Abstract: An extension device for automotive vehicles, such as dumpers, having a framework with a front end section and a rear end section, and including a forward vehicle section supporting a prime mover and having a first articulation member, and a rear vehicle section having a second articulation member, the first and second articulation members being intended for connection with each other and for allowing pivoting of the vehicle sections in relation to each other about a longitudinal axis of the automotive vehicle, and further including a third articulation member connected to one of the end sections and a guide pin located on the rear end section having a bearing assembly for supporting a cardan shaft portion which extends through the extension device.

Abstract: Transmission method and arrangement for distributing tractive force in a vehicle between a first transmission branch (28a) and a second transmission branch (30). The transmission branches are connected to one another by way of a fork (28b) and one transmission branch (28a) is directly connectable to at least one wheel contact surface. The second transmission branch (30) is connected to the fork (28b) by way of a control unit (19), which is provided with control means (27) for varying the transmission ratio in this branch (30). The invention furthermore relates to a vehicle having at least two driving wheels (16, 16b, 17, 17b, 18, 18b) and the transmission arrangement specified above.

Abstract: A communication system between a base station and a plurality of pieces of construction equipment, the communication system including a transmitter and receiver for transmitting measured operational information from the plurality of pieces of construction equipment to the base station. Each equipment piece includes an operational component that is susceptible to damage. A computer based controller is utilized for measuring a plurality of operational parameters of a respective equipment piece and communicating derived measured operational information. A calculator is used for calculating an amount of damage incurred by the component based on the communicated measured operational information concerning the respective equipment piece.

Abstract: Transmission method and arrangement for distributing tractive force in a vehicle between a first transmission branch (28a) and a second transmission branch (30). The transmission branches are connected to one another by way of a fork (28b) and one transmission branch (28a) is directly connectable to at least one wheel contact surface. The second transmission branch (30) is connected to the fork (28b) by way of a control unit (19), which is provided with control means (27) for varying the transmission ratio in this branch (30). The invention furthermore relates to a vehicle having at least two driving wheels (16, 16b, 17, 17b, 18, 18b) and the transmission arrangement specified above.

Abstract: Transmission method and arrangement for distributing tractive force in a vehicle between a first transmission branch (28a) and a second transmission branch (30). The transmission branches are connected to one another by way of a fork (28b) and one transmission branch (28a) is directly connectable to at least one wheel contact surface. The second transmission branch (30) is connected to the fork (28b) by way of a control unit (19), which is provided with control means (27) for varying the transmission ratio in this branch (30). The invention furthermore relates to a vehicle having at least two driving wheels (16, 16b, 17, 17b, 18, 18b) and the transmission arrangement specified above.

Abstract: Method and device for the determining a maximum allowed velocity (Vmax) for a vehicle (1) when going downhill (2). The invention includes a detector (11) for detection of current inclination (alpha) of the vehicle (1) in relation to a horizontal plane (3), and means (10) for the determination of a value relating to the maximum allowed velocity (Vmax) of the vehicle in dependence of at least the value of the inclination (alpha). The invention also relates to a procedure for the control of the velocity. The invention provides a procedure for velocity control that takes the inclination into account when going downhill.

Abstract: Method and apparatus for estimating damage to an object, with at least a first parameter which corresponds to an operational state for the object and at least a second parameter which corresponds to a condition during the operational state being determined by at least one operation measurement, and with such measurement being carried out repeatedly. A total load that is defined by the total influence of the first and second parameters on the life of the object is then calculated. The invention also relates to a method and a system for controlling the use of the object.

Abstract: Arrangement for wheel suspension in a vehicle (1) including a vehicle frame (9) that bears at least two bogie axles (16, 17) which in turn each bear a wheel axle (5, 6), and also a first bogie element (18) and a second bogie element (19) which extend essentially in the longitudinal direction of the vehicle and are suspended in said vehicle frame (9). The invention includes at least one connection element (25; 41) extending essentially transversely to the longitudinal direction of the vehicle (1), which connection element (25; 41) is connected movably to at least one of the bogie axles (16; 17) and also to the bogie elements (18, 19), for transmission of a force which arises when relative movement takes place between the bogie axle (16; 17) concerned and said bogie elements (18, 19). By virtue of the invention, good comfort and a high degree of roll rigidity of the vehicle are obtained.

Abstract: Method and arrangements for predicting life-affecting damage on a rotary member subjected to repeated loading during operation. A number of operating parameters are measured, and a temperature increase during each loading is calculated from the operating parameters. More precisely, a total temperature in a part of the rotary member is calculated for each loading by summation of basic temperature of the rotary member before the loading concerned and the temperature increase, and the values for the total temperature are used as a measure of the damage. The part of the rotary member for which the total temperature is calculated defines a surface that is acted on when the rotary member is loaded. Two sets of predetermined functions (M, N), which each comprise at least one function, are used for temperature-increase calculation, and the set which is used for temperature-increase calculation is selected depending on at least the nature of the rotary member.

Abstract: A hydraulic arrangement for operating a load body (11) on a heavy vehicle. The load body is connected to the frame (12) of the vehicle by way of at least one articulated joint (13), enabling the load body to tip between a lowered transport position and a raised tipping position. An hydraulic cylinder assembly (14) forming part of the hydraulic arrangement includes at least two piston cylinders (15-17), each working in its own direction, and which are hydraulically and mechanically coupled to one another.

