EP3894266A1 - Schaltungsanordnung für ein kraftfahrzeug, insbesondere für ein hybrid- oder elektrofahrzeug - Google Patents

Schaltungsanordnung für ein kraftfahrzeug, insbesondere für ein hybrid- oder elektrofahrzeug

Info

Publication number
EP3894266A1
EP3894266A1 EP19828226.1A EP19828226A EP3894266A1 EP 3894266 A1 EP3894266 A1 EP 3894266A1 EP 19828226 A EP19828226 A EP 19828226A EP 3894266 A1 EP3894266 A1 EP 3894266A1
Authority
EP
European Patent Office
Prior art keywords
voltage
battery
converter
charging connection
charging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19828226.1A
Other languages
German (de)
English (en)
French (fr)
Inventor
Moritz Haussmann
Christian Klöffer
Jan Philipp DEGEL
Jörg Weigold
Urs Boehme
Stefan Hähnlein
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.)
Mercedes Benz Group AG
Original Assignee
Daimler AG
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 Daimler AG filed Critical Daimler AG
Publication of EP3894266A1 publication Critical patent/EP3894266A1/de
Pending legal-status Critical Current

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
    • 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
    • B60L53/20—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 converters located in the vehicle
    • B60L53/22—Constructional details or arrangements of charging converters 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
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/007—Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of 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
    • B60L53/10—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
    • B60L53/11—DC charging controlled by the charging station, e.g. mode 4
    • 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
    • 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
    • B60L53/20—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 converters located in the vehicle
    • B60L53/24—Using the vehicle's propulsion converter for charging
    • 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
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/487—Neutral point clamped inverters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
    • H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
    • H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/28—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, 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
    • B60L2210/00—Converter types
    • B60L2210/30—AC to DC converters
    • 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
    • B60L2210/00—Converter types
    • B60L2210/40—DC to AC converters
    • 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
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/91—Electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/90—Vehicles comprising electric prime movers
    • B60Y2200/92—Hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2400/00—Special features of vehicle units
    • B60Y2400/61—Arrangements of controllers for electric machines, e.g. inverters
    • 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
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
    • 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 circuit arrangement for a motor vehicle, in particular for a hybrid or electric vehicle according to the preamble of patent claim 1.
  • the circuit arrangement has a high-voltage battery for storing electrical energy or electrical current.
  • the circuit arrangement also has at least one electrical machine for, in particular electrical, driving of the motor vehicle.
  • a converter is provided, by means of which high-voltage direct voltage that can be provided or provided by the high-voltage battery can be converted into high-voltage alternating voltage for operating the electrical machine.
  • the electrical machine can be operated with the high-voltage AC voltage which results from the high-voltage DC voltage in that the converter converts the high-voltage DC voltage into the high-voltage AC voltage.
  • the circuit arrangement comprises a charging connection for providing electrical energy for charging the high-voltage battery.
  • the high-voltage battery can be charged with electrical energy which is provided by the charging connection.
  • DE 10 2015 008 175 A1 discloses a circuit arrangement for charging a high-voltage battery in a motor vehicle, with a high-voltage battery train that has a series connection of battery cells that is electrically coupled between two load connection poles of a two-pole load connection, a first one using the high-voltage battery train High-voltage DC voltage can be provided at the load connection.
  • DE 10 2016 218 304 A1 also shows a device for voltage conversion with a converter which has three half bridges, each with four transistors. The
  • the device is also connected to a traction motor, a battery, a control unit and a charging connection and can be used in a method for charging the battery by means of an external DC voltage source.
  • the object of the present invention is to further develop a circuit arrangement of the type mentioned at the outset in such a way that the high-voltage battery can be charged particularly advantageously.
  • the converter is designed as a three-stage converter.
  • the converter has at least one switch unit which, in particular precisely, is assigned to a phase of the, for example, multiphase, in particular three-phase, electrical machine.
  • the switch unit is electrically connected or can be connected to the phase to which the switch unit is assigned.
  • the phase can, for example, be supplied with electrical energy or with a high-voltage alternating voltage resulting from the high-voltage battery that is or can be provided by the high-voltage battery and that is or can be provided by the converter via the switch unit assigned to the phase.
  • the switch unit has two switch groups connected in series to one another.
  • the respective switch group has two IGBTs connected in series with one another.
  • the IGBT is a bipolar transistor with an insulated gate electrode.
  • connection also referred to as a tap
  • the line can be flowed through by the electrical energy provided or can be provided by the charging connection for charging the high-voltage battery.
  • the electrical energy provided by the charging connection and used to charge the high-voltage battery can flow through the line
  • the converter has, for example, a first switching state, a second
