WO2012019665A2 - 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
WO2012019665A2
WO2012019665A2 PCT/EP2011/002885 EP2011002885W WO2012019665A2 WO 2012019665 A2 WO2012019665 A2 WO 2012019665A2 EP 2011002885 W EP2011002885 W EP 2011002885W WO 2012019665 A2 WO2012019665 A2 WO 2012019665A2
Authority
WO
WIPO (PCT)
Prior art keywords
drive system
motor vehicle
charging device
vehicle drive
charging
Prior art date
Application number
PCT/EP2011/002885
Other languages
German (de)
English (en)
Other versions
WO2012019665A3 (fr
Inventor
Jörg HUBER
Michael Hofmann
Axel Willikens
Volker Hartmann
Wolfgang Wondrak
Steffen Hahlbeck
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 WO2012019665A2 publication Critical patent/WO2012019665A2/fr
Publication of WO2012019665A3 publication Critical patent/WO2012019665A3/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • 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
    • 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
    • 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
    • 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
    • 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 preventing torque build-up on the prime mover, in particular in a loading mode of operation. It is achieved according to the invention by the features of claim 1. Further embodiments emerge from the subclaims.
  • the invention relates to 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, and with an electric drive machine comprising at least two motor coils connected together at a neutral point.
  • the rectification circuit is electrically connected in at least one operating mode to the star point of the drive machine.
  • a charging current which provides the charging device for charging the battery device, are distributed evenly on the coil windings of the engine, whereby a Drive system can be provided with a charging device, which prevents a torque build-up on the prime mover, in particular in a loading mode of operation.
  • An “external power network” should be understood to mean, in particular, a power grid independent of the drive system, in particular a public power grid.
  • a multiphase rectification circuit is to be understood in particular to mean a rectifier circuit having at least two, preferably three phases.
  • a "neutral point of a prime mover” should be understood to mean, in particular, an electrical point with respect to which the three motor coils are arranged substantially symmetrically, "electrically connected” being understood to mean that at least part of a power flow is at least in a charging operating mode is introduced via the neutral point in the prime mover.
  • at least part of the rectification circuit is connected to the neutral point essentially without resistance.
  • substantially resistance-free is to be understood in particular as meaning that a resistance of the electrical conductor is negligibly connected to the star point, ie, electrically decoupled from the neutral point in at least one operating mode programmed, equipped and / or designed to be understood.
  • the charging device has at least one conductor which is electrically connected to the neutral point.
  • a "conductor” is to be understood in this context, in particular an electrical conductor of the charging device, which is electrically connected at one end to the neutral point and one end electrically connected to the rectification circuit and / or connectable.
  • the charging device has a separating element which is provided to at least partially electrically separate the rectifying circuit and the driving machine from each other in at least one operating mode.
  • the rectification circuit can advantageously be disconnected from the drive machine in a drive operating mode, as a result of which, in particular in a drive operating mode, an advantageous separation of the load device can be achieved.
  • a "separating element” should be understood to mean, in particular, a switching element that is provided in at least one operating mode to electrically disconnect a conductor, and in at least one operating mode is intended to electrically close the conductor.
  • the charging device comprises at least one buck converter, which is intended to convert the DC voltage of the rectification circuit into a charging voltage.
  • a “step-down converter” should be understood to mean, in particular, a circuit having at least one switching element and at least one coil, which is intended to convert an applied DC voltage into a lower voltage.
  • the step-down converter is arranged electrically between the rectification circuit and the drive machine.
  • electrically intermediate should be understood to mean in particular that the rectification circuit, the step-down converter and the drive machine are electrically connected in series in this sequence in at least one electrical power flow Terms "before”, “after” and “between” should also be assumed in the following description, unless otherwise explicitly stated, of an electrical arrangement with regard to the power flow in the charging operating mode.
  • the charging device has at least one network leakage capacitor.
  • a “line bypass capacitor” should be understood to mean, in particular, a capacitor which is connected between at least one conductor carrying potential in at least one operating state, in particular one 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 motor vehicle drive system comprises a power electronics, the at least one in series with the Rectifying circuit has switched inverter circuit.
