JP2002291169A - On-board double-power-supply circuit with motor- generator - Google Patents
On-board double-power-supply circuit with motor- generatorInfo
- Publication number
- JP2002291169A JP2002291169A JP2001093339A JP2001093339A JP2002291169A JP 2002291169 A JP2002291169 A JP 2002291169A JP 2001093339 A JP2001093339 A JP 2001093339A JP 2001093339 A JP2001093339 A JP 2001093339A JP 2002291169 A JP2002291169 A JP 2002291169A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- power supply
- storage unit
- electric machine
- 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.)
- Pending
Links
Landscapes
- Control Of Charge By Means Of Generators (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、発電電動機を有す
る車両用二電源回路に関する。The present invention relates to a dual power supply circuit for a vehicle having a generator motor.
【０００２】[0002]
【従来の技術】車両用電源装置において、エンジン始動
と発電とを一つの発電電動機で行う方式が提案されてい
る。また、車両に電圧が異なる二バッテリを搭載して、
大電力負荷駆動時の送電損失を低減することが提案され
ている。発電電動機としては効率に優れるなどの利点を
有する同期機が好適であり、この同期機の駆動のために
インバータ回路が設けられるのが通常である。また、こ
の発電電動機を有する車両用二電源回路系では、エンジ
ン始動時に発電電動機に大電流を通電する必要があり、
高圧バッテリからエンジン始動電力を給電するのが望ま
しい。2. Description of the Related Art In a power supply device for a vehicle, there has been proposed a system in which an engine start and power generation are performed by a single generator motor. In addition, two batteries with different voltages are mounted on the vehicle,
It has been proposed to reduce transmission loss when driving a large power load. As the generator motor, a synchronous machine having advantages such as excellent efficiency is suitable, and an inverter circuit is usually provided for driving the synchronous machine. Further, in the dual power supply circuit system for a vehicle having the generator motor, it is necessary to supply a large current to the generator motor when the engine is started.
It is desirable to supply engine starting power from a high voltage battery.
【０００３】このような発電電動機を有する車両用二電
源回路系では、高圧バッテリによる発電電動機の電動動
作、発電電動機による高圧バッテリの充電の他に、車両
用電気負荷に給電する低圧バッテリの充電が必要とな
り、このため、従来は高圧バッテリと低圧バッテリとの
間にＤＣーＤＣコンバータを設けている。In a dual power supply circuit system for a vehicle having such a generator motor, in addition to the electric operation of the generator motor by the high voltage battery and the charging of the high voltage battery by the generator motor, the charging of the low voltage battery for supplying electric power to the vehicle is performed. Therefore, a DC-DC converter is conventionally provided between the high-voltage battery and the low-voltage battery.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うなＤＣ−ＤＣコンバータの設置は、回路系の複雑化と
コストアップを招くという問題点を有していた。However, the installation of such a DC-DC converter has a problem that the circuit system becomes complicated and the cost increases.
【０００５】本発明は上記問題点に鑑みなされたもので
あり、簡素な回路で構成可能な発電電動機を有する車両
用二電源回路を提供することを、その目的としている。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a dual power supply circuit for a vehicle having a generator motor which can be constituted by a simple circuit.
【０００６】[0006]
【課題を解決するための手段】請求項１記載の発電電動
機を有する車両用二電源回路は、交流回転電機と、高圧
蓄電部と、低圧蓄電部と、前記交流回転電機の発電時に
前記交流回転電機の発電電力を整流して前記低圧蓄電部
を充電する整流回路と、前記交流回転電機の電動動作時
に前記高圧蓄電部の高圧電力を前記交流回転電機に給電
し、前記交流回転電機の発電時に発電電力を昇圧して前
記高圧蓄電部を充電するインバータ回路と、前記整流回
路と直列に接続されて前記高圧蓄電部の充電時に前記交
流回転電機が出力する発電電力が前記整流回路を通じて
前記低圧蓄電部に給電されるのを禁止する遮断部と、前
記インバータ回路及び前記遮断部を制御する制御回路と
を備えることを特徴としている。According to a first aspect of the present invention, there is provided a dual power supply circuit for a vehicle having a generator motor, comprising: an AC rotating electric machine; a high-voltage power storage unit; a low-voltage power storage unit; A rectifier circuit that rectifies the power generated by the electric machine and charges the low-voltage power storage unit; and supplies high-voltage power of the high-voltage power storage unit to the AC rotary electric machine during the electric operation of the AC rotary electric machine. An inverter circuit that boosts the generated power to charge the high-voltage power storage unit; and a power generator that is connected in series with the rectifier circuit and that is output by the AC rotating electric machine when charging the high-voltage power storage unit through the rectifier circuit. And a control circuit for controlling the inverter circuit and the cut-off unit.
