Patents by Inventor Sten Ragnhult

Sten Ragnhult 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).

  • Patent number: 9751557
    Abstract: A method is provided for assisting a driver of a vehicle during operation by providing the driver with a desired steering feel. The method includes determining a desired steering device guiding force including a part representing a desired friction in a steering arrangement, and providing the driver with the desired steering feel based on the determined steering device guiding force.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: September 5, 2017
    Assignee: Volvo Lastvagnar AB
    Inventors: Jan-Inge Svensson, Jochen Pohl, Sten Ragnhult, Johan Hultén
  • Patent number: 9227633
    Abstract: A method for changing a vehicle's trajectory, wherein the vehicle includes a steering arrangement including a manual steering device, at least one pair of ground engaging members and a mechanical interconnection therebetween, includes the steps of applying a braking force to at least one of the ground engaging members so that the vehicle's trajectory is changed, and simultaneously suppressing steering device disturbances resulting from the mechanical interconnection.
    Type: Grant
    Filed: September 28, 2013
    Date of Patent: January 5, 2016
    Assignee: Volvo Lastvagnar AB
    Inventors: Jan-Inge Svensson, Jochen Pohl, Sten Ragnhult
  • Patent number: 9102355
    Abstract: A method is provided for assisting a driver of a vehicle during operation by providing the driver with a desired steering feel, wherein the vehicle includes a steering arrangement including a manually operated steering device, at least one pair of ground engaging members and a mechanical interconnection between the steering device and the ground engaging members. The method includes detecting a steering angle and determining a desired steering device guiding force based on the detected steering angle, providing the driver with the desired steering feel based on the desired steering device guiding force, and detecting the steering angle in a position at a ground engaging member side of an elastic steering force transmitting element in the steering arrangement.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: August 11, 2015
    Assignee: Volvo Lastvagnar AB
    Inventors: Jan-Inge Svensson, Sten Ragnhult
  • Patent number: 8738231
    Abstract: A method for assisting a driver of a vehicle during operation in order to avoid an undesired situation based on a current driving scenario includes predicting if a first guiding force to a vehicle steering device is desired in order to avoid the undesired situation and, if the first guiding force is desired, predicting a total guiding force comprising the first guiding force, which would be applied to the steering device for avoiding the undesired situation, comparing the predicted total guiding force with a limit value, and if the predicted total guiding force exceeds the limit value, in advance, deciding whether to apply the predicted total guiding force to the steering device for avoiding the undesired situation or not.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: May 27, 2014
    Assignee: Volvo Lastvagnar AB
    Inventors: Jan-Inge Svensson, Jochen Pohl, Sten Ragnhult, Johan Hultén
  • Publication number: 20140032052
    Abstract: A method for changing a vehicle's trajectory, wherein the vehicle includes a steering arrangement including a manual steering device, at least one pair of ground engaging members and a mechanical interconnection therebetween, includes the steps of applying a braking force to at least one of the ground engaging members so that the vehicle's trajectory is changed, and simultaneously suppressing steering device disturbances resulting from the mechanical interconnection.
    Type: Application
    Filed: September 28, 2013
    Publication date: January 30, 2014
    Applicant: VOLVO LASTVAGNAR AB
    Inventors: Jan-Inge SVENSSON, Jochen POHL, Sten RAGNHULT
  • Publication number: 20120265403
    Abstract: A method for assisting a driver of a vehicle during operation in order to avoid an undesired situation based on a current driving scenario includes predicting if a first guiding force to a vehicle steering device is desired in order to avoid the undesired situation and, if the first guiding force is desired, predicting a total guiding force comprising the first guiding force, which would be applied to the steering device for avoiding the undesired situation, comparing the predicted total guiding force with a limit value, and if the predicted total guiding force exceeds the limit value, in advance, deciding whether to apply the predicted total guiding force to the steering device for avoiding the undesired situation or not.
    Type: Application
    Filed: June 29, 2009
    Publication date: October 18, 2012
    Applicant: VOLVO LASTVAGNAR AB
    Inventors: Jan-Inge Svensson, Jochen Pohl, Sten Ragnhult, Johan Hultén
  • Publication number: 20120109465
    Abstract: A method for changing a vehicle's trajectory, wherein the vehicle includes a steering arrangement including a manual steering device, at least one pair of ground engaging members and a mechanical interconnection therebetween, includes the steps of applying a braking force to at least one of the ground engaging members so that the vehicle's trajectory is changed, and simultaneously suppressing steering device disturbances resulting from the mechanical interconnection.
    Type: Application
    Filed: June 29, 2009
    Publication date: May 3, 2012
    Applicant: VOLVO LASTVAGNAR AB
    Inventors: Jan-Inge Svensson, Jochen Pohl, Sten Ragnhult
  • Publication number: 20120109466
    Abstract: A method is provided for assisting a driver of a vehicle during operation by providing the driver with a desired steering feel. The method includes determining a desired steering device guiding force including a part representing a desired friction in a steering arrangement, and providing the driver with the desired steering feel based on the determined steering device guiding force.
    Type: Application
    Filed: June 29, 2009
    Publication date: May 3, 2012
    Applicant: VOLVO LASTVAGNAR AB
    Inventors: Jan-Inge Svensson, Jochen Pohl, Sten Ragnhult, Johan Hultén
  • Publication number: 20120101687
    Abstract: A method is provided for assisting a driver of a vehicle during operation by providing the driver with a desired steering feel, wherein the vehicle includes a steering arrangement including a manually operated steering device, at least one pair of ground engaging members and a mechanical interconnection between the steering device and the ground engaging members. The method includes detecting a steering angle and determining a desired steering device guiding force based on the detected steering angle, providing the driver with the desired steering feel based on the desired steering device guiding force, and detecting the steering angle in a position at a ground engaging member side of an elastic steering force transmitting element in the steering arrangement.
    Type: Application
    Filed: June 29, 2009
    Publication date: April 26, 2012
    Applicant: Volvo Lastvagnar AB
    Inventors: Jan-Inge Svensson, Sten Ragnhult