WO2022084262A1 - Method for charging the electric power supply battery of the engine of a motor vehicle - Google Patents

Method for charging the electric power supply battery of the engine of a motor vehicle Download PDF

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Publication number
WO2022084262A1
WO2022084262A1 PCT/EP2021/078839 EP2021078839W WO2022084262A1 WO 2022084262 A1 WO2022084262 A1 WO 2022084262A1 EP 2021078839 W EP2021078839 W EP 2021078839W WO 2022084262 A1 WO2022084262 A1 WO 2022084262A1
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WO
WIPO (PCT)
Prior art keywords
battery
charge
activation
vehicle
charging method
Prior art date
Application number
PCT/EP2021/078839
Other languages
French (fr)
Inventor
Quentin BELLEMIN NOEL
Antoine DELEVOYE
Christophe Nicot
Original Assignee
Ntn-Snr Roulements
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ntn-Snr Roulements filed Critical Ntn-Snr Roulements
Publication of WO2022084262A1 publication Critical patent/WO2022084262A1/en

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Classifications

    • 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
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/342—The other DC source being a battery actively interacting with the first one, i.e. battery to battery charging
    • 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
    • B60L3/12—Recording operating variables ; Monitoring of operating variables
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
    • B60L50/62—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles charged by low-power generators primarily intended to support the batteries, e.g. range extenders
    • 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
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/50—Charging stations characterised by energy-storage or power-generation means
    • B60L53/53—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
    • 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
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • 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
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/13—Maintaining the SoC within a determined range
    • 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
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/005—Detection of state of health [SOH]
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • 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
    • Y02T10/62—Hybrid vehicles
    • 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
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

Definitions

  • the invention relates to a method for charging the electrical supply battery of the engine of a motor vehicle, as well as a backup battery for the implementation of such a method.
  • the main constraint for the deployment of electric vehicles is the autonomy of the batteries they carry, and therefore the possibility for the user to be able to recharge his vehicle within a network of fixed terminals which is dense enough not to risk a immobilization due to a complete discharge of the battery.
  • the invention aims to solve this problem by proposing a method for charging a vehicle battery which allows the user, in particular in the event of complete discharge, to benefit autonomously and in complete safety from an additional autonomy which may in particular allow him to reach a charging station.
  • the invention proposes a method for charging the electrical supply battery of the engine of a motor vehicle, said battery being managed by a BMS type system controlling at least the level of charge of said battery, said method comprising:
  • a pack comprising at least one electric battery which is inert before activation and which, after activation, delivers a given unit electrical charge, said pack being equipped with a communication and activation module for each of the batteries;
  • the invention proposes a backup battery for the implementation of such a charging method, said backup battery comprising a box in which is packaged a pack comprising at least one electric battery which is inert before activation and which, after activation, delivers a given unit electric charge, said box also integrating a device for connecting the battery pack to a BMS-type system of the electric power supply battery of the engine of a motor vehicle and a communication module and activation of each of the batteries, said module comprising means for activating at least one battery as a function of a criterion of acceptability of the unit charge with regard to the level of charge given by the BMS type system.
  • FIG.1 is a diagram of the steps of a charging method according to one embodiment of the invention.
  • FIG.2 is an open schematic representation of a backup battery according to one embodiment of the invention.
  • FIG.3a is an exploded schematic representation of a backup battery according to one embodiment of the invention.
  • FIG.3b being an open schematic representation of this battery.
  • an emergency battery 1 is described for the implementation of a method for charging the electrical supply battery of the engine of a motor vehicle.
  • the emergency battery 1 comprises a casing 2 in which is packaged a pack comprising at least one electric battery 3 which is inert before activation and which, after activation, delivers a given unit electric charge.
  • the batteries 3 used are primary, that is to say non-rechargeable, and deliver their unit charge completely independently after activation.
  • the pack comprises at least one thermal cell 3 formed of elementary cells each comprising a heating pad, a cathode, an electrolyte in the solid state in the absence of heating and an anode.
  • the main quality of this type of battery 3 is the maintenance of its unit charge, without maintenance, for several years.
  • the unit charge is delivered autonomously.
  • the voltage of the battery 3 can easily be modulated according to the number of stacked cells, and its power according to the size of said cells.
  • the cells can be produced by powder compression, an electrical track connecting the heating pads to two activation terminals located outside the battery 3.
  • the box 2 incorporates activation means which allow the sending of a heating current at the activation terminals of cell 3, said current inducing a rise in temperature of the heating pads of the various cells to a melting temperature of the electrolyte.
  • the cell 3 thus primed then delivers its unit charge between the anode and the cathode until it is completely discharged without requiring external intervention, in particular in that it heats up during its discharge.
  • the box 2 of the emergency battery 1 also incorporates a device 5 for connecting the battery pack 3 to a BMS-type system of the electric power supply battery of the engine of a motor vehicle, said system controlling the operation of the battery of the vehicle and in particular at least the charge level of said battery.
  • connection device comprises a connector 6 compatible with the BMS type system, said connector being carried by a cable 7 projecting from the casing 2 and/or integrated into the casing 2, a connection cable 8 being then provided.
  • the connector 6 is connected to a module 9 for communication and activation of each of the batteries 3, said module comprising in particular the means for activating said batteries, each of said batteries being connected to said module by a power cable 10.
  • the module 9 can be integrated into the BMS type system of the vehicle.
  • the charging method provides, after connection of the battery pack 3 of the emergency battery 1 to the battery of the vehicle, to put the module 9 in communication with the BMS type system and to interrogate said BMS type system to, in depending on a criterion of acceptability of the unit load with regard to the level of charge given by said system, activate or not an electric battery 3.
  • the activation means allow the sending of a heating current from a thermal battery 3 according to a criterion of acceptability of the unit charge of said battery with regard to the level of charge given by the system.
  • BMS type a criterion of acceptability of the unit charge of said battery with regard to the level of charge given by the system.
