[go: up one dir, main page]

EP3769095A1 - Procédé de surveillance d'un système d'alimentation d'un véhicule à moteur - Google Patents

Procédé de surveillance d'un système d'alimentation d'un véhicule à moteur

Info

Publication number
EP3769095A1
EP3769095A1 EP19714335.7A EP19714335A EP3769095A1 EP 3769095 A1 EP3769095 A1 EP 3769095A1 EP 19714335 A EP19714335 A EP 19714335A EP 3769095 A1 EP3769095 A1 EP 3769095A1
Authority
EP
European Patent Office
Prior art keywords
cable
sensor
charging
supply system
measurement
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Withdrawn
Application number
EP19714335.7A
Other languages
German (de)
English (en)
Inventor
Michael Frommberger
Sebastian GOSS
Bastian Hitz
Monika LENG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leoni Kabel GmbH
Original Assignee
Leoni Kabel 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 Leoni Kabel GmbH filed Critical Leoni Kabel GmbH
Publication of EP3769095A1 publication Critical patent/EP3769095A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/18—Cables specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
    • 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
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • 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
    • G01R31/08—Locating faults in cables, transmission lines, or networks
    • G01R31/11—Locating faults in cables, transmission lines, or networks using pulse reflection methods
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the invention relates to a method for monitoring an electrical supply system of a motor vehicle, in particular a high-voltage supply system of an electrically driven motor vehicle, having at least two components connected to one another via a cable, wherein the cable part of the supply system.
  • cables are subject to generally high mechanical or thermal stresses, for example, which can affect the functionality and performance characteristics of the cable as well as its service life.
  • the mechanical loads include mechanical stresses caused especially by vibrations, for example scouring of insulating material or also influencing electrical contact connections.
  • Thermal loads can arise, for example, in the region of hot (engine) components or else as a result of high currents.
  • Cables for a motor vehicle are usually designed in such a way that they can reliably withstand the expected loads for the intended service life. Typically, cables are therefore often oversized compared to the actual requirements.
  • the load is high not least even at high electrical power. Both an overdimension ning as well as an unforeseen failure of the cable should be avoided.
  • the object of the invention is to specify a method for monitoring a supply system of a motor vehicle, in particular a high-voltage supply system, in order to ensure reliable operation of the motor vehicle.
  • the object is achieved according to the invention by a method for monitoring a supply system of a motor vehicle, especially a high-voltage supply system with the features of claim 1.
  • Preferred Rotherbil applications are included in the dependent claims.
  • the supply system has at least two electrical components connected by a cable, the cable being part of the supply system.
  • the supply system further has a number of sensors which are designed to monitor at least one state variable of the supply system. The values of these state variables ascertained by the at least one sensor are evaluated in a suitable manner, and the functional capability of the supply system is deduced based on these determined values.
  • Supply system of a motor vehicle in the present case is understood to mean, in particular, a system (permanently) installed inside the vehicle which has the at least two components and the cable.
  • these are high-voltage and high-performance components, which are provided for an electric drive train for the ferry operation of the vehicle.
  • These high-performance components are, in particular, a power electronics component, an electric motor, in particular a drive motor for driving the vehicle and / or a battery.
  • This configuration is specifically characterized by continued monitoring during operation by the detection the sensor data allows continuous monitoring or monitoring at discrete intervals of the supply system. The recorded sensor data are thereby wise provided with a timestamp and stored. Historical data is then compared with currently acquired data and, for example, also compared with changes or a gradient of the changes and monitored. Based on this information, a statement about the current state and the current functionality of the supply system is determined and, in particular, a prognosis for the (residual) service life of the supply system.
  • the functionality of the supply system is understood to mean, in particular, that a statement is made about the entire system or about subcomponents thereof. It is concluded by the recorded sensor data on the functionality and quality especially of the electrical supply of the components. In addition, however, a statement about the state of the components based on the sensor data is preferably made. Thus, for example, an increased, e.g. consumption of a connected component (motor) caused by a defect can be detected by a temperature measurement on the cable.
  • the state variables are, for example
  • Mechanical parameters such as information on mechanical loads, such as bending, especially vibration, or
  • the senor itself is integrated in the cable.
  • the cable is an intelligent cable which itself acquires status data about the state variables.
  • a temperature in the cable is used, for example, based on the then a statement about the state of a component, such as a motor, or even about the state of a connector between the component and the cable is made.
  • the cable preferably has a line element into which a sensor signal is fed and an answer signal is evaluated.
  • the sensor signal is fed in by means of a suitable supply unit and the response signal is evaluated by an evaluation unit.
  • the feed unit and evaluation unit are typically arranged on the same side of the cable.