  • the high-voltage battery also referred to simply as the battery, has, for example, at least one first battery segment and at least one second battery segment, the battery segments being connected or to be connected in series with one another, for example.
  • a first high-voltage DC voltage can be provided by means of the first battery segment, for example, a second high-voltage DC voltage can be provided by means of the second battery segment.
  • the first battery segment of the high-voltage battery is electrically connected or coupled to the charging connection via the three-stage converter, while the second battery segment is decoupled from the charging connection by means of the converter.
  • the first battery segment can be charged via the three-stage converter with electrical energy provided by the charging connection.
  • the second battery segment of the high-voltage battery is electrically connected to the charging connection via the three-stage converter
  • both the first battery segment and the second battery segment of the high-voltage battery are electrically connected to the charging connection via the three-stage converter, so that both the first battery segment and the second battery segment are connected via the three-stage converter electrical energy provided by the charging connection can be charged.
  • the charging connection can be electrically connected, for example, to an energy source external to the motor vehicle, such as, for example, a so-called charging station, in particular a DC charging station, also referred to as a DC charging station.
  • an electrical voltage provided by the energy source and configured, for example, as a high voltage, in particular electrical direct voltage and preferably an electrical high-voltage direct voltage are transmitted from the external energy source to the charging connection and are subsequently provided by the charging connection.
  • the energy source can provide electrical energy which can be transmitted to the charging connection and can thus be provided by the charging connection.
  • the high-voltage battery can be charged via the charging connection with the electrical energy provided by the external energy source.
  • the three-stage converter provided according to the invention makes it possible, in particular as a function of the
  • Power source provided electrical voltage, optionally the first
  • the third switching state is set.
  • the first battery segment and the second battery segment in particular the entire high-voltage battery, are electrically connected to the charging connection, so that the first battery segment and the second battery segment, in particular the entire high-voltage battery, simultaneously with that of the charging connection or via the charging connection electrical energy provided by the energy source can be charged.
  • the first switching state or the second switching state is set. This allows the first
  • Battery segment or the second battery segment are charged via the three-stage converter with the electrical energy provided by the energy source via the charging connection. It is preferably during one
  • the first switching state is initially set during a first part of the charging process.
  • the second switching state is set, for example, during a second charging process following the first part of the charging process.
  • the first switching state and the second switching state alternate several times during the charging process.
  • the first battery segment is Converter charged
  • the second battery segment is charged via the three-stage converter.
  • the battery segments are charged sequentially and, for example, several times during the charging process, so that the high-voltage battery as a whole is charged during the charging process. For example, while the first battery segment is being charged, the second battery segment is not being charged, and while the second battery segment is being charged, for example, the first is not being charged
  • provided electrical energy is less than the high-voltage DC voltage of the high-voltage battery.
  • the high-voltage direct voltage, the high-voltage alternating voltage and the aforementioned high voltage and a high voltage generally mean an electrical voltage which is greater than 50 volts, in particular greater than 60 volts.
  • The is preferably
  • Battery segments add up to the total high-voltage DC voltage of the high-voltage battery.
  • the respective high-voltage DC voltage of the respective battery segment is preferably 400 volts, it being preferably provided that the high-voltage DC voltage of the battery segments is the same.
  • the high-voltage direct voltage of the high-voltage battery is thus preferably 800 volts.
  • the three-stage converter used according to the invention makes it possible to charge the high-voltage battery both by means of such a charging infrastructure, which can provide electrical energy with 800 volts DC, and by means of such a charging infrastructure, which have electrical energy at 400 volts Can provide DC voltage.
  • the three-stage inverter also has a dual function.
  • a first function of the three-stage converter includes that the high-voltage battery can be charged via the three-stage converter in the manner described.
  • the battery segments can be charged individually or separately from one another via an intermediate voltage tap provided between them, in particular in the first switching state and in the second switching state. In the third switching state, the battery segments can be operated simultaneously or be loaded together.
  • a second function of the three-stage converter comprises that, for example, in motor operation and thus as an electric motor for
  • Electrical drive of the motor vehicle operated electrical machine is supplied with high-voltage AC voltage via the three-stage converter and by means of the
  • High-voltage AC voltage can be operated.
  • the three-stage converter converts, for example in a fourth switching state, the high-voltage DC voltage of the high-voltage battery provided by the high-voltage battery into the aforementioned high-voltage AC voltage, which is supplied by the three-stage converter, in particular in the fourth switching state is provided.
  • the three-stage converter operates in the fourth switching state as a three-stage inverter
  • the electrical machine in particular in the fourth switching state, can or will be supplied with the high-voltage alternating voltage provided by the three-stage converter
  • This double function of the three-stage converter means that the number of parts and the weight and cost of the circuit arrangement and thus of the motor vehicle as a whole can be kept particularly low.
