• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to an electrical system, intended to charge a battery, in particular embedded in a vehicle, said electrical system comprising: a three-phase alternating-continuous converter (PFC) comprising input terminals intended to be connected to an electrical network external, a high output terminal and a low output terminal, a DC-DC converter (LLC) consisting of two DC-DC converter circuits (LLC1, LLC2), a first converter circuit (LLC1) having a high input terminal connected to the high output terminal of the AC-DC converter (PFC) and a second converter circuit (LLC2) having a low input terminal connected to the low output terminal of the AC-DC converter (PFC), the terminal of low input of the first DC-DC converter circuit (LLC1) being connected to the high input terminal of the second DC-DC converter circuit (LLC2), and, high output terminal of the first converter circuit (LLC1) being connected to the high output terminal of the second converter circuit (LLC2) and the low output terminal of the first converter circuit (LLC1) being connected to the low output terminal of the second circuit converter (LLC2).
    公开号:FR3064832A1
    申请号:FR1752862
    申请日:2017-04-03
    公开日:2018-10-05
    发明作者:Gang Yang；Boris Bouchez
    申请人:Valeo Siemens eAutomotive France SAS；
    IPC主号:
    专利说明:

    TECHNICAL FIELD AND OBJECT OF THE INVENTION In general, the invention relates to an electrical system for charging electrical energy storage units, in particular such an electrical system on board a motor vehicle, in particular an electric vehicle or hybrid.
    More specifically, in the context of an electric or hybrid vehicle comprising at least one supply battery for a traction motor of the vehicle, it is known that an on-board charger system, commonly designated by man of the trade under the acronym OBC for "On Board Charger" in English, meaning "on-board charger", or implemented. The present invention relates in particular in this context, an electrical system forming an improved on-board charger, capable of operating optimally both when it is connected to a three-phase electrical network and when it is supplied by a single-phase electrical network.
    STATE OF THE ART As is known, an electric or hybrid vehicle comprises an electric motorization system powered by a high voltage power supply battery via an on-board high voltage electrical network and a plurality of auxiliary electrical equipment powered by a low voltage supply battery via an on-board low voltage electrical network. Thus, the high-voltage power supply battery provides a power supply function for the electric motorization system enabling the vehicle to be propelled. The low voltage supply battery supplies auxiliary electrical equipment, such as on-board computers, window lift motors, a multimedia system, etc. The high voltage supply battery typically delivers 100 V to 900 V, preferably from 100 V to 500 V, while the low voltage supply battery typically supplies 12 V, 24 V or 48 V. Said two supply batteries high and low voltage must be capable of being charged.
    [0004] Electric power recharging of the high-voltage power supply battery is carried out by connecting it, via a high-voltage electrical network of the vehicle, to an external electrical network, for example the domestic alternative electrical power network. In practice, depending on whether it is a charging station dedicated to recharging the battery of electric or hybrid vehicles or the domestic alternative electrical supply network, said external electrical network can be three-phase or single-phase.
    A three-phase external electrical network allows faster recharging of the vehicle's high-voltage battery. However, such a three-phase network is not always available and the on-board charger system, designated OBC system, must allow charging of the high-voltage battery, even when the external electrical network is single-phase.
    In general, as is known, OBC systems mainly comprise an AC-DC converter and a DC-DC converter, preferably galvanically isolated. The AC-DC converter is generally with power factor correction, designated AC-DC converter (for "Power Factor Correction" in English). The PFC AC converter, in its power factor correction function, eliminates deformations of the electrical network on the absorbed current to avoid the appearance of harmful harmonic currents to the external electrical network. The PFC AC converter allows you to put the input current and voltage in phase.
    The general problem, in the context of the present invention, therefore relates to the design of an electric charger system allowing three-phase and single-phase operation.
    According to the state of the art, to allow charging of a battery from an external electrical network which can be three-phase or single-phase, it is known to use an electrical system comprising three single-phase AC-DC converters AC / DC each connected to a respective DC / DC single-phase DC-DC converter, as shown in Figure 1.