  • the rectification circuit can be advantageously adapted to the charging mode, while the inverter circuit can be advantageously adapted to the driving mode and a generator operating mode.
  • a “charging operation mode” is to be understood here as meaning, in particular, an operating mode in which the battery device is charged by means of an electrical power drawn from the external power network , which is supplied to the prime mover for a momentary delivery.
  • a “generator operating mode” is understood in particular to mean an operating mode in which the drive machine generates electrical power from a supplied mechanical power, by means of which the battery device is charged, in particular during a recuperation in which the mechanical power is introduced via drive wheels.
  • the inverter circuit forms at least one 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 power electronics has at least one power dissipation capacitor.
  • a security and a susceptibility, especially in relation to the external power grid further increased.
  • the repercussions on the external power grid can be further reduced.
  • an efficiency of the rectification circuit can be increased.
  • the charging device has at least one power factor correction circuit which is provided to adapt a power factor.
  • the charging device has a monitoring unit which is provided to monitor at least one electrical supply and / or device parameter.
  • a reliability can be increased.
  • precautionary parameters are to be understood in particular to mean parameters that are predetermined by the external power grid, such as, for example, a grid network. Voltage of the external power grid or an alternating frequency of the external power grid.
  • device characteristics is to be understood in this case as meaning in particular parameters determined by the charging device, such as, for example, a charging current, a fault current or an insulation fault of the charging device.
  • the charging device has a switching unit which is provided to selectively switch a single-phase charging operating mode or a multi-phase charging operating mode.
  • the charging device can be provided for different configurations of the external power network.
  • high charging currents can be achieved by the multiphase charging operation, whereby a charging time can be kept short. Due to the single-phase charging operation, the charging device can be advantageously used even in the absence of a multi-phase terminal.
  • a “single-phase charging operating mode” is to be understood in particular as meaning that in the charging operating mode, only one of the phases of the charging device has a potential with respect to the neutral.
  • a “multi-phase charging operation mode” should be understood to mean that at least two of the phases in the charging operating mode Charger have a potential relative to the neutral.
  • 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.
  • FIG. 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 where the two parts are connected to each other in the two figures each identically capitalized letters A, B, C, D, E, F marked.
  • 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 13a, 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 13a is formed as a three-phase motor.
  • the prime mover 13a comprises three motor coils 15a, 16a, 17a.
  • the prime mover 13a comprises three separate phases 28a, 29a, 30a.
  • the prime mover 13a In a drive mode, the prime mover 13a generates a drive torque from an electric power supplied thereto.
  • the engine 13a In a generator operating mode, the engine 13a generates electric power from a mechanical power supplied thereto, which can be supplied to the engine 13a via drive wheels, for example.
  • the three motor coils 15a, 16a, 17a are brought together at a neutral point 14a of the drive machine.
  • the star point 14a is formed as a central connection point.
  • the three motor coils 15a, 16a, 17a are arranged electrically symmetrically with respect to the star point 14a.
  • 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 1 1a.
  • the drive system comprises power electronics 22a.
  • the power electronics 22a comprises an inverter circuit 23a 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 23a 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 15a, 16a, 17a of the prime mover 13a.
  • 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 and two free-wheeling diodes arranged parallel to the switching elements.
  • the freewheeling diodes a Half bridge are arranged opposite.
  • the motor coils 15a, 16a, 17a of the prime mover 13a 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 23a In the driving mode, the inverter circuit 23a generates an AC voltage from the DC voltage of the battery device 11a.
  • the AC voltage generated by the inverter circuit 23a defines a power that the engine 13a outputs.
  • a rotational speed which has the drive machine 3a, adjustable.
  • the alternating voltage is applied as a three-phase current to the motor coils 15a, 16a, 17a of the drive machine 13a.
  • the inverter circuit 23a converts the AC voltage generated by the engine 13a into a DC voltage.
  • the inverter circuit 23a acts as a step-up converter, which converts the AC voltage provided by the drive machine 13a into a higher DC voltage. In principle, however, the inverter circuit 23a can also be operated without a step-up operation.
