WO2012019666A2 - Groupe moteur de véhicule automobile comprenant un dispositif de charge - Google Patents

Groupe moteur de véhicule automobile comprenant un dispositif de charge Download PDF

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Publication number
WO2012019666A2
WO2012019666A2 PCT/EP2011/002886 EP2011002886W WO2012019666A2 WO 2012019666 A2 WO2012019666 A2 WO 2012019666A2 EP 2011002886 W EP2011002886 W EP 2011002886W WO 2012019666 A2 WO2012019666 A2 WO 2012019666A2
Authority
WO
WIPO (PCT)
Prior art keywords
drive system
motor vehicle
vehicle drive
charging device
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.)
Ceased
Application number
PCT/EP2011/002886
Other languages
German (de)
English (en)
Other versions
WO2012019666A3 (fr
Inventor
Jörg HUBER
Michael Hofmann
Axel Willikens
Volker Hartmann
Wolfgang Wondrak
Steffen Hahlbeck
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 WO2012019666A2 publication Critical patent/WO2012019666A2/fr
Publication of WO2012019666A3 publication Critical patent/WO2012019666A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • 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
    • 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
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/50—Structural details of electrical machines
    • B60L2220/54—Windings for different functions
    • 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
    • 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 motor vehicle drive system with a charging device for charging a rechargeable battery device by means of an external power supply according to the preamble of claim 1.
  • the invention is in particular the object of providing a motor vehicle drive system with a high flexibility for charging via the charging device. It is achieved according to the invention by the features of claim 1. Further embodiments emerge from the subclaims.
  • the invention is based on a motor vehicle drive system with a charging device which is provided for charging a battery device by means of an external power network and which has at least one multi-phase rectification circuit, which is intended to convert an AC voltage of the external power network into a DC voltage.
  • the charging device has a switching unit which is provided to switch the rectification circuit optionally for a single-phase charging operation or a multi-phase charging operation.
  • the charging device can be advantageously operated with different external power networks, whereby a motor vehicle drive system with a high flexibility for charging via the charging device can be provided.
  • An “external power grid” is intended to In particular, a separate from the drive system power grid, such as in particular a public utility network, are understood.
  • a “multiphase rectification circuit” is to be understood in particular as a rectifier circuit having at least two, preferably three phases.
  • Multiphase charging operation is to be understood in particular as an operating mode in which at least two phase inputs of the charging device have an input potential shifted from a neutral potential is applied.
  • a “single-phase charging operation” should be understood to mean, in particular, an operating mode in which only one of the phase inputs has a potential shifted from the neutral potential.
  • "Provided” is to be understood to mean in particular specially programmed, equipped and / or designed.
  • the switching unit is intended to switch over automatically.
  • the term "automatically switch over” is to be understood in particular to mean that the switching unit is provided in at least one operating mode to independently detect a concern of a single-phase external voltage or a multiphase external voltage and to automatically close a switching element of the switching unit as a function of the detected external voltage ,
  • the charging device preferably has at least two phase inputs and at least one neutral conductor input, and the switching unit comprises at least one switching element which is provided to connect one of the phase inputs and the neutral conductor input to one another.
  • the rectification circuit can have a particularly simple layout, since, in particular, it is possible to dispense with an elaborate changeover of the rectification circuit.
  • a phase input is to be understood as meaning, in particular, a contact element of the charging device which, at least in a multi-phase charging operating mode, has a potential which is shifted with respect to a neutral potential.
  • a neutral input is to be understood in particular as a contact element defining the neutral potential.
  • the charging device further comprises a ground input, wherein advantageously the neutral potential and a ground potential are equal at least in a normal operation.
  • the motor vehicle drive system comprises a drive machine with at least two motor coils, wherein the at least two phase inputs and the at least two motor coils are individually connected electrically in series.
  • This allows a simple connection of the charging device to a power electronics be achieved.
  • another connection of the phase inputs to the motor coils is conceivable, in particular a connection to a neutral point of the drive machine.
  • the motor vehicle drive system has power electronics with at least one inverter circuit which is formed at least partially in one piece with the rectification circuit of the charging device.