  • the discharge of the unit charge of a battery 3 activated in the battery of the vehicle is carried out only insofar as said charge is considered acceptable for said battery according to the information provided by the BMS type system.
  • such a method makes it possible to carry out the charging of the battery of the vehicle in complete safety, in particular insofar as said charging can be carried out by a user of the vehicle who, in addition to the stress linked to the possible breakdown situation, n am not familiar with this type of intervention.
  • the discharge after activation being autonomous, it is advisable to make the preliminary checks more reliable, especially in the case of thermal batteries 3 whose operating temperature can increase in a dangerous way in the event of an anomaly in the acceptance of the charge by the vehicle battery.
  • the acceptability criterion comprises a maximum charge level of the vehicle battery before charging, the battery 3 being activated if the sum of its unit charge and of the charge given by the BMS type system is less than at more than 80% of the maximum battery charge.
  • the maximum charge level of the battery of the vehicle can be 5 kWh in order to be able to accept the charge of the emergency battery 1 .
  • the unit load can be accepted by the battery of the vehicle, in particular to avoid the case where the user would use the emergency battery 1 for a breakdown other than that relating to the discharge of the battery of his vehicle. .
  • the unit electrical charge of a cell 3 is less than 20% of the maximum charge of the vehicle battery.
  • the backup battery 1 can be used in the event of a power failure just to regain sufficient autonomy to reach the nearest charging station.
  • the backup battery 1 allows the user to get out of a dangerous situation if his breakdown occurs outside any infrastructure or in a dangerous place.
  • the pack comprises several electric batteries 3, the charging method providing for activating a number of batteries 3 according to the level of charge given by the BMS type system.
  • the pack can comprise electric batteries 3 of different capacity, in particular each corresponding to a given autonomy, and/or based on a different activation technology.
  • the number of batteries 3 activated is determined by the activation module 9.
  • the number of batteries 3 activated is determined according to an instruction given by the user, in particular with regard to autonomy it needs before the next charge.
  • the method provides for the interrogation of the BMS type system on at least one other parameter of the battery of the vehicle, among in particular the state of health of said battery and its temperature, the activation of the battery 3 also being conditioned by a criterion of acceptability relating to said parameter.
  • the state of health of the vehicle battery must be validated in order to be able to accept a fast charge.
  • the activation of the battery 3 can also be conditioned by:
  • the acceptability of at least one environmental criterion of the battery of the vehicle among in particular the outside temperature and the humidity, for example with regard to the acceptability of a rapid charge of the battery of the vehicle, of a range operating temperature and humidity compatible for outdoor use;
  • the charging method provides communication to the user of information relating to the progress of said charging, in particular by means of a dedicated visual and/or audio device, and/or by means of remote communication on a device owned by said user.
  • the communication and activation module 9 may include luminous indicators 11 and/or means of communication, in particular Bluetooth, with a dedicated application installed on the user's smartphone. This last achievement allows the user to move away from the vehicle during charging, in particular to put themselves in a safety zone while waiting to be able to leave.
  • the case 2 of the emergency battery 1 incorporates a device 12 for leaking the discharge of at least one battery 3, the method providing for monitoring the discharge of the unit charge of a battery 3 activated in the vehicle battery and, in the event of an anomaly, to connect the leakage device 12 of said discharge to interrupt the charging of said battery.
  • an embodiment of the charging method provides, after powering up (A) and connection of the module 9 of the backup battery 1 to the BMS type system (B), the interrogation of said system on the load acceptability criteria (C).
  • the method allows the disconnection of the battery pack 3 (J) then the de-energization of the emergency battery 1 (K).
  • the housing 2 has a cylindrical wall 13 rolling for its movement.
  • This embodiment allows the user to carry the emergency battery 1 in his vehicle, in particular by providing a dimension of the housing 2 which is comparable to that of a spare wheel in order to be able to be stored in its place, and to be able to easily move said backup battery for use, and this in particular despite the heavy weight of the batteries 3.
  • the backup battery 1 can be permanently integrated into the vehicle by being connected to the BMS type system of the battery.
  • the rolling wall 13 is covered with a protective strip 14, for example of elastomeric material, to facilitate the movement of the emergency battery 1 without risking damaging the housing 2 on the ground.
  • the protective strip forms a tread.
  • the protective strip 14 of the housing 2 is equipped with an orifice 15 for access to the connection device 5.
  • the box 2 can be equipped with at least one gripping handle 18, in particular to facilitate its removal from the vehicle.
  • the box 2 is formed of a body 16 delimiting an open conditioning space which is closed by a cover 17, said cover being removably mounted on the body 16 to allow access to the storage space. conditioning, in particular with a view to being able to replace the batteries 3 and/or to recycle them after activation.
  • the cover 17 is equipped with a gripping means facilitating its removal from the body 16.
  • the gripping handle 18 is formed on the cover 17, said cover being mounted on the upper opening of the body 16 which has a bottom from which extends the cylindrical wall 13 forming inside it the packaging space.
  • the housing 2 also incorporates a device for cooling the battery pack 3, in particular in the form of an insulating support 19 equipped with a cooling circuit 20.

Abstract

The invention relates to a method for charging the electric power supply battery of the engine of a motor vehicle, the battery being managed by a BMS system controlling at least the level of charge of the battery, the method involving: connecting a pack to the battery, comprising at least one electric battery cell, which is inert before activation and which, after activation, delivers a given unitary electric charge, the pack being provided with a module for communicating with and activating each of the battery cells; establishing a communication between the module and the BMS system; polling the BMS system in order, depending on an acceptability criterion for the unitary charge in relation to the level of charge provided by the system, to activate or not activate an electric battery cell; discharging the unitary charge of an activated battery cell into the battery of the vehicle.

Description

DESCRIPTION DESCRIPTION
Titre : Procédé de charge de la batterie d’alimentation électrique du moteur d’un véhicule automobile Title: Method for charging the electric power supply battery of the engine of a motor vehicle
L’invention concerne un procédé de charge de la batterie d’alimentation électrique du moteur d’un véhicule automobile, ainsi qu’une batterie de secours pour la mise en oeuvre d’un tel procédé. The invention relates to a method for charging the electrical supply battery of the engine of a motor vehicle, as well as a backup battery for the implementation of such a method.