  • the DC voltage to which the inverter circuit 23a converts the AC voltage generated by the engine 13a causes a charging operation of the battery device 11a.
  • the charging device 10a is functionally substantially disconnected from the inverter circuit 23a.
  • the charging device 10a comprises a polyphase rectification circuit 12a, which converts an AC voltage to a DC voltage.
  • the rectification circuit 12a comprises three phase inputs 38a, 39a, 40a and phases 41a, 42a, 43a connected to the phase inputs 38a, 39a, 40a, a neutral conductor input 44a and a neutral conductor 45a connected to the neutral input 44a, and a protective conductor input 46a and one to the protective conductor input 46a subsequent protective conductor 47a.
  • the three phase inputs 38a, 39a, 40a are provided for a three-phase current.
  • the neutral input 44a 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 rectification circuit 12a comprises, for each of the phases 41a, 42a, 43a, a diode unit 49a, 50a, 51 each having two diodes arranged in pairs. Two of the diodes are each associated with one of the phases 41a, 42a, 43a.
  • the first phase 41a associated diode unit 49a, the second phase 42a associated diode unit 50a and the third phase 43a associated diode unit 51a are respectively connected opposite.
  • the diode units 49a, 50a, 51a define a polarity of the DC voltage which the rectification circuit 12a generates from the AC voltage fed via the phase inputs 38a, 39a, 40a.
  • the charging device 10a is connected to the battery device 11a via the inverter circuit 23a.
  • the rectification circuit 12a is connected to the neutral point of the prime mover 13a in the loading mode of operation.
  • the motor coils 15a, 16a, 17a are arranged after the star point 14a.
  • the rectifier circuit 12a is connected to the rechargeable battery device 11a via the neutral point 14a and the motor coils 15a, 16a, 17a arranged after the neutral point 14a.
  • the charging device 10a comprises two conductors 18a, 48a to which the DC voltage generated by the rectification circuit 12a is applied in the charging operation mode.
  • the first conductor 48a of the charging device which is connected to one half of the diodes of the rectification circuit 12a, is electrically connected directly to the conductor 34a of the inverter circuit 23a.
  • the second conductor 18a of the charger 10a which is connected to the other half of the diodes of the rectifying circuit 12a, is electrically connected to the star point 14a of the engine 13a.
  • the rectification circuit 12a is connected via the conductor 18a to the star point 14a of the prime mover 13a.
  • a DC voltage applied in the charging operation mode between the two conductors 18a, 48a is thereby symmetrically distributed to the motor coils 15a, 16a, 17a of the prime mover 13a.
  • the prime mover 13a is thereby torque-free in the loading mode of operation, i. a torque output by the engine 13a is equal to zero.
  • the motor coils 15a, 16a, 17a are connected to the conductor 33a of the inverter circuit 23a via the inverter circuit 23a, whose freewheeling diodes define a corresponding forward direction.
  • the paired diodes of the rectifier circuit 12a and the paired freewheeling diodes of the inverter circuit 23a are correspondingly arranged with respect to the conductors 18a, 48a, 33a, 34a.
  • the charging device 10a comprises a power factor correction circuit 25a.
  • the power factor correction circuit 25a is connected to the rectification circuit 12a.
  • the power factor correction circuit 25a comprises a switching unit 52a comprising, for each phase 41a, 42a, 43a of the rectification circuit, a transistor diode unit which is actively driven for power factor correction, and a coil unit 53a comprising three coils, each in one of the Phases 4 a, 42a, 43a are introduced.
  • the power factor correction circuit 25a includes a capacitor unit 54a having two capacitors in series. The capacitor unit 54a is connected between the two conductors 18a, 48a of the charging device 10a.
  • the charging device 10a For disconnecting the rectifier circuit 12a, the charging device 10a comprises a switchable isolating element 19a, which is integrated in one of the conductors 18a, 48a of the charging device 10a.
  • the separating element 19a is integrated in the second conductor 18a.
