Patent application number | Description | Published |
20080223631 | Working Machine - A working machine adapted for at least two functions, which include moving an implement and/or steering the machine, the machine includes: at least two hydraulic circuits, one hydraulic circuit for each of said functions, wherein each hydraulic circuit includes at least one hydraulic pump for operating the associated implement or steering function, a separate first electric machine drivingly connected to each of said hydraulic pumps for an individual supply of energy to the pump and extraction of energy from the pump, a transmission line for moving the working machine via driving wheels, wherein the transmission line includes at least one second electric machine, which is operatively connected to said first electric machines for an exchange of power between the hydraulic circuits and the transmission line. | 09-18-2008 |
20080264051 | Working Machine and a Method for Operating a Working Machine - A working machine including an internal combustion engine for supplying torque to the driving wheels of the working machine, and a transmission line arranged between the internal combustion engine and the driving wheels for transmitting torque from the internal combustion engine to the driving wheels. The working machine further including at least one hydraulic pump in a hydraulic system for moving an implement arranged on the working machine and/or steering the working machine. The transmission line includes at least one electric machine for driving or braking the driving wheels, and/or for generating electric power for the at least one hydraulic pump. | 10-30-2008 |
20100036568 | METHOD FOR OPERATING A WORKING MACHINE AND A WORKING MACHINE WITH AN IMPROVED ABILITY TO MEET TRANSIENT LOADS - A working machine and a method for operating a working machine are provided. The working machine includes a power source and a plurality of driving wheels; a working hydraulic system including at least one hydraulic pump powered by the power source for moving an implement on the working machine and/or for steering the working machine; a transmission line arranged between the power source and the driving wheels for transmitting torque from the power source to the driving wheels. The method includes detecting at least one operational parameter indicative of a load exerted on the working hydraulic system, determining if torque needs to be added, in addition to a torque delivered by the power source, on the basis of a magnitude of the detected operational parameter in order to reduce the a load on the power source, and adding torque in case additional torque is determined to be needed. | 02-11-2010 |
20100042281 | METHOD AND A SYSTEM FOR PROVIDING FEEDBACK TO A VEHICLE OPERATOR - A method for providing feedback to a vehicle operator regarding an operational state of a vehicle power transmission system in operation includes the steps of detecting at least one operational parameter indicative of said operational state, and providing an audio feedback signal to the operator in response to a magnitude of the detected operational parameter. | 02-18-2010 |
20100089050 | METHOD FOR OPERATING A WORKING MACHINE AND A WORKING MACHINE - A method for operating a working machine provided with a power source providing power and a plurality of power consuming systems connected to the power source includes the steps of providing a model predicting a power demanded by at least one of the power consuming systems, detecting at least one operational parameter indicative of a power demand, using the detected operational parameter in the prediction model, and balancing a provided power to the demanded power according to the prediction model. | 04-15-2010 |
20100094492 | METHOD FOR OPERATING A WORKING MACHINE AND A WORKING MACHINE WITH AN IMPROVED TRANSMISSION LINE - A working machine and a method for operating the same are provided. The working machine is provided with: a power source and a plurality of driving wheels; a working hydraulic system including at least one hydraulic pump powered by the power source for moving an implement on the working machine and/or for steering the working machine; a transmission line arranged between the power source and the driving wheels for transmitting torque from the power source to the driving wheels; and a transmission unit arranged in the transmission line for reducing the mechanical interaction between the power source and the driving wheels. The method includes: detecting at least one operational parameter indicative of a working condition of the working machine; determining if the characteristic of the transmission unit should be altered on the basis of a magnitude of the detected operational parameter; altering the characteristic of the transmission unit if it is determined to be required. | 04-15-2010 |
20100332061 | METHOD AND A CONTROL SYSTEM FOR CONTROLLING A WORK MACHINE - A method is provided for controlling a work machine during operation in a repeated work cycle including controlling transfer of power to and from an energy storage arrangement in the work machine according to a predetermined control strategy, which is adapted for the characteristics of the work cycle. | 12-30-2010 |
20110060504 | METHOD AND A SYSTEM FOR OPERATING A WORKING MACHINE - A method and a system for operating a working machine provided with a hydraulic system and an operator control adapted to command actuation of the hydraulic system is provided. The system includes a first control unit and a second control unit for moving an implement on the working machine and/or for steering the working machine. The method includes receiving first information regarding a status of the operator control, and determining at least one hydraulic system control information based on the first information and sending the determined hydraulic system control information to a second control unit which is adapted to control the hydraulic system accordingly. | 03-10-2011 |
