JP2018129956A - Vehicle charger - Google Patents

Vehicle charger Download PDF

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JP2018129956A
JP2018129956A JP2017022227A JP2017022227A JP2018129956A JP 2018129956 A JP2018129956 A JP 2018129956A JP 2017022227 A JP2017022227 A JP 2017022227A JP 2017022227 A JP2017022227 A JP 2017022227A JP 2018129956 A JP2018129956 A JP 2018129956A
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charging port
charging
rectifier circuit
phase
power
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勇樹 天間
Yuki Temma
勇樹 天間
竹内　清
Kiyoshi Takeuchi
清 竹内
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Isuzu Motors Ltd
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    • 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
    • Y02T10/72—Electric energy management in electromobility

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle charger capable of charging a secondary cell according to a plurality of types of methods with a circuit configuration of a smaller scale.SOLUTION: The vehicle charger of one embodiment includes: a first charging port connectable with a single-phase AC power supply; a second charging port connectable with a three-phase AC power supply; a rectifier circuit for converting AC into DC supplied through the first charging port or the second charging port; and a secondary cell into which output DC power from the rectifier circuit is charged.SELECTED DRAWING: Figure 1

Description

本開示は、複数種類の方法で二次電池に充電可能な車両用充電装置に関する。   The present disclosure relates to a vehicle charging device capable of charging a secondary battery by a plurality of types of methods.

従来、車両用充電装置としては、三相電源に接続された充電コードを、車両側に設けられた三相コネクタに接続して、車載バッテリに充電を行うものが知られている（例えば特許文献１を参照）。   2. Description of the Related Art Conventionally, as a charging device for a vehicle, a charging cord connected to a three-phase power source is connected to a three-phase connector provided on the vehicle side to charge an in-vehicle battery (for example, patent document) 1).

また、普通充電および急速充電の双方に対応した車両用充電装置も知られている（例えば特許文献２を参照）。   There is also known a vehicular charging apparatus that supports both normal charging and quick charging (see, for example, Patent Document 2).

特開２０１３−２４３８６８号公報JP2013-243868A 特開２０１１−１２６４４１号公報JP 2011-126441 A

本開示の目的は、より小規模な回路構成で、複数種類の方法で二次電池に充電可能な車両用充電装置を提供することである。   An object of the present disclosure is to provide a vehicle charging device that can charge a secondary battery by a plurality of methods with a smaller circuit configuration.

本開示の一形態は、単相交流電源と接続可能な第一充電ポートと、三相交流電源と接続可能な第二充電ポートと、前記第一充電ポートまたは前記第二充電ポートを介して供給される交流を直流に変換する整流回路と、前記整流回路からの出力直流電力が充電される二次電池と、を備えた車両用充電装置に向けられる。   One form of the present disclosure is supplied via a first charging port connectable to a single-phase AC power source, a second charging port connectable to a three-phase AC power source, and the first charging port or the second charging port. The present invention is directed to a vehicle charging apparatus including a rectifier circuit that converts alternating current to direct current and a secondary battery that is charged with output direct current power from the rectifier circuit.

本開示によれば、より小規模な回路構成で、複数種類の方法で二次電池に充電可能な車両用充電装置を提供することが出来る。   According to the present disclosure, it is possible to provide a vehicle charging device that can charge a secondary battery by a plurality of methods with a smaller circuit configuration.

図１は、本開示の車両用充電装置の構成例を示す図である。FIG. 1 is a diagram illustrating a configuration example of a vehicle charging device according to the present disclosure. 図２は、図１の各コネクタの配置位置を示す図である。FIG. 2 is a diagram showing the arrangement positions of the connectors in FIG. 図３は、図１の制御部の処理を示すフロー図である。FIG. 3 is a flowchart showing processing of the control unit in FIG.

以下、上記図面を参照して、本開示の車両用充電装置について詳説する。   Hereinafter, the vehicle charging device of the present disclosure will be described in detail with reference to the drawings.

