EP4387861A1 - Control of the use of switches for coupling an electrical energy source of a vehicle to an electrical supply system - Google Patents
Control of the use of switches for coupling an electrical energy source of a vehicle to an electrical supply systemInfo
- Publication number
- EP4387861A1 EP4387861A1 EP22744238.1A EP22744238A EP4387861A1 EP 4387861 A1 EP4387861 A1 EP 4387861A1 EP 22744238 A EP22744238 A EP 22744238A EP 4387861 A1 EP4387861 A1 EP 4387861A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switches
- vehicle
- source
- power supply
- supply network
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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Classifications
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- 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
- B60L3/04—Cutting off the power supply under fault conditions
-
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/002—Monitoring or fail-safe circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
- G01R31/007—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks using microprocessors or computers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
- H01H2071/044—Monitoring, detection or measuring systems to establish the end of life of the switching device, can also contain other on-line monitoring systems, e.g. for detecting mechanical failures
Definitions
- TITLE CONTROL OF THE USE OF SWITCHES FOR COUPLING A VEHICLE ELECTRIC POWER SOURCE TO A POWER SUPPLY NETWORK
- the invention relates to vehicles comprising a source of electrical energy responsible for supplying an electrical supply network, and more specifically the control of the use of switches ensuring the coupling/decoupling of the source to the electrical supply network in such vehicles.
- Certain vehicles possibly of the automobile type, comprise a source of electrical energy responsible for supplying electrical current to an electrical power supply network.
- this power supply network can supply, in particular, an on-board network and at least one electric motor machine of the powertrain (or GMP) of its vehicle.
- the source of electrical energy may, for example, be a fuel cell or a rechargeable battery (known as “main” and sometimes called “traction battery”) which can be recharged by an on-board battery charger when the latter has been coupled to an alternating current power source, such as for example a charging station, a wall box 5 (or “wallbox”) or a wall socket, via a charging cable.
- the nominal (i.e. normal) input voltage is approximately 220 V and the output voltage is about 450 V (in this case it is said to be medium voltage).
- the term "on-board network” means a sub-part of the electrical supply network which includes electrical (or electronic) equipment (or components) consuming electrical energy and being "non-priority(s)" or "safe(s)” (and therefore priority(ies) ).
- the voltage within the on-board network can
- the source of electrical energy When the source of electrical energy is of the low or medium voltage type (typically between 350 V and 600 V), it can supply very high direct currents (or DC (“Direct Current”)), which can be prove to be dangerous for the users of a vehicle, in particular when a short circuit occurs or during a charging phase. There is a risk of electrocution and/or burns. In order to limit this risk, it has been proposed to equip vehicles with switches (or circuit breakers) which are capable of assuming a closed state in which they couple the source of electrical energy5 to the electrical power supply network and a state open in which they decouple the source of electrical energy from the electrical supply network in order to isolate it.
- switches or circuit breakers
- the closed state is authorized when the vehicle is in a rolling phase or in a phase of recharging the source of electrical energy, and throughout the duration of the placing of the switches in the closed state, one permanently realizes in the vehicle monitoring of decoupling (or insulation) faults to avoid any risk of electrocution.
- These switches have a lifetime which depends at least on the number of times they are activated, i.e. when they are subject to a transition from the open state to the closed state or from the closed state to the open state. They are therefore designed to be activated a very high average number of times, typically between 80,000 and 200,000. have a high probability of no longer being able to be activated and therefore of remaining in the open state which prohibits the rolling of the vehicle0 or in the closed state which prevents the decoupling (or isolation) of the source of electrical energy.
- the aim of the invention is therefore in particular to improve the situation.
- a control method intended to be implemented in a vehicle comprising a source of electrical energy, an electrical power supply network, and switches capable of assuming closed and open states in which they respectively couple and decouple the source to/from the power supply network.
- This control method is characterized in that it comprises a step in which a value of a counter is incremented by a chosen number each time the switches have been placed in at least one of the closed state and open state. , and, when the value of this counter is greater than a first threshold, a user of the vehicle is alerted of a need to check the latter in an after-sales service.
- control method according to the invention may comprise other characteristics which may be taken separately or in combination, and in particular: 0 - in its step, the value of the counter can be incremented by a chosen number each time the switches have been placed in the closed state or in the open state;
- the first threshold can be between 148000 and 248000;
- the first threshold can be between 148000 and 248000;
- the second threshold can be between 150000 and 250000;
- the value of the counter can be incremented by a number which is chosen according to a value of a current supplied by the source to the power supply network after placing the switches in the closed or just state before placing the switches in the open state;
- the number of increments can be chosen from among N numbers associated respectively with N successive intervals of current values supplied, with N > 3.
- the invention also proposes a computer program product comprising5 a set of instructions which, when it is executed by processing means, is capable of implementing a control method of the type of that presented above for controlling , in a vehicle comprising a source of electrical energy, an electrical power supply network, and switches capable of assuming closed and open states in which they respectively couple and decouple the source to/from the electrical power supply network, the number placement of the switches in at least one of the closed state and the open state.
- the invention also proposes a control device intended to equip a vehicle comprising a source of electrical energy, an electrical power supply network, and switches capable of assuming closed and open states5 in which respectively they couple and decouple the source to the /from the power supply network.
- This control device is characterized in that it comprises at least one processor and at least one memory arranged to perform the operations consisting in incrementing a value of a counter by a chosen number each time the switches have been placed in at least one of the closed state and open state, and, when the value of this counter is greater than a first threshold, to trigger an alert for a user of the vehicle of a need to check the latter in an after service -sale.
- the invention also proposes a vehicle, possibly of the automotive type, and comprising a source of electrical energy, an electrical power supply network, switches capable of taking closed and open states in which they respectively couple and decouple the source
- FIG. 1 schematically and functionally illustrates an embodiment of a vehicle comprising a GMP, with an electric drive machine powered by a main rechargeable battery, and a control device according to the invention
- FIG. 2 schematically illustrates an example of an algorithm implementing a control method according to the invention
- FIG. 3 schematically and functionally illustrates an embodiment of a computer of a management box comprising a control device according to the invention.
- the object of the invention is in particular to propose a control method, and an associated DC control device, intended to allow the control (or monitoring) of the number of uses of the switches (or circuit breakers) 5 DC which are charged , within a vehicle V with electric power source SE and electric power supply network RA, to couple/decouple the source SE to/from the electric power supply network RA.
- the vehicle V is of the automobile type. This is for example a car, as illustrated in FIG. 1. But the invention is not limited to this type of vehicle. It relates in fact to any type of vehicle comprising a source of electrical energy that must supply an electrical power supply network (at least during the driving phases and the recharging phases). Thus, it concerns, by example, land vehicles (utility vehicles, motorhomes, minibuses, cars, trucks, motorcycles, road construction machinery, construction machinery, agricultural machinery, leisure machinery (snowmobile, go-kart), and caterpillar machinery, for example), boats and aircraft.
- land vehicles utility vehicles, motorhomes, minibuses, cars, trucks, motorcycles, road construction machinery, construction machinery, agricultural machinery, leisure machinery (snowmobile, go-kart), and caterpillar machinery, for example
- the vehicle V comprises a powertrain (or GMP) of the all-electric type (and therefore whose traction is ensured exclusively by at least one driving machine electric MS).
- GMP powertrain
- the GMP could be of the hybrid type (thermal and electric).
- the source SE of electrical energy is a rechargeable battery (called “main”).
- this main battery SE comprises at least two electrical energy storage modules each comprising at least one electrochemical electrical energy storage cell, 5 optionally of lithium-ion (or Li-ion) or Ni-Mh or still lead.
- the invention is not limited to this type of electrical energy source.
- it also relates to fuel cells, for example.
- FIG. 1 There is schematically represented in FIG. 1 a vehicle V comprising an electric GMP transmission chain, an electric power supply network RA, switches (or circuit breakers) CC, and a control device DC according to the invention.
- the transmission chain has a GMP which is, here, purely electrical and therefore which comprises, in particular, an electric driving machine MME, an AM motor shaft, a source SE of electrical energy (here a rechargeable main battery5) and a shaft of AT transmission.
- an electric driving machine MME an electric driving machine
- AM motor shaft an AM motor shaft
- source SE of electrical energy here a rechargeable main battery5
- shaft of AT transmission a shaft of AT transmission.
- electric drive machine means an electric machine arranged so as to supply or recover torque to move the vehicle V.
- the driving machine MME (here an electric motor) is coupled to the source SE, in order to be supplied with electrical energy, as well as possibly to supply this source SE with electrical energy. It is coupled to the motor shaft AM, to provide it with torque by rotational drive.
- This motor shaft AM is here coupled to a reducer RD which is also coupled to the transmission shaft AT, itself coupled to a first train T1 (here of wheels), of preferably via a D1 differential.
- This first train T1 is here located in the front part PW of the vehicle V. But in a variant this first train T 1 could be the one which is here referenced T2 and which is located in the rear part PRV of the vehicle V.
- the source SE (here a main battery) can be of the low voltage type (typically 450 V for illustrative purposes). But it could be medium voltage or high voltage.
- the source SE When the source SE is a main battery, it can be recharged via a battery charger connected to a charging connector fitted to the vehicle V in a part of its bodywork and to which is connected a charging cable also connected (temporarily or permanently ) to an alternating current power source, during a charging phase.
- This source (of alternating current power supply) can be, for example, a charging station, a wall box (or wallbox) or a wall socket5.
- the source SE is a main battery, it is responsible for supplying electrical energy to a converter CV so that it converts it into electrical energy that can be used by an on-board network RB forming part of the network of RA power supply.
- This CV converter can also be used to recharge an SE source constituting a main (or traction) battery, except in the case of so-called “mode 4” charging.
- the main battery SE can be recharged directly by a terminal adapted to mode 4 and supplying direct current (or DC) directly to the main battery SE5 without using the converter CV.
- the on-board network RB is an electrical power supply network which includes electrical (or electronic) equipment (or components) which consume electrical energy (generally of the very low voltage type (typically 12 V, 24 V or 48 V) ).
- the switches (or circuit breakers) CC are installed between the source SE (here a main battery) and the electrical power supply network RA (and in particular the converter CV and the electric motor machine MME). These switches CC are capable of adopting a closed state in which they couple the source SE to the power supply network RA and an open state in which they decouple the source SE from the power supply network RA in order to isolate it. The closed state is allowed when the vehicle V is in a phase
- the management of the source SE can, as illustrated in FIG. 1, be ensured by a management unit BG (sometimes called BMS (“Battery Management System”).
