JP2014045603A - Inverter device - Google Patents
Inverter device Download PDFInfo
- Publication number
- JP2014045603A JP2014045603A JP2012187308A JP2012187308A JP2014045603A JP 2014045603 A JP2014045603 A JP 2014045603A JP 2012187308 A JP2012187308 A JP 2012187308A JP 2012187308 A JP2012187308 A JP 2012187308A JP 2014045603 A JP2014045603 A JP 2014045603A
- Authority
- JP
- Japan
- Prior art keywords
- constant voltage
- battery
- drive circuit
- voltage power
- power supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Control Of Ac Motors In General (AREA)
- Inverter Devices (AREA)
Abstract
Description
この発明は、直流電力を交流電力に変換して電動機へ駆動電力を供給するインバータ装置に関するものである。 The present invention relates to an inverter device that converts DC power into AC power and supplies drive power to an electric motor.
近年、内燃機関の出力を増加させるために吸気通路上に電動過給機を設けた車両や電気自動車など、電動機により駆動される車両が開発されている。そして、この車両に電動機へ駆動電力を供給するためにインバータ装置が搭載されている。
前記インバータ装置は、駆動用バッテリによって高電圧で大電流の電力が供給される駆動回路部と、鉛バッテリで構成される制御用バッテリによって電力が供給される制御回路部や車載電機器で構成されており、駆動用バッテリから電力供給された駆動回路部の一部が短絡した状態で、駆動用バッテリと駆動回路部間のリレーを接続または接続を継続すると、大電流により電源ケーブルや駆動回路部が発煙、発火する恐れがある。
In recent years, in order to increase the output of an internal combustion engine, vehicles driven by an electric motor such as a vehicle provided with an electric supercharger on an intake passage and an electric vehicle have been developed. An inverter device is mounted to supply driving power to the motor to the vehicle.
The inverter device includes a drive circuit unit that is supplied with high-voltage and high-current power by a drive battery, a control circuit unit that is supplied with power by a control battery including a lead battery, and an in-vehicle electric device. When a relay between the drive battery and the drive circuit unit is connected or connected in a state where a part of the drive circuit unit supplied with power from the drive battery is short-circuited, a large current causes a power cable or drive circuit unit May cause smoke or fire.
例えば特開２０１０−１４８３１８号公報（特許文献１）には、第１直流電源装置と第２直流電源装置の間にＤＣ／ＤＣコンバータを設け、このＤＣ／ＤＣコンバータに接続された電流センサに流れる過電流を検出し、ＤＣ／ＤＣ駆動用バッテリのリレーを開閉することで、過電流が連続して流れることを防止する技術が開示されている。 For example, in JP 2010-148318 A (Patent Document 1), a DC / DC converter is provided between a first DC power supply device and a second DC power supply device, and the current flows through a current sensor connected to the DC / DC converter. A technique is disclosed in which overcurrent is prevented from flowing continuously by detecting an overcurrent and opening and closing a relay of a DC / DC drive battery.
また、例えば特開平９−２８４９０２号公報（特許文献２）には、駆動用バッテリとコントローラの間に大電流用と小電流用の２系統のヒューズとリレーを備え、バッテリ末期の短絡電流が低下した状況でもヒューズが切れるようにして短絡の発生を防止する技術が開示されている。 Further, for example, in Japanese Patent Laid-Open No. 9-284902 (Patent Document 2), a two-system fuse and a relay for large current and small current are provided between a driving battery and a controller, and the short-circuit current at the end of the battery is reduced. In such a situation, a technique for preventing the occurrence of a short circuit by blowing a fuse is disclosed.
しかし、前記特許文献１に開示されたＤＣ／ＤＣコンバータシステムでは、過電流を検出するまで高圧の第１直流電源装置を短絡し、大電流が流れ続ける問題がある。また、ＤＣ／ＤＣコンバータや電流センサが必要となる。 However, the DC / DC converter system disclosed in Patent Document 1 has a problem in that a high current continues to flow by short-circuiting the high-voltage first DC power supply device until an overcurrent is detected. In addition, a DC / DC converter and a current sensor are required.
また、前記特許文献２に開示された電気自動車の短絡検出回路では、短絡検出回路を構成する部品が中途半端な故障をした場合、ヒューズが溶断せず、駆動用バッテリから過電流が流れ続けるという問題がある。 In addition, in the short circuit detection circuit for an electric vehicle disclosed in Patent Document 2, if a component constituting the short circuit detection circuit fails halfway, the fuse does not blow and overcurrent continues to flow from the drive battery. There's a problem.
