EP2144776A2 - Sous- ensemble de puissance d'un systeme micro-hybride pour vehicule automobile - Google Patents
Sous- ensemble de puissance d'un systeme micro-hybride pour vehicule automobileInfo
- Publication number
- EP2144776A2 EP2144776A2 EP08805755A EP08805755A EP2144776A2 EP 2144776 A2 EP2144776 A2 EP 2144776A2 EP 08805755 A EP08805755 A EP 08805755A EP 08805755 A EP08805755 A EP 08805755A EP 2144776 A2 EP2144776 A2 EP 2144776A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- power
- conductor
- subassembly according
- power bus
- connection means
- 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- Withdrawn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
- 239000004020 conductor Substances 0.000 claims abstract description 72
- 238000004146 energy storage Methods 0.000 claims abstract description 22
- 239000003990 capacitor Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 241001272720 Medialuna californiensis Species 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 238000002788 crimping Methods 0.000 claims description 4
- 239000012212 insulator Substances 0.000 claims description 4
- 230000002441 reversible effect Effects 0.000 claims description 4
- 238000005553 drilling Methods 0.000 claims description 3
- 230000003071 parasitic effect Effects 0.000 abstract description 10
- 239000007858 starting material Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 238000003860 storage Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000007667 floating Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 101000892301 Phomopsis amygdali Geranylgeranyl diphosphate synthase Proteins 0.000 description 1
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- 238000004378 air conditioning Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
-
- 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
-
- 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
- B60L2210/00—Converter types
- B60L2210/30—AC to DC converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- 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
- Y02T10/72—Electric energy management in electromobility
Definitions
- the present invention finds applications in the automotive field. More particularly, it relates to a power subassembly of a micro-hybrid system for a motor vehicle comprising an AC-DC transistor bridge converter, an energy storage device and a power bus.
- micro-hybrid systems with regenerative braking in which an alternator is used to take a mechanical torque, thus producing a braking of the vehicle.
- the alternator converts this sampled torque into electrical energy to charge an energy storage device in the form of, for example, a pack of supercapacitors or a battery.
- This recovered energy is then returned to the various electrical and electronic equipment that includes the motor vehicle.
- This energy can, in addition, in micro-hybrid systems called "14 + X" floating DC voltage, be used for starting the engine or for torque assistance of the engine.
- micro-hybrid system is composed of elements that must be interconnected with each other, some of these elements being relatively bulky.
- the engine compartment of a vehicle As the automobile industry has a relatively small space, it is becoming more and more difficult for car manufacturers to integrate new systems. This results in a number of technical choices such as moving the energy storage device away from the other elements of the micro-hybrid system, for example by installing it in the trunk.
- the lengths of connection cables, forming the power bus can be large and introduce parasitic inductances likely to penalize the micro-hybrid system in dynamic switched operating mode.
- the power bus placed between the AC-DC converter of the micro-hybrid system and the energy storage device, poses a particular problem. Indeed, large impulse currents can be conveyed through this power bus between the AC-DC converter and the energy storage device. For example, large impulse currents occur during starter mode operation of the rotating electrical machine.
- the parasitic inductance of this power bus can, on the one hand, affect the energy efficiency at certain frequencies and, on the other hand, cause resonance overvoltages. In addition, the parasitic inductance can be detrimental to electromagnetic compatibility.
- Resonance overvoltages are liable to cause uncontrolled avalanche phenomena in MOSFET power transistors of the AC-DC converter, these avalanche phenomena being able to alter the operation of these transistors, or to damage them.
- the reliability of the micro-hybrid system can therefore be greatly reduced by these avalanche phenomena.
- the standard cable shown above can be used in micro-hybrid systems for currents up to 600A, especially in the starting mode of the engine, because of the presence in the AC-DC converter of a capacitor a few tens of ⁇ F, for example 60 ⁇ F, constituting a passive filter limiting overvoltages.
- the object of the invention is to provide a subset of power of a micro-hybrid system that does not have the drawbacks of the solutions of the state of the art set out above.
- the power subassembly according to the invention comprises an AC / DC converter, an energy storage device and a power bus comprising at least two cylindrical conductors.
- the conductors comprise respective coaxial cylindrical surfaces.