- This management unit BG comprises a computer CB which is in particular responsible for send commands to the DC switches intended to place them in the open state or the closed state according to the needs of the moment.
- the vehicle V can also comprise a service battery BS responsible for supplying electrical energy to the on-board network RB, in addition to that supplied by the converter CV (powered by source SE).
- this service battery BS can be arranged in the form of a very low voltage type battery (typically 12 V, 24 V or 48 V). It is rechargeable at least by the CV converter. It is considered in what follows, by way of non-limiting example, that the service battery BS is of the 12 V Lithium-ion type.
- a distribution box BD to which the service battery BS, the converter CV and the on-board network RB are coupled. This distribution box BD is responsible for distributing in the on-board network RB the electrical energy stored in the service battery BS ou5 produced by the converter CV, for supplying the electrical components (or equipment) according to requests for power received.
- the invention proposes in particular a control method intended to allow the control of the number of uses of the switches CC within the vehicle V. 0
- This method (of control) can be implemented at least partially by the DC control device (illustrated in Figures 1 and 3) which comprises for this purpose at least one processor PR1, for example digital signal (or DSP ("Digital Signal Processor")), and at least one memory MD.
- This device of DC control can therefore be implemented in the form of a combination of electrical or electronic circuits or components (or “hardware”) and software modules (or “software”).
- the MD memory is RAM in order to store instructions for the implementation
- the processor PR1 can comprise integrated (or printed) circuits, or else several integrated (or printed) circuits connected by wired or wireless connections.
- integrated (or printed) circuit is meant any type of device capable of performing at least one electrical or electronic operation.
- control device DC is part of the computer CB of the management box BG which manages the source SE. But this is not mandatory. Indeed, the control device DC could comprise its own dedicated computer, which is then coupled to the computer CB. 5
- the method (of control) comprises at least one control step 10-50 which is implemented as soon as the vehicle V has been fully assembled, and therefore ready to be used.
- step 10-50 one (the control device DC) increments in a0 sub-step 10 the value vc of a counter by a number ni chosen each time the switches CC have been placed in at least one of the closed state and open state. For example, it is the computer CB of the management box BG which can inform the control device DC of each placement of the switches CC in at least one of the closed and open states. 5 Then, when the value vc of the counter is greater than a first threshold s1 one (the control device DC) can, in a sub-step 40 of step 10-50, alert a user of the vehicle V of a need verification of the latter (V) in an after-sales service.
- step 10-500 can comprise a sub-step 20 in which one (the control device DC) compares the value vc of the counter with the first threshold s1 after each incrementation of the counter of the number of increments ni chosen (in a sub-step 10). It will be understood that each time the value vc of the counter remains lower than the first threshold s1 , the control process is temporarily interrupted (or put on hold (or "standby"), until the switches CC are placed again in one of the less of the closed state and the open state, and in this case the sub-step 10 is repeated.
- the control device DC compares the value vc of the counter with the first threshold s1 after each incrementation of the counter of the number of increments ni chosen
- the processor PR1 and memory MD of the control device DC which are arranged to perform the operations consisting in incrementing the value vc of the counter by a number of increments ni chosen each time the switches CC have been placed in at least one of the closed state and open state, and, when the value vc of the counter is greater than the first threshold s1, to trigger the alert of a user of the vehicle V of a need to verify the latter (V) in an after-sales service.
- the purpose of this alert is to encourage the user to quickly bring his vehicle V to an after-sales service in order to determine the origin of the alert.
- the alert can be given by display of a general service warning light or one dedicated to the source SE, possibly in a red color, or of a general or dedicated text alert message on a screen of the vehicle V, such as by example that of the dashboard or that of the central handset, and/or by broadcasting a dedicated sound (or audio) alert message via at least one loudspeaker present in the vehicle V.
- the display of an alert continues as long as the vehicle V has not been inspected by an after-sales service.
- a technician consults the fault log of the vehicle V, he can immediately understand that the problem comes from the exceeding of the first threshold s1 of the counter of activations of the switches CC.
- step 10-50 one (the control device DC) can increment the value vc of the counter by a chosen number ni each time the switches CC have been placed in the closed state or in the state open.
- each placement in the closed state is incremented by a number ni chosen and each placement in the open state is incremented by a number ni chosen (possibly different from that of the previous placement, as will see later). But in a variant embodiment, one could proceed to an incrementation of a number ni chosen only at each placement in the open state. In another variant embodiment, it would be possible to increment a number ni chosen only at each placement in the closed state.
- the first threshold s1 can be between 148000 and 248000. It will be understood that the value of the first threshold s1 is chosen5 according to the average number of activations that the switches CC are supposed to be able to support in theory. By way of example, when the average number of activations is equal to 150000, it is possible, for example, to use a first threshold s1 equal to 148000, when the average number of activations is equal to 200000, it is possible, for example , use a first threshold s1 equal to 198000, and0 when the average number of activations is equal to 250000, it is possible, for example, to use a first threshold s1 equal to 248000.
- step 10-50 when the value vc of the counter is greater than a second threshold s2, which is greater than the first threshold s1, one (the control device DC) can in a sub-step 50 impose a placement5 of the switches CC in the open state in order to prohibit the supply of the power supply network RA by the source SE. It is considered that the risk of impossibility of activating the switches CC has become much too great (vc > s2) given the average number of activations that the latter (CC) are supposed to be able to support in theory, and therefore on0 definitively prevents the supply of the power supply network RA by the source SE.
- the second threshold s2 can, for example, be chosen substantially equal to the average number of activations that the switches CC are supposed to be able to withstand in theone.
- the second threshold s2 can be between 150,000 and 250,000.
- the average number of activations is equal to 150,000
- step 10-50 can comprise a sub-step 40 in which, when the value vc of the counter is greater than the first threshold s1 in sub-step 20, one (the control device DC) compares this value vc of the counter with the second threshold s2. It will be understood that each time the value vc of the counter remains below the second threshold s2, the user of the vehicle V is alerted in sub-step 40, then temporarily interrupted (or put on hold (or "standby")) the control method, until the switches CC are the subject of a new placement in at least one of the closed state and the open state, and in this case the sub-step 10 is repeated. On the other hand, when the value vc of the counter is greater than the second threshold s2 (vc>s2), the supply of the electrical supply network RA0 by the source SE is definitively prevented.
- the source SE in addition to the definitive prevention of the supply of the electric power supply network RA by the source SE, it is also possible to trigger in the vehicle V an alarm signaling to at least one user of the vehicle V a problem preventing rolling of the vehicle V and therefore imperatively requiring the intervention of a repairman.
- the alarm can take place by displaying a general or dedicated service warning light for the source SE, possibly in red, or a general or dedicated textual alarm message on a screen of the vehicle V, such as that of the dashboard or that of the central instrument panel, and/or by
- the display of an alarm continues as long as the vehicle V has not been inspected in after-sales service.
- one can increment the value vc of the counter by a number of increments ni which is chosen according to the value of the current which is supplied by the source SE to the power supply network RA after placing the switches CC in the closed state or just before placing the switches CC in the open state.
- This option is intended to take into account the fact that the higher the current flowing through the DC switches, the more the wear of the latter (CC) is accelerated, and therefore the more their lifetime will be reduced. Consequently, in order to take this variable wear into account, the number of increments ni is chosen according to the current flowing through the switches CC at the time considered. 0
- the number of increments ni can be chosen from among N numbers associated respectively with N successive intervals of current values supplied, with N > 3.
- N can be equal to seven (7), and in this case:
- the value vc of the counter can be incremented by 6667 (i.e.
- deletion of the display in the vehicle V of the alert triggered in the event of exceeding the first threshold s1 but not of the possible second threshold s2 can be done in an after-sales service after replacement of at least the DC switches and reset to zero of the counter, or alternatively, in the absence of replacement of the DC switches, by means of a reset (at least partial) of the counter (at the discretion5 of the technician carrying out the inspection of the vehicle V).
- a reset at least partial
- the computer CB (or the computer dedicated to the control device DC) can also include a mass memory MM1, in particular for the temporary storage of any values of the current supplied by the source SE to the power supply network RA during an activation, and any intermediate data involved in all its calculations and processing.
- this computer CB (or the dedicated computer of the control device DC) can also comprise an input interface IE for receiving at least the values of the current supplied, possibly after having formatted them 5 and/or demodulated and/or amplified, in a manner known per se, by means of a digital signal processor PR2.
- this computer CB (or the dedicated computer of the DC control device) can also include an IS output interface, in particular for issuing alert triggering orders (and possibly fault code storage) or prohibition 0 supply of the power supply network RA by the source SE.
- the invention also proposes a computer program product (or computer program) comprising a set of instructions which, when it is executed by processing means of the electronic circuit (or hardware) type, such as for example the processor PR1, is capable of implementing the control method described above to control, in the vehicle V, the number of placements of the switches CC in at least one of their closed state and open state.
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- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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Abstract
A control method is implemented in a vehicle comprising an electrical energy source, an electrical supply system, and switches able to adopt closed and open states in which they couple and decouple the source to/from the electrical supply system, respectively. This method comprises a step (10-50) in which a value of a counter is incremented by a chosen number each time the switches are put into at least one of the closed state and open state, and, when the value of this counter is greater than a first threshold, a user of the vehicle is alerted to a need to check said vehicle with an after-sales service.
Description
DESCRIPTION DESCRIPTION
TITRE : CONTRÔLE DE L’UTILISATION DE COMMUTATEURS DE COUPLAGE D’UNE SOURCE D’ÉNERGIE ÉLECTRIQUE D’UN VÉHICULE À UN RÉSEAU D’ALIMENTATION ÉLECTRIQUE TITLE: CONTROL OF THE USE OF SWITCHES FOR COUPLING A VEHICLE ELECTRIC POWER SOURCE TO A POWER SUPPLY NETWORK
5 La présente invention revendique la priorité de la demande française N°2108735 déposée le 17.08.2021 dont le contenu (texte, dessins et revendications) est ici incorporé par référence. 5 The present invention claims the priority of French application No. 2108735 filed on 17.08.2021, the content of which (text, drawings and claims) is incorporated herein by reference.
Domaine technique de l’invention Technical field of the invention
L’invention concerne les véhicules comprenant une source d’énergie électrique chargée d’alimenter un réseau d’alimentation électrique, et plus précisément le contrôle de l’utilisation de commutateurs assurant le couplage/découplage de la source au réseau d’alimentation électrique dans de tels véhicules. The invention relates to vehicles comprising a source of electrical energy responsible for supplying an electrical supply network, and more specifically the control of the use of switches ensuring the coupling/decoupling of the source to the electrical supply network in such vehicles.