  • the separating element 19a is electronically controllable. In the driving mode and the generator operating mode, the partition 19a is opened. In the charging operation mode, the partition member 19a is closed.
  • the rectifying circuit 12a is electrically connected to the neutral point 14a of the engine 15a in the charging operation mode.
  • the motor coils 15a, 16a, 17a of the prime mover 13a are arranged after the neutral point 14a.
  • the power flow, which is introduced via star point 14a into prime mover 13a, is uniformly distributed via the motor coils 15a, 6a, 17a to the phases 28a, 29a, 30a of prime mover 13a.
  • the charging device 10a comprises a step-down converter 20a.
  • the buck converter 20a is electrically connected in series with the rectification circuit 12a.
  • the buck converter 20a is disposed between the rectification circuit 12a and the neutral point 14a of the engine 13a.
  • the buck converter 20a comprises a switching element 55a and a coil 56a.
  • the buck converter 20a comprises a capacitor 57a and a diode 58a.
  • the diode 58a and the capacitor 57a are arranged between the conductors 18a, 48a of the charging device 10a.
  • the buck converter 20a is in front of the separator 19a, i. between the rectifying circuit 12a and the separator 19a.
  • the charging device 10a partially has a sufficiently high dielectric strength of, for example, 200 volts.
  • the rectification circuit 12a is designed for this dielectric strength.
  • the buck converter 20a converts the DC voltage generated by the rectification circuit 12a into a lower charging voltage.
  • the charging voltage which is also a DC voltage, is adjustable via the buck converter 20a.
  • a withstand voltage of the components arranged after the step-down converter 20a is less than the dielectric strength of the rectification circuit 12a.
  • the low Setter 20 a arranged components have a dielectric strength of, for example, 650 volts.
  • the prime mover 13a and the power electronics 22a are designed for this dielectric strength.
  • the charging device 10a comprises a filter unit 59a.
  • the filter unit 59a forms an EMC filter.
  • the filter unit 59a 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 41a, 42a, 43a of the charging device 10a.
  • a cutoff frequency above which the filter unit 59a attenuates is greater than a maximum expected network frequency of the external power grid.
  • the charging device 10a further comprises a suppressor unit 60a with a mains bypass capacitor 24a.
  • the grid bypass capacitor 24a is classified as a y capacitor.
  • the suppression unit 60a includes three x capacitors 61a, 62a, 63a.
  • the x-capacitors 61a, 62a, 63a are each connected in pairs between the three phases 41a, 42a, 43a of the charging device 10a. Two each of the x capacitors 61a, 62a, 63a are connected in series with respect to two of the phases 41a, 42a, 43a.
  • the three x-capacitors 61a, 62a, 63a are electrically connected to one another via a common contact point.
  • the power dissipation capacitor 24a is connected to the common contact point of the x capacitors 61a, 62a, 63a.
  • the power dissipation capacitor 24a is thus connected between the three phases 41a, 42a, 43a and the neutral conductor 45a of the charging device 10a.
  • the suppressor unit 60a comprises a capacitor 64a, which is connected between the neutral conductor 45a and the protective conductor 47a.
  • the power electronics 22a comprises an intermediate circuit 65a.
  • the intermediate circuit 65a comprises a capacitor which is arranged between the two conductors of the inverter.
  • the power electronics 22a includes two power dissipation capacitors 24a, 66a.
  • the first power dissipation capacitor 24a is disposed between the conductor 33a and the protective conductor 47a.
  • the second power dissipation capacitor 66a is disposed between the conductor 34a and the protective conductor 47a.
  • the charging device 10a further comprises a monitoring unit 26a.
  • the monitoring unit 26a is connected to the three phases 41a, 42a, 43a, the neutral conductor 45a and the protective conductor 47a.
  • the monitoring unit 26a monitors voltages which occur at the phases 41a, 42a, 43a, the neutral conductor 45a and the protective conductor 47a.
  • it monitors electrical currents flowing through the phases 41a, 42a, 43a, the neutral conductor 45a and the protective conductor 47a.