この発明は、前記の課題に鑑み、駆動回路部が短絡した場合、電動機の停止中、駆動中に関わらず小電流で安全に短絡を検出できるインバータ装置を提供するものである。 In view of the above-described problems, the present invention provides an inverter device that can detect a short circuit safely with a small current regardless of whether the motor is stopped or driven when the drive circuit unit is short-circuited.
この発明に係るインバータ装置は、駆動用バッテリより電力が供給される駆動回路部と制御用バッテリより電力が供給される制御回路部とを備え、前記制御回路部は、定電圧電源と、前記定電圧電源と前記駆動回路部との間に接続された半導体素子と、前記半導体素子にアノードが接続されると共に、前記駆動回路部にカソードが接続されるダイオードと、前記駆動回路部に短絡が発生したとき、前記定電圧電源の出力電圧の低下を検出する電圧低下検出部と、前記電圧低下検出部が前記定電圧電源の出力電圧の低下を検出したとき、前記半導体素子、及び前記駆動用バッテリと前記ダイオードとの間に接続されたリレーを開放するリレー制御部とを備えたものである。 An inverter device according to the present invention includes a drive circuit unit to which electric power is supplied from a drive battery and a control circuit unit to which electric power is supplied from a control battery, wherein the control circuit unit includes a constant voltage power source and the constant voltage source. A semiconductor element connected between the voltage power supply and the drive circuit unit, a diode connected to the anode of the semiconductor element, a diode connected to the cathode of the drive circuit unit, and a short circuit in the drive circuit unit A voltage drop detection unit that detects a drop in the output voltage of the constant voltage power supply, and when the voltage drop detection unit detects a drop in the output voltage of the constant voltage power supply, the semiconductor element and the driving battery And a relay control unit that opens a relay connected between the diode and the diode.
この発明に係るインバータ装置によれば、駆動回路部の電源ラインに接続された定電圧電源の出力電圧の低下を検出し、定電圧電源の出力、及びメインバッテリと駆動回路部間の接続を開放することにより、電動機の停止中、駆動中に関わらず小電流で安全に短絡を検出することができる。 According to the inverter device of the present invention, a drop in the output voltage of the constant voltage power supply connected to the power supply line of the drive circuit unit is detected, and the output of the constant voltage power supply and the connection between the main battery and the drive circuit unit are opened. By doing so, it is possible to detect a short circuit safely with a small current regardless of whether the motor is stopped or driven.
以下、この発明に係るインバータ装置の好適な実施の形態について図面を参照して説明する。 DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of an inverter device according to the invention will be described with reference to the drawings.
実施の形態１．
図１は、この発明の実施の形態１に係るインバータ装置が適用された車両の概略全体構成図であり、好ましい実施形態の１つを示すものである。
図１において、車両１００は、車載電機器１と、車載電機器１や後述するインバータ装置２の制御回路部２１に電力を供給する制御用バッテリ、例えば鉛バッテリ３と、車載電機器１への電力供給と鉛バッテリ３の充電を行う発電機４と、エンジン（図示せず）やインバータ装置２に動作指令を出力するＥＣＵ５と、回転体を駆動する電動機６と、制御回路部２１と駆動回路部２２を備えて電動機６の駆動、発電を司る前記インバータ装置２と、インバータ装置２の駆動回路部２２に電力を供給する駆動用バッテリ７と、駆動用バッテリ７とインバータ装置２の駆動回路部２２への電力を遮断、接続するリレー８とから主に構成される。
Embodiment 1 FIG.
FIG. 1 is a schematic overall configuration diagram of a vehicle to which an inverter device according to Embodiment 1 of the present invention is applied, and shows one preferred embodiment.
In FIG. 1, a vehicle 100 includes an in-vehicle electric device 1, a control battery for supplying electric power to the in-vehicle electric device 1 and a control circuit unit 21 of an inverter device 2 described later, for example, a lead battery 3, and the in-vehicle electric device 1. A generator 4 that supplies power and charges the lead battery 3, an ECU 5 that outputs an operation command to an engine (not shown) and the inverter device 2, an electric motor 6 that drives a rotating body, a control circuit unit 21, and a drive circuit The inverter device 2 including the unit 22 for controlling the driving and power generation of the electric motor 6, the driving battery 7 for supplying power to the driving circuit unit 22 of the inverter device 2, the driving battery 7 and the driving circuit unit of the inverter device 2 It is mainly comprised from the relay 8 which interrupts | blocks and connects the electric power to 22.
