WO2020089044A1 - Procédé et dispositif de détection d'un défaut d'une batterie dans un réseau de bord à faible tension d'un véhicule électrique - Google Patents

Procédé et dispositif de détection d'un défaut d'une batterie dans un réseau de bord à faible tension d'un véhicule électrique Download PDF

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Publication number
WO2020089044A1
WO2020089044A1 PCT/EP2019/079083 EP2019079083W WO2020089044A1 WO 2020089044 A1 WO2020089044 A1 WO 2020089044A1 EP 2019079083 W EP2019079083 W EP 2019079083W WO 2020089044 A1 WO2020089044 A1 WO 2020089044A1
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WO
WIPO (PCT)
Prior art keywords
battery
voltage
electric vehicle
defect
low
Prior art date
Application number
PCT/EP2019/079083
Other languages
German (de)
English (en)
Inventor
Harald Paulhart
Andreas HOESER
Ulrich Foerch
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2020089044A1 publication Critical patent/WO2020089044A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/13—Maintaining the SoC within a determined range
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • B60L58/18—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules
    • B60L58/20—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries of two or more battery modules having different nominal voltages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
    • B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Definitions

  • the present invention relates to a method and a device for detecting a defect in a battery in a low-voltage electrical system of an electric vehicle.
  • NSP-BN battery Low-voltage electrical system battery (NSP-BN battery), mostly 12V or 24V nominal voltage instead. If the vehicle is started successfully, it can be assumed that the NSP-BN battery is OK. If the NSP-BN battery is defective or worn, the vehicle will no longer start because the NSP-BN battery is no longer able to provide the required power for the starter (starter). The vehicle remains in a safe state (the engine does not start) and can no longer be moved. The driver can clearly see that the vehicle or the NSP-BN battery must be checked in a workshop.
  • the electric vehicle can also be started with an almost defective or worn NSP-BN battery, since the currents required during the starting process of an electric vehicle are relatively low and shortly after the starting of the electric vehicle, the low-voltage electrical system of the electric vehicle through the DC / DC converter is supported or supplied.
  • This has the disadvantage that a defective NSP-BN battery, for example 12V, is only recognized when it is finally defective. In the worst case, a defective NSP-BN battery is not recognized and, if the DC / DC converter fails at the same time, the NSP-BN breaks in. This can be critical
  • Circuit arrangements for checking an operating state of a battery are known, for example, from DE 10 2014 003309 Al.
  • the present invention provides a method and a device for detecting a defect in a battery in a low-voltage electrical system of an electric vehicle according to independent claims 1 and 10, respectively.
  • the present invention provides a method for detecting a defect in a battery in a low-voltage electrical system of an electric vehicle, with a first step of applying an electrical consumer of the electrical vehicle to the low-voltage electrical system.
  • the method further comprises the second step of detecting a resulting one
  • the method further comprises the third step of determining the defect when the detected voltage drop occurs
  • the present invention provides a device for detecting a defect in a battery in a low-voltage electrical system of an electric vehicle, with a control device, a switching device, an electrical consumer and a voltage sensor, which is designed such that an electrical consumer is switched by a switching device with a battery Low-voltage electrical system of the electric vehicle is electrically connected and the switching device is actuated via a control device. Furthermore, a resulting voltage drop in the battery of the low-voltage electrical system is detected with a voltage sensor and a defect in the battery is determined if the detected voltage drop meets a predetermined criterion. Furthermore, the present invention provides a computer program product according to independent claim 9.
  • the present invention relates to a computer program product with a program code stored on a machine-readable carrier
  • the computer program product can be executed with a control device.
  • the control device can be an electrical control unit
  • Vehicle comprising a processor and a memory.
  • control device can be a microcontroller or a computer.
  • the method and the device for detecting a defect in a battery according to the present invention enable existing components in electric vehicles to be used for diagnosing the NS P-BN battery. Even before the low-voltage on-board electrical system (NSP-BN) is supported by the DC / DC converter, a previously defined load, for example an electrical consumer of the electric vehicle, can be applied to the NS P-BN battery in order to detect a possible defect in the NSP -BN- to recognize battery.
  • the 12V consumers in an electric vehicle can be used as an electrical load, in which a measurable and correspondingly noticeable drop in voltage occurs,
  • existing electrical consumers and / or controllable loads for example bidirectional DC / DC converters, advantageously offer the possibility of identifying relevant properties of the battery during a start or over a sequence of several starts. These include the state of health (SOH) and the state of charge (SOC) of the battery. This can be used, on the one hand, to predict the future Battery behavior and on the other hand to derive remedial measures, for example battery training, controlled cycling and the creation of defined loading / unloading profiles.
  • SOH state of health
  • SOC state of charge
  • existing voltage sensors of the electric vehicle for example the voltage sensors of the vehicle control units or the DC / DC converter, are advantageously used individually or in combination in order to detect a voltage drop beyond a predetermined criterion and thus to determine a defect in the battery .
