WO2012052218A2 - Procédé de détection de manipulations dans le réseau haute tension de véhicules électriques et/ou hybrides - Google Patents

Procédé de détection de manipulations dans le réseau haute tension de véhicules électriques et/ou hybrides Download PDF

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Publication number
WO2012052218A2
WO2012052218A2 PCT/EP2011/065159 EP2011065159W WO2012052218A2 WO 2012052218 A2 WO2012052218 A2 WO 2012052218A2 EP 2011065159 W EP2011065159 W EP 2011065159W WO 2012052218 A2 WO2012052218 A2 WO 2012052218A2
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
battery
voltage network
vehicle
total
Prior art date
Application number
PCT/EP2011/065159
Other languages
German (de)
English (en)
Other versions
WO2012052218A3 (fr
Inventor
Stefan Soboll
Berengar Krieg
Andreas Heyl
Original Assignee
Robert Bosch Gmbh
Sb Limotive Company Ltd.
Sb Limotive Germany 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, Sb Limotive Company Ltd., Sb Limotive Germany Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2012052218A2 publication Critical patent/WO2012052218A2/fr
Publication of WO2012052218A3 publication Critical patent/WO2012052218A3/fr

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
    • 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
    • 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 for the detection of
  • High-voltage batteries in particular lithium-ion high-voltage batteries, as
  • BMS battery management system
  • High-voltage network of the vehicle done, for example, to increase the range of the vehicle.
  • Such manipulations may include, for example, the introduction of additional battery cells in the high-voltage network, z.
  • the additional cells usually have no own protection against battery hazards such as overvoltage, undervoltage, overcurrent and overtemperature.
  • the introduction of additional cells can also cause an external short circuit less well by the already existing monitoring of the
  • High-voltage network and possibly the entire vehicle are not designed for such additional cells, the safety of the high-voltage network and thus the entire vehicle can not be guaranteed.
  • a method is provided, which is a detection of manipulation in the high-voltage network of electric or
  • the method according to the invention is characterized by the steps:
  • High-voltage battery and at one or more locations in the external
  • Addition of additional battery cells changes the total voltage or the total current in a given high-voltage network. If additional battery cells are connected in series to the high-voltage battery of the vehicle, the high-voltage network, this leads to an increase in the total voltage in the external high-voltage network, while the total voltage of the high-voltage battery remains unchanged. Be additional battery cells parallel to the high-voltage battery the Added high-voltage network of the vehicle, this leads to an increase in the total current in the external high-voltage network, while the total current of the high-voltage battery remains unchanged.
  • the manipulation of an existing high-voltage network by adding battery cells can thus be determined by the fact that the total current and / or the total voltage of the known
  • High-voltage battery of the vehicle with a measured at another location, located in the external high-voltage network location measured total power and / or
  • Total voltage of the high-voltage network is adjusted. If a deviation is detected that exceeds a certain, previously defined threshold value, then a manipulation of the high-voltage network can be detected and, if necessary, countermeasures can be triggered.
  • the method according to the invention serves to detect manipulations in the high-voltage network of electric or hybrid vehicles.
  • the term "manipulation" includes in particular the addition of additional battery cells to the already existing high-voltage battery in the high-voltage network of the vehicle.
  • the additional battery cells can be present, for example, in series with the existing high-voltage battery of the vehicle or parallel to it in the high-voltage network.
  • Under electric and hybrid vehicles such vehicles are understood to have a high-voltage battery for at least partially supplying an electric drive for moving the vehicle. It does not matter if the vehicle next to the electric drive more
  • Devices for driving the vehicle has (for example, an additional
  • HEV electric hybrid vehicles
  • PHEV plug-in hybrid vehicles
  • the high-voltage network of an electric or hybrid vehicle comprises at least one
  • High-voltage battery an electric drive for moving the vehicle and lines for the functional connection of the high-voltage battery with the electric drive.
  • the high-voltage network can have other components and consumers.
  • Under a high-voltage battery is an electrochemical energy storage understood that can save energy by means of electrochemical processes and provide again when needed. Basically, that is suitable
  • Method according to the invention for high-voltage networks with a high-voltage battery of each accumulator or battery cell type is high-voltage networks with a high-voltage battery of the type of lithium-ion battery, in particular of the type Li-ion lithium-ion battery, LiPo lithium polymer battery,
