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JP7131028B2 - vehicle power supply - Google Patents

vehicle power supply Download PDF

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Publication number
JP7131028B2
JP7131028B2 JP2018068350A JP2018068350A JP7131028B2 JP 7131028 B2 JP7131028 B2 JP 7131028B2 JP 2018068350 A JP2018068350 A JP 2018068350A JP 2018068350 A JP2018068350 A JP 2018068350A JP 7131028 B2 JP7131028 B2 JP 7131028B2
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switch
power supply
vehicle
connection path
charging port
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JP2019180157A (en
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友晴 山本
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Suzuki Motor Co Ltd
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Suzuki Motor Co Ltd
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Priority to JP2018068350A priority Critical patent/JP7131028B2/en
Priority to DE102019204332.1A priority patent/DE102019204332B4/en
Priority to CN201910245589.4A priority patent/CN110323796A/en
Priority to FR1903263A priority patent/FR3079463B1/en
Publication of JP2019180157A publication Critical patent/JP2019180157A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/11—DC charging controlled by the charging station, e.g. mode 4
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
    • B60L53/24—Using the vehicle's propulsion converter for charging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage

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

Description

本発明は、車両用電源装置に関する。 The present invention relates to a vehicle power supply device.

車載回路に混入するノイズを低減可能なインバータ装置が知られている。特許文献１では、直流電源からインバータに供給される電力に含まれるノイズを低減する為に、コンデンサを含むノイズ低減の回路を形成している。 2. Description of the Related Art There is known an inverter device capable of reducing noise mixed in an in-vehicle circuit. In Patent Document 1, a noise reduction circuit including a capacitor is formed in order to reduce noise contained in power supplied from a DC power supply to an inverter.

特開２０１７－１８４３２８号公報JP 2017-184328 A

しかしながら、車両外部に設置された充電設備の電源から充電口を介して車両内部の電源に充電する場合に、充電経路上にノイズ低減回路が設置されていると、その回路中のキャパシタへ蓄電される。万が一キャパシタから充電口及び充電設備までの経路上で地絡すると、キャパシタに蓄積された電荷がキャパシタから放電する可能性があった。 However, when charging the power supply inside the vehicle from the power supply of the charging facility installed outside the vehicle through the charging port, if a noise reduction circuit is installed on the charging path, the capacitor in the circuit will store the electricity. be. In the unlikely event that a ground fault occurs on the path from the capacitor to the charging port and charging equipment, the charges accumulated in the capacitor may be discharged from the capacitor.

そこで、本発明は、車両内部の電源と直流電源の充電口との接続経路上に設置されたキャパシタが放電することを防止することができる車両用電源装置を提供することを目的としている。 SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a vehicle power supply device capable of preventing discharge of a capacitor installed on a connection path between a power supply inside a vehicle and a charging port of a DC power supply.