  • the inverter circuit is used to rectify an AC voltage fed from the external power grid.
  • the motor vehicle drive system has a power factor correction circuit which is at least partially embodied in one piece with the inverter circuit.
  • a complexity of the charging device can be further reduced.
  • at least one switching element of the inverter circuit is provided in a charging mode for a power factor correction of the charging device.
  • the power factor correction circuit is at least partially embodied in one piece with the drive machine.
  • a power factor of the charging device can be advantageously set without having to provide a separate power factor correction switching.
  • the motor coils are used to adjust the power factor correction.
  • the inverter circuit is designed as a 3-level inverter circuit.
  • requirements for a dielectric strength of individual components of the inverter circuit can be reduced.
  • an efficiency of the inverter circuit can be increased.
  • a "3-level interconnection" is to be understood as meaning, in particular, an inverter circuit to which at least three different potentials are applied or can be tapped off.
  • the motor vehicle drive system has at least one mains discharge capacitor. This can in particular repercussions on the external power grid can be reduced, whereby, for example, protection against accidental tripping of safety device of the external power network can be increased.
  • a “line bypass capacitor” should be understood to mean, in particular, a capacitor which is connected between at least one potential-carrying conductor in at least one operating state, in particular a phase, and at least one potential-free conductor in a controlled operation, in particular a neutral conductor or a protective conductor,
  • a "protective conductor” should be understood to mean, in particular, a conductor which defines a zero potential, in particular a conductor earthed via the external power network.
  • potential-free should be understood to mean, in particular, potential-free with respect to the protective conductor.
  • a neutral conductor is to be understood as meaning, in particular, a potential-free conductor in a control mode.
  • a "phase” should in particular be understood to mean a conductor which, in a closed-loop operation, has a potential with respect to the neutral conductor.
  • the charging device has a monitoring unit which is provided to monitor at least one external network and / or charging parameter.
  • characteristics are to be understood in particular as parameters which are predetermined by the external power network, such as, for example, a mains voltage of the external power grid or an alternating frequency of the external power grid.
  • Device characteristics are understood to mean in particular parameters determined by the charging device be such as a charging current, a fault current or an insulation fault of the charging device.
  • FIG. 1 shows a first part of a circuit diagram for a first embodiment of a drive system according to the invention
  • Fig. 2 shows a second part of the circuit diagram of the first embodiment
  • FIG. 3 is a circuit diagram of a second drive system according to the invention.
  • Figures 1 and 2 show a circuit diagram for a first embodiment of a motor vehicle drive system according to the invention.
  • FIG. 1 shows a first part of the circuit diagram.
  • FIG. 2 shows a second part of the circuit diagram.
  • Connecting points at which the two parts are connected to each other are identified in the two figures by identical capital letters A, B, C, D, E, F.
  • the motor vehicle drive system is basically provided for different drive systems. By means of the motor vehicle drive system, both purely electric drive systems and hybrid drive systems are formed.
  • the illustrated embodiment is formed as a purely electric drive system.
  • the drive system comprises an electric drive machine 19a, a battery device 11a and a charging device 10a for charging the battery device 11a by means of an external power network.
  • the prime mover 19a is formed as a three-phase motor.
  • the prime mover 19a comprises three motor coils 20a, 21a, 22a.
  • the prime mover 19a comprises three separate phases 28a, 29a, 30a.
  • the prime mover 19a In a drive mode, the prime mover 19a generates a drive torque from an electric power supplied thereto.
  • the engine 9a In a generator operating mode, the engine 9a generates electric power from a mechanical power supplied thereto, which can be supplied to the engine 19a via drive wheels, for example.
  • the battery device 11a includes a high-voltage battery.
  • the battery device 11a provides a DC voltage that is at least 100 volts.
  • the high-voltage battery comprises a plurality of individual cells connected in series.
  • a minimum battery voltage is 105.6 volts.
  • a maximum battery voltage is 413 volts, whereby the maximum battery voltage can also be larger.