  • Fig. 1 is a schematic representation of an inventive
  • Fig. 2 is a schematic representation of the circuit arrangement in a first
  • Fig. 3 is a schematic representation of the circuit arrangement in a second
  • Fig. 4 is a schematic representation of the circuit arrangement in a third
  • FIG. 1 shows a circuit arrangement 10 for a motor vehicle in a schematic illustration.
  • the motor vehicle has the circuit arrangement 10 in its completely manufactured state.
  • the motor vehicle is designed, for example, as a hybrid or preferably as an electric vehicle, in particular as a battery-electric vehicle.
  • the circuit arrangement 10 has a flochvolt battery 12, which is shown particularly schematically in FIG. 1 and is also simply referred to as a battery, for storing electrical energy or electrical current.
  • the circuit arrangement comprises at least one electrical machine 14, which, in particular exactly, has three phases u, v and w, the electrical machine 14 can be operated, for example, in motor operation and thus as an electric motor.
  • the electrical machine 14 is supplied with an electrical AC voltage, in particular with an electrical high-voltage AC voltage, via the phases u, v and w, in particular via the phase lines assigned to the phases u, v and w respectively
  • the circuit arrangement 10 also includes a converter 16, by means of which the high-voltage DC voltage that can be provided or provided by the high-voltage battery 12 can be converted into high-voltage AC voltage for operating the electrical machine 14.
  • the high-voltage battery 12 has a high-voltage DC voltage, which is, for example, 800 volts. This means that the high-voltage battery 12 can provide the high-voltage DC voltage.
  • the converter 16 converts the high-voltage DC voltage provided by the high-voltage battery 12 into high-voltage AC voltage, which is provided by the converter 16.
  • the high-voltage AC voltage provided by the converter 16 can be the electrical
  • Machine 14 in particular via the phase lines, are supplied so that the electrical machine 14, in particular the phase lines, with which the Power converter 16 provided high-voltage AC voltage can be supplied
  • the electrical machine 14 becomes as one by means of the high-voltage AC voltage provided by the converter 16
  • the motor vehicle can be driven electrically by means of the electric motor.
  • the circuit arrangement 10 has a charging connection 20.
  • the charging connection 20 can provide electrical energy, in particular with a high-voltage direct voltage, wherein the high-voltage battery 12 can be charged with the electrical energy provided by the charging connection 20. This means that from that
  • Charging connection 20 provided electrical energy is fed into the high-voltage battery 12 and can thus be stored in the battery.
  • FIG. 1 also shows, particularly schematically, an external one that is additionally provided with respect to the motor vehicle and thus with respect to the circuit arrangement 10
  • the charging station 22 can provide electrical energy with which the high-voltage battery 12 can be charged.
  • the charging station 22 can be electrically connected to the charging connection 20.
  • the electrical energy provided by the charging station 22 can be transmitted to the charging connection 20 and provided by the charging connection 20, so that the electrical energy provided by the charging station 22 can be transmitted via the
  • Charging port 20 can be transmitted to the high-voltage battery 12. As a result, the electrical energy provided by the charging station 22 can be stored in the battery.
  • the charging connection 20 has a line arrangement 18 with a first line 34 and a second line 36, through which the electrical energy that can be provided or provided by the charging connection 20 can flow.
  • the electrical energy which is provided by the charging station 22 and used to charge the battery, can flow or flow through the lines 34 and 36.
  • the charging connection 20 furthermore has a first contact 38, which is electrically connected to the line 34, and a second contact 40, which is connected to the line 36 and to which the charging station 22 can be electrically connected.
  • the electrical energy provided by the charging station 22 can thus be transmitted to the contacts 38, 40 and via the contacts 38, 40 into the lines 34 and 36 or into the charging connection 20 be fed.
  • the lines 34 and 36 and thus the charging connection 20 are electrically connected to the converter 16.
  • An optionally provided contactor 24, which comprises two switches 42 and 44, is arranged in the line arrangement 18.
  • the switch 42 is arranged in the line 34 and the switch 44 is arranged in the line 36.
  • the respective switch 42 or 44 can be switched between a respective open state and a respective closed state. For example, if the switch 42 is in its open state, the line 34 is interrupted, so that the contact 38 decouples from the converter 16
  • Converter 16 is decoupled or separated, in particular galvanically isolated. However, if the switch 44 is in its closed state, the line 36 is closed, as a result of which the contact 40 is electrically connected to the converter 16. A particularly safe operation can be achieved by using the contactor 24.
  • the converter is designed as a three-stage converter, the converter 16, in particular precisely, having three switch units 46, 48 and 50.
  • Switch unit 46 is assigned to phase u, switch unit 48 being assigned to phase v and switch unit 50 being assigned to phase w of electrical machine 14.
  • the electrical machine 14 is thus designed as a multi-phase, in particular as a three-phase, electrical machine.
  • switch unit 46 is electrically connected or connectable to phase u, switch unit 48 being electrically connected or connectable to phase v and switch unit 50 being connected to phase w.
  • the respective switch unit 46, 48 or 50 has, in particular exactly, two switch groups 52 and 54 or 56 and 58 connected in series
  • the switch group 52 has, in particular precisely, two IGBTs T1 1 and T12 connected in series.
  • the switch group 54 has, in particular precisely, two IGBTs T13 and T14 connected in series, the switch groups 52 and 54 being connected in series with one another.
  • the switch group 56 has two, in particular exactly two, IGBTs T21 and T22 connected in series with one another, and the switch group 58 has, in particular exactly, two in series with one another switched on IGBTs T23 and T24.