鉛バッテリ３は、鉛蓄電池を利用し、車載電機器１、ＥＣＵ５、インバータ装置２の制御回路部２１に電力の供給を行う。また、車載電機器１には、鉛バッテリ３および発電機４から電力の供給が行われる。なお、車載電機器１としては、カーオーディオやヘッドランプ等の電気機器が挙げられる。 The lead battery 3 uses a lead storage battery to supply electric power to the on-vehicle electric device 1, the ECU 5, and the control circuit unit 21 of the inverter device 2. In addition, electric power is supplied to the in-vehicle electric device 1 from the lead battery 3 and the generator 4. Note that the in-vehicle electric device 1 may be an electric device such as a car audio or a headlamp.
発電機４は、オルタネータであり、内燃機関の動力部からのエネルギーを電気エネルギーに変換する。ＥＣＵ４は、エンジンの燃料噴射や点火タイミングなどエンジン運転における電気的な制御を総合的に行うコントローラユニットである。なお、この実施の形態では、ＥＣＵ５はインバータ装置２からの短絡検出の通知を受け、車両をコントロールする他、電動機４の駆動や発電動作をするようにインバータ装置２に指令する。 The generator 4 is an alternator and converts energy from the power section of the internal combustion engine into electric energy. The ECU 4 is a controller unit that comprehensively performs electrical control in engine operation such as engine fuel injection and ignition timing. In this embodiment, the ECU 5 receives the notification of short circuit detection from the inverter device 2 and controls the vehicle, and commands the inverter device 2 to drive the motor 4 and to perform a power generation operation.
インバータ装置２は、鉛バッテリ３から電力が供給される制御回路部２１と駆動用バッテリ７から電力が供給される駆動回路部２２を備え、電動機６の駆動、発電およびリレー８の制御を行う。 The inverter device 2 includes a control circuit unit 21 to which electric power is supplied from the lead battery 3 and a drive circuit unit 22 to which electric power is supplied from the driving battery 7, and controls driving of the electric motor 6, power generation, and relay 8.
電動機６は、三相交流モータで構成され、軸受けで支持されたシャフトに接続された回転体を駆動し、過給機のインペラや車輪を回転する。駆動用バッテリ７は、リチウムイオン電池やキャパシタなど鉛バッテリ３以上の高電圧を出力するバッテリであり、インバータ装置２の駆動回路部２２に電力供給を行う。また、リレー８は、駆動用バッテリ７とインバータ装置２の駆動回路部２２の間に設けられ、制御回路部２１の指令により接続、開放する。 The electric motor 6 is composed of a three-phase AC motor, drives a rotating body connected to a shaft supported by a bearing, and rotates an impeller and wheels of the supercharger. The drive battery 7 is a battery that outputs a higher voltage than the lead battery 3 such as a lithium ion battery or a capacitor, and supplies power to the drive circuit unit 22 of the inverter device 2. The relay 8 is provided between the drive battery 7 and the drive circuit unit 22 of the inverter device 2, and is connected and released according to a command from the control circuit unit 21.
図２は、インバータ装置２の詳細構成図で、同図に基づいてインバータ装置２の短絡検出回路について説明する。 FIG. 2 is a detailed configuration diagram of the inverter device 2, and a short circuit detection circuit of the inverter device 2 will be described based on FIG.
制御回路部２１は、鉛バッテリ３の電圧を降圧する電源ＩＣ２１１と、リレー８の制御信号や電動機６の駆動信号を生成するマイコン２１２と、駆動回路部２２に駆動信号を出力するプリドライバ２１３と、駆動回路部２２の電源ラインと接続されるダイオード２１４と、電源ＩＣ２１１の第１定電圧電源２１１ａとダイオード２１４の接続を制御する定電圧接続半導体素子２１５と、リレー８を制御するリレー接続半導体素子２１６とから主に構成される。 The control circuit unit 21 includes a power supply IC 211 that steps down the voltage of the lead battery 3, a microcomputer 212 that generates a control signal for the relay 8 and a drive signal for the electric motor 6, and a pre-driver 213 that outputs a drive signal to the drive circuit unit 22. The diode 214 connected to the power supply line of the drive circuit unit 22, the constant voltage connection semiconductor element 215 for controlling the connection between the first constant voltage power supply 211 a of the power supply IC 211 and the diode 214, and the relay connection semiconductor element for controlling the relay 8 216.