  • the feed unit is integrated, for example, in a plug of the cable or in a connected thereto supply unit.
  • the evaluation unit itself can be integrated in the feed-in unit or it can also be arranged remotely therefrom. In the latter case, the response signal, also referred to as a reflected signal, is transmitted to the evaluation unit.
  • the line element is a wire extending along the cable or a pair of wires or another electrical line element.
  • a propagation time measurement is preferably provided, for example in the form of a time domain reflectometry, TDR for short (Time Domain Reflectometry).
  • TDR time domain reflectometry
  • a measuring pulse is fed into the sensor wires and the voltage profile of the reflected signal component or response signal is evaluated.
  • a measuring method is preferably used, as described in the subsequently published WO 2018/086949 A1.
  • Their disclosure content, in particular their claims (with accompanying explanations) are hereby expressly included in the present application. Specifically, reference is made to claims 1, 2, 6, 7 and 12 with the associated versions specifically on pages 5/6 and 8/9.
  • a measurement signal (measurement pulse) is fed from the feed unit into the sensor wires per single measurement, wherein when exceeding a predetermined voltage threshold (at the feed) due to the reflected signal component, a stop signal is generated, wherein a transit time between the input of the measurement signal and the stop signal is determined, and wherein the voltage threshold value between the individual measurements is changed.
  • the feeding of the measuring pulse takes place, for example, according to a measuring or sampling frequency.
  • this method can be regarded as a voltage-discrete time measuring method.
  • the number of individual measurements is preferably more than 10, more preferably more than 20 or even more than 50 and, for example, up to 100 or even more individual measurements. From the large number of these individual measurements, a large number of stop signals are thus determined, which are arranged distributed over time.
  • the plurality of stop signals in conjunction with the threshold values therefore approximately represent the actual signal course of the injected measurement signal and the reflected components. Conveniently, from these stop signals, the actual signal profile for a fed-in and reflected at the power end measurement signal is approximated, for example by a mathematical Kurvenfit.
  • a respective individual measurement is preferably terminated on the basis of the measurement principle according to the invention, as soon as a stop signal has been issued.
  • a measured dead time is predetermined in a preferred embodiment after a first individual measurement during which the measuring arrangement is quasi deactivated and not on a stop signal responds. Specifically, it is provided that, after a first individual measurement and a detected first stop signal, a second individual measurement is made in which preferably the same threshold value is set as in the first individual measurement.
  • the measurement dead time within which no detection of a stop signal takes place, is (slightly) greater than the travel time between the start signal and the stop signal detected during the first individual measurement. This avoids that the reflected portion associated with the first stop signal is detected in the second individual measurement. This cycle is preferably repeated several times until no further stop signal is detected. That is to say, the test dead time is respectively adapted to the transit time of the (first, second, third, etc.) stop signal detected in the previous individual measurement, that is, selected to be slightly larger, until no further stop signal is emitted to this set threshold value.
  • a signal curve is measured by suitably setting the respective test dead time in combination with a variation of the threshold value. In particular, this also detects falling edges in the signal curve. Signal peaks with rising and falling edges can therefore be detected and evaluated.
  • the measuring principle is based on the fact that the propagation of the measuring signal within the line element depends on the state variables to be measured.
  • a temperature-dependent dielectric is used for the line element, so that the propagation speed changes as a function of the temperature.
  • Mechanical loads or even local thermal loads lead to a local change in the dielectric / line impedance, so that at the sen points a (partial) reflection of the measurement signal occurs, which is used for the evaluation. In this case, a localization of such an impurity is possible.
  • an external sensor is arranged outside the cable and is also provided for detecting a state variable.
  • the external sensor is arranged in addition to the internal sensor of the cable. In this respect, a double detection of sensor data is provided. Under external sensor is understood here that this is not integrated in the cable. At the same time, however, the external sensor is preferably positioned at or in the immediate vicinity of the supply system. In particular, it is arranged inside the vehicle.
  • the external sensor is preferably a vibration sensor for detecting vibrations, especially vibrations of components of the supply system.
  • vibrations especially vibrations of components of the supply system.
  • the unavoidable vibrations that occur during operation are a decisive mechanical load, which can lead to the impairment of electrical systems and also their functionality.
  • the vibration sensor is arranged for this purpose at a suitable location.
  • the vibration sensor is arranged in a connection region between the cable and at least one of the two connected components.
  • the connection is in particular a plug connection.
  • an external sensor is preferably arranged in addition to the sensor integrated in the cable. There are therefore sensor data of both the cable internal Sensor as well as the external sensor considered and evaluated to close on the current functioning of the supply system.