  • the switch group 60 has in particular exactly two IGBTs T31 and T32 connected in series with one another, and the switch group 62 has, in particular exactly two IGBTs T33 and T34 connected in series with one another.
  • a first connection 64 Arranged between the IGBTs T 11 and T12 of the switch group 52 is a first connection 64, also referred to as a first tap, which is electrically connected directly to the line 34 of the charging connection 20.
  • a second connection 66 also referred to as a second tap, is arranged between the IGBTs T23 and T24 of the switch group 58 and is electrically connected directly to the line 36 of the charging connection 20.
  • Connections 64 and 66 additionally provided connections, these additional connections 64 and 66 being connected directly to the charging connection 20. Additional separating elements are not required and are not provided.
  • the high-voltage battery 12 has at least two battery segments 28 and 30, which are connected to one another in series or series, for example.
  • the converter 16 is designed as a three-stage converter.
  • the three-stage converter is also referred to as a three-level inverter, which is integrated, for example, in the motor vehicle.
  • the converter 16 comprises individual IGBTs T1 1, T12, T13, T14, T21, T22, T23, T24, T31, T32, T33 and T34 (IGBT - bipolar transistor with insulated gate electrode - insulated-gate bipolar transistor).
  • IGBTs T1 1, T12, T13, T14, T21, T22, T23, T24, T31, T32, T33 and T34 IGBTs T1 1, T12, T13, T14, T21, T22, T23, T24, T31, T32, T33 and T34 (IGBT - bipolar transistor with insulated gate electrode - insulated-gate bipolar transistor).
  • Intermediate circuit 26 both by means of such charging stations, which provide electrical energy with a high-voltage DC voltage of 800 volts, and by means of such charging stations, which provide electrical energy with a high-voltage DC voltage of 400 volts.
  • the three-stage converter makes it possible to charge an intermediate circuit voltage of 800 volts with 400 volt charging stations and with 800 volt charging stations.
  • DC link voltage to be able to charge with an existing charging infrastructure, which can provide a maximum of 400 volts DC, is an additional one
  • the circuit arrangement 10 now makes it possible to charge the high-voltage battery 12, the high-voltage direct voltage of which is, for example, 800 volts, both by means of charging infrastructures which can provide 800 volts of direct voltage and by means of charging infrastructures which can provide a maximum of 400 volts of direct voltage.
  • the converter 16 designed as a three-stage converter is used for this purpose.
  • the converter 16 has a first switching state shown in FIG. 2 or can be operated in the first switching state shown in FIG. 2.
  • the charging station 22 provides, for example, electrical energy with a high-voltage DC voltage U1, which is 400 volts. It is in the first switching state
  • Battery segment 28 is electrically connected to the charging connection 20 via the converter 16, while the battery segment 30 is decoupled from the charging connection 20, in particular by means of the converter 16. As a result, the battery segment 28 is charged with the electrical energy provided by the charging station 22, while the battery segment 30 is not charged.
  • the converter 16 also has a second switching state shown in FIG. 3.
  • the charging station 22 likewise provides the electrical energy with the high-voltage DC voltage U1, which is 400 volts.
  • the battery segment 30 is electrically connected to the charging connection 20 via the converter 16, while the battery segment 28, in particular by means of the converter 16, is separated from the charging connection 20, in particular electrically isolated, or is decoupled. As a result, the battery segment 30 is charged with the electrical energy provided by the charging station 22.
  • FIG. 4 shows an exemplary embodiment in which the charging station 22 provides electrical energy with a high-voltage DC voltage U2.
  • the high-voltage DC voltage U2 is 800 volts.
  • the high-voltage DC voltage U2 thus corresponds to High voltage DC voltage of the battery.
  • both the battery segment 28 and the battery segment 30 are connected to the charging connection 20 via the converter 16, so that the battery segments 28 and 30 are connected via the
  • Power converter 16 are charged simultaneously with the electrical energy provided by the charging station 22.
  • the contactor 24 is closed in the first switching state, in the second switching state and in the third switching state, so that the charging connection 20 is electrically connected to the converter 16.
  • the charging connection 20 is, for example, a charging junction box to which both charging stations with 400 volts and charging stations with 800 volts can be connected.
  • the battery segments 28 and 30 are also referred to as blocks into which the battery is divided.
  • the respective block has a respective high-voltage DC voltage, which is, for example, 400 volts.
  • the high-voltage DC voltages of the blocks thus add up to the total high-voltage DC voltage of the battery.
  • the high-voltage DC voltages of the blocks are at least essentially the same.
  • a center tap 32 also referred to as an intermediate voltage tap, is provided.
  • the center tap 32 is, for example, electrically connected to a so-called neutral point of the three-stage converter.
  • the electrical energy or its electrical voltage that can be provided by the charging station 22 is also referred to as the charging voltage.
  • the IGBTs T22 and T23 are switched in order, for example, to electrically connect the charging connection 20 and, via this, the charging column 22 to the battery segment 28.
  • the battery segment 28 can be charged, in particular charged, with or to 400 volts.
  • the IGBTs T12 and T13 are switched and thus conductive. 4, the battery can be charged directly via the diodes with the charging column 22, the energy provided according to FIG. 4 being 800 volts.
  • the lines 34 and 36 can be connected directly to the converter 16, so that the lines 34 and 36 connect the Phase management of the phases u, v and w can bypass.
  • the lines 34 and 36 do not have to be connected to the phase line of the phases u, v and w, but the lines 34 and 36 are bypassing the phase lines of the phases u, v and w directly to the converter 16 and thereby to the Connections 64 and 66 electrically connected.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
EP19828226.1A 2018-12-14 2019-12-10 Schaltungsanordnung für ein kraftfahrzeug, insbesondere für ein hybrid- oder elektrofahrzeug Pending EP3894266A1 (de)

