EP1436888A1 - Procede de regulation d'un moteur electrique et moteur electrique correspondant - Google Patents
Procede de regulation d'un moteur electrique et moteur electrique correspondantInfo
- Publication number
- EP1436888A1 EP1436888A1 EP02783234A EP02783234A EP1436888A1 EP 1436888 A1 EP1436888 A1 EP 1436888A1 EP 02783234 A EP02783234 A EP 02783234A EP 02783234 A EP02783234 A EP 02783234A EP 1436888 A1 EP1436888 A1 EP 1436888A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electric motor
- setpoint
- difference
- gain
- motor
- 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- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual DC dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
Definitions
- the present invention relates to a method of regulating an electric motor usable for example in a motor vehicle fan unit for driving a cooling fan of the internal combustion engine of the vehicle.
- regulation is generally carried out according to a regulation loop as a function of a difference between a reference signal representative of an operating parameter of the electric motor and a measured value of this parameter.
- the reaction speed of the regulation loop depends on the gain, which is generally less than 1.
- the setpoint can vary frequently, in particular when the traffic is not very fluid and leads the driver to accelerate alternately. and has slowdowns. Existing systems are therefore unsatisfactory for regulating the speed of the fan.
- the gain is equal to a quarter and the predetermined threshold is equal to 2% of the setpoint signal.
- the setpoint is a pulsed voltage setpoint having a ratio cyclic representative of a percentage of a nominal speed of rotation of the electric motor, the set point being converted to correspond to an average voltage before calculating the difference between the set point and the measured value.
- the method comprises the steps of measuring a current at the terminals of the electric motor and of supplying the electric motor so as to maintain the measured current at a value less than or equal to a predetermined current threshold.
- the invention also relates to an electric motor associated with a regulation loop having a gain of less than 1 and with means for implementing a method having one of the preceding characteristics.
- the invention is here described in the context of an application to the cooling of a heat engine (not shown) of a motor vehicle.
- the regulation process is used for the corn- control of an electric motor 1 for rotating a fan (not shown) intended to generate a flow of air to cool the thermal engine.
- the electric motor 1 is controlled here by means of a microprocessor from a set point established as a function of a temperature of the heat engine.
- the temperature of the engine is either measured or determined in a predictive manner, for example by taking into account other operating parameters of the engine such as vehicle speed, engine speed, etc.
- the setpoint is preferably given in the form of a PWM type pulsed X signal (draws width modulation) and has a predetermined relationship between the duration of a pulse and the duration of a period to correspond to a percentage of the nominal rotation speed of the electric motor 1.
- the setpoint signal X is injected into a regulation loop comprising a module 3 (delimited by a closed line in dashed lines) for digital correction of the setpoint signal as a function of a difference between the setpoint signal and the voltage measured by a voltage sensor 4 at the terminals of the electric motor 1 to develop a command which is applied to the motor supply circuit, for example by means of a chopper 5 which determines the width of the voltage pulses supplying the motor.
- the setpoint signal X is first converted by the correction module by means of coefficients 7 to be put in the form aX + b and correspond to a setpoint of average supply voltage.
- coefficients 7 are determined here in such a way that, when the setpoint has a ratio of 16%, the voltage setpoint corresponds to the minimum voltage enabling the electric motor 1 to be driven, that is to say in general a voltage of 4 volts and that, when the setpoint signal has a ratio of 80%, the setpoint corresponds to the nominal voltage of the electric motor, that is to say 12 volts or 13.5 volts depending on the type of vehicle.
- the difference between the measured voltage 4 and the voltage setpoint resulting from the conversion of the setpoint signal is then divided by four 8 to obtain the difference used to correct the control signal.
- the gain of the regulation loop is therefore equal to 0.25.
- the division by four is carried out very simply by an offset.
- the difference is added to the setpoint to determine the control of the supply voltage.
- the deviation is compared with the setpoint 10. If the deviation is less than 2% of the setpoint, the command is identical to the setpoint 11. If the deviation is greater than 2% of the setpoint, the command is generated by decreasing the setpoint by the value of the difference 12.
- the motor current measured by a sensor 6 is compared to the applied command 12. In the case where the measured current is greater than the command, the latter is corrected 14 to reduce the current to a value less than a limitation threshold.
- the current measurement is the percentage of the command drawn from the motor current, multiplied by a measurement gain. This gain makes it possible to determine the limitation threshold.