  • An external vibration sensor is preferably combined with a built-in cable sensor, such as temperature or bending sensor.
  • a built-in cable sensor such as temperature or bending sensor.
  • different state variables are detected by the external sensor and the internal sensor.
  • the same state variables are used with the two sensors, as shown in FIG. Temperature, recorded.
  • a measured value obtained from the integrated sensor is checked and verified on the basis of the measured value of the external sensor. It is therefore checked whether the data transmitted by the cable-internal sensor are plausible.
  • false diagoses are reduced by the cable-internal sensor.
  • a bending sensor integrated in the cable sensor and its data are compared with the movement data of the external sensor and verified whether the data is plausible.
  • comparison system For the evaluation of the obtained data and measured values, these are preferably compared with a comparison system and based on this comparison a statement about the functionality is made.
  • empirical values are stored, for example in tabular form, so that current state information is derived by comparison with the comparison system.
  • the comparison system is a mathematical model, which thus simulates the real system and describes it mathematically as a function of the variable state variables.
  • the comparison system is expediently integrated in an evaluation unit to which the measurement data are transmitted.
  • This evaluation unit is integrated, for example, in a control unit of the vehicle. Alternatively, however, it can also be used in a higher-level control center or even in a non-Z manufacturer of the Vehicle belonging organizational unit can be arranged.
  • the data contained by the sensors are transmitted to the manufacturer (supplier) of the cable or of the supply system, which in this way monitors the functioning of the supply system, in particular continuously during operation, in the sense of a service.
  • the state variables are detected in a plurality of supply systems, especially in different vehicles built supply systems of the same type and transmitted to this superior, common and thus central evaluation point and evaluation.
  • the collected data are preferably used for a modification of the comparison system. This allows continuous optimization and further development of the comparison system in order to improve the accuracy of the information.
  • At least one further, external data source such as e.g. a vehicle control, used and taken into account.
  • a further, external data source such as e.g. a vehicle control, used and taken into account. From this, for example, conclusions about the current state of the supply system can also be derived from the control commands and / or the measured data from the sensors are subjected to a plausibility check.
  • a method for monitoring a charging system of an electrically driven vehicle comprising a charging station, a charging cable, a battery as well as a number of sensors, based on the values determined by the sensors for the state variable is deduced on the functionality of the charging system.
  • At least one of the variables temperature, mechanical load (eg bending, vibration) and moisture are preferably monitored as state variables.
  • the charging cable is monitored for these variables. It is expedient to monitor several and in particular all of these three variables.
  • the method described here is not necessarily limited to use in the automotive sector.
  • it is also applied to electrical supply systems, for example in (industrial) plants, in which electrical components, in particular consumers, are supplied with energy via a cable.
  • the FIGURE shows a supply system 2 which has a first component 4, a second component 6 and a cable 8 connecting these two components 4, 6.
  • the first component is in particular a vehicle battery 4, in the case of the second component 6 in particular power electronics, such as an inverter and especially an electric motor 6, which is designed as a drive or drive motor for driving the electrically operable motor vehicle is.
  • the traction motor 6 is connected to a control unit 10 in connection.
  • the two components 4, 6 can furthermore have integrated monitoring units 12 which, for example, detect state variables of these in the components 4, 6, such as, for example, temperature, current current consumption or current output.
  • the cable 8 is over connections 14A, 14B on the one hand connected to the battery 2 and on the other hand to the electric motor 6. This may be, for example, connectors. Alternatively, the individual supply lines of the cable 8 are firmly contacted, for example by terminals, screw terminals, etc.
  • the cable 8 is generally a supply cable, which typically has a plurality of electrical supply wires, which is designed for power transmission of the required power between the battery 4 and the electric motor 6.
  • power of several 10 kW, typically more than 50 kW and typically more than 100 kW continue to be transmitted during operation.
  • Electric drive powers are often in the range between 100 and 200 kW.
  • electrical power of up to 500 kW or up to almost 1,000 kW is also transmitted.
  • the voltage for such systems is typically in the range of a few hundred volts.
  • a line element 16 hereinafter also referred to as a sensor line, is integrated into the cable 8.
  • the line element 16 is part of an integrated sensor 20 of the cable 8.
  • a discretely arranged sensor could also be arranged in the cable path 8 or at several points of the cable 8 ,
  • the sensor based on the line element 16 or the method for determining a value of a state variable, such as, for example, the temperature of the cable, is based on the fact that a measurement signal is fed into the line element 16 and a response signal is determined thereon.
  • the response signal is typically a reflected signal. This embodiment is based on the consideration that reflections within the cable (line element 16) occur and are rejected due to defects within the cable.
  • the measuring signal is fed by means of a feed unit 22.
