WO2022189467A1 - Systeme d'alimentation en tension, procede d'alimentation d'une charge par un tel systeme d'alimentation en tension et vehicule comprenant un tel systeme d'alimentation en tension - Google Patents
Systeme d'alimentation en tension, procede d'alimentation d'une charge par un tel systeme d'alimentation en tension et vehicule comprenant un tel systeme d'alimentation en tension Download PDFInfo
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- WO2022189467A1 WO2022189467A1 PCT/EP2022/055954 EP2022055954W WO2022189467A1 WO 2022189467 A1 WO2022189467 A1 WO 2022189467A1 EP 2022055954 W EP2022055954 W EP 2022055954W WO 2022189467 A1 WO2022189467 A1 WO 2022189467A1
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- Prior art keywords
- terminal
- voltage
- supply system
- power supply
- lnt
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- 238000000034 method Methods 0.000 title claims description 12
- 101150100287 DDX39B gene Proteins 0.000 claims abstract description 18
- 101150032839 SLC7A9 gene Proteins 0.000 claims abstract description 18
- 101150039658 Prrc2a gene Proteins 0.000 claims abstract description 9
- 229910002601 GaN Inorganic materials 0.000 claims description 9
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 claims description 8
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 7
- 210000004027 cell Anatomy 0.000 description 29
- 239000003990 capacitor Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 230000005669 field effect Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 210000003771 C cell Anatomy 0.000 description 1
- 102100032919 Chromobox protein homolog 1 Human genes 0.000 description 1
- 101000797584 Homo sapiens Chromobox protein homolog 1 Proteins 0.000 description 1
- SOXUFMZTHZXOGC-UHFFFAOYSA-N [Li].[Mn].[Co].[Ni] Chemical compound [Li].[Mn].[Co].[Ni] SOXUFMZTHZXOGC-UHFFFAOYSA-N 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000010363 phase shift Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/08—Three-wire systems; Systems having more than three wires
- H02J1/082—Plural DC voltage, e.g. DC supply voltage with at least two different DC voltage levels
-
- 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
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/19—Switching between serial connection and parallel connection of battery modules
-
- 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
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
- B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
-
- 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
- B60L2210/10—DC to DC converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0024—Parallel/serial switching of connection of batteries to charge or load circuit
Definitions
- TITLE VOLTAGE SUPPLY SYSTEM, METHOD FOR SUPPLYING A LOAD BY SUCH A VOLTAGE SUPPLY SYSTEM AND VEHICLE COMPRISING SUCH A VOLTAGE SUPPLY SYSTEM
- the present invention relates to a voltage supply system, a motor vehicle comprising such a voltage supply system and a method for supplying a load by a supply system included in a vehicle.
- the present invention can be applied in particular in the field of hybrid motor vehicles.
- the first battery is more highly stressed than the second battery, which requires oversizing this first battery, for example by doubling its number of cells, in order to guarantee it a life equivalent to that of the second battery.
- the object of the invention is to at least partially overcome the aforementioned problem.
- a voltage supply system comprising: a first, a second and a third supply terminal separate from each other, a voltage regulation terminal , an output terminal, an electrical connection, for example by wiring, between said voltage regulation terminal and said output terminal, the electrical connection having a connection resistance, a first battery generating a first supply voltage between said first power terminal and said second power supply terminal, a second battery generating a second power supply voltage between said second input terminal and said third power supply terminal, said second battery being connected in series with said first battery so supplying a first output voltage between said third power supply terminal and said first power supply terminal, a voltage converter D C/DC configured to in a first mode of operation convert said first output voltage to a second output voltage between said regulation terminal and said first supply terminal, said second output voltage being lower than said first output voltage and configured for in a second mode of operation not regulating the voltage between said regulation terminal and said first supply terminal, a connection switch connecting said second supply terminal and said output terminal, a connection resist
- This voltage supply system is characterized in that a connection switch in parallel with a connection resistor connects the second supply terminal and the output terminal.
- the third output voltage is generated either directly by the first battery when the connection switch is closed, or simultaneously by the first battery and by the DC/DC voltage converter when the switch is closed. connection is open.
- the connection resistor makes it possible to ensure an asymmetrical distribution of the current supplied by the first battery and by the DC/DC voltage converter and therefore an asymmetrical use of the DC/DC voltage converter and of the first battery.
- the connection switch when the connection switch is open, the DC/DC voltage converter will supply more current than the first battery, which contributes to limiting the direct use of the first battery, thus making it possible to limit sizing in terms of cells while preserving its lifespan.
