JPH0549101A - Power supply protective circuit for vehicle - Google Patents
Power supply protective circuit for vehicleInfo
- Publication number
- JPH0549101A JPH0549101A JP19534991A JP19534991A JPH0549101A JP H0549101 A JPH0549101 A JP H0549101A JP 19534991 A JP19534991 A JP 19534991A JP 19534991 A JP19534991 A JP 19534991A JP H0549101 A JPH0549101 A JP H0549101A
- Authority
- JP
- Japan
- Prior art keywords
- power
- battery
- circuit
- inverter
- inverter circuit
- 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
Classifications
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/06—Limiting the traction current under mechanical overload conditions
-
- 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
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/04—Cutting off the power supply under fault conditions
-
- 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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/61—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
-
- 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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
- B60L58/14—Preventing excessive discharging
-
- 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
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/20—Braking by supplying regenerated power to the prime mover of vehicles comprising engine-driven generators
-
- 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
- Y02T10/62—Hybrid vehicles
-
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、内燃機関−電気ハイブ
リッドシステムを使用する車両に搭載した冷凍機等の負
荷に電力を供給する直流電源の過負荷を防止できる車両
用電源保護回路に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle power source protection circuit capable of preventing an overload of a DC power source for supplying power to a load such as a refrigerator mounted on a vehicle using an internal combustion engine-electric hybrid system.
【０００２】[0002]
【従来の技術】この種の内燃機関−電気ハイブリッドシ
ステムは、大型ディーゼルエンジンのフライホイールハ
ウジング内に薄型の三相交流回転機を内蔵させ、前記三
相交流回転機の動作をインバータ装置で制御することに
より、ブレーキエネルギーを電気として回生し、あるい
はオルタネータとして電力を発生させ、その電力により
バッテリ等の直流電源を充電し、また車両の発進・加速
時には前記直流電源から前記三相交流回転機に電力を供
給し電動機として動作させることによりディーゼルエン
ジンのトルクを補助するようにした装置として同一出願
人により提案されている。2. Description of the Related Art In this type of internal combustion engine-electric hybrid system, a thin three-phase AC rotary machine is built in a flywheel housing of a large diesel engine, and the operation of the three-phase AC rotary machine is controlled by an inverter device. As a result, the braking energy is regenerated as electricity or electric power is generated as an alternator, and the direct current power source such as a battery is charged by the electric power, and when the vehicle starts and accelerates, the direct current power source supplies power to the three-phase alternating current rotating machine. Has been proposed by the same applicant as a device adapted to assist the torque of a diesel engine by supplying the electric power to the motor and operating it as an electric motor.
【０００３】このようなシステムを装備した車両に冷凍
機等の電力負荷を搭載したものが提供されている。There is provided a vehicle equipped with such a system in which a power load such as a refrigerator is mounted.
【０００４】図３は前記電力負荷を含むディーゼル−電
気ハイブリッドシステムを示す図である。図３におい
て、大型ディーゼルエンジン１は、フライホイールハウ
ジング２内に薄型の三相交流回転機３を内蔵させてあ
る。このフライホイールハウジング２の後部には、トラ
ンスミッション４が設けられている。ディーゼルエンジ
ン１の回転軸には、回転センサ５が設けてある。前記三
相交流回転機３は第一のインバータ回路を含む電力変換
装置６に接続されている。電力変換装置６には、ブレー
キエネルギー消費用の抵抗器７が接続されている。ま
た、電力変換装置６の電気端子には、直流電源であるバ
ッテリ８と、第二のインバータ回路を含む第二電力変換
装置９とが接続されている。また、電力変換装置６に
は、回転センサ５からの回転検出信号、スタータスイッ
チ１０からの信号、リターダ調整レバー１１からの信
号、及びアクセルセンサ１２からのアクセル開度信号が
それぞれ入力される。なお、アクセルセンサ１２のアク
セル開度信号は電子ガバナ用コンピュータ１３に入力さ
れ、電子ガバナ用コンピュータ１３の制御により燃料噴
射ポンプ１４が駆動されるようにしてある。また、冷凍
機等を駆動する交流電動機１５には、前記第二のインバ
ータ回路を含む第二電力変換装置９から交流電力が供給
されるようにしてある。FIG. 3 is a diagram showing a diesel-electric hybrid system including the electric load. In FIG. 3, a large diesel engine 1 has a flywheel housing 2 in which a thin three-phase AC rotating machine 3 is built. A transmission 4 is provided at the rear of the flywheel housing 2. A rotation sensor 5 is provided on the rotation shaft of the diesel engine 1. The three-phase AC rotating machine 3 is connected to a power converter 6 including a first inverter circuit. A resistor 7 for braking energy consumption is connected to the power converter 6. Further, a battery 8 which is a DC power source and a second power conversion device 9 including a second inverter circuit are connected to the electric terminals of the power conversion device 6. Further, the rotation detection signal from the rotation sensor 5, the signal from the starter switch 10, the signal from the retarder adjusting lever 11, and the accelerator opening signal from the accelerator sensor 12 are input to the power converter 6. The accelerator opening signal of the accelerator sensor 12 is input to the electronic governor computer 13, and the fuel injection pump 14 is driven by the control of the electronic governor computer 13. In addition, AC power is supplied from the second power conversion device 9 including the second inverter circuit to the AC motor 15 that drives the refrigerator or the like.