  • LiFe Lithium Metal Battery Li-Mn Lithium Manganese Battery
  • High-voltage battery measured, ie the voltage or current across all cells of the high-voltage battery.
  • the total current and / or the total voltage in the high-voltage battery are measured immediately before or immediately after the main contactors of the high-voltage battery.
  • external high-voltage network refers to the entire high-voltage network of the vehicle excluding the existing ones
  • High-voltage battery Suitable devices for current or voltage measurement are known in the art. It is particularly advantageous if the total current is determined in the electric drive or the total voltage is measured.
  • the control unit for the electric drive regularly requires the voltage or the current value in the external high-voltage network for the control and torque monitoring of the electric drive.
  • the electric drive or the associated control device usually already comprises devices for measuring the total current and the total voltage in the external
  • the measurement data for the total current and / or the total voltage of the external high-voltage network from the control unit related to the electric drive can be done for example via a CAN bus.
  • Both the respective total current and the respective total voltage are preferably measured in the high-voltage battery and in the external high-voltage network.
  • a deviation between the measured values for the high-voltage battery and the measured values for the external high-voltage network is determined.
  • U ß att is the measured total voltage of the high-voltage battery.
  • UxHV is the total measured current in the external high-voltage network
  • Ißatt is the measured total current of the high-voltage battery.
  • a manipulation in the high-voltage network is then determined when the deviation exceeds a predetermined threshold.
  • the threshold S for both the voltage and the current could be at 0 and near 0, respectively.
  • the threshold for a specific high-voltage network topology should be determined and determined individually, so both wrong negative as well as false positive findings of manipulation by the
  • inventive method can be limited to a minimum.
  • the error rate of the method according to the invention can additionally be minimized by debugging errors and / or filtering the measured values.
  • a manipulation is only detected when the steps a) measuring the total current and / or the total voltage in the high-voltage battery and the external high-voltage network and b) determining a deviation between the measured values for the high-voltage battery and the external high-voltage network have been performed several times and more than one of the deviations determined thereby exceeds the threshold.
  • steps a) and b) have been carried out at least four times and that at least two of the deviations determined thereby exceed the threshold value.
  • steps a) and b) have been carried out at least four times and that at least two of the deviations determined thereby exceed the threshold value.
  • High-voltage network topology can be determined and determined without difficulty and without undue burden. It is also possible that through
  • the filtering leads to the fact that not even then a manipulation is determined, if only one, possibly coincidentally deviating measured value was determined.
  • the filtering may include, for example, measures such as the formation of average values from a plurality of measured values. It is also possible to achieve filtering by using a linear, time invariant transmission element which has a proportional transmission behavior with a 1st order lag, e.g. B. a PT member.
  • the inventive method in particular steps b) and c) or steps b), c) and d) of the method according to the invention, be performed by the battery management system of the vehicle.
  • the thus executed battery management system of the vehicle can be connected via a secure connection, eg. B. a CAN bus to be connected to the control unit of the electric drive of the vehicle, so that the measured values of the external high-voltage network can be obtained from the control unit of the electric drive and then processed in the battery management system.
  • the inventive method can as an additional step yet another
  • Countermeasures include in particular those measures which are suitable for averting danger or damage to the driver of the vehicle or other vehicle occupants and / or to avoid impairments or damage to the vehicle.
  • Such countermeasures preferably include disconnecting the high-voltage battery from the external one High-voltage network, requesting an emergency operation of the vehicle control and / or the issue of a warning message to the driver.
  • the method according to the invention is preferably carried out at least once each time the electric or hybrid vehicle is put into service.
  • the present invention also includes a battery management system which is designed and equipped such that it has means for carrying out the method according to the invention, in particular for carrying out method steps b) and c) or b), c) and d).
  • the subject of the present invention is also a battery comprising a battery management system according to the invention.
  • the invention also relates to an electric or hybrid vehicle, which is such a battery management system according to the invention or such