Etat de la technique 5 Certains véhicules, éventuellement de type automobile, comprennent une source d’énergie électrique chargée d’alimenter en courant électrique un réseau d’alimentation électrique. Par exemple, ce réseau d’alimentation électrique peut alimenter, notamment, un réseau de bord et au moins une machine motrice électrique du groupe motopropulseur (ou GMP) de son0 véhicule. La source d’énergie électrique peut, par exemple, être une pile à combustible ou une batterie rechargeable (dite « principale » et parfois appelée « batterie de traction ») pouvant être rechargée par un chargeur de batterie embarqué lorsque ce dernier a été couplé à une source d’alimentation en courant alternatif, comme par exemple une borne de recharge, un boîtier mural5 (ou « wallbox ») ou une prise de courant murale, via un câble de recharge. Par exemple, dans le cas d’une batterie principale supportant des recharges dites de mode 2 ou 3 la tension d’entrée nominale (c’est-à-dire normale) est d’environ 220 V et la tension de sortie est d’environ 450 V (dans ce cas, on dit qu’il s’agit d’une moyenne tension). 0 Dans ce qui suit et ce qui précède, on entend par « réseau de bord » une
sous-partie du reseau d alimentation electnque qui comprend des équipements (ou organes) électriques (ou électroniques) consommant de l’énergie électrique et étant « non prioritaire(s) » ou « sécuritaire(s) » (et donc prioritaire(s)). Par exemple, la tension au sein du réseau de bord peutSTATE OF THE ART Certain vehicles, possibly of the automobile type, comprise a source of electrical energy responsible for supplying electrical current to an electrical power supply network. For example, this power supply network can supply, in particular, an on-board network and at least one electric motor machine of the powertrain (or GMP) of its vehicle. The source of electrical energy may, for example, be a fuel cell or a rechargeable battery (known as "main" and sometimes called "traction battery") which can be recharged by an on-board battery charger when the latter has been coupled to an alternating current power source, such as for example a charging station, a wall box 5 (or “wallbox”) or a wall socket, via a charging cable. For example, in the case of a main battery supporting so-called mode 2 or 3 recharges, the nominal (i.e. normal) input voltage is approximately 220 V and the output voltage is about 450 V (in this case it is said to be medium voltage). 0 In the following and above, the term "on-board network" means a sub-part of the electrical supply network which includes electrical (or electronic) equipment (or components) consuming electrical energy and being "non-priority(s)" or "safe(s)" (and therefore priority(ies) ). For example, the voltage within the on-board network can
5 être comprise entre 12 V et 48 V (dans ce cas, on dit qu’il s’agit d’une très basse tension). 5 be between 12 V and 48 V (in this case it is said to be very low voltage).
Lorsque la source d’énergie électrique est de type basse ou moyenne tension (typiquement comprise entre 350 V et 600 V), elle peut fournir des courants électriques continus (ou DC (« Direct Current »)) très importants, ce qui peut s’avérer dangereux pour les usagers d’un véhicule, notamment lorsque survient un court-circuit ou lors d’une phase de recharge. Il y a en effet un risque d’électrocution et/ou de brulure. Afin de limiter ce risque, il a été proposé d’équiper les véhicules de commutateurs (ou coupe-circuits) qui sont propres à prendre un état fermé dans lequel ils couplent la source d’énergie électrique5 au réseau d’alimentation électrique et un état ouvert dans lequel ils découplent la source d’énergie électrique du réseau d’alimentation électrique afin de l’isoler. L’état fermé est autorisé lorsque le véhicule est dans une phase de roulage ou dans une phase de recharge de la source d’énergie électrique, et pendant toute la durée du placement des commutateurs dans l’état fermé on0 réalise en permanence dans le véhicule une surveillance des défauts de découplage (ou d’isolation) pour éviter tout risque d’électrocution. When the source of electrical energy is of the low or medium voltage type (typically between 350 V and 600 V), it can supply very high direct currents (or DC (“Direct Current”)), which can be prove to be dangerous for the users of a vehicle, in particular when a short circuit occurs or during a charging phase. There is a risk of electrocution and/or burns. In order to limit this risk, it has been proposed to equip vehicles with switches (or circuit breakers) which are capable of assuming a closed state in which they couple the source of electrical energy5 to the electrical power supply network and a state open in which they decouple the source of electrical energy from the electrical supply network in order to isolate it. The closed state is authorized when the vehicle is in a rolling phase or in a phase of recharging the source of electrical energy, and throughout the duration of the placing of the switches in the closed state, one permanently realizes in the vehicle monitoring of decoupling (or insulation) faults to avoid any risk of electrocution.
Ces commutateurs ont une durée de vie qui dépend au moins du nombre de fois où ils sont activés, c’est-à-dire lorsqu’ils font l’objet d’une transition de l’état ouvert à l’état fermé ou de l’état fermé à l’état ouvert. Ils sont donc conçus pour5 être activés un nombre moyen de fois très important, typiquement compris entre 80000 et 200000. Cela signifie que plus le nombre d’activations des commutateurs d’un véhicule est supérieur à ce nombre moyen d’activations, plus ces commutateurs ont une probabilité importante de ne plus pouvoir être activés et donc de rester dans l’état ouvert qui interdit le roulage du véhicule0 ou dans l’état fermé qui empêche le découplage (ou l’isolation) de la source d’énergie électrique. These switches have a lifetime which depends at least on the number of times they are activated, i.e. when they are subject to a transition from the open state to the closed state or from the closed state to the open state. They are therefore designed to be activated a very high average number of times, typically between 80,000 and 200,000. have a high probability of no longer being able to be activated and therefore of remaining in the open state which prohibits the rolling of the vehicle0 or in the closed state which prevents the decoupling (or isolation) of the source of electrical energy.
Lorsque le GMP d’un véhicule est tout électrique ou hybride, l’activation des commutateurs de source (d’énergie électrique) est beaucoup plus fréquente
que lorsque le GMP est purement thermique. Par consequent, le risque que les commutateurs de source d’un véhicule ne soient plus activables avant l’expiration de la durée de vie moyenne de ce dernier est notablement plus important lorsque le GMP est de type tout électrique ou hybride. Or,When the GMP of a vehicle is all-electric or hybrid, the activation of the source switches (of electrical energy) is much more frequent than when the GMP is purely thermal. Consequently, the risk that the source switches of a vehicle can no longer be activated before the expiry of the average service life of the latter is notably greater when the GMP is of the all-electric or hybrid type. Gold,
5 actuellement tant que les commutateurs de source d’un véhicule ne sont pas devenus inactivables, les usagers de ce véhicule ne peuvent pas en être informés, ce qui peut s’avérer dangereux en cas de blocage dans l’état fermé. L’invention a donc notamment pour but d’améliorer la situation. 5 currently as long as the source switches of a vehicle have not become inactive, the users of this vehicle cannot be informed, which can prove dangerous in the event of blocking in the closed state. The aim of the invention is therefore in particular to improve the situation.
Présentation de l’invention Presentation of the invention
Elle propose notamment à cet effet un procédé de contrôle destiné à être mis en œuvre dans un véhicule comprenant une source d’énergie électrique, un réseau d’alimentation électrique, et des commutateurs propres à prendre des états fermé et ouvert dans lesquels respectivement ils couplent et découplent5 la source au/du réseau d’alimentation électrique. In particular, it proposes for this purpose a control method intended to be implemented in a vehicle comprising a source of electrical energy, an electrical power supply network, and switches capable of assuming closed and open states in which they respectively couple and decouple the source to/from the power supply network.
Ce procédé de contrôle se caractérise par le fait qu’il comprend une étape dans laquelle on incrémente une valeur d’un compteur d’un nombre choisi chaque fois que les commutateurs ont été placés dans l’un au moins des état fermé et état ouvert, et, lorsque la valeur de ce compteur est supérieure à un premier0 seuil, on alerte un usager du véhicule d’un besoin de vérification de ce dernier dans un service après-vente. This control method is characterized in that it comprises a step in which a value of a counter is incremented by a chosen number each time the switches have been placed in at least one of the closed state and open state. , and, when the value of this counter is greater than a first threshold, a user of the vehicle is alerted of a need to check the latter in an after-sales service.
Ainsi, il est désormais possible de contrôler (ou surveiller) le nombre d’utilisations des commutateurs, afin d’alerter les usagers du véhicule dès que le risque d’impossibilité d’activation de ces commutateurs devient trop5 important compte tenu du nombre moyen d’activations que ces derniers sont censés pouvoir supporter théoriquement. Thus, it is now possible to control (or monitor) the number of uses of the switches, in order to alert the users of the vehicle as soon as the risk of impossibility of activating these switches becomes too great5 given the average number of activations that the latter are supposed to be able to support theoretically.
Le procédé de contrôle selon l’invention peut comporter d’autres caractéristiques qui peuvent être prises séparément ou en combinaison, et notamment : 0 - dans son étape on peut incrémenter la valeur du compteur d’un nombre choisi chaque fois que les commutateurs ont été placés dans l’état fermé ou dans l’état ouvert ; The control method according to the invention may comprise other characteristics which may be taken separately or in combination, and in particular: 0 - in its step, the value of the counter can be incremented by a chosen number each time the switches have been placed in the closed state or in the open state;
- dans son étape le premier seuil peut être compris entre 148000 et 248000 ;
- dans son etape, lorsque la valeur du compteur est supérieure a un second seuil, supérieur au premier seuil, on peut imposer un placement des commutateurs dans l’état ouvert afin d’interdire l’alimentation du réseau d’alimentation électrique ; - in its stage, the first threshold can be between 148000 and 248000; - In its step, when the value of the counter is greater than a second threshold, greater than the first threshold, it is possible to impose a placement of the switches in the open state in order to prohibit the supply of the electrical supply network;
5 - en présence de la dernière option, dans son étape le second seuil peut être compris entre 150000 et 250000 ; 5 - in the presence of the last option, in its step the second threshold can be between 150000 and 250000;
- dans son étape on peut incrémenter la valeur du compteur d’un nombre qui est choisi en fonction d’une valeur d’un courant fourni par la source au réseau d’alimentation électrique après un placement des commutateurs dans l’état fermé ou juste avant un placement des commutateurs dans l’état ouvert ;- in its step, the value of the counter can be incremented by a number which is chosen according to a value of a current supplied by the source to the power supply network after placing the switches in the closed or just state before placing the switches in the open state;
- en présence de la dernière option, dans son étape le nombre d’incrémentation peut être choisi parmi N nombres associés respectivement à N intervalles successifs de valeurs de courant fourni, avec N > 3. - in the presence of the last option, in its step the number of increments can be chosen from among N numbers associated respectively with N successive intervals of current values supplied, with N > 3.