- the power bus integrated in a power subassembly according to the invention, allows a parasitic inductance much lower than the standard cables of the power subassemblies of the state. of the technique. Indeed, it is possible, for a length 3m, to reduce the parasitic inductance to a value between about 0.1 ⁇ H and about 1 ⁇ H.
- this power bus allows simple connectivity and favorable to good reliability.
- the power bus has at least two coaxial conductors.
- the power bus has at least one conductor having a section of between about 15mm 2 and about 50mm 2 .
- This feature of the invention makes it possible to standardize the power subsystem to a large number of micro-hybrid systems. Indeed, the variability of the section of at least one coaxial conductor makes it possible to adapt to the length of this conductor, the latter varying as a function of the location in the vehicle of the storage device, and an adaptation to the high currents conveyed. by the power bus.
- the power bus has a central conductor having a circular section.
- This embodiment corresponding to the conventional structure of a coaxial conductor makes it possible to obtain an optimum in reducing the parasitic inductance of the conductors.
- the power bus has at least one conductor formed of a plurality of coiled metal sheets. This feature facilitates the handling of the driver through greater flexibility.
- the power bus comprises at least one conductor formed of a metal braid. This feature allows, on the one hand, a lower cost, and on the other hand, facilitates the handling of the driver through greater flexibility.
- the power bus has at least one conductor mainly copper, ensuring very good conductivity.
- the power bus has at least one conductor predominantly aluminum.
- the aluminum material reduces the cost of the driver and also minimize its weight.
- the power bus has at least one conductor housed in a sheath.
- the sheath is formed of an insulator placed between two conductors, and the insulation has a thickness of between about 0.1 mm and about 5 mm.
- this characteristic of the invention makes it possible to obtain a compromise between a minimum inductance and an adequate insulation between two conductors.
- the power bus comprises a connection means, and the connection means comprises at least one lug assembled on one end of a conductor.
- connection means comprises an assembled lug type bent.
- connection means comprises an assembled terminal of collar type.
- connection means comprises an assembled terminal of the half-moon type.
- connection means comprises a terminal assembled by crimping and / or welding.
- the power bus comprises a connection means, and this connection means comprises at least one lug made of material and formed at one end of a conductor. This characteristic advantageously makes it possible to achieve a gain in terms of material and to eliminate a contact resistance.
- connection means comprises a lug made of material and formed by crushing and drilling or unclogging an end of a conductor.
- the power subassembly comprises at least one cover element provided for the protection of a connection means.
- the cover can advantageously ensure the maintenance of the ends of the conductors forming the connection means so as to make the power subsystem more reliable.
- the hood makes it possible to seal the connection means.
- the cover includes a polarizer advantageously to avoid connection errors between the connection means and thus further increase the reliability of the power subassembly.
- the AC-DC converter is reversible.
- the energy storage device includes a supercapacitor.
- the invention also relates to a micro-hybrid system comprising a power subset as briefly described above, and a motor vehicle equipped with such a micro-hybrid system.
- FIG. 1 is a simplified representation of a micro-hybrid system comprising a power subassembly according to the invention
- FIG. 2 represents in detail the power subsystem of FIG. 1;
- FIGS. 3A, 3B and 3C show sections according to the section of three different embodiments of a power bus included in a power subassembly according to the invention
- FIG. 4A represents a sectional view of an exemplary connection means located at the ends of the power bus included in a power subassembly according to the invention
- FIGS. 4B and 4C respectively represent simplified sectional views of the connection means of FIG. 4A;
- FIG. 4D represents a simplified sectional view of another example of connection means situated at one end of the power bus according to the invention.
- FIGS. 4E and 4F show sectional views of two other examples of connection means located at ends of the power bus according to the invention.
- FIG 5 is a top view in section of another example of connection means located at one end of the power bus according to the invention.
- FIG. 1 shows several modules of a microhybrid system with alternator-starter 1 for a motor vehicle. Among these modules are: - a reversible polyphase rotating electric machine 2,
- a dc / dc direct voltage converter 4 connected to the power subassembly 3, and a energy storage unit connected to the converter
- the micro-hybrid system comprises a rotating electrical machine 2 of the alternator-starter type.
