EP2018573A1 - Système d'entraînement pour appareil électroménager - Google Patents

Système d'entraînement pour appareil électroménager

Info

Publication number
EP2018573A1
EP2018573A1 EP07724973A EP07724973A EP2018573A1 EP 2018573 A1 EP2018573 A1 EP 2018573A1 EP 07724973 A EP07724973 A EP 07724973A EP 07724973 A EP07724973 A EP 07724973A EP 2018573 A1 EP2018573 A1 EP 2018573A1
Authority
EP
European Patent Office
Prior art keywords
motor
electric motor
drive system
electric
terminals
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07724973A
Other languages
German (de)
English (en)
Inventor
Stefan Zeh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diehl AKO Stiftung and Co KG
Original Assignee
Diehl AKO Stiftung and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Diehl AKO Stiftung and Co KG filed Critical Diehl AKO Stiftung and Co KG
Publication of EP2018573A1 publication Critical patent/EP2018573A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/343—Testing dynamo-electric machines in operation

Definitions

  • the present invention relates to a drive system for a household electronic appliance, such as a washing machine, a dryer or a dishwasher.
  • the drive system is defined here in the case of washing machines and dryers as the composite of the components electric motor, motor control, belt, pulley,
  • the device end test involves short operation of the device with standard movements as in use.
  • certain parameters such as direction of rotation, speed and recorded power tested.
  • external measuring means are necessary, which must be synchronized with the engine control.
  • the electrical parameters of the drive system are usually not detected in such final tests. Although it is conceivable to connect an external test device, such contacting is very complicated, since the measuring points of the drive system within the terminal are poorly accessible.
  • the cheapest manufacturing method is to deliver pre-tested stator and rotor of the electric motor and then on the tub of the To install the washing machine or the dryer or washer dryer.
  • the camp of the washing drum is in this case also the bearing of the electric motor.
  • the rotational movement of the electric motor can only be checked after installation in the household appliance; this again requires a complex contacting of the electric motor within the terminal.
  • the present invention has for its object to provide a drive system for a home electronic appliance that can be tested in a simple and cost-effective manner as part of a final test of the household appliance. It is a further object of the present invention to provide a corresponding
  • the electronic household appliance drive system comprises an electric motor and a motor controller for controlling the operation of the electric motor, and is characterized in that the motor controller is provided with a test device (integrated with the motor controller) comprising a device for measuring motor currents of the electric motor, a device for applying voltages to motor terminals of the electric motor and an interface to an evaluation device contains.
  • a test device integrated with the motor controller
  • the corresponding method for the final testing of an electronic household appliance having a drive system with an electric motor and a motor controller for controlling the operation of the electric motor is characterized in that voltages are applied to motor terminals of the electric motor via the motor controller and corresponding motor currents of the electric motor are measured, and the measurement data is communicated to an evaluation device to check the drive system installed in the household appliance.
  • a testing device is integrated, which is used to test the
  • Drive system is suitable, the testing operations in the engine control can be relocated so that a test of the drive system in the context of a final test of the household appliance, ie with built-drive system in the terminal, easily and without complex contacting of difficult to access measuring points by external test equipment is possible.
  • the test effort can be reduced in terms of time and cost overall.
  • the drive system can be checked for additional error possibilities, which are not detectable in a preliminary examination of the individual components.
  • the conventional motor controllers do not contain dedicated test functionality, and only those movements are implemented which are required for the normal operation of the respective household appliance.
  • the test device also includes a device for measuring motor voltages of the electric motor in order to expand the test and evaluation options.
  • the measured data acquired by the test device can be communicated, for example, by the motor controller via the interface of the test device to an external test device which then evaluates the measured data and the corresponding one
  • a serial interface is suitable, which is usually implemented anyway in the motor control.
  • the motor control can also have its own evaluation device in order to be able to evaluate the measurement data itself.
  • the evaluation result can be communicated to the user by the motor controller, for example via an LED display, or communicated to the user through a characteristic movement profile of the drive system.
  • the engine control can control up to a high rotational speed of the electric motor in the case of a positive evaluation result, in which case an additional noise level assessment by external measuring devices takes place, or in the case of a negative evaluation result, it remains at a standstill.
  • the drive system or method described above is advantageously in electronic household appliances, such as washing machines, dryers, washing dryers and dishwashers for a simple test of the drive system in the terminal used.
  • the motor controller includes at least means for measuring motor currents and for applying voltages to the motor terminals of the electric motor; Preferably, means for measuring the motor voltages are also provided.
  • Stator resistance The stator resistance between at least two motor terminals of the electric motor is determined by applying DC voltage and calculating the quotient from voltage to current. An averaging or integral formation over a certain period of time of up to a few seconds is advantageous.
  • the stator inductance between at least two motor terminals of the electric motor is determined by placing short voltage pulses and measuring the current change when the voltage changes or determining the voltage-time area by time integration of the voltage and current signals.
  • Rotor position-dependent stator inductances such as occur in reluctance motors or permanent magnet synchronous motors, are determined by measuring the stator inductance in the various directions (d and q directions) by applying voltage pulses in the different directions. motor symmetry
  • motor balance can be determined by determining the stator resistance in different directions of the voltage and current space vector.
  • this can also be done by determining the stator inductance in different directions of the space vector for voltage and
  • the magnetic flux of the permanent magnet (in the case of a permanent magnet motor) is determined by checking the magnitude and symmetry of a flux during constant-speed operation of the electric motor.
  • Rotor time constant can be determined in an asynchronous motor.
  • the engine control should also have a way to determine the active power and the torque of the electric motor. As a result, imbalances and mechanical errors can be detected. With an acceleration test, the inertia of the system can be determined, which in turn provides information about the correct assembly. If there is a correct seal and a correct machine bearing, the friction must be within certain limits.
  • a not (properly) applied belt is noticeable by a false inertia of the drive system.
  • An excessive belt tension may be indicated by excessive friction.
  • a strong acceleration movement with a Torque which starts with higher dynamics than with standard movements, can be detected over the resulting speed curve too large or too small belt tension.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