Landscapes

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

Abstract

L'invention concerne un procédé de détection de manipulations dans le réseau haute tension de véhicules électriques ou hybrides. Le procédé selon l'invention est caractérisé par les étapes suivantes : mesure du courant total et/ou de la tension totale dans la batterie haute tension et dans un ou plusieurs emplacements du réseau haute tension externe du véhicule, puis détermination d'un écart entre les valeurs mesurées pour la batterie haute tension et les valeurs mesurées pour le réseau haute tension externe, et enfin, reconnaissance d'une manipulation lorsque l'écart dépasse une valeur seuil prédéterminée.
PCT/EP2011/065159 2010-10-21 2011-09-02 Procédé de détection de manipulations dans le réseau haute tension de véhicules électriques et/ou hybrides WO2012052218A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010042748.9 2010-10-21
DE102010042748A DE102010042748A1 (de) 2010-10-21 2010-10-21 Verfahren zur Erkennung von Manipulationen im Hochvoltnetz von Elektro- und/oder Hybridfahrzeugen

Publications (2)

Publication Number Publication Date
WO2012052218A2 true WO2012052218A2 (fr) 2012-04-26
WO2012052218A3 WO2012052218A3 (fr) 2012-11-29

Family

ID=44675553

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/065159 WO2012052218A2 (fr) 2010-10-21 2011-09-02 Procédé de détection de manipulations dans le réseau haute tension de véhicules électriques et/ou hybrides

Country Status (2)

Country Link
DE (1) DE102010042748A1 (fr)
WO (1) WO2012052218A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108985392A (zh) * 2017-05-31 2018-12-11 重庆无线绿洲通信技术有限公司 电池箱身份信息获取方法、装置及电池管理方法、系统
CN113078719A (zh) * 2021-05-11 2021-07-06 中国煤炭科工集团太原研究院有限公司 矿用蓄电池组的识别方法和系统

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015201628A1 (de) * 2015-01-30 2016-08-04 Robert Bosch Gmbh Überwachung eines Batteriesystems während regeltechnisch bedingter Entprellzeiten
DE102015209654A1 (de) * 2015-05-27 2016-12-01 Volkswagen Aktiengesellschaft Notfahrmodus für ein Kraftfahrzeug
DE102015109168A1 (de) * 2015-06-10 2016-12-15 sonnen GmbH Batteriesystem für ein elektrisches Gebäudeenergieversorgungsnetz und Verfahren zur Überprüfung eines elektrischen Energiespeichers
DE102021201325A1 (de) * 2021-02-12 2022-08-18 Vitesco Technologies GmbH Verfahren zum Erkennen einer Manipulation einer Sensoreinheit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10028748B4 (de) * 2000-06-10 2009-06-04 Bayerische Motoren Werke Aktiengesellschaft Energieversorgungssystem für ein Kraftfahrzeug mit einem Niedrigspannungsbordnetz und mit einem Höherspannungsbordnetz
DE102005004328A1 (de) * 2005-01-31 2006-08-10 Robert Bosch Gmbh Vorrichtung zur Spannungsversorgung für sicherheitsrelevante Verbraucher
US7433794B1 (en) * 2007-07-18 2008-10-07 Tesla Motors, Inc. Mitigation of propagation of thermal runaway in a multi-cell battery pack

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108985392A (zh) * 2017-05-31 2018-12-11 重庆无线绿洲通信技术有限公司 电池箱身份信息获取方法、装置及电池管理方法、系统
CN113078719A (zh) * 2021-05-11 2021-07-06 中国煤炭科工集团太原研究院有限公司 矿用蓄电池组的识别方法和系统

Also Published As

Publication number Publication date
DE102010042748A1 (de) 2012-04-26
WO2012052218A3 (fr) 2012-11-29

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