電源ＩＣ２１１は、２つ以上の定電圧電源を備えており、前記第１定電圧電源２１１ａは短絡検出として用い、少なくとも１つの第２定電圧電源２１１ｂはマイコン２１２に電力を供給する。第１定電圧電源２１１ａは、第２定電圧電源２１１ｂ以下の低電圧で、数Ａ以下の電流制限があり、この電流制限を超えた場合に出力電圧が低下する電源である。 The power supply IC 211 includes two or more constant voltage power supplies. The first constant voltage power supply 211 a is used for short circuit detection, and at least one second constant voltage power supply 211 b supplies power to the microcomputer 212. The first constant voltage power supply 211a is a power supply that has a low voltage lower than the second constant voltage power supply 211b and has a current limit of several A or less, and the output voltage decreases when the current limit is exceeded.
マイコン２１２は、第１定電圧電源２１１ａの電圧をＡ／Ｄコンバータなどで読み込み、予め設定された低電圧検出値と比較する電圧低下検出部２１２ａと、電圧低下検出部２１２ａの指令に従い、定電圧接続半導体素子２１５とリレー接続半導体素子２１６のオン、オフを制御するリレー制御部２１２ｂと、電動機６の駆動信号を生成する駆動信号生成部２１２ｃと、ＥＣＵ５との通信手段を備えたＣＰＵ、ＲＡＭ、ＲＯＭなど（図示せず）を備えた算術論理演算可能回路である。 The microcomputer 212 reads the voltage of the first constant voltage power supply 211a with an A / D converter or the like, compares it with a preset low voltage detection value, and follows a command from the voltage drop detection unit 212a. A CPU, a RAM, and a relay controller 212b for controlling on / off of the connection semiconductor element 215 and the relay connection semiconductor element 216, a drive signal generation unit 212c for generating a drive signal for the electric motor 6, and a communication means with the ECU 5; This is an arithmetic and logic circuit that includes a ROM or the like (not shown).
プリドライバ２１３は、マイコン２１２の駆動信号を駆動回路部２２に適したゲート電圧に変換し、出力する。ダイオード２１４は、アノードが定電圧接続半導体素子２１５と接続され、カソードが駆動回路部２２の電源ラインと接続されており、駆動用バッテリ７の電圧は、第１定電圧電源２１１ａの電圧より十分高いため、リレー８を接続しても第１定電圧電源２１１ａから電流が流れることはない。一方で、電動機６の停止中は勿論、電動機６が駆動中に駆動回路部２２が短絡した場合、第１定電圧電源２１１ａから短絡電流が流れるため、電動機６が駆動中でも短絡検出することが可能である。 The pre-driver 213 converts the drive signal of the microcomputer 212 into a gate voltage suitable for the drive circuit unit 22 and outputs it. The diode 214 has an anode connected to the constant voltage connection semiconductor element 215 and a cathode connected to the power supply line of the drive circuit unit 22, and the voltage of the drive battery 7 is sufficiently higher than the voltage of the first constant voltage power supply 211a. Therefore, even if the relay 8 is connected, no current flows from the first constant voltage power supply 211a. On the other hand, when the drive circuit unit 22 is short-circuited while the motor 6 is being driven as well as when the motor 6 is stopped, a short-circuit current flows from the first constant voltage power supply 211a, so that the short-circuit can be detected even when the motor 6 is being driven. It is.
定電圧接続半導体素子２１５は、ｐｎｐトランジスタやＰチャネルＭＯＳＦＥＴで構成されている。そして、通常はリレー制御部２１２ｂによりオンしており、短絡を検出した場合、定電圧接続半導体素子２１５をオフすることで第１定電圧電源２１１ａの出力を開放し、短絡状態を解除することが可能である。 The constant voltage connection semiconductor element 215 is configured by a pnp transistor or a P-channel MOSFET. Normally, it is turned on by the relay control unit 212b, and when a short circuit is detected, the output of the first constant voltage power supply 211a can be released by turning off the constant voltage connection semiconductor element 215 to release the short circuit state. Is possible.
