WO2011161348A1 - Procede de detection d'usure balais pour alterno-demarreur dans un vehicule - Google Patents
Procede de detection d'usure balais pour alterno-demarreur dans un vehicule Download PDFInfo
- Publication number
- WO2011161348A1 WO2011161348A1 PCT/FR2011/051272 FR2011051272W WO2011161348A1 WO 2011161348 A1 WO2011161348 A1 WO 2011161348A1 FR 2011051272 W FR2011051272 W FR 2011051272W WO 2011161348 A1 WO2011161348 A1 WO 2011161348A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- alternator
- brushes
- vehicle
- duty cycle
- starter
- Prior art date
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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
-
- 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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
- H02P9/305—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices controlling voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/58—Means structurally associated with the current collector for indicating condition thereof, e.g. for indicating brush wear
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Definitions
- the present invention relates to a brush wear detection method in an alternator / starter system coupled to a thermal engine of a vehicle.
- a known system for implementing this automatic shutdown / restarting function of the heat engine is an alternator-starter system mounted in place of the conventional alternator and using a reversible synchronous rotary-wound electric machine.
- the machine is mechanically coupled by belt to the engine.
- the rotating electrical machine can operate in electric motor / starter mode during the starting phases of the engine or in alternator mode to supply the vehicle's electrical network.
- the machine In electric motor mode, the machine must deliver a substantial mechanical torque to rotate the engine and start it.
- the excitation current supplying the excitation coil of the rotor of the machine is substantially higher than in alternator mode and the result is faster wear of the brushes.
- the present invention relates to a brush wear detection method in an alternator-starter system coupled to a heat engine in a vehicle, the alternator-starter system being able to operate in a starter mode and an alternator mode and comprising a machine rotary electric motor, a power circuit, an excitation circuit and a control circuit, the rotating electrical machine having a stator and a rotor, and the excitation circuit supplying excitation current through the brushes of the machine a excitation coil housed in the rotor.
- the method comprises the steps of:
- the step of calculating a mean duty cycle comprises a low-pass filtering of an instantaneous duty cycle of the excitation current.
- the low-pass filtering is a recursive type digital filtering.
- the low-pass filtering has a time constant of the order of 30 seconds.
- the method also comprises a transmission of end of life information of brushes to an electronic control unit of the vehicle when an end of life of the brushes is detected.
- the method also comprises transmitting an abnormality information to the driver of the vehicle when an end of life of the brushes is detected.
- this anomaly information is transmitted through a CAN bus of the vehicle and displayed on a dashboard of the vehicle.
- the method also comprises a deactivation of the alternator-starter system when an end of life of the brushes is detected. According to a particular embodiment of the method of the invention, it is implemented in the control circuit of the alternator-starter system.
- Fig.lA is a schematic representation of an alternator-starter system coupled to a vehicle engine in which the method of the invention is implemented in a control circuit of the alternator-starter system;
- Fig. 1 B is a schematic representation of an alternator-starter system coupled to a vehicle engine in which the method of the invention is implemented in an electronic control unit of the vehicle;
- Fig.2 shows in the form of a block diagram the end of life detection process of the brushes performed in the method according to the invention.
- FIG. 3 shows examples of evolution curves in alternating mode of instantaneous and filtered cyclic ratios when the brushes of the alternator-starter are at the end of their life.
- This alternator-starter system 1 comprises a reversible electric machine 3 mechanically coupled to the engine 2 by means of a transmission 4 by belt and pulleys.
- the electric machine 3 comprises a rotor 5 integral with an output pulley 6 at the end of the shaft 7.
- the rotor 5 has an inductor 8 fed by means of a rotating collector 9 by an excitation circuit 10. Brooms 90 are supported on the conductive rings of the rotary collector 9 and allow the supply by the circuit 10 of an excitation current to the inductor 8.
- the excitation current supplying the inductor 8 is a current of PWM type (for "Pulse Width Modulation" in English), that is to say, a current pulse width modulation.
- the machine 3 also comprises phase windings 1 1, or induced, powered by a reversible AC / DC converter 12.
- a control circuit 13 drives the power circuits 14 of the machine 3, constituted by the reversible AC / DC converter 12 and the excitation circuit 10, according to the information provided by a sensor of the position 15 of the rotor 5, and provided control signals, through a link 16, by an electronic control unit (ECU) 17 of the vehicle such as a motor control unit.
- ECU electronice control unit
- the ECU 17 receives operating parameters of the engine 2, and other context information via dedicated wire links (not shown) or by a CAN-type embedded data communication bus 19.
- the reversible AC / DC converter 12 is typically formed of a transistor bridge of the MOSFET type which, when the alternator / starter system 1 operates in motor mode, generates current pulses supplying the phase windings 11 of the machine, pulses whose frequency and width are controlled by the control circuit 13.
- the reversible AC / DC converter 12 operates as a synchronous rectifier when the alternator / starter system 1 operates in alternator mode.
- control circuit 13 comprises a brush wear detection software module 130 intended to detect an end of life of the brushes 90.