＜１．定義＞
下表１は、本実施形態で使用される頭字語や略語の意味を示す。 <1. Definition>
Table 1 below shows the meanings of acronyms and abbreviations used in the present embodiment.

Figure 2018129956
Figure 2018129956

＜２．車両用充電装置の構成＞
図１において、車両用充電装置１は、電気推進車両（以下、単に車両という）に搭載される。車両は、例えば、プラグインハイブリッド車や電気自動車であって、キャブオーバー型である。 <2. Configuration of vehicle charging device>
In FIG. 1, a vehicle charging device 1 is mounted on an electric propulsion vehicle (hereinafter simply referred to as a vehicle). The vehicle is, for example, a plug-in hybrid vehicle or an electric vehicle, and is a cab over type.

車両用充電装置１は、少なくとも、充電ポート群１１に含まれる第一および第二充電ポート１１ａ，１１ｂと、整流回路１３と、スイッチ部１５と、二次電池１７と、制御部１９と、を備えている。また、整流回路１３と、二次電池１７との間には、例えば、平滑回路２１および昇圧回路２３等がカスケード接続される。   The vehicle charging device 1 includes at least first and second charging ports 11a and 11b included in the charging port group 11, a rectifier circuit 13, a switch unit 15, a secondary battery 17, and a control unit 19. I have. Further, between the rectifier circuit 13 and the secondary battery 17, for example, a smoothing circuit 21, a booster circuit 23, and the like are cascade-connected.

なお、充電ポート群１１は、周知の急速充電器と接続可能な第三充電ポート１１ｃを含み、第三充電ポート１１ｃと、二次電池１７との間には、急速充電用の充電回路２５が接続される。なお、急速充電用の標準規格としてはＩＥＥＥ Ｓｔａｎｄａｒｄ ２０３０．１．１ＴＭ−２０１５が例示される。また、第三充電ポート１１ｃおよび充電回路２５は周知であり、かつ本開示の要部では無いため、それぞれの説明を省略する。   The charging port group 11 includes a third charging port 11 c that can be connected to a known quick charger, and a charging circuit 25 for quick charging is provided between the third charging port 11 c and the secondary battery 17. Connected. In addition, as a standard for quick charging, IEEE Standard 2030.1.1TM-2015 is exemplified. In addition, the third charging port 11c and the charging circuit 25 are well known and are not essential parts of the present disclosure, and thus description thereof is omitted.

充電ポート群１１において、第一充電ポート１１ａは、所謂普通充電用（ＳＡＥＪ１７７２）のＥＶＳＥコネクタのレセプタクルである。この第一充電ポート１１ａからは、少なくとも、単相交流の二本のラインＬ１１，Ｌ１２が引き出される。なお、第一充電ポート１１ａからは、グランドラインや制御ラインも引き出されるが、これらの図示は省略される。   In the charging port group 11, the first charging port 11 a is a so-called normal charging (SAEJ1772) EVSE connector receptacle. From this first charging port 11a, at least two lines L11 and L12 of single-phase alternating current are drawn. In addition, although a ground line and a control line are drawn out from the first charging port 11a, illustration of these is omitted.

また、充電ポート群１１において、第二充電ポート１１ｂは、三相２００Ｖの電源プラグのレセプタクルである。この第二充電ポート１１ｂからは、少なくとも、三相交流電源の各相ラインＬ２１，Ｌ２２，Ｌ２３が引き出される。   In the charging port group 11, the second charging port 11b is a receptacle for a three-phase 200V power plug. From the second charging port 11b, at least the phase lines L21, L22, L23 of the three-phase AC power supply are drawn out.

なお、充電ポート群１１は、図２に示すように、キャブにおける運転席側ドアＤの周辺に配置されることが好ましい。   In addition, as shown in FIG. 2, it is preferable that the charging port group 11 is arrange | positioned around the driver's seat side door D in a cab.