リレー制御半導体素子２１６は、ｎｐｎトランジスタやＮチャネルＭＯＳＦＥＴで構成され、リレー制御部２１２ｂに従い、オン、オフすることでリレー８を接続、開放する。 The relay control semiconductor element 216 includes an npn transistor and an N-channel MOSFET, and connects and opens the relay 8 by turning on and off according to the relay control unit 212b.
駆動回路部２２は、電動機６を駆動、発電する６つパワー半導体素子２２１と、平滑コンデンサ２２２とから主に構成される。パワー半導体素子２２１は、ＮチャネルＭＯＳＦＥＴやＩＧＢＴで構成されており、プリドライバ２１３の駆動信号に応じて電動機６の各相の巻き線に電力を供給することで回転体を駆動する。 The drive circuit unit 22 mainly includes six power semiconductor elements 221 that drive and generate electric power from the electric motor 6 and a smoothing capacitor 222. The power semiconductor element 221 is configured by an N-channel MOSFET or IGBT, and drives the rotating body by supplying power to the windings of each phase of the electric motor 6 in accordance with the drive signal of the pre-driver 213.
平滑コンデンサ２２２は、セラミックコンデンサやフィルムコンデンサや電解コンデンサで構成されており、パワー半導体素子２２１のスイッチングによる変動を平滑化する。 The smoothing capacitor 222 is composed of a ceramic capacitor, a film capacitor, or an electrolytic capacitor, and smoothes fluctuations caused by switching of the power semiconductor element 221.
実施の形態１に係るインバータ装置１００は前記のように構成されており、次にその動作について説明する。
図３は、リレー８および定電圧接続半導体素子２１５の制御処理を示すフローチャートであり、同図に基づいて具体的な制御を説明する。
The inverter device 100 according to the first embodiment is configured as described above, and the operation thereof will be described next.
FIG. 3 is a flowchart showing a control process of the relay 8 and the constant voltage connection semiconductor element 215. Specific control will be described based on the same figure.
まず、ステップＳ２０１で、定電圧接続半導体素子２１５を接続した状態から始まる。 First, in step S201, the process starts from a state in which the constant voltage connection semiconductor element 215 is connected.
次のステップＳ２０２では、電圧低下検出部２１２ａにおいて第１定電圧電源２１１ａの電圧と、予め設定された低電圧検出値を比較し、第１定電圧電源２１１ａの電圧の方が大きい場合、次ステップＳ２０３へ進む。低電圧検出値の方が大きい場合、駆動回路部２２が短絡していると判断し、ステップＳ２０９に進み、リレー制御部２１２ｂにおいてリレー８、定電圧接続半導体素子２１５を開放し、ステップＳ２１０に進む。そして、異常検出終了をＥＣＵ５へ通知する。 In the next step S202, the voltage drop detection unit 212a compares the voltage of the first constant voltage power supply 211a with a preset low voltage detection value. If the voltage of the first constant voltage power supply 211a is larger, the next step The process proceeds to S203. If the low voltage detection value is larger, it is determined that the drive circuit unit 22 is short-circuited, and the process proceeds to step S209. The relay control unit 212b opens the relay 8 and the constant voltage connection semiconductor element 215, and the process proceeds to step S210. . Then, the ECU 5 is notified of the end of abnormality detection.
ステップＳ２０３では、リレー制御部２１２ｂは駆動回路部２２に短絡がないと判断してリレー接続半導体素子２１６を制御し、リレー８を接続することで駆動回路部２２に駆動用バッテリ７の電力が供給される。 In step S203, the relay control unit 212b determines that there is no short circuit in the drive circuit unit 22, controls the relay-connected semiconductor element 216, and supplies the power of the drive battery 7 to the drive circuit unit 22 by connecting the relay 8. Is done.
次のステップＳ２０４では、駆動信号生成部２１２ｃで電動機６の駆動信号を生成し、プリドライバ２１３を介して電動機６を駆動状態とする。 In the next step S204, the drive signal generator 212c generates a drive signal for the electric motor 6 and puts the electric motor 6 into a drive state via the pre-driver 213.