- the module 130 is activated when the alternator / starter system 1 operates in alternator mode .
- the excitation circuit 10 regulates the voltage Vbat so as to stabilize it at a value equal to a set voltage.
- the Setpoint voltage is here supplied by the ECU 17 to the excitation circuit 10, via the communication link 16 and the control circuit 13.
- a duty cycle DC% applied to the excitation current PWM type is transmitted to the electronic control unit 17 for information of the actual state of charge of the machine in alternator mode.
- the duty cycle DC% is called "instantaneous duty cycle" in the rest of the descrption.
- the brush wear detection software module 130 detects the end of life of the brushes 90 from a treatment carried out in alternator mode on the instantaneous duty cycle DC%.
- an end of life signal of brushes FV is delivered by the module 130.
- the information of the signal FV is stored in a non-volatile memory of the circuit 13 for possible after-sales service operations.
- This signal FV is then supplied to the ECU 17 through the communication link 16.
- the ECU 17 When the ECU 17 is informed of the end of life of the brushes 90, it deactivates the alternator-starter system 1.
- the ECU 17 controls information intended for the user of the need to carry out an after-sales service operation, for example, by ordering through the CAN bus 19 the display of a piece of information. anomaly on the dashboard of the vehicle.
- FIG. 1B the elements having the same reference numerals as those indicated in FIG. 1A remain identical and will not be described again below.
- FIG. 1 B there is provided a brush wear detection software module as in the embodiment of FIG. 1A, but this software module, labeled 170 in FIG. is located in the ECU unit, marked 17 'in Fig.l B, and not in the control circuit, marked 13' in Fig.l B.
- the instantaneous duty cycle DC% is supplied to the software module 170 via the control circuit 13 'and the communication link 16.
- the processing carried out by the brush wear detection software module 170 is similar to that performed by the module 130.
- the signal FV is delivered by the module 170 directly to the ECU 17 'which then operates as indicated below. above for the first embodiment of the invention with reference to FIG.
- 170 comprises a filtering calculation step FILT and a comparing step COMP.
- the FILT filtering calculation step uses a first-order low-pass filtering and comprises a recursive digital filtering of the instantaneous DC duty cycle% in order to obtain an average duty cycle F_DC%.
- a threshold TH F v is also shown in FIG.
- the threshold TH F v is chosen equal to a duty ratio of 60%.
- other values may be chosen, according to the applications of the invention.
- the power required for operation in starter mode is substantially greater than the power required in alternator mode.
- the ohmic resistance of the rotor is made small so as to allow, in starter mode, the passage of a large excitation current suitable for obtaining the torque. mechanical necessary to start the engine.
- the curves of evolution of the cyclic ratios DC% and F_DC% shown in FIG. 3 are examples of curves obtained when the brushes of the machine are at the end of their life.
- a switch to alternator mode As shown in Fig. 3, if no deactivation measure of the machine is taken, an open circuit is established after about 470 s in the excitation circuit of the machine and a loss of alternator mode. In such a situation, without any measure of deactivation of the machine, the collector has time to degrade.
- By detecting the wear of the brushes authorized by the present invention it is possible to deactivate the machine before any degradation and to alert the driver to the occurrence of an anomaly in the alternator and / or the need to change the brooms.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Control Of Eletrric Generators (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020127033667A KR20130118226A (ko) | 2010-06-25 | 2011-06-06 | 차량 내의 얼터네이터-스타터를 위한 브러시 마모를 검출하는 방법 |
CN201180031465.8A CN102958741B (zh) | 2010-06-25 | 2011-06-06 | 用于车辆中的交流电机启动器的检测电刷磨损的方法 |
EP11728356.4A EP2585334B1 (fr) | 2010-06-25 | 2011-06-06 | Procede de detection d'usure balais pour alterno-demarreur dans un vehicule |
JP2013515943A JP5852107B2 (ja) | 2010-06-25 | 2011-06-06 | 車両におけるオルタネータスタータのブラシの摩耗を検出する方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1055076A FR2961973B1 (fr) | 2010-06-25 | 2010-06-25 | Procede de detection d'usure balais pour alterno-demarreur dans un vehicule |