【０００５】上記構成のシステムにおいて、システム始
動時には、スタータスイッチ１０からの信号を受けた電
力変換装置６が三相交流回転機３をスタータとして動作
させる。車両の発進・加速時には、アクセルセンサ１２
からの信号を受けた電力変換装置６が三相交流回転機３
をトルクアシスト用モータとして作動させる。また、車
両制動時には、リターダ調整レバー１１からの信号を受
けたインバータ６が三相交流回転機３をリターダ（電気
ブレーキ）として作動させる。このとき、回生されるエ
ネルギーが過剰の場合は、抵抗器７によってブレーキエ
ネルギーの消費を行わせる。また、第二のインバータ回
路を含む第二電力変換装置９は、バッテリ８からの直流
電力を交流電力に変換し、交流電動機１５に供給され
る。これにより電動機１５は、冷凍機等を回転駆動す
る。In the system having the above-mentioned structure, when the system is started, the power converter 6 which receives the signal from the starter switch 10 operates the three-phase AC rotating machine 3 as a starter. When the vehicle starts and accelerates, the accelerator sensor 12
The power converter 6 that receives the signal from the three-phase AC rotating machine 3
Is operated as a torque assist motor. When the vehicle is braked, the inverter 6 that receives the signal from the retarder adjusting lever 11 operates the three-phase AC rotating machine 3 as a retarder (electric brake). At this time, when the regenerated energy is excessive, the braking energy is consumed by the resistor 7. The second power converter 9 including the second inverter circuit converts the DC power from the battery 8 into AC power and supplies the AC power to the AC motor 15. As a result, the electric motor 15 rotationally drives the refrigerator or the like.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、上述し
たような冷凍機等の電力負荷を搭載した車両にあって
は、第二電力変換装置９で直流電力を交流電力に単に変
換して上記電動機１５へ供給し続けるだけなので、バッ
テリ８が放電状態になっても上記電動機１５への電力供
給をおこなってしまい、バッテリ８を過放電状態として
しまうという問題があった。前記バッテリ８は、一般の
自動車が使用する２４〔Ｖ〕の電源も兼ねているため、
バッテリ８の過放電により２４〔Ｖ〕の電力も供給でき
なきなるという不都合が生じ、この結果、始動はもちろ
ん走行もできなくなるという欠点があった。However, in a vehicle equipped with a power load such as a refrigerator as described above, the second power converter 9 simply converts DC power into AC power, and the electric motor 15 is used. However, even if the battery 8 is discharged, the electric power is supplied to the electric motor 15 and the battery 8 is over-discharged. Since the battery 8 also serves as a 24 [V] power source used by a general automobile,
The battery 8 is over-discharged, which causes the inconvenience that the electric power of 24 [V] cannot be supplied, and as a result, there is a drawback that the vehicle cannot be started or traveled.
【０００７】そこで、本発明の目的は、電力貯蔵放電が
可能な直流電源を保護できる車両用電源保護回路を提供
することにある。Therefore, an object of the present invention is to provide a vehicle power source protection circuit capable of protecting a DC power source capable of storing and discharging electric power.