L’invention propose également un produit programme d’ordinateur comprenant5 un jeu d’instructions qui, lorsqu’il est exécuté par des moyens de traitement, est propre à mettre en œuvre un procédé de contrôle du type de celui présenté ci-avant pour contrôler, dans un véhicule comprenant une source d’énergie électrique, un réseau d’alimentation électrique, et des commutateurs propres à prendre des états fermé et ouvert dans lesquels respectivement ils couplent et0 découplent la source au/du réseau d’alimentation électrique, le nombre de placements des commutateurs dans l’un au moins des état fermé et état ouvert. L’invention propose également un dispositif de contrôle destiné à équiper un véhicule comprenant une source d’énergie électrique, un réseau d’alimentation électrique, et des commutateurs propres à prendre des états fermé et ouvert5 dans lesquels respectivement ils couplent et découplent la source au/du réseau d’alimentation électrique. The invention also proposes a computer program product comprising5 a set of instructions which, when it is executed by processing means, is capable of implementing a control method of the type of that presented above for controlling , in a vehicle comprising a source of electrical energy, an electrical power supply network, and switches capable of assuming closed and open states in which they respectively couple and decouple the source to/from the electrical power supply network, the number placement of the switches in at least one of the closed state and the open state. The invention also proposes a control device intended to equip a vehicle comprising a source of electrical energy, an electrical power supply network, and switches capable of assuming closed and open states5 in which respectively they couple and decouple the source to the /from the power supply network.
Ce dispositif de contrôle se caractérise par le fait qu’il comprend au moins un processeur et au moins une mémoire agencés pour effectuer les opérations consistant à incrémenter une valeur d’un compteur d’un nombre choisi chaque0 fois que les commutateurs ont été placés dans l’un au moins des état fermé et état ouvert, et, lorsque la valeur de ce compteur est supérieure à un premier seuil, à déclencher une alerte d’un usager du véhicule d’un besoin de vérification de ce dernier dans un service après-vente.
L invention propose egalement un véhiculé, eventuellement de type automobile, et comprenant une source d’énergie électrique, un réseau d’alimentation électrique, des commutateurs propres à prendre des états fermé et ouvert dans lesquels respectivement ils couplent et découplent la sourceThis control device is characterized in that it comprises at least one processor and at least one memory arranged to perform the operations consisting in incrementing a value of a counter by a chosen number each time the switches have been placed in at least one of the closed state and open state, and, when the value of this counter is greater than a first threshold, to trigger an alert for a user of the vehicle of a need to check the latter in an after service -sale. The invention also proposes a vehicle, possibly of the automotive type, and comprising a source of electrical energy, an electrical power supply network, switches capable of taking closed and open states in which they respectively couple and decouple the source
5 au/du réseau d’alimentation électrique, et un dispositif de contrôle du type de celui présenté ci-avant. 5 to/from the power supply network, and a control device of the type presented above.
Brève description des figures Brief description of figures
D’autres caractéristiques et avantages de l’invention apparaîtront à l’examen de la description détaillée ci-après, et des dessins annexés, sur lesquels :Other characteristics and advantages of the invention will appear on examination of the detailed description below, and of the appended drawings, in which:
[Fig. 1] illustre schématiquement et fonctionnellement un exemple de réalisation d’un véhicule comprenant un GMP, à machine motrice électrique alimentée par une batterie principale rechargeable, et un dispositif de contrôle selon l’invention, 5 [Fig. 2] illustre schématiquement un exemple d’algorithme mettant en œuvre un procédé de contrôle selon l’invention, et [Fig. 1] schematically and functionally illustrates an embodiment of a vehicle comprising a GMP, with an electric drive machine powered by a main rechargeable battery, and a control device according to the invention, 5 [Fig. 2] schematically illustrates an example of an algorithm implementing a control method according to the invention, and
[Fig. 3] illustre schématiquement et fonctionnellement un exemple de réalisation d’un calculateur d’un boîtier de gestion comprenant un dispositif de contrôle selon l’invention. 0 [Fig. 3] schematically and functionally illustrates an embodiment of a computer of a management box comprising a control device according to the invention. 0
Description détaillée de l’invention Detailed description of the invention
L’invention a notamment pour but de proposer un procédé de contrôle, et un dispositif de contrôle DC associé, destinés à permettre le contrôle (ou la surveillance) du nombre d’utilisations des commutateurs (ou coupe-circuits)5 CC qui sont chargés, au sein d’un véhicule V à source SE d’énergie électrique et réseau d’alimentation électrique RA, de coupler/découpler la source SE au/du réseau d’alimentation électrique RA. The object of the invention is in particular to propose a control method, and an associated DC control device, intended to allow the control (or monitoring) of the number of uses of the switches (or circuit breakers) 5 DC which are charged , within a vehicle V with electric power source SE and electric power supply network RA, to couple/decouple the source SE to/from the electric power supply network RA.
Dans ce qui suit, on considère, à titre d’exemple non limitatif, que le véhicule V est de type automobile. Il s’agit par exemple d’une voiture, comme illustré sur0 la figure 1 . Mais l’invention n’est pas limitée à ce type de véhicule. Elle concerne en effet tout type de véhicule comprenant une source d’énergie électrique devant alimenter un réseau d’alimentation électrique (au moins pendant les phases de roulage et les phases de recharge). Ainsi, elle concerne, par
exemple, les véhiculés terrestres (véhiculés utilitaires, camping-cars, minibus, cars, camions, motocyclettes, engins de voirie, engins de chantier, engins agricoles, engins de loisir (motoneige, kart), et engins à chenille(s), par exemple), les bateaux et les aéronefs. In what follows, it is considered, by way of non-limiting example, that the vehicle V is of the automobile type. This is for example a car, as illustrated in FIG. 1. But the invention is not limited to this type of vehicle. It relates in fact to any type of vehicle comprising a source of electrical energy that must supply an electrical power supply network (at least during the driving phases and the recharging phases). Thus, it concerns, by example, land vehicles (utility vehicles, motorhomes, minibuses, cars, trucks, motorcycles, road construction machinery, construction machinery, agricultural machinery, leisure machinery (snowmobile, go-kart), and caterpillar machinery, for example), boats and aircraft.
5 Par ailleurs, on considère dans ce qui suit, à titre d’exemple non limitatif, que le véhicule V comprend un groupe motopropulseur (ou GMP) de type tout électrique (et donc dont la motricité est assurée exclusivement par au moins une machine motrice électrique MME). Mais le GMP pourrait être de type hybride (thermique et électrique). 5 Furthermore, it is considered in what follows, by way of non-limiting example, that the vehicle V comprises a powertrain (or GMP) of the all-electric type (and therefore whose traction is ensured exclusively by at least one driving machine electric MS). But the GMP could be of the hybrid type (thermal and electric).
De plus, on considère dans ce qui suit, à titre d’exemple non limitatif, que la source SE d’énergie électrique est une batterie rechargeable (dite « principale »). Par exemple, cette batterie principale SE comprend au moins deux modules de stockage d’énergie électrique comprenant chacun au moins une cellule électrochimique de stockage d’énergie électrique,5 éventuellement de type lithium-ion (ou Li-ion) ou Ni-Mh ou encore plomb. Mais l’invention n’est pas limitée à ce type de source d’énergie électrique. Ainsi, elle concerne également les piles à combustible, par exemple. In addition, it is considered in what follows, by way of non-limiting example, that the source SE of electrical energy is a rechargeable battery (called “main”). For example, this main battery SE comprises at least two electrical energy storage modules each comprising at least one electrochemical electrical energy storage cell, 5 optionally of lithium-ion (or Li-ion) or Ni-Mh or still lead. However, the invention is not limited to this type of electrical energy source. Thus, it also relates to fuel cells, for example.
On a schématiquement représenté sur la figure 1 un véhicule V comprenant une chaîne de transmission à GMP électrique, un réseau d’alimentation0 électrique RA, des commutateurs (ou coupe-circuits) CC, et un dispositif de contrôle DC selon l’invention. There is schematically represented in FIG. 1 a vehicle V comprising an electric GMP transmission chain, an electric power supply network RA, switches (or circuit breakers) CC, and a control device DC according to the invention.
La chaîne de transmission a un GMP qui est, ici, purement électrique et donc qui comprend, notamment, une machine motrice MME électrique, un arbre moteur AM, une source SE d’énergie électrique (ici une batterie principale5 rechargeable) et un arbre de transmission AT. On entend ici par « machine motrice électrique » une machine électrique agencée de manière à fournir ou récupérer du couple pour déplacer le véhicule V. The transmission chain has a GMP which is, here, purely electrical and therefore which comprises, in particular, an electric driving machine MME, an AM motor shaft, a source SE of electrical energy (here a rechargeable main battery5) and a shaft of AT transmission. Here, the term “electric drive machine” means an electric machine arranged so as to supply or recover torque to move the vehicle V.
La machine motrice MME (ici un moteur électrique) est couplée à la source SE, afin d’être alimentée en énergie électrique, ainsi qu’éventuellement0 d’alimenter cette source SE en énergie électrique. Elle est couplée à l’arbre moteur AM, pour lui fournir du couple par entraînement en rotation. Cet arbre moteur AM est ici couplé à un réducteur RD qui est aussi couplé à l’arbre de transmission AT, lui-même couplé à un premier train T1 (ici de roues), de
preference via un différentiel D1 . The driving machine MME (here an electric motor) is coupled to the source SE, in order to be supplied with electrical energy, as well as possibly to supply this source SE with electrical energy. It is coupled to the motor shaft AM, to provide it with torque by rotational drive. This motor shaft AM is here coupled to a reducer RD which is also coupled to the transmission shaft AT, itself coupled to a first train T1 (here of wheels), of preferably via a D1 differential.
Ce premier train T1 est ici situé dans la partie avant PW du véhicule V. Mais dans une variante ce premier train T 1 pourrait être celui qui est ici référencé T2 et qui est situé dans la partie arrière PRV du véhicule V. This first train T1 is here located in the front part PW of the vehicle V. But in a variant this first train T 1 could be the one which is here referenced T2 and which is located in the rear part PRV of the vehicle V.