  • the reflected signal runs back to the feed unit 22 and is for example selected there directly or transmitted to an evaluation unit 24. telt.
  • the feed unit 24 is integrated, for example, in a connector 14A.
  • a further, external sensor 26 is provided, which is designed as a vibration sensor. This is arranged at critical, vibration-loaded points, preferably in the connection region 14B to the second component 6 out. There occur operationally particular high-frequency vibrations, since the electric motor 6 is connected to a drive axle and thus vibrations are transmitted through contact with the road. The connection point to the battery 4, however, is less loaded.
  • a further vibration sensor can be arranged at a reference point, which serves as a reference base and as a comparison basis.
  • the evaluation unit 24 is designed to receive the sensor data, preferably both of the integrated sensor 20 and of the external sensor 26. The data of these sensors 20, 26 are detected as sensor data S.
  • further measurement data or information about the state variables are preferably acquired, which originate, for example, from further external sensors arranged outside the supply system or also from the monitoring units 12 or also from the control unit 10.
  • the relevant information is referred to as external data E transmitted to the evaluation unit 24.
  • the evaluation unit 24 determines the current functional status. Depending on the currentjanszu- state then the operation is controlled or regulated in a preferred embodiment, especially if a functional impairment has been determined, this is used for a current limit.
  • a prediction about the expected remaining life is taken.
  • the supply system 2 is designed as a charging system, in which case one of the two components 4, 6 represents a charging station and the other represents the motor vehicle battery 4.
  • the cable 8 is formed in this case as a charging cable.
  • the charging line is the warmest element in the charging system on the temperature side.
  • the mean line temperature of the charging cable and / or a localization of a hotspot are detected, for example.
  • a distinction is preferably made between heating from the inside (by high charging current) or heating from outside (for example, solar irradiation).
  • the internal temperature of the charging cable is preferably determined by the integrated sensor 20 and the externally acting temperature, preferably by the external sensor 26.
  • the senor in particular the integrated sensor 20, is designed for the detection of a fluid intrusion into the interior of the charging cable 8, which is due to a crack in the outer jacket (eg penetration of rainwater) or a crack of the inner cooling hoses (outlet of cooling liquid) and accordingly also detected by the evaluation.
  • a signal characterization is also preferably used to differentiate between the type of liquid.
  • a sensor is in turn formed, for example, as an integrated sensor 20 in the cable 8 with the line element 16 (sensor line) into which a measuring pulse is fed. Its spread is characteristically changed in the presence of the liquid.
  • a further or a combined sensor is integrated, which is able to detect mechanical influences.
  • the sensitivity of the sensor can be determined here be desired statement designed.
  • a change could be detected here from a permanent deformation (vehicle stands on the charging cable 8) to the dynamic detection of temporary bends (for example when plugged in).
  • a further external sensor 26 is preferably also provided in the charging system.
  • This is, for example, a temperature sensor, which is preferably mounted in or on a charging plug, via which the charging cable 8 is connected to an energy source or energy sink.
  • a link to the external sensor 26 and / or further data sources is undertaken.
  • this serves to check the plausibility of the signals generated by the internal sensor 20.
  • knowledge about further dependencies and their effects on the charging cable are detected and determined via the further data sources or external sensors 26. From this then again the statements for the functional ability, eg an output improved and specified, for example, by an adjustment of the comparison system described above.
  • a weather database for a currently prevailing ambient temperature is used as data sources.
  • a charge control zb in the charging station or in the vehicle is used as an additional data source, are used in the charging process via the current and voltage waveforms.
  • the charging system is preferably downshifted or switched off. That With the charging system, for example, the charging current is regulated as a function of the determined current state of the cable.
  • creeping effects are also preferably compensated with the comparison system and / or with historical measurement data from the sensors.
  • forecasts are preferably derived for the (residual) service life. This helps to ensure a smooth loading operation.
  • the monitoring of the supply system described here achieves both a high degree of operational safety and a high operational utilization of the supply system. Due to the particularly continuous monitoring, therefore, the entire supply system can be optimized and the safety margins in the structural design, such as conductor cross-sections ... can be reduced.
  • the high level of safety ensures, in particular with the charging cable, that the user never comes into contact with an overheated or mechanically damaged cable.
  • the charging processes can be optimized in order to achieve the highest possible degree of utilization for the operator (active control of charging and cooling processes).
  • an information exchange of the charging system is provided with other elements of a charging infrastructure.
  • an exchange of information between the supply network (energy supplier) - charging station - charging cable - motor vehicle (inlet box, HV cabling up to the battery) is provided.
  • the states of the lines are seen as essential, controlling elements, both in the supply network, the charging line or the on-board network of the vehicle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Secondary Cells (AREA)