上記課題を解決するため本発明は、車両に備えられた直流電源の充電口を介して車両外部の電源から車両内部の電源へ電力を供給する車両用電源装置であって、前記直流電源の充電口の正極と負極との間に接続されるキャパシタと、前記車両内部の電源と接続される電装負荷と、前記車両内部の電源の正極と前記キャパシタとの接続経路を開閉する第一スイッチと、前記車両内部の電源の正極と前記電装負荷との接続経路を開閉する第二スイッチと、前記車両内部の電源の正極と前記直流電源の充電口の正極との接続経路を開閉する第三スイッチと、前記車両内部の電源の負極と前記キャパシタとの接続経路を開閉する第四スイッチと、前記車両内部の電源の負極と前記電装負荷との接続経路を開閉する第五スイッチと、前記車両内部の電源の負極と前記直流電源の充電口の負極との接続経路を開閉する第六スイッチと、前記第一スイッチと前記第二スイッチと前記第三スイッチと前記第四スイッチと前記第五スイッチと前記第六スイッチの開閉を制御する制御部と、を備え、前記キャパシタは前記第一スイッチと前記第四スイッチの間に接続され、前記電装負荷は前記第二スイッチと前記第五スイッチの間に接続され、前記制御部は、前記車両外部の電源から前記直流電源の充電口を介して前記車両内部の電源を充電する際に、前記第一スイッチと前記第四スイッチを開状態とするものである。
In order to solve the above-mentioned problems, the present invention provides a vehicle power supply device that supplies electric power from a power supply outside the vehicle to a power supply inside the vehicle via a charging port of a DC power supply provided in the vehicle, wherein the DC power supply is charged. a capacitor connected between a positive electrode and a negative electrode of a port; an electrical load connected to a power source inside the vehicle; a first switch opening and closing a connection path between the positive electrode of the power source inside the vehicle and the capacitor; a second switch that opens and closes a connection path between the positive pole of the power supply inside the vehicle and the electrical load; and a third switch that opens and closes a connection path between the positive pole of the power supply inside the vehicle and the positive pole of the charging port of the DC power supply. a fourth switch for opening and closing a connection path between the negative pole of the power supply inside the vehicle and the capacitor; a fifth switch for opening and closing a connection path between the negative pole of the power supply inside the vehicle and the electrical load; a sixth switch that opens and closes a connection path between the negative electrode of the power supply and the negative electrode of the charging port of the DC power supply; the first switch, the second switch, the third switch, the fourth switch, the fifth switch, and the a control unit that controls opening and closing of a sixth switch , wherein the capacitor is connected between the first switch and the fourth switch, and the electrical load is connected between the second switch and the fifth switch. The control unit opens the first switch and the fourth switch when charging the power supply inside the vehicle from the power supply outside the vehicle through the charging port of the DC power supply. be.

このように、本発明によれば、車両内部の電源と直流電源の充電口との接続経路上に設置されたキャパシタが放電することを防止することができる。 Thus, according to the present invention, it is possible to prevent the capacitor installed on the connection path between the power supply inside the vehicle and the charging port of the DC power supply from discharging.

図１は、本発明の一実施例に係る車両用電源装置のブロック図である。FIG. 1 is a block diagram of a vehicle power supply device according to an embodiment of the present invention. 図２は、本発明の一実施例に係る車両用電源装置の回路図である。FIG. 2 is a circuit diagram of a vehicle power supply device according to an embodiment of the present invention. 図３は、本発明の一実施例に係る車両用電源装置のスイッチの変化を示すタイムチャートである。FIG. 3 is a time chart showing changes in the switches of the vehicle power supply device according to one embodiment of the present invention.

本発明の一実施の形態に係る車両用電源装置は、車両に備えられた直流電源の充電口を介して車両外部の電源から車両内部の電源へ電力を供給する車両用電源装置であって、直流電源の充電口の正極と負極との間に接続されるキャパシタと、車両内部の電源と接続される電装負荷と、車両内部の電源の正極とキャパシタとの接続経路を開閉する第一スイッチと、車両内部の電源の正極と電装負荷との接続経路を開閉する第二スイッチと、車両内部の電源の正極と直流電源の充電口の正極との接続経路を開閉する第三スイッチと、車両内部の電源の負極とキャパシタとの接続経路を開閉する第四スイッチと、車両内部の電源の負極と電装負荷との接続経路を開閉する第五スイッチと、車両内部の電源の負極と直流電源の充電口の負極との接続経路を開閉する第六スイッチと、を備え、キャパシタは第一スイッチと第四スイッチの間に接続され、電装負荷は第二スイッチと第五スイッチの間に接続されるよう構成されている。 A vehicle power source device according to an embodiment of the present invention is a vehicle power source device that supplies electric power from a power source outside the vehicle to a power source inside the vehicle via a charging port of a DC power supply provided in the vehicle, A capacitor connected between the positive and negative terminals of a charging port of a DC power supply, an electrical load connected to a power supply inside the vehicle, and a first switch that opens and closes a connection path between the positive terminal of the power supply inside the vehicle and the capacitor. a second switch that opens and closes the connection path between the positive pole of the power supply inside the vehicle and the electrical load; a third switch that opens and closes the connection path between the positive pole of the power supply inside the vehicle and the positive pole of the charging port of the DC power supply; A fourth switch that opens and closes the connection path between the negative electrode of the power supply inside the vehicle and the capacitor, a fifth switch that opens and closes the connection path between the negative electrode of the power supply inside the vehicle and the electrical load, and a charging of the negative electrode of the power supply inside the vehicle and the DC power supply. a sixth switch that opens and closes the connection path with the negative electrode of the terminal, the capacitor is connected between the first switch and the fourth switch, and the electrical load is connected between the second switch and the fifth switch. It is configured.

