JP3055749B2 - Automotive braking and auxiliary power units - Google Patents
Automotive braking and auxiliary power unitsInfo
- Publication number
- JP3055749B2 JP3055749B2 JP5263862A JP26386293A JP3055749B2 JP 3055749 B2 JP3055749 B2 JP 3055749B2 JP 5263862 A JP5263862 A JP 5263862A JP 26386293 A JP26386293 A JP 26386293A JP 3055749 B2 JP3055749 B2 JP 3055749B2
- Authority
- JP
- Japan
- Prior art keywords
- internal combustion
- combustion engine
- power generation
- induction machine
- storage means
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
-
- 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
- Y02T10/64—Electric machine technologies in electromobility
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
Landscapes
- Control Of Charge By Means Of Generators (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Control Of Eletrric Generators (AREA)
- Hybrid Electric Vehicles (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、内燃機関と電気動力装
置とを備えたハイブリッド自動車に利用する。本発明
は、主動力を内燃機関とする自動車の制動により発生す
る機械的エネルギを電気的エネルギに変換して大型の蓄
電手段（二次電池または静電容量）に蓄積し、内燃機関
を加速するときに蓄電された電気的エネルギを補助加速
装置に供給して機械的エネルギを発生させる装置に利用
する。The present invention is applied to a hybrid vehicle having an internal combustion engine and an electric power unit. According to the present invention, mechanical energy generated by braking of an automobile whose main power is an internal combustion engine is converted into electrical energy and stored in a large power storage means (secondary battery or electrostatic capacity) to accelerate the internal combustion engine. Sometimes, the stored electrical energy is supplied to an auxiliary acceleration device and used for a device that generates mechanical energy.
【０００２】本発明は、国際公表公報ＷＯ８８／０６１
０７（国際出願番号ＰＣＴ／ＪＰ８８／００１５７）に
開示された自動車の電気制動および補助加速装置の改良
に関する。本発明は、ＨＩＭＲの名称で本願出願人が販
売している補助加速および補助制動装置を備えた自動車
に搭載するに適する装置である。[0002] The present invention relates to WO 88/061.
No. 07 (International Application No. PCT / JP88 / 00157), which relates to an improvement in the electric braking and auxiliary acceleration device for a motor vehicle. The present invention is a device suitable for mounting on a vehicle equipped with an auxiliary acceleration and auxiliary braking device sold by the present applicant under the name of HIMR.
【０００３】[0003]
【従来の技術】自動車の主動力源である内燃機関の回転
軸にかご形多相誘導機の回転軸を直結し、そのかご形多
相誘導機を電動機に設定することにより補助動力として
利用し、そのかご形多相誘導機を発電機に設定すること
により制動機として動作させる装置が知られている。す
なわち、かご形多相誘導機にその回転子の実回転速度を
越える回転速度の回転磁界を与えるとそのかご形多相誘
導機は電動機として動作し、実回転速度を下回る回転速
度の回転磁界を与えるとそのかご形多相誘導機は電動機
として動作する。そして、その自動車に大型の直流蓄電
池（または静電容量）を搭載し、かご形多相誘導機が電
動機として動作するときにはこの蓄電池からエネルギを
取り出して交流に変換してかご形多相誘導機に供給し、
発電機として動作するときにはかご形多相誘導機の出力
交流電力を整流して蓄電池に回生させるためのインバー
タ回路を備えている。このインバータ回路は、運転操
作、かご形多相誘導機の回転速度、その他情報を入力と
するプログラム制御回路により制御される。2. Description of the Related Art A rotary shaft of a cage-type polyphase induction machine is directly connected to a rotary shaft of an internal combustion engine, which is a main power source of an automobile, and the cage-type polyphase induction machine is used as auxiliary power by being set as an electric motor. A device is known in which the cage-type polyphase induction machine is set as a generator to operate as a brake. That is, when a rotating magnetic field having a rotation speed exceeding the actual rotation speed of the rotor is given to the cage-shaped polyphase induction machine, the cage-shaped polyphase induction machine operates as an electric motor and generates a rotating magnetic field having a rotation speed lower than the actual rotation speed. When given, the squirrel-cage polyphase induction machine operates as a motor. Then, a large DC storage battery (or capacitance) is mounted on the car, and when the cage type polyphase induction machine operates as a motor, energy is extracted from this storage battery and converted to AC to convert it into a cage type polyphase induction machine. Supply,
When operating as a generator, an inverter circuit is provided for rectifying the output AC power of the cage-type polyphase induction motor and regenerating it into a storage battery. The inverter circuit is controlled by a program control circuit that receives operation information, the rotational speed of the cage-type polyphase induction machine, and other information.