La contrainte principale de déploiement des véhicules électriques est l’autonomie des batteries qu’ils embarquent, et donc la possibilité pour l’utilisateur de pouvoir recharger son véhicule au sein d’un réseau de bornes fixes qui soit suffisamment dense pour ne pas risquer une immobilisation due à une décharge complète de la batterie. The main constraint for the deployment of electric vehicles is the autonomy of the batteries they carry, and therefore the possibility for the user to be able to recharge his vehicle within a network of fixed terminals which is dense enough not to risk a immobilization due to a complete discharge of the battery.
Ce problème est d’autant plus critique que l’indicateur d’autonomie des véhicules électriques demeure fortement fluctuant, notamment en fonction du profil du déplacement et des conditions extérieures, ce qui ne donne pas suffisamment confiance à l’utilisateur pour qu’il utilise la capacité quasi complète des batteries. This problem is all the more critical in that the range indicator for electric vehicles fluctuates greatly, in particular depending on the travel profile and external conditions, which does not give the user enough confidence to use almost full capacity of the batteries.
L’invention vise à résoudre ce problème en proposant un procédé de charge d’une batterie de véhicule qui permet à l’utilisateur, notamment en cas de décharge complète, de bénéficier de façon autonome et en toute sécurité d’une autonomie supplémentaire pouvant notamment lui permettre de rallier une borne de recharge. The invention aims to solve this problem by proposing a method for charging a vehicle battery which allows the user, in particular in the event of complete discharge, to benefit autonomously and in complete safety from an additional autonomy which may in particular allow him to reach a charging station.
A cet effet, selon un premier aspect, l’invention propose un procédé de charge de la batterie d’alimentation électrique du moteur d’un véhicule automobile, ladite batterie étant gérée par un système de type BMS contrôlant au moins le niveau de charge de ladite batterie, ledit procédé prévoyant : To this end, according to a first aspect, the invention proposes a method for charging the electrical supply battery of the engine of a motor vehicle, said battery being managed by a BMS type system controlling at least the level of charge of said battery, said method comprising:
- de connecter à ladite batterie un pack comprenant au moins une pile électrique qui est inerte avant activation et qui, après activation, délivre une charge électrique unitaire donnée, ledit pack étant équipé d’un module de communication et d’activation de chacune des piles ; - to connect to said battery a pack comprising at least one electric battery which is inert before activation and which, after activation, delivers a given unit electrical charge, said pack being equipped with a communication and activation module for each of the batteries;
- de mettre en communication ledit module avec le système de type BMS ;- To put said module in communication with the BMS type system;
- d’interroger ledit système de type BMS pour, en fonction d’un critère d’acceptabilité de la charge unitaire au regard du niveau de charge donné par ledit système, activer ou non une pile électrique ; - to interrogate said BMS type system to, depending on a criterion of acceptability of the unit load with regard to the level of charge given by said system, activate or not an electric battery;
- de décharger la charge unitaire d’une pile activée dans la batterie du véhicule. - to discharge the unit charge of an activated battery in the vehicle battery.
Selon un deuxième aspect, l’invention propose une batterie de secours pour la mise en oeuvre d’un tel procédé de charge, ladite batterie de secours comprenant un boîtier dans lequel est conditionné un pack comprenant au moins une pile électrique qui est inerte avant activation et qui, après activation, délivre une charge électrique unitaire donnée, ledit boîtier intégrant également un dispositif de connexion du pack de piles à un système de type BMS de la batterie d’alimentation électrique du moteur d’un véhicule automobile et un module de communication et d’activation de chacune des piles, ledit module comprenant des moyens d’activation d’au moins une pile en fonction d’un critère d’acceptabilité de la charge unitaire au regard du niveau de charge donné par le système de type BMS. According to a second aspect, the invention proposes a backup battery for the implementation of such a charging method, said backup battery comprising a box in which is packaged a pack comprising at least one electric battery which is inert before activation and which, after activation, delivers a given unit electric charge, said box also integrating a device for connecting the battery pack to a BMS-type system of the electric power supply battery of the engine of a motor vehicle and a communication module and activation of each of the batteries, said module comprising means for activating at least one battery as a function of a criterion of acceptability of the unit charge with regard to the level of charge given by the BMS type system.
D’autres particularités et avantages de l’invention apparaîtront dans la description qui suit, faite en référence aux figures jointes, dans lesquelles :Other particularities and advantages of the invention will appear in the following description, made with reference to the attached figures, in which:
[Fig.1 ] est un diagramme des étapes d’un procédé de charge selon un mode de réalisation de l’invention ; [Fig.1] is a diagram of the steps of a charging method according to one embodiment of the invention;
[Fig.2] est une représentation schématique ouverte d’une batterie de secours selon un mode de réalisation de l’invention ; [Fig.2] is an open schematic representation of a backup battery according to one embodiment of the invention;
[Fig.3a] est une représentation schématique éclatée d’une batterie de secours selon un mode de réalisation de l’invention ; [Fig.3a] is an exploded schematic representation of a backup battery according to one embodiment of the invention;
[Fig.3b] étant une représentation schématique ouverte de cette batterie. En relation avec ces figures, on décrit une batterie de secours 1 pour la mise en oeuvre d’un procédé de charge de la batterie d’alimentation électrique du moteur d’un véhicule automobile. [Fig.3b] being an open schematic representation of this battery. In relation to these figures, an emergency battery 1 is described for the implementation of a method for charging the electrical supply battery of the engine of a motor vehicle.