  • the method and the device according to the present invention can also be used for batteries with a 24V or 48V nominal voltage.
  • the battery of the electric vehicle can be dimensioned smaller and scarcer, since a defect in the battery is determined before the electric vehicle starts and thus the previously required remaining capacities of the battery, as a reserve for safe operation of the electric vehicle, are no longer are necessary.
  • the NS P-BN battery is advantageously diagnosed reliably, thus ensuring the necessary redundancy of the 12 V voltage supply. This ensures that in the event of a failure if the previous defect of the 12V battery is not recognized, the function of electrical braking and steering support and possibly other important vehicle functions do not cease to apply.
  • Increased wear can also be diagnosed and displayed to the vehicle driver. An early replacement of the 12V Batteries take place and the number of technical downtimes and non-starting vehicles are greatly reduced. The increased wear occurs when the battery has reached the end of its useful life and needs to be replaced.
  • the first step and the second step are repeated at least one more time and the defect in the battery is determined in the third step if the voltage drop repeatedly fulfills the predetermined criterion.
  • This embodiment is advantageous in that the state of the battery and thus the wear and / or the defect can also be determined via a trend.
  • the defect in the battery of the low-voltage electrical system is determined before the electric vehicle is started.
  • This embodiment is advantageous in that a defect in the battery can be determined before the electric vehicle is started and thus before the start of use. Critical driving situations due to the failure of the battery while driving can be better avoided.
  • the defect in the battery of the low-voltage electrical system is determined after a DC / DC converter of the electric vehicle has been switched off.
  • This embodiment is advantageous in that the battery of the electric vehicle can be checked even with a long driving cycle time.
  • the defect in the battery of the low-voltage on-board electrical system is determined during a diagnostic phase and the predetermined criterion includes a break-in and a recovery
  • Voltage represents the condition and thus possible wear of the battery.
  • the electrical consumer of the electric vehicle is applied to the low-voltage electrical system in a pulsed manner.
  • This embodiment is advantageous in that the battery of the electric vehicle can be tested more gently and has a longer service life.
  • This embodiment is advantageous in that the battery of the electric vehicle is worn out but still provides power that the wear and tear of the battery is signaled to the vehicle driver and he initiates appropriate measures, for example, to have the battery replaced before a defect occurs in the battery.
  • the drive of the electric vehicle is deactivated when the detected voltage drop fulfills a predetermined criterion.
  • This embodiment is advantageous in that if a defect of the battery is determined, the further use of the electric vehicle
  • the wear of the battery is determined, the voltage drops in the battery being recorded over the service life of the battery.
  • the state of health of the battery can thus advantageously be determined over the period of use.
  • Fig. 1 is a schematic representation for explaining a device 10 for detecting a defect in a battery B in one
  • Fig. 2 is a schematic representation for explaining a method for detecting a defect of a battery B in one
  • Fig. 3 is a schematic representation for explaining a first
  • Fig. 4 is a schematic representation for explaining a second
  • Fig. 5 is a schematic representation for explaining a third
  • FIG. 1 is a schematic illustration for explaining a device 10 for detecting a defect in a battery B in a low-voltage electrical system of an electric vehicle.
  • reference symbol SC denotes a switching device which is connected to a battery B, typically a 12V low-voltage on-board electrical system battery (NSP-BN battery).
  • the switching device SC is set up in such a way that an electrical consumer L, preferably an existing electrical component of the electric vehicle with the battery B des
  • Voltage drop can be generated, for example the
  • the switching device SC is connected to a control device ST.
  • the control device ST actuates the switching device SC.
  • the device 10 is also set up to connect a voltage sensor V in parallel to the electrical load L in order to detect a resulting voltage drop in the battery B of the low-voltage electrical system (NSP-BN).
  • a voltage drop is to be understood as the no longer possible possibility of providing battery B with current. This depends on the switched electrical load L and on the nominal voltage of the battery B.
  • the device 10 is also set up to determine the defect of the battery B when the detected voltage range meets a predetermined criterion.
  • the predetermined criterion depends on the battery B used in the low-voltage electrical system of the electric vehicle.
  • the device 10 can be used to determine a defect in batteries B with a nominal voltage of 12V, 24V and 48V.
  • the device 10 of the present invention makes it possible to reliably diagnose a defect of the battery B in the NSP-BN, for example a short circuit, a worn battery B due to the service life, deep discharge or damage due to thermal stress, without using an intelligent battery sensor as a voltage sensor V or an additional electrical consumer L must be installed in the electric vehicle. If a defect in the battery is found, the vehicle can be brought into a safe state, for example the drive torque is denied. Furthermore, the defect can be shown to the vehicle driver, for example in a head-up display or on a multifunctional display of the electric vehicle.
  • the DC / DC converter can be switched off in support of the 12V battery B in the case of electric vehicles with a long driving cycle time and which have a high power consumption. This would have the consequence that all of the electrical consumers L that are switched on are supplied by the battery B and cause a voltage drop in the battery B. Diagnosis D can thus also be carried out while the vehicle is stationary by switching off the charging function of the DC / DC converter. This is possible as long as there are no objections to safety, for example the danger to other road users.