整流回路１３は、所謂三相全波整流回路である。この整流回路１３は、それぞれが二個のダイオードを直接接続した三つの直列回路１３ａ〜１３ｃを含んでいる。三つの直接回路１３ａ〜１３ｃは、二次電池１７に対して並列に接続される。直列回路１３ａ，１３ｂおよび１３ｃにおけるダイオード間には、ラインＬ２１，Ｌ２２，Ｌ２３が接続される。   The rectifier circuit 13 is a so-called three-phase full-wave rectifier circuit. This rectifier circuit 13 includes three series circuits 13a to 13c each having two diodes directly connected thereto. The three direct circuits 13 a to 13 c are connected in parallel to the secondary battery 17. Lines L21, L22, and L23 are connected between the diodes in series circuits 13a, 13b, and 13c.

また、整流回路１３は、単相全波整流回路としても使用可能にすべく、ラインＬ１１がラインＬ２１に結線され、ラインＬ１２がラインＬ２２に結線される。しかし、これに限らず、二本のラインＬ１１，Ｌ１２の一方は、ラインＬ２１〜Ｌ２３のいずれか一つに結線され、それらの他方は、ラインＬ２１〜Ｌ２３のいずれか他の一つに結線されれば良い。なお、図１に示したように、ラインＬ１１，Ｌ２１のノードには、参照符号Ｎ１を割り当て、ラインＬ１２，Ｌ２２のノードには、参照符号Ｎ２を割り当てる。   The rectifier circuit 13 is connected to the line L21 and the line L12 is connected to the line L22 so that the rectifier circuit 13 can be used as a single-phase full-wave rectifier circuit. However, the present invention is not limited to this, one of the two lines L11 and L12 is connected to any one of the lines L21 to L23, and the other of them is connected to any one of the lines L21 to L23. Just do it. As shown in FIG. 1, the reference symbol N1 is assigned to the nodes of the lines L11 and L21, and the reference symbol N2 is assigned to the nodes of the lines L12 and L22.

上記整流回路１３は、第一充電ポート１１ａまたは第二充電ポート１１ｂを介して自身に供給される交流電圧を直流電圧に変換する。   The rectifier circuit 13 converts an AC voltage supplied to itself through the first charging port 11a or the second charging port 11b into a DC voltage.

スイッチ部１５は、本開示では、後述の制御部１９により開閉が制御される五個のリレー１５ａ〜１５ｅを含む。   In the present disclosure, the switch unit 15 includes five relays 15a to 15e whose opening / closing is controlled by a control unit 19 described later.

リレー１５ａ，１５ｂは、ラインＬ１１，１２上であって、ノードＮ１，Ｎ２よりも第一充電ポート１１ａ側に設けられる。リレー１５ａ，１５ｂがオンの時に、第一充電ポート１１ａにＥＶＳＥが接続されていれば、単相交流電源からの交流電力が整流回路１３に供給される。それに対し、リレー１５ａ，１５ｂがオフであれば、たとえ第一充電ポート１１ａにＥＶＳＥが接続されたとしても、単相交流電源からの交流電力が整流回路１３に供給されない。   Relays 15a and 15b are provided on lines L11 and L12 and closer to first charging port 11a than nodes N1 and N2. If the EVSE is connected to the first charging port 11a when the relays 15a and 15b are on, AC power from the single-phase AC power supply is supplied to the rectifier circuit 13. On the other hand, if the relays 15a and 15b are off, the AC power from the single-phase AC power supply is not supplied to the rectifier circuit 13 even if EVSE is connected to the first charging port 11a.

