CN101443671A - Drive system for an electronic domestic appliance - Google Patents
Drive system for an electronic domestic appliance Download PDFInfo
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- CN101443671A CN101443671A CNA2007800176577A CN200780017657A CN101443671A CN 101443671 A CN101443671 A CN 101443671A CN A2007800176577 A CNA2007800176577 A CN A2007800176577A CN 200780017657 A CN200780017657 A CN 200780017657A CN 101443671 A CN101443671 A CN 101443671A
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- engine
- electric motor
- drive system
- engine controller
- controller
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- Control Of Washing Machine And Dryer (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention proposes a drive system for an electronic domestic appliance, for example a washing machine, a dryer or a dishwasher, said system having an electric motor and a motor controller for controlling operation of the electric motor, in which the motor controller is provided with a testing device which contains at least one apparatus for measuring motor currents of the electric motor, an apparatus for applying voltages to motor terminals of the electric motor and an interface to an evaluation apparatus. Such a drive system can be tested without any problems and with minimal costs during final testing of the domestic appliance if the drive system is fully installed in the domestic appliance.
Description
Technical field
The present invention relates to for example drive system of the home electronics of washing machine, dryer or dish-washing machine.
Background technology
The drive system here be defined as electric motor, engine controller, band, belt wheel under the situation of washing machine and dryer, the combination of these assemblies of cable bundle between wash drum (washing drum), bearing, seal (seal) and engine controller and the electric motor.In washing machine with direct driving and dryer, can exempt band and belt wheel.For dish-washing machine, drive system is defined as the combination of the pump case of electric motor, engine controller, cable bundle and ebullator.
At the assembly process of end device, test these assemblies of electric motor, engine controller and cable bundle itself traditionally, and they are installed in the described end device.The final test of device comprise as effectively between on-stream period with the of short duration rotating device of mode of standard movement.In this case, some parameter of inspection such as rotation direction, velocity of rotation and consumed power.For this reason, the externally measured parts that needs must be synchronous with engine.
In such final test operating period, do not write down the electricity variable of drive system usually.Though it is feasible connecting the external testing unit,, owing to the measurement point that is difficult near the drive system in the end device, such contact operation is very complicated.
Under situation about directly driving, best up to now manufacture is to pay the stator and the rotor of the state electric motor down of (deliver) pretest, the bucket that then they is installed in washing machine or dryer go up or the installation rotating drum type drying machine on.The bearing of washing drum in this case, also is the bearing of electric motor.By this manufacture, can only after electric motor being installed in the housed device, test the rotational motion of described electric motor; This also need with end device in electric motor carry out complicated operating of contacts.
Summary of the invention
The present invention is based on following purpose: a kind of drive system of home electronics is provided, and this drive system can be tested in mode simple, that calculate during the final test of family expenses equipment.Another object of the present invention provides a kind of corresponding method of final test of home electronics.
The drive system of the home electronics of the feature by having claim 1 perhaps has the method for final test of home electronics of the feature of claim 7, reaches these purposes.The theme that useful improvement of the present invention and expansion are each dependent claims.
Be used for the engine controller that the drive system according to the present invention of home electronics has electric motor and is used to control the running of electric motor, it is characterized in that, engine controller disposes proving installation (being integrated in the engine controller), this proving installation comprises: the equipment that is used to measure the engine electric current of electric motor, be used for applying the equipment of voltage to the engine terminal of electric motor, and to the interface of assessment apparatus.
The corresponding method of the final test of home electronics, this home electronics comprises having the drive system of engine controller that electric motor and being used to is controlled the running of electric motor, it is characterized in that, apply voltage by engine controller to the engine terminal of electric motor, and the corresponding engine electric current of measurement electric motor, and, send measurement data to assessment apparatus in order to test the drive system that is installed in the housed device.
Because being applicable to the proving installation of test drive system is integrated in the engine controller, therefore test processes can be moved on to engine controller, thereby make under situation about drive system being installed in the end device, can do not have problems and do not need the external testing unit must carry out complicated operations with situation that inaccessible measurement point contacts under, carry out the test of the drive system during the final test of housed device.Therefore the time and the cost that can reduce test on the whole and spent.In addition, can test drive system at unascertainable possible additional fault during the pretest of single component.
Opposite with the present invention recited above, traditional engine controller does not comprise the test function of any special use, and only realizes those required motion sequences of normal operation of each housed device.
Preferably, proving installation also comprises the equipment of measuring the engine voltage of electric motor for extend testing and assessment option and being used to.
