EP4387861A1 - Contrôle de l'utilisation de commutateurs de couplage d'une source d'énergie électrique d'un véhicule à un réseau d'alimentation électrique - Google Patents
Contrôle de l'utilisation de commutateurs de couplage d'une source d'énergie électrique d'un véhicule à un réseau d'alimentation électriqueInfo
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- 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
-
- 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
-
- 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.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2108735A FR3126209A1 (fr) | 2021-08-17 | 2021-08-17 | Contrôle de l’utilisation de commutateurs de couplage d’une source d’énergie électrique d’un véhicule à un réseau d’alimentation électrique |
| PCT/FR2022/051153 WO2023021248A1 (fr) | 2021-08-17 | 2022-06-15 | Contrôle de l'utilisation de commutateurs de couplage d'une source d'énergie électrique d'un véhicule à un réseau d'alimentation électrique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4387861A1 true EP4387861A1 (fr) | 2024-06-26 |
Family
ID=77913282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22744238.1A Withdrawn EP4387861A1 (fr) | 2021-08-17 | 2022-06-15 | Contrôle de l'utilisation de commutateurs de couplage d'une source d'énergie électrique d'un véhicule à un réseau d'alimentation électrique |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4387861A1 (fr) |
| CN (1) | CN117813211A (fr) |
| FR (1) | FR3126209A1 (fr) |
| WO (1) | WO2023021248A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240135285A (ko) | 2023-03-03 | 2024-09-10 | 삼성에스디아이 주식회사 | 스위치 제어 장치, 및 이를 포함하는 배터리 팩 및 차량 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3655614A (en) | 1970-09-30 | 1972-04-11 | Ciba Geigy Corp | Stabilized polyolefin compositions containing alkylated p-hydroxyphenylalkylphosphinates |
| JP2010166644A (ja) * | 2009-01-13 | 2010-07-29 | Toyota Motor Corp | 車両の電源システム |
| CN109752646B (zh) * | 2017-11-03 | 2021-04-02 | 株洲中车时代电气股份有限公司 | 车载直流接触器评估与预警方法、装置、设备 |
| CN108767918A (zh) * | 2018-05-24 | 2018-11-06 | 奇瑞汽车股份有限公司 | 电池充放电电路和电动汽车 |
| JP7136041B2 (ja) * | 2019-08-06 | 2022-09-13 | トヨタ自動車株式会社 | 車両管理装置、車両および車両管理方法 |
| CN112098831B (zh) * | 2020-09-17 | 2023-11-03 | 北京车和家信息技术有限公司 | 电池组继电器的寿命预测方法、装置、电路及汽车 |
-
2021
- 2021-08-17 FR FR2108735A patent/FR3126209A1/fr not_active Withdrawn
-
2022
- 2022-06-15 EP EP22744238.1A patent/EP4387861A1/fr not_active Withdrawn
- 2022-06-15 CN CN202280055343.0A patent/CN117813211A/zh active Pending
- 2022-06-15 WO PCT/FR2022/051153 patent/WO2023021248A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3126209A1 (fr) | 2023-02-24 |
| WO2023021248A1 (fr) | 2023-02-23 |
| CN117813211A (zh) | 2024-04-02 |
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