  • the battery device 11a has two battery terminals 31a, 32a, each forming a defined pole of the battery device 11a.
  • the drive system comprises power electronics 23a.
  • the power electronics 23a comprises an inverter circuit 24a with two conductors 33a, 34a, which are each connected to one of the battery terminals 31a, 32a of the battery device 11a.
  • the inverter circuit 24a is formed by means of three half-bridges 35a, 36a, 37a. Each of the three half bridges 35a, 36a, 37a is electrically connected to one of the motor coils 20a, 21a, 22a of the prime mover 19a.
  • the half-bridges 35a, 36a, 37a are each arranged between the two conductors 33a, 34a.
  • Each half-bridge 35a, 36a, 37a comprises two switching elements 38a, 39a and two freewheeling diodes arranged parallel to the switching elements 38a, 39a.
  • the freewheeling diodes of a half-bridge are arranged opposite.
  • the motor coils 20a, 21a, 22a of the prime mover 19a are connected to a bridge point of the respective half bridge 35a, 36a, 37a.
  • the switching elements of the half bridges 35a, 36a, 37a are formed as transistors.
  • the inverter circuit 24a In the driving mode, the inverter circuit 24a generates an AC voltage from the DC voltage of the battery device 11a.
  • the AC voltage generated by the inverter circuit 24a defines a power output by the prime mover 19a.
  • a rotational speed which has the prime mover 19 a, adjustable.
  • the AC voltage is applied as a three-phase current to the motor coils 20a, 21a, 22a of the prime mover 19a.
  • the inverter circuit 24a converts the AC voltage generated by the engine 19a into a DC voltage.
  • the inverter circuit 24a acts as a step-up converter, which converts the AC voltage provided by the drive machine 19a into a higher DC voltage. In principle, however, the inverter circuit 24a can also be operated without a step-up operation.
  • the DC voltage to which the inverter circuit 24a converts the AC voltage generated by the engine 19a causes charging of the battery device 11a.
  • the charging device 10a is partially formed integrally with the inverter circuit 24a.
  • the charging device 10a comprises a polyphase rectification circuit 12a, which converts an AC voltage to a DC voltage.
  • the charging device 10a comprises three phase inputs 14a, 15a, 16a and phases 42a, 43a, 44a connected to the phase inputs 14a, 15a, 16a, a neutral input 17a and a neutral conductor 45a connected to the neutral input 17a, and a protective conductor input 46a and one to the protective conductor input 46a subsequent protective conductor 47a.
  • the three phase inputs 14a, 15a, 16a are provided for a three-phase current.
  • the neutral input 17a is substantially floating with respect to a ground potential.
  • a current flowing through the neutral conductor 45a is zero in a proper control operation.
  • the protective conductor 47a connected to ground via the external power network defines the grounding potential.
  • the charging device 10a is connected to the battery device 11a via the inverter circuit 24a.
  • the phases 42a, 43a, 44a of the charging device 10a are each connected via one of the motor coils 20a, 21a, 22a to one of the phases 28a, 29a, 30a of the prime mover 19a.
  • the individual phases 42a, 43a, 44a of the charging device are thus each connected to one of the half bridges 35a, 36a, 37a of the inverter circuit 24a.
  • the rectification circuit 12a is integrally formed with the inverter circuit 24a.
  • the phase 42a is thus connected in the charging operating mode to the bridge point of the half-bridge 35a.
  • the freewheeling diodes 40a, 41a of the half bridge 35a form a rectifying circuit for the phase 42a with respect to the bridge point.
  • the two further half bridges 36a, 37a are connected correspondingly with respect to the phases 43a, 44a.
  • An alternating voltage applied to the three phases 42a, 43a, 44a in the charging operating mode is thus converted into a DC voltage applied to the conductors 33a, 34a.
  • the charging device 10a comprises a power factor correction circuit 25a connected to the rectification circuit 12a.
  • the power factor correction circuit 25a is partially integral with the inverter circuit 24a and partially formed integrally with the prime mover 19a.
  • the motor coils 20a, 21a, 22a of the prime mover 19a each form an inductance for the power factor correction circuit 25a.