For example, can the measurement data that proving installation write down be sent to the external testing unit from engine controller by the interface of proving installation, described then external testing unit evaluation measurement data also is shown to the user with corresponding results.For example, the serial line interface that is easy to usually to realize in engine controller is suitable for transmitting measurement data.
But, select as another kind, for can assessment of metrology data itself, engine controller also can have its oneself assessment apparatus.Can assessment result be passed to the user from engine controller for example by means of light-emitting diode display, perhaps the characteristic curve movement by drive system passes to the user with it.For example, when having positive assessment result, engine controller can be increased to the high rotating speed of electric motor, carry out additional noise level by external measurement device then under these circumstances and estimate, perhaps when having negative assessment result, remain on halted state.
Above-mentioned drive system or method can be used for valuably home electronics, be used for the simple test of the drive system of end device such as washing machine, dryer, rotating drum type drying machine and dish-washing machine.
Engine controller comprises the parts that at least one is used to measure the engine electric current and applies voltage to the engine terminal of electric motor; Preferably also dispose the parts that are used to measure engine voltage.
With after the engine controller startup, described engine controller is tested various driving parameters during the final test of family expenses equipment.After being enabled under master controller by housed device or the excitation at master controller, special motion sequence also turns round, by this special motion sequence, the situation of the standard movement in the operation of the traditional final test described in the background technology can be determined special parameter more accurately.
Embodiment
Below the parameter of the drive system discussed and their measuring method are described.Self-evident, following inventory only is exemplary, and it is exclusive especially not should be understood to.
Stator resistance (resistance)
By applying dc voltage and calculating voltage merchant, determine the stator resistance between at least two engine terminals of electric motor to electric current.In this case, advantageously form mean value or integrated value through maximum several seconds special time periods.
Stator inductance (inductance)
Electric current when changing by applying of short duration potential pulse and measuring voltage changes, perhaps by the voltage and current signal is carried out the integrated value that integration is determined voltage/time with respect to the time, determine the stator inductance between at least two engine terminals of electric motor.
Rely on the stator inductance of rotor-position
If, for example, there is the stator inductance that relies on rotor-position in reluctance motor or the permanent magnet synchronized engine, then measures stator inductance along all directions (d direction and q direction), determine to rely on the stator inductance of rotor-position by applying potential pulse along all directions.
The engine symmetry
In the polyphase electric power engine, can determine stator resistance by various directions along the space vector of voltage and current, determine the engine symmetry.If necessary, can also determine that stator inductance carries out by all directions along the space vector of voltage and current.
The contact of cable bundle
When having determined stator inductance and engine symmetry, just guaranteed the steadiness that electrically contacts of the cable bundle between engine controller and the electric motor automatically.
Magnetic flux
By the intensity and the symmetry of test magnetic flux during electric motor is with constant rotation speed operation, determine the magnetic flux (under the situation of permanent-magnet engine) of permanent magnet.As selection, can also accelerate the rotating speed of electric motor, and can measure the induced voltage (EMF) during the variation, size, symmetry and the DC component of assessment EMF.
Rotor time constant
Can determine rotor time constant in the asynchronous motor to the transition response of voltage jump according to the engine electric current.
The power and the torque that consume
Engine controller also should be able to be determined the running power and the torque of electric motor.As a result, can detect unbalance and mechanical fault.Can use the inertia that quickens to attempt determining system, thereby this provides the conclusion about the steadiness of assembly.If be provided with firm seal and firm machine bearing, then friction horsepower must drop in certain restriction.
Tape test
The band of being used by (correctly) is not because the unsuitable inertia of drive system and noticeable.Can discern excessive belt tension by excessive friction.When torque of using under the situation that the higher dynamics of situation that exists in than standard movement changes and strong acceleration movement, the speed curves that can pass through to be produced detects too high or too low belt tension.
Self-evident, can also use above-mentioned test to test the function of electric motor controller itself.As a result, can exempt the independent test during the final production of engine controller, this has further reduced system cost.
Claims (10)
1. the drive system of a home electronics, this drive system has electric motor and is used to control the engine controller of the running of electric motor, it is characterized in that, described engine controller disposes proving installation, and described proving installation comprises: be used to measure the engine electric current of electric motor equipment, be used for that engine terminal to electric motor applies the equipment of voltage and to the interface of assessment apparatus.
2. drive system according to claim 1 is characterized in that, described proving installation also comprises the equipment of the engine voltage that is used to measure electric motor.
3. drive system according to claim 1 and 2 is characterized in that, the interface of proving installation is designed to communicate with the external testing unit.