- a voltage supply system according to the invention may also comprise one or more of the following optional characteristics, taken in isolation or else according to any technically possible combination.
- the power supply system further comprises a voltage converter control unit.
- the power supply system further comprises means for controlling the connection switch.
- connection resistor is a resistor.
- connection resistance is a dipole satisfying Ohm's law.
- the power supply system further comprises a first capacitor connecting the third power supply terminal to the first power supply terminal.
- the power supply system further comprises a second capacitor connecting the output terminal to the first power supply terminal.
- the power supply system further comprises a second capacitor connecting the voltage regulation terminal to the first power supply terminal.
- connection switch is normally closed.
- a normally closed switch is a switch which allows a current to pass through it when the DC/DC voltage converter is inactive.
- the DC/DC voltage converter does not regulate the voltage between the regulation terminal and the first supply terminal, because this voltage converter is not working (i.e. it is inactive or faulty).
- connection switch is closed when the DC/DC voltage converter is not operating.
- connection switch comprises a transistor of the normally closed type, for example a P-channel FET transistor.
- a normally closed type transistor is a transistor which allows a current to flow through it when the DC/DC voltage converter is inactive.
- the P-channel FET transistor is an enhancement transistor whose gate is grounded and the source is at a DC supply voltage, for example the first DC supply voltage.
- connection switch comprises a normally open type transistor, for example an N channel FET transistor, and a charge pump circuit able to apply a control voltage to said normally open type transistor.
- connection switch comprises a transistor of the normally open type, for example an N-channel FET transistor, and a charge pump circuit capable of applying a control voltage to said normally open type transistor to close said normally open type transistor when the voltage converter is not operating.
- a normally open type transistor is a transistor which does not allow a current to flow through it when the DC/DC voltage converter is inactive.
- connection switch is configured to be closed when the voltage converter operates in the second operating mode.
- connection switch comprises a MOSFET transistor, for example made of silicon or silicon carbide, or a gallium nitride FET transistor or a gallium nitride FIEMT transistor.
- the electrical connection between the output terminal and the voltage regulation terminal has a connection resistance of less than 1 m ⁇ , preferably less than or equal to 0.8 m ⁇ , even more preferably less than or equal to equal to 0.6 mQ.
- connection resistance is between 1 and 100 m ⁇ , preferably between 5 and 80 m ⁇ .
- connection resistance is 2 to 200 times higher, preferably 10 to 160 times higher, than the connection resistance of the electrical connection between the output terminal and the output terminal. regulation.
- the DC/DC voltage converter further comprises one or more switching cells, said or each of said switching cells comprising:
- a switch arm having a high side switch and a low side switch connected to each other at a midpoint, said switch arm being connected between said first power supply terminal and said third power supply terminal , and
- the high side switch and/or said low side switch is a MOSFET transistor, for example made of silicon or silicon carbide, or a gallium nitride FET transistor or a gallium nitride HEMT transistor.
- the power supply system is configured to, in a first mode of use of the power supply system, close the connection switch and put the voltage converter in the second mode of operation, and in a second mode of use of the power supply system, opening the connection switch and placing the voltage converter in the first mode of operation.
- the power supply system is configured for, in a third mode of use of the power supply system, closing the connection switch and placing the voltage converter in the first mode of operation,
- a vehicle comprising a power supply system according to the first aspect of the invention.
- the vehicle according to the second aspect of the invention may further comprise the following optional feature that the vehicle further comprises a first load connected between the third voltage supply terminal and the first voltage supply terminal and a second load connected between the output terminal and the first voltage supply terminal or between the regulation terminal and the first voltage supply terminal.
- a third aspect of the invention there is also proposed a method for supplying a second load by means of a third output voltage by a supply system according to the first aspect of the invention or by a supply system included in a vehicle according to the second aspect of the invention, said supply method comprising the steps of:
- the power supply method according to the third aspect of the invention may further comprise the following optional feature according to which the power supply method further comprises the steps consisting in in a third mode of use of the power supply system , close the connection switch and put the voltage converter in the first mode of operation.
- Figure 1 schematically represents a voltage supply system 100 in a first embodiment of the invention
- Figure 2 schematically represents a voltage supply system 300 in a second embodiment of the invention.
- the voltage supply system 100 firstly comprises a DC/DC voltage converter 10, a first supply terminal Ba1, a second supply terminal Ba2 and a third supply terminal Ba3.