  • the Chung unit from an insulation monitor, which determines in particular an insulation resistance of the phases 41a, 42a, 43a against the protective conductor 47a.
  • 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 one-phase charging operation and a three-phase charging operation, the charging device 10a comprises a switching unit 27a.
  • the switching unit 27a comprises a switching element 68a, which is provided to connect the neutral conductor 45a of the charging device 10a to one of the phases 41a, 42, 43a.
  • the switching unit 27a is designed to be automated. If the switching unit 27a detects a single-phase AC voltage applied to the phase inputs 38a, 39a, 40a and the neutral conductor input 44a, it automatically closes the switching element 68a and connects the neutral conductor 45a to the phase 43a. The single-phase AC voltage is thus applied to two of the three phases 41a, 42a, 43a.
  • the rectification circuit 12a converts the AC voltage applied between the two phases 41a, 43a into a DC voltage.
  • the switching unit 27a is provided for detecting a DC voltage. If the switching unit 27a detects a DC voltage applied to the phase input 41a and the neutral conductor input 44a in the charging operating mode, the switching unit 27a also closes the switching element 68a.
  • the rectification circuit 12a allows the DC voltage applied to the phases 41a, 43a to pass substantially without resistance, as a result of which, analogously to a converted AC voltage, it also rests against the two conductors 18a, 48a of the charging device 10a.
  • a power for charging the battery device 11a is supplied through the phase inputs 38a, 39a, 40a and the neutral conductor input 44a of the charger 10a.
  • the filter unit 59a, the rectifier circuit 12a, the power factor correction unit 25a, the buck converter 20a and the separator 19a are successively arranged.
  • the charging device 10a is adjoined by the drive machine 13a, which is also integrated into the energy flow by the connection of the charging device 10a to the neutral point 14a. Starting from the engine 13a, the flow of energy passes through the inverter circuit 23a.
  • the inverter circuit 23a is connected to the battery device 11a via the intermediate circuit 65a.
  • the drive system comprises a control and regulation unit 69a.
  • the control unit 69a comprises at least one control unit with a processor unit, which is intended for control and regulation.
  • the control and regulation unit 69a can also have a plurality of structurally separated control units which are provided for different functions of the control and regulation unit 69a.
  • the control and regulation unit 69a is provided in particular for controlling the charging device 10a. It controls the actively controllable switching elements of the power factor correction circuit 25a and the separating element 19a of the charging device 10a.
  • the control and regulation unit 69a is provided for the monitoring unit 26a, ie an electronic evaluation of the monitoring unit 26a is performed by the control and regulation unit 69a.
  • control and regulation unit 69a is provided for controlling the power electronics 22a, ie in particular for switching the switching elements of the inverter 23a.
  • control unit 69a is provided for controlling the switching unit 27a.
  • the control and regulation unit 69a determines, by means of the monitoring unit 26a, the voltages present between the phase inputs 38a, 39a, 40a and the neutral conductor input 44a and switches the switching element 68a of the switching unit 27a 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, reference being made to the description of the first exemplary embodiment of FIGS. 1 and 2 with regard to components, features and functions remaining 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.
  • 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 13b and a power electronics 22b.
  • the drive system comprises a battery device 11 b.
  • the charging device 10b is configured analogously to the preceding embodiment.
  • the charging device 10b comprises a filter unit 59b and a monitoring unit 26b.
  • the charging device 10b comprises a rectification circuit 12b with connected power factor correction circuit 25b and a switching unit 27b for switching between a single-phase charging operation and a multi-phase charging operation. de ist.
  • the charging device 10b comprises a suppression unit 60b with a mains dissipation capacitor 21b and a step-down converter 20b.
  • the power electronics 22b comprise, analogously to the preceding exemplary embodiment, two further network leakage capacitors 24b, 66b.
  • the charging device 10b is connected in a loading mode to a star point 14b of the engine 13b, via which three motor coils 15b, 16b, 17b of the drive machine 13b are connected to each other.
  • a conductor 18b of the charger 10b is electrically connected to the star point 14b of the engine 13b.