【０００４】本願出願人は、このような自動車をＨＩＭ
Ｒの名称で製造販売し、路線用定期バスの車両、環境保
全が優先される山岳道路を走行する自動車などで継続的
に試験を行っている。[0004] The applicant of the present application has proposed such an automobile as a HIM.
It is manufactured and sold under the name of R, and has been continuously tested on vehicles of regular buses for routes, automobiles running on mountain roads where environmental protection is prioritized, and the like.
【０００５】上記のような装置は、試験の結果多くの改
良が加えられて、かご形多相誘導機を発電機とするモー
ドは、回生モードおよび発電モードの二つのモードを備
えることになった。すなわち、回生モードは、自動車が
制動減速するときにかご形多相誘導機を発電機として運
動エネルギを電気エネルギに変換して蓄電池に回生充電
するモードである。発電モードは、蓄電池の蓄電量が不
足した状態のときに自動車の定常走行時あるいは自動車
が停車中であって内燃機関がアイドリング状態にあると
きに、かご形多相誘導機を発電機として蓄電池に強制的
に充電を行うモードである。[0005] As a result of tests, many improvements have been made to the above-mentioned apparatus, and the mode in which the cage-type polyphase induction machine is used as a generator has two modes, a regenerative mode and a power generation mode. . That is, the regenerative mode is a mode in which a squirrel-cage polyphase induction machine is used as a generator to convert kinetic energy into electric energy and recharge the storage battery when the vehicle is braked and decelerated. The power generation mode uses a squirrel-cage polyphase induction machine as a generator when the vehicle is running normally or when the vehicle is stopped and the internal combustion engine is idling when the storage amount of the storage battery is insufficient. In this mode, charging is performed forcibly.
【０００６】回生モードおよび補助加速モードが繰り返
し有効に利用されると、内燃機関の燃料消費量を小さく
することができて経済的な運転を行うことができる。し
かし、運転の状態によっては補助加速モードが多く使わ
れ回生モードが使われなくなると、蓄電池の蓄電量がし
だいに減ってしまうことになる。このために、蓄電池の
蓄電量がある限界を越えて少なくなると、これを回復す
るために操作によらずに自動的に発電モードを設定し
て、自動車の定常走行時あるいは停車アイドリング状態
にあるときに、かご形多相誘導機を発電機として動作さ
せて内燃機関の回転エネルギにより蓄電池を充電させて
いる。これは、燃料を消費することになるから、経済的
な運転には発電モードはできるだけ使われない方がよ
い。If the regenerative mode and the auxiliary acceleration mode are repeatedly and effectively used, the fuel consumption of the internal combustion engine can be reduced and economical operation can be performed. However, if the auxiliary acceleration mode is frequently used and the regenerative mode is not used depending on the driving state, the storage amount of the storage battery gradually decreases. For this reason, when the storage amount of the storage battery becomes smaller than a certain limit, the power generation mode is automatically set without operation in order to recover this, and when the vehicle is in a steady running or stopped idling state. Then, the storage battery is charged by the rotational energy of the internal combustion engine by operating the cage-type polyphase induction machine as a generator. Since this consumes fuel, it is better not to use the power generation mode as much as possible for economical operation.
【０００７】発電モードは補助加速モードおよび回生モ
ードが設定されていないときに設定される。しかも、発
電モードは蓄電池の蓄電量を監視していて、その蓄電量
が所定値を下回るときに設定される。蓄電池の蓄電量は
原則として蓄電池の端子電圧により推定される。さらに
詳しくは、蓄電池に相応の負荷が接続されたときに、例
えば補助加速モードのとき、あるいは蓄電池の電流出入
りがほとんどない状態のときに蓄電量を測定するために
短時間だけ一時的に抵抗器を接続して、その端子電圧を
計測して行うようになっている。The power generation mode is set when the auxiliary acceleration mode and the regeneration mode are not set. In addition, the power generation mode monitors the amount of power stored in the storage battery, and is set when the amount of stored power falls below a predetermined value. The storage amount of the storage battery is estimated based on the terminal voltage of the storage battery in principle. More specifically, when a corresponding load is connected to the storage battery, for example, in the auxiliary acceleration mode, or when there is almost no current flowing in or out of the storage battery, the resistor is temporarily temporarily measured only for a short time to measure the storage amount. Is connected to measure the terminal voltage.
【０００８】従来装置では、この蓄電量の所定値は一定
値が用いられていた。すなわち、車両が停止状態であっ
て内燃機関がアイドリング状態にあるときも、車両が走
行中であって内燃機関が高速回転しているときにも、こ
の発電モードを設定するための蓄電量の所定値は一定値
であった。In the conventional apparatus, a fixed value is used as the predetermined value of the charged amount. That is, even when the vehicle is stopped and the internal combustion engine is in an idling state, or when the vehicle is running and the internal combustion engine is rotating at a high speed, the predetermined amount of power storage for setting the power generation mode is determined. The values were constant.
