Device and method for detecting the coil temperature of a direct-current motor, especially a brushless direct-current motor
 A device and method for detecting the coil temperature of a direct-current motor by determining the resistance of at least one coil of the motor. The method includes measuring a parameter of the at least one coil while the motor is running. The measurement is made at a time interval in which the coil is without current. The measuring device includes a commutation circuit of the motor which generates a time interval used for measuring the current. 
Heidelberger Druckmaschinen AG
G H H H
G01K H02P H02P H02H
inventional inventional inventional additional
Helmut Bertold Peter
Meyer Grutzmacher Eiswirth