  • the half bridges 35a, 36a, 37a of the inverter circuit 24a respectively form a switching element for the power factor correction circuit 25a.
  • the switching elements 38a, 39a of the half bridge 35a are provided for the phase 42a.
  • the switching elements of the further half-bridges 36a, 37a are provided analogously for the phases 43a, 44a.
  • the vehicle drive system has an operation mode switching device 48a.
  • the operation mode switching device 48a comprises three switching elements 49a, 50a, 51a, which are respectively associated with the individual phases 28a, 29a, 30a of the prime mover 19a.
  • the operation mode switch 48a connects the phases 42a, 43a, 44a of the charger to the phases 28a, 29a, 30a of the prime mover 19a.
  • the switching elements 49a, 50a, 51a respectively connect exactly one of the phases 42a, 43a, 44a to one of the phases 28a, 29a, 30a in the charging operating mode.
  • the operation mode switching device 48a connects the three Phases 28a, 29a, 30a of the prime mover 19a with each other.
  • the motor coils 20a, 21a, 22a, which are connected to the phases 28a, 29a, 30a of the prime mover 19a, are thus connected together at a star point 52a.
  • the three switching elements 49a, 50a, 5a of the operation mode switching device 48a individually connect the phases 28a, 29a, 30a of the prime mover 19a to the star point 52.
  • the operation mode switching device 48a thus forms a neutral contactor by means of which the prime mover 19a can be switched without load independently of an operating state of the charging device 10a and independently of the inverter circuit 24a.
  • the charging device 10a For adjusting the DC voltage applied to the two conductors 33a, 34a and the battery terminals 31a, 32a, the charging device 10a comprises a voltage converter 53a arranged after the inverter circuit 24a.
  • the voltage converter 53a is bidirectional, i. both for a power flow from the inverter circuit 24a to the battery device 11a and for a power flow from the battery device 11a to the inverter circuit 24a.
  • the voltage converter 53a is for the charging device 10a, i. for charging the battery device 11a by means of the external power network, and for the power electronics 23a, i. for operating the engine 19a by means of the battery device 11a provided.
  • the voltage converter 53a is electrically connected in series with the inverter circuit 24a.
  • the voltage converter 53a is disposed between the inverter circuit 24a and the battery device 11a.
  • the voltage converter 53a includes a coil 55a and a capacitor 56a.
  • the voltage converter 53a comprises a switching unit 54a with two switching elements and a diode unit 57a with two diodes.
  • the capacitor 56a is disposed between the conductors 33a, 34a of the inverter circuit 24a.
  • the switching unit 54a and the diode unit 57a form a half bridge in terms of circuitry.
  • the coil 55a which is incorporated in the conductor 33a, is connected to a bridge point of the half-bridge formed by the switching unit 54a and the diode unit 57a.
  • the charging device 10a and the power electronics 23a have a sufficiently high dielectric strength of, for example, 1200 volts.
  • the rectification circuit 12a which is formed integrally with the inverter circuit 24a, is designed for this withstand voltage.
  • the voltage converter 53a in particular in the charging operation mode, converts the DC voltage applied to the conductors 33a, 34a into a lower charging voltage.
  • the charging voltage which is also a DC voltage, is adjustable via the voltage converter 53a.
  • a dielectric strength of the components arranged after the voltage converter 53a can generally be lower than the dielectric strength of the charging device 10a and the power electronics 23a.
  • the charging device 10a comprises a filter unit 58a.
  • the filter unit 58a forms an EMC filter.
  • the filter unit 58a comprises a coil-capacitor unit with a plurality of paired capacitors and coils.
  • the coil-capacitor unit forms a low-pass filter for each phase 42a, 43a, 44a of the charging device 10a.
  • a cutoff frequency above which the filter unit 58a attenuates is greater than a maximum expected network frequency of the external power grid.
  • the charging device 10a further comprises a suppressor unit 59a with a line bypass capacitor 26a.
  • the power dissipation capacitor 26a is classified as a y-capacitor.
  • the interference suppression unit 59a comprises three x capacitors 60a, 61a, 62a.
