Patents by Inventor Erik CARLDÉN

Erik CARLDÉN 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: 11396735
    Abstract: A method is disclosed for controlling brake forces of a working machine, the working machine including a frame and two front wheels and two rear wheels mounted to the frame, the working machine further including a front wheel brake arranged to brake at least one of the front wheels, and a rear wheel brake arranged to brake at least one of the rear wheels, the front wheel brake being controllable independently of the rear wheel brake, and vice versa, the working machine further including an implement connected to the frame so as to be movable in relation to the frame. The method includes determining a position of the implement in relation to the frame, and distributing the brake forces between the front and rear wheel brakes at least partly based on the determined implement position.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: July 26, 2022
    Assignee: Volvo Construction Equipment AB
    Inventors: Bo Vigholm, Andreas Ekvall, Erik Carldén, Kausihan Selvam, Benny Truong
  • Patent number: 11318861
    Abstract: A coolant system for an electric vehicle having first and second heat generating components includes a fluid circuit that circulates a coolant therethrough and a coolant assembly. The coolant assembly decreases the temperature of a portion of the coolant to a first temperature and supplies the portion of coolant to the first heat generating component via a first supply branch of the fluid circuit, and decreases the temperature of a remaining portion of the coolant to a second temperature and supplies the remaining portion of coolant to the second heat generating component via a second supply branch of the fluid circuit. The system includes a first pump unit, arranged downstream of the coolant assembly in the first supply branch, that directs the portion of coolant to the first heat generating component, and a second pump unit that directs the remaining portion of coolant to the second heat generating component.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: May 3, 2022
    Assignee: Volvo Construction Equipment AB
    Inventors: Joakim Unnebäck, Erik Carldén
  • Publication number: 20210188126
    Abstract: A coolant system for an electric vehicle having first and second heat generating components includes a fluid circuit that circulates a coolant therethrough and a coolant assembly. The coolant assembly decreases the temperature of a portion of the coolant to a first temperature and supplies the portion of coolant to the first heat generating component via a first supply branch of the fluid circuit, and decreases the temperature of a remaining portion of the coolant to a second temperature and supplies the remaining portion of coolant to the second heat generating component via a second supply branch of the fluid circuit. The system includes a first pump unit, arranged downstream of the coolant assembly in the first supply branch, that directs the portion of coolant to the first heat generating component, and a second pump unit that directs the remaining portion of coolant to the second heat generating component.
    Type: Application
    Filed: December 6, 2017
    Publication date: June 24, 2021
    Inventors: Joakim Unnebäck, Erik Carldén
  • Publication number: 20190211529
    Abstract: A method is disclosed for controlling brake forces of a working machine, the working machine including a frame and two front wheels and two rear wheels mounted to the frame, the working machine further including a front wheel brake arranged to brake at least one of the front wheels, and a rear wheel brake arranged to brake at least one of the rear wheels, the front wheel brake being controllable independently of the rear wheel brake, and vice versa, the working machine further including an implement connected to the frame so as to be movable in relation to the frame. The method includes determining a position of the implement in relation to the frame, and distributing the brake forces between the front and rear wheel brakes at least partly based on the determined implement position.
    Type: Application
    Filed: August 24, 2016
    Publication date: July 11, 2019
    Inventors: Bo VIGHOLM, Andreas EKVALL, Erik CARLDÉN, Kausihan SELVAM, Benny TRUONG