5 Par exemple, la source SE (ici une batterie principale) peut être de type basse tension (typiquement 450 V à titre illustratif). Mais elle pourrait être de type moyenne tension ou haute tension. 5 For example, the source SE (here a main battery) can be of the low voltage type (typically 450 V for illustrative purposes). But it could be medium voltage or high voltage.
Lorsque la source SE est une batterie principale, elle peut être rechargée via un chargeur de batterie connecté à un connecteur de recharge équipant le véhicule V dans une partie de sa carrosserie et auquel on connecte un câble de recharge également connecté (temporairement ou de façon permanente) à une source d’alimentation en courant alternatif, pendant une phase de recharge. Cette source (d’alimentation en courant alternatif) peut être, par exemple, une borne de recharge, un boîtier mural (ou wallbox) ou une prise5 de courant murale. When the source SE is a main battery, it can be recharged via a battery charger connected to a charging connector fitted to the vehicle V in a part of its bodywork and to which is connected a charging cable also connected (temporarily or permanently ) to an alternating current power source, during a charging phase. This source (of alternating current power supply) can be, for example, a charging station, a wall box (or wallbox) or a wall socket5.
Par ailleurs, au moins lorsque la source SE est une batterie principale, elle est chargée de fournir de l’énergie électrique à un convertisseur CV afin qu’il la convertisse en énergie électrique utilisable par un réseau de bord RB faisant partie du réseau d’alimentation électrique RA. 0 Ce convertisseur CV peut aussi servir à la recharge d’une source SE constituant une batterie principale (ou de traction), sauf dans le cas d’une recharge dite « de mode 4 ». En effet, dans ce dernier cas la batterie principale SE peut être rechargée en direct par une borne adaptée au mode 4 et fournissant directement le courant continu (ou DC) à la batterie principale SE5 sans utiliser le convertisseur CV. Furthermore, at least when the source SE is a main battery, it is responsible for supplying electrical energy to a converter CV so that it converts it into electrical energy that can be used by an on-board network RB forming part of the network of RA power supply. 0 This CV converter can also be used to recharge an SE source constituting a main (or traction) battery, except in the case of so-called “mode 4” charging. Indeed, in the latter case the main battery SE can be recharged directly by a terminal adapted to mode 4 and supplying direct current (or DC) directly to the main battery SE5 without using the converter CV.
Le réseau de bord RB est un réseau d’alimentation électrique qui comprend des équipements (ou organes) électriques (ou électroniques) qui consomment de l’énergie électrique (généralement de type très basse tension (typiquement 12 V, 24 V ou 48 V)). 0 Les commutateurs (ou coupe-circuits) CC sont installés entre la source SE (ici une batterie principale) et le réseau d’alimentation électrique RA (et en particulier le convertisseur CV et la machine motrice électrique MME). Ces
commutateurs CC sont propres a prendre un état ferme dans lequel ils couplent la source SE au réseau d’alimentation électrique RA et un état ouvert dans lequel ils découplent la source SE du réseau d’alimentation électrique RA afin de l’isoler. L’état fermé est autorisé lorsque le véhicule V est dans une phaseThe on-board network RB is an electrical power supply network which includes electrical (or electronic) equipment (or components) which consume electrical energy (generally of the very low voltage type (typically 12 V, 24 V or 48 V) ). 0 The switches (or circuit breakers) CC are installed between the source SE (here a main battery) and the electrical power supply network RA (and in particular the converter CV and the electric motor machine MME). These switches CC are capable of adopting a closed state in which they couple the source SE to the power supply network RA and an open state in which they decouple the source SE from the power supply network RA in order to isolate it. The closed state is allowed when the vehicle V is in a phase
5 de roulage ou dans une phase de recharge de la source SE. 5 rolling or in a recharging phase of the SE source.
La gestion de la source SE peut, comme illustré sur la figure 1 , être assurée par un boîtier de gestion BG (parfois appelé BMS (« Battery Management System »). Ce boîtier de gestion BG comprend un calculateur CB qui est notamment chargé d’adresser aux commutateurs CC des commandes destinées à les placer dans l’état ouvert ou l’état fermé selon les besoins du moment. The management of the source SE can, as illustrated in FIG. 1, be ensured by a management unit BG (sometimes called BMS (“Battery Management System”). This management unit BG comprises a computer CB which is in particular responsible for send commands to the DC switches intended to place them in the open state or the closed state according to the needs of the moment.
On notera, comme illustré non limitativement sur la figure 1 , que le véhicule V peut aussi comprendre une batterie de servitude BS chargée de fournir de l’énergie électrique au réseau de bord RB, en complément de celle fournie par5 le convertisseur CV (alimenté par la source SE). Par exemple, cette batterie de servitude BS peut être agencée sous la forme d’une batterie de type très basse tension (typiquement 12 V, 24 V ou 48 V). Elle est rechargeable au moins par le convertisseur CV. On considère dans ce qui suit, à titre d’exemple non limitatif, que la batterie de servitude BS est de type Lithium-ion 12 V. 0 On notera également que dans l’exemple illustré non limitativement sur la figure 1 le véhicule V comprend un boîtier de distribution BD auquel sont couplés la batterie de servitude BS, le convertisseur CV et le réseau de bord RB. Ce boîtier de distribution BD est chargé de distribuer dans le réseau de bord RB l’énergie électrique stockée dans la batterie de servitude BS ou5 produite par le convertisseur CV, pour l’alimentation des organes (ou équipements) électriques en fonction de demandes d’alimentation reçues.It will be noted, as illustrated without limitation in FIG. 1, that the vehicle V can also comprise a service battery BS responsible for supplying electrical energy to the on-board network RB, in addition to that supplied by the converter CV (powered by source SE). For example, this service battery BS can be arranged in the form of a very low voltage type battery (typically 12 V, 24 V or 48 V). It is rechargeable at least by the CV converter. It is considered in what follows, by way of non-limiting example, that the service battery BS is of the 12 V Lithium-ion type. It will also be noted that in the example illustrated without limitation in FIG. a distribution box BD to which the service battery BS, the converter CV and the on-board network RB are coupled. This distribution box BD is responsible for distributing in the on-board network RB the electrical energy stored in the service battery BS ou5 produced by the converter CV, for supplying the electrical components (or equipment) according to requests for power received.
Comme évoqué plus haut, l’invention propose notamment un procédé de contrôle destiné à permettre le contrôle du nombre d’utilisations des commutateurs CC au sein du véhicule V. 0 Ce procédé (de contrôle) peut être mis en œuvre au moins partiellement par le dispositif de contrôle DC (illustré sur les figures 1 et 3) qui comprend à cet effet au moins un processeur PR1 , par exemple de signal numérique (ou DSP (« Digital Signal Processor »)), et au moins une mémoire MD. Ce dispositif de
contrôle DC peut donc etre realise sous la forme d une combinaison de circuits ou composants électriques ou électroniques (ou « hardware ») et de modules logiciels (ou « software »). As mentioned above, the invention proposes in particular a control method intended to allow the control of the number of uses of the switches CC within the vehicle V. 0 This method (of control) can be implemented at least partially by the DC control device (illustrated in Figures 1 and 3) which comprises for this purpose at least one processor PR1, for example digital signal (or DSP ("Digital Signal Processor")), and at least one memory MD. This device of DC control can therefore be implemented in the form of a combination of electrical or electronic circuits or components (or “hardware”) and software modules (or “software”).
La mémoire MD est vive afin de stocker des instructions pour la mise en œuvreThe MD memory is RAM in order to store instructions for the implementation
5 par le processeur PR1 d’une partie au moins du procédé de contrôle. Le processeur PR1 peut comprendre des circuits intégrés (ou imprimés), ou bien plusieurs circuits intégrés (ou imprimés) reliés par des connections filaires ou non filaires. On entend par circuit intégré (ou imprimé) tout type de dispositif apte à effectuer au moins une opération électrique ou électronique. 5 by the processor PR1 of at least part of the control process. The processor PR1 can comprise integrated (or printed) circuits, or else several integrated (or printed) circuits connected by wired or wireless connections. By integrated (or printed) circuit is meant any type of device capable of performing at least one electrical or electronic operation.
Dans l’exemple illustré non limitativement sur les figures 1 et 3, le dispositif de contrôle DC fait partie du calculateur CB du boîtier de gestion BG qui assure la gestion de la source SE. Mais cela n’est pas obligatoire. En effet, le dispositif de contrôle DC pourrait comprendre son propre calculateur dédié, lequel est alors couplé au calculateur CB. 5 Comme illustré non limitativement sur la figure 2, le procédé (de contrôle), selon l’invention, comprend au moins une étape de contrôle 10-50 qui est mise en œuvre dès que le véhicule V a été intégralement assemblé, et donc prêt à être utilisé. In the example illustrated without limitation in FIGS. 1 and 3, the control device DC is part of the computer CB of the management box BG which manages the source SE. But this is not mandatory. Indeed, the control device DC could comprise its own dedicated computer, which is then coupled to the computer CB. 5 As illustrated without limitation in Figure 2, the method (of control), according to the invention, comprises at least one control step 10-50 which is implemented as soon as the vehicle V has been fully assembled, and therefore ready to be used.
Dans cette étape 10-50 on (le dispositif de contrôle DC) incrémente dans une0 sous-étape 10 la valeur vc d’un compteur d’un nombre ni choisi chaque fois que les commutateurs CC ont été placés dans l’un au moins des état fermé et état ouvert. Par exemple, c’est le calculateur CB du boîtier de gestion BG qui peut informer le dispositif de contrôle DC de chaque placement des commutateurs CC dans l’un au moins des état fermé et état ouvert. 5 Puis, lorsque la valeur vc du compteur est supérieure à un premier seuil s1 on (le dispositif de contrôle DC) peut, dans une sous-étape 40 de l’étape 10-50, alerter un usager du véhicule V d’un besoin de vérification de ce dernier (V) dans un service après-vente. In this step 10-50 one (the control device DC) increments in a0 sub-step 10 the value vc of a counter by a number ni chosen each time the switches CC have been placed in at least one of the closed state and open state. For example, it is the computer CB of the management box BG which can inform the control device DC of each placement of the switches CC in at least one of the closed and open states. 5 Then, when the value vc of the counter is greater than a first threshold s1 one (the control device DC) can, in a sub-step 40 of step 10-50, alert a user of the vehicle V of a need verification of the latter (V) in an after-sales service.