Abstract

L'invention concerne un procédé de surveillance d'un système d'alimentation (2) d'un véhicule à moteur, notamment d'un système d'alimentation haute tension d'un véhicule à moteur à propulsion électrique, comprenant au moins deux composants électriques (4, 6) reliés par un câble (8), le câble (8) faisant partie du système d'alimentation (2) et, en outre, présentant un certain nombre de capteurs (20, 26) destinés à la surveillance d'au moins une variable d'état du système d'alimentation (2), les valeurs de la variable d'état déterminées par les capteurs (20, 26) permettant de déduire l'aptitude au fonctionnement du système d'alimentation (2).
EP19714335.7A 2018-03-19 2019-03-19 Procédé de surveillance d'un système d'alimentation d'un véhicule à moteur Withdrawn EP3769095A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018204182.2A DE102018204182A1 (de) 2018-03-19 2018-03-19 Verfahren zur Überwachung eines Versorgungssystems eines Kraftfahrzeugs
PCT/EP2019/056812 WO2019180002A1 (fr) 2018-03-19 2019-03-19 Procédé de surveillance d'un système d'alimentation d'un véhicule à moteur

Publications (1)

Publication Number Publication Date
EP3769095A1 true EP3769095A1 (fr) 2021-01-27

Family

ID=65991762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19714335.7A Withdrawn EP3769095A1 (fr) 2018-03-19 2019-03-19 Procédé de surveillance d'un système d'alimentation d'un véhicule à moteur

