EP2737197A1 - Circuit de demarreur de vehicule automobile comportant un dispositif de rehaussement de tension de batterie et demarreur equipe - Google Patents
Circuit de demarreur de vehicule automobile comportant un dispositif de rehaussement de tension de batterie et demarreur equipeInfo
- Publication number
- EP2737197A1 EP2737197A1 EP12738568.0A EP12738568A EP2737197A1 EP 2737197 A1 EP2737197 A1 EP 2737197A1 EP 12738568 A EP12738568 A EP 12738568A EP 2737197 A1 EP2737197 A1 EP 2737197A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- starter
- circuit
- dcm
- lpf
- battery voltage
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits specially adapted for starting of engines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F3/14—Constrictions; Gaps, e.g. air-gaps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/02—Adaptations of transformers or inductances for specific applications or functions for non-linear operation
- H01F38/023—Adaptations of transformers or inductances for specific applications or functions for non-linear operation of inductances
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1413—Controller structures or design
- F02D2041/1432—Controller structures or design the system including a filter, e.g. a low pass or high pass filter
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N2250/00—Problems related to engine starting or engine's starting apparatus
- F02N2250/02—Battery voltage drop at start, e.g. drops causing ECU reset
Definitions
- the invention relates to the field of thermal motor starters in motor vehicles. More particularly, the invention relates to the combination of a starter and a device allowing a raising of the voltage across the battery of the vehicle when powering the starter.
- Reinforced starters generally have higher power than conventional starters to get a quick start for more user comfort. This results in a higher inrush current and therefore a first drop in battery voltage that goes beyond the usual values and that against high requirements. This causes a real difficulty for the designer because it would be necessary to be above battery voltage that the starter has internal voltage drops so high that it would then no longer have the power to drive at sufficient speed the engine thermal at low temperature.
- a first known solution of the inventive entity is based on the use of electronic voltage-boosting converters in order to avoid a voltage level that is too low on the on-board electrical system.
- a major disadvantage of these converters lies in the substantial costs they introduce.
- Another known solution proposes to control the starter by means of two relays, a delay and a current limiting resistor.
- a delay whose duration is determined by the time delay
- an additional resistor is inserted in series in the starting circuit and limits the peak of initial current.
- the additional resistance is output from the starting circuit in order to allow the passage of a sufficient current in the armature of the starter and allow a rise in speed thereof.
- Such a template generally comprises a low voltage stage corresponding to the first voltage threshold indicated above and a high voltage stage corresponding to the second voltage threshold.
- a rising voltage ramp is also provided in the template between the low bearing and the high bearing.
- the inventive entity has already proposed improvements to existing starters of the prior art, in particular for applications in motor vehicles of the stop / restart function of the engine.
- the present invention therefore relates to a combination in a starter motor circuit of a motor vehicle of a starter and a battery voltage enhancement device, the starter comprising an electric motor and an electromagnetic contactor, the battery voltage enhancement device being intended to prevent a fall of the battery battery voltage following a current peak produced by the commissioning, in a power circuit, of the starter.
- the battery voltage enhancement device consists of an inductive type filtering device which is connected in series with the electric motor in the power circuit, the filtering device comprising a magnetic circuit which consists of a carcass made of magnetic material comprising a cylindrical yoke, two closure pieces and an axial core around which are arranged a primary winding circuit intended to be inserted in series in the power circuit and a secondary winding circuit in short -circuit, and comprising an axial core which has at least one gap.
- said at least one air gap is a median air gap.
- said at least one air gap comprises two end air gaps between the closure parts.
- the closure parts each have an annular air gap.
- the annular gap is axially aligned with the primary winding circuit or with the secondary winding circuit.
- the secondary winding circuit consists of an electrically conductive tube.
- the tube is made of copper or aluminum and has a predetermined length to radius ratio, as well as a predetermined thickness.
- the filtering device is inserted into the starter power circuit between a positive terminal of a vehicle battery and a power contact of the electromagnetic contactor.
- the filtering device is inserted into the starter power circuit between a power contact of the electromagnetic contactor and the electric motor.