La batterie de secours 1 comprend un boîtier 2 dans lequel est conditionné un pack comprenant au moins une pile électrique 3 qui est inerte avant activation et qui, après activation, délivre une charge électrique unitaire donnée. En particulier, les piles 3 utilisées sont primaires, c'est-à-dire non rechargeables, et délivrent leur charge unitaire de façon totalement autonome après activation. The emergency battery 1 comprises a casing 2 in which is packaged a pack comprising at least one electric battery 3 which is inert before activation and which, after activation, delivers a given unit electric charge. In particular, the batteries 3 used are primary, that is to say non-rechargeable, and deliver their unit charge completely independently after activation.
Selon une réalisation avantageuse, le pack comprend au moins une pile thermique 3 formée de cellules élémentaires comprenant chacune une pastille de chauffe, une cathode, un électrolyte à l’état solide en l’absence de chauffe et une anode. La principale qualité de ce type de pile 3 est le maintien de sa charge unitaire, sans maintenance, pendant plusieurs années. According to an advantageous embodiment, the pack comprises at least one thermal cell 3 formed of elementary cells each comprising a heating pad, a cathode, an electrolyte in the solid state in the absence of heating and an anode. The main quality of this type of battery 3 is the maintenance of its unit charge, without maintenance, for several years.
En particulier, l’ensemble des cellules reste inerte pendant la période de stockage et, après activation thermique, la charge unitaire est délivrée de façon autonome. En outre, le voltage de la pile 3 peut facilement être modulé en fonction du nombre de cellules empilées, et sa puissance en fonction de la dimension desdites cellules. In particular, all the cells remain inert during the storage period and, after thermal activation, the unit charge is delivered autonomously. Furthermore, the voltage of the battery 3 can easily be modulated according to the number of stacked cells, and its power according to the size of said cells.
Les cellules peuvent être réalisées par compression de poudre, une piste électrique reliant les pastilles de chauffe à deux bornes d’activation situées à l’extérieur de la pile 3. Le boîtier 2 intègre des moyens d’activation qui permettent l’envoi d’un courant de chauffe aux bornes d’activation de la pile 3, ledit courant induisant une élévation de température des pastilles chauffantes des différentes cellules jusqu’à une température de fonte de l’électrolyte. The cells can be produced by powder compression, an electrical track connecting the heating pads to two activation terminals located outside the battery 3. The box 2 incorporates activation means which allow the sending of a heating current at the activation terminals of cell 3, said current inducing a rise in temperature of the heating pads of the various cells to a melting temperature of the electrolyte.
La pile 3 ainsi amorcée délivre alors sa charge unitaire entre l’anode et la cathode jusqu’à sa décharge complète sans nécessiter d’intervention extérieure, notamment en ce que celle-ci chauffe durant sa décharge. Le boîtier 2 de la batterie de secours 1 intègre également un dispositif de connexion 5 du pack de piles 3 à un système de type BMS de la batterie d’alimentation électrique du moteur d’un véhicule automobile, ledit système contrôlant le fonctionnement de la batterie du véhicule et notamment au moins le niveau de charge de ladite batterie. The cell 3 thus primed then delivers its unit charge between the anode and the cathode until it is completely discharged without requiring external intervention, in particular in that it heats up during its discharge. The box 2 of the emergency battery 1 also incorporates a device 5 for connecting the battery pack 3 to a BMS-type system of the electric power supply battery of the engine of a motor vehicle, said system controlling the operation of the battery of the vehicle and in particular at least the charge level of said battery.
En relation avec la figure 2, le dispositif de connexion comprend un connecteur 6 compatible avec le système de type BMS, ledit connecteur étant porté par un câble 7 saillant du boîtier 2 et/ou intégré dans le boîtier 2, un câble de connexion 8 étant alors fourni. In relation to FIG. 2, the connection device comprises a connector 6 compatible with the BMS type system, said connector being carried by a cable 7 projecting from the casing 2 and/or integrated into the casing 2, a connection cable 8 being then provided.
En particulier, le connecteur 6 est relié à un module 9 de communication et d’activation de chacune des piles 3, ledit module comprenant notamment les moyens d’activation desdites piles, chacune desdites piles étant reliée audit module par un câble de puissance 10. Selon une autre réalisation, le module 9 peut être intégré au système de type BMS du véhicule. In particular, the connector 6 is connected to a module 9 for communication and activation of each of the batteries 3, said module comprising in particular the means for activating said batteries, each of said batteries being connected to said module by a power cable 10. According to another embodiment, the module 9 can be integrated into the BMS type system of the vehicle.
Le procédé de charge prévoit, après connexion du pack de piles 3 de la batterie de secours 1 à la batterie du véhicule, de mettre en communication le module 9 avec le système de type BMS et d’interroger ledit système de type BMS pour, en fonction d’un critère d’acceptabilité de la charge unitaire au regard du niveau de charge donné par ledit système, activer ou non une pile électrique 3. The charging method provides, after connection of the battery pack 3 of the emergency battery 1 to the battery of the vehicle, to put the module 9 in communication with the BMS type system and to interrogate said BMS type system to, in depending on a criterion of acceptability of the unit load with regard to the level of charge given by said system, activate or not an electric battery 3.
En particulier, les moyens d’activation permettent l’envoi d’un courant de chauffe d’une pile thermique 3 en fonction d’un critère d’acceptabilité de la charge unitaire de ladite pile au regard du niveau de charge donné par le système de type BMS. In particular, the activation means allow the sending of a heating current from a thermal battery 3 according to a criterion of acceptability of the unit charge of said battery with regard to the level of charge given by the system. BMS type.
Ainsi, la décharge de la charge unitaire d’une pile 3 activée dans la batterie du véhicule n’est réalisée que dans la mesure où ladite charge est considérée comme acceptable pour ladite batterie en fonction des informations fournies par le système de type BMS. En particulier, un tel procédé permet de réaliser la charge de la batterie du véhicule en toute sécurité, notamment dans la mesure où ladite charge peut être réalisée par un utilisateur du véhicule qui, outre le stress lié à l’éventuelle situation de panne, n’est pas familier avec ce type d’intervention. Thus, the discharge of the unit charge of a battery 3 activated in the battery of the vehicle is carried out only insofar as said charge is considered acceptable for said battery according to the information provided by the BMS type system. In particular, such a method makes it possible to carry out the charging of the battery of the vehicle in complete safety, in particular insofar as said charging can be carried out by a user of the vehicle who, in addition to the stress linked to the possible breakdown situation, n am not familiar with this type of intervention.
