Patents by Inventor Sven-Ake Carlsson

Sven-Ake Carlsson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080264051
    Abstract: 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.
    Type: Application
    Filed: October 14, 2005
    Publication date: October 30, 2008
    Applicant: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventors: Hans Ericson, Joakim Unneback, Sven-Ake Carlsson, Reno Filla
  • Publication number: 20080223631
    Abstract: 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.
    Type: Application
    Filed: October 13, 2006
    Publication date: September 18, 2008
    Applicant: VOLVO CONSTRUCTION EQUIPMENT AB
    Inventors: Reno Filla, Joakim Unneback, Sven-Ake Carlsson, Hans Ericson
  • Patent number: 7213480
    Abstract: A motor vehicle transmission having two intermediate shafts, which can alternately be driven via disengageable primary gearwheels, and drive a main shaft, via gearwheels on the respective main shaft and intermediate shaft, which gearwheels engage with one another in pairs. Mounted on an input shaft are two lockable and disconnectable drive gearwheels, one of which directly drives the primary gearwheels in a first rotational direction, whilst the other of which, via an intermediate gearwheel, drives the primary gearwheels in an opposite direction. The realization produces a transmission having an equal number of forward and reverse gears, which can be shifted without interruption of torque.
    Type: Grant
    Filed: August 25, 2005
    Date of Patent: May 8, 2007
    Assignee: Volvo Construction Equipment Holding Sweden AB
    Inventor: Sven-Ake Carlsson
  • Publication number: 20050284243
    Abstract: A motor vehicle transmission having two intermediate shafts, which can alternately be driven via disengageable primary gearwheels, and drive a main shaft, via gearwheels on the respective main shaft and intermediate shaft, which gearwheels engage with one another in pairs. Mounted on an input shaft are two lockable and disconnectable drive gearwheels, one of which directly drives the primary gearwheels in a first rotational direction, whilst the other of which, via an intermediate gearwheel, drives the primary gearwheels in an opposite direction. The realization produces a transmission having an equal number of forward and reverse gears, which can be shifted without interruption of torque.
    Type: Application
    Filed: August 25, 2005
    Publication date: December 29, 2005
    Applicant: VOLVO CONSTRUCTION EQUIPMENT HOLDING SWEDEN, AB
    Inventor: Sven-Ake Carlsson
  • Patent number: 6899074
    Abstract: Method and arrangement for providing a temperature regulating system (1) in a vehicle. The system includes an hydraulic arrangement (6) that is adapted to provide components intended for rotation belonging to a gearbox (5) of the vehicle and at least one of the axles (2, 3) of the vehicle with hydraulic oil from the same container (7). The system also has an arrangement (22) for regulating the temperature of the oil in the hydraulic arrangement (6) via a heat exchanger unit (21). The temperature regulating arrangement (22) is also adapted to cool the engine (4) of the vehicle.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: May 31, 2005
    Assignee: Volvo Construction Equipment Components AB
    Inventor: Sven-Ake Carlsson
  • Publication number: 20040166989
    Abstract: Method and apparatus for reversing the driving direction of a vehicle in motion, in which a movement of a gear selector to a position that indicates the new intended driving direction is detected (12). After the gear selector has assumed the new driving direction position, the vehicle's driving brakes are applied (14) depending upon the depression of the vehicle's gas pedal. The driving brakes (10) are applied proportionally to a change in position of the gas pedal. A speed of the engine (1) of the vehicle is increased with increased depression of the gas pedal. A gearbox (2) of the vehicle is disconnected (13) from the vehicle's engine (1) when the gear selector is detected to have been moved to the reverse driving direction position. A change (15) in the gearbox is effected from the current gear position to a position that indicates the selected gear for driving in the reverse direction after disconnection (13) of the vehicle's gearbox (2) from the vehicle's engine (1).
    Type: Application
    Filed: November 18, 2003
    Publication date: August 26, 2004
    Applicant: VOLVO CONSTRUCTION EQUIPMENT COMPONENTS AB
    Inventor: Sven-Ake Carlsson
  • Publication number: 20040112696
    Abstract: Brake-operating assembly for a machine including first and second brake pedals that are interconnected with one another. A first valve element is connected to the first brake pedal and arranged to control flow of hydraulic fluid from a pressure source to brake cylinders of the machine. A second valve element is connected to the second brake pedal and arranged to control flow of hydraulic fluid from the pressure source to the brake cylinders of the machine. The interconnection between the first and the second brake pedals is established utilizing at least one connecting line arranged between the first and the second valve element for hydraulic fluid.
    Type: Application
    Filed: August 26, 2003
    Publication date: June 17, 2004
    Applicant: VOLVO WHEEL LOADERS AB
    Inventors: Sven-Ake CARLSSON, Bo VIGHOLM