【０００７】すなわち、本構成では、交流回転電機すな
わち発電電動機はインバータ回路を通じて高圧蓄電部と
双方向電力授受可能に接続され、かつ、整流回路を通じ
て低圧蓄電部に給電可能に接続されている。更に、本構
成では特に、高圧蓄電部の充電時に発電電動機の発電電
力を昇圧して高圧蓄電部を充電するとともに、遮断部を
遮断するので、高圧発電電力が低圧蓄電部に給電されて
それを損傷するのを防止することができる。That is, in this configuration, the AC rotating electric machine, that is, the generator motor, is connected to the high-voltage power storage unit through the inverter circuit so as to be able to exchange bidirectional power, and is connected to the low-voltage power storage unit through the rectifier circuit so as to be able to supply power. Furthermore, in this configuration, in particular, when the high-voltage power storage unit is charged, the power generated by the generator motor is boosted to charge the high-voltage power storage unit and the shut-off unit is shut off, so that the high-voltage power is supplied to the low-voltage power storage unit and Damage can be prevented.
【０００８】本構成によれば、ＤＣ−ＤＣコンバータを
省略することができ、更にエンジン始動などの電動動作
と発電動作とを同一の回転電機で行うことができるの
で、装置構成を従来に比較して格段に簡素化することが
できる。According to this configuration, the DC-DC converter can be omitted, and the electric operation such as engine start and the power generation operation can be performed by the same rotating electric machine. Can be greatly simplified.
【０００９】請求項２記載の構成は請求項１記載の車両
用二電源回路において更に、前記制御回路が、前記交流
回転電機の発電時に前記交流回転電機の電機子巻線を短
周期ごとに短絡することにより前記発電電力を昇圧して
前記高圧蓄電部を充電することを特徴としている。According to a second aspect of the present invention, in the dual power supply circuit for a vehicle according to the first aspect, the control circuit further short-circuits an armature winding of the AC rotating electric machine every short cycle during power generation of the AC rotating electric machine. By doing so, the generated power is boosted to charge the high-voltage power storage unit.
【００１０】本構成によれば、高圧蓄電部の充電が可能
な高圧直流電力を簡単な回路構成で発生することができ
る上、通常のＤＣ−ＤＣコンバータにようにトランスや
チョークコイルなどの大型大重量部品を設ける必要もな
い。According to this configuration, high-voltage DC power capable of charging the high-voltage power storage unit can be generated with a simple circuit configuration, and a large-sized transformer such as a transformer or a choke coil, like a normal DC-DC converter. There is no need to provide heavy parts.
【００１１】請求項３記載の構成は請求項２記載の車両
用二電源回路において更に、前記制御回路が、前記イン
バータ回路の同一アームのスイッチング素子を同時オン
することにより前記短絡を実施することを特徴としてい
る。According to a third aspect of the present invention, in the dual power supply circuit for a vehicle according to the second aspect, the control circuit performs the short circuit by simultaneously turning on switching elements of the same arm of the inverter circuit. Features.
【００１２】本構成によれば、交流回転電機の電機子巻
線の短絡をなすスイッチを追加する必要がなく、回路構
成を簡素化することができる。According to this configuration, there is no need to add a switch for short-circuiting the armature winding of the AC rotating electric machine, and the circuit configuration can be simplified.
【００１３】請求項４記載の構成は請求項２又は３記載
の車両用二電源回路において更に、前記遮断部が前記整
流回路と直列接続された開閉スイッチからなり、前記制
御回路が前記短絡中及び短絡開放後の所定時間に前記開
閉スイッチをオフすることを特徴としている。According to a fourth aspect of the present invention, in the dual power supply circuit for a vehicle according to the second or third aspect, the cut-off section further comprises an open / close switch connected in series with the rectifier circuit, and the control circuit is configured to switch between the short circuit state and the short circuit state. The on / off switch is turned off at a predetermined time after the short circuit is released.
【００１４】本構成によれば、遮断部のオフを短絡中に
行うので、遮断部を流れる電流をほとんど無視すること
ができ、この遮断時における遮断部の逆起電圧問題を解
消することができる。According to this structure, since the cutoff section is turned off during the short circuit, the current flowing through the cutoff section can be almost ignored, and the problem of the back electromotive voltage of the cutoff section at the time of cutoff can be solved. .
【００１５】請求項５記載の構成は請求項１記載の車両
用二電源回路において更に、前記制御回路が、界磁巻線
型同期機により構成されてエンジンを始動する前記交流
回転電機の界磁電流を前記エンジン始動時に最大値とす
ることを特徴としている。According to a fifth aspect of the present invention, in the dual power supply circuit for a vehicle according to the first aspect, the control circuit further includes a field winding type synchronous machine, and a field current of the AC rotating electric machine for starting an engine. At the time of starting the engine.