【０００９】[0009]
【発明が解決しようとする課題】上述のように、発電モ
ードは蓄電池の蓄電量が所定値を下回って不足するとき
に、かご形多相誘導機を発電機に設定してこの蓄電池の
充電を行うモードであるから、発電モードでは内燃機関
が蓄電池を充電するために燃料を消費している。発電モ
ードで同じ発電電流を取り出すために、内燃機関がアイ
ドリング状態で低速回転しているときと、内燃機関が高
速回転しているときとでは、余分に消費する燃料に大き
い相違がある。車両が停車中で内燃機関がアイドリング
状態にあるときには、発電モードが設定されると燃料が
多く供給されてそのアイドリング回転速度が維持される
が、車両が走行中で内燃機関が高速回転しているときに
は、内燃機関の効率の良い領域での運転であって発電モ
ードが設定されても発電のために余分に供給される燃料
の量は小さい。As described above, in the power generation mode, when the amount of power stored in the storage battery falls below a predetermined value and becomes insufficient, the squirrel-cage polyphase induction machine is set as a generator to charge the storage battery. In this mode, the internal combustion engine consumes fuel to charge the storage battery in the power generation mode. In order to extract the same power generation current in the power generation mode, there is a large difference in the amount of fuel consumed when the internal combustion engine is rotating at a low speed in an idling state and when the internal combustion engine is rotating at a high speed. When the vehicle is stopped and the internal combustion engine is idling, when the power generation mode is set, a large amount of fuel is supplied and the idling rotational speed is maintained, but the internal combustion engine is rotating at high speed while the vehicle is running In some cases, even when the operation is performed in an efficient region of the internal combustion engine and the power generation mode is set, the amount of fuel that is additionally supplied for power generation is small.
【００１０】本発明はこのような事象に着目したもので
あって、発電モードによる内燃機関の燃料消費を経済化
して燃料消費効率のよい運転を行うことができる装置を
提供することを目的とする。The present invention focuses on such an event, and an object of the present invention is to provide an apparatus capable of economically operating the fuel consumption of an internal combustion engine in a power generation mode and performing efficient fuel consumption operation. .
【００１１】[0011]
【課題を解決するための手段】本発明は、主動力を内燃
機関とする自動車の制動により発生する機械的エネルギ
を電気的エネルギに変換して大型の蓄電手段に蓄積し、
内燃機関を加速するときに蓄電された電気エネルギを補
助加速装置に供給して機械的エネルギを発生させる装置
に関するものであって、内燃機関の回転軸に連結された
かご形多相誘導機と、蓄電手段と、前記かご形多相誘導
機の多相交流回路と前記蓄電手段の直流回路とを双方向
に電気エネルギを変換して結合するインバータ回路と、
このインバータ回路を制御する制御回路とを備え、この
制御回路は、そのかご形多相誘導機を電動機とする補助
加速モード、自動車の制動時にそのかご形多相誘導機を
発電機として前記蓄電手段に充電を行う回生モード、お
よび前記蓄電手段の蓄電量が所定値を下回るときそのか
ご形多相誘導機を発電機として内燃機関の駆動力により
前記蓄電手段に充電を行う発電モードを備えた自動車の
制動および補助動力装置において、前記制御回路は、前
記所定値が内燃機関の回転速度の関数として設定され、
その関数は内燃機関の回転速度が小さいときには蓄電量
の小さい値とし、内燃機関の回転速度が大きいときには
蓄電量の大きい値とすることを特徴とする。According to the present invention, mechanical energy generated by braking an automobile having an internal combustion engine as a main power is converted into electrical energy and stored in a large power storage means.
It relates to a device for generating mechanical energy by supplying electric energy stored when accelerating an internal combustion engine to an auxiliary accelerator, and a squirrel-cage polyphase induction machine connected to a rotating shaft of the internal combustion engine, Power storage means, an inverter circuit for bidirectionally converting and coupling electric energy between a polyphase AC circuit of the cage-type polyphase induction machine and a DC circuit of the power storage means,
A control circuit for controlling the inverter circuit, the control circuit comprising: an auxiliary acceleration mode in which the cage type polyphase induction motor is used as an electric motor; And a power generation mode for charging the storage means with the driving force of the internal combustion engine using the squirrel-cage polyphase induction machine as a generator when the amount of charge of the storage means falls below a predetermined value. In the braking and auxiliary power device of the above, the control circuit, the predetermined value is set as a function of the rotation speed of the internal combustion engine,
The function is characterized in that when the rotational speed of the internal combustion engine is low, the value of the charged amount is small, and when the rotational speed of the internal combustion engine is high, the value of the charged amount is large.