- the three power supply terminals Ba1, Ba2 and Ba3 are separate from each other and the first power supply terminal Ba1 is electrically connected to an electrical ground GND.
- the voltage supply system 100 also comprises a voltage regulation terminal Br and an output terminal Bs, the output terminal Bs being electrically connected, for example by wiring, to the voltage regulation terminal Br.
- the voltage regulation terminal Br and the output terminal Bs can be electrically connected by a connection bar of low resistance or by any connection means having a low resistance, for example less than 1 m ⁇ .
- connection resistance Rc between the voltage regulation terminal Br and the output terminal Bs due to the electrical connection between the output terminal Bs and the regulation terminal Br.
- the voltage supply system 100 further comprises a first power supply source designed to deliver a first DC supply voltage Va1.
- This first electrical power source is connected between the first power supply terminal Ba1 and the second power supply terminal Ba2.
- this first electrical power source is a battery Bat1 designed to supply, for example, a voltage of 12 V.
- the voltage supply system 100 further comprises a safety switch SW and a second power supply source designed to deliver a second DC supply voltage Va2.
- This second electrical power source is connected to the second power supply terminal Ba2 and via the safety switch SW to the third power supply terminal Ba3.
- this second electrical power source is a battery Bat2 designed to supply, for example, a voltage of 36 V.
- the battery Bat1 comprises three cells or accumulators in series and the battery Bat2 comprises five cells or accumulators in series.
- the cells of the batteries Bat1 and of the battery Bat2 are lithium-ion cells or even lithium-iron-phosphate cells called LFP cells or again lithium nickel-manganese-cobalt cells called NMC cells.
- the first electrical power source and the second electrical power source are connected in series so that the first DC power supply voltage Va1 and the second DC power supply voltage Va2 are added to provide a first output voltage Vs1 between the third supply terminal Ba3 and the first supply terminal Ba1.
- the first battery Bat1 and the second battery Bat2 are connected in series, i.e. the plus pole of the first battery Bat1 is connected to the minus pole of the second battery Bat2 so as to supply a first output voltage Vs1 of 48V between the third power supply terminal Ba3 and the first power supply terminal Ba1
- the voltage converter 10 further comprises one or more voltage conversion cells.
- the voltage conversion cell or cells are connected to the first power supply terminal Ba1, to the third power supply terminal Ba3 and to the voltage regulation terminal Br to perform a conversion between the first output voltage Vs1 and a second output voltage Vs2 between the voltage regulation terminal Br and the first supply terminal Ba1, the second output voltage Vs2 being lower than the first output voltage Vs1.
- the voltage converter 10 comprises a single voltage conversion cell and this conversion cell is a switching cell. It comprises for example a switching arm comprising a high side switch T1 and a low side switch T2 connected to each other at a midpoint Pm. The switching arm is connected between the third power supply terminal Ba3 and the first power supply terminal Ba1 to receive the first output voltage Vs1. This switching cell further comprises an inductance L connecting the midpoint Pm to the voltage regulation terminal Br.
- the switch cell is designed to be controlled by DC commands to alternately open and close the high side and low side switch in opposition to each other so as to generate the second output voltage Vs2 from the first output voltage Vs1.
- the DC commands are issued by a control unit (not shown in Figure 1) of said voltage converter 10.
- the output terminal Bs being electrically connected to the voltage regulation terminal Br, it follows that a third output voltage Vs3 is generated between the output regulation terminal Bs and the first supply terminal Ba1.
- This third output voltage Vs3 is substantially equal, to the ready voltage drop due to the connection resistance between the voltage regulation terminal Br and the output terminal Bs, to the second output voltage Vs3.
- the voltage supply system 100 further comprises a capacitor C1 connecting the third power supply terminal Ba3 to the first power supply terminal Ba1 and a capacitor C2 connecting the regulation terminal Br to the first power supply terminal Ba1.
- capacitor C2 can be connected between output terminal Bs and first supply terminal Ba1.
- the voltage supply system 100 also comprises a connection switch lnt_c and a connection resistor R connected in parallel between the second supply terminal Ba2 and the output terminal Bs.
- the connection switch lnt_c is controlled by control means (not shown in Figure 1).
- the connection resistance R is between 5 and 80 mO. In other words, the connection resistance R has a value from 10 to 160 times higher than the connection resistance Rc.
- Each switch SW, T1, T2 and lnt_c comprises first and second main terminals and a control terminal intended to selectively open and close the switch SW, T1, T2 and lnt_c between its two main terminals according to a control signal applied to it.