リレー１５ｃ〜１５ｅは、ラインＬ２１〜Ｌ２３上に設けられる。特に、リレー１５ｃ，１５ｄは、ノードＮ１，Ｎ２よりも第二充電ポート１１ｂ側に設けられる。リレー１５ｃ〜１５ｅがオンの時に、第二充電ポート１１ｂに三相２００Ｖの電源プラグが接続されていれば、三相交流電源からの交流電力が整流回路１３に供給される。それに対し、リレー１５ｃ〜１５ｅがオフであれば、たとえ第二充電ポート１１ｂに電源プラグが接続されたとしても、三相交流電源からの交流電力が整流回路１３に供給されない。   Relays 15c to 15e are provided on lines L21 to L23. In particular, relays 15c and 15d are provided closer to second charging port 11b than nodes N1 and N2. If the three-phase 200V power plug is connected to the second charging port 11b when the relays 15c to 15e are on, AC power from the three-phase AC power is supplied to the rectifier circuit 13. On the other hand, if the relays 15c to 15e are off, the AC power from the three-phase AC power source is not supplied to the rectifier circuit 13 even if the power plug is connected to the second charging port 11b.

平滑回路２１は、整流回路１３の出力電圧を平滑化し、昇圧回路２３は、平滑回路２１の出力電圧を昇圧する。以上のようにして生成された直流電力が二次電池１７に蓄積される。   The smoothing circuit 21 smoothes the output voltage of the rectifier circuit 13, and the booster circuit 23 boosts the output voltage of the smoothing circuit 21. The DC power generated as described above is stored in the secondary battery 17.

制御部１９は、例えば、マイコン等を含むＥＣＵであって、二次電池１７への充電を制御する。   The control unit 19 is an ECU including a microcomputer, for example, and controls charging of the secondary battery 17.

＜３．制御部の処理＞
次に、図３を参照して、制御部１９の処理について説明する。 <3. Processing of control unit>
Next, the processing of the control unit 19 will be described with reference to FIG.

充電が行われていない時（即ち、初期状態）では、全てのリレー１５ａ〜１５ｅはオンの状態にされる。ユーザは、普通充電および三相交流電源を用いた充電のいずれかを選択し、ＥＶＳＥおよび三相２００Ｖの電源プラグのいずれかを、第一充電ポート１１ａおよび第二充電ポート１１ｂのいずれかに接続する。なお、前述の通り、急速充電に関する説明は控える。   When charging is not performed (that is, in an initial state), all the relays 15a to 15e are turned on. The user selects either normal charging or charging using a three-phase AC power source, and connects either EVSE or a three-phase 200V power plug to either the first charging port 11a or the second charging port 11b. To do. Note that, as described above, a description regarding the quick charging is omitted.

制御部１９は、第一充電ポート１１ａにＥＶＳＥが接続されたか、第二充電ポート１１ｂに三相２００Ｖの電源プラグが接続されたかを判断する（ステップＳ００１）。以下、ステップＳ００１の処理の具体例を挙げる。制御部１９は、ＥＶＳＥが第一充電ポート１１ａに接続されたことを、周知のパイロット信号等に基づき判断できる。また、第二充電ポート１１ｂに電源プラグが接続されたことについては、ラインＬ２１〜Ｌ２３に流れる電流や相間電圧を検出することで判断することが出来る。   The control unit 19 determines whether EVSE is connected to the first charging port 11a or whether a three-phase 200V power plug is connected to the second charging port 11b (step S001). Hereinafter, a specific example of the process of step S001 will be described. The control unit 19 can determine that the EVSE is connected to the first charging port 11a based on a known pilot signal or the like. Moreover, it can be determined that the power plug is connected to the second charging port 11b by detecting the current flowing through the lines L21 to L23 and the interphase voltage.