Country Status (5)

Country Link
US (1) US20210063457A1 (fr)
EP (1) EP3769095A1 (fr)
CN (1) CN111971567A (fr)
DE (1) DE102018204182A1 (fr)
WO (1) WO2019180002A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11376973B2 (en) * 2009-04-14 2022-07-05 Ford Global Technologies, Llc Method and system for monitoring temperature of a power distribution circuit
CN114097045B (zh) * 2019-07-25 2024-04-02 Abb电动汽车有限责任公司 用于为电动车辆充电的强电流充电电缆
CN115699509A (zh) * 2020-06-19 2023-02-03 韦斯特尔电子工业和贸易有限责任公司 用于确定充电电缆的环境风险的电子设备和充电电缆
KR20230032724A (ko) * 2021-08-31 2023-03-07 주식회사 엘지에너지솔루션 Tdr을 이용한 전지셀의 내부 결함 검출장치 및 방법
EP4309948A1 (fr) * 2022-07-18 2024-01-24 Flexifai Procédé et dispositif d'identification d'un type de véhicule électrique par une borne de recharge
DE102022121713A1 (de) 2022-08-26 2024-02-29 Compleo Charging Solutions Ag Betriebsverfahren für eine Versorgungsstation und Verwendung eines Temperatursensors als Diebstahlindikator
CN116749810A (zh) * 2023-06-30 2023-09-15 北京嘀嘀无限科技发展有限公司 一种控制放电的方法、装置、设备和介质
DE102023211665A1 (de) * 2023-11-23 2025-05-28 Zf Friedrichshafen Ag Bordnetz

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3371611B1 (fr) * 2016-11-11 2020-12-30 LEONI Kabel GmbH Procédé et système de mesure servant à la surveillance d'une ligne

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4304545C2 (de) * 1993-02-11 1998-10-01 Felten & Guilleaume Energie Kabel mit Lichtwellenleitern
DE102004041008A1 (de) * 2004-01-09 2005-08-18 Alcoa Fujikura Gesellschaft mit beschränkter Haftung Elektrisches Versorgungsnetzwerk
WO2012051510A2 (fr) * 2010-10-14 2012-04-19 Gregory Thomas Mark Connexion électrique à refroidissement actif
DE102010042750A1 (de) * 2010-10-21 2012-04-26 Siemens Aktiengesellschaft Verfahren und Vorrichtung zum Erkennen eines Kurzschlusses
DE102012103208A1 (de) * 2012-04-13 2013-10-17 Keba Ag Verfahren zum Betreiben einer Ladeanschlussvorrichtung für Elektrofahrzeuge sowie entsprechende Ladeanschlussvorrichtung
DE102012019996A1 (de) * 2012-10-12 2014-04-17 Leoni Bordnetz-Systeme Gmbh Leitungsnetz, insbesondere Gleichspannungs-Bordnetz für ein Kraftfahrzeug sowie Verfahren zur Überwachung eines Leitungsnetzes auf das Entstehen eines Lichtbogens
DE102013211697A1 (de) * 2013-06-20 2014-12-24 Robert Bosch Gmbh Sensoreinheit für ein Fahrzeug
DE102013227051B4 (de) * 2013-12-20 2017-03-30 Leoni Kabel Holding Gmbh Messanordnung und Verfahren zur Temperaturmessung sowie Sensorkabel für eine derartige Messanordnung
DE102014016825B4 (de) * 2014-11-13 2023-06-29 Audi Ag Kraftfahrzeug-Ladedose mit Überhitzungsschutz
DE102015226223A1 (de) * 2015-12-21 2017-06-22 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung und Verfahren zur Überprüfung eines Ladekabels
DE102016210601A1 (de) * 2016-06-15 2017-12-21 Leoni Kabel Gmbh Verfahren zur Überwachung einer Leitung und Messanordnung mit einer Leitung
DE102016224103A1 (de) * 2016-12-05 2018-06-07 Leoni Kabel Gmbh Stromversorgungssystem, Versorgungsleitung und Verbindungskabel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3371611B1 (fr) * 2016-11-11 2020-12-30 LEONI Kabel GmbH Procédé et système de mesure servant à la surveillance d'une ligne