- the switches SW, T1, T2 and lnt_c are for example produced by transistor switches such as metal-oxide gate field-effect transistors, generally designated by the acronym MOSFET (from the English “Metal Oxide Semiconductor Field Effect Transistor”).
- the switches SW, T1 and T2 are N-channel MOSFETs and the switch lnt_c is made in the form of two transistors T3 and T3' mounted head to tail (by an electrical connection between their respective source or alternatively by an electrical connection between their respective drain), the two transistors T3 and T3' being P-channel MOSFETs controlled simultaneously on opening or closing.
- the lnt_c switch can be made in the form of a single P-channel MOSFET transistor T3.
- the switches SW, T1, T2 are normally open switches and the switch lnt_c is a normally closed switch.
- the motor vehicle comprising the voltage supply system 100 also comprises a first load Ch1 connected between the third voltage supply terminal Ba3 and the first voltage supply terminal Ba1 and a second load Ch2, for example a radio or a lamp, connected between the output terminal Bs and the first voltage supply terminal Ba1.
- the motor vehicle has two on-board networks, the first being powered by the first output voltage Vs1 and the second being powered by the second output voltage Vs2.
- the first on-board network is powered by a voltage of 48V and the second on-board network is powered by a voltage of 12V.
- the motor vehicle comprises a starter powered by the second on-board network.
- a first mode of use MOD1 of the power supply system 100 used for example when the vehicle is stationary, i.e. the electric and/or heat engine propelling the motor vehicle is stationary, the means of the connection switch lnt_c keep it in a closed state, i.e. the transistors T3 and T3' are in an on state, the switch SW is open and the control unit of the voltage converter 10 operates this last in the second mode of operation, i.e. the voltage converter 10 does not regulate the voltage between the regulation terminal Br and the first supply terminal Ba1.
- the first on-board network is powered solely by the battery Bat1.
- the third output voltage Vs3 supplying the second load Ch2 is supplied only by the first battery Bat1.
- a second mode of use MOD2 of the power supply system 100 used for example when the engine of the vehicle is running, the control means of the connection switch lnt_c keep it in an open state, i.e. the transistors T3 and T3' are in an off state, the switch SW is closed and the control unit of the voltage converter 10 operates the latter in the first mode of operation, i.e. the voltage converter 10 converts the first voltage output voltage Vs1 into a second output voltage Vs2 between the regulation terminal Br and the first supply terminal Ba1.
- the battery Bat1 is connected to the output terminal Bs via the connection resistor R.
- the ratio between the connection resistance Rc and the connection resistance R causes an asymmetrical distribution of the current supplied by the battery Bat1 and by the voltage converter 10 and therefore an asymmetrical contribution from the voltage converter 10 and the battery Bat1.
- the voltage converter 10 will contribute from 10 to 160 times more than the battery Bat1 to the regulation of the voltage of the second output voltage Vs2 which contributes to limiting the direct use of the battery Bat1, thus making it possible to limit its dimensioning in terms of cells while preserving its lifetime.
- a third mode of use MOD3 of the power supply system 100 used for example when the engine is started by means of the starter powered by the second on-board network, the control means of the connection switch lnt_c maintain the latter in a closed state, i.e. the transistors T3 and T3' are in an on state, the switch SW is closed and the control unit of the voltage converter 10 begins to operate the latter in the first mode of operation, i.e. the voltage converter 10 converts the first output voltage Vs1 into a second output voltage Vs2 between the regulation terminal Br and the first supply terminal Ba1.
- the battery Bat1 is directly connected to the output terminal Bs so that the battery Bat1 is able to contribute to supplying, in the same way as the voltage converter 10, the power necessary for the vehicle engine start.
- connection switch lnt_c′ is made in the form of two transistors T3” and T3'” mounted head to tail (by an electrical connection between their respective source or alternatively by an electrical connection between their respective drain) and a charge pump circuit.
- the two transistors T3" and T3'" are N-channel MOSFETs controlled simultaneously on opening or closing by their control means, said control means comprising the charge pump circuit, the latter being capable of applying a control voltage on the gate of the transistors T3”,
- T3' normally open type.
- the combination of the normally open transistors T3”, T3′” and the charge pump circuit produces a normally closed switch lnt_c′.
- the switch lnt_c’ can be made using a single N-channel MOSFET transistor T3”.
- the DC / DC converter 10 comprises a single cell.