これにより、車両内部の電源と直流電源の充電口との接続経路上に設置されたキャパシタが放電することを防止することができる。 This can prevent the capacitor installed on the connection path between the power supply inside the vehicle and the charging port of the DC power supply from discharging.

以下、図面を参照して、本発明の実施例に係る車両用電源装置について詳細に説明する。 DETAILED DESCRIPTION OF THE INVENTION Vehicle power supply devices according to embodiments of the present invention will now be described in detail with reference to the drawings.

図１において、本発明の一実施例に係る車両用電源装置を搭載した車両１は、モータ２と、インバータ３と、電装負荷４と、バッテリパック５と、制御部６と、を含んで構成される。 In FIG. 1, a vehicle 1 equipped with a vehicle power supply device according to an embodiment of the present invention includes a motor 2, an inverter 3, an electrical load 4, a battery pack 5, and a controller 6. be done.

モータ２は、例えば、複数の永久磁石が埋め込まれたロータと、ステータコイルが巻きつけられたステータと、を備えた同期型モータで構成される。モータ２は、ステータコイルに三相交流電圧が印加されることでステータに回転磁界が形成され、この回転磁界によりロータが回転して駆動力を生成する。 The motor 2 is, for example, a synchronous motor including a rotor in which a plurality of permanent magnets are embedded and a stator around which stator coils are wound. In the motor 2, a rotating magnetic field is formed in the stator by applying a three-phase AC voltage to the stator coil, and the rotating magnetic field rotates the rotor to generate driving force.

インバータ３は、制御部６の制御により三相交流電圧をモータ２に供給する。インバータ３は、制御部６から入力されるトルク指令値に基づいて三相交流電圧を生成してモータ２に出力する。 The inverter 3 supplies a three-phase AC voltage to the motor 2 under the control of the control unit 6 . The inverter 3 generates a three-phase AC voltage based on the torque command value input from the control unit 6 and outputs the three-phase AC voltage to the motor 2 .

電装負荷４は、車両１に搭載され、バッテリパック５から供給される電力で動作する各種の装置からなり、例えば、オーディオ装置、ナビゲーション装置、空調装置、計器類の表示装置及びヘッドランプなどの照明装置を含む。 The electrical load 4 is mounted on the vehicle 1 and includes various devices that operate with power supplied from the battery pack 5. For example, the electrical load 4 includes an audio device, a navigation device, an air-conditioning device, a display device for instruments, and lighting such as a headlamp. Including equipment.

バッテリパック５は、インバータ３や電装負荷４などに電力を供給する。バッテリパック５は、例えば、ニッケル蓄電池やリチウム蓄電池等からなる電源としてのバッテリ５１（図２参照）を備えている。 The battery pack 5 supplies power to the inverter 3, the electrical load 4, and the like. The battery pack 5 includes a battery 51 (see FIG. 2) as a power source, such as a nickel storage battery or a lithium storage battery.