Also Published As

Publication number Publication date
DE102018204182A1 (de) 2019-09-19
WO2019180002A1 (fr) 2019-09-26
CN111971567A (zh) 2020-11-20
US20210063457A1 (en) 2021-03-04

Similar Documents

Publication Publication Date Title
EP3769095A1 (fr) Procédé de surveillance d'un système d'alimentation d'un véhicule à moteur
EP3126181B1 (fr) Procédé de contrôle d'une connexion entre un réseau basse tension et une batterie, et véhicule automobile
DE102015202782A1 (de) Verfahren zum Betreiben einer Sensorvorrichtung und Sensorvorrichtung
DE102010045514B4 (de) Verfahren zum Überwachen eines elektrischen Energiespeichers, der eine elektrische Spannung für eine elektrische Maschine eines Kraftwagens bereitstellt
DE102016224541A1 (de) Sicherheitsverfahren und Sicherheitsvorrichtung
DE102004018578B4 (de) Verfahren und Vorrichtung zur Erfassung eines Verschmutzungsgrades eines betriebenen Umrichtergerätes
WO2019179565A1 (fr) Ensemble de mesure et procédé pour surveiller un système d'alimentation électrique
EP1468863B1 (fr) Dispositif et procédé de contrôle d'une batterie éléctrique dans un submersible
EP2437228B1 (fr) Alarme, installation d'alarme et procédé de reconnaissance d'erreurs de lignes de transmission
EP3765317B1 (fr) Procédé servant à surveiller une installation de climatisation, dispositif de surveillance et installation de climatisation
WO2019077093A1 (fr) Procédé et système destinés à évaluer un état de fonctionnement d'un véhicule nautique
EP1423717B1 (fr) Procede et dispositif pour realiser a bord un diagnostic d'un reseau de bord d'une automobile
DE102020007246A1 (de) Verfahren zum Kalibrieren eines ersten Isolationswächters eines elektrischen Bordnetzes, sowie elektrisches Bordnetz
WO2021018712A1 (fr) Procédé d'un véhicule et d'un serveur de réseau pour la maintenance de composants de véhicule
WO2010000247A2 (fr) Procédé et dispositif de mesure de la température dans une ligne ou un faisceau de lignes, et véhicule équipé d'un tel dispositif
WO2009000817A2 (fr) Dispositif de stockage d'énergie et procédé d'exploitation correspondant
WO2015074838A1 (fr) Système de transfert d'énergie et procédé de diagnostic d'un système de transfert d'énergie
DE102012206836A1 (de) Verfahren zur Prognose eines Fehlers oder zur Fehlererfassung in einer Transportmaschine sowie Transportmaschine
DE102006013911A1 (de) Verfahren zur Prüfung elektrischer Verbraucher durch Bewertung eines Spannungsverlaufs unter schnell wechselnder Last
WO2022223183A1 (fr) Système d'alimentation électrique embarqué pour véhicule
DE102006043419B4 (de) Verfahren und Strommesseinrichtung zur Ermittlung eines Ruhestroms eines Bordnetzes eines Kraftwagens während der Kraftwagenherstellung oder einer Kraftwagenwartung
DE102018212565B3 (de) Hochvoltbatterie mit Überwachungseinrichtung sowie Kraftfahrzeug
DE102021115839A1 (de) Bestimmen eines Degradationszustands eines elektrischen Stromversorgungspfads
DE102012020438A1 (de) Verfahren zur Prüfung einer elektrischen Verbindung zwischen zwei Energiespeichereinheiten einer Batterieanordnung und Batterieanordnung
EP4270024A1 (fr) Système de capteur pour une machine électrique

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20201009

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FROMMBERGER, MICHAEL

Inventor name: GOSS, SEBASTIAN

Inventor name: HITZ, BASTIAN

Inventor name: LENG, MONIKA

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20230421

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20230902