  • the diagnosis to be carried out with existing electrical consumers L can be carried out in pulse form, similar to a start pulse for conventional starters, in which a high maximum current flows in the order of a few 10 ms, or as quasi-steady state diagnosis with rather medium currents over a somewhat longer period.
  • the length of the pulse depends on the amplitude of the voltage dip that can be achieved with the electrical loads L.
  • FIG. 2 is a schematic illustration for explaining a method for detecting a defect in a battery B in a low-voltage electrical system of an electric vehicle. The method for detecting a defect in a battery B in a
  • Low-voltage on-board electrical system of an electric vehicle comprises, before starting the electric vehicle, a defined electrical consumer L of the electric vehicle is applied to the low-voltage on-board electrical system of the electric vehicle in a first step S1.
  • Consumer L can be, for example, a bidirectional DC / DC converter, the rear window heater or seat heater of the electric vehicle.
  • the voltage on the 12V side of battery B will drop or decrease by a certain value.
  • the value of the voltage dip depends on the system and the load.
  • the voltage drop in battery B of the low-voltage electrical system is caused by a
  • the voltage sensor V detected in a second step S2.
  • the voltage sensor V is preferably an existing voltage sensor V of the DC / DC converter or a vehicle control unit and can be used individually or in combination to determine the voltage dip.
  • the detected voltage drop fulfills a specified criterion, it can be assumed that the battery B is defective.
  • the defect of the battery B is determined in a third step S3. If there is a defect, the vehicle start can be stopped or the electric vehicle can be switched to a safe state (drive without function) and this can be signaled to the driver.
  • Fig. 3 is a schematic illustration for explaining a first
  • the schematic illustration is divided into three voltage ranges 11, 12 and 13.
  • the voltage range 11 is the first voltage range in which the battery B is rated as working.
  • the second voltage range 12 is the voltage range at which the battery B is rated as worn.
  • the third voltage range 13 is the
  • Voltage drop does not exceed the first voltage range 11, as a predetermined criterion for a functioning battery B.
  • the battery recovers within the diagnostic phase. For the battery B according to the first voltage curve 1 in FIG. 3, no defect is thus determined and the battery B is rated as OK.
  • the voltage ranges 11, 12 and 13 must be adjusted according to the nominal voltage of the battery used (12V, 24V, 48V).
  • Diagnostic phase D recovers when the electrical consumer L is disconnected from the NSP-BN of the electric vehicle.
  • the predefined criterion thus indicates the maximum amplitude of the voltage drop and the duration (diagnosis phase) of the voltage drop until the maximum amplitude is reached and the battery B is recovered until the voltage that is still possible is reached.
  • Fig. 4 is a schematic illustration for explaining a second
  • FIG 4 shows the second voltage curve 2 during the diagnosis D of a battery B, in particular in the case of a worn battery B.
  • a defined electrical consumer L is switched by the switching device SC into the NSP-BN of the electric vehicle.
  • the second voltage curve 2 exhibits a voltage dip within the diagnosis phase D. The voltage drop exceeds the first
  • the voltage of the battery B recovers and reaches the first voltage range 11.
  • This diagnosis can be carried out repeatedly over several measurements. If the second voltage range 12 is repeatedly reached during the diagnosis, it can be assumed that the battery B is worn out. In this scenario, further use of the electric vehicle is not prohibited. The driver is advised, for example, that he should go to a workshop with the electric vehicle, since the worn-out battery B threatens to keep the electric vehicle at a standstill.
  • the battery B is rated as worn out if the second voltage range 12 is reached in two successive diagnoses.
  • the battery B is rated as worn out if the second voltage range 12 is repeatedly reached in the case of successive diagnoses, determined by a counter.
  • the counter value of the counter can be reset to its starting value by reaching the first voltage range 11, so that the counting for the repeated diagnosis begins again. Only when the defined meter reading is reached is the vehicle driver warned and / or the electric vehicle is put into the safe state (drive without function).
  • FIG. 5 is a schematic illustration for explaining a third one
  • FIG. 5 shows the third voltage curve 3 during the diagnosis D of a battery B, in particular in the case of a defective battery B.
  • a defined electrical consumer L is switched by the switching device SC into the NSP-BN of the electric vehicle.
  • the third course of tension 3 has a voltage drop within the diagnostic phase D. The voltage drop exceeds the first voltage range 11, as a predefined criterion for a functioning battery B, and the second voltage range 12, as a predefined criterion for a worn battery B. Due to the electrical load L applied, the voltage drops
  • Predefined criterion for a defective battery B After the electrical consumer L is switched off, the voltage of the battery B recovers and reaches the first voltage range 11.
  • the voltage drop in FIG. 5 represents an extreme drop, which suggests that the battery B can no longer provide the necessary electricity for the electrical consumer L. A defect for the battery B is thus determined. With a worn or defective battery B, the voltage drop is much greater than with an intact battery B. In addition, the recovery of the battery can take place more slowly.
  • a defective battery can, however, already have a limited voltage, so that the third voltage curve 3 can already lie in the second voltage range 12 when the electrical consumer L is applied.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