制御部１９は、ステップＳ００１において、第一充電ポート１１ａにＥＶＳＥが接続されたと判断すると、安全性の観点で、制御信号を用いてリレー１５ｃ〜１５ｅをオフにして、第二充電ポート１１ｂへの三相２００Ｖの電源プラグの接続を無意味なものするとともに、普通充電を制御する（ステップＳ００３）。なお、ステップＳ００３において、仮に、リレー１５ｃ〜１５ｅをオフにしなかった場合に、第二充電ポート１１ｂに三相２００Ｖの電源プラグが接続されると、三相交流電源からの交流電力が整流回路１３に供給されてしまう。この場合、整流回路１３に、第一充電ポート１１ａおよび第二充電ポート１１ｂの二系統から交流電力が同時に供給されることになるため、整流回路１３の出力電圧が不安定になる。それゆえ、ステップＳ００３では、リレー１５ｃ〜１５ｅがオフにされることが好ましい。   When determining that the EVSE is connected to the first charging port 11a in step S001, the control unit 19 turns off the relays 15c to 15e using the control signal from the viewpoint of safety, and connects to the second charging port 11b. Connection of the three-phase 200V power plug is made meaningless and normal charging is controlled (step S003). In step S003, if the relays 15c to 15e are not turned off and the three-phase 200V power plug is connected to the second charging port 11b, the AC power from the three-phase AC power supply is converted to the rectifier circuit 13. Will be supplied. In this case, since AC power is simultaneously supplied to the rectifier circuit 13 from the two systems of the first charging port 11a and the second charging port 11b, the output voltage of the rectifier circuit 13 becomes unstable. Therefore, in step S003, it is preferable that the relays 15c to 15e are turned off.

制御部１９は、ステップＳ００１において、第二充電ポート１１ｂに電源プラグが接続されたと判断すると、安全性の観点で、制御信号を用いてリレー１５ａ，１５ｂをオフにして、第一充電ポート１１ａへのＥＶＳＥの接続を無意味なものにするとともに、三相交流電源による充電を制御する（ステップＳ００５）。なお、ステップＳ００５において、仮に、リレー１５ａ，１５ｂをオフにしなかった場合、第一充電ポート１１ａにＥＶＳＥが接続されると、単相交流電源からの交流電力が整流回路１３に供給されてしまう。この場合、整流回路１３に、第一充電ポート１１ａおよび第二充電ポート１１ｂの二系統から交流電力が同時に供給されることになるため、整流回路１３の出力電圧が不安定になる。それゆえ、ステップＳ００５では、リレー１５ａ，１５ｂがオフにされることが好ましい。   When determining that the power plug is connected to the second charging port 11b in step S001, the control unit 19 turns off the relays 15a and 15b using the control signal from the viewpoint of safety, and goes to the first charging port 11a. The EVSE connection is made meaningless, and charging by the three-phase AC power supply is controlled (step S005). In step S005, if the relays 15a and 15b are not turned off, the AC power from the single-phase AC power supply is supplied to the rectifier circuit 13 when EVSE is connected to the first charging port 11a. In this case, since AC power is simultaneously supplied to the rectifier circuit 13 from the two systems of the first charging port 11a and the second charging port 11b, the output voltage of the rectifier circuit 13 becomes unstable. Therefore, in step S005, it is preferable that the relays 15a and 15b are turned off.

制御部１９は、充電が完了したと判断すると（ステップＳ００７）、全リレー１５ａ〜１５ｅをオフにして（ステップＳ００９）、処理を終了する。   When determining that charging is complete (step S007), the control unit 19 turns off all the relays 15a to 15e (step S009), and ends the process.

＜４．作用・効果＞
以上説明した通り、本開示の車両用充電装置１によれば、整流回路１３を、単相交流電源および三相交流電源のいずれから供給された交流電力も直流電力に変換できる。それ故、車両充電装置１を小規模な回路構成とすることが出来る。 <4. Action / Effect>
As described above, according to the vehicle charging device 1 of the present disclosure, the rectifier circuit 13 can convert AC power supplied from either a single-phase AC power source or a three-phase AC power source into DC power. Therefore, the vehicle charging device 1 can have a small circuit configuration.

