Patent ID: 11959824
Assignee: CONTITECH ANTRIEBSSYSTEME GMBH
Field: Mechanical elements (Mechanical engineering)
Classification: CPC G  F | IPC F  G

Claim 15:
16. A belt drive comprising:
at least one drive pulley driven by an electric drive motor;
a driven pulley; and
at least one power-transmitting endless drive belt which is in the form of a traction belt and wraps around the drive and driven pulleys circumferentially over a partial circumference in each case;
wherein the belt has at least one first marking and at least one first sensor element which is assigned to the belt and is intended to detect the first marking is provided, wherein the first sensor element has electronic devices for outputting a signal SR dependent on the detection of the first marking, wherein the rotor of the electric drive motor has at least one rotary encoder or position encoder (as an incremental or absolute encoder) which can be used to detect the position or speed of the rotor during the motor rotation and to output a signal SM dependent on the position or speed;
a computing unit provided with memories and processors for processing the signals SR and SM is provided, wherein a temporal or local correlation of the occurrence of the signals SR and SM can be calculated in the computing unit when the drive belt is new and can be stored as a reference value and can be compared with corresponding correlations for repeated, further specified belt revolutions or periods of time; and
wherein a warning or alarm signal can be generated by the computing device after a specified tolerance value between the current correlation and the reference value has been exceeded.