En outre, la décharge après activation étant autonome, il convient de fiabiliser les vérifications préalables, surtout dans le cas de piles thermiques 3 dont la température de fonctionnement peut augmenter de façon dangereuse en cas d’anomalie dans l’acceptation de la charge par la batterie du véhicule. In addition, the discharge after activation being autonomous, it is advisable to make the preliminary checks more reliable, especially in the case of thermal batteries 3 whose operating temperature can increase in a dangerous way in the event of an anomaly in the acceptance of the charge by the vehicle battery.
En particulier, le critère d’acceptabilité comprend un niveau de charge maximale de la batterie du véhicule avant la charge, la pile 3 étant activée si la somme de sa charge unitaire et de la charge donnée par le système de type BMS est inférieure à au plus 80% de la charge maximale de la batterie. Selon une réalisation, le niveau de charge maximale de la batterie du véhicule peut être de 5 kWh pour pouvoir accepter la charge de la batterie de secours 1 . In particular, the acceptability criterion comprises a maximum charge level of the vehicle battery before charging, the battery 3 being activated if the sum of its unit charge and of the charge given by the BMS type system is less than at more than 80% of the maximum battery charge. According to one embodiment, the maximum charge level of the battery of the vehicle can be 5 kWh in order to be able to accept the charge of the emergency battery 1 .
Ainsi, on s’assure que la charge unitaire peut être acceptée par la batterie du véhicule, notamment pour éviter le cas où l’utilisateur utiliserait la batterie de secours 1 pour une autre panne que celle relative à la décharge de la batterie de son véhicule. Thus, it is ensured that the unit load can be accepted by the battery of the vehicle, in particular to avoid the case where the user would use the emergency battery 1 for a breakdown other than that relating to the discharge of the battery of his vehicle. .
Selon une réalisation, la charge électrique unitaire d’une pile 3 est inférieure à 20% à la charge maximale de la batterie du véhicule. Ainsi, la batterie de secours 1 peut être utilisée en cas de panne électrique juste pour retrouver une autonomie suffisante pour rallier la borne de recharge la plus proche. En outre, la batterie de secours 1 permet de sortir l’utilisateur d’une situation de danger si sa panne se passe hors de toute infrastructure ou dans un lieu dangereux. According to one embodiment, the unit electrical charge of a cell 3 is less than 20% of the maximum charge of the vehicle battery. Thus, the backup battery 1 can be used in the event of a power failure just to regain sufficient autonomy to reach the nearest charging station. In addition, the backup battery 1 allows the user to get out of a dangerous situation if his breakdown occurs outside any infrastructure or in a dangerous place.
De façon avantageuse, le pack comprend plusieurs piles électriques 3, le procédé de charge prévoyant d’activer un nombre de piles 3 en fonction du niveau de charge donné par le système de type BMS. Ainsi, il est possible d’ajuster la charge au besoin de la batterie du véhicule, l’activation des piles 3 pouvant être réalisée simultanément ou de manière séquencée en fonction de la situation. En outre, le pack peut comprendre des piles électriques 3 de capacité différente, notamment correspondant chacune à une autonomie donnée, et/ou basée sur une technologie d’activation différente. Advantageously, the pack comprises several electric batteries 3, the charging method providing for activating a number of batteries 3 according to the level of charge given by the BMS type system. Thus, it is possible to adjust the load of the vehicle battery as needed, the activation of the 3 batteries which can be carried out simultaneously or in sequence depending on the situation. In addition, the pack can comprise electric batteries 3 of different capacity, in particular each corresponding to a given autonomy, and/or based on a different activation technology.
Selon une réalisation, le nombre de piles 3 activées est déterminé par le module d’activation 9. En variante, le nombre de piles 3 activées est déterminé en fonction d’une instruction donnée par l’utilisateur, notamment au regard de l’autonomie dont il a besoin avant la prochaine charge. According to one embodiment, the number of batteries 3 activated is determined by the activation module 9. Alternatively, the number of batteries 3 activated is determined according to an instruction given by the user, in particular with regard to autonomy it needs before the next charge.
Le procédé prévoit l’interrogation du système de type BMS sur au moins un autre paramètre de la batterie du véhicule, parmi notamment l’état de santé de ladite batterie et sa température, l’activation de la pile 3 étant également conditionnée par un critère d’acceptabilité relatif audit paramètre. En particulier, l’état de santé de la batterie du véhicule doit être validé pour pouvoir accepter une charge rapide. The method provides for the interrogation of the BMS type system on at least one other parameter of the battery of the vehicle, among in particular the state of health of said battery and its temperature, the activation of the battery 3 also being conditioned by a criterion of acceptability relating to said parameter. In particular, the state of health of the vehicle battery must be validated in order to be able to accept a fast charge.