【００１６】本構成によれば、エンジン始動トルクを増
大することができる。According to this configuration, the engine starting torque can be increased.
【００１７】請求項６記載の構成は請求項１記載の車両
用二電源回路において更に、前記制御回路が、前記電動
動作時に前記遮断部を遮断することを特徴としている。According to a sixth aspect of the present invention, in the dual power supply circuit for a vehicle according to the first aspect, the control circuit shuts off the shut-off portion during the electric operation.
【００１８】本構成によれば、エンジン始動時やトルク
アシスト時に高圧蓄電部が交流回転電機を電動動作させ
る場合に、高圧電力が低圧蓄電部に流れ込むことを防止
することができる。According to this configuration, it is possible to prevent high-voltage power from flowing into the low-voltage power storage unit when the high-voltage power storage unit electrically drives the AC rotating electric machine at the time of engine start or torque assist.
【００１９】[0019]
【発明の実施の形態】本発明の発電電動機を有する車両
用二電源回路の好適な態様を以下の実施例により詳細に
説明する。 （回路構成）本発明装置の車両用二バッテリ型電源系の
要部を図１に示す回路図を参照して以下に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a dual power supply circuit for a vehicle having a generator motor according to the present invention will be described in detail with reference to the following examples. (Circuit Configuration) The main part of the two-battery power supply system for a vehicle of the present invention will be described below with reference to the circuit diagram shown in FIG.
【００２０】１は高圧電源、２〜７は三相インバータ１
８を構成するスイッチング素子、８〜１３はスイッチン
グ素子２〜７と逆並列接続されたダイオード、１４は平
滑コンデンサ、１５〜１７は整流電圧出力用のダイオー
ド、１９は高圧電源１の充放電電流を検出する電流セン
サである。1 is a high-voltage power supply, 2 to 7 are three-phase inverters 1
8, switching elements 8 to 13 are diodes connected in antiparallel to switching elements 2 to 7, 14 is a smoothing capacitor, 15 to 17 are diodes for rectified voltage output, and 19 is the charge / discharge current of the high-voltage power supply 1. This is a current sensor to be detected.
【００２１】２０は、図示しないエンジンのクランク軸
に機械的に結合された三相界磁コイル型同期機、２１は
三相界磁コイル型同期機２０の界磁巻線、２２はフライ
ホイルダイオードである。Reference numeral 20 denotes a three-phase field coil type synchronous machine mechanically coupled to a crankshaft of an engine (not shown), 21 denotes a field winding of the three-phase field coil type synchronous machine 20, and 22 denotes a flywheel diode. It is.
【００２２】３０は界磁巻線２１に通電する界磁電流を
制御する界磁電流制御回路であり、抵抗素子３１〜３
４、トランジスタ３５〜３６、定電圧ダイオード３７か
らなる。４０は低圧電源７０に接続された車両用電気負
荷である。Reference numeral 30 denotes a field current control circuit for controlling a field current supplied to the field winding 21.
4. It comprises transistors 35 to 36 and a constant voltage diode 37. Reference numeral 40 denotes a vehicular electric load connected to the low-voltage power supply 70.
【００２３】５０は、高圧電源１の電圧、電流と低圧電
源３１の分圧に基づいて三相インバータ１８のスイッチ
ング素子２〜７を断続制御するインバータ制御回路であ
る。５１、５２は信号線、６０はインバータ制御回路５
０により信号線６１を通じて断続制御されるスイッチ手
段、７０は低圧電源である。Reference numeral 50 denotes an inverter control circuit for intermittently controlling the switching elements 2 to 7 of the three-phase inverter 18 based on the voltage and current of the high-voltage power supply 1 and the divided voltage of the low-voltage power supply 31. 51 and 52 are signal lines, 60 is an inverter control circuit 5
A switch means 70 that is intermittently controlled by the signal line 61 through the signal line 61, and a low-voltage power supply 70.