20110060508 | A METHOD FOR CONTROLLING A HYDRAULIC SYSTEM - The present invention relates to a hydraulic system control unit, a hydraulic system and a working machine for controlling a hydraulic system adapted to perform at least one hydraulic work function in a working machine. The hydraulic system performs the hydraulic control function in accordance with an operation signal determined by a hydraulic system control unit. In a first step ( | 03-10-2011 |
20110087407 | METHOD FOR CONTROLLING A POWER SOURCE - A method, an electronic control unit, a vehicle control system and a working machine for controlling an power source adapted to drive at least one ground engaging element of the working machine are provided. The method includes receiving an operator control input indicative of the control of the power source, receiving a state input indicative of an operating state of the machine, determining an operation signal in the response to the operator control input and the operating state input, and sending the determined operation signal for controlling the power source accordingly. An accelerator signal converter adapted to perform any of the method steps is provided, as is an Electronic Control Unit (ECU) including the accelerator signal converter, a vehicle control system including the ECU, and a working machine including the vehicle control system. | 04-14-2011 |
20110218075 | PEDAL MAP SHIFT - A method is provided for controlling a prime mover adapted to drive at least one ground engaging element of a working machine. The method includes receiving an operator control input indicative of the control of the prime mover and determining at least one operation signal in response to the operator control input, which operation signal is sent for controlling the prime mover. The method also includes receiving a operating state input indicative of an operating state of the machine and selecting a control mode from at least one speed control mode in which the determined operational signal comprises a desired speed of the prime mover and at least one torque control mode in which the determined operational signal comprises a desired torque of the prime mover in response to the operating state input. | 09-08-2011 |
20140081523 | VEHICLE WITH A CONTROLLABLE WHEEL ROUTE - A vehicle with a controllable wheel route includes a vehicle body, a first pair of wheels, which are individually suspended on both sides of the vehicle body to roll on the ground and can rotate around the vertical axis, a second pair of wheels, which are individually suspended on both sides of the vehicle body to roll on the ground, can rotate around the vertical axis, and are placed in the back of the first wheels, a regulator, which regulates each steering angle on the vertical axis of the first and second wheels, a mode selector, which is configured to select a first mode and a second mode, and a controller, which receives the first mode signal or the second mode signal from the mode selector and controls the regulator according to the received signal. The second wheel route is regulated to be identical to the first wheel route in the first mode, and the second wheel route is regulated to be different from the first wheel route in the second mode. | 03-20-2014 |
20140088834 | ARTICULATED VEHICLE WITH A CONTROLLABLE WHEEL ROUTE - An articulated vehicle with a controllable wheel route includes a first vehicle body, a first pair of wheels, which are individually suspended on both sides of the first vehicle body, and can travel on the ground, a second vehicle body hingedly connected to the first vehicle body, a second pair of wheels, which are individually suspended on both sides of the second vehicle body, and can travel on the ground, a regulator, which regulates a relative steering angle between the first vehicle body and the second vehicle body, a mode selector, which is configured to select a first mode and a second mode, and a controller, which receives the first mode signal or the second mode signal from the mode selector and controls the regulator according to the received signal. The route of a second pair of wheels is regulated to be identical to the route of a first pair of wheels in the first mode, and the route of a second pair of wheels is regulated to be different from the route of a first pair of wheels in the second mode. | 03-27-2014 |
20140145415 | METHOD FOR CONTROLLING A WORKING MACHINE, AND A WORKING MACHINE - A method is provided for controlling a working machine that includes a front section having a frame and a pair of wheels arranged on a geometrical front wheel axis, and a rear section having a frame and a pair of wheels arranged on a first geometrical rear wheel axis and a pair of wheels arranged on a second geometrical rear wheel axis arranged behind the first rear wheel axis. The front section and the rear section are pivotally connected to each other for pivoting about a substantially vertical pivot axis. In a first control mode the wheels of the second geometrical rear wheel axis are steered to substantially follow the same tracks as the wheels of the geometrical front wheel axis when driving the working machine during cornering, and in a second control mode steering the wheels of the second geometrical rear wheel axis follow tracks which are different from the tracks of the wheels of the geometrical front wheel axis. | 05-29-2014 |
20140207346 | METHOD FOR CONTROLLING A WORKING MACHINE - A method for controlling a working machine provided with a bucket as a work implement by which a lifting force can be exerted on an object such as a gravel pile, and at least one ground engaging element by which a traction force can be exerted on the same object is provided. A state input indicative of a current bucket state is received, the bucket height being a parameter of the current bucket state, determining a lifting force eliminating speed of the power source (“LFES”) at the current bucket state, the LFES being the speed at and above which no lifting force could be achieved considering a reaction force acting on the bucket caused by the traction force, and the speed of the power source is controlled not to reach the LFES in order that at least some lifting force could be achieved. | 07-24-2014 |