Par exemple, et comme illustré non limitativement sur la figure 2, l’étape 10-500 peut comprendre une sous-étape 20 dans laquelle on (le dispositif de contrôle DC) compare la valeur vc du compteur au premier seuil s1 après chaque incrémentation du compteur du nombre d’incrémentation ni choisi (dans une sous-étape 10). On comprendra que chaque fois que la valeur vc du compteur
demeure inferieure au premier seuil s1 , on interrompt temporairement (ou on met en attente (ou « standby »)) le procédé de contrôle, jusqu’à ce que les commutateurs CC fassent l’objet d’un nouveau placement dans l’un au moins des état fermé et état ouvert, et dans ce cas on réitère la sous-étape 10. For example, and as illustrated without limitation in FIG. 2, step 10-500 can comprise a sub-step 20 in which one (the control device DC) compares the value vc of the counter with the first threshold s1 after each incrementation of the counter of the number of increments ni chosen (in a sub-step 10). It will be understood that each time the value vc of the counter remains lower than the first threshold s1 , the control process is temporarily interrupted (or put on hold (or "standby"), until the switches CC are placed again in one of the less of the closed state and the open state, and in this case the sub-step 10 is repeated.
5 On comprendra également que ce sont au moins les processeur PR1 et mémoire MD du dispositif de contrôle DC qui sont agencés pour effectuer les opérations consistant à incrémenter la valeur vc du compteur d’un nombre d’incrémentation ni choisi chaque fois que les commutateurs CC ont été placés dans l’un au moins des état fermé et état ouvert, et, lorsque la valeur vc du compteur est supérieure au premier seuil s1 , à déclencher l’alerte d’un usager du véhicule V d’un besoin de vérification de ce dernier (V) dans un service après-vente. Cette alerte a pour but d’inciter l’usager à apporter rapidement son véhicule V dans un service après-vente en vue d’une détermination de l’origine de l’alerte. 5 L’alerte peut se faire par affichage d’un témoin de service général ou dédié à la source SE, éventuellement dans une couleur rouge, ou d’un message d’alerte textuel général ou dédié sur un écran du véhicule V, comme par exemple celui du tableau de bord ou celui du combiné central, et/ou par diffusion d’un message d’alerte sonore (ou audio) dédié via au moins un haut-0 parleur présent dans le véhicule V. De préférence, l’affichage d’une alerte perdure tant que le véhicule V n’a pas été inspecté dans un service après- vente. 5 It will also be understood that it is at least the processor PR1 and memory MD of the control device DC which are arranged to perform the operations consisting in incrementing the value vc of the counter by a number of increments ni chosen each time the switches CC have been placed in at least one of the closed state and open state, and, when the value vc of the counter is greater than the first threshold s1, to trigger the alert of a user of the vehicle V of a need to verify the latter (V) in an after-sales service. The purpose of this alert is to encourage the user to quickly bring his vehicle V to an after-sales service in order to determine the origin of the alert. 5 The alert can be given by display of a general service warning light or one dedicated to the source SE, possibly in a red color, or of a general or dedicated text alert message on a screen of the vehicle V, such as by example that of the dashboard or that of the central handset, and/or by broadcasting a dedicated sound (or audio) alert message via at least one loudspeaker present in the vehicle V. Preferably, the display of an alert continues as long as the vehicle V has not been inspected by an after-sales service.
On notera qu’en complément de l’alerte des usagers on peut aussi stocker dans une mémoire du véhicule V (par exemple une mémoire morte du boîtier5 de gestion BG) un premier code défaut représentatif de cette alerte et de sa cause). Ainsi, lorsqu’un technicien consultera le journal des défauts du véhicule V, il pourra immédiatement comprendre que le problème vient du dépassement du premier seuil s1 du compteur d’activations des commutateurs CC. It should be noted that in addition to the user alert, it is also possible to store in a memory of the vehicle V (for example a ROM of the management box BG) a first fault code representative of this alert and its cause). Thus, when a technician consults the fault log of the vehicle V, he can immediately understand that the problem comes from the exceeding of the first threshold s1 of the counter of activations of the switches CC.
Grâce à l’invention, il est désormais possible de contrôler (ou surveiller) le0 nombre d’utilisations des commutateurs CC, afin d’alerter les usagers du véhicule V dès que l’on estime que le risque d’impossibilité d’activation des commutateurs CC devient trop important (vc > s1 ) compte tenu du nombre moyen d’activations que ces derniers (CC) sont censés pouvoir supporter en
theone. Thanks to the invention, it is now possible to control (or monitor) the number of uses of the switches CC, in order to alert the users of the vehicle V as soon as it is estimated that the risk of impossibility of activating the CC switches becomes too large (vc > s1 ) given the average number of activations that the latter (CC) are supposed to be able to support in theone.
De préférence, dans l’étape 10-50 on (le dispositif de contrôle DC) peut incrémenter la valeur vc du compteur d’un nombre ni choisi chaque fois que les commutateurs CC ont été placés dans l’état fermé ou dans l’état ouvert. Preferably, in step 10-50 one (the control device DC) can increment the value vc of the counter by a chosen number ni each time the switches CC have been placed in the closed state or in the state open.
5 Dans ce cas, à chaque placement dans l’état fermé on incrémente d’un nombre ni choisi et à chaque placement dans l’état ouvert on incrémente d’un nombre ni choisi (possiblement différent de celui du placement précédent, comme on le verra plus loin). Mais dans une variante de réalisation on pourrait procéder à une incrémentation d’un nombre ni choisi seulement à chaque placement dans l’état ouvert. Dans une autre variante de réalisation on pourrait procéder à une incrémentation d’un nombre ni choisi seulement à chaque placement dans l’état fermé. 5 In this case, each placement in the closed state is incremented by a number ni chosen and each placement in the open state is incremented by a number ni chosen (possibly different from that of the previous placement, as will see later). But in a variant embodiment, one could proceed to an incrementation of a number ni chosen only at each placement in the open state. In another variant embodiment, it would be possible to increment a number ni chosen only at each placement in the closed state.
Par exemple, dans l’étape 10-50 le premier seuil s1 peut être compris entre 148000 et 248000. On comprendra que la valeur du premier seuil s1 est choisie5 en fonction du nombre moyen d’activations que les commutateurs CC sont censés pouvoir supporter en théorie. A titre d’exemples, lorsque le nombre moyen d’activations est égal à 150000, on peut, par exemple, utiliser un premier seuil s1 égal à 148000, lorsque le nombre moyen d’activations est égal à 200000, on peut, par exemple, utiliser un premier seuil s1 égal à 198000, et0 lorsque le nombre moyen d’activations est égal à 250000, on peut, par exemple, utiliser un premier seuil s1 égal à 248000. For example, in step 10-50 the first threshold s1 can be between 148000 and 248000. It will be understood that the value of the first threshold s1 is chosen5 according to the average number of activations that the switches CC are supposed to be able to support in theory. By way of example, when the average number of activations is equal to 150000, it is possible, for example, to use a first threshold s1 equal to 148000, when the average number of activations is equal to 200000, it is possible, for example , use a first threshold s1 equal to 198000, and0 when the average number of activations is equal to 250000, it is possible, for example, to use a first threshold s1 equal to 248000.
On notera que dans l’étape 10-50, lorsque la valeur vc du compteur est supérieure à un second seuil s2, qui est supérieur au premier seuil s1 , on (le dispositif de contrôle DC) peut dans une sous-étape 50 imposer un placement5 des commutateurs CC dans l’état ouvert afin d’interdire l’alimentation du réseau d’alimentation électrique RA par la source SE. On considère en effet que le risque d’impossibilité d’activation des commutateurs CC est devenu beaucoup trop important (vc > s2) compte tenu du nombre moyen d’activations que ces derniers (CC) sont censés pouvoir supporter en théorie, et donc on0 empêche définitivement l’alimentation du réseau d’alimentation électrique RA par la source SE. It will be noted that in step 10-50, when the value vc of the counter is greater than a second threshold s2, which is greater than the first threshold s1, one (the control device DC) can in a sub-step 50 impose a placement5 of the switches CC in the open state in order to prohibit the supply of the power supply network RA by the source SE. It is considered that the risk of impossibility of activating the switches CC has become much too great (vc > s2) given the average number of activations that the latter (CC) are supposed to be able to support in theory, and therefore on0 definitively prevents the supply of the power supply network RA by the source SE.
Le second seuil s2 peut, par exemple, être choisi sensiblement égal au nombre moyen d’activations que les commutateurs CC sont censés pouvoir supporter
en theone. Ainsi, dans I etape 10-50 le second seuil s2 peut etre compris entre 150000 et 250000. A titre d’exemples, lorsque le nombre moyen d’activations est égal à 150000, on peut, par exemple, utiliser un second seuil s2 égal à 150000, lorsque le nombre moyen d’activations est égal à 200000, on peut, parThe second threshold s2 can, for example, be chosen substantially equal to the average number of activations that the switches CC are supposed to be able to withstand in theone. Thus, in step 10-50, the second threshold s2 can be between 150,000 and 250,000. By way of example, when the average number of activations is equal to 150,000, it is possible, for example, to use a second threshold s2 equal to 150000, when the average number of activations is equal to 200000, one can, for
5 exemple, utiliser un second seuil s2 égal à 200000, et lorsque le nombre moyen d’activations est égal à 250000, on peut, par exemple, utiliser un second seuil s2 égal à 250000. 5 example, use a second threshold s2 equal to 200000, and when the average number of activations is equal to 250000, it is possible, for example, to use a second threshold s2 equal to 250000.
Par exemple, et comme illustré non limitativement sur la figure 2, l’étape 10-50 peut comprendre une sous-étape 40 dans laquelle, lorsque la valeur vc du compteur est supérieure au premier seuil s1 dans la sous-étape 20, on (le dispositif de contrôle DC) compare cette valeur vc du compteur au second seuil s2. On comprendra que chaque fois que la valeur vc du compteur demeure inférieure au second seuil s2, on alerte l’usager du véhicule V dans la sous- étape 40, puis on interrompt temporairement (ou on met en attente (ou5 « standby »)) le procédé de contrôle, jusqu’à ce que les commutateurs CC fassent l’objet d’un nouveau placement dans l’un au moins des état fermé et état ouvert, et dans ce cas on réitère la sous-étape 10. En revanche, lorsque la valeur vc du compteur est supérieure au second seuil s2 (vc > s2), on empêche définitivement l’alimentation du réseau d’alimentation électrique RA0 par la source SE. For example, and as illustrated without limitation in FIG. 2, step 10-50 can comprise a sub-step 40 in which, when the value vc of the counter is greater than the first threshold s1 in sub-step 20, one ( the control device DC) compares this value vc of the counter with the second threshold s2. It will be understood that each time the value vc of the counter remains below the second threshold s2, the user of the vehicle V is alerted in sub-step 40, then temporarily interrupted (or put on hold (or "standby")) the control method, until the switches CC are the subject of a new placement in at least one of the closed state and the open state, and in this case the sub-step 10 is repeated. On the other hand, when the value vc of the counter is greater than the second threshold s2 (vc>s2), the supply of the electrical supply network RA0 by the source SE is definitively prevented.