【００２４】高圧電源１の両端はインバータ１８の一対
の直流端に直流電力双方向授受可能に接続され、平滑コ
ンデンサ１４はリップル電圧を平滑する。整流用のダイ
オード１５〜１７は、三相インバータ１８の三相交流出
力端に個別に接続されたアノードをもち、ダイオード１
１〜１３とともに三相全波整流器を構成している。三相
界磁コイル型同期機２０の三相電機子巻線は三相インバ
ータ１８の三相交流出力端に個別に接続されている。三
相界磁コイル型同期機２０の回転角度は図示しない回転
センサにより検出されてインバータ制御回路５０に送ら
れる。抵抗素子３１、３２は低圧電源７０の電圧を分圧
する抵抗分圧回路を構成しており、定電圧ダイオード３
７は、この抵抗分圧回路の出力分圧をローレベル側にレ
ベルシフトする動作を行う。なお、三相界磁コイル型同
期機の代わりに他の種類の交流回転電機を採用してもよ
い。 （動作説明）上記構成においてその作動を説明する。Both ends of the high-voltage power supply 1 are connected to a pair of DC terminals of an inverter 18 so that DC power can be bidirectionally transmitted and received, and a smoothing capacitor 14 smoothes a ripple voltage. The diodes 15 to 17 for rectification have anodes individually connected to the three-phase AC output terminals of the three-phase inverter 18,
Together with 1 to 13, they constitute a three-phase full-wave rectifier. The three-phase armature windings of the three-phase field coil type synchronous machine 20 are individually connected to the three-phase AC output terminals of the three-phase inverter 18. The rotation angle of the three-phase field coil type synchronous machine 20 is detected by a rotation sensor (not shown) and sent to the inverter control circuit 50. The resistance elements 31 and 32 form a resistance voltage dividing circuit for dividing the voltage of the low voltage power supply 70,
Reference numeral 7 performs an operation of level-shifting the output voltage division of the resistance voltage dividing circuit to the low level side. It should be noted that another type of AC rotating electric machine may be employed instead of the three-phase field coil type synchronous machine. (Description of Operation) The operation of the above configuration will be described.
【００２５】（エンジン始動動作）エンジン始動におい
て、三相インバータ１８が高圧電源１から入力された直
流電圧を三相交流電圧に変換して電動機である同期機２
０の三相電機子巻線に給電する。この時、インバータ制
御回路５０は、上述の回転センサから得た同期機２０の
回転角度に応じて上記三相交流電圧又は三相交流電流の
位相角を設定する。エンジン始動には大電流が必要であ
るので、インバータ制御回路５０はＰＷＭ制御する三相
インバータ１８の各スイッチング素子２〜７のデューテ
ィ比を可能な限りできるだけ大きくする。これにより、
エンジン始動に際しては、同期機２０の三相電機子巻線
にはピーク値が高圧電源１の電圧に略等しい相間電圧
（ここでは数十Ｖ）が印加される。(Engine Start Operation) At the start of the engine, the three-phase inverter 18 converts the DC voltage input from the high-voltage power supply 1 into a three-phase AC voltage to convert the synchronous motor 2 as an electric motor.
0 is supplied to the three-phase armature winding. At this time, the inverter control circuit 50 sets the phase angle of the three-phase AC voltage or the three-phase AC current according to the rotation angle of the synchronous machine 20 obtained from the rotation sensor. Since a large current is required for starting the engine, the inverter control circuit 50 sets the duty ratio of each of the switching elements 2 to 7 of the three-phase inverter 18 to be PWM-controlled as large as possible. This allows
When starting the engine, an inter-phase voltage (here, several tens of volts) whose peak value is substantially equal to the voltage of the high-voltage power supply 1 is applied to the three-phase armature winding of the synchronous machine 20.
【００２６】また、同様に同期機２０が発生するエンジ
ン始動トルクを増大するために、インバータ制御回路５
０は、エンジン始動時に同期機２０の界磁巻線２１に最
大の界磁電流を通電し、界磁束を最大とする。具体的に
は、インバータ制御回路５０は、エンジン始動時に、オ
ープンコレクタのドライバトランジスタＴrをオンす
る。すると、抵抗素子３１、３２で構成されて低圧電源
７０の電圧を分圧する抵抗分圧回路が定電圧ダイオード
３８を通じて前置トランジスタ３６のベース電極に供給
する電流が０となって、前置トランジスタ３６がオフ
し、出力トランジスタ３５は抵抗素子３４からベース電
流を給電された連続的にオンされ、界磁巻線２１に継続
的に界磁電流が通電され、同期機２０の界磁束は最大と
なる。Similarly, in order to increase the engine starting torque generated by the synchronous machine 20, the inverter control circuit 5
0 indicates that the maximum field current is supplied to the field winding 21 of the synchronous machine 20 at the time of engine start to maximize the field magnetic flux. Specifically, the inverter control circuit 50 turns on the open-collector driver transistor Tr when the engine is started. Then, the current supplied to the base electrode of the pre-transistor 36 through the constant voltage diode 38 by the resistance voltage dividing circuit configured by the resistance elements 31 and 32 and dividing the voltage of the low-voltage power supply 70 becomes 0, and the pre-transistor 36 Is turned off, the output transistor 35 is continuously turned on by supplying the base current from the resistance element 34, the field current is continuously supplied to the field winding 21, and the field flux of the synchronous machine 20 is maximized. .