- the power sub-assembly 3 comprises: a reversible AC / DC converter 8-reversible,
- the AC / DC converter 8 makes it possible, in particular, to convert a DC voltage originating from vehicle energy storage means into polyphase AC voltages used for driving the alternator-starter 2.
- the power bus 9 makes it possible to transfer energy between the AC / DC converter 8 and the storage device 10.
- the storage device 10 may comprise a plurality of super-capacitors forming a pack and arranged in the form of cells in series.
- the DC / DC voltage converter 4 allows bidirectional transfers of electrical energy between the power subsystem 3 and the energy storage unit 5.
- the energy storage unit 5 may comprise a conventional battery pack, for example of the lead-acid battery type.
- the concept of battery pack 5 is understood in the present invention as covering any device forming a rechargeable electric energy reservoir, at the terminals of which a non-zero voltage is available, at least in a non-zero load state of the device.
- These storage means may in particular allow powering electrical or electronic consumers of the vehicle. These consumers in a motor vehicle are typically headlights, radio, air conditioning, windshield wipers, etc.
- the alternator Starter 2 becomes available for operation in electric motor mode.
- the AC / DC converter 8 When the rotating electrical machine 2 operates in electric motor mode, the AC / DC converter 8 operates to convert a DC voltage from the vehicle energy storage means into polyphase AC voltages, more specifically three-phase voltages in the embodiment. of Fig. 1.
- the polyphase AC voltages feed stator windings to cause rotation of an output shaft (not shown) of the rotary electric machine 2.
- the end of this operating mode is decided by the micro-hybrid system 1 when the energy storage means 5 and 10 are empty or when the startup phase, or acceleration, is complete.
- the AC / DC converter 8 When the rotating electrical machine 2 operates in alternator mode, more specifically, in normal alternator mode or regenerative braking alternator mode, the AC / DC converter 8 operates to convert polyphase voltage supplied by the machine 2 into a DC voltage which is used to supply the vehicle's electrical distribution network and charge the energy storage means thereof.
- a floating high-voltage network can be powered directly from the voltage present at the terminals of the pack of super-capacitors 10.
- the energy supplied to this network 14 + X can then come from the pack of super-capacitors 10, the machine 2 operating as an alternator, through the AC / DC converter 8, or the battery supply 5 through the DC / DC converter 4 then operating as a voltage booster.
- branches 18 and 19 of the micro-hybrid system are provided respectively for a 14 + X network operating at floating DC voltage and the 12 V network usually present in current motor vehicles.
- the power subassembly 3 can be integrated in different places of the motor vehicle, even elsewhere than under the engine bonnet of the vehicle.
- the elements 8, 9 and 10 of the power subassembly 3 can each be integrated at different locations in a motor vehicle.
- the AC / DC converter 8 is placed under the hood of the vehicle, the storage device 10, meanwhile, is placed in the trunk of the vehicle, and thus, the power bus 9 extends substantially on the entire length of the vehicle so as to connect the two elements 8 and 10.
- FIG. 2 shows the power subassembly 3 according to the invention comprising the AC / DC converter 8 connected, on the one hand, to the alternator-starter 2, and, on the other hand, to the super-capacitor pack. 10.
- AC / DC converter 8 is a three-phase electrical device allowing, especially in electric motor mode of the alternator-starter, to convert a DC voltage into polyphase AC voltages.
- AC / DC converter 8 comprises several bridge arms 1 1, here the number of 3, equal to the number of electrical phases.
- Each bridge arm 1 1 comprises 2 electronically controlled switches 12, each formed of a power transistor 13 and a freewheeling diode 14.
- the transistor 13 may for example be a MOSFET type transistor.
- the MOSFET transistor 13 comprises two operating states, namely an on state that allows the passage of a current, and a blocked state that prohibits the passage of a current. The transition from one state to another is done by switching.
- Transistor 13 has a third state called "avalanche crossing".
- this third state may occur when an overvoltage occurs across a transistor 13 when switching from a state to a blocked state.
- the voltage across the transistor 13 exceeds for example a value of 45V, the avalanche phenomenon appears, thus causing a very rapid increase in the temperature of the transistor.