  • a separator 19b is included, which is provided to electrically separate the rectifying circuit 12b and the engine 13b in a driving mode of operation
  • the power electronics 22b includes an inverter circuit 23b formed as a three-level inverter circuit.
  • the inverter circuit 23b 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 13b.
  • 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 23b.
  • 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 48b of the charging device 10b, which is led into the inverter circuit 23b.
  • An intermediate circuit 65b of the power electronics 22b has two capacitors connected in series.
  • the conductor 48b, to which the additional diodes of the inverter circuit 23b are connected, is connected at a point between the two capacitors of the intermediate circuit 65b.
  • the charging conductor 48b and the two interconnectors 33b, 34b of the interconnection circuit constitute three different potentials for the three-level inverter circuit.
  • the conductor 48b of the charging device defines a center or zero 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)
  • 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, et un moteur électrique (13a; 13b), qui comporte au moins deux bobines (15a, 16a, 17a; 15b, 16b, 17b) raccordées à un point neutre (14a; 14b). Selon l'invention, le circuit redresseur (12a; 12b) est raccordé électriquement au point neutre (14a; 14b) du moteur (13a; 13b) dans au moins un mode de fonctionnement.
PCT/EP2011/002885 2010-07-20 2011-06-11 Groupe moteur de véhicule automobile comprenant un dispositif de charge WO2012019665A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010027713A DE102010027713A1 (de) 2010-07-20 2010-07-20 Kraftfahrzeugantriebssystem mit einer Ladevorrichtung
DE102010027713.4 2010-07-20

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WO2012019665A2 true WO2012019665A2 (fr) 2012-02-16
WO2012019665A3 WO2012019665A3 (fr) 2012-07-26

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2765022A3 (fr) * 2013-02-06 2017-03-29 LG Electronics, Inc. Système de charge et véhicule électrique le comportant
CN113859004A (zh) * 2020-06-30 2021-12-31 比亚迪股份有限公司 一种能量转换装置及其车辆
US20220227242A1 (en) * 2019-05-23 2022-07-21 Universitaet Paderborn Apparatus and method for charging an electric battery vehicle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014013115A1 (de) 2014-09-03 2016-03-03 Daimler Ag Glätten eines von einer Gleichrichteinrichtung bereitstellbaren Stromes
DE102018203388A1 (de) * 2018-03-07 2019-09-12 Continental Automotive Gmbh Vorladen eines Zwischenkreiskondensators eines Gleichspannungszwischenkreises

Citations (1)

* Cited by examiner, † Cited by third party
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

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0834977A3 (fr) * 1996-08-08 1999-04-14 Schmidhauser AG Dispositif de charge pour au moins une batterie, en particulier une batterie pour un véhicule électrique, et méthode de fonctionnement de ce dispositif
FR2937803A3 (fr) * 2008-10-23 2010-04-30 Renault Sas Dispositif pour la mise en forme d'un courant de charge d'une source de tension continue rechargeable d'un vehicule automobile electrique ou hybride
FR2943188B1 (fr) * 2009-03-11 2013-04-12 Renault Sas Dispositif de charge rapide pour un vehicule electrique.
DE102009020504B4 (de) * 2009-05-08 2023-08-17 Sew-Eurodrive Gmbh & Co Kg Ladeanordnung für ein Fahrzeug und Fahrzeug

Patent Citations (1)

* Cited by examiner, † Cited by third party
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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2765022A3 (fr) * 2013-02-06 2017-03-29 LG Electronics, Inc. Système de charge et véhicule électrique le comportant
US20220227242A1 (en) * 2019-05-23 2022-07-21 Universitaet Paderborn Apparatus and method for charging an electric battery vehicle
CN113859004A (zh) * 2020-06-30 2021-12-31 比亚迪股份有限公司 一种能量转换装置及其车辆
CN113859004B (zh) * 2020-06-30 2023-05-05 比亚迪股份有限公司 一种能量转换装置及其车辆

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WO2012019665A3 (fr) 2012-07-26
DE102010027713A1 (de) 2012-01-26

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