Abstract: Method and apparatus for estimating damage to an object, with at least a first parameter which corresponds to an operational state for the object and at least a second parameter which corresponds to a condition during the operational state being determined by at least one operation measurement, and with such measurement being carried out repeatedly. A total load that is defined by the total influence of the first and second parameters on the life of the object is then calculated. The invention also relates to a method and a system for controlling the use of the object.

Abstract: A propulsion engine housing for a motor vehicle having at least one door arranged to allow positioning in one closed and one open position. The inside of the door is provided with steps in order to facilitate access to the engine for the driver/mechanic.

Abstract: Method and arrangement including a vehicle having a first and a second vehicle section connected to an articulation that allows rotation about a vehicle longitudinal axis of the vehicle. A positioning arrangement is included that has at least one adjusting device in which the positioning arrangement includes operation by at least one adjusting device in order to rotate the first and second vehicle sections into a predefined basic position in relation to one another.

Abstract: Transmission method and arrangement for distributing tractive force in a vehicle between a first transmission branch (28a) and a second transmission branch (30). The transmission branches are connected to one another by way of a fork (28b) and one transmission branch (28a) is directly connectable to at least one wheel contact surface. The second transmission branch (30) is connected to the fork (28b) by way of a control unit (19), which is provided with control means (27) for varying the transmission ratio in this branch (30). The invention furthermore relates to a vehicle having at least two driving wheels (16, 16b, 17, 17b, 18, 18b) and the transmission arrangement specified above.

Abstract: Method and arrangement for providing a spring element configured to transmit compression forces and tensile forces between a vehicle frame and a wheel axle that are movably arranged with respect to one another. The spring element includes a rubber body and a mechanical connection member that extends through the rubber body. The mechanical connection member is arranged to limit the distancing movement between the vehicle frame and the wheel axle and has a coupling device for coupling the connection member to at least one of the vehicle frame and the wheel axle. The coupling device also has a first stub with a threaded portion protruding from the spring element and the first stub includes fixing means for obtaining a rotationally fixed, form-fit on said at least one of the vehicle frame and the wheel axle.

Abstract: Safety device and safety procedure in the case of a tipping dump body (2) of a truck (1), in which the dump body (2) through the operation of a control (11) in the driver's cab (4) of the vehicle (1) and by means of at least one hydraulic or pneumatic lifting cylinder (5) is designed to be moved between a lowered transport position (6) and a raised tipping position (7), and to assume a floating position, in which the lifting cylinder (5) is not pressurized and a holding position in which the lifting cylinder (5) is pressurized and the position of the dump body (2) is locked. The device includes a detector (13) that is designed for detection of the driver's presence in, or absence from the driver's cab (4), and that either a presence signal or an absence signal is delivered to the control (11) depending on whether or not the driver is in the driver's cab. The control (11) is designed, in the event of an absence signal from the detector (13), to assume the holding position.

Abstract: An articulated hauler, such as a dumper, is disclosed. The hauler includes a vehicle part housing or carrying the drive engine, and a load-bearing vehicle part. The vehicle parts are pivotably interconnected about a vertical pin. The load-bearing vehicle part is provided with at least one first wheel axle driven by the drive engine via a mechanical transmission is arranged at a first distance from the vertical pin. The vehicle part bearing the drive engine is provided with at least one second wheel axle driven by the drive engine. The second wheel axle is arranged at a second distance from the vertical pin. The second wheel axle on the vehicle part bearing the drive engine is also able to be driven via a hydrostatic transmission.

Abstract: Safety device and safety procedure in the case of a tipping dump body (2) of a truck (1), in which the dump body (2) through the operation of a control (11) in the driver's cab (4) of the vehicle (1) and by means of at least one hydraulic or pneumatic lifting cylinder (5) is designed to be moved between a lowered transport position (6) and a raised tipping position (7), and to assume a floating position, in which the lifting cylinder (5) is not pressurized and a holding position in which the lifting cylinder (5) is pressurized and the position of the dump body (2) is locked. The device includes a detector (13) that is designed for detection of the driver's presence in, or absence from the driver's cab (4), and that either a presence signal or an absence signal is delivered to the control (11) depending on whether or not the driver is in the driver's cab. The control (11) is designed, in the event of an absence signal from the detector (13), to assume the holding position.

Abstract: Method and device for controlling specific functions of a load-carrying vehicle when dumping and/or loading the load-carrying platform of the vehicle. The device includes a maneuvering organ (control input) that is arranged in the cabin of the load-carrying vehicle for hand maneuvering by the driver. The maneuvering organ (control input) is coupled to at least one of the brakes of the load-carrying vehicle and to the gearbox of the load-carrying vehicles so that it when activated may activate the brake and select a neutral position in the gearbox.

Abstract: Arrangement for wheel suspension in a vehicle (1) including a vehicle frame (9) that bears at least two bogie axles (16, 17) which in turn each bear a wheel axle (5, 6), and also a first bogie element (18) and a second bogie element (19) which extend essentially in the longitudinal direction of the vehicle and are suspended in said vehicle frame (9). The invention includes at least one connection element (25; 41) extending essentially transversely to the longitudinal direction of the vehicle (1), which connection element (25; 41) is connected movably to at least one of the bogie axles (16; 17) and also to the bogie elements (18, 19), for transmission of a force which arises when relative movement takes place between the bogie axle (16; 17) concerned and said bogie elements (18, 19). By virtue of the invention, good comfort and a high degree of roll rigidity of the vehicle are obtained.