【００２７】なお、このエンジン始動時にはスイッチ手
段６０はオフされるので、三相インバータ１８からダイ
オード１５〜１７を通じて低圧電源７０や電気負荷４０
に高圧電力が流れ込むことがなく、三相インバータ１８
は全力で同期機２０を駆動することができる。Since the switch means 60 is turned off at the time of starting the engine, the low-voltage power supply 70 and the electric load 40 are supplied from the three-phase inverter 18 through the diodes 15 to 17.
High-voltage power does not flow into the three-phase inverter 18
Can drive the synchronous machine 20 with full power.
【００２８】（発電動作）次に低圧電源７０充電のため
の低圧発電動作を以下に説明する。(Power Generation Operation) Next, the low voltage power generation operation for charging the low voltage power supply 70 will be described below.
【００２９】エンジンが始動すると、同期機２０を発電
動作させて低圧電源７０を充電する。すなわち、スイッ
チ手段６０をオンすると、ダイオード１５〜１７とダイ
オード１１〜１３とからなる三相全波整流器により整流
された直流電流がスイッチ手段６０を通じて低圧電源７
０に給電され、低圧電源７０が充電される。この時、イ
ンバータ制御回路５０のドライバトランジスタＴrはオ
フされるので、低圧電源７０の電圧が抵抗分圧回路で分
圧され、定電圧ダイオード３７でレベルシフトされて前
置トランジスタ３６に印加される。これにより、抵抗分
圧回路の出力電圧（分圧）が定電圧ダイオード３７の電
圧降下と前置トランジスタ３６のオン電圧との和を超え
れば前置トランジスタ３６がオンし、トランジスタ３５
がオフして界磁電流がオフされる。また、抵抗分圧回路
の出力電圧（分圧）が定電圧ダイオード３７の電圧降下
と前置トランジスタ３６のオン電圧との和を下回れば前
置トランジスタ３６がオフし、トランジスタ３５がオン
して界磁電流が流れる。これにより、低圧電源７０の電
圧を所定値に収束する制御が行われる。その結果、同期
機２０の発電電圧は、低圧電源７０に適応した低電圧と
なる。When the engine starts, the low-voltage power supply 70 is charged by operating the synchronous machine 20 to generate electric power. That is, when the switch means 60 is turned on, the DC current rectified by the three-phase full-wave rectifier including the diodes 15 to 17 and the diodes 11 to 13 is supplied to the low-voltage power supply 7 through the switch means 60.
0, and the low-voltage power supply 70 is charged. At this time, since the driver transistor Tr of the inverter control circuit 50 is turned off, the voltage of the low-voltage power supply 70 is divided by the resistance voltage dividing circuit, level-shifted by the constant voltage diode 37, and applied to the front transistor 36. Thereby, if the output voltage (voltage division) of the resistance voltage dividing circuit exceeds the sum of the voltage drop of the constant voltage diode 37 and the ON voltage of the pre-transistor 36, the pre-transistor 36 is turned on, and the transistor 35
Is turned off, and the field current is turned off. If the output voltage (divided voltage) of the resistance voltage dividing circuit is lower than the sum of the voltage drop of the constant voltage diode 37 and the on-voltage of the pre-transistor 36, the pre-transistor 36 is turned off, and the transistor 35 is turned on. Magnetic current flows. Thus, control for converging the voltage of the low-voltage power supply 70 to a predetermined value is performed. As a result, the generated voltage of the synchronous machine 20 becomes a low voltage adapted to the low-voltage power supply 70.
【００３０】次に、高圧電源１充電のための高圧発電動
作を以下に説明する。なお、この時、低圧発電動作が行
われ、同期機２０の界磁巻線２１には所定の界磁電流が
通電されていてもよいが、更に好適には信号線５１をロ
ーレベル電位としてトランジスタ３５を大デューティ比
又は連続オンして、界磁束を増大することが好ましい。Next, the high voltage power generation operation for charging the high voltage power supply 1 will be described below. At this time, a low-voltage power generation operation may be performed, and a predetermined field current may be applied to the field winding 21 of the synchronous machine 20. More preferably, the signal line 51 is set to a low level potential to set the transistor to a low level. It is preferable to increase the field magnetic flux by turning on a large duty ratio or continuously turning on 35.