次のステップＳ２０５では、電動機６の駆動中に電圧低下検出部２１２ａにおいて第１定電圧電源２１１ａの電圧と、予め設定された低電圧検出値を比較し、第１定電圧電源２１１ａの電圧の方が大きい場合、ステップＳ２０６へ進む。低電圧検出値の方が大きい場合、駆動回路部２２が短絡していると判断し、ステップＳ２０９に進み、リレー８、定電圧接続半導体素子２１５を開放し、ステップＳ２１０に進む。そして、異常検出終了をＥＣＵ５へ通知する。 In the next step S205, the voltage drop detection unit 212a compares the voltage of the first constant voltage power supply 211a with a preset low voltage detection value during driving of the electric motor 6, and the voltage of the first constant voltage power supply 211a is compared. If is larger, the process proceeds to step S206. When the low voltage detection value is larger, it is determined that the drive circuit unit 22 is short-circuited, the process proceeds to step S209, the relay 8 and the constant voltage connection semiconductor element 215 are opened, and the process proceeds to step S210. Then, the ECU 5 is notified of the end of abnormality detection.
次のステップＳ２０６では、電動機６の停止要求有無を確認し、停止要求有りの場合、ステップＳ２０７に進む。停止要求無しの場合、ステップＳ２０５に戻り、短絡検出していないか確認しながら電動機６の駆動を継続する。 In the next step S206, it is confirmed whether or not there is a stop request for the electric motor 6. If there is a stop request, the process proceeds to step S207. When there is no stop request | requirement, it returns to step S205 and continues the drive of the electric motor 6, confirming whether the short circuit is detected.
次のステップＳ２０７では、電動機６の停止要求に従い、駆動信号生成部２１２ｃが駆動信号の生成を停止し、電動機６を停止する。 In the next step S207, in accordance with a request to stop the electric motor 6, the drive signal generation unit 212c stops generating the drive signal and stops the electric motor 6.
次のステップＳ２０８では、リレー８、定電圧接続半導体素子２１５を開放した状態とし、フローチャートを終了する。 In the next step S208, the relay 8 and the constant voltage connection semiconductor element 215 are opened, and the flowchart ends.
以上のように、実施の形態１に係るインバータ装置は、駆動回路部２２が短絡した場合、駆動回路部２２の電源ラインに接続された第１定電圧電源２１１ａの出力電圧の低下を検出し、定電圧接続半導体素子２１５を制御して定電圧電源２１１ａの出力を開放すると共に、リレー８を制御して駆動用バッテリと駆動回路部間の接続を開放するので、電動機６の停止中、駆動中に関わらず小電流で安全に短絡を検出することができる。 As described above, the inverter device according to the first embodiment detects a decrease in the output voltage of the first constant voltage power supply 211a connected to the power supply line of the drive circuit unit 22 when the drive circuit unit 22 is short-circuited. The constant voltage connection semiconductor element 215 is controlled to release the output of the constant voltage power supply 211a, and the relay 8 is controlled to open the connection between the drive battery and the drive circuit unit. Regardless of this, a short circuit can be detected safely with a small current.
なお、停止時のみ短絡を検出するのであれば、ダイオード２１４を削除することでき、更に簡素な構成が実現できる。 If a short circuit is detected only at the time of stop, the diode 214 can be eliminated, and a simpler configuration can be realized.
また、リレー８をトランジスタやＭＯＳＦＥＴなどのパワー半導体素子で構成し、制御回路部２１や駆動回路部２２に搭載しても良い。 Further, the relay 8 may be configured by a power semiconductor element such as a transistor or a MOSFET and mounted on the control circuit unit 21 or the drive circuit unit 22.
実施の形態２．
図４は、この発明の実施の形態２に係るインバータ装置が適用された車両の概略全体構成図を示すものである。
実施の形態２に係るインバータ装置２ａは、電源ＩＣ２１１の第１定電圧電源２１１ａの出力をオン、オフ制御するもので、マイコン２１２のリレー制御部２１２ｂの信号で第１定電圧電源２１１ａを制御するように構成されている。なお、図４中の符号２００は、実施の形態２に係るインバータ装置２ａが適用された車両を示し、その他の構成については、実施の形態１と同様であるので、同一符号を付すことにより重複説明を省略する。
Embodiment 2. FIG.
FIG. 4 shows a schematic overall configuration diagram of a vehicle to which an inverter device according to Embodiment 2 of the present invention is applied.
The inverter device 2a according to the second embodiment controls on / off of the output of the first constant voltage power supply 211a of the power supply IC 211, and controls the first constant voltage power supply 211a with a signal from the relay control unit 212b of the microcomputer 212. It is configured as follows. Reference numeral 200 in FIG. 4 indicates a vehicle to which the inverter device 2a according to the second embodiment is applied, and other configurations are the same as those in the first embodiment. Description is omitted.