Par ailleurs, toujours pour sécuriser l’activation de la batterie de secours 1 , l’activation de la pile 3 peut également être conditionnée par : Furthermore, still to secure the activation of the backup battery 1 , the activation of the battery 3 can also be conditioned by:
- l’acceptabilité d’au moins un critère environnemental de la batterie du véhicule, parmi notamment la température extérieure et l’hygrométrie, par exemple au regard de l’acceptabilité d’une charge rapide de la batterie du véhicule, d’une plage de température de fonctionnement et d’une hygrométrie compatible pour un usage extérieur ; - the acceptability of at least one environmental criterion of the battery of the vehicle, among in particular the outside temperature and the humidity, for example with regard to the acceptability of a rapid charge of the battery of the vehicle, of a range operating temperature and humidity compatible for outdoor use;
- l’acceptabilité d’au moins un critère relatif au pack de piles 3, parmi notamment la présence d’une pile 3 activable, l’état de santé de ladite pile et la mise à la terre de ladite pile, par exemple par vérification d’une tension minimale aux bornes d’un fusible de chacune des piles 3 et de la présence d’un courant de fuite ; - the acceptability of at least one criterion relating to the battery pack 3, among in particular the presence of an activatable battery 3, the state of health of said battery and the grounding of said battery, for example by verification a minimum voltage at the terminals of a fuse of each of the batteries 3 and the presence of a leakage current;
- l’acceptabilité d’au moins un critère relatif au véhicule automobile, notamment relatif à la mise à l’arrêt dudit véhicule, par exemple par vérification de la vitesse nulle du véhicule, du serrage du frein à main ou de l’enclenchement de la position P d’une boite de vitesses automatique. Selon une réalisation avantageuse, le procédé de charge prévoit une communication à l’utilisateur d’informations relatives au déroulement de ladite charge, notamment par l’intermédiaire d’un dispositif visuel et/ou audio dédié, et/ou par l’intermédiaire d’une communication à distance sur un dispositif détenu par ledit utilisateur. - the acceptability of at least one criterion relating to the motor vehicle, in particular relating to the stopping of said vehicle, for example by checking the zero speed of the vehicle, the application of the handbrake or the engagement of the position P of an automatic gearbox. According to an advantageous embodiment, the charging method provides communication to the user of information relating to the progress of said charging, in particular by means of a dedicated visual and/or audio device, and/or by means of remote communication on a device owned by said user.
En particulier, le module 9 de communication et d’activation peut comprendre des indicateurs lumineux 1 1 et/ou des moyens de communication, notamment Bluetooth, avec une application dédiée installée sur le smartphone de l’utilisateur. Cette dernière réalisation permet à l’utilisateur de s’éloigner du véhicule lors de la charge, notamment pour se mettre dans une zone de sécurité dans l’attente de pouvoir repartir. In particular, the communication and activation module 9 may include luminous indicators 11 and/or means of communication, in particular Bluetooth, with a dedicated application installed on the user's smartphone. This last achievement allows the user to move away from the vehicle during charging, in particular to put themselves in a safety zone while waiting to be able to leave.
Pour des raisons de sécurité, le boîtier 2 de la batterie de secours 1 intègre un dispositif de fuite 12 de la décharge d’au moins une pile 3, le procédé prévoyant de surveiller la décharge de la charge unitaire d’une pile 3 activée dans la batterie du véhicule et, en cas d’anomalie, de connecter le dispositif de fuite 12 de ladite décharge pour interrompre la charge de ladite batterie. For safety reasons, the case 2 of the emergency battery 1 incorporates a device 12 for leaking the discharge of at least one battery 3, the method providing for monitoring the discharge of the unit charge of a battery 3 activated in the vehicle battery and, in the event of an anomaly, to connect the leakage device 12 of said discharge to interrupt the charging of said battery.
En relation avec la figure 1 , un mode de réalisation du procédé de charge prévoit, après mise sous tension (A) et connexion du module 9 de la batterie de secours 1 au système de type BMS (B), l’interrogation dudit système sur les critères d’acceptabilité de la charge (C). In relation to FIG. 1, an embodiment of the charging method provides, after powering up (A) and connection of the module 9 of the backup battery 1 to the BMS type system (B), the interrogation of said system on the load acceptability criteria (C).
Après vérification de la communication (D) et du dispositif de fuite 12 (E), au moins une pile 3 est activée (F). Le procédé prévoit ensuite : After checking the communication (D) and the leakage device 12 (E), at least one battery 3 is activated (F). The process then provides:
- de contrôler la décharge de la pile 3 (G) et, en cas d’anomalie, de connecter le dispositif de fuite 12 ; - check the discharge of battery 3 (G) and, in the event of an anomaly, connect the leak device 12;
- de contrôler la charge de la batterie du véhicule (H) et la décharge complète de la pile 3 (I) pour pouvoir connecter le dispositif de fuite 12 en cas de surplus. Enfin, après le contrôle de la décharge complète de la charge unitaire de la pile 3, le procédé permet la déconnexion du pack de piles 3 (J) puis la mise hors tension de la batterie de secours 1 (K). - to control the charge of the vehicle battery (H) and the complete discharge of the battery 3 (I) to be able to connect the leakage device 12 in the event of a surplus. Finally, after checking the complete discharge of the unit charge of the battery 3, the method allows the disconnection of the battery pack 3 (J) then the de-energization of the emergency battery 1 (K).
En relation avec les figures 2 et 3, le boîtier 2 présente une paroi cylindrique 13 de roulement pour son déplacement. Cette réalisation permet à l’utilisateur d’embarquer la batterie de secours 1 dans son véhicule, notamment en prévoyant une dimension du boîtier 2 qui est comparable à celle d’une roue de secours pour pouvoir être rangé à sa place, et de pouvoir facilement déplacer ladite batterie de secours en vue de son utilisation, et ce notamment malgré le poids important des piles 3. Selon une autre réalisation, la batterie de secours 1 peut être intégrée à demeure dans le véhicule en étant connectée au système de type BMS de la batterie. In relation to Figures 2 and 3, the housing 2 has a cylindrical wall 13 rolling for its movement. This embodiment allows the user to carry the emergency battery 1 in his vehicle, in particular by providing a dimension of the housing 2 which is comparable to that of a spare wheel in order to be able to be stored in its place, and to be able to easily move said backup battery for use, and this in particular despite the heavy weight of the batteries 3. According to another embodiment, the backup battery 1 can be permanently integrated into the vehicle by being connected to the BMS type system of the battery.