- the invention also relates to a starter adapted to be integrated in a combination as briefly described above.
- the filtering device included in the combination is fixed on an outer casing of the starter.
- Figure 1 is a perspective view showing a combination of a starter and an inductive type filtering device of the kind previously developed by the applicant company.
- Figure 2 is a block diagram of a starter electrical circuit including a combination as shown in Figure 1.
- FIGS. 3a, 3b and 3c respectively show the variation of the magnetic flux and of the magnetic energy in the filtering device as a function of the current flowing in the power circuit of the starter, as well as the evolution of the current as a function of time, in the case of the filtering device according to the invention (squares) and in the case of prior filtering devices (diamonds).
- Figure 4 is a sectional view of an inductive type filtering device of the kind previously developed by the applicant company.
- Figure 5 is an axial sectional view of the filter device according to the invention in a first preferred embodiment.
- Figure 6 is an axial sectional view of the filter device according to the invention in a second preferred embodiment.
- Figures 7a and 7b are axial sectional views of exemplary filter device according to the invention in a third preferred embodiment.
- FIG. 1 shows a combination 1 of a starter, comprising a DCM DC electric motor and an electromagnetic contactor EC, and an inductive type LPF filtering device to which the applicant's optimization efforts have focused. .
- the LPF filtering device is mechanically fixed to an outer casing of the starter, close to the contactor EC.
- the LPF filtering device is electrically connected in series between the power contact CP of the contactor EC and the DCM motor.
- the LPF filtering device is not integrated in the EC starter, DCM, but is inserted in the power circuit between the positive terminal B + of the battery and the power contact CP .
- the EC contactor is here a conventional starter contactor, single power contact CP, and comprises a solenoid formed of a call coil and a holding coil.
- Closing a start contact CS of the vehicle controls the excitation of the call and hold coils, and the activation of the starter according to a sequencing well known to those skilled in the art and which will not be detailed here.
- the strong initial current peak mentioned above occurs when the power contact CP is closed, when the DCM motor is powered at full power.
- Closing the power contact CP also causes the LPF filtering device to flow a power supply to the DCM motor.
- the LPF filtering device is here an inductive type device which is realized here in the form of a battlelike transformer having magnetically coupled windings.
- a simple inductor could have been used to form the low-pass filtering device on which the optimization work was carried out.
- the embodiment with a transformer provides more parameters to adjust the frequency response of the LPF device depending on the application.
- it is possible to optimize this response by adjusting the inductances of the primary and secondary circuits W1, W2 and the mutual inductance introduced by the coupling between these circuits.
- the primary winding circuit W1 is the one that is inserted in the power circuit of the starter.
- the secondary winding circuit W2 is short-circuited.
- the equivalent inductance of the inductive filtering device LPF is between 0.1 and 10 mH approximately for currents having an order of magnitude of 300 to 1000 A.
- the effect of raising the battery voltage obtained stems from the fact that When the DCM motor is energized, the initial peak of current is cut off (attenuated by about half) due to the production of strong currents induced in the short circuit W2 short circuit, which oppose the abrupt variation of magnetic flux that generates them.
- FIG. 3a shows the variation of the magnetic flux ⁇ in a magnetic circuit of a non-optimized LPF filtering device (diamond curve 2) and in the magnetic circuit of an optimized LPF filtering device (curve in squares 3) according to FIG. 'invention.
- the magnetic flux ⁇ increases very rapidly with the intensity to stabilize at a maximum value.
- Figure 3b shows that this saturation value corresponds to the storage of a small amount of magnetic energy Em (diamond curve 4).
- the LPF filtering device optimized according to the invention comprises a magnetic circuit with at least one gap AG.
- Figure 3a shows that the magnetic flux ⁇ then increases less strongly as a function of the power current I (curve in squares 3) than in the case where the magnetic circuit does not have an air gap AG (diamond curve 2). The saturation phenomenon is also less important.
- the stored magnetic energy Em reaches higher values (curve in squares 6 of FIG. 3b) at the values corresponding to the non-optimized LPF filtering device (diamond curve 4).
- the result of the implementation of an airgap AG is a slow evolution (as shown by the curve in squares 7 of Figure 3c) of the power current I after saturation, at the time of commissioning of the DCM engine, compared the non-optimized LPF filtering device.
- FIG. 4 shows an inductive type filtering device of the type previously developed by the applicant company, which essentially comprises a carcass C, Y0, CM, CM 'made of magnetic material such as steel, and winding circuits. primary W1 and secondary W2.
- the carcass comprises a cylindrical yoke Y0, two closure pieces CM, CM 'and an axial core C around which are arranged the winding circuits W1, W2.
- the primary winding circuit W1 is intended to be inserted in series in the power circuit and the secondary winding circuit W2 is short-circuited.
- This secondary winding circuit W2 comprises several turns or, alternatively, is in the form of a ring.
- the optimized LPF device comprises the same essential elements as the non-optimized LPF filtering device, that is to say a carcass C, Y0, CM, CM 'in magnetic material and primary winding circuits W1 and secondary W2. It differs in the presence of a median air gap AG, of the order of 0.5 mm to 5 mm, in an axial direction, located substantially in the middle of the central core C.
- the optimized LPF device comprises an axial core C having two end air gaps AG1, AG1 'between the closure pieces CM, CM'.
- These air gaps AG1, AG1 ' are preferably of the order of 0.5 mm to 5 mm.
- the optimized LPF device comprises closure pieces CM, CM 'each having an annular air gap AG2, AG2'; AG3, AG3 '.
- annular air gaps AG2, AG2 '; AG3, AG3 are axially aligned either with the primary winding circuit W1 (FIG. 7a) or with the secondary winding circuit W2 (FIG. 7b), that is to say that the generatrices defining them are substantially merged with those enveloping the primary and secondary winding circuits W1, W2.
- An airgap AG in the magnetic circuit C, YO, CM, CM ' makes it possible to reach the saturation of this magnetic circuit C, YO, CM, CM' later, and thus to power the DCM electric motor of the DCM starter longer. , EC by an attenuated current level (by means of the LPF filtering device).
- the DCM electric motor has reached a higher rotational speed, and thus generates a higher counter-electromotive force, at the moment of saturation, which contributes to limiting the power current I.
- the secondary winding circuit W2 may advantageously consist of a conductive tube (for example example copper or aluminum) concentric with the primary winding circuit W1, and located outside or outside the latter.
- a conductive tube for example example copper or aluminum
- Such a structure can lead to an LPF filtering device of simpler embodiment compared to the secondary winding circuit W2 in several turns. It will be noted that the maintenance of an identical length-to-radius ratio, with respect to a secondary winding circuit W2 in several turns, will require a correct dimensioning of the thickness of the tube.
- the electrical operation of the filter device LPF will not be modified because of the ratio N2 / N1 which characterizes the transformer, provided to pass from a resistance R for N2 turns to a resistor R N2 2 for a turn with the tube, N2 and N1 being respectively the numbers of turns of the winding circuits W2 and W1.
- the air gaps AG are implicitly free spaces between two parts of the magnetic circuit C, Y0, CM, CM '.
- the function of the air gaps AG can be obtained by means of a saturable section in the magnetic circuit C, Y0, CM, CM ', which saturates either abruptly or gradually.
- a closure piece CM, CM 'of insufficient section to pass the total flow will saturate starting at the center, which is equivalent to a gap that is formed gradually.
- the saturation can be determined by choosing the thickness of the closing piece CM, CM 'as a function of the radius.