【０００８】[0008]
【課題を解決するための手段】本発明の車両用電源保護
回路は、車両の車軸を駆動する内燃機関の主軸に連結さ
れた回転機と、直流電力を貯蔵できかつ貯蔵した直流電
力を放出できる直流電源と、前記直流電源から前記回転
機へ交流電力を供給するとともに、前記回転機からの発
電電力を前記直流電源に回生する第一のインバータ回路
と、前記直流電源から負荷へ交流電力を供給する第二の
インバータ回路と、前記直流電源の電圧を監視し、該電
圧が基準値以下となったときに前記第二のインバータ回
路の動作を停止する異常時制御手段とを備えたものであ
る。The vehicle power supply protection circuit of the present invention is capable of storing DC power and discharging the stored DC power, as well as a rotating machine connected to the main shaft of an internal combustion engine that drives the axle of the vehicle. A DC power source, a first inverter circuit that supplies AC power from the DC power source to the rotating machine, and regenerates generated power from the rotating machine to the DC power source, and supplies AC power to the load from the DC power source. A second inverter circuit for controlling the voltage of the DC power supply, and abnormal time control means for stopping the operation of the second inverter circuit when the voltage becomes equal to or lower than a reference value. .
【０００９】[0009]
【作用】上記車両用電源保護回路において、異常時制御
手段は、前記直流電源の電圧を取り込んでこれを監視
し、該電圧が基準値以下となったときにインバータ動作
停止信号を第二のインバータ回路に出力する。これによ
り、前記第二のインバータ回路は、インバータ動作を停
止することになる。したがって、基準電圧を直流電源の
放電状態にならない値にしておけば、直流電源の放電状
態を防止することができる。In the above vehicle power supply protection circuit, the abnormal time control means takes in the voltage of the DC power supply and monitors it, and when the voltage becomes equal to or lower than the reference value, outputs the inverter operation stop signal to the second inverter. Output to the circuit. As a result, the second inverter circuit stops the inverter operation. Therefore, the discharge state of the DC power supply can be prevented by setting the reference voltage to a value that does not cause the discharge state of the DC power supply.
【００１０】[0010]
【実施例】以下、本発明を添付図面の実施例により説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments of the accompanying drawings.
【００１１】図１は、本発明の車両用電源保護回路の実
施例を含むシステムの電気回路を示す回路図である。FIG. 1 is a circuit diagram showing an electric circuit of a system including an embodiment of a vehicle power source protection circuit of the present invention.
【００１２】図１において、三相交流回転機３の電気端
子は、電力変換装置６を介して直流電源であるバッテリ
８に接続されている。この電力変換装置６は、三相交流
回転機３からの発電電力をバッテリ８に供給し、逆にバ
ッテリ８からの電力を三相交流回転機３に供給でき、か
つ電気ブレーキ時に発電電力を抵抗器７で消費できるよ
うに構成してあり、第一のインバータ回路６１、第一の
チョッパ回路６２、平滑コンデンサ６３、及び電気ブレ
ーキ回路６４からなる。In FIG. 1, an electric terminal of the three-phase AC rotating machine 3 is connected to a battery 8 which is a DC power source via a power converter 6. This power conversion device 6 can supply the generated power from the three-phase AC rotary machine 3 to the battery 8 and conversely can supply the power from the battery 8 to the three-phase AC rotary machine 3, and can also resist the generated power during electric braking. It is configured so that it can be consumed by the device 7, and includes a first inverter circuit 61, a first chopper circuit 62, a smoothing capacitor 63, and an electric brake circuit 64.