【００１２】蓄電量は、その蓄電手段に相応の負荷が接
続されたときの端子電圧により監視され、前記関数は内
燃機関の回転速度に対応する値を番地としその番地に蓄
電量に対応する値を保持することによりメモリに予め設
定され、前記制御回路は、内燃機関の回転速度にしたが
ってそのメモリの値を参照して発電モードを設定するこ
とが望ましい。The charge amount is monitored by a terminal voltage when a corresponding load is connected to the charge means, and the function has a value corresponding to the rotation speed of the internal combustion engine as an address, and a value corresponding to the charge amount is stored at the address. It is preferable that the control circuit sets the power generation mode by referring to the value of the memory according to the rotation speed of the internal combustion engine.
【００１３】[0013]
【作用】一般に内燃機関は、低速回転時には燃料消費量
に対する機械出力は小さく、高速回転時には燃料消費量
に対する機械出力が大きい。さらに詳しくは、ディーゼ
ル機関では、回転速度がほぼ１５００〜５０００ｒｐｍ
の範囲で消費する燃料に対して機械出力が大きく、燃料
の最大効率を得ることができるように設計されている。
したがって、発電モードを内燃機関の低速回転時に実行
するより高速回転時に実行することが有利であるから、
内燃機関の低速回転時には発電モードを設定しないこと
が有利であるが、内燃機関が長くアイドリング状態のま
まおかれると蓄電量がいちじるしく減少してしまうこと
があるから、ある限界ではアイドリング状態でも発電モ
ードを設定しなければならない。このため、発電モード
が設定される条件を内燃機関の回転速度の関数により変
更する。これは関数を数値化してあらかじめメモリに設
定しておき、制御回路はこのメモリの内容を参照しなが
ら、内燃機関の回転速度にしたがって発電モードを設定
する蓄電量を変更することにより実行される。In general, the internal combustion engine has a small mechanical output with respect to the fuel consumption at the time of low speed rotation, and has a large mechanical output with respect to the fuel consumption at the time of high speed rotation. More specifically, in a diesel engine, the rotational speed is approximately 1500 to 5000 rpm.
It is designed so that the mechanical output is large with respect to the fuel consumed in the range and the maximum efficiency of the fuel can be obtained.
Therefore, since it is advantageous to execute the power generation mode at a high speed rotation rather than at a low speed rotation of the internal combustion engine,
It is advantageous not to set the power generation mode when the internal combustion engine is running at low speeds. Must be set. Therefore, the condition for setting the power generation mode is changed by a function of the rotation speed of the internal combustion engine. This is performed by converting a function into a numerical value and setting it in a memory in advance, and changing the amount of stored power for setting the power generation mode according to the rotation speed of the internal combustion engine while referring to the contents of the memory.
【００１４】[0014]
【実施例】次に、本発明実施例を図面に基づいて説明す
る。図１は本発明実施例の構成を示すブロック図であ
る。Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the embodiment of the present invention.
【００１５】本発明実施例は、内燃機関１の回転軸に連
結されたかご形多相誘導機２と、蓄電手段３と、かご形
多相誘導機２の多相交流回路と蓄電手段３の直流回路と
を双方向に電気エネルギを変換して結合するインバータ
回路４と、このインバータ回路４を制御する制御回路５
とを備える。蓄積手段３としては、本実施例では二次電
池、さらに具体的には鉛蓄電池が使用される。The embodiment of the present invention relates to a cage type polyphase induction machine 2 connected to a rotating shaft of an internal combustion engine 1, a power storage means 3, and a polyphase AC circuit of the cage type polyphase induction machine 2 and a power storage means 3. An inverter circuit 4 for bidirectionally converting electric energy into a direct current circuit and coupling the same, and a control circuit 5 for controlling the inverter circuit 4
And In the present embodiment, a secondary battery, more specifically, a lead storage battery is used as the storage means 3.
【００１６】かご形多相誘導機２には回転センサ６が取
付けられていて、この回転センサ６からの信号は制御回
路５に与えられ、さらに蓄電手段３の充電状態に関する
情報が入力する。インバータ回路４の出力側にはコンデ
ンサ７および半導体スイッチ回路１２が接続され、この
半導体スイッチ回路１２を介して抵抗器１１が接続され
る。この抵抗器１１は自動車に大きい制動が行われ回生
することができないほどの過剰な電気エネルギが発生し
たときに、これを消散させるように構成されている。A rotation sensor 6 is attached to the squirrel-cage polyphase induction machine 2, and a signal from the rotation sensor 6 is given to a control circuit 5, and further, information regarding the state of charge of the power storage means 3 is input. The capacitor 7 and the semiconductor switch circuit 12 are connected to the output side of the inverter circuit 4, and the resistor 11 is connected via the semiconductor switch circuit 12. The resistor 11 is configured to dissipate excessive electric energy that cannot be regenerated due to a large braking applied to the vehicle.
