Patents by Inventor Andreas Mulczet

Andreas Mulczet 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 operating an electrical auxiliary heater in a motor vehicle
    Patent number: 8314364
    Abstract: The invention relates to a method for operating an electric add-heater in a motor vehicle having at least one rechargeable electrochemical cell as a power source and an electric generator which is connected with the cell and is driven by a drive engine of the motor vehicle and by which an electric add-heater can be supplied with current when the drive engine is running. It is provided according to the invention that in case of need the add-heater can be supplied with current even when no current is supplied by the generator, by switching over the add-heater to at least one electrochemical cell as a power source, monitoring the charging condition of at least one electrochemical cell, and interrupting the power supply of the electric add-heater realized by the at least one monitored electrochemical cell again when the charging condition of the at least one monitored electrochemical cell has dropped below a lower limit value.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: November 20, 2012
    Assignee: BERU Aktiengesellschaft
    Inventors: Jürgen Brust, Rolf Merte, Klaus Lehmann, Andreas Mulczet