first plane which is parallel to the longitudinal extent of the boom and located inwardly of a second plane, in which the first and second hydraulic cylinders (9, 9') are located. This minimizes the overall height of the outermost telescopic boom sections (4, 5), counted as the center distance between the telescopic tube concerned and the associated hydraulic cylinder.