【００１３】第一のインバータ回路６１は、図示しない
スイッチング素子の点弧時期を制御することにより、三
相交流回転機３を発電機あるいは電動機として動作させ
るように構成してある。また、第一のインバータ回路６
１の交流端子には三相交流回転機３が接続されており、
かつ第一のインバータ回路６１の直流端子には第一のチ
ョッパ回路６２、平滑コンデンサ６３及び電気ブレーキ
回路６４が接続されている。第一のチョッパ回路６２
は、スイッチングトランジスタ６２Ｑと、このトランジ
スタ６２Ｑのコレクタ・エミッタに逆極性で並列接続さ
れたバイパスダイオード６３Ｄａと、整流コイル６３Ｌ
と、フライホイールダイオード６３Ｄｂとを具備してい
る。第一のチョッパ回路６２は、供給される電力をスイ
ッチングトランジスタ６２Ｑでスイッチングした後整流
用コイル６２Ｌ及びダイオード６２Ｄｂの作用によりバ
ッテリ８を充電し、あるいはバッテリ８からの電力をバ
イパスダイオード６３Ｄａを介して第一のインバータ回
路６１に供給するように回路構成されている。電気ブレ
ーキ回路６４は、スイッチングトランジスタ６４Ｑ及び
これに逆極性で接続されたダイオード６４Ｄからなる並
列回路と、これに直列接続された抵抗器７とを備え、ス
イッチング素子６４Ｑをオン状態にして抵抗器７で電力
を消費させることにより電気ブレーキがかかるようにし
てある。The first inverter circuit 61 is configured to operate the three-phase AC rotating machine 3 as a generator or an electric motor by controlling the ignition timing of a switching element (not shown). In addition, the first inverter circuit 6
Three-phase AC rotating machine 3 is connected to the AC terminal of 1,
A first chopper circuit 62, a smoothing capacitor 63 and an electric brake circuit 64 are connected to the DC terminal of the first inverter circuit 61. First chopper circuit 62
Is a switching transistor 62Q, a bypass diode 63Da connected in parallel to the collector and emitter of the transistor 62Q with opposite polarities, and a rectifying coil 63L.
And a flywheel diode 63Db. The first chopper circuit 62 charges the battery 8 by the action of the rectifying coil 62L and the diode 62Db after switching the supplied electric power by the switching transistor 62Q, or supplies the electric power from the battery 8 via the bypass diode 63Da. The circuit is configured so as to be supplied to one inverter circuit 61. The electric brake circuit 64 includes a parallel circuit including a switching transistor 64Q and a diode 64D connected to the switching transistor 64Q in reverse polarity, and a resistor 7 connected in series to the parallel circuit, and turns on the switching element 64Q to turn the resistor 7 The electric brake is applied by consuming electric power.
【００１４】第二の電力変換装置９は、バッテリ８から
の直流電力をスイッチングして昇圧して出力する第二の
チョッパ回路９１と、この第二のチョッパ回路９１から
の出力を平滑する平滑用コンデンサ９２と、この平滑用
コンデンサ９２に蓄電された直流電力を交流電力にして
負荷である交流電動機１５に供給する第二のインバータ
回路９３とを含んでいる。この第二の電力変換装置９に
は、制御装置２０が接続されている。制御装置２０は、
上記バッテリ８の電圧を監視し、その電圧が基準値以下
となったときに、第二のチョッパ回路９１及び前記第二
のインバータ回路９３の動作を停止するように回路構成
されている。The second power converter 9 includes a second chopper circuit 91 for switching the DC power from the battery 8 to boost and output the DC power, and a smoothing circuit for smoothing the output from the second chopper circuit 91. It includes a capacitor 92 and a second inverter circuit 93 which converts the DC power stored in the smoothing capacitor 92 into AC power and supplies the AC power to the AC motor 15 as a load. A control device 20 is connected to the second power conversion device 9. The control device 20 is
The circuit is configured to monitor the voltage of the battery 8 and stop the operations of the second chopper circuit 91 and the second inverter circuit 93 when the voltage becomes a reference value or less.
【００１５】前記第二のチョッパ回路９１は、昇圧用コ
イル９１Ｌ、スイッチングトランジスタ９１Ｑ、トラン
ジスタ９１Ｑの保護ダイオード９１Ｄａ、逆流阻止用ダ
イオード９１Ｄｂを備え、バッテリ８の電力をトランジ
スタ９１Ｑでスイッチングした後昇圧用コイル９１Ｌ及
び逆流阻止用ダイオード９１Ｄｂの作用により電圧を昇
圧して平滑用コンデンサ９２に高圧直流電力を蓄電する
ように構成してある。また、制御装置２０は、図示しな
いがバッテリ８の電圧をデジタル化するアナログ・デジ
タル変換器と、このアナログ・デジタル変換器からのデ
ジタルデータを処理してスイッチング停止信号を出力で
きるコンピュータ装置とから構成すればよい。The second chopper circuit 91 includes a boosting coil 91L, a switching transistor 91Q, a protection diode 91Da for the transistor 91Q, and a reverse current blocking diode 91Db. The voltage is boosted by the action of 91L and the backflow prevention diode 91Db to store high-voltage DC power in the smoothing capacitor 92. The control device 20 is composed of an analog / digital converter (not shown) that digitizes the voltage of the battery 8 and a computer device that can process digital data from the analog / digital converter and output a switching stop signal. do it.