- the setpoint signal may correspond to another operating parameter of the electric motor than the voltage, for example its speed of rotation, although current sensors are more expensive than voltage sensors as has been underlined above.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0113275 | 2001-10-15 | ||
| FR0113275A FR2830996B1 (fr) | 2001-10-15 | 2001-10-15 | Procede de regulation d'un moteur electrique et moteur electrique correspondant |
| PCT/FR2002/003434 WO2003034582A1 (fr) | 2001-10-15 | 2002-10-09 | Procede de regulation d'un moteur electrique et moteur electrique correspondant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1436888A1 true EP1436888A1 (fr) | 2004-07-14 |
Family
ID=8868309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02783234A Withdrawn EP1436888A1 (fr) | 2001-10-15 | 2002-10-09 | Procede de regulation d'un moteur electrique et moteur electrique correspondant |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7038420B2 (fr) |
| EP (1) | EP1436888A1 (fr) |
| JP (1) | JP3910587B2 (fr) |
| FR (1) | FR2830996B1 (fr) |
| WO (1) | WO2003034582A1 (fr) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4432058A1 (de) * | 1994-09-09 | 1996-03-14 | Bosch Gmbh Robert | Schaltung zum Betreiben eines Elektromotors |
| WO2001007768A1 (fr) * | 1999-07-28 | 2001-02-01 | Hitachi, Ltd. | Procede et appareil pour papillon commande par moteur, automobile, procede de mesure de la temperature d'un moteur pour la commande du papillon et procede de mesure de la temperature du moteur |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2634015A1 (de) * | 1976-07-29 | 1978-02-09 | Bosch Gmbh Robert | Einrichtung zum regeln der temperatur des innenraumes eines kraftfahrzeuges |
| JPS56138639A (en) * | 1980-03-31 | 1981-10-29 | Diesel Kiki Co Ltd | Control device for blower motor |
| DE3342031B4 (de) * | 1982-11-23 | 2005-01-13 | Papst Licensing Gmbh & Co. Kg | Schaltungsanordnung zur Drehzahlsteuerung eines Elektromotors |
| US4801503A (en) * | 1985-06-14 | 1989-01-31 | E. I. Du Pont De Nemours And Company | High tenacity polyhexamethylene adipamide yarn having ribbon cross-section filaments |
| US4829433A (en) * | 1985-10-07 | 1989-05-09 | Nissan Motor Co., Ltd. | Control system for continuously variable transmission |
| US4694228A (en) * | 1986-03-21 | 1987-09-15 | Rca Corporation | Compensation circuit for control system providing pulse width modulated drive signal |
| US5818178A (en) * | 1995-03-06 | 1998-10-06 | Hitachi, Ltd. | Valve control apparatus for an automobile |
| EP0747798A3 (fr) * | 1995-06-07 | 1998-02-11 | Acme Electric Corporation | Source de tension régulée dépendante de la témperature et du courant |
| US5719519A (en) * | 1995-11-20 | 1998-02-17 | Motorola, Inc. | Circuit and method for reconstructing a phase current |
| DE19647983A1 (de) * | 1995-12-04 | 1997-06-05 | Papst Motoren Gmbh & Co Kg | Verfahren zum Regeln einer physikalischen Größe und Anordnung zur Durchführung eines solchen Verfahrens |
| EP0900710B1 (fr) * | 1997-09-05 | 2002-06-19 | Mitsubishi Denki Kabushiki Kaisha | Système de commande de direction à assistance électrique |
| JP3337061B2 (ja) * | 1997-10-15 | 2002-10-21 | 株式会社安川電機 | 電動機制御装置 |
| JPH11348794A (ja) * | 1998-06-08 | 1999-12-21 | Koyo Seiko Co Ltd | パワーステアリング装置 |
| JP3500969B2 (ja) * | 1998-07-03 | 2004-02-23 | 株式会社日立製作所 | 電子スロットル制御装置 |
| US6064187A (en) * | 1999-02-12 | 2000-05-16 | Analog Devices, Inc. | Voltage regulator compensation circuit and method |
-
2001
- 2001-10-15 FR FR0113275A patent/FR2830996B1/fr not_active Expired - Fee Related
-
2002
- 2002-10-09 WO PCT/FR2002/003434 patent/WO2003034582A1/fr not_active Ceased
- 2002-10-09 JP JP2003537190A patent/JP3910587B2/ja not_active Expired - Fee Related
- 2002-10-09 US US10/492,296 patent/US7038420B2/en not_active Expired - Fee Related
- 2002-10-09 EP EP02783234A patent/EP1436888A1/fr not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4432058A1 (de) * | 1994-09-09 | 1996-03-14 | Bosch Gmbh Robert | Schaltung zum Betreiben eines Elektromotors |
| WO2001007768A1 (fr) * | 1999-07-28 | 2001-02-01 | Hitachi, Ltd. | Procede et appareil pour papillon commande par moteur, automobile, procede de mesure de la temperature d'un moteur pour la commande du papillon et procede de mesure de la temperature du moteur |
| EP1203874A1 (fr) * | 1999-07-28 | 2002-05-08 | Hitachi, Ltd. | Procede et appareil pour papillon commande par moteur, automobile, procede de mesure de la temperature d'un moteur pour la commande du papillon et procede de mesure de la temperature du moteur |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO03034582A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2830996A1 (fr) | 2003-04-18 |
| WO2003034582A1 (fr) | 2003-04-24 |
| US7038420B2 (en) | 2006-05-02 |
| JP3910587B2 (ja) | 2007-04-25 |
| JP2005506821A (ja) | 2005-03-03 |
| US20040239277A1 (en) | 2004-12-02 |
| FR2830996B1 (fr) | 2004-01-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| 17P | Request for examination filed |
Effective date: 20040416 |
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| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
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| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VALEO SYSTEMES DE CONTROLE MOTEUR |
|
| 17Q | First examination report despatched |
Effective date: 20110629 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20180501 |
|
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: H02P 7/28 20160101AFI20030506BHEP |