- This temperature called the junction temperature of the transistor 13, can reach a value close to 200 ° C., well above the maximum junction temperature of 175 ° C. In this case, the transistor 13 becomes inoperative as to its switch function and the operation of the bridge is disturbed or blocked.
- the AC / DC converter 8 also includes a filter element 15 of the output voltage of the converter 8 to meet the electromagnetic compatibility requirements.
- This filter element comprises a capacitor 15 of low value, for example 60 ⁇ F, of to form a passive filter.
- the power bus 9 comprises at least two conductors 22, 22 'comprising a parasitic line inductance 21 which must be as low as possible in order to optimize the energy transfers via the power bus 9.
- the alternator-starter 2 When the alternator-starter 2 operates as an electric motor, for example for starting the heat engine, the currents flowing through the power bus 9 and the AC / DC converter 8 are very high, and can reach 1 100A.
- Fig.3A shows a sectional view according to the section of a first embodiment of the power bus 9.
- This power bus 9 comprises conductors 22, 22 'housed in a sheath 24 formed of an insulator 25.
- the conductors 22 , 22 ' comprise respective coaxial cylindrical surfaces 23, 23'.
- the two coaxial conductors 22, 22 ' form a conventional coaxial cable having a central conductor 22' of circular section.
- a coaxial conductor 22 has a section that varies between about 15mm 2 and about 50mm 2 .
- the circular shape of the conductors 22, 22 ' improves the electromagnetic coupling and allows an inductance value of between about 0.1 ⁇ H and about 1 ⁇ H.
- the two coaxial conductors 22, 22 'of FIG. 3A are housed in the same sheath 24.
- This feature makes it possible to minimize the thickness of the insulator 25 which forms the sheath 24 so as to reduce a distance D between the two coaxial conductors 22, 22 '.
- the insulation is placed between the two conductors respectively corresponding to positive and negative cores to isolate them from each other. Minimizing the distance D between the two coaxial conductors 22, 22 'makes it possible to further reduce more the line inductance 21.
- the thickness of the insulation may for example be between about 0.1 mm and about 5 mm. These applications further reduce the inductance value to a value between about 0.1 ⁇ H and about 0.5 ⁇ H, and induce bandwidth cutoff frequencies of about 5 MHz and about 65 MHz.
- Fig.3B shows a section according to the section of a second embodiment of the power bus 9 according to the invention, always coaxial conductors 22, 22 '.
- the coaxial conductor 22 has a plurality of coiled metal sheets 26.
- the characteristic of FIG. 3B allows an increase in the flexibility of the conductor 22.
- the conductor 22 ' may also comprise a plurality of wound metal sheets.
- Fig. 3C shows a cross sectional view of a third embodiment of the power bus 9.
- the leads 22, 22 ' comprise metal braids formed of a plurality of small section wires 28. , 28 '.
- the metal braids comprise substantially cylindrical coaxial surfaces 23, 23 'having the same function as the coaxial cylindrical surface described above with reference to FIG. This embodiment has the advantage of using low cost conductors.
- the power bus 9 guarantees the reliability of the micro-hybrid system 1. In fact, the characteristics of the conductors 22,
- a power bus 9 allows efficient energy transfer between the storage means 5 and 10 and the alternator-starter 2, despite a significant length of the conductors 22, 22 'and high values of currents.
- the coaxial conductors 22, 22 'of the power bus 9, shown in FIGS. 4A, 4B and 4C will preferably be made of a material mainly comprising copper so as to benefit from a very low resistivity.
- the coaxial conductors 22, 22 ' may also be made of a material comprising predominantly aluminum.
- Aluminum provides a lower cost compared to copper, while maintaining a low resistivity.
- aluminum has the advantage of a lower weight compared to copper.
- connection means 40 located at ends 41, 41 'of the conductors 22, 22' of the power bus 9 according to the invention.
- the power bus 9 comprises the connection means 40 comprising lugs 50, 51 assembled on the ends 41, 41 'of the conductors 22, 22' respectively.
- the power bus here comprises two lugs 50, 51 of assembled type.
- connection means 40 illustrated in FIGS. 4A, 4B and 4C
- the assembled lugs 50, 51 are fixed on a complementary connection means 30, or terminal block, of the pack of super-capacitors 10 by means of a fixing element (Not shown), which is for example formed of two bolts and two nuts.