【００１６】次に、上述したように構成した実施例の作
用を図１及び図２を参照して説明する。ここで、図２
は、制御装置２０の動作を説明するためのフローチャー
トである。Next, the operation of the embodiment configured as described above will be described with reference to FIGS. Here, FIG.
3 is a flowchart for explaining the operation of the control device 20.
【００１７】三相交流回転機３で発電した電力は、第一
のインバータ回路６１でスイッチングされて平滑コンデ
ンサ６３に平滑蓄電される。平滑コンデンサ６３に蓄電
された電力は、スイッチングトランジスタ６２Ｑでスイ
ッチングされた後、整流用コイル６２Ｌ及びダイオード
６２Ｄｂの作用によりバッテリ８を充電する。The electric power generated by the three-phase AC rotating machine 3 is switched by the first inverter circuit 61 and stored in the smoothing capacitor 63 in a smooth manner. The electric power stored in the smoothing capacitor 63 is switched by the switching transistor 62Q, and then the battery 8 is charged by the action of the rectifying coil 62L and the diode 62Db.
【００１８】また、バッテリ８からの電力は、バイパス
ダイオード６３Ｄａを介して第一のインバータ回路６１
に供給する。第一のインバータ回路６１は、必要に応じ
て三相交流回転機３を交流電動機にし、ディーゼルエン
ジン１をトルク補助する。なお、余剰電力等は、電気ブ
レーキ回路６４のスイッチング６４Ｑをオン状態にする
ことにより、抵抗器７で消費される。The electric power from the battery 8 is supplied to the first inverter circuit 61 via the bypass diode 63Da.
Supply to. The first inverter circuit 61 converts the three-phase AC rotating machine 3 into an AC electric motor as needed to assist the diesel engine 1 with torque. The surplus power and the like are consumed by the resistor 7 by turning on the switching 64Q of the electric brake circuit 64.
【００１９】ところで、三相交流回転機３や第一のイン
バータ回路６１、第一のチョッパ回路６２等の故障によ
り、バッテリ８が充電されなくなったとき、電力負荷で
ある交流電動機１５にバッテリ８から電力を供給し続け
ると、バッテリ８が過放電状態になってしまう。そこ
で、制御装置２０は、まず、バッテリ８の電圧をアナロ
グデジタル変換器（図示せず）を介してコンピュータ装
置に取り込む（ステップ100）。ついで、制御装置２０
は、取り込んだバッテリ８の電圧が基準値以下となった
ときに（ステップ101）、第二のチョッパ回路９１及び
前記第二のインバータ回路９３の動作を停止する信号Ｖ
cを出力する（ステップ102）。これにより、第二のチョ
ッパ回路９１及び第二のインバータ回路９３は動作が停
止することになる（ステップ103）。By the way, when the battery 8 is no longer charged due to a failure of the three-phase AC rotating machine 3, the first inverter circuit 61, the first chopper circuit 62, etc., the AC motor 15, which is a power load, is transferred from the battery 8 to the AC motor 15. If the power is continuously supplied, the battery 8 will be in an over-discharged state. Therefore, the control device 20 first takes in the voltage of the battery 8 into the computer device via an analog-digital converter (not shown) (step 100). Then, the control device 20
Is a signal V for stopping the operations of the second chopper circuit 91 and the second inverter circuit 93 when the voltage of the taken-in battery 8 becomes equal to or lower than the reference value (step 101).
Output c (step 102). As a result, the operations of the second chopper circuit 91 and the second inverter circuit 93 are stopped (step 103).
【００２０】制御装置２０は、取り込んだバッテリ８の
電圧が基準値以上の場合（ステップ101）、信号Ｖcを出
力せずに通常のスイッチング動作を続けさせ、かつバッ
テリ８の電圧を取り込み、かつ電圧を基準値以下となる
か否かを判定する動作を繰り返す（ステップ100〜10
1）。When the taken-in voltage of the battery 8 is equal to or higher than the reference value (step 101), the control device 20 continues the normal switching operation without outputting the signal Vc, takes in the voltage of the battery 8, and Is repeated (steps 100 to 10).