Selon une réalisation avantageuse, la paroi de roulement 13 est recouverte d’une bande de protection 14, par exemple en matériau élastomère, pour faciliter le déplacement de la batterie de secours 1 sans risquer d’endommager le boîtier 2 sur le sol. En particulier, la bande de protection forme une bande de roulement. Sur les figures 3, la bande de protection 14 du boîtier 2 est équipée d’un orifice 15 d’accès au dispositif de connexion 5. According to an advantageous embodiment, the rolling wall 13 is covered with a protective strip 14, for example of elastomeric material, to facilitate the movement of the emergency battery 1 without risking damaging the housing 2 on the ground. In particular, the protective strip forms a tread. In Figures 3, the protective strip 14 of the housing 2 is equipped with an orifice 15 for access to the connection device 5.
Selon une réalisation avantageuse, le boîtier 2 peut être équipé d’au moins une poignée de préhension 18, notamment pour faciliter son retrait du véhicule. According to an advantageous embodiment, the box 2 can be equipped with at least one gripping handle 18, in particular to facilitate its removal from the vehicle.
En relation avec les figures, le boîtier 2 est formé d’un corps 16 délimitant un espace de conditionnement ouvert qui est fermé par un capot 17, ledit capot étant monté de façon amovible sur le corps 16 pour permettre un accès à l’espace de conditionnement, notamment en vue de pouvoir remplacer les piles 3 et/ou de les recycler après activation. In relation to the figures, the box 2 is formed of a body 16 delimiting an open conditioning space which is closed by a cover 17, said cover being removably mounted on the body 16 to allow access to the storage space. conditioning, in particular with a view to being able to replace the batteries 3 and/or to recycle them after activation.
Le capot 17 est équipé d’un moyen de préhension facilitant son retrait du corps 16. Sur les figures 3, la poignée de préhension 18 est formée sur le capot 17, ledit capot étant monté sur l’ouverture supérieure du corps 16 qui présente un fond depuis lequel s’étend la paroi cylindrique 13 formant à l’intérieur d’elle l’espace de conditionnement. The cover 17 is equipped with a gripping means facilitating its removal from the body 16. In FIGS. 3, the gripping handle 18 is formed on the cover 17, said cover being mounted on the upper opening of the body 16 which has a bottom from which extends the cylindrical wall 13 forming inside it the packaging space.
Par ailleurs, notamment dans le cas de piles thermique 3, le boîtier 2 intègre également un dispositif de refroidissement du pack de piles 3, notamment sous la forme d’un support isolant 19 équipé d’un circuit de refroidissement 20. Furthermore, in particular in the case of thermal batteries 3, the housing 2 also incorporates a device for cooling the battery pack 3, in particular in the form of an insulating support 19 equipped with a cooling circuit 20.

Claims

REVENDICATIONS
1. Procédé de charge de la batterie d’alimentation électrique du moteur d’un véhicule automobile, ladite batterie étant gérée par un système de type BMS contrôlant au moins le niveau de charge de ladite batterie, ledit procédé prévoyant : 1. Method for charging the electric power supply battery of the engine of a motor vehicle, said battery being managed by a BMS type system controlling at least the level of charge of said battery, said method providing:
- de connecter à ladite batterie un pack comprenant au moins une pile électrique (3) qui est inerte avant activation et qui, après activation, délivre une charge électrique unitaire donnée, ledit pack étant équipé d’un module (9) de communication et d’activation de chacune des piles (3) ; - to connect to said battery a pack comprising at least one electric battery (3) which is inert before activation and which, after activation, delivers a given unit electrical charge, said pack being equipped with a communication module (9) and activation of each of the batteries (3);
- de mettre en communication ledit module avec le système de type BMS ;- To put said module in communication with the BMS type system;
- d’interroger ledit système de type BMS pour, en fonction d’un critère d’acceptabilité de la charge unitaire au regard du niveau de charge donné par ledit système, activer ou non une pile électrique (3) ; - to interrogate said BMS type system to, depending on a criterion of acceptability of the unit load with regard to the level of charge given by said system, activate or not an electric battery (3);
- de décharger la charge unitaire d’une pile (3) activée dans la batterie du véhicule. - discharge the unit charge of a cell (3) activated in the vehicle battery.
2. Procédé de charge selon la revendication 1 , caractérisé en ce que la charge électrique unitaire d’une pile (3) est inférieure à 20% à la charge maximale de la batterie du véhicule. 2. Charging method according to claim 1, characterized in that the unit electrical charge of a cell (3) is less than 20% of the maximum charge of the vehicle battery.
3. Procédé de charge selon l’une des revendications 1 ou 2, caractérisé en ce qu’il prévoit d’utiliser un pack comprenant plusieurs piles électriques (3), le procédé prévoyant d’activer un nombre de piles (3) en fonction du niveau de charge donné par le système de type BMS. 3. Charging method according to one of claims 1 or 2, characterized in that it provides for the use of a pack comprising several electric batteries (3), the method providing for activating a number of batteries (3) depending the level of charge given by the BMS type system.
4. Procédé de charge selon la revendication 3, caractérisé en ce que le nombre de piles (3) activées est déterminé en fonction d’une instruction donnée par l’utilisateur. 4. Charging method according to claim 3, characterized in that the number of batteries (3) activated is determined according to an instruction given by the user.
5. Procédé de charge selon l’une des revendications 3 ou 4, caractérisé en ce qu’il prévoit d’utiliser un pack comprenant des piles électriques (3) de capacité différente. 5. Charging method according to one of claims 3 or 4, characterized in that it provides for the use of a pack comprising electric batteries (3) of different capacity.
6. Procédé de charge selon l’une quelconque des revendications 1 à 5, caractérisé en ce que le critère d’acceptabilité comprend un niveau de charge maximale de la batterie du véhicule avant la charge, la pile (3) étant activée si la somme de sa charge unitaire et de la charge donnée par le système de type BMS est inférieure à au plus 80% de la charge maximale de la batterie du véhicule. 6. Charging method according to any one of claims 1 to 5, characterized in that the acceptability criterion comprises a maximum charge level of the vehicle battery before charging, the battery (3) being activated if the sum of its unit load and of the load given by the BMS type system is less than at most 80% of the maximum load of the vehicle battery.