また、制御部１９がスイッチ部１５を制御することで、普通充電の最中にはリレー１５ｃ〜１５ｅをオフにし、三相交流電源による充電時にはリレー１５ａ，１５ｂをオフにすることで、単相交流電源および三相交流電源の両方から同時に電力が整流回路１３に供給されることを防止出来る。   Further, the control unit 19 controls the switch unit 15 to turn off the relays 15c to 15e during normal charging, and to turn off the relays 15a and 15b at the time of charging with a three-phase AC power source. It is possible to prevent electric power from being supplied to the rectifier circuit 13 simultaneously from both the AC power supply and the three-phase AC power supply.

また、本開示では、充電ポート群１１がキャブにおける運転席側ドアの周辺に配置されるため、車両発進時にＥＶＳＥ等を運転者が抜き忘れることを防止出来る。   In the present disclosure, since the charging port group 11 is arranged around the driver's seat side door in the cab, it is possible to prevent the driver from forgetting to pull out EVSE or the like when starting the vehicle.

本開示の車両用充電装置は、より小規模な回路構成で、複数種類の方法で二次電池に充電可能であり、キャブオーバー型等の電気推進車両等に好適である。   The vehicle charging device of the present disclosure can charge a secondary battery by a plurality of methods with a smaller circuit configuration and is suitable for a cab-over type electric propulsion vehicle or the like.

１ 車両用充電装置
１１ 充電ポート群
１１ａ 第一充電ポート
１１ｂ 第二充電ポート
１３ 整流回路
１５ スイッチ部
１７ 二次電池
１９ 制御部 DESCRIPTION OF SYMBOLS 1 Vehicle charging device 11 Charging port group 11a 1st charging port 11b 2nd charging port 13 Rectifier circuit 15 Switch part 17 Secondary battery 19 Control part

Claims (4)

単相交流電源と接続可能な第一充電ポートと、
三相交流電源と接続可能な第二充電ポートと、
前記第一充電ポートまたは前記第二充電ポートを介して供給される交流を直流に変換する整流回路と、
前記整流回路からの出力直流電力が充電される二次電池と、
を備えた車両用充電装置。 A first charging port that can be connected to a single-phase AC power supply;
A second charging port connectable to a three-phase AC power source;
A rectifier circuit that converts alternating current supplied through the first charging port or the second charging port into direct current;
A secondary battery charged with the output DC power from the rectifier circuit;
A vehicle charging device comprising: 前記整流回路は、前記第二充電ポートを介して供給された交流を直流に変換可能な三相全波整流回路であって、
前記第一充電ポートから引き出された二線の一方は前記第二充電ポートのある一線に、前記二線の他方は前記第二充電ポートの別の一線に接続される、
請求項１に記載の車両用充電装置。 The rectifier circuit is a three-phase full-wave rectifier circuit capable of converting alternating current supplied via the second charging port into direct current,
One of the two wires drawn out from the first charging port is connected to one wire having the second charging port, and the other of the two wires is connected to another wire of the second charging port,
The vehicle charging device according to claim 1. 前記第一充電ポートおよび前記第二充電ポートの一方から前記整流回路へと電力供給が行われている最中に、前記第一充電ポートおよび前記第二充電ポートの他方から前記整流回路への電力供給を遮断するスイッチ部、
をさらに備えた請求項１に記載の車両用充電装置。 While power is being supplied from one of the first charging port and the second charging port to the rectifier circuit, power from the other of the first charging port and the second charging port to the rectifier circuit Switch part to cut off the supply,
The vehicle charging device according to claim 1, further comprising: 前記第一充電ポートおよび前記第二充電ポートは、運転席側ドアの周辺に配置される、
請求項１に記載の車両用充電装置。 The first charging port and the second charging port are disposed around the driver's seat side door,
The vehicle charging device according to claim 1.
JP2017022227A 2017-02-09 2017-02-09 Vehicle charger Pending JP2018129956A (en)

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