La présente invention concerne un procédé destiné à détecter un défaut d'une batterie (B) dans un réseau de bord à faible tension d'un véhicule électrique. Le procédé comprend l'étape consistant à appliquer (S1) un consommateur électrique (L) du véhicule électrique au réseau de bord à faible tension. Le procédé comprend en outre l'étape consistant à enregistrer (S2) une chute de tension résultante de la batterie (B) du réseau de bord à faible tension à l'aide d'un capteur de tension (V). Le procédé comprend en outre l'étape consistant à déterminer (S3) le défaut si la chute de tension enregistrée satisfait un critère prédéfini. La présente invention concerne de plus un dispositif destiné à détecter un défaut d'une batterie (B) dans un réseau de bord à faible tension d'un véhicule électrique.
PCT/EP2019/079083 2018-10-30 2019-10-24 Procédé et dispositif de détection d'un défaut d'une batterie dans un réseau de bord à faible tension d'un véhicule électrique WO2020089044A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018218579.4 2018-10-30
DE102018218579.4A DE102018218579A1 (de) 2018-10-30 2018-10-30 Verfahren und Vorrichtung zur Erkennung eines Defekts einer Batterie in einem Niederspannungsbordnetz eines Elektrofahrzeugs

Publications (1)

Publication Number Publication Date
WO2020089044A1 true WO2020089044A1 (fr) 2020-05-07

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PCT/EP2019/079083 WO2020089044A1 (fr) 2018-10-30 2019-10-24 Procédé et dispositif de détection d'un défaut d'une batterie dans un réseau de bord à faible tension d'un véhicule électrique

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WO (1) WO2020089044A1 (fr)

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Publication number Priority date Publication date Assignee Title
RU2753085C1 (ru) * 2020-12-09 2021-08-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский национальный исследовательский технический университет им. А.Н. Туполева - КАИ" Способ оценки технического состояния электрохимического источника тока и устройство, его реализующее

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010000679A1 (de) * 2010-01-05 2011-07-07 Robert Bosch GmbH, 70469 Verfahren zur Erkennung der Startfähigkeit
DE102014003309A1 (de) 2014-03-08 2014-09-18 Daimler Ag Schaltungsanordnung zum Überprüfen eines Betriebszustandes einer Batterie
DE102016200289A1 (de) * 2016-01-13 2017-07-13 Robert Bosch Gmbh Verfahren zur Diagnose eines elektrischen Energiespeichers und Diagnosevorrichtung für einen elektrischen Energiespeicher
KR101806705B1 (ko) * 2016-06-07 2017-12-07 현대자동차주식회사 차량의 배터리 열화 판단 방법 및 시스템

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010000679A1 (de) * 2010-01-05 2011-07-07 Robert Bosch GmbH, 70469 Verfahren zur Erkennung der Startfähigkeit
DE102014003309A1 (de) 2014-03-08 2014-09-18 Daimler Ag Schaltungsanordnung zum Überprüfen eines Betriebszustandes einer Batterie
DE102016200289A1 (de) * 2016-01-13 2017-07-13 Robert Bosch Gmbh Verfahren zur Diagnose eines elektrischen Energiespeichers und Diagnosevorrichtung für einen elektrischen Energiespeicher
KR101806705B1 (ko) * 2016-06-07 2017-12-07 현대자동차주식회사 차량의 배터리 열화 판단 방법 및 시스템

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