Patents by Inventor Carl-Johan Häll

Carl-Johan Häll 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: 11851118
    Abstract: The disclosure relates to a method including the steps of: acquiring a time sequence of sets of vehicle parameter values; determining, for each set of acquired vehicle parameter values, based the set of acquired vehicle parameter values, a measure indicative of an observed strain in a steering rod, between a steering actuator and a wheel; determining, for each set of acquired vehicle parameter values, a measure indicative of a predicted strain in the rod, between the steering actuator and the wheel; and determining the functional status of the steering system based on a relation between the measures indicative of the observed strain in the rod and the measures indicative of the predicted strain in the rod.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: December 26, 2023
    Assignee: Volvo Car Corporation
    Inventors: Anders Hansson, Carl-Johan Häll
  • Patent number: 11834116
    Abstract: Machine-learning-based steering torque non-uniformity compensation for vehicles is enabled. For example, a system can comprise a memory that stores computer executable components, and a processor that executes the computer executable components stored in the memory, wherein the computer executable components comprise: a machine learning component that generates a steering non-uniformity model based on machine learning applied to past steering data representative of positions and steering ratios of a steering wheel of a vehicle, and a torque compensation component that, using current position data representative of a current position of the steering wheel and the steering non-uniformity model, determines a torque to apply to the steering wheel configured to offset a steering non-uniformity at the current position.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: December 5, 2023
    Assignee: VOLVO CAR CORPORATION
    Inventors: Kenneth Ekström, Carl-Johan Häll
  • Patent number: 11753070
    Abstract: A method and system for compensating for vehicle disturbances during vehicle operation, including: an algorithm for obtaining predicted driving condition data from a database, wherein the database includes one or more of geospatial data and remote vehicle data; an algorithm for obtaining real-time vehicle state data from equipment communicatively connected to a vehicle; an algorithm for combining the predicted driving condition data and the real-time vehicle state data to formulate a desired steering torque request necessary to compensate for predicted and actual driving conditions experienced by the vehicle; and an algorithm for providing the desired steering torque request to a power steering assist system of the vehicle to compensate for the predicted and actual driving conditions experienced by the vehicle.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: September 12, 2023
    Assignee: Volvo Car Corporation
    Inventors: Anders Hansson, Andreas Carlsson, Markus Löfgren, Carl-Johan Häll, Håkan Karlsson
  • Publication number: 20230174148
    Abstract: Machine-learning-based steering torque non-uniformity compensation for vehicles is enabled. For example, a system can comprise a memory that stores computer executable components, and a processor that executes the computer executable components stored in the memory, wherein the computer executable components comprise: a machine learning component that generates a steering non-uniformity model based on machine learning applied to past steering data representative of positions and steering ratios of a steering wheel of a vehicle, and a torque compensation component that, using current position data representative of a current position of the steering wheel and the steering non-uniformity model, determines a torque to apply to the steering wheel configured to offset a steering non-uniformity at the current position.
    Type: Application
    Filed: December 2, 2021
    Publication date: June 8, 2023
    Inventors: Kenneth Ekström, Carl-Johan Häll
  • Publication number: 20210291897
    Abstract: A method and system for compensating for vehicle disturbances during vehicle operation, including: an algorithm for obtaining predicted driving condition data from a database, wherein the database includes one or more of geospatial data and remote vehicle data; an algorithm for obtaining real-time vehicle state data from equipment communicatively connected to a vehicle; an algorithm for combining the predicted driving condition data and the real-time vehicle state data to formulate a desired steering torque request necessary to compensate for predicted and actual driving conditions experienced by the vehicle; and an algorithm for providing the desired steering torque request to a power steering assist system of the vehicle to compensate for the predicted and actual driving conditions experienced by the vehicle.
    Type: Application
    Filed: March 18, 2020
    Publication date: September 23, 2021
    Inventors: Anders HANSSON, Andreas CARLSSON, Markus LÖFGREN, Carl-Johan HÄLL, Håkan KARLSSON
  • Publication number: 20200189651
    Abstract: The disclosure relates to a method including the steps of: acquiring a time sequence of sets of vehicle parameter values; determining, for each set of acquired vehicle parameter values, based the set of acquired vehicle parameter values, a measure indicative of an observed strain in a steering rod, between a steering actuator and a wheel; determining, for each set of acquired vehicle parameter values, a measure indicative of a predicted strain in the rod, between the steering actuator and the wheel; and determining the functional status of the steering system based on a relation between the measures indicative of the observed strain in the rod and the measures indicative of the predicted strain in the rod.
    Type: Application
    Filed: December 17, 2019
    Publication date: June 18, 2020
    Inventors: Anders Hansson, Carl-Johan Häll