- the number of C cells could be different without departing from the scope of the present invention.
- the number of cells N can for example be between 2 and 12, being for example 2, 3, 4, 5 or 6.
- the switches SW, T1, T2, T3, T3′, T3′′, T3′′′ are MOSFETs, for example made of silicon (Si-MOSFET) or carbide. silicon (SiC-MOSFET).
- these transistors can be transistors of the IGBT type (standing for “Insulated-Gate Bipolar Transistor”) or of the FET type (standing for “Field-effect transistor”) made of gallium nitride (GaN -FET), or even of the FIEMT (high-electron-mobility transistor) type, for example made of gallium nitride.
- DC/DC voltage converter topologies can be used in a first mode of operation to convert the first output voltage into a second output voltage between the regulation terminal and the first power supply terminal.
- the second output voltage being lower than the first output voltage and in a second operating mode not to regulate the voltage between the regulation terminal and the first supply terminal.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Dc-Dc Converters (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN202280033348.3A CN117242668A (zh) | 2021-03-08 | 2022-03-08 | 电压供应系统、通过这种电压供应系统向负载供电的方法以及包括这种电压供应系统的车辆 |
US18/549,212 US20240154409A1 (en) | 2021-03-08 | 2022-03-08 | Voltage supply system, method for supplying a load via such a voltage supply system and vehicle comprising such a voltage supply system |
EP22714369.0A EP4305730A1 (fr) | 2021-03-08 | 2022-03-08 | Système d'alimentation en tension, procédé d'alimentation d'une charge par un tel système d'alimentation en tension et véhicule comprenant un tel système d'alimentation en tension |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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FRFR2102234 | 2021-03-08 | ||
FR2102234A FR3120485B1 (fr) | 2021-03-08 | 2021-03-08 | Systeme d’alimentation en tension, procede d’alimentation d’une charge par un tel systeme d’alimentation en tension et vehicule comprenant un tel systeme d’alimentation en tension |
Publications (1)
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WO2022189467A1 true WO2022189467A1 (fr) | 2022-09-15 |
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PCT/EP2022/055954 WO2022189467A1 (fr) | 2021-03-08 | 2022-03-08 | Systeme d'alimentation en tension, procede d'alimentation d'une charge par un tel systeme d'alimentation en tension et vehicule comprenant un tel systeme d'alimentation en tension |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240154409A1 (fr) |
EP (1) | EP4305730A1 (fr) |
CN (1) | CN117242668A (fr) |
FR (1) | FR3120485B1 (fr) |
WO (1) | WO2022189467A1 (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3316440A1 (fr) * | 2016-10-26 | 2018-05-02 | Samsung SDI Co., Ltd. | Système de batterie avec équilibrage intégré et procédé d'équilibrage d'un système de batterie |
WO2020011806A1 (fr) * | 2018-07-12 | 2020-01-16 | Vitesco Technologies GmbH | Dispositif de batterie multi-tension et réseau de bord pour un véhicule automobile |
EP3576241B1 (fr) * | 2018-06-01 | 2020-07-29 | Samsung SDI Co., Ltd. | Système de batterie |
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- 2021-03-08 FR FR2102234A patent/FR3120485B1/fr active Active
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2022
- 2022-03-08 CN CN202280033348.3A patent/CN117242668A/zh active Pending
- 2022-03-08 US US18/549,212 patent/US20240154409A1/en active Pending
- 2022-03-08 WO PCT/EP2022/055954 patent/WO2022189467A1/fr active Application Filing
- 2022-03-08 EP EP22714369.0A patent/EP4305730A1/fr active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3316440A1 (fr) * | 2016-10-26 | 2018-05-02 | Samsung SDI Co., Ltd. | Système de batterie avec équilibrage intégré et procédé d'équilibrage d'un système de batterie |
EP3576241B1 (fr) * | 2018-06-01 | 2020-07-29 | Samsung SDI Co., Ltd. | Système de batterie |
WO2020011806A1 (fr) * | 2018-07-12 | 2020-01-16 | Vitesco Technologies GmbH | Dispositif de batterie multi-tension et réseau de bord pour un véhicule automobile |
Also Published As
Publication number | Publication date |
---|---|
EP4305730A1 (fr) | 2024-01-17 |
FR3120485A1 (fr) | 2022-09-09 |
CN117242668A (zh) | 2023-12-15 |
US20240154409A1 (en) | 2024-05-09 |
FR3120485B1 (fr) | 2023-07-07 |
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