On notera qu’en complément de l’empêchement définitif de l’alimentation du réseau d’alimentation électrique RA par la source SE, on peut aussi stocker dans une mémoire du véhicule V (par exemple la mémoire morte du boîtier de gestion BG) un second code défaut représentatif de cet empêchement et de5 sa cause. Ainsi, lorsqu’un technicien consultera le journal des défauts du véhicule V, il pourra immédiatement comprendre que le problème vient du dépassement du second seuil s2 du compteur d’activations des commutateurs CC. It will be noted that in addition to the definitive prevention of the supply of the electrical power supply network RA by the source SE, it is also possible to store in a memory of the vehicle V (for example the ROM of the management box BG) a second fault code representing this impediment and its cause. Thus, when a technician consults the fault log of the vehicle V, he can immediately understand that the problem comes from the exceeding of the second threshold s2 of the counter of activations of the switches CC.
On notera également qu’en complément de l’empêchement définitif de0 l’alimentation du réseau d’alimentation électrique RA par la source SE, on peut aussi déclencher dans le véhicule V une alarme signalant à au moins un usager du véhicule V un problème empêchant le roulage du véhicule V et donc nécessitant impérativement l’intervention d’un dépanneur.
L alarme peut se faire par affichage d un témoin de service general ou dedie a la source SE, éventuellement dans une couleur rouge, ou d’un message d’alarme textuel général ou dédié sur un écran du véhicule V, comme par exemple celui du tableau de bord ou celui du combiné central, et/ou parIt will also be noted that in addition to the definitive prevention of the supply of the electric power supply network RA by the source SE, it is also possible to trigger in the vehicle V an alarm signaling to at least one user of the vehicle V a problem preventing rolling of the vehicle V and therefore imperatively requiring the intervention of a repairman. The alarm can take place by displaying a general or dedicated service warning light for the source SE, possibly in red, or a general or dedicated textual alarm message on a screen of the vehicle V, such as that of the dashboard or that of the central instrument panel, and/or by
5 diffusion d’un message d’alarme sonore (ou audio) dédié via au moins un haut- parleur présent dans le véhicule V. De préférence, l’affichage d’une alarme perdure tant que le véhicule V n’a pas été inspecté dans un service après- vente. 5 broadcast of a dedicated sound (or audio) alarm message via at least one loudspeaker present in the vehicle V. Preferably, the display of an alarm continues as long as the vehicle V has not been inspected in after-sales service.
Egalement par exemple, dans l’étape 10-50 on (le dispositif de contrôle DC) peut incrémenter la valeur vc du compteur d’un nombre d’incrémentation ni qui est choisi en fonction de la valeur du courant qui est fourni par la source SE au réseau d’alimentation électrique RA après un placement des commutateurs CC dans l’état fermé ou juste avant un placement des commutateurs CC dans l’état ouvert. Cette option est destinée à prendre en compte le fait que plus le5 courant qui traverse les commutateurs CC est élevé, plus l’usure de ces derniers (CC) est accélérée, et donc plus leur durée de vie sera réduite. Par conséquent, afin de tenir compte de cette usure variable, on choisit le nombre d’incrémentation ni en fonction du courant traversant les commutateurs CC à l’instant considéré. 0 Par exemple, dans l’étape 10-50 le nombre d’incrémentation ni peut être choisi parmi N nombres associés respectivement à N intervalles successifs de valeurs de courant fourni, avec N > 3. Also for example, in step 10-50 one (the DC control device) can increment the value vc of the counter by a number of increments ni which is chosen according to the value of the current which is supplied by the source SE to the power supply network RA after placing the switches CC in the closed state or just before placing the switches CC in the open state. This option is intended to take into account the fact that the higher the current flowing through the DC switches, the more the wear of the latter (CC) is accelerated, and therefore the more their lifetime will be reduced. Consequently, in order to take this variable wear into account, the number of increments ni is chosen according to the current flowing through the switches CC at the time considered. 0 For example, in step 10-50 the number of increments ni can be chosen from among N numbers associated respectively with N successive intervals of current values supplied, with N > 3.
A titre d’exemple N peut être égal à sept (7), et dans ce cas : For example N can be equal to seven (7), and in this case:
- s’il y a une activation avec un courant compris entre 0 A et 0,5 A (compris), la5 valeur vc du compteur peut être incrémentée de 1 (soit ni = +1 ), - if there is an activation with a current between 0 A and 0.5 A (inclusive), the 5 value vc of the counter can be incremented by 1 (i.e. ni = +1),
- s’il y a une activation avec un courant compris entre 0,5 A (non compris) et 20 A (compris), la valeur vc du compteur peut être incrémentée de 2,5 (soit ni = +2,5), - if there is an activation with a current between 0.5 A (not included) and 20 A (included), the value vc of the counter can be incremented by 2.5 (i.e. ni = +2.5),
- s’il y a une activation avec un courant compris entre 20 A (non compris) et0 100 A (compris), la valeur vc du compteur peut être incrémentée de 200 (soit ni = +200), - if there is an activation with a current between 20 A (not included) and 0 100 A (included), the value vc of the counter can be incremented by 200 (i.e. ni = +200),
- s’il y a une activation avec un courant compris entre 100 A (non compris) et
250 A (compris), la valeur vc du compteur peut etre incrementee de 2000 (soit ni = +2000), - if there is an activation with a current between 100 A (not included) and 250 A (included), the value vc of the counter can be incremented by 2000 (i.e. ni = +2000),
- s’il y a une activation avec un courant compris entre 250 A (non compris) et 500 A (compris), la valeur vc du compteur peut être incrémentée de 6667 (soit- if there is an activation with a current between 250 A (not included) and 500 A (included), the value vc of the counter can be incremented by 6667 (i.e.
5 ni = +6667), 5 ni = +6667),
- s’il y a une activation avec un courant compris entre 500 A (non compris) et 750 A (compris), la valeur vc du compteur peut être incrémentée de 40000 (soit ni = +40000), et - if there is an activation with a current between 500 A (not included) and 750 A (included), the value vc of the counter can be incremented by 40000 (i.e. ni = +40000), and
- s’il y a une activation avec un courant compris entre 750 A (non compris) et 1000 A (compris), la valeur vc du compteur peut être incrémentée de 200000 (soit ni = +200000), ce qui implique une immobilisation directe du véhicule V puisque la valeur vc se retrouve immédiatement supérieure au second seuil s2. - if there is an activation with a current between 750 A (not included) and 1000 A (included), the value vc of the counter can be incremented by 200000 (i.e. ni = +200000), which implies a direct immobilization of the vehicle V since the value vc is immediately greater than the second threshold s2.
Tous les intervalles de valeurs de courant qui précèdent sont donnés à titre5 d’exemple illustratif. De même, tous les nombres d’incrémentation ni qui précèdent et qui sont respectivement associés aux N intervalles sont donnés à titre d’exemple illustratif. De plus, le nombre N peut prendre n’importe quelle valeur de préférence supérieure ou égale à trois. All the above ranges of current values are given by way of illustrative example. Likewise, all the incrementation numbers ni which precede and which are respectively associated with the N intervals are given by way of illustrative example. Moreover, the number N can take any value preferably greater than or equal to three.
On notera également que la suppression de l’affichage dans le véhicule V de0 l’alerte déclenchée en cas de dépassement du premier seuil s1 mais pas de l’éventuel second seuil s2, peut se faire dans un service après-vente après remplacement d’au moins les commutateurs CC et réinitialisation à zéro du compteur, ou bien, en l’absence de remplacement des commutateurs CC, au moyen d’une réinitialisation (au moins partielle) du compteur (à l’appréciation5 du technicien effectuant l’inspection du véhicule V). En revanche, en cas de dépassement de l’éventuel second seuil s2, on est contraint de remplacer au moins les commutateurs CC dans un service après-vente, puis de réinitialiser à zéro le compteur. It will also be noted that the deletion of the display in the vehicle V of the alert triggered in the event of exceeding the first threshold s1 but not of the possible second threshold s2, can be done in an after-sales service after replacement of at least the DC switches and reset to zero of the counter, or alternatively, in the absence of replacement of the DC switches, by means of a reset (at least partial) of the counter (at the discretion5 of the technician carrying out the inspection of the vehicle V). On the other hand, in the event of exceeding the possible second threshold s2, one is forced to replace at least the switches CC in an after-sales service, then to reset the counter to zero.
On notera également, comme illustré non limitativement sur la figure 3, que le0 calculateur CB (ou le calculateur dédié du dispositif de contrôle DC) peut aussi comprendre une mémoire de masse MM1 , notamment pour le stockage temporaire des éventuelles valeurs du courant fourni par la source SE au réseau d’alimentation électrique RA lors d’une activation, et d’éventuelles
données intermédiaires intervenant dans tous ses calculs et traitements. Par ailleurs, ce calculateur CB (ou le calculateur dédié du dispositif de contrôle DC) peut aussi comprendre une interface d’entrée IE pour la réception d’au moins les valeurs du courant fourni, éventuellement après les avoir mises en forme 5 et/ou démodulées et/ou amplifiées, de façon connue en soi, au moyen d’un processeur de signal numérique PR2. De plus, ce calculateur CB (ou le calculateur dédié du dispositif de contrôle DC) peut aussi comprendre une interface de sortie IS, notamment pour délivrer des ordres de déclenchement d’alerte (et éventuellement de stockage de code défaut) ou d’interdiction 0 d’alimentation du réseau d’alimentation électrique RA par la source SE. It will also be noted, as illustrated without limitation in FIG. 3, that the computer CB (or the computer dedicated to the control device DC) can also include a mass memory MM1, in particular for the temporary storage of any values of the current supplied by the source SE to the power supply network RA during an activation, and any intermediate data involved in all its calculations and processing. Furthermore, this computer CB (or the dedicated computer of the control device DC) can also comprise an input interface IE for receiving at least the values of the current supplied, possibly after having formatted them 5 and/or demodulated and/or amplified, in a manner known per se, by means of a digital signal processor PR2. In addition, this computer CB (or the dedicated computer of the DC control device) can also include an IS output interface, in particular for issuing alert triggering orders (and possibly fault code storage) or prohibition 0 supply of the power supply network RA by the source SE.