    This solution has the advantage of allowing the charging of a vehicle battery from a single-phase or three-phase external electrical network, with great flexibility of use and good electrical efficiency. However, the number of components required, in particular the multiplication of converters, considerably increases the cost and size of such electrical systems. It is therefore necessary to develop a more compact and economical solution. In addition, it should be noted that, in this topology, the presence of a neutral branch N is necessary to balance the branches a, b, c of the AC / DC AC / DC converters.
    A known solution, from this perspective, consists in implementing an OBC system composed of a single three-phase AC-DC PFC converter connected to a DC-DC converter LLC, as shown in FIG. 2. As is known said DC-DC converter typically consists of an isolated resonant circuit comprising a primary circuit P and a secondary rectifier circuit RD.
    However, if the compactness is naturally better, the efficiency in single-phase is very low, insofar as only two arms of the DC converter are used, the system operating at best at one third of its theoretical power.
    In order to improve the performance of electric charger systems, in that they allow the charging of a battery from an external three-phase or single-phase electrical network optimally while preserving their compactness, the The present invention provides an electric charger system comprising an AC-DC converter, typically a three-phase AC-DC converter and a DC-converter comprising two DC-to-DC converter circuits connected in series with the AC-DC three-phase converter and in parallel in parallel. exit.
    GENERAL PRESENTATION OF THE INVENTION More specifically, the invention relates to an electric system of electric charger intended to charge a battery from an external electric network, in particular intended to be embarked in an electric or hybrid vehicle to charge a battery, causing the vehicle, from an electrical network external to said vehicle, said electrical system comprising:
    a three-phase ac-dc converter comprising input terminals intended to be connected to an external electrical network, a high output terminal and a low output terminal, a dc-dc converter, said dc-dc converter having two dc converter circuits continuous, a first continuous converter circuit having a high input terminal connected to the high output terminal of the AC-DC converter and a second continuous-DC converter circuit having a low input terminal connected to the low output terminal of the AC-DC converter, the lower input terminal of the first DC-DC converter circuit being connected to the upper input terminal of the second DC-DC converter circuit, and, the upper output terminal of the first converter circuit being connected to the upper output terminal of the second DC-DC converter circuit and the terminal low output ne of the first converter circuit being connected to the low output terminal of the second dc-dc converter circuit.
    Thanks to the electrical system according to the invention, there is provided an electric charger system, in particular for charging a vehicle battery, which is compact and efficient in three-phase and single-phase.
    In addition, to control the electric charger system according to the invention, it is only necessary to have a single control unit for the three-phase AC-DC converter part and a single control unit for the DC-DC converter part.
    According to one embodiment, the DC-DC converter is configured so that, in a three-phase operating mode, said first and second DC-DC converter circuits receive current supplied by the AC converter, and so that in a single-phase operating mode, only one of said first and second DC-DC converter circuits receives current supplied by the AC-DC converter.
    Advantageously, the system comprises at least one switch configured to short-circuit the input of one of said first and second DC-DC converter circuits in the single-phase operating mode.
    Advantageously, said switch connects the high output terminal of the AC-DC converter or the low output terminal of the AC-DC converter at the connection point between the low input terminal of the first DC-DC converter circuit and the terminal of high input of the second converter circuit, and in which, in the single-phase operating mode, the switch is on to short-circuit the input of the DC-DC converter circuit between the input terminals of which the switch is connected.
    Advantageously, each voltage converter circuit comprises a primary circuit and a secondary circuit, said primary circuits being connected in series between the high output terminal and the low output terminal of the three-phase AC converter, and said secondary circuits being connected by parallel, between a high output terminal and a low output terminal of said DC-DC converter.
    According to one embodiment, said first and second DC-DC converter circuits each consist of a resonant circuit.
    Advantageously, said first and second DC-DC converter circuits are configured to operate with an interleaving.
    According to one embodiment, said first and second DC-DC converter circuits are configured to operate with an interleaving in the three-phase operating mode.
    According to one embodiment, said first and second DC-DC converter circuits are also 90 ° out of phase.
    In this case, the DC-DC converter part is naturally balanced. In addition, the ripple current is naturally reduced.
    According to one embodiment, the three-phase AC-DC converter comprises at least one inductor per phase, each inductor having a first terminal forming an input terminal of the AC-DC converter, and a second terminal connected to an arm, said arm being connected between the high output terminal and the low output terminal of the AC-DC converter of the three-phase AC converter.
    According to one embodiment, each arm comprises two switches so as to connect the corresponding inductance on the one hand to the high output terminal of the AC-DC converter, via a respective switch, and on the other hand to the low output terminal of the AC-DC converter, via a respective switch.
    According to an alternative embodiment, the three-phase AC-DC converter comprises a Vienna-type circuit and an intermediate output terminal.
    Advantageously, the DC-DC converter circuit which is not short-circuited by the switch comprises a capacitive arm connected between the high input terminal and the low input terminal of said DC-DC converter circuit, the system comprising a second switch connected to the intermediate output terminal and configured to, in the three-phase operating mode, connect the intermediate output terminal with the connection point between the two DC-DC converter circuits; and, in the single-phase operating mode, connect the intermediate output terminal with a midpoint of the capacitive arm of the DC-DC converter which is not short-circuited by the switch.
    According to one embodiment, the DC-DC converter is galvanically isolated.
    DESCRIPTION OF THE FIGURES The invention will be better understood on reading the description which follows, given solely by way of example, and referring to the attached drawings which represent:
    Figure 1, the block diagram of a three-phase OBC system according to the state of the art;
    FIG. 2, the functional diagram of another example of a three-phase OBC system according to the state of the art;
    Figure 3, the simplified electronic diagram of an electrical system according to the invention, in a first embodiment;
    Figure 4, the simplified electronic diagram of an electrical system according to the invention, in a second embodiment.
    DETAILED DESCRIPTION OF THE INVENTION It is recalled that the present invention is described below using various nonlimiting embodiments and is capable of being implemented in variants within the scope of skilled in the art, also referred to by the present invention.
    With reference to FIG. 3, an example of an electrical system according to the invention is presented, intended for charging a vehicle battery, in particular an electric or hybrid, connected to its VB + output terminals, VB-.
    Such an electrical system comprises an AC-DC converter with power factor correction having three branches a, b, c, designated AC-DC three-phase converter. The three-phase PFC converter is configured to be connected to an external electrical network (not shown), which can be three-phase or single-phase. A three-phase external electrical network allows faster charging. A single-phase electrical network has the advantage of being an alternative domestic electrical network, typically available in the homes of individuals using electric or hybrid vehicles.
    The alternating current is rectified and a direct voltage is delivered at the output of the alternating-direct converter PFC. Each branch a, b, c of the AC-DC converter PFC is connected to a high output terminal and, respectively, to a low output terminal. At least one switching element Q1, Q2, Q3, Q4, Q5, Q6, such as an isolated gate bipolar transistor, IGBT according to the acronym in English meaning "Isolated Gâte Bipolar Transistor", or a field effect transistor with an insulated gate, designated MOSFET according to the acronym in English meaning “Metal Oxide Semiconductor Field Effect Tansistor”, is placed in each branch between said high and low output terminal. More specifically, the three-phase PFC AC converter comprises at least one inductor per phase, each phase corresponding in particular to a branch a, b, c. Each inductor has a first terminal, forming an input terminal of the AC-DC converter PFC, and a second terminal connected to an arm, said arm being connected between the high output terminal and the low output terminal of the AC-DC converter. of the three-phase continuous PFC converter. In the embodiment represented in FIG. 3, each arm comprises two switches Q1, Q2, Q3, Q4, Q5, Q6 so as to connect the corresponding inductance on the one hand to the high output terminal of the AC-DC converter PFC, via a respective switch, and on the other hand to the low output terminal of the PFC AC converter, via a respective switch.
    Two DC-DC1 converter circuits LLC1, LLC2, in this case formed of two resonant circuits LLC1, LLC2 isolated, are connected at the output of the AC-DC converter PFC, to form a DC-DC converter.
    Said DC-DC converter circuits LLC1, LLC2 are connected in series at the input, the input terminals of each DC-DC converter circuit being connected to the output terminals of the AC-DC converter PFC. In other words, the three-phase PFC AC to DC converter includes input terminals intended to be connected to an external electrical network, a high output terminal and a low output terminal. A first DC-DC converter circuit LLC1 has a high input terminal connected to the high output terminal of the AC / DC converter and a second DC-DC converter circuit LLC2 has a low input terminal connected to the low output terminal of the converter. AC-DC three-phase PFC. The low input terminal of the first DC-DC converter circuit LLC1 is also connected to the high input terminal of the second DC-DC converter circuit LLC2, and the high output terminal of the first DC1 converter circuit LLC1 is connected to the terminal. high output terminal of the second DC-DC converter circuit LLC2, the low output terminal of the first DC1 converter circuit being connected to the low output terminal of the second DC-DC converter circuit LLC2.
    Thanks to this topology in which the two resonant circuits LLC1, LLC2, ensuring the function of DC-DC converters, are symmetrical, with the same input voltage and the same imposed output voltage, the voltage at the midpoint of the voltage converter circuits is naturally balanced.
    In practice, according to the embodiment of Figure 3, corresponding to conventional implementations of resonant circuits LLC1, LLC2, said resonant circuits are galvanically isolated and include a primary circuit with, respectively, controlled switches Q7, Q8 for the resonant circuit LLC1, Q9, Q10 for the resonant circuit LLC2, resonances capacities Cr / 2 and resonance inductors Lr1, respectively Lr2. In addition, the isolated resonant circuits LLC1, LLC2 comprise, on the secondary, a rectifier part formed by the diodes D1, D2, D3, D4 for the resonant circuit LLC1 and D5, D6, D7, D8 for the resonant circuit LLC2.
    Each DC-DC converter circuit LLC1, LLC2 then comprises a primary circuit and a secondary circuit, said primary circuits being connected in series between the high output terminal and the low output terminal of the three-phase PFC AC converter and said secondary circuits. being connected in parallel, between a high output terminal and a low output terminal of said continuous converter LLC.
    Furthermore, said two DC-DC converter circuits LLC1, LLC2 preferably operate with an interleaving. Furthermore, according to a preferred embodiment, said DC-DC converter circuits LLC1, LLC2 are phase shifted by 90 °.
    According to the invention, means are provided for short-circuiting one of the DC-DC converter circuits LLC1 or LLC2 when the three-phase PFC AC converter is connected to an external single-phase electrical network. With reference to FIG. 3, a switch S1 is also connected between the high output connection point or the low output connection point of the AC-DC converter PFC and the midpoint of the voltage converter circuits. This switch S1 thus makes it possible, when it is controlled in the on state, to short-circuit one of the DC-DC converter circuits LLC1, LLC2. In FIG. 4, it is the LLC1 circuit which can be short-circuited, but it is of course possible to configure the system so that the resonant circuit liable to be short-circuited is the LLC2 resonant circuit.
    Alternatively, instead of a dedicated switch S1, the switches Q7, Q8 or Q9, Q10, can be respectively controlled to short-circuit one of the DC-DC converter circuits LLC1, LLC2.
    The Clinkl, Clink2 capacities located between the input terminals of the first voltage converter circuit LLC1 and between the terminals of the second converter circuit LLC2 have the function of attenuating the ripples of the voltage delivered to the DC-DC converter circuits LLC1 , LLC2.
    As mentioned above, the present invention makes it possible to benefit from a high efficiency of the electric charger system, whether the external electric network supplying the PFC converters is three-phase or single-phase.
    In the first embodiment, in three-phase operating mode, the electric charger system according to the invention is configured so that the two DC-DC converter circuits LLC1, LLC2 receive current delivered by the AC-DC converter PFC. According to the preferred embodiment of Figure 3, the switch S1 is thus controlled in the non-conducting state. The three-phase continuous AC PFC converter operates at full power on its three branches and symmetrically supplies half of this power to each continuous converter circuit LLC1, LLC2.
    For example, for a representative application of a vehicle electric charger system, each phase of the PFC AC converter can process a current of 10 A, the total power delivered by the three-phase PFC AC converter being around 7 kW and the voltage at the output terminals of the AC-DC converter made up of the three PFC converters is typically between 680 V and 870 V. Each DC-DC converter LLC1, LLC2 receives a power of 3.5 kW. a current e 12 A, so that a current of 24 A is obtained at the output of the DC-DC converter made up of the two DC-converter circuits LLC1, LLC2, with a voltage between 220 V and 470 V.
    In single-phase operating mode, the electric charger system according to the invention is configured so that only one of the two continuous converter circuits LLC1, LLC2 receives current delivered by the AC-DC converter PFC. In this case, still according to the embodiment of Figure 3, the switch S1 is controlled in the on state. One of the DC-DC converter circuits, in this case the DC1-DC converter circuit, is short-circuited. Two branches of the three-phase PFC AC converter are used to supply a voltage to the active DC-DC converter circuit in this case LLC2.
    To continue the above application, a single current of 10 A is delivered here. The total power delivered by the AC-DC converter PFC is typically of the order of 2.2 kW and the voltage at the output terminals of the AC-DC three-phase converter is typically between 340 V and 435 V. The second converter circuit DC2 DC-DC - the first DC1 DC-converter circuit being short-circuited, receives the power of 2.2 kW, so that a current of 8 A is obtained at the output of the DC-DC converter, with a output voltage between 220 V and 470 V.
    Furthermore, it should be noted that, in the electric charger system according to the invention, the "ripple" current, in other words the ripple current flowing in the output capacity Cost, common to the two converters of DC-DC voltage LLC1, LLC2, is reduced. The noise is also reduced, which allows the implementation of lower cost, C o capacities at the output of the electric charger system.
    Figure 4 shows a second embodiment of the electric charger system according to the invention, in which the three-phase AC-DC converter is a Vienna V type circuit.
    At the output of the Vienna V type circuit, two switches are connected: the switch K1 makes it possible to short-circuit a DC-DC converter circuit LLC1. In FIG. 4, it is the first DC-DC converter circuit LLC1 which can be short-circuited, but it is of course possible to configure the system so that the resonant circuit likely to be short-circuited is the second converter circuit continuous-continuous LLC2.
    The second switch K2 makes it possible to deliver a current coming from the Vienna V type circuit, taken at a midpoint M of said Vienna V type circuit. The second DC-DC converter circuit comprises a capacitive arm connected between the upper input terminal and lower input terminal of the second DC-DC converter circuit LLC2, and the second switch K2, connected to the intermediate output terminal, is configured to, in the three-phase operating mode, connect the terminal intermediate output with the connection point between the two DC-DC converter circuits LLC1, LLC2 (position A); and, in the single-phase operating mode, connect the intermediate output terminal with a midpoint of the capacitive arm of the second DC-DC converter circuit LLC2 (position B).
    The three-phase and single-phase operating modes of this second exemplary embodiment are, for the rest, identical to what has been described for the first exemplary embodiment. Only, the switch K2 is therefore in position A in the three-phase operating mode and in position B in the single-phase operating mode.
    It should be noted that an advantage induced by the use of a three-phase AC / PFC converter or of a Vienna V type circuit also lies in the fact that, in the three-phase operating mode, there is no it is not necessary that there is a connection to a neutral of the external electrical network.
    It is also recalled that the embodiments described above are not limiting and that the present invention is capable of being implemented according to alternative embodiments within the reach of ordinary skill art.
    权利要求:
    Claims (14)
    [1" id="c-fr-0001]
    1. An electric charger system intended to charge a battery from an external electrical network, in particular intended to be embedded in an electric or hybrid vehicle to charge a battery, driving the vehicle, from an electrical network external to said vehicle, said electrical system comprising:
    a three-phase AC-DC converter (PFC) comprising input terminals intended to be connected to an external electrical network, a high output terminal and a low output terminal, a DC-DC converter, said DC converter DC (LLC) having two DC-DC converter circuits (LLC1, LLC2), a first DC-DC converter circuit (LLC1) having a high input terminal connected to the high output terminal of the AC-DC converter and a second DC-DC converter circuit (LLC2) having a low input terminal connected to the low output terminal of the AC-DC converter (PFC), the low input terminal of the first DC-DC converter circuit (LLC1) being connected to the high input terminal of the second continuous converter circuit (LLC2), and, the high output terminal of the first continuous circuit (LLC1) being connected to the terminal e of the high output of the second DC-DC converter circuit (LLC2) and the low output terminal of the first converter circuit (LLC1) being connected to the low output terminal of the second DC-DC converter circuit (LLC2).
    [2" id="c-fr-0002]
    2. The electric charger system according to claim 1, in which the DC-DC converter is configured so that, in a three-phase operating mode, said first and second DC converter circuits (LLC1, LLC2) receive current supplied by the ac-dc converter (PFC), and so that, in a single-phase operating mode, only one of said first and second dc-dc converter circuits (LLC1, LLC2) receives current supplied by the ac-dc converter (PFC).
    [3" id="c-fr-0003]
    3. Electric charger system according to claim 2, comprising at least one switch (S1, K1) configured to short-circuit the input of one of said first and second DC-DC converter circuits (LLC1, LLC2) in the mode. single-phase operation.
    [4" id="c-fr-0004]
    4. Electric charger system according to claim 3, in which the switch (S1, K1) connects the high output terminal of the ac-dc converter (PFC) or the low output terminal of the ac-dc converter (PFC). connection point between the lower input terminal of the first DC-DC converter circuit (LLC1) and the upper input terminal of the second converter circuit (LLC2), and in which, in the single-phase operating mode, the switch ( S1, K1) is on to short-circuit the input of the DC-DC converter circuit (LLC1) between the input terminals to which the switch (S1, K1) is connected.
    [5" id="c-fr-0005]
    5. Electric charger system according to one of the preceding claims, in which each DC-DC converter circuit (LLC1, LLC2) comprises a primary circuit and a secondary circuit, said primary circuits being connected in series between the high output terminal and the low output terminal of the three-phase ac-dc converter, and said secondary circuits being connected in parallel, between a high output terminal and a low output terminal of said dc-dc converter (LLC).
    [6" id="c-fr-0006]
    6. Electric charger system according to the preceding claim, wherein said first and second DC-DC converter circuits (LLC1, LLC2) each consist of a resonant circuit.
    [7" id="c-fr-0007]
    7. Electric charger system according to one of the preceding claims, in which said first and second DC-DC converter circuits (LLC1, LLC2) are configured to operate with an interleaving.
    [8" id="c-fr-0008]
    8. Electric charger system according to the preceding claim and claim 2, wherein said first and second continuous converter circuits (LLC1, LLC2) are configured to operate with interleaving in the three-phase operating mode.
    [9" id="c-fr-0009]
    9. Electric charger system according to claim 7 or 8, wherein said first and second DC-DC converter circuits (LLC1, LLC2) are 90 ° phase shifted.
    [10" id="c-fr-0010]
    10. Electric charger system according to one of the preceding claims, in which the three-phase AC-DC converter (PFC) comprises at least one inductor per phase, each inductor having a first terminal forming an input terminal of the AC-DC converter. (PFC), and a second terminal connected to an arm, said arm being connected between the high output terminal and the low output terminal of the AC-DC converter of the three-phase AC converter (PFC).
    [11" id="c-fr-0011]
    11. Electric charger system according to the preceding claim, in which each arm comprises two switches (Q1, Q2, Q3, Q4, Q5, Q6) so as to connect the corresponding inductance on the one hand to the high output terminal of the AC-DC converter (PFC), via a respective switch, and on the other hand to the low output terminal of the AC-DC converter (PFC), via a respective switch.
    [12" id="c-fr-0012]
    12. Electric charger system according to one of claims 1 to 10, in which the three-phase AC-DC converter comprises a Vienna type circuit (V) and an intermediate output terminal.
    [13" id="c-fr-0013]
    13. Electric charger system according to the preceding claim and claim 3 or 4, wherein the DC-DC converter circuit (LLC2) which is not short-circuited by the switch (S1, K1) comprises a connected capacitive arm between the high input terminal and the low input terminal of said DC-DC converter circuit (LLC2), the system comprising a second switch (K2) connected to the intermediate output terminal and configured for, in the three-phase operating mode , connect the intermediate output terminal with the connection point between the two DC-DC converter circuits (LLC1, LLC2); and, in the single-phase operating mode, connect the intermediate output terminal with a midpoint of the capacitive arm of the DC-DC converter (LLC2) which is not short-circuited by the switch (S1, K1).
    [14" id="c-fr-0014]
    14. Electric charger system according to any one of the preceding claims, in which the DC-DC converter (LLC) is galvanically isolated.
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    同族专利:
    公开号 | 公开日
    CN108688480A|2018-10-23|
    FR3064832B1|2020-10-30|
    JP2018183037A|2018-11-15|
    EP3386087A1|2018-10-10|
    US20180281609A1|2018-10-04|
    US10926643B2|2021-02-23|
    EP3386087B1|2020-05-13|
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    KR20200009229A|2018-07-18|2020-01-30|현대자동차주식회사|Battery charger for electric vehicle|
    DE102019201706A1|2019-02-11|2020-08-13|Vitesco Technologies GmbH|Vehicle-side charging circuit|
    DE102019106484A1|2019-03-14|2020-09-17|Dr. Ing. H.C. F. Porsche Aktiengesellschaft|Rectifier arrangement|
    DE102019006065A1|2019-08-28|2021-03-04|Kostal Automobil Elektrik Gmbh & Co. Kg|Charging system for direct current charging of the traction battery of an electrically powered motor vehicle|
    KR20210077104A|2019-12-16|2021-06-25|현대자동차주식회사|Power factor correction circuit capable of bidirectional power transfer and charger including the same|
    法律状态:
    2018-04-20| PLFP| Fee payment|Year of fee payment: 2 |
    2018-10-05| PLSC| Search report ready|Effective date: 20181005 |
    2019-04-18| PLFP| Fee payment|Year of fee payment: 3 |
    2020-04-20| PLFP| Fee payment|Year of fee payment: 4 |
    2021-04-29| PLFP| Fee payment|Year of fee payment: 5 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1752862|2017-04-03|
    FR1752862A|FR3064832B1|2017-04-03|2017-04-03|THREE-PHASE AND SINGLE-PHASE ELECTRIC CHARGER SYSTEM FOR ELECTRIC OR HYBRID VEHICLES|FR1752862A| FR3064832B1|2017-04-03|2017-04-03|THREE-PHASE AND SINGLE-PHASE ELECTRIC CHARGER SYSTEM FOR ELECTRIC OR HYBRID VEHICLES|
    CN201710303571.6A| CN108688480A|2017-04-03|2017-05-03|The three-phase or single-phase charger system of electric vehicle or mixed motor-car|
    JP2018055752A| JP2018183037A|2017-04-03|2018-03-23|Three-phase or single-phase electric charger system for electric vehicle or hybrid vehicle|
    EP18164099.6A| EP3386087B1|2017-04-03|2018-03-26|Three-phase and single-phase electric charging system for electric or hybrid vehicle|
    US15/941,493| US10926643B2|2017-04-03|2018-03-30|Electric charger system for electric or hybrid vehicle|
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