- the bolts of the fixing element are inserted into recesses 57, 58 of the lugs 50 and 51 respectively so as to pass through the connection means 40 and the terminal block 30.
- a mechanical and electrical connection between the elements 30 and 40 is obtained by tightening the nuts.
- the fastening element can be made by means of screws or pins.
- the terminal 50 is assembled by welding on one end of the conductor 22 '.
- the lug 50 is of the bent type in a direction substantially perpendicular to the longitudinal axis of the conductor 22 '.
- the assembled lug 50 of the bent type can be bent in a suitable direction and have shapes and dimensions different from those of FIG. 4B, depending in particular on the configuration of the terminal block 30.
- the lug of the type angled 50 can be formed with angles other than 90 °.
- the lug 51 is crimped together at one end of the lead 22.
- the lug 51 is of the collar type. This collar-like lug 51 surrounds the end 41 of the conductor 22 without the sheath 24.
- the lug-type lug 51 is crimped on the end 41 of the conductor by means of a holding element 55.
- connection of one end of the power bus with the super-capacitor pack has been detailed above, with reference to Figs.4A 4B, and 4C.
- a similar connection is provided between the other end of the power bus and the AC / DC converter.
- the connections at the ends of the power bus may be different and include for example connections of the types described below, with reference to Figs.4D, 4E and 4F.
- FIG. 4D illustrates another example of the connection means 40 situated at one end 41 'of the power bus 9.
- the connection means 40 comprises an assembled terminal 52 formed without curvature so as to have one and the same longitudinal axis that the end 41 'of the respective conductor 22'.
- FIGS. 4E and 4F illustrate other examples of the connection means 40 located at ends 41, 41 'of the power bus 9.
- connection means 40 lugs 53, 53 'in the form of half-moon are assembled by crimping and welding on the ends 41, 41' of the coaxial conductors 22, 22 '.
- the lugs 53 half-moon type are assembled to obtain a connecting means 40 located in a longitudinal axis substantially parallel to the longitudinal axis of the coaxial conductors 22, 22 '.
- the half-moon type lugs 53 ' are assembled so as to obtain a connection means 40 situated in an axis perpendicular to the longitudinal axis of the coaxial conductors 22, 22'.
- the two lugs 53 ' are oriented along the same axis perpendicular to the longitudinal axis of the coaxial conductors 22, 22'.
- each of the lugs described above with reference to FIGS. 4A to 4F can be assembled by crimping and / or welding.
- the characteristics described above of the embodiments of FIGS. 4E and 4F advantageously make it possible to clamp the half-moon type assembled terminals 53, 53 'on a terminal block (not shown) in a single operation, that is to say by means of a clamping operation of a fixing element inserted in recesses 59, 59 'respectively defines between two lugs 53 and between two lugs 53'.
- the method of assembly between the terminal block and the connection means 30 is thus simplified.
- these features also make it possible to improve the compactness of the power subset 3.
- connection means 40 comprises a lug 42 formed integrally and formed at one end. 'of a driver 22'.
- the pod 42 called the pod obtained, is here formed by crushing and uncoupling the end 41 'of the conductor 22'.
- the lug 42 can of course be obtained by another machining method known to those skilled in the art, for example by drilling.
- a hood 45 may be provided for the protection of a connection means 30 or 40.
- the hood 45 may allow, in some embodiments of the power unit according to the invention, in particular to improve the reliability thereof, for example in terms of electrical protection, against short circuits, or in terms of protection against the environment.
- this cover 45 makes it possible to ensure a reinforced seal with respect to water or dust.
- plastic cover 45 may comprise a polarizer
- the invention is not limited to the examples of embodiments which have just been described and many variants may be made by the skilled person.
- the invention finds particular particularly advantageous applications in combination with the dual-voltage network system said 14 + X.
- the invention can be used both in combination with a system comprising a rotary electric machine operating as an alternator, and with a system comprising a rotating electrical machine operating in alternator-starter.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Power Conversion In General (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0755004A FR2916097B1 (fr) | 2007-05-11 | 2007-05-11 | Sous-ensemble de puissance d'un systeme micro-hybride pour vehicule automobile |
| PCT/FR2008/050805 WO2008149002A2 (fr) | 2007-05-11 | 2008-05-07 | Sous- ensemble de puissance d'un systeme micro-hybride pour vehicule automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2144776A2 true EP2144776A2 (fr) | 2010-01-20 |
Family
ID=39183020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08805755A Withdrawn EP2144776A2 (fr) | 2007-05-11 | 2008-05-07 | Sous- ensemble de puissance d'un systeme micro-hybride pour vehicule automobile |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8415824B2 (fr) |
| EP (1) | EP2144776A2 (fr) |
| CN (1) | CN101678747A (fr) |
| FR (1) | FR2916097B1 (fr) |
| WO (1) | WO2008149002A2 (fr) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202009011111U1 (de) * | 2009-08-14 | 2009-10-15 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | Antriebsanordnung, beispielsweise für ein Elektrofahrrad |
| DE102009055331A1 (de) * | 2009-12-28 | 2011-06-30 | Robert Bosch GmbH, 70469 | Vorrichtung und Verfahren zur Erkennung einer Verpolung auf einer Niedervoltseite eines Gleichspannungswandlers in einem Zweispannungsbordnetz |
| JP6014910B2 (ja) * | 2011-01-21 | 2016-10-26 | 矢崎総業株式会社 | 高圧導電路及びワイヤハーネス |
| US9073438B2 (en) | 2011-10-28 | 2015-07-07 | General Electric Company | System for selectively coupling an energy source to a load and method of making same |
| CN104254970B (zh) * | 2012-04-27 | 2017-03-08 | 三菱电机株式会社 | Dc/dc转换器、车载设备及充电装置 |
| US9270102B2 (en) | 2013-07-30 | 2016-02-23 | Ford Global Technologies, Inc. | Multilayered bus bar |
| US10023072B2 (en) * | 2013-08-26 | 2018-07-17 | Johnson Controls Technology Company | DC-DC converter for vehicle |
| US10550816B2 (en) | 2016-02-17 | 2020-02-04 | General Electric Company | Start/stop system for vehicles and method of making same |
| CN107785360B (zh) * | 2016-08-26 | 2020-04-14 | 台达电子企业管理(上海)有限公司 | 功率芯片及桥式电路 |
| DE102019220264A1 (de) * | 2019-12-19 | 2021-06-24 | Bombardier Transportation Gmbh | Niederinduktives Verbinden räumlich getrennter Stromrichteranordnungen |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5517063A (en) * | 1994-06-10 | 1996-05-14 | Westinghouse Electric Corp. | Three phase power bridge assembly |
| JP4032723B2 (ja) * | 2001-12-06 | 2008-01-16 | 松下電器産業株式会社 | 空調装置 |
| DE10248821A1 (de) * | 2002-10-19 | 2004-04-29 | Robert Bosch Gmbh | Versorgungsleitungsstruktur |
| US7258183B2 (en) * | 2003-09-24 | 2007-08-21 | Ford Global Technologies, Llc | Stabilized electric distribution system for use with a vehicle having electric assist |
| US7358442B2 (en) * | 2003-09-30 | 2008-04-15 | Rockwell Automation Technologies, Inc. | Bus structure for power switching circuits |
-
2007
- 2007-05-11 FR FR0755004A patent/FR2916097B1/fr not_active Expired - Fee Related
-
2008
- 2008-05-07 WO PCT/FR2008/050805 patent/WO2008149002A2/fr not_active Ceased
- 2008-05-07 EP EP08805755A patent/EP2144776A2/fr not_active Withdrawn
- 2008-05-07 CN CN200880015701A patent/CN101678747A/zh active Pending
- 2008-05-07 US US12/599,573 patent/US8415824B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
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| None * |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110006599A1 (en) | 2011-01-13 |
| FR2916097A1 (fr) | 2008-11-14 |
| WO2008149002A3 (fr) | 2009-03-12 |
| CN101678747A (zh) | 2010-03-24 |
| US8415824B2 (en) | 2013-04-09 |
| FR2916097B1 (fr) | 2015-05-22 |
| WO2008149002A2 (fr) | 2008-12-11 |
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