【００１７】さらに、蓄電手段３および半導体スイッチ
回路１２にはインバータ回路４の出力電圧を検出する検
出回路１３が接続され、抵抗器１１には電流の変化を検
出する電流検出器１５が備えられる。この電流検出器１
５にはその検出信号にしたがって半導体スイッチ回路１
２を制御するスイッチ制御回路１４が接続される。この
スイッチ制御回路１４には検出回路１３が接続される。Further, a detection circuit 13 for detecting an output voltage of the inverter circuit 4 is connected to the electric storage means 3 and the semiconductor switch circuit 12, and a resistor 11 is provided with a current detector 15 for detecting a change in current. This current detector 1
5 includes a semiconductor switch circuit 1 according to the detection signal.
2 is connected. The detection circuit 13 is connected to the switch control circuit 14.
【００１８】制御回路５は、かご形多相誘導機２を電動
機とする補助加速モード、自動車の制動時にかご形多相
誘導機２を発電機として蓄電手段３に充電を行う回生モ
ード、および蓄電手段３の蓄電量が所定値を下回るとき
かご形多相誘導機２を発電機として内燃機関１の駆動力
により蓄電手段３に充電を行う発電モードを備える。さ
らに、本発明の特徴として、制御回路５には、前記所定
値が内燃機関１の回転速度の関数として設定され、その
関数は内燃機関１の回転速度が小さいときには蓄電量の
小さい値とし、内燃機関１の回転速度が大きいときには
蓄電量の大きい値とする。また、蓄電量は、蓄電手段３
に相応の負荷が接続されたときの端子電圧により監視さ
れ、前記関数は、内燃機関１の回転速度に対応する値を
番地としその番地に蓄電量に対応する値を保持すること
によりメモリに予め設定され、制御回路５は、内燃機関
１の回転速度にしたがってそのメモリの値を参照して発
電モードを設定する。The control circuit 5 includes an auxiliary acceleration mode in which the squirrel-cage polyphase induction motor 2 is used as an electric motor, a regeneration mode in which the squirrel-cage polyphase induction machine 2 is used as a generator to charge the electric storage means 3 during braking of the vehicle, and There is provided a power generation mode in which the storage means 3 is charged by the driving force of the internal combustion engine 1 using the squirrel-cage polyphase induction machine 2 as a generator when the charged amount of the means 3 falls below a predetermined value. Further, as a feature of the present invention, the predetermined value is set in the control circuit 5 as a function of the rotation speed of the internal combustion engine 1, and the function is set to a small value of the charged amount when the rotation speed of the internal combustion engine 1 is low. When the rotation speed of the engine 1 is high, the power storage amount is set to a large value. The amount of stored power is determined by the power storage means 3.
The function is monitored by a terminal voltage when a load corresponding to the load is connected, and the function previously stores in the memory a value corresponding to the rotation speed of the internal combustion engine 1 and holding a value corresponding to the charged amount at the address. The control circuit 5 sets the power generation mode with reference to the value of the memory according to the rotation speed of the internal combustion engine 1.
【００１９】次に、このように構成された本発明実施例
の動作について説明する。Next, the operation of the embodiment of the present invention thus configured will be described.
【００２０】通常動作では、補助加速モードのときに
は、制御回路５がインバータ回路４を制御してかご形多
相誘導機２にその回転子の実回転速度を越える回転速度
の回転磁界を与え、かご形多相誘導機２を電動機として
動作させ、内燃機関１に補助動力を与える。回生モード
では、自動車が制動減速するときにかご形多相誘導機２
を発電機として運動エネルギを電気エネルギに変換して
蓄電手段３に回生充電を行う。また、発電モードでは、
蓄電手段３の蓄電量が不足した状態にあり自動車の定常
走行時、あるいは自動車が停車中であって内燃機関１が
アイドリング状態にあるときに、かご形多相誘導機２を
発電機として蓄電手段３に強制的に充電を行う。蓄電量
が不足したことは蓄電手段３に負荷が接続された状態に
おける蓄電手段３の端子電圧により判定する。In the normal operation, in the auxiliary acceleration mode, the control circuit 5 controls the inverter circuit 4 to apply a rotating magnetic field having a rotational speed exceeding the actual rotational speed of the rotor to the cage type multi-phase induction machine 2, The multi-phase induction motor 2 is operated as an electric motor to provide auxiliary power to the internal combustion engine 1. In the regenerative mode, the cage-shaped polyphase induction motor 2
Is used as a generator to convert kinetic energy into electric energy and perform regenerative charging of the electric storage means 3. In the power generation mode,
When the amount of power stored in the power storage means 3 is insufficient and the vehicle is running steadily, or when the vehicle is stopped and the internal combustion engine 1 is idling, the squirrel-cage polyphase induction machine 2 is used as a generator to generate power. 3 is forcibly charged. The shortage of the charged amount is determined based on the terminal voltage of the power storage unit 3 in a state where the load is connected to the power storage unit 3.
