Patents by Inventor Steffen SEITZ

Steffen SEITZ 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).

  • Method for determining an ageing parameter, a state of charge parameter and a temperature of a rechargeable battery, especially a lithium rechargeable battery
    Patent number: 11448708
    Abstract: A method for determining an ageing parameter KSOH of a rechargeable battery, especially a lithium rechargeable battery, featuring the steps (a) detecting an impedance Z of the rechargeable battery at different frequencies f, so that a Nyquist plot and a real part path, which plots a real part of the impedance Z against the frequency f, are obtained, determining at least one of the following SOH parameters, which can be selected from a predetermined list, establishing an SOH row vector {right arrow over (PSOH)} from the SOH parameters and all mixed terms of the form pSOH,m·pSOH,n, m=1, . . . , 11, n=1, . . . , m. The invention provides for the multiplication of the SOH row vector {right arrow over (PSOH)} by a saved calibration vector {right arrow over (ASOH)}, thereby obtaining the ageing parameter KSOH.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: September 20, 2022
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Gerd Wuebbeler, Rainer Fuessler, Clemens Elster, Steffen Seitz, Martin Wuensch
  • METHOD FOR DETERMINING AN AGEING PARAMETER, A STATE OF CHARGE PARAMETER AND A TEMPERATURE OF A RECHARGEABLE BATTERY, ESPECIALLY A LITHIUM RECHARGEABLE BATTERY
    Publication number: 20200326380
    Abstract: A method for determining an ageing parameter KSOH of a rechargeable battery, especially a lithium rechargeable battery, featuring the steps (a) detecting an impedance Z of the rechargeable battery at different frequencies f, so that a Nyquist plot and a real part path, which plots a real part of the impedance Z against the frequency f, are obtained, determining at least one of the following SOH parameters, which can be selected from a predetermined list, establishing an SOH row vector {right arrow over (PSOH)} from the SOH parameters and all mixed terms of the form pSOH,m·pSOH,n, m=1, . . . , 11, n=1, . . . , m. The invention provides for the multiplication of the SOH row vector {right arrow over (PSOH)} by a saved calibration vector {right arrow over (ASOH)}, thereby obtaining the ageing parameter KSOH.
    Type: Application
    Filed: April 10, 2020
    Publication date: October 15, 2020
    Applicants: Volkswagen AG, Bundesrepublik Deutschland, vertreten durch das Bundesministeriumfuer Wirtschaft und Energie, dieses
    Inventors: Gerd WUEBBELER, Rainer FUESSLER, Clemens ELSTER, Steffen SEITZ, Martin WUENSCH