Patents by Inventor Ralf Jahnig

Ralf Jahnig 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 detecting stalling of an electric stepper motor, an electric stepper motor and a heating, ventilation and/or air conditioning system with an electric stepper motor
    Patent number: 10461676
    Abstract: A Method for detecting stalling of an electric stepper motor (18), with the following steps is shown: a) samples of the voltage at a coil of the stepper motor (18) are taken continuously or in regular intervals, b) a deviation value is determined corresponding to the deviation between the measured voltages of the two samples, and c) the deviation value is used to determine whether the electric motor (18) is stalling. Further, a stepper motor and a heating, ventilation and/or air conditioning system is shown.
    Type: Grant
    Filed: August 24, 2017
    Date of Patent: October 29, 2019
    Assignee: VALEO KLIMASYSTEME GMBH
    Inventors: Philippe Guyon, Daniel Garcia, Ralf Jahnig, Markus Luig
  • METHOD FOR DETECTING STALLING OF AN ELECTRIC STEPPER MOTOR, AN ELECTRIC STEPPER MOTOR AND A HEATING, VENTILATION AND/OR AIR CONDITIONING SYSTEM WITH AN ELECTRIC STEPPER MOTOR
    Publication number: 20180062550
    Abstract: A Method for detecting stalling of an electric stepper motor (18), with the following steps is shown: a) samples of the voltage at a coil of the stepper motor (18) are taken continuously or in regular intervals, b) a deviation value is determined corresponding to the deviation between the measured voltages of the two samples, and c) the deviation value is used to determine whether the electric motor (18) is stalling. Further, a stepper motor and a heating, ventilation and/or air conditioning system is shown.
    Type: Application
    Filed: August 24, 2017
    Publication date: March 1, 2018
    Applicant: VALEO KLIMASYSTEME GMBH
    Inventors: Philippe Guyon, Daniel Garcia, Ralf Jahnig, Markus Luig