実施の形態２に係るインバータ装置２ａによれば、マイコン２１２のリレー制御部２１２ｂの信号で第１定電圧電源２１１ａを制御することにより、定電圧接続半導体素子２１５（図２参照）を削除することが可能となり、実施の形態１に係るインバータ装置２により得られる効果に加え、簡素な構成が実現できる。 According to the inverter device 2a according to the second embodiment, the constant voltage connection semiconductor element 215 (see FIG. 2) is deleted by controlling the first constant voltage power supply 211a with a signal from the relay control unit 212b of the microcomputer 212. In addition to the effects obtained by the inverter device 2 according to the first embodiment, a simple configuration can be realized.
以上、この発明の実施の形態１及び実施の形態２に係るインバータ装置２、２ａについて説明したが、この発明は、その発明の範囲内において、各実施の形態を自由に組み合わせたり、各実施の形態を適宜、変形、省略することが可能である。 As described above, the inverter devices 2 and 2a according to the first and second embodiments of the present invention have been described. However, within the scope of the present invention, the present invention can be freely combined with each other, The form can be modified or omitted as appropriate.
１ 車載電機器 ２、２ａ インバータ装置
２１ 制御回路部 ２１１ 電源ＩＣ
２１１ａ 第１定電圧電源 ２１１ｂ 第２定電圧電源
２１２ マイコン ２１２ａ 電圧低下検出部
２１２ｂ リレー制御部 ２１２ｃ 駆動信号生成部
２１３ プリドライバ ２１４ ダイオード
２１５ 定電圧接続半導体素子 ２１６ リレー接続半導体素子
２２ 駆動回路部 ２２１ パワー半導体素子
２２２ 平滑コンデンサ ３ 鉛バッテリ
４ 発電機 ５ ＥＣＵ
６ 電動機 ７ 駆動用バッテリ
８ リレー １００、２００ 車両
DESCRIPTION OF SYMBOLS 1 In-vehicle electric device 2, 2a Inverter device 21 Control circuit part 211 Power supply IC
211a 1st constant voltage power supply 211b 2nd constant voltage power supply 212 Microcomputer 212a Voltage drop detection part 212b Relay control part 212c Drive signal generation part 213 Pre-driver 214 Diode 215 Constant voltage connection semiconductor element 216 Relay connection semiconductor element 22 Drive circuit part 221 Power Semiconductor element 222 Smoothing capacitor 3 Lead battery 4 Generator 5 ECU
6 Electric motor 7 Drive battery 8 Relay 100, 200 Vehicle
Claims (6)
定電圧電源と、
前記定電圧電源と前記駆動回路部との間に接続された半導体素子と、
前記半導体素子にアノードが接続されると共に、前記駆動回路部にカソードが接続されるダイオードと、
前記駆動回路部に短絡が発生したとき、前記定電圧電源の出力電圧の低下を検出する電圧低下検出部と、
前記電圧低下検出部が前記定電圧電源の出力電圧の低下を検出したとき、前記半導体素子、及び前記駆動用バッテリと前記ダイオードとの間に接続されたリレーを開放するリレー制御部と、を備えたことを特徴とするインバータ装置。 A drive circuit unit to which electric power is supplied from the drive battery and a control circuit unit to which electric power is supplied from the control battery;
A constant voltage power supply,
A semiconductor element connected between the constant voltage power source and the drive circuit unit;
A diode having an anode connected to the semiconductor element and a cathode connected to the drive circuit unit;
When a short circuit occurs in the drive circuit unit, a voltage drop detection unit that detects a drop in the output voltage of the constant voltage power source; and
When the voltage drop detection unit detects a drop in the output voltage of the constant voltage power supply, the semiconductor element, and a relay control unit that opens a relay connected between the drive battery and the diode, An inverter device characterized by that.