【００３１】まず、三相インバータ１８の下アームのス
イッチング素子５〜７を所定期間オンする。これによ
り、三相インバータ１８の各交流出力端の電位は略接地
電位となり、ダイオード１５〜１７を通じての低圧電源
７０の充電電流は遮断されるので、この状態においてス
イッチ手段６０を電流遮断状態でオフする。この時、同
期機２０の三相電機子巻線はスイッチング素子５〜７に
より短絡状態となるため、大きなインダクタンスをもつ
三相電機子巻線には大きな磁気エネルギーが蓄積され
る。First, the switching elements 5 to 7 of the lower arm of the three-phase inverter 18 are turned on for a predetermined period. As a result, the potential of each AC output terminal of the three-phase inverter 18 becomes substantially the ground potential, and the charging current of the low-voltage power supply 70 through the diodes 15 to 17 is cut off. In this state, the switch means 60 is turned off in the current cutoff state. I do. At this time, since the three-phase armature winding of the synchronous machine 20 is short-circuited by the switching elements 5 to 7, large magnetic energy is stored in the three-phase armature winding having a large inductance.
【００３２】その後、スイッチング素子５〜７をオフす
ると、三相電機子巻線の相間電圧はブーストアップされ
て高圧となり、昇圧された三相電機子巻線の高圧の三相
交流電圧は、三相インバータ１８のダイオード８〜１３
で全波整流されて高圧電源１を充電する。この充電によ
り三相電機子巻線に蓄積された磁気エネルギーは消耗
し、三相電機子巻線が出力する三相交流電圧は低下す
る。したがって、スイッチング素子５〜７の同時オンと
同時オフとを所定インタバルで繰り返すことにより、定
常的には低圧電源７０の充電に適した低圧発電を行う同
期機２０を用いて高圧電源１の充電を行うことができ
る。スイッチング素子５〜７の同時オンの時間は、イン
バータ制御回路５０が高圧電源１の電圧と所定の目標電
圧との差に応じて調整することが好ましく、高圧電源１
の電圧が所定の目標電圧に近づくほどスイッチング素子
５〜７の同時オンの時間を減少させ、三相電機子巻線へ
の磁気エネルギーの蓄積量を減らすことができる。Thereafter, when the switching elements 5 to 7 are turned off, the inter-phase voltage of the three-phase armature winding is boosted to a high voltage, and the boosted three-phase AC voltage of the three-phase armature winding is changed to a three-phase AC voltage. Diodes 8 to 13 of inverter 18
And the high-voltage power supply 1 is charged. Due to this charging, the magnetic energy stored in the three-phase armature winding is consumed, and the three-phase AC voltage output from the three-phase armature winding decreases. Therefore, by repeatedly turning on and off the switching elements 5 to 7 at a predetermined interval at a predetermined interval, the charging of the high-voltage power supply 1 is normally performed using the synchronous machine 20 that performs low-voltage power generation suitable for charging the low-voltage power supply 70. It can be carried out. The time during which the switching elements 5 to 7 are simultaneously turned on is preferably adjusted by the inverter control circuit 50 in accordance with the difference between the voltage of the high-voltage power supply 1 and a predetermined target voltage.
Is closer to a predetermined target voltage, the time during which the switching elements 5 to 7 are simultaneously turned on can be reduced, and the amount of magnetic energy stored in the three-phase armature winding can be reduced.
【００３３】この実施例によれば、いわゆるチョッパ方
式の昇圧回路を採用するにもかかわらず、磁気エネルギ
ー蓄積素子として同期機２０の三相電機子巻線を用いる
ので、従来のＤＣ−ＤＣコンバータに比較してチョーク
コイルや昇圧トランスを省略することができ、回路構成
が簡素とすることができる。According to this embodiment, the three-phase armature winding of the synchronous machine 20 is used as the magnetic energy storage element despite the adoption of the so-called chopper type booster circuit. In comparison, the choke coil and the step-up transformer can be omitted, and the circuit configuration can be simplified.
【００３４】高圧電源１が充電され、電流センサ１９が
検出する高圧電源１への充電電流が十分に小さくなった
ら、もしくは高圧電源１の電圧が所定値に達したら、ス
イッチング素子５〜７の同時オンを停止し、スイッチ手
段６０をオンして、同期機２０の発電電圧におり低圧電
源７０を再び充電すればよい。When the high-voltage power supply 1 is charged and the charging current to the high-voltage power supply 1 detected by the current sensor 19 becomes sufficiently small, or when the voltage of the high-voltage power supply 1 reaches a predetermined value, the switching elements 5 to 7 The on-state is stopped, the switch means 60 is turned on, and the low-voltage power supply 70 is charged again at the generated voltage of the synchronous machine 20.