1).
【００２１】このように本実施例では、直流電源である
バッテリ８の電圧値が放電状態に応じて低下することを
制御装置２０で検出し、その検出電圧が一定値以下にな
ったときに第二のインバータ回路９３の動作を停止する
ことにより、バッテリ８の過放電を防止し、車両の始動
あるいは走行ができなくなることを防止する。As described above, in this embodiment, the control device 20 detects that the voltage value of the battery 8 which is a DC power source decreases in accordance with the discharge state, and when the detected voltage becomes a certain value or less, By stopping the operation of the second inverter circuit 93, the battery 8 is prevented from being over-discharged and the vehicle cannot be started or run.
【００２２】[0022]
【発明の効果】以上説明したように本発明によれば、直
流電源の電圧を監視し、これが一定値以下になったとき
に、電力負荷に電力を供給する第二のインバータ回路の
動作を停止することにより、直流電源が放電することを
防止し、車両の始動あるいは走行ができなくなることを
防止することができるという効果がある。As described above, according to the present invention, the voltage of the DC power supply is monitored, and when it falls below a certain value, the operation of the second inverter circuit for supplying power to the power load is stopped. By doing so, it is possible to prevent the DC power supply from being discharged and prevent the vehicle from being unable to start or run.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の一実施例を示す回路図である。FIG. 1 is a circuit diagram showing an embodiment of the present invention.
【図２】本発明の実施例の動作を説明するためのフロー
チャートである。FIG. 2 is a flow chart for explaining the operation of the embodiment of the present invention.
【図３】従来の内燃機関−電気ハイブリッドシステムを
示す構成図である。FIG. 3 is a configuration diagram showing a conventional internal combustion engine-electric hybrid system.
１ ディーゼルエンジン ３ 三相交流回転機 ６ インバータ ７ 抵抗器 ８ バッテリ（直流電源） ９ 第二の電力変換装置 １５ 三相電動機（電力負荷） ２０ 制御装置（異常時制御手段） ６１ 第一のインバータ回路 ６２ 第一のチョッパ回路 ９１ 第二のチョッパ回路 ９３ 第二のインバータ回路 1 Diesel Engine 3 Three-Phase AC Rotating Machine 6 Inverter 7 Resistor 8 Battery (DC Power Supply) 9 Second Power Converter 15 Three-Phase Motor (Power Load) 20 Controller (Abnormal State Control Means) 61 First Inverter Circuit 62 First Chopper Circuit 91 Second Chopper Circuit 93 Second Inverter Circuit
───────────────────────────────────────────────────── フロントページの続き (72)発明者 古藤 隆志 東京都日野市日野台３丁目１番地１ 日野 自動車工業株式会社日野工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Furudo 3-1-1 Hinodai, Hino-shi, Tokyo Hino Motors Co., Ltd. Hino factory
Claims (1)
連結された回転機と、直流電力を貯蔵できかつ貯蔵した
直流電力を放出できる直流電源と、前記直流電源から前
記回転機へ交流電力を供給するとともに、前記回転機か
らの発電電力を前記直流電源に回生する第一のインバー
タ回路と、前記直流電源から負荷へ交流電力を供給する
第二のインバータ回路と、前記直流電源の電圧を監視
し、該電圧が基準値以下となったときに前記第二のイン
バータ回路の動作を停止する異常時制御手段とを備えた
車両用電源保護回路。1. A rotating machine connected to a main shaft of an internal combustion engine for driving an axle of a vehicle, a DC power supply capable of storing DC power and discharging the stored DC power, and AC power from the DC power supply to the rotating machine. And a second inverter circuit that supplies AC power to the load from the DC power supply, a first inverter circuit that regenerates the generated power from the rotating machine to the DC power supply, and a voltage of the DC power supply. A power supply protection circuit for a vehicle, comprising: an abnormality control means for monitoring and stopping the operation of the second inverter circuit when the voltage becomes equal to or lower than a reference value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19534991A JPH0549101A (en) | 1991-08-05 | 1991-08-05 | Power supply protective circuit for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19534991A JPH0549101A (en) | 1991-08-05 | 1991-08-05 | Power supply protective circuit for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0549101A true JPH0549101A (en) | 1993-02-26 |
Family