  • the x-capacitors 60a, 61a, 62a are each connected in pairs between the three phases 42a, 43a, 44a of the charging device 10a. Two each of the x-capacitors 60a, 61a, 62a are connected in series with respect to two of the phases 42a, 43a, 44a.
  • the three x capacitors 60a, 61a, 62a are electrically connected to one another via a common contact point.
  • the line bypass capacitor 26a is connected to the common contact point of the x-capacitors 60a, 61a, 62a.
  • the power dissipation capacitor 26a is thus connected between the three phases 60a, 61a, 62a and the neutral conductor 45a of the charger 10a.
  • the suppressor unit 59a comprises a capacitor 63a which is connected between the neutral conductor 45a and the protective conductor 47a.
  • the power electronics 23a comprises a link 64a.
  • the intermediate circuit 64a comprises a capacitor which is arranged between the two conductors 33a, 34a of the inverter circuit 24a.
  • the power electronics 23a comprises two further power dissipation capacitors 27a, 65a, which are also classified as y capacitors.
  • the mains discharge capacitors 27a, 65a of the charging device 10a are arranged after the intermediate circuit 64a.
  • the power dissipation capacitor 27a is disposed between the conductor 33a and the protective conductor 47a.
  • the power dissipation capacitor 65a is disposed between the conductor 34a and the protective conductor 47a.
  • the charging device 10a further comprises a monitoring unit 66a.
  • the monitoring unit 66a is connected to the three phases 42a, 43a, 44a, the neutral conductor 45a and the protective conductor 47a.
  • the monitoring unit 66a monitors voltages which occur at the phases 42a, 43a, 44a, the neutral conductor 45a and the protective conductor 47a.
  • it monitors electrical currents flowing through the phases 42a, 43a, 44a the neutral conductor 45a and the protective conductor 47a.
  • the monitoring unit forms an insulation monitor, which in particular has an insulation resistance of the Phases determined against the protective conductor.
  • the insulation resistance is shown in FIG. 1 as an equivalent resistance together with a replacement capacitor replacing line capacitances in an equivalent circuit 67a.
  • the charging device 10a For switching between a single-phase charging operation and a three-phase charging operation, the charging device 10a comprises a switching unit 13a.
  • the switching unit 13a comprises a switching element 18a, which is provided to connect the neutral conductor 45a of the charging device 10a to one of the phases 42a, 43a, 44a.
  • the switching unit 13a is formed automatically. If the switching unit 13a detects a single-phase AC voltage applied to the phase inputs 14a, 15a, 16a and the neutral conductor input 17a, it automatically closes the switching element 18a and connects the neutral conductor 45a to the phase 44a. In the case of a single-phase AC voltage applied to the charging device 10a, two of the three phase inputs 14a, 5a, 6a are essentially potential-free.
  • the switching unit 13a detects a type of applied AC voltage based on potentials of the three phase inputs 14a, 15a, 16a.
  • the single-phase alternating voltage applied between the phase input 14a and the neutral input 17a is applied by closing the switching element 18a between two of the three phases 42a, 43a, 44a.
  • the rectification circuit 12a converts the AC voltage applied between the two phases 42a, 44a in the illustrated embodiment into a DC voltage.
  • the switching unit 13a is provided for detecting a DC voltage. If the switching unit 3a detects a DC voltage present between the phase input 14a and the neutral conductor input 17a in the charging operating mode, the switching unit 13a also closes the switching element 18a.
  • the rectification circuit 12a passes through the DC voltage applied to the phases 42a, 44a essentially without resistance, as a result of which, analogously to a converted AC voltage, it also rests against the two conductors 33a, 34a of the inverter circuit 24a.
  • a power for charging the battery device 11a is inputted through the phase inputs 14a, 15a, 16a and the neutral conductor input 17a of the charger 10a.
  • the filter unit 58a and the operating mode switching device 48a are arranged one after the other.
  • the operating mode switching device 48a is followed by the drive machine 19a, which is also integrated into the energy flow by connecting the phases 42a, 43a, 44a to the motor coils 20a, 21a, 22a.