【００３５】なお、スイッチ手段６０がリレーである場
合には、オンした瞬間の電流を低減するために、信号線
５１の電位をハイレベルとしてトランジスタ３５を遮断
し、界磁電流を低減した状態でスイッチ手段６０をオン
するのが好適である。When the switching means 60 is a relay, the potential of the signal line 51 is set to a high level to cut off the transistor 35 and reduce the field current in order to reduce the current at the moment of turning on. Preferably, the switch means 60 is turned on.
【００３６】（回生制動動作）車両減速時の回生制動動
作について以下に説明する。(Regenerative braking operation) The regenerative braking operation when the vehicle is decelerated will be described below.
【００３７】この場合には、まず信号線５１の電位を低
下させて同期機２０から低圧電源７０への充電を強制的
に行い、低圧電源７０の電圧が所定電圧に達したら、上
記した高圧電源１の充電動作を行うことができる。その
他、高圧電源１の充電を先に行い、その電圧が所定値に
達したら低圧電源７０の充電に切り替えてもよい。ま
た、高圧電源１の充電動作と低圧電源７０の充電動作と
をそれらの電圧が所定値に達するまで交互に実施しても
よい。In this case, first, the potential of the signal line 51 is lowered to forcibly charge the low-voltage power supply 70 from the synchronous machine 20. When the voltage of the low-voltage power supply 70 reaches a predetermined voltage, 1 can be performed. Alternatively, charging of the high-voltage power supply 1 may be performed first, and switching to charging of the low-voltage power supply 70 when the voltage reaches a predetermined value. Further, the charging operation of the high-voltage power supply 1 and the charging operation of the low-voltage power supply 70 may be performed alternately until their voltages reach a predetermined value.
【００３８】（変形態様）上記実施例では、高圧電源１
は二次電池を用いたが、高圧蓄電手段をなす平滑コンデ
ンサ１４として電気二重層コンデンサ等の大容量コンデ
ンサを用いる場合には、高圧電源１を省略することがで
きる。(Modification) In the above embodiment, the high-voltage power supply 1
Used a secondary battery, but when a large-capacity capacitor such as an electric double-layer capacitor is used as the smoothing capacitor 14 constituting the high-voltage power storage means, the high-voltage power supply 1 can be omitted.
【図１】実施例１の車両用二電源回路を示す回路図であ
る。FIG. 1 is a circuit diagram illustrating a dual power supply circuit for a vehicle according to a first embodiment.
２０ 交流回転電機 １ 高圧バッテリ（高圧蓄電部） ７０ 低圧バッテリ（低圧蓄電部） １５〜１７ ダイオード（整流回路） １８ インバータ回路 ６０ 遮断部 ５０ 制御回路 Reference Signs List 20 AC rotating electric machine 1 High-voltage battery (high-voltage power storage unit) 70 Low-voltage battery (low-voltage power storage unit) 15 to 17 Diode (rectifier circuit) 18 Inverter circuit 60 Interruption unit 50 Control circuit
Claims (6)
力を整流して前記低圧蓄電部を充電する整流回路と、 前記交流回転電機の電動動作時に前記高圧蓄電部の高圧
電力を前記交流回転電機に給電し、前記交流回転電機の
発電時に発電電力を昇圧して前記高圧蓄電部を充電する
インバータ回路と、 前記整流回路と直列に接続されて前記高圧蓄電部の充電
時に前記交流回転電機が出力する発電電力が前記整流回
路を通じて前記低圧蓄電部に給電されるのを禁止する遮
断部と、 前記インバータ回路及び前記遮断部を制御する制御回路
と、 を備えることを特徴とする車両用二電源回路。An AC rotating electric machine; a high-voltage power storage unit; a low-voltage power storage unit; a rectifying circuit that rectifies power generated by the AC rotating electric machine when the AC rotating electric machine generates power to charge the low-voltage power storage unit; An inverter circuit that supplies high-voltage power of the high-voltage power storage unit to the AC rotary electric machine during an electric operation of the AC rotary electric machine, charges the high-voltage power storage unit by boosting generated power during power generation of the AC rotary electric machine, and the rectifier circuit. A shut-off unit connected in series with the high-voltage storage unit to inhibit power generated by the AC rotating electric machine from being supplied to the low-voltage storage unit through the rectifier circuit when charging the high-voltage storage unit; and the inverter circuit and the cut-off unit. And a control circuit for controlling the vehicle.
て、 前記制御回路は、前記交流回転電機の発電時に前記交流
回転電機の電機子巻線を短周期ごとに短絡することによ
り前記発電電力を昇圧して前記高圧蓄電部を充電するこ
とを特徴とする車両用二電源回路。2. The dual power supply circuit for a vehicle according to claim 1, wherein the control circuit short-circuits armature windings of the AC rotating electric machine at short intervals during power generation of the AC rotating electric machine, thereby generating the generated power. A dual power supply circuit for a vehicle, which boosts the voltage of the battery and charges the high-voltage power storage unit.