7. Procédé de charge selon l’une quelconque des revendications 1 à 6, caractérisé en ce qu’il prévoit l’interrogation du système de type BMS sur au moins un autre paramètre de la batterie du véhicule, parmi notamment l’état de santé de ladite batterie et sa température, l’activation de la pile (3) étant également conditionnée par un critère d’acceptabilité relatif audit paramètre. 7. Charging method according to any one of claims 1 to 6, characterized in that it provides for the interrogation of the BMS type system on at least one other parameter of the battery of the vehicle, among in particular the state of health of said battery and its temperature, the activation of the battery (3) also being conditioned by an acceptability criterion relating to said parameter.
8. Procédé de charge selon l’une quelconque des revendications 1 à 7, caractérisé en ce que l’activation de la pile (3) est également conditionnée par l’acceptabilité d’au moins un critère environnemental de la batterie du véhicule, parmi notamment la température extérieure et l’hygrométrie. 8. Charging method according to any one of claims 1 to 7, characterized in that the activation of the battery (3) is also conditioned by the acceptability of at least one environmental criterion of the vehicle battery, among including outside temperature and humidity.
9. Procédé de charge selon l’une quelconque des revendications 1 à 8, caractérisé en ce que l’activation de la pile (3) est également conditionnée par l’acceptabilité d’au moins un critère relatif au pack de piles (3), parmi notamment la présence d’une pile (3) activable, l’état de santé de ladite pile et la mise à la terre de ladite pile. 9. Charging method according to any one of claims 1 to 8, characterized in that the activation of the battery (3) is also conditioned by the acceptability of at least one criterion relating to the battery pack (3) , among in particular the presence of an activatable battery (3), the state of health of said battery and the grounding of said battery.
10. Procédé de charge selon l’une quelconque des revendications 1 à 9, caractérisé en ce que l’activation de la pile (3) est également conditionnée par l’acceptabilité d’au moins un critère relatif au véhicule automobile, notamment relatif à la mise à l’arrêt dudit véhicule. 10. Charging method according to any one of claims 1 to 9, characterized in that the activation of the battery (3) is also conditioned by the acceptability of at least one criterion relating to the motor vehicle, in particular relating to stopping said vehicle.
11. Procédé de charge selon l’une quelconque des revendications 1 à 10, caractérisé en ce qu’il prévoit une communication à l’utilisateur d’informations relatives au déroulement de ladite charge, notamment par l’intermédiaire d’un dispositif visuel et/ou audio dédié, et/ou par l’intermédiaire d’une communication à distance sur un dispositif détenu par ledit utilisateur. 11. Charging method according to any one of claims 1 to 10, characterized in that it provides communication to the user of information relating to the progress of said charging, in particular via a dedicated visual and/or audio device, and/or via remote communication on a device owned by said user.
12. Procédé de charge selon l’une quelconque des revendications 1 à 1 1 , caractérisé en ce qu’il prévoit de surveiller la décharge de la charge unitaire d’une pile (3) activée dans la batterie du véhicule et, en cas d’anomalie, de connecter un dispositif de fuite (12) de ladite décharge pour interrompre la charge de ladite batterie. 12. Charging method according to any one of claims 1 to 1 1, characterized in that it provides for monitoring the discharge of the unit charge of a cell (3) activated in the vehicle battery and, in the event of anomaly, to connect a leakage device (12) of said discharge to interrupt the charging of said battery.
13. Procédé de charge selon l’une quelconque des revendications 1 à 12, caractérisé en ce qu’il prévoit un contrôle de la décharge complète de la charge unitaire avant de permettre la déconnexion du pack de piles (3). 13. Charging method according to any one of claims 1 to 12, characterized in that it provides for a control of the complete discharge of the unit charge before allowing the disconnection of the battery pack (3).
14. Procédé de charge selon l’une quelconque des revendications 1 à 13, caractérisé en ce qu’il prévoit d’utiliser un pack comprenant au moins une pile thermique (3), l’activation de ladite pile comprenant l’envoi d’un courant de chauffe délivrant la charge unitaire. 14. Charging method according to any one of claims 1 to 13, characterized in that it provides for the use of a pack comprising at least one thermal battery (3), the activation of said battery comprising sending a heating current delivering the unit charge.
15. Batterie de secours (1 ) pour la mise en oeuvre d’un procédé de charge selon l’une quelconque des revendications 1 à 14, ladite batterie de secours comprenant un boîtier (2) dans lequel est conditionné un pack comprenant au moins une pile électrique (3) qui est inerte avant activation et qui, après activation, délivre une charge électrique unitaire donnée, ledit boîtier intégrant également un dispositif de connexion (5) du pack de piles (3) à un système de type BMS de la batterie d’alimentation électrique du moteur d’un véhicule automobile et un module (9) de communication et d’activation de chacune des piles (3), ledit module comprenant des moyens d’activation d’au moins une pile (3) en fonction d’un critère d’acceptabilité de la charge unitaire au regard du niveau de charge donné par le système de type BMS. 15. Backup battery (1) for implementing a charging method according to any one of claims 1 to 14, said backup battery comprising a housing (2) in which is packaged a pack comprising at least one electric battery (3) which is inert before activation and which, after activation, delivers a given unit electric charge, said box also integrating a connection device (5) of the battery pack (3) to a BMS type system of the battery power supply of the engine of a motor vehicle and a module (9) for communicating and activating each of the batteries (3), the said module comprising means for activating at least one battery (3) depending a criterion of acceptability of the unit load with regard to the level of load given by the BMS type system.
PCT/EP2021/078839 2020-10-21 2021-10-18 Method for charging the electric power supply battery of the engine of a motor vehicle WO2022084262A1 (en)

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FR2010803A FR3115242A1 (en) 2020-10-21 2020-10-21 Method of charging the electric power supply battery of the engine of a motor vehicle

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WO2018138424A1 (en) * 2017-01-24 2018-08-02 Pellenc Land-based utility vehicle with electrical propulsion and multiple power sources
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