バッテリパック５には、インバータ３や電装負荷４が並列に接続されている。バッテリパック５には、インバータ３や電装負荷４と並列に、充電器７が接続されている。充電器７は、交流電源の充電口としての普通充電口８に供給される交流の電力を直流の電力に変換する。 The inverter 3 and the electrical load 4 are connected in parallel to the battery pack 5 . A charger 7 is connected to the battery pack 5 in parallel with the inverter 3 and the electrical load 4 . The charger 7 converts AC power supplied to a normal charging port 8 as a charging port for an AC power source into DC power.

バッテリパック５には、車両１外部に設置された充電設備の直流電源１０の充電コネクタが接続されることにより、直流電源１０から供給された電力によりバッテリ５１（図２参照）を充電する、直流電源１０の充電口としての急速充電口９が設けられている。急速充電口９は、直流電源１０の充電コネクタが接続されているか否かを検出して、制御部６に通知するようになっている。 A charging connector of a DC power supply 10 of a charging facility installed outside the vehicle 1 is connected to the battery pack 5 to charge a battery 51 (see FIG. 2) with power supplied from the DC power supply 10. A quick charging port 9 as a charging port for the power supply 10 is provided. The quick charging port 9 detects whether or not the charging connector of the DC power supply 10 is connected, and notifies the control section 6 of this.

バッテリパック５には、バッテリ５１（図２参照）の電圧を検出する不図示の電圧センサ、バッテリ５１の温度を検出する不図示の温度センサ、バッテリ５１の充電電流及び放電電流を検出する不図示の電流センサなどが設けられている。 The battery pack 5 includes a voltage sensor (not shown) that detects the voltage of the battery 51 (see FIG. 2), a temperature sensor (not shown) that detects the temperature of the battery 51, and a charging current and discharging current (not shown) of the battery 51. A current sensor and the like are provided.

制御部６は、ＣＰＵ（Central Processing Unit）と、ＲＡＭ（Random Access Memory）と、ＲＯＭ（Read Only Memory）と、フラッシュメモリと、入力ポートと、出力ポートとを備えたコンピュータユニットによって構成されている。 The control unit 6 is composed of a computer unit having a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), a flash memory, an input port, and an output port. .

制御部６のＲＯＭには、各種制御定数や各種マップ等とともに、当該コンピュータユニットを制御部６として機能させるためのプログラムが記憶されている。すなわち、ＣＰＵがＲＯＭに記憶されたプログラムを実行することにより、当該コンピュータユニットは、制御部６として機能する。 The ROM of the controller 6 stores a program for causing the computer unit to function as the controller 6 together with various control constants, various maps, and the like. That is, the computer unit functions as the control section 6 by the CPU executing the program stored in the ROM.

制御部６の入力ポートには、上述の急速充電口９と、電圧センサと、温度センサと、電流センサとを含む各種センサ類が接続されている。一方、制御部６の出力ポートには、インバータ３と、電装負荷４と、バッテリパック５とを含む各種制御対象類が接続されている。 An input port of the control unit 6 is connected to various sensors including the quick charge port 9 described above, a voltage sensor, a temperature sensor, and a current sensor. On the other hand, the output port of the control unit 6 is connected to various control objects including the inverter 3 , the electrical load 4 and the battery pack 5 .

図２において、インバータ３には、インバータ３に供給される電力に含まれるノイズを低減するために、キャパシタ３１、キャパシタ３２、キャパシタ３３を含むノイズ低減回路が設けられている。 In FIG. 2, the inverter 3 is provided with a noise reduction circuit including capacitors 31, 32 and 33 in order to reduce noise contained in the power supplied to the inverter 3. FIG.

バッテリ５１の正極とインバータ３との接続経路には、この接続経路を開閉する第一スイッチ１１が接続されている。バッテリ５１の正極と電装負荷４との接続経路には、この接続経路を開閉する第二スイッチ１２が接続されている。バッテリ５１の正極と急速充電口９の正極との接続経路には、この接続経路を開閉する第三スイッチ１３が接続されている。 A connection path between the positive electrode of the battery 51 and the inverter 3 is connected to a first switch 11 that opens and closes the connection path. A connection path between the positive electrode of the battery 51 and the electrical load 4 is connected to a second switch 12 that opens and closes the connection path. A connection path between the positive electrode of the battery 51 and the positive electrode of the quick charge port 9 is connected to a third switch 13 that opens and closes this connection path.

バッテリ５１の負極とインバータ３との接続経路には、この接続経路を開閉する第四スイッチ１４が接続されている。バッテリ５１の負極と電装負荷４との接続経路には、この接続経路を開閉する第五スイッチ１５が接続されている。バッテリ５１の負極と急速充電口９の負極との接続経路には、この接続経路を開閉する第六スイッチ１６が接続されている。 A connection path between the negative electrode of the battery 51 and the inverter 3 is connected to a fourth switch 14 that opens and closes this connection path. A connection path between the negative electrode of the battery 51 and the electrical load 4 is connected to a fifth switch 15 that opens and closes the connection path. A connection path between the negative electrode of the battery 51 and the negative electrode of the quick charge port 9 is connected to a sixth switch 16 that opens and closes this connection path.

インバータ３は、第一スイッチ１１と第四スイッチ１４との間に接続されている。電装負荷４は、第二スイッチ１２と第五スイッチ１５との間に接続されている。 The inverter 3 is connected between the first switch 11 and the fourth switch 14 . The electrical load 4 is connected between the second switch 12 and the fifth switch 15 .

充電器７の正極は、第二スイッチ１２と電装負荷４との接続経路に接続され、充電器７の負極は、第五スイッチ１５と電装負荷４との接続経路に接続されている。 The positive electrode of the charger 7 is connected to the connection path between the second switch 12 and the electrical load 4 , and the negative electrode of the charger 7 is connected to the connection path between the fifth switch 15 and the electrical load 4 .

第一スイッチ１１、第二スイッチ１２、第三スイッチ１３、第四スイッチ１４、第五スイッチ１５、第六スイッチ１６は、制御部６によりオン（閉状態）オフ（開状態）される。 The first switch 11 , the second switch 12 , the third switch 13 , the fourth switch 14 , the fifth switch 15 , and the sixth switch 16 are turned on (closed) and off (open) by the controller 6 .

制御部６は、急速充電口９に車両１外部の直流電源１０の充電コネクタが接続されたことを検出すると、第一スイッチ１１と第四スイッチ１４を開状態とする。 When the controller 6 detects that the charging connector of the DC power supply 10 outside the vehicle 1 is connected to the quick charging port 9, the controller 6 opens the first switch 11 and the fourth switch 14 .

制御部６は、急速充電口９に車両１外部の直流電源１０の充電コネクタが接続されたことを検出すると、第二スイッチ１２と第三スイッチ１３と第五スイッチ１５と第六スイッチ１６を閉状態とする。 When the control unit 6 detects that the charging connector of the DC power supply 10 outside the vehicle 1 is connected to the quick charging port 9, the control unit 6 closes the second switch 12, the third switch 13, the fifth switch 15, and the sixth switch 16. state.

このようにすることで、急速充電口９からの充電中に、キャパシタ３１、キャパシタ３２、キャパシタ３３を充電経路から切り離すことができ、キャパシタ３１、キャパシタ３２、キャパシタ３３から放電することを防止することができる。キャパシタ３１、キャパシタ３２、キャパシタ３３からの放電を防止することにより、キャパシタ３１、キャパシタ３２、キャパシタ３３から車両１の急速充電口９及び直流電源１０の充電設備までの経路上での漏電を防止することができる。 By doing so, the capacitors 31, 32, and 33 can be disconnected from the charging path during charging from the quick charging port 9, and discharging from the capacitors 31, 32, and 33 can be prevented. can be done. By preventing discharge from the capacitors 31, 32, and 33, leakage on the path from the capacitors 31, 32, and 33 to the quick charging port 9 of the vehicle 1 and the charging facility of the DC power supply 10 is prevented. be able to.

また、急速充電口９からの充電中に、電装負荷４へ電力を供給することができ、エアコンやヒーター等の電装品を使用しながら充電を行なえる。 Further, electric power can be supplied to the electrical load 4 during charging from the quick charging port 9, and charging can be performed while using electrical components such as an air conditioner and a heater.

以上のように構成された本実施例に係る車両用電源装置による動作について図３を参照して説明する。 The operation of the vehicle power supply apparatus according to the present embodiment configured as described above will be described with reference to FIG.

図３において、時刻ｔ１でイグニッションスイッチがオフされると、第一スイッチ１１と第二スイッチ１２と第四スイッチ１４と第五スイッチ１５がオフされる。 In FIG. 3, when the ignition switch is turned off at time t1, the first switch 11, the second switch 12, the fourth switch 14 and the fifth switch 15 are turned off.

時刻ｔ２において、車両１外部の直流電源１０の充電コネクタが急速充電口９に接続され、充電開始の操作が完了すると、給電状態がオンにされる。 At time t2, the charging connector of the DC power supply 10 outside the vehicle 1 is connected to the quick charging port 9, and when the charging start operation is completed, the power supply state is turned on.

給電状態がオンにされると、時刻ｔ３において、第二スイッチ１２と第三スイッチ１３と第五スイッチ１５と第六スイッチ１６がオンされる。 When the power supply state is turned on, the second switch 12, the third switch 13, the fifth switch 15, and the sixth switch 16 are turned on at time t3.

時刻ｔ４において、充電が完了すると、給電状態がオフにされる。給電状態がオフにされると、時刻ｔ５において、充電経路のスイッチが全てオフされる。 At time t4, when charging is completed, the power supply state is turned off. When the power supply state is turned off, all switches in the charging path are turned off at time t5.

時刻ｔ６において、イグニッションスイッチがオンされると、第一スイッチ１１と第二スイッチ１２と第四スイッチ１４と第五スイッチ１５がオンされ、バッテリ５１からインバータ３、電装負荷４へ電力が供給される。 At time t6, when the ignition switch is turned on, the first switch 11, the second switch 12, the fourth switch 14, and the fifth switch 15 are turned on, and power is supplied from the battery 51 to the inverter 3 and the electrical load 4. .

本発明の実施例を開示したが、当業者によっては本発明の範囲を逸脱することなく変更が加えられうることは明白である。すべてのこのような修正及び等価物が次の請求項に含まれることが意図されている。 Although embodiments of the present invention have been disclosed, it will be apparent that modifications may be made by those skilled in the art without departing from the scope of the invention. All such modifications and equivalents are intended to be included in the following claims.

１ 車両
４ 電装負荷
６ 制御部
７ 充電器
８ 普通充電口（交流電源の充電口）
９ 急速充電口（直流電源の充電口）
１０ 直流電源
１１ 第一スイッチ
１２ 第二スイッチ
１３ 第三スイッチ
１４ 第四スイッチ
１５ 第五スイッチ
１６ 第六スイッチ
３１、３２、３３ キャパシタ
５１ バッテリ（電源） 1 Vehicle 4 Electrical Load 6 Control Unit 7 Charger 8 Ordinary Charging Port (AC Power Charging Port)
9 Quick charging port (DC power charging port)
10 DC power supply 11 First switch 12 Second switch 13 Third switch 14 Fourth switch 15 Fifth switch 16 Sixth switch 31, 32, 33 Capacitor 51 Battery (power supply)

Claims (3)