Applications Claiming Priority (2)

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DE102018009848.7A DE102018009848A1 (de) 2018-12-14 2018-12-14 Schaltungsanordnung für ein Kraftfahrzeug, insbesondere für ein Hybrid- oder Elektrofahrzeug
PCT/EP2019/084368 WO2020120446A1 (de) 2018-12-14 2019-12-10 Schaltungsanordnung für ein kraftfahrzeug, insbesondere für ein hybrid- oder elektrofahrzeug

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CN112737393A (zh) * 2021-01-25 2021-04-30 蔚来汽车科技(安徽)有限公司 用于电动汽车的电压转换装置方法及电驱动系统
DE102021003882A1 (de) 2021-07-27 2021-09-09 Daimler Ag Elektrisches Antriebssystem für ein Fahrzeug, sowie Verfahren zum Betreiben eines elektrischen Antriebssystems
DE102021003851A1 (de) 2021-07-27 2021-09-23 Daimler Ag Elektrisches Antriebssystem für ein Fahrzeugs, sowie Verfahren zum Betreiben eines entsprechenden elektrischen Antriebssystems
DE102021003852A1 (de) 2021-07-27 2021-09-23 Daimler Ag Elektrisches Antriebssystem für ein Fahrzeug und Verfahren zum Betreiben eines entsprechenden elektrischen Antriebssystems
DE102021003883A1 (de) 2021-07-27 2023-02-02 Mercedes-Benz Group AG Elektrisches Antriebssystem für ein Fahrzeug, Fahrzeug mit einem entsprechenden elektrischen Antriebssystem sowie Verfahren zum Betreiben eines entsprechenden elektrischen Antriebssystems
DE102022002607B8 (de) 2022-07-18 2023-10-19 Mercedes-Benz Group AG Fahrzeug mit einer elektrischen Schaltungsanordnung und zwei elektrischen Antriebseinheiten und Verfahren zu dessen Betrieb

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US20220032798A1 (en) 2022-02-03
DE102018009848A1 (de) 2019-06-27
CN113195297A (zh) 2021-07-30
WO2020120446A1 (de) 2020-06-18

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