On notera également que l’invention propose aussi un produit programme d’ordinateur (ou programme informatique) comprenant un jeu d’instructions qui, lorsqu’il est exécuté par des moyens de traitement de type circuits électroniques (ou hardware), comme par exemple le processeur PR1 , est 5 propre à mettre en œuvre le procédé de contrôle décrit ci-avant pour contrôler, dans le véhicule V, le nombre de placements des commutateurs CC dans l’un au moins de leurs état fermé et état ouvert.
It will also be noted that the invention also proposes a computer program product (or computer program) comprising a set of instructions which, when it is executed by processing means of the electronic circuit (or hardware) type, such as for example the processor PR1, is capable of implementing the control method described above to control, in the vehicle V, the number of placements of the switches CC in at least one of their closed state and open state.
Claims
1 . Procédé de contrôle pour un véhicule (V) comprenant une source (SE) d’énergie électrique, un réseau d’alimentation électrique (RA), et des commutateurs (CC) propres à prendre des états fermé et ouvert dans lesquels1 . Control method for a vehicle (V) comprising a source (SE) of electrical energy, an electrical power supply network (RA), and switches (CC) suitable for assuming closed and open states in which
5 respectivement ils couplent et découplent ladite source (SE) audit/dudit réseau d’alimentation électrique (RA), caractérisé en ce qu’il comprend une étape (10- 50) dans laquelle on incrémente une valeur d’un compteur d’un nombre choisi chaque fois que lesdits commutateurs (CC) ont été placés dans l’un au moins desdits état fermé et état ouvert, et, lorsque ladite valeur du compteur est supérieure à un premier seuil, on alerte un usager dudit véhicule (V) d’un besoin de vérification de ce dernier (V) dans un service après-vente. 5 respectively they couple and decouple said source (SE) from said/from said electrical power supply network (RA), characterized in that it comprises a step (10-50) in which a value of a counter is incremented by one number chosen each time said switches (CC) have been placed in at least one of said closed state and open state, and, when said counter value is greater than a first threshold, a user of said vehicle (V) is alerted d need to check the latter (V) in an after-sales service.
2. Procédé selon la revendication 1 , caractérisé en ce que dans ladite étape (10-50) on incrémente ladite valeur du compteur d’un nombre choisi chaque fois que lesdits commutateurs (CC) ont été placés dans ledit état fermé5 ou dans ledit état ouvert. 2. Method according to claim 1, characterized in that in said step (10-50) said counter value is incremented by a chosen number each time said switches (CC) have been placed in said closed state5 or in said state open.
3. Procédé selon la revendication 1 ou 2, caractérisé en ce que dans ladite étape (10-50) ledit premier seuil est compris entre 148000 et 248000. 3. Method according to claim 1 or 2, characterized in that in said step (10-50) said first threshold is between 148000 and 248000.
4. Procédé selon l’une des revendications 1 à 3, caractérisé en ce que dans ladite étape (10-50), lorsque ladite valeur du compteur est supérieure à0 un second seuil, supérieur audit premier seuil, on impose un placement desdits commutateurs (CC) dans ledit état ouvert afin d’interdire l’alimentation dudit réseau d’alimentation électrique (RA). 4. Method according to one of claims 1 to 3, characterized in that in said step (10-50), when said counter value is greater than 0 a second threshold, greater than said first threshold, placing said switches ( CC) in said open state in order to prohibit the supply of said power supply network (RA).
5. Procédé selon la revendication 4, caractérisé en ce que dans ladite étape (10-50) ledit second seuil est compris entre 150000 et 250000. 55. Method according to claim 4, characterized in that in said step (10-50) said second threshold is between 150000 and 250000. 5
6. Procédé selon l’une des revendications 1 à 5, caractérisé en ce que dans ladite étape (10-50) on incrémente ladite valeur du compteur d’un nombre qui est choisi en fonction d’une valeur d’un courant fourni par ladite source (SE) audit réseau d’alimentation électrique (RA) après un placement desdits commutateurs (CC) dans ledit état fermé ou juste avant un placement desdits0 commutateurs (CC) dans ledit état ouvert. 6. Method according to one of claims 1 to 5, characterized in that in said step (10-50) said value of the counter is incremented by a number which is chosen according to a value of a current supplied by said source (SE) to said power supply network (RA) after placing said switches (CC) in said closed state or just before placing said switches (CC) in said open state.
7. Procédé selon la revendication 6, caractérisé en ce que dans ladite étape (10-50) ledit nombre d’incrémentation est choisi parmi N nombres
associes respectivement a N intervalles successifs de valeurs de courant fourni, avec N > 3. 7. Method according to claim 6, characterized in that in said step (10-50) said number of increments is chosen from among N numbers respectively associated with N successive intervals of supplied current values, with N > 3.
8. Produit programme d’ordinateur comprenant un jeu d’instructions qui, lorsqu’il est exécuté par des moyens de traitement, est propre à mettre en8. Computer program product comprising a set of instructions which, when executed by processing means, is capable of implementing
5 œuvre le procédé de contrôle selon l’une des revendications 1 à 7 pour contrôler, dans un véhicule (V) comprenant une source (SE) d’énergie électrique, un réseau d’alimentation électrique (RA), et des commutateurs (CC) propres à prendre des états fermé et ouvert dans lesquels respectivement ils couplent et découplent ladite source (SE) audit/dudit réseau d’alimentation électrique (RA), le nombre de placements desdits commutateurs (CC) dans l’un au moins desdits états fermé et ouvert. 5 implements the control method according to one of claims 1 to 7 for controlling, in a vehicle (V) comprising a source (SE) of electrical energy, an electrical power supply network (RA), and switches (CC ) suitable for assuming closed and open states in which respectively they couple and decouple said source (SE) from said/from said electric power supply network (RA), the number of times said switches (CC) are placed in at least one of said states closed and open.
9. Dispositif de contrôle (DC) pour un véhicule (V) comprenant une source (SE) d’énergie électrique, un réseau d’alimentation électrique (RA), et des commutateurs (CC) propres à prendre des états fermé et ouvert dans lesquels5 respectivement ils couplent et découplent ladite source (SE) audit/dudit réseau d’alimentation électrique (RA), caractérisé en ce qu’il comprend au moins un processeur (PR2) et au moins une mémoire (MD2) agencés pour effectuer les opérations consistant à incrémenter une valeur d’un compteur d’un nombre choisi chaque fois que lesdits commutateurs (CC) ont été placés dans l’un au0 moins des état fermé et état ouvert, et, lorsque ladite valeur du compteur est supérieure à un premier seuil, à déclencher une alerte d’un usager dudit véhicule (V) d’un besoin de vérification de ce dernier (V) dans un service après- vente. 9. Control device (DC) for a vehicle (V) comprising a source (SE) of electrical energy, an electrical power supply network (RA), and switches (CC) capable of assuming closed and open states in which respectively couple and decouple said source (SE) to said/from said electrical power supply network (RA), characterized in that it comprises at least one processor (PR2) and at least one memory (MD2) arranged to perform the operations consisting in incrementing a value of a counter by a chosen number each time said switches (CC) have been placed in at least one of the closed state and open state, and, when said counter value is greater than a first threshold, to trigger an alert from a user of said vehicle (V) of a need to check the latter (V) in an after-sales service.
10. Véhicule (V) comprenant une source (SE) d’énergie électrique, un5 réseau d’alimentation électrique (RA), et des commutateurs (CC) propres à prendre des états fermé et ouvert dans lesquels respectivement ils couplent et découplent ladite source (SE) audit/dudit réseau d’alimentation électrique (RA), caractérisé en ce qu’il comprend en outre un dispositif de contrôle (DC) selon la revendication 9. 0
10. Vehicle (V) comprising a source (SE) of electrical energy, an electrical power supply network (RA), and switches (CC) suitable for assuming closed and open states in which they respectively couple and decouple said source (SE) to said electrical power supply network (RA), characterized in that it further comprises a control device (DC) according to claim 9. 0
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2108735A FR3126209A1 (en) | 2021-08-17 | 2021-08-17 | CONTROL OF THE USE OF SWITCHES FOR COUPLING A VEHICLE ELECTRIC POWER SOURCE TO A POWER SUPPLY NETWORK |
PCT/FR2022/051153 WO2023021248A1 (en) | 2021-08-17 | 2022-06-15 | Control of the use of switches for coupling an electrical energy source of a vehicle to an electrical supply system |
Publications (1)
Publication Number | Publication Date |
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EP4387861A1 true EP4387861A1 (en) | 2024-06-26 |
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EP22744238.1A Pending EP4387861A1 (en) | 2021-08-17 | 2022-06-15 | Control of the use of switches for coupling an electrical energy source of a vehicle to an electrical supply system |
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EP (1) | EP4387861A1 (en) |
CN (1) | CN117813211A (en) |
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US3655614A (en) | 1970-09-30 | 1972-04-11 | Ciba Geigy Corp | Stabilized polyolefin compositions containing alkylated p-hydroxyphenylalkylphosphinates |
JP2010166644A (en) * | 2009-01-13 | 2010-07-29 | Toyota Motor Corp | Power supply system of vehicle |
CN109752646B (en) * | 2017-11-03 | 2021-04-02 | 株洲中车时代电气股份有限公司 | Vehicle-mounted direct current contactor evaluation and early warning method, device and equipment |
CN108767918A (en) * | 2018-05-24 | 2018-11-06 | 奇瑞汽车股份有限公司 | Battery charge-discharge circuit and electric vehicle |
JP7136041B2 (en) * | 2019-08-06 | 2022-09-13 | トヨタ自動車株式会社 | Vehicle management device, vehicle and vehicle management method |
CN112098831B (en) * | 2020-09-17 | 2023-11-03 | 北京车和家信息技术有限公司 | Method, device and circuit for predicting service life of battery relay and automobile |
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- 2021-08-17 FR FR2108735A patent/FR3126209A1/en active Pending
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2022
- 2022-06-15 EP EP22744238.1A patent/EP4387861A1/en active Pending
- 2022-06-15 WO PCT/FR2022/051153 patent/WO2023021248A1/en active Application Filing
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FR3126209A1 (en) | 2023-02-24 |
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