  • the energy flow passes through the inverter circuit 24a.
  • the inverter circuit 24a is connected to the battery device 11a via the intermediate circuit 64a and the voltage converter 53a.
  • the drive system comprises a control and regulation unit 68a.
  • the control and regulation unit 68a comprises at least one control unit with a processor unit which is provided for a control and regulation.
  • the control and regulation unit 68a may also have a plurality of structurally separated control units which are provided for different functions of the control and regulation unit 68a.
  • the control and regulation unit 68a is provided in particular for controlling the charging device 10a and the inverter circuit 24a. It controls the actively controllable switching elements of the inverter circuit 24a.
  • the control unit 68a is provided for the operation mode switching device 48a.
  • the control and regulation unit 68a in particular switches the switching elements 49a, 50a, 51a.
  • control unit 68a is provided to the monitoring unit 66a, i. An electronic evaluation of the monitoring unit 66a is performed by the control and regulation unit 68a.
  • control unit 68a is provided for controlling the switching unit 13a.
  • the control and regulation unit 68a determines, by means of the monitoring unit 66a, the voltages present between the phase inputs 14a, 15a, 16a and the neutral conductor input 17a and switches the switching element 18a of the switching unit 13a as a function of the detected voltages.
  • FIG. 3 shows a further exemplary embodiment of the invention.
  • the following descriptions are essentially limited to the differences between the exemplary embodiments, it being possible to refer to the description of the exemplary embodiment of FIGS. 1 and 2 with regard to components, features and functions that remain the same.
  • the letter a in the reference numerals of the embodiment in Figures 1 and 2 by the letter b in the reference numerals of the embodiment of Figure 3 is replaced.
  • identically designated components in particular with regard to components having the same reference numerals, it is also possible in principle to refer to the drawings and / or the description of the first exemplary embodiment in FIGS. 1 and 2.
  • FIG. 3 shows an alternative embodiment of a drive system according to the invention.
  • the drive system comprises a charging device 10b, an electric drive machine 19b and a power electronics 23b.
  • the drive system comprises a battery device 11 b.
  • the charging device 10b comprises three phase inputs 14b, 15b, 16b, which are each connected individually to a motor coil 20b, 21b, 22b of the prime mover 19b.
  • the charging device 10b is configured analogously to the preceding embodiment.
  • the charging device 10b comprises a filter unit 58b and a monitoring unit 66b.
  • the charging device 10b comprises a rectification circuit 12b with connected power factor correction circuit 25, which is partially designed in one piece with the power electronics 23b.
  • the charging device 10b comprises a suppressor unit 59b with line bypass capacitors 26b, 27b, 65b and a voltage converter 53b.
  • the charging device 0b For switching between a single-phase charging operation and a multi-phase charging operation, the charging device 0b comprises a switching unit 3b, which comprises a switching element 18b, which is intended to connect one of the three phase inputs 14b, 15b, 16b of the charging device 10b to a neutral conductor input 17b of the charging device 10b ,
  • the power electronics 23b includes an inverter circuit 24b formed as a three-level inverter circuit.
  • the inverter circuit 24b comprises a total of six half-bridges 35b, 35b ', 36b, 36b', 37b, 37b '. In each case two of the half bridges 35b, 35b ', 36b, 36b', 37b, 37b 'are provided for a phase 28b, 29b, 30b of the drive machine 19b.
  • the paired half-bridges 35b, 35b ', 36b, 36b', 37b, 37b ', which are provided for one of the phases 28b, 29b, 30b, are connected between two conductors 33b, 34b of the inverter circuit 24b.
  • the phases 28b, 29b, 30b are each connected to a point between the two corresponding half-bridges 35b, 35b ', 36b, 36b', 37b, 37b '.
  • Bridge points of all six half-bridges 35b, 35b ', 36b, 36b', 37b, 37b ' are each connected via a diode to a conductor 69b of the inverter circuit 24b.
  • An intermediate circuit 64b of the power electronics has two capacitors connected in series.
