Conception of an electronic circuit enabling the indirect position measurement of an ultrasonic motor

• Research unit: INNOSUISSE
• Project number: 9812.2;6 PFIW-IW

Short description (English)

Conception of an electronic circuit enabling the indirect position measurement of an ultrasonic motor

Short description (French)

Conception of an electronic circuit enabling the indirect position measurement of an ultrasonic motor

Abstract (English)

Kaba AG is planning to replace the position detectors (bumper sensors), which are integrated in most of their locking cylinder products in order to further enhance the reliability of these systems. Based on an ultrasonic motor developed for an innovative mechatronic lock cylinder, the objective is to investigate a way, using state observer methods, to detect the rotor position and determine the state of the lock (open or locked). The successful conclusion of this research project will lead to the development of a sensorless position controller for standing wave ultrasonic motors.

Abstract (French)

Kaba AG is planning to replace the position detectors (bumper sensors), which are integrated in most of their locking cylinder products in order to further enhance the reliability of these systems. Based on an ultrasonic motor developed for an innovative mechatronic lock cylinder, the objective is to investigate a way, using state observer methods, to detect the rotor position and determine the state of the lock (open or locked). The successful conclusion of this research project will lead to the development of a sensorless position controller for standing wave ultrasonic motors.