Patents by Inventor Tobias Weissmann

Tobias Weissmann 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: 12345600
    Abstract: A method for self-balancing of a lambda sensor (18, 20, 26) is provided. The method measures pumping current (Ip) and pumping voltage (Up) of the lambda sensor (18, 20, 26), and checks whether the measured pumping current (Ip) and the measured pumping voltage (Up) lie within a specified tolerance range (33). If values lie outside the tolerance range (33) of the characteristic curve specification, an adjustment of the lambda value (?) occurs with the aid of the pumping voltage (Up) of the lambda sensor (18, 20, 26), and, in a substantially adjusted state, a further pumping current (Ip) of the lambda sensor (18, 20, 26) is measured and the pumping current offset (32) is derived from the further pumping current (Up). Thus, precise self-balancing of the lambda sensor (18, 20, 26) is carried out, thereby enabling a good exhaust gas after-treatment.
    Type: Grant
    Filed: May 26, 2023
    Date of Patent: July 1, 2025
    Assignee: Dr. Ing. h.c. F. Porsche AG
    Inventors: Yannik Klink, Tobias Moellenhoff, Tobias Weissmann
  • Publication number: 20230400385
    Abstract: A method for self-balancing of a lambda sensor (18, 20, 26) is provided. The method measures pumping current (Ip) and pumping voltage (Up) of the lambda sensor (18, 20, 26), and checks whether the measured pumping current (Ip) and the measured pumping voltage (Up) lie within a specified tolerance range (33). If values lie outside the tolerance range (33) of the characteristic curve specification, an adjustment of the lambda value (?) occurs with the aid of the pumping voltage (Up) of the lambda sensor (18, 20, 26), and, in a substantially adjusted state, a further pumping current (Ip) of the lambda sensor (18, 20, 26) is measured and the pumping current offset (32) is derived from the further pumping current (Up). Thus, precise self-balancing of the lambda sensor (18, 20, 26) is carried out, thereby enabling a good exhaust gas after-treatment.
    Type: Application
    Filed: May 26, 2023
    Publication date: December 14, 2023
    Inventors: Yannik Klink, Tobias Moellenhoff, Tobias Weissmann