4. drive system according to claim 1 and 2 is characterized in that described assessment apparatus also is integrated in the described engine controller.
5. according to each described drive system of claim 1-4, it is characterized in that, described assessment apparatus be designed to determine and the assessment following parameters in one of at least:
Stator resistance between at least two engine terminals of electric motor,
Stator inductance between at least two engine terminals of electric motor,
Rely on the stator inductance of rotor-position,
Engine symmetry (in the polyphase electric power engine),
Electrically contacting of cable bundle between engine controller and the electric motor,
The magnetic flux of permanent magnet (under the situation of permanent-magnet engine),
Rotor time constant (in asynchronous motor),
The power that consumes,
The torque that consumes,
The mass inertia of system,
The parameter (in tape drive) of band.
6. home electronics, it has each described drive system of claim 1-5.
7. the method for the final test of a home electronics, described home electronics comprises having the drive system of engine controller that electric motor and being used to is controlled the running of electric motor, it is characterized in that, apply voltage by engine controller to the engine terminal of electric motor, and the corresponding engine electric current of measurement electric motor, and, measurement data is sent to assessment apparatus in order to test the described drive system that is installed in the described housed device.
8. method according to claim 7 is characterized in that, also measures the engine voltage of electric motor by engine controller.
9. according to claim 7 or 8 described methods, it is characterized in that, measurement data is sent to the external testing unit or is integrated in assessment apparatus in the described engine controller.
10. according to each described method of claim 7-9, it is characterized in that, assessment in the following parameters one of at least:
Stator resistance between at least two engine terminals of electric motor,
Stator inductance between at least two engine terminals of electric motor,
Rely on the stator inductance of rotor-position,
Engine symmetry (in the polyphase electric power engine),
Electrically contacting of cable bundle between engine controller and the electric motor,
The magnetic flux of permanent magnet (under the situation of permanent-magnet engine),
Rotor time constant (in asynchronous motor),
The power that consumes,
The torque that consumes,
The mass inertia of system,
The parameter (in tape drive) of band.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006023094 | 2006-05-16 | ||
| DE102006023094.9 | 2006-05-16 | ||
| DE102006058101.6 | 2006-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101443671A true CN101443671A (en) | 2009-05-27 |
Family
ID=40727171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800176577A Pending CN101443671A (en) | 2006-05-16 | 2007-05-08 | Drive system for an electronic domestic appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101443671A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565540A (en) * | 2010-11-15 | 2012-07-11 | Abb公司 | Method and arrangement for determining inductances of synchronous reluctance machine |
| CN103792018A (en) * | 2012-10-26 | 2014-05-14 | 迪尔阿扣基金两合公司 | Method and apparatus for determining operating temperature of an electric motor |
| CN105048408A (en) * | 2014-04-22 | 2015-11-11 | 迪尔阿扣基金两合公司 | Method and apparatus for operating electric motor |
| CN107314863A (en) * | 2017-08-15 | 2017-11-03 | 杭州沃镭智能科技股份有限公司 | EPB brake caliper motor performance detection means and detection method |
-
2007
- 2007-05-08 CN CNA2007800176577A patent/CN101443671A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565540A (en) * | 2010-11-15 | 2012-07-11 | Abb公司 | Method and arrangement for determining inductances of synchronous reluctance machine |
| CN102565540B (en) * | 2010-11-15 | 2015-09-02 | Abb技术有限公司 | For determining the method and apparatus of the inductance of synchronous reluctance machine |
| CN103792018A (en) * | 2012-10-26 | 2014-05-14 | 迪尔阿扣基金两合公司 | Method and apparatus for determining operating temperature of an electric motor |
| CN103792018B (en) * | 2012-10-26 | 2018-11-20 | 迪尔阿扣基金两合公司 | Method and apparatus for determining the operating temperature of motor |
| CN105048408A (en) * | 2014-04-22 | 2015-11-11 | 迪尔阿扣基金两合公司 | Method and apparatus for operating electric motor |
| CN105048408B (en) * | 2014-04-22 | 2019-03-26 | 迪尔阿扣基金两合公司 | Method and apparatus for operating motor |
| CN107314863A (en) * | 2017-08-15 | 2017-11-03 | 杭州沃镭智能科技股份有限公司 | EPB brake caliper motor performance detection means and detection method |
| CN107314863B (en) * | 2017-08-15 | 2024-05-14 | 杭州沃镭智能科技股份有限公司 | EPB brake caliper motor performance detection device and detection method |
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Open date: 20090527 |