FR1055076 | 2010-06-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011161348A1 true WO2011161348A1 (fr) | 2011-12-29 |
Family
ID=43778167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2011/051272 WO2011161348A1 (fr) | 2010-06-25 | 2011-06-06 | Procede de detection d'usure balais pour alterno-demarreur dans un vehicule |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2585334B1 (fr) |
JP (1) | JP5852107B2 (fr) |
KR (1) | KR20130118226A (fr) |
CN (1) | CN102958741B (fr) |
FR (1) | FR2961973B1 (fr) |
WO (1) | WO2011161348A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130338908A1 (en) * | 2011-02-16 | 2013-12-19 | Koin Nakamura | Idle stop control device |
US9465076B2 (en) | 2012-08-27 | 2016-10-11 | Canon Kabushiki Kaisha | Slip ring and slip ring electrical system |
EP3361623A1 (fr) * | 2017-02-14 | 2018-08-15 | Valeo Equipements Electriques Moteur | Alterno-démarreur, véhicule automobile et procédé de commande associés |
FR3082948A1 (fr) * | 2018-06-20 | 2019-12-27 | Valeo Equipements Electriques Moteur | Procede de detection d'usure et/ou de dysfonctionnement de balais d'une machine electrique tournante |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9252643B2 (en) * | 2013-03-14 | 2016-02-02 | Cutsforth, Inc. | System and method for monitoring the status of one or more components of an electrical machine |
CN103901041B (zh) * | 2014-03-28 | 2016-01-13 | 科思通自动化设备(苏州)有限公司 | 一种用于abs汽车马达电刷检测设备 |
US10408183B2 (en) * | 2017-03-07 | 2019-09-10 | Ford Global Technologies, Llc | Methods and systems for improving engine starter durability for a stop/start vehicle |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04347560A (ja) * | 1991-05-22 | 1992-12-02 | Mitsuba Electric Mfg Co Ltd | モータにおけるブラシ寿命検出構造 |
EP1551094A1 (fr) * | 2002-10-07 | 2005-07-06 | Mitsubishi Denki Kabushiki Kaisha | Machine electrique rotative pour vehicule |
EP1717944A1 (fr) * | 2004-02-18 | 2006-11-02 | Mitsubishi Denki Kabushiki Kaisha | Dispositif de controle pour generateur motorise |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60167627A (ja) * | 1984-02-10 | 1985-08-31 | 日産自動車株式会社 | オルタネ−タの異常警報装置 |
JP3509007B2 (ja) * | 2000-06-29 | 2004-03-22 | 株式会社デンソー | 車両用交流発電機 |
JP4493324B2 (ja) * | 2003-12-03 | 2010-06-30 | 三菱電機株式会社 | 車両用発電機のブラシ摩耗検出装置 |
JP2006211734A (ja) * | 2005-01-25 | 2006-08-10 | Denso Corp | トルク検出装置 |
JP4940763B2 (ja) * | 2006-05-30 | 2012-05-30 | 株式会社デンソー | 交流発電機の制御装置 |
-
2010
- 2010-06-25 FR FR1055076A patent/FR2961973B1/fr active Active
-
2011
- 2011-06-06 WO PCT/FR2011/051272 patent/WO2011161348A1/fr active Application Filing
- 2011-06-06 CN CN201180031465.8A patent/CN102958741B/zh active Active
- 2011-06-06 KR KR1020127033667A patent/KR20130118226A/ko not_active Application Discontinuation
- 2011-06-06 EP EP11728356.4A patent/EP2585334B1/fr active Active
- 2011-06-06 JP JP2013515943A patent/JP5852107B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04347560A (ja) * | 1991-05-22 | 1992-12-02 | Mitsuba Electric Mfg Co Ltd | モータにおけるブラシ寿命検出構造 |
EP1551094A1 (fr) * | 2002-10-07 | 2005-07-06 | Mitsubishi Denki Kabushiki Kaisha | Machine electrique rotative pour vehicule |
EP1717944A1 (fr) * | 2004-02-18 | 2006-11-02 | Mitsubishi Denki Kabushiki Kaisha | Dispositif de controle pour generateur motorise |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130338908A1 (en) * | 2011-02-16 | 2013-12-19 | Koin Nakamura | Idle stop control device |
US9502848B2 (en) * | 2011-02-16 | 2016-11-22 | Nissan Motor Co., Ltd. | Idle stop control device |
US9465076B2 (en) | 2012-08-27 | 2016-10-11 | Canon Kabushiki Kaisha | Slip ring and slip ring electrical system |
EP2704267B1 (fr) * | 2012-08-27 | 2019-05-15 | Canon Kabushiki Kaisha | Bague collectrice et système électrique associé |
EP3361623A1 (fr) * | 2017-02-14 | 2018-08-15 | Valeo Equipements Electriques Moteur | Alterno-démarreur, véhicule automobile et procédé de commande associés |
FR3062973A1 (fr) * | 2017-02-14 | 2018-08-17 | Valeo Equipements Electriques Moteur | Alterno-demarreur, vehicule automobile et procede de commande associes |
FR3082948A1 (fr) * | 2018-06-20 | 2019-12-27 | Valeo Equipements Electriques Moteur | Procede de detection d'usure et/ou de dysfonctionnement de balais d'une machine electrique tournante |
Also Published As
Publication number | Publication date |
---|---|
EP2585334A1 (fr) | 2013-05-01 |
EP2585334B1 (fr) | 2014-04-02 |
FR2961973A1 (fr) | 2011-12-30 |
JP2013529885A (ja) | 2013-07-22 |
CN102958741A (zh) | 2013-03-06 |
CN102958741B (zh) | 2015-08-05 |
JP5852107B2 (ja) | 2016-02-03 |
FR2961973B1 (fr) | 2012-07-13 |
KR20130118226A (ko) | 2013-10-29 |
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