【００２１】このように通常動作における発電モードで
は、蓄電手段３の蓄電量が所定値を下回って不足すると
きに、かご形多相誘導機２を発電機として蓄電手段３に
対して充電が行われるので、内燃機関１はそのための燃
料を消費する。As described above, in the power generation mode in the normal operation, when the amount of power stored in the power storage means 3 falls short of a predetermined value and runs short, charging is performed on the power storage means 3 using the cage-type polyphase induction machine 2 as a generator. Therefore, the internal combustion engine 1 consumes fuel for that purpose.
【００２２】本発明は、このような燃料消費を効率的に
行おうとするもので、内燃機関１がアイドリング状態に
あるような低速回転時には、蓄電量がいちじるしく減少
して限界に達しているときを除きなるべく発電モードを
設定しないようにして、燃料消費量の少ない高速回転時
に発電モードを設定しようとするものである。The present invention is intended to efficiently perform such fuel consumption. When the internal combustion engine 1 is running at a low speed such as in an idling state, the amount of stored power is significantly reduced and reaches a limit. In other words, the power generation mode is not set as much as possible, and the power generation mode is set at the time of high-speed rotation with low fuel consumption.
【００２３】そのために、蓄電手段３に充電が必要であ
るか否かを判定するための所定値を内燃機関１の回転速
度の関数とし、その関数は内燃機関１の回転速度が小さ
いときには蓄電量の小さい値とし、内燃機関１の回転速
度が大きいときには蓄電量の大きい値とする。これによ
り、燃料消費効率のよい高速回転時に発電が行われて、
発電のために消費される燃料が経済的になる。For this purpose, a predetermined value for determining whether or not the storage means 3 needs to be charged is defined as a function of the rotation speed of the internal combustion engine 1, and the function is used when the rotation speed of the internal combustion engine 1 is low. Is small, and when the rotation speed of the internal combustion engine 1 is high, the value of the power storage amount is large. As a result, power is generated during high-speed rotation with good fuel consumption efficiency,
Fuel consumed for power generation becomes economical.
【００２４】図２は本発明実施例における内燃機関の回
転速度と発電モード設定電圧との前記関数の一例を示す
図である。FIG. 2 is a diagram showing an example of the function of the rotation speed of the internal combustion engine and the power generation mode setting voltage in the embodiment of the present invention.
【００２５】一般にディーゼル機関では、回転速度がほ
ぼ１５００（ｒｐｍ）〜５０００（ｒｐｍ）の範囲で消
費する燃料に対して機械出力が大きく、したがって発電
モードを内燃機関１の低速回転時に実行するよりもこの
ような高速回転時に実行することが有利である。In general, in a diesel engine, a mechanical output is large with respect to fuel consumed at a rotational speed of approximately 1500 (rpm) to 5000 (rpm). It is advantageous to carry out such a high-speed rotation.
【００２６】そこで、蓄電手段３の蓄電量を判定するた
めの所定値である発電モード設定電圧Ｄ（Ｖ）を内燃機
関１の回転速度ω（ｒｐｍ）に応じて関数Ｆ（ω）とし
て設定し、回転速度が１０００（ｒｐｍ）のときには発
電モード設定電圧をＤａ（Ｖ）にし、１５００（ｒｐ
ｍ）を越えたときには発電モード設定電圧を最も高いＤ
ｂ（Ｖ）に設定し、回転速度１０００（ｒｐｍ）〜１５
００（ｒｐｍ）の間では比例的にその設定電圧を高め
る。Therefore, a power generation mode setting voltage D (V), which is a predetermined value for determining the amount of power stored in the power storage means 3, is set as a function F (ω) according to the rotation speed ω (rpm) of the internal combustion engine 1. When the rotation speed is 1000 (rpm), the power generation mode setting voltage is set to Da (V) and 1500 (rpm).
m), the power generation mode setting voltage is set to the highest D
b (V), and the rotation speed is 1000 (rpm) to 15
During 00 (rpm), the set voltage is increased proportionally.
【００２７】このようにして設定された関数Ｆ（ω）の
内燃機関１の回転速度に対応する値を番地とし、その番
地に蓄電量に対応する値を保持することによりメモリに
あらかじめ保持しておく。制御回路５が内燃機関１の回
転速度ωにしたがってそのメモリの値を参照して下回っ
ているときに発電モードを設定する。The value corresponding to the rotation speed of the internal combustion engine 1 of the function F (ω) set as described above is set as an address, and the value corresponding to the amount of stored power is stored in the address, thereby preliminarily storing the value in the memory. deep. The power generation mode is set when the control circuit 5 refers to the value in the memory and falls below the value according to the rotation speed ω of the internal combustion engine 1.