ID=16339692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19534991A Pending JPH0549101A (en) | 1991-08-05 | 1991-08-05 | Power supply protective circuit for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0549101A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001119808A (en) * | 1999-10-13 | 2001-04-27 | Honda Motor Co Ltd | Control device for hybrid electric vehicle |
| US6515872B2 (en) | 2000-11-14 | 2003-02-04 | Toyota Jidosha Kabushiki Kaisha | Automobile and electric power system controller thereof |
| JP2004505586A (en) * | 2000-07-19 | 2004-02-19 | ダイムラークライスラー アーゲー | Energy conversion system and operating method thereof |
| FR2843921A1 (en) * | 2002-08-28 | 2004-03-05 | Honda Motor Co Ltd | Electric supply for an electrically powered scooter or bicycle, uses relay switched resistance to dissipate excess energy during regenerative braking in battery powered scooter or bicycle |
| JP2004135376A (en) * | 2002-10-08 | 2004-04-30 | Toyota Motor Corp | Method and apparatus for controlling hybrid vehicle |
| JP2004282999A (en) * | 2004-04-20 | 2004-10-07 | Honda Motor Co Ltd | Controlling equipment and control method of hybrid vehicle |
| WO2006131533A2 (en) * | 2005-06-10 | 2006-12-14 | Siemens Vdo Automotive Ag | Arrangement provided with a recording device |
| JP2017189075A (en) * | 2016-04-08 | 2017-10-12 | 株式会社デンソー | Device for controlling rotary electric machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59172909A (en) * | 1983-03-22 | 1984-09-29 | Daihatsu Motor Co Ltd | Controller of electric automobile |
| JPS63206101A (en) * | 1987-02-18 | 1988-08-25 | Hino Motors Ltd | Electric braking and auxiliary accelerating apparatus |
| JPS645302A (en) * | 1987-06-25 | 1989-01-10 | Toyoda Automatic Loom Works | Controller for battery car |
-
1991
- 1991-08-05 JP JP19534991A patent/JPH0549101A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59172909A (en) * | 1983-03-22 | 1984-09-29 | Daihatsu Motor Co Ltd | Controller of electric automobile |
| JPS63206101A (en) * | 1987-02-18 | 1988-08-25 | Hino Motors Ltd | Electric braking and auxiliary accelerating apparatus |
| JPS645302A (en) * | 1987-06-25 | 1989-01-10 | Toyoda Automatic Loom Works | Controller for battery car |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001119808A (en) * | 1999-10-13 | 2001-04-27 | Honda Motor Co Ltd | Control device for hybrid electric vehicle |
| JP2004505586A (en) * | 2000-07-19 | 2004-02-19 | ダイムラークライスラー アーゲー | Energy conversion system and operating method thereof |
| US6515872B2 (en) | 2000-11-14 | 2003-02-04 | Toyota Jidosha Kabushiki Kaisha | Automobile and electric power system controller thereof |
| FR2843921A1 (en) * | 2002-08-28 | 2004-03-05 | Honda Motor Co Ltd | Electric supply for an electrically powered scooter or bicycle, uses relay switched resistance to dissipate excess energy during regenerative braking in battery powered scooter or bicycle |
| US7082018B2 (en) | 2002-08-28 | 2006-07-25 | Honda Giken Kogyo Kabushiki Kaisha | Power supply apparatus in electric vehicle |
| JP2004135376A (en) * | 2002-10-08 | 2004-04-30 | Toyota Motor Corp | Method and apparatus for controlling hybrid vehicle |
| JP2004282999A (en) * | 2004-04-20 | 2004-10-07 | Honda Motor Co Ltd | Controlling equipment and control method of hybrid vehicle |
| WO2006131533A2 (en) * | 2005-06-10 | 2006-12-14 | Siemens Vdo Automotive Ag | Arrangement provided with a recording device |
| WO2006131533A3 (en) * | 2005-06-10 | 2007-03-08 | Siemens Ag | Arrangement provided with a recording device |
| JP2017189075A (en) * | 2016-04-08 | 2017-10-12 | 株式会社デンソー | Device for controlling rotary electric machine |
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