定電圧電源と、
前記定電圧電源と前記駆動回路部との間に接続されたダイオードと、
前記駆動回路部に短絡が発生したとき、前記定電圧電源の出力電圧の低下を検出する電圧低下検出部と、
前記電圧低下検出部が前記定電圧電源の出力電圧の低下を検出したとき、前記定電圧電源をオフ制御すると共に、前記駆動用バッテリと前記ダイオードの間に接続されたリレーを開放するリレー制御部と、を備えたことを特徴とするインバータ装置。 A drive circuit unit to which electric power is supplied from the drive battery and a control circuit unit to which electric power is supplied from the control battery;
A constant voltage power supply,
A diode connected between the constant voltage power source and the drive circuit unit;
When a short circuit occurs in the drive circuit unit, a voltage drop detection unit that detects a drop in the output voltage of the constant voltage power source; and
When the voltage drop detection unit detects a drop in the output voltage of the constant voltage power source, the relay control unit opens the relay connected between the driving battery and the diode while turning off the constant voltage power source And an inverter device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012187308A JP5414862B1 (en) | 2012-08-28 | 2012-08-28 | Inverter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012187308A JP5414862B1 (en) | 2012-08-28 | 2012-08-28 | Inverter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP5414862B1 JP5414862B1 (en) | 2014-02-12 |
| JP2014045603A true JP2014045603A (en) | 2014-03-13 |
Family
ID=50202763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012187308A Active JP5414862B1 (en) | 2012-08-28 | 2012-08-28 | Inverter device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5414862B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018113798A (en) * | 2017-01-12 | 2018-07-19 | トヨタ自動車株式会社 | Driving device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09284902A (en) * | 1996-04-18 | 1997-10-31 | Suzuki Motor Corp | Short detecting circuit of electric vehicle |
| JPH10224903A (en) * | 1997-01-31 | 1998-08-21 | Hitachi Ltd | Electric car controller |
| JP2007059138A (en) * | 2005-07-25 | 2007-03-08 | Toyota Motor Corp | Power supply controller |
| JP2010148318A (en) * | 2008-12-22 | 2010-07-01 | Honda Motor Co Ltd | Dc/dc converter system |
-
2012
- 2012-08-28 JP JP2012187308A patent/JP5414862B1/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09284902A (en) * | 1996-04-18 | 1997-10-31 | Suzuki Motor Corp | Short detecting circuit of electric vehicle |
| JPH10224903A (en) * | 1997-01-31 | 1998-08-21 | Hitachi Ltd | Electric car controller |
| JP2007059138A (en) * | 2005-07-25 | 2007-03-08 | Toyota Motor Corp | Power supply controller |
| JP2010148318A (en) * | 2008-12-22 | 2010-07-01 | Honda Motor Co Ltd | Dc/dc converter system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018113798A (en) * | 2017-01-12 | 2018-07-19 | トヨタ自動車株式会社 | Driving device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5414862B1 (en) | 2014-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10800360B2 (en) | Electric power system of vehicle with quick discharge of a high-voltage condenser | |
| US10279761B2 (en) | Vehicle power-supply device | |
| JP5648211B2 (en) | Plug-in hybrid vehicle charging device | |
| US7157869B2 (en) | Control system and control method for motor powered four wheel drive vehicle | |
| JP4926222B2 (en) | Control device for vehicle power converter | |
| US10787136B2 (en) | Electric power system for controlling pre-charge of vehicle | |
| JP6638616B2 (en) | Power control device | |
| US9680404B2 (en) | Abnormality detection apparatus and abnormality detection method | |
| JP2013236442A (en) | Electric vehicle | |
| JP5282876B2 (en) | Vehicle power supply | |
| US9744861B2 (en) | Power conversion device | |
| KR101826992B1 (en) | Power system of fuel cell vehicle | |
| JP3345288B2 (en) | Electric vehicle control device | |
| JP2002218646A (en) | Power supply unit for vehicle | |
| KR20160134206A (en) | Active capacitor discharge system of electric power system for eco-friendly vehicle | |
| JP5529393B2 (en) | Discharge device for power storage device applied to generator motor drive device | |
| JPWO2017026026A1 (en) | Railway vehicle control system | |
| JP5414862B1 (en) | Inverter device | |
| JP2013091454A (en) | Power feed system for idle stop vehicle | |
| JP6645380B2 (en) | Vehicle system | |
| JP6677088B2 (en) | Power supply system for electric vehicles | |
| JP6400858B2 (en) | Drive device, drive system, and drive device control method | |
| JP2004104936A (en) | Controller for driving of hybrid vehicle | |
| JP6589803B2 (en) | Rotating electrical machine control device | |
| JP2007089328A (en) | Fault detection device of power conversion mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| TRDD | Decision of grant or rejection written | ||
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20131112 |
|
| R151 | Written notification of patent or utility model registration |
Ref document number: 5414862 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R151 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |