Back to results
US 2018/0062550 A1Published application
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
AssigneeValeo Klimasysteme GmbH
InventorsPhilippe Guyon, Daniel Garcia, Ralf Jahnig, Markus Luig
Life of this patent
Estimating the term…
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.
Claims15
A method for detecting stalling of an electric stepper motor, comprising:
- continuously or periodically obtaining a plurality of samples of a voltage at a coil of the stepper motor;
- determining a deviation value corresponding to a deviation between measured voltages of two of the plurality of obtained samples;
- and
- determining, using the deviation value whether the electric motor is stalling.
1 more element
Dependencies are inferred from the claim text.