Patents by Inventor Johannes G. Kristinsson

Johannes G. Kristinsson 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).

  • Plug-in hybrid electric vehicle battery state of charge hold function and energy management
    Patent number: 9764632
    Abstract: A plugin hybrid electric vehicle includes an internal combustion engine, a battery, an electric machine, and a controller. The vehicle is operable in a primary electric vehicle driving mode (EV mode) and in a hybrid electric vehicle driving mode (HEV mode). The controller is programmed to receive input from the driver representing a desired operating mode and a desired energy reservation. If the desired operating mode is HEV mode, then a state of charge (SOC) offset is established as the smaller of a maximum SOC offset and an allowable SOC offset, otherwise, the SOC offset is established based on the desired energy reservation. The vehicle is operated based on the SOC offset.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: September 19, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Hai Yu, Ming Lang Kuang, Ryan McGee, Joseph G. Supina, Johannes G. Kristinsson, Fazal U. Syed
  • Adaptive initial estimation and dynamic determination and update of distance until charge of a plug-in hybrid electric vehicle
    Patent number: 9459110
    Abstract: An electric vehicle such as a PHEV or a BEV and a method of control includes receiving from a user of the vehicle, at an interface of the vehicle, a distance until charge (DUC) value indicative of the distance from a current position that the vehicle is intended to be driven before the vehicle is recharged. Battery usage of the vehicle is controlled as a function of the DUC value. An initial estimate of the DUC value may be made by obtaining historical distance between charges (DBC) values indicative of the distance the vehicle has been driven between each of one or more pairs of consecutive charges of the vehicle. The estimated DUC value is based on the DBC values.
    Type: Grant
    Filed: January 17, 2011
    Date of Patent: October 4, 2016
    Assignee: Ford Global Technologies, LLC
    Inventors: Johannes G. Kristinsson, Hai Yu, Ryan A. McGee
  • Adaptive Initial Estimation and Dynamic Determination and Update of Distance Until Charge of a Plug-In Hybrid Electric Vehicle
    Publication number: 20110184600
    Abstract: An electric vehicle such as a PHEV or a BEV and a method of control includes receiving from a user of the vehicle, at an interface of the vehicle, a distance until charge (DUC) value indicative of the distance from a current position that the vehicle is intended to be driven before the vehicle is recharged. Battery usage of the vehicle is controlled as a function of the DUC value. An initial estimate of the DUC value may be made by obtaining historical distance between charges (DBC) values indicative of the distance the vehicle has been driven between each of one or more pairs of consecutive charges of the vehicle. The estimated DUC value is based on the DBC values.
    Type: Application
    Filed: January 17, 2011
    Publication date: July 28, 2011
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Johannes G. Kristinsson, Hai Yu, Ryan A. McGee
  • PLUG-IN HYBRID ELECTRIC VEHICLE BATTERY STATE OF CHARGE HOLD FUNCTION AND ENERGY MANAGEMENT
    Publication number: 20110166733
    Abstract: A plugin hybrid electric vehicle includes an internal combustion engine, a battery, an electric machine, and a controller. The vehicle is operable in a primary electric vehicle driving mode (EV mode) and in a hybrid electric vehicle driving mode (HEV mode). The controller is programmed to receive input from the driver representing a desired operating mode and a desired energy reservation. If the desired operating mode is HEV mode, then a state of charge (SOC) offset is established as the smaller of a maximum SOC offset and an allowable SOC offset, otherwise, the SOC offset is established based on the desired energy reservation. The vehicle is operated based on the SOC offset.
    Type: Application
    Filed: January 7, 2011
    Publication date: July 7, 2011
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Hai Yu, Ming Lang Kuang, Ryan McGee, Joseph G. Supina, Johannes G. Kristinsson, Fazal U. Syed