【００２８】図３は本発明実施例における発電モードの
設定および発電停止の状態を説明する図である。FIG. 3 is a diagram for explaining the setting of the power generation mode and the state of stopping the power generation in the embodiment of the present invention.
【００２９】この例では、内燃機関１の回転速度ωが１
０００（ｒｐｍ）のときに蓄電手段３の電圧が発電モー
ド設定電圧Ｄａを下回ったために、制御回路５が発電モ
ードを設定しかご形多相誘導機２が発電機として動作し
発電を開始する。この発電により蓄電手段３に充電が行
われ、所定時間経過すると蓄電手段３の充電電流Ｉが少
なくなり発電停止電流ＩS を示したときに、制御回路５
は発電モードを解除して充電を停止する。In this example, the rotational speed ω of the internal combustion engine 1 is 1
At 000 (rpm), the voltage of the power storage means 3 falls below the power generation mode setting voltage Da, so that the control circuit 5 sets the power generation mode and the squirrel-cage polyphase induction machine 2 operates as a generator to start power generation. The power storage means 3 is charged by this power generation. When the charging current I of the power storage means 3 decreases after a lapse of a predetermined time and the power generation stop current I S is indicated, the control circuit 5
Releases the power generation mode and stops charging.
【００３０】その後内燃機関１の回転速度ωが上昇して
１５００（ｒｐｍ）を越えたところで蓄電手段３の蓄電
量が低下し、その端子電圧が発電モード設定電圧Ｄｂを
下回ったために、制御回路５は再度発電モードを設定
し、かご形多相誘導機２を発電機として充電を開始す
る。このときの電圧モード設定電圧Ｄｂは、内燃機関１
の回転速度が１０００（ｒｐｍ）時の発電モード設定電
圧Ｄａよりも高い値にあるが、これは、発電モードを設
定するか否かの基準値となる所定値が内燃機関１の回転
速度に対応して定められているため変動したもので、こ
の発電モード設定電圧Ｄｂに基づいて発電モードが設定
されたことにより燃料の消費が経済的に行われる。Thereafter, when the rotation speed ω of the internal combustion engine 1 rises and exceeds 1500 (rpm), the amount of power stored in the power storage means 3 decreases and the terminal voltage falls below the power generation mode setting voltage Db. Sets the power generation mode again, and starts charging using the cage-shaped polyphase induction machine 2 as a generator. The voltage mode setting voltage Db at this time is
Is higher than the power generation mode setting voltage Da when the power generation mode is 1000 (rpm). This is because a predetermined value serving as a reference value for setting the power generation mode corresponds to the rotation speed of the internal combustion engine 1. Since the power generation mode is set based on the power generation mode setting voltage Db, fuel consumption is economically performed by setting the power generation mode.
【００３１】なお、蓄電手段３の蓄電量は、蓄電手段３
に相応の負荷が接続されたとき端子電圧を制御回路５が
取り込むことにより常時監視される。The amount of power stored in the power storage means 3 is
When a corresponding load is connected, the terminal voltage is constantly monitored by the control circuit 5 taking in the terminal voltage.
【００３２】[0032]
【発明の効果】以上説明したように本発明によれば、蓄
電手段の蓄電量を判定する所定値を内燃機関の回転速度
の関数として設定し、その値を回転速度が小さいときに
は小さくし、回転速度が大きいときには大きくすること
により、発電モードにおける内燃機関の燃料消費を経済
化することができ、燃料消費効率のよい運転を行うこと
ができる効果がある。As described above, according to the present invention, a predetermined value for judging the amount of electric power stored in the electric storage means is set as a function of the rotational speed of the internal combustion engine, and the value is reduced when the rotational speed is low. By increasing the speed when the speed is high, fuel consumption of the internal combustion engine in the power generation mode can be made economical, and there is an effect that operation with high fuel consumption efficiency can be performed.
【図１】本発明実施例の構成を示すブロック図。FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.
【図２】本発明実施例における内燃機関の回転速度と発
電モード設定電圧との関数の一例を示す図。FIG. 2 is a diagram illustrating an example of a function of a rotation speed of an internal combustion engine and a power generation mode setting voltage according to the embodiment of the present invention.
【図３】本発明実施例における発電モード設定および発
電停止の状態を説明する図。FIG. 3 is a diagram illustrating a power generation mode setting and a power generation stop state in the embodiment of the present invention.