  • the conductor 69b, to which the additional diodes of the inverter circuit 24b are connected, is connected at a point between the two capacitors of the intermediate circuit 64b.
  • the conductor 69b of the inverter circuit 24b and the two conductors 33b, 34b constitute three different potentials of the three-level inverter circuit.
  • the conductor 69b of the inverter circuit 24b defines a central potential, against which potentials of the two conductors 33b, 34b are displaced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Dc-Dc Converters (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un groupe moteur de véhicule automobile comprenant un dispositif de charge (10a; 10b) conçu pour charger un ensemble accumulateur (11a; 11b) à partir d'un réseau électrique externe, et qui comprend au moins un circuit redresseur polyphasé (12a; 12b), conçu pour convertir une tension alternative du réseau électrique externe en une tension continue. Selon l'invention, le dispositif de charge (10a; 10b) présente une unité de commutation (13a; 13b) qui est conçue pour commuter sélectivement le circuit redresseur (12a; 12b) entre un mode de charge monophasé et un mode de charge polyphasé.
PCT/EP2011/002886 2010-07-20 2011-06-11 Groupe moteur de véhicule automobile comprenant un dispositif de charge Ceased WO2012019666A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010027719A DE102010027719A1 (de) 2010-07-20 2010-07-20 Kraftfahrzeugantriebssystem mit einer Ladevorrichtung
DE102010027719.3 2010-07-20

Publications (2)

Publication Number Publication Date
WO2012019666A2 true WO2012019666A2 (fr) 2012-02-16
WO2012019666A3 WO2012019666A3 (fr) 2012-04-19

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DE (1) DE102010027719A1 (fr)
WO (1) WO2012019666A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104842806A (zh) * 2014-02-13 2015-08-19 株式会社日立制作所 铁路车辆用驱动装置
CN110461641A (zh) * 2017-04-13 2019-11-15 宝马股份公司 用于车辆的充电电路装置以及用于充电电路装置的方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2997578B1 (fr) * 2012-10-25 2016-01-08 Renault Sas Dispositif de charge d'une batterie a partir d'un reseau monophase
DE102016100358A1 (de) * 2016-01-11 2017-07-13 Volkswagen Aktiengesellschaft Elektrosystem für ein Fahrzeug, Fahrzeug sowie Verfahren zum Durchführen eines Ladevorgangs
DE102016213070B4 (de) * 2016-07-18 2017-05-11 Continental Automotive Gmbh Fahrzeugbordnetz und Verfahren
DE102017221635B4 (de) * 2017-12-01 2021-12-23 Vitesco Technologies GmbH Ermitteln einer Netzsystemart einer Energiequelle zum Aufladen eines elektrischen Energiespeichers

Citations (1)

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Publication number Priority date Publication date Assignee Title
US5341075A (en) 1993-03-10 1994-08-23 A.C. Propulsion, Inc. Combined motor drive and battery recharge system

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Publication number Priority date Publication date Assignee Title
SE9202823L (sv) * 1992-09-30 1994-03-31 Volvo Ab Anordning och förfarande för uppladdning av elfordon
JP3178146B2 (ja) * 1992-12-25 2001-06-18 富士電機株式会社 電気自動車の電気システム
DE102009000096A1 (de) * 2009-01-09 2010-07-15 Robert Bosch Gmbh Verfahren für die Steuerung einer Stromversorgungseinrichtung mit einem Wechselrichter

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
US5341075A (en) 1993-03-10 1994-08-23 A.C. Propulsion, Inc. Combined motor drive and battery recharge system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104842806A (zh) * 2014-02-13 2015-08-19 株式会社日立制作所 铁路车辆用驱动装置
CN110461641A (zh) * 2017-04-13 2019-11-15 宝马股份公司 用于车辆的充电电路装置以及用于充电电路装置的方法
CN110461641B (zh) * 2017-04-13 2023-06-06 宝马股份公司 用于车辆的充电电路装置以及用于充电电路装置的方法

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WO2012019666A3 (fr) 2012-04-19
DE102010027719A1 (de) 2012-01-26

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