- a throttling in the core C, or in the return of external flux can be used to create by saturation a progressive air gap effect.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Composite Materials (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor And Converter Starters (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1156923A FR2978499B1 (fr) | 2011-07-28 | 2011-07-28 | Circuit de demarreur de vehicule automobile comportant un dispositif de rehaussement de tension de batterie et demarreur equipe |
| PCT/FR2012/051568 WO2013014352A1 (fr) | 2011-07-28 | 2012-07-05 | Circuit de demarreur de vehicule automobile comportant un dispositif de rehaussement de tension de batterie et demarreur equipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2737197A1 true EP2737197A1 (fr) | 2014-06-04 |
| EP2737197B1 EP2737197B1 (fr) | 2018-03-07 |
Family
ID=46579229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP12738568.0A Not-in-force EP2737197B1 (fr) | 2011-07-28 | 2012-07-05 | Circuit de demarreur de vehicule automobile comportant un dispositif de rehaussement de tension de batterie et demarreur equipe |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2737197B1 (fr) |
| JP (1) | JP6038913B2 (fr) |
| CN (1) | CN103717878B (fr) |
| FR (1) | FR2978499B1 (fr) |
| IN (1) | IN2014DN00218A (fr) |
| WO (1) | WO2013014352A1 (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3007910B1 (fr) | 2013-07-01 | 2017-04-28 | Valeo Equip Electr Moteur | Dispositif de rehaussement de tension de demarreur et combinaison correspondante d'un demarreur et dudit dispositif de rehaussement de tension |
| FR3008560B1 (fr) | 2013-07-12 | 2019-12-20 | Valeo Equipements Electriques Moteur | Systeme de stabilisation d'une tension d'alimentation d'un reseau electrique de bord d'un vehicule automobile |
| FR3008561B1 (fr) | 2013-07-12 | 2018-10-12 | Valeo Equipements Electriques Moteur | Procede et systeme de stabilisation d'une tension d'alimentation d'un reseau electrique de bord d'un vehicule automobile |
| FR3019659B1 (fr) | 2014-04-03 | 2017-12-22 | Valeo Equip Electr Moteur | Systeme de stabilisation d'une tension d'alimentation d'un reseau electrique de bord d'un vehicule automobile |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4239430B2 (ja) * | 2000-08-30 | 2009-03-18 | 株式会社デンソー | スタータ通電回路 |
| JP4128471B2 (ja) * | 2003-02-28 | 2008-07-30 | 株式会社デンソー | エンジン始動装置 |
| BR0305905A (pt) * | 2003-12-11 | 2005-08-16 | Brasil Compressores Sa | Sistema de partida para motor a indução monofásico |
| WO2005076293A1 (fr) * | 2004-02-03 | 2005-08-18 | Magtech As | Dispositifs et procedes de regulation d'une alimentation electrique |
| EP2233733B1 (fr) | 2008-01-18 | 2015-02-11 | Denso Corporation | Démarreur avec capacité d'assemblage améliorée |
| JP5136214B2 (ja) | 2008-05-29 | 2013-02-06 | 株式会社デンソー | スタータ |
| US8258738B2 (en) * | 2008-12-02 | 2012-09-04 | Sensata Technologies Massachusetts, Inc. | Low current electric motor starter |
| FR2943737B1 (fr) * | 2009-03-24 | 2011-04-15 | Valeo Equip Electr Moteur | Dispositif de demarrage pour moteur a combustion interne, notamment de vehicule automobile |
-
2011
- 2011-07-28 FR FR1156923A patent/FR2978499B1/fr not_active Expired - Fee Related
-
2012
- 2012-07-05 EP EP12738568.0A patent/EP2737197B1/fr not_active Not-in-force
- 2012-07-05 JP JP2014522129A patent/JP6038913B2/ja not_active Expired - Fee Related
- 2012-07-05 CN CN201280037964.2A patent/CN103717878B/zh active Active
- 2012-07-05 WO PCT/FR2012/051568 patent/WO2013014352A1/fr not_active Ceased
- 2012-07-05 IN IN218DEN2014 patent/IN2014DN00218A/en unknown
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2013014352A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014527138A (ja) | 2014-10-09 |
| WO2013014352A1 (fr) | 2013-01-31 |
| FR2978499B1 (fr) | 2018-03-02 |
| CN103717878A (zh) | 2014-04-09 |
| CN103717878B (zh) | 2016-04-13 |
| JP6038913B2 (ja) | 2016-12-07 |
| FR2978499A1 (fr) | 2013-02-01 |
| EP2737197B1 (fr) | 2018-03-07 |
| IN2014DN00218A (fr) | 2015-06-05 |
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