１ 内燃機関 ２ かご形多相誘導機 ３ 蓄電手段 ４ インバータ回路 ５ 制御回路 ６ 回転センサ ７ コンデンサ １１ 抵抗器 １２ 半導体スイッチ回路 １３ 検出回路 １４ スイッチ制御回路 １５ 電流検出器 DESCRIPTION OF SYMBOLS 1 Internal combustion engine 2 Cage-shaped polyphase induction machine 3 Electric storage means 4 Inverter circuit 5 Control circuit 6 Rotation sensor 7 Capacitor 11 Resistor 12 Semiconductor switch circuit 13 Detection circuit 14 Switch control circuit 15 Current detector
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B60L 11/02 - 11/14 B60K 9/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) B60L 11/02-11/14 B60K 9/00
Claims (3)
この内燃機関の回転軸にその回転軸が機械的に連結され
た多相誘導機と、直流電流により充電され直流電流を放
電する蓄電手段と、前記多相誘導機の多相交流回路と前
記蓄電手段の直流回路とを双方向にその電気エネルギを
変換して結合するインバータ回路と、このインバータ回
路を制御する制御回路とを備え、 この制御回路は、前記多相誘導機を電動機とする補助加
速モード、自動車の制動時にその多相誘導機を発電機と
して前記蓄電手段に充電を行う回生モード、および前記
蓄電手段の蓄電量が所定値を下回るときその多相誘導機
を発電機として内燃機関の駆動力により前記蓄電手段に
充電を行う発電モードのいずれかを採る制御手段を備え
た自動車の制動および補助動力装置において、前記内燃機関の燃料効率が悪い回転速度の小さい領域で
は前記所定値として小さい値を設定し、前記内燃機関の
燃料効率が良い回転速度の大きい領域では前記所定値と
して大きい値を設定するように、前記所定値が前記内燃
機関の回転速度の関数として前記制御回路に設定された
ことを特徴とする自動車の制動および補助動力装置。 An internal combustion engine that mechanically drives wheels to rotate.
The rotating shaft of the internal combustion engine is mechanically connected to the rotating shaft.
And a DC current charged by DC current
A storage circuit for supplying electricity, an inverter circuit for bidirectionally converting and coupling a polyphase AC circuit of the polyphase induction machine and a DC circuit of the storage device with its electric energy, and a control circuit for controlling the inverter circuit. comprising a control circuit, an auxiliary acceleration mode to the motor of the polyphase induction machine, a regenerative mode for charging the storage means as a generator multiphase induction machine of that during braking of the vehicle, and said storage means charged amount is vehicle braking and auxiliary power unit having a control means to take any of the power generation mode for charging the storage means by the driving force of the internal combustion engine as a generator multiphase induction machine foundation falls below a predetermined value In the region where the fuel efficiency of the internal combustion engine is poor and the rotational speed is small
Sets a small value as the predetermined value,
In the region where the fuel efficiency is good and the rotation speed is large,
The predetermined value is set to the internal combustion engine so that a large value is set.
A vehicle braking and auxiliary power system set in the control circuit as a function of engine speed .
続されたときの端子電圧により監視される請求項１記載
の自動車の制動および補助動力装置。2. A vehicle braking and auxiliary power system according to claim 1, wherein the amount of stored power is monitored by a terminal voltage when a corresponding load is connected to the storage means.
る値を番地としその番地に蓄電量に対応する値を保持す
ることによりメモリに予め設定され、前記制御回路は、
内燃機関の回転速度にしたがってそのメモリの値を参照
して発電モードを設定する手段を含む請求項１記載の自
動車の制動および補助動力装置。3. The function is preset in a memory by setting a value corresponding to the rotation speed of the internal combustion engine as an address and holding a value corresponding to the charged amount at the address.
2. A vehicle braking and auxiliary power system according to claim 1 , further comprising means for setting a power generation mode by referring to a value in a memory according to a rotation speed of the internal combustion engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5263862A JP3055749B2 (en) | 1993-10-21 | 1993-10-21 | Automotive braking and auxiliary power units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5263862A JP3055749B2 (en) | 1993-10-21 | 1993-10-21 | Automotive braking and auxiliary power units |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07123518A JPH07123518A (en) | 1995-05-12 |
| JP3055749B2 true JP3055749B2 (en) | 2000-06-26 |
Family
ID=17395279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5263862A Expired - Fee Related JP3055749B2 (en) | 1993-10-21 | 1993-10-21 | Automotive braking and auxiliary power units |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3055749B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0743216B1 (en) * | 1995-05-19 | 2001-08-29 | Toyota Jidosha Kabushiki Kaisha | Hybrid vehicle power transmitting apparatus and method of controlling the same during starting |
| KR101199154B1 (en) | 2010-07-29 | 2012-11-12 | 기아자동차주식회사 | Change speed control system of hybrid vehicle with automatic transmission and control method thereof |
| US20200079514A1 (en) * | 2018-09-06 | 2020-03-12 | Pratt & Whitney Canada Corp. | Hybrid electric aircraft propulsion system and method |
-
1993
- 1993-10-21 JP JP5263862A patent/JP3055749B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07123518A (en) | 1995-05-12 |
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