L'invention concerne un système d'entraînement pour un appareil électroménager, comme par exemple une machine à laver, un sèche-linge ou un lave-vaisselle, comportant un moteur électrique et une commande de moteur servant à commander le fonctionnement du moteur électrique, dans lequel la commande de moteur comporte un dispositif de contrôle qui contient au moins un dispositif servant à mesurer le courant dans le moteur électrique, un dispositif servant à appliquer des tensions aux bornes du moteur électrique et une interface pour un dispositif de calcul. Un tel système d'entraînement permet de vérifier sans problème et de façon économique dans le cadre d'une inspection finale de l'appareil électroménager, si le système d'entraînement est totalement intégré dans l'appareil électroménager.
EP07724973A 2006-05-16 2007-05-08 Système d'entraînement pour appareil électroménager Withdrawn EP2018573A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102006023094 2006-05-16
DE102006058101A DE102006058101A1 (de) 2006-05-16 2006-12-09 Antriebssystem für ein elektronisches Haushaltsgerät
PCT/EP2007/004049 WO2007131667A1 (fr) 2006-05-16 2007-05-08 Système d'entraînement pour appareil électroménager

Publications (1)

Publication Number Publication Date
EP2018573A1 true EP2018573A1 (fr) 2009-01-28

Family

ID=38294235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07724973A Withdrawn EP2018573A1 (fr) 2006-05-16 2007-05-08 Système d'entraînement pour appareil électroménager

Country Status (4)

Country Link
US (1) US20090115425A1 (fr)
EP (1) EP2018573A1 (fr)
DE (1) DE102006058101A1 (fr)
WO (1) WO2007131667A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2278062B1 (fr) * 2009-07-14 2014-06-18 Electrolux Home Products Corporation N.V. Système de sécurité sans capteur pour déterminer la rotation d'un tambour de lavage d'un appareil domestique électrique alimenté par un moteur asynchrone triphasé
EP2453248B1 (fr) * 2010-11-15 2013-06-26 ABB Oy Procédé et agencement pour déterminer les inductances d'une machine synchrone à réluctance
DE102012021020A1 (de) * 2012-10-26 2014-04-30 Diehl Ako Stiftung & Co. Kg Verfahren und Vorrichtung zum Bestimmen einer Betriebstemperatur eines Elektromotors
CN103823086B (zh) * 2014-03-17 2016-08-17 青岛海信电器股份有限公司 安规测试工装

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4304189A (en) * 1979-10-25 1981-12-08 The United States Of America As Represented By The Secretary Of The Navy Telescopic launch and retrieval chute
DE19837796A1 (de) 1998-08-20 2000-02-24 Wilo Gmbh Verfahren zur Ermittlung des Pumpenzustandes
US6072674A (en) * 1998-10-01 2000-06-06 Siemens Energy & Automation, Inc. Motor controller having automatic swapped lead wiring detection capability
DE10119201A1 (de) * 2001-04-19 2002-10-24 Bsh Bosch Siemens Hausgeraete Verfahren und Vorrichtung zum Messen der Wicklungstemperatur eines Antriebsmotors
US6919815B2 (en) * 2002-01-24 2005-07-19 Emerson Electric Co. Appliance control communication methods and apparatus
US6566840B1 (en) * 2002-02-11 2003-05-20 Ford Global Technologies, Inc. Method and system for self-calibration of an induction machine drive
DE10254940A1 (de) * 2002-11-25 2004-06-17 Siemens Ag Verfahren zur automatischen selbstinbetriebnahme eines stromrichtergespeisten Asynchronmotors
EP1698032A1 (fr) * 2003-12-18 2006-09-06 BSH Bosch und Siemens Hausgeräte GmbH Procede de fonctionnement d'un circuit convertisseur d'un lave-linge ou d'un seche-linge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007131667A1 *

Also Published As

Publication number Publication date
DE102006058101A1 (de) 2007-11-22
US20090115425A1 (en) 2009-05-07
WO2007131667A1 (fr) 2007-11-22

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