FAULT DIAGNOSIS APPARATUS FOR MOTOR MULTI-SENSOR AND METHOD THEREOF

• Main Authors: BAE, HAN KYUNG, BAEK, JIN WOOK, KIM, CHANGSUNG SEAN
• Format: Patent
• Language: English; Korean
• Published: 27.06.2013
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING; TARIFF METERING APPARATUS; TESTING

PURPOSE: A device and a method for diagnosing the malfunction of a multi-sensor of a motor are provided to obtain the accuracy and the reliability of diagnosing the malfunction as a malfunction diagnosis is determined by using a rotation speed obtained via a processor adjacent to a multi-structure and a rotation speed directly obtained by tachometers. CONSTITUTION: A device for diagnosing the malfunction of a multi-sensor of a motor(1) comprises a plurality of tachometers(51,52) and a plurality of processors(21,22). The tachometers measure a speed by being attached to the motor. The processors access to the tachometers directly and respectively and receive the measured rotation speed from the tachometers, thereby obtaining a plurality of direct acquisition rotation speed values. The processors share the obtained rotation speeds each other, thereby obtaining a plurality of indirect acquisition rotation speed values. The processors perform a malfunction diagnosis with respect to the tachometers by using the direct acquisition rotation speed values and the indirect acquisition rotation speed values. [Reference numerals] (1) Motor; (11,12) Bus interface; (21,22) Processor; (31,32) Filter; (41,42) Interface; (51,52) Tachometer