て、 前記制御回路は、前記インバータ回路の同一アームのス
イッチング素子を同時オンすることにより前記短絡を実
施することを特徴とする車両用二電源回路。3. The vehicle power supply circuit according to claim 2, wherein the control circuit performs the short circuit by simultaneously turning on switching elements of the same arm of the inverter circuit. Power circuit.
おいて、 前記遮断部は、前記整流回路と直列接続された開閉スイ
ッチからなり、 前記制御回路は、前記短絡中及び短絡開放後の所定時間
に前記開閉スイッチをオフすることを特徴とする車両用
二電源回路。4. The dual power supply circuit for a vehicle according to claim 2, wherein the shut-off unit comprises an open / close switch connected in series with the rectifier circuit, and the control circuit operates during the short circuit and after the short circuit is opened. A dual power supply circuit for a vehicle, wherein the open / close switch is turned off at a predetermined time.
て、 前記制御回路は、界磁巻線型同期機により構成されてエ
ンジンを始動する前記交流回転電機の界磁電流を前記エ
ンジン始動時に最大値とすることを特徴とする車両用二
電源回路。5. The dual power supply circuit for a vehicle according to claim 1, wherein the control circuit is configured by a field winding type synchronous machine to increase a field current of the AC rotating electric machine for starting an engine when the engine is started. A dual power supply circuit for a vehicle, characterized in that the value is a value.
て、 前記制御回路は、前記電動動作時に前記遮断部を遮断す
ることを特徴とする車両用二電源回路。6. The dual power supply circuit for a vehicle according to claim 1, wherein the control circuit shuts off the interrupting section during the electric operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001093339A JP2002291169A (en) | 2001-03-28 | 2001-03-28 | On-board double-power-supply circuit with motor- generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001093339A JP2002291169A (en) | 2001-03-28 | 2001-03-28 | On-board double-power-supply circuit with motor- generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002291169A true JP2002291169A (en) | 2002-10-04 |
Family
ID=18947683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001093339A Pending JP2002291169A (en) | 2001-03-28 | 2001-03-28 | On-board double-power-supply circuit with motor- generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002291169A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014181631A1 (en) * | 2013-05-08 | 2014-11-13 | 日本電気株式会社 | Power source device and power supply method |
-
2001
- 2001-03-28 JP JP2001093339A patent/JP2002291169A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014181631A1 (en) * | 2013-05-08 | 2014-11-13 | 日本電気株式会社 | Power source device and power supply method |
| JPWO2014181631A1 (en) * | 2013-05-08 | 2017-02-23 | 日本電気株式会社 | Power supply device and power supply method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8884564B2 (en) | Voltage converter and voltage converter system including voltage converter | |
| JP4274364B2 (en) | DC-DC converter | |
| US8618771B2 (en) | Electric powered vehicle, vehicle charge device and vehicle charge system | |
| US7816805B2 (en) | Power supply system with multiphase motor and multiphase inverter | |
| US5350994A (en) | Electric system for an electric vehicle | |
| US8143824B2 (en) | Regenerating braking system including synchronous motor with field excitation and control method thereof | |
| WO2004055963A1 (en) | Power unit for automobile | |
| WO2012168983A1 (en) | Charging device | |
| JP2011239493A (en) | Output controller for hybrid engine generator | |
| JP5857998B2 (en) | DRIVE DEVICE AND VEHICLE HAVING DRIVE DEVICE | |
| JPH118910A (en) | Power supply equipment for hybrid electric vehicle | |
| JP2000050402A (en) | Power source unit for hybrid electric automobile | |
| JP5288178B2 (en) | Motor drive system | |
| JP2006081263A (en) | Bidirectional dc-dc converter | |
| JPH07115704A (en) | Retarder | |
| JPH09233709A (en) | Charger for electric car | |
| JP4591741B2 (en) | Rotating electric machine drive device for vehicle | |
| JPH1084628A (en) | Power supply unit for driving motor | |
| KR101602818B1 (en) | Torque Assist System for Mild Hybrid Vehicle | |
| KR102063921B1 (en) | Vehicle power control device | |
| JP2000050404A (en) | Power source unit for hybrid electric automobile | |
| JP2002291169A (en) | On-board double-power-supply circuit with motor- generator | |
| JP3444316B2 (en) | Charging device | |
| KR102008750B1 (en) | Vehicle power control device | |
| KR102008753B1 (en) | Vehicle power control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070425 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20090213 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090317 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20090707 |