車両に備えられた直流電源の充電口を介して車両外部の電源から車両内部の電源へ電力を供給する車両用電源装置であって、
前記直流電源の充電口の正極と負極との間に接続されるキャパシタと、
前記車両内部の電源と接続される電装負荷と、
前記車両内部の電源の正極と前記キャパシタとの接続経路を開閉する第一スイッチと、
前記車両内部の電源の正極と前記電装負荷との接続経路を開閉する第二スイッチと、
前記車両内部の電源の正極と前記直流電源の充電口の正極との接続経路を開閉する第三スイッチと、
前記車両内部の電源の負極と前記キャパシタとの接続経路を開閉する第四スイッチと、
前記車両内部の電源の負極と前記電装負荷との接続経路を開閉する第五スイッチと、
前記車両内部の電源の負極と前記直流電源の充電口の負極との接続経路を開閉する第六スイッチと、
前記第一スイッチと前記第二スイッチと前記第三スイッチと前記第四スイッチと前記第五スイッチと前記第六スイッチの開閉を制御する制御部と、を備え、
前記キャパシタは前記第一スイッチと前記第四スイッチの間に接続され、前記電装負荷は前記第二スイッチと前記第五スイッチの間に接続され、
前記制御部は、前記車両外部の電源から前記直流電源の充電口を介して前記車両内部の電源を充電する際に、前記第一スイッチと前記第四スイッチを開状態とする車両用電源装置。 A vehicle power supply device that supplies electric power from a power supply outside the vehicle to a power supply inside the vehicle via a charging port of a DC power supply provided in the vehicle,
a capacitor connected between a positive electrode and a negative electrode of the charging port of the DC power supply;
an electrical load connected to the power supply inside the vehicle;
a first switch that opens and closes a connection path between the positive electrode of the power supply inside the vehicle and the capacitor;
a second switch that opens and closes a connection path between the positive electrode of the power source inside the vehicle and the electrical load;
a third switch that opens and closes a connection path between the positive electrode of the power supply inside the vehicle and the positive electrode of the charging port of the DC power supply;
a fourth switch that opens and closes a connection path between the negative electrode of the power supply inside the vehicle and the capacitor;
a fifth switch that opens and closes a connection path between the negative electrode of the power supply inside the vehicle and the electrical load;
a sixth switch that opens and closes a connection path between the negative electrode of the power supply inside the vehicle and the negative electrode of the charging port of the DC power supply;
A control unit that controls opening and closing of the first switch, the second switch, the third switch, the fourth switch, the fifth switch, and the sixth switch ,
the capacitor is connected between the first switch and the fourth switch, the electrical load is connected between the second switch and the fifth switch ,
The control unit is configured to open the first switch and the fourth switch when the power supply inside the vehicle is charged from the power supply outside the vehicle through the charging port of the DC power supply. . 前記制御部は、前記車両外部の電源から前記直流電源の充電口を介して前記車両内部の電源を充電する際に、前記第二スイッチと前記第三スイッチと前記第五スイッチと前記第六スイッチを閉状態とする請求項１に記載の車両用電源装置。 When the power source inside the vehicle is charged from the power source outside the vehicle through the charging port of the DC power source, the control unit controls the second switch, the third switch, the fifth switch, and the third switch when charging the power source inside the vehicle. 2. The vehicle power supply device according to claim 1, wherein the six switches are closed. 交流電源の充電口と、
前記交流電源の充電口に供給される交流電力を直流電力に変換する充電器と、を備え、
前記充電器の正極は、前記第二スイッチと前記電装負荷との接続経路に接続され、前記充電器の負極は、前記第五スイッチと前記電装負荷との接続経路に接続される請求項１または請求項２に記載の車両用電源装置。 AC power charging port;
a charger that converts AC power supplied to the charging port of the AC power supply into DC power,
2. The positive electrode of the charger is connected to the connection path between the second switch and the electrical load, and the negative electrode of the charger is connected to the connection path between the fifth switch and the electrical load. The vehicle power supply device according to claim 2 .
JP2018068350A 2018-03-30 2018-03-30 vehicle power supply Active JP7131028B2 (en)

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