JP3811373B2 - 可変電流制限制御装置および車輌電気駆動システム - Google Patents
可変電流制限制御装置および車輌電気駆動システム Download PDFInfo
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- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
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- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Hybrid Electric Vehicles (AREA)
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Description
【発明の属する技術分野】
本発明は、車輛用電気駆動システムに関する。
【0002】
【従来の技術】
変速数が限られており、構成要素の設計及び製造に費用がかかり、車輛形体のオプションが限られているといった、機械式トランスミッションシステムの不都合を或る程度解消するため、車輛電気駆動システム即ちAC電気トラクション駆動装置が提案されてきた。このような電気駆動システムは、1996年10月22日にグレイヤー等に賦与された米国特許第5,568,023号に示されているように、代表的には、DCバスに接続されたインバータ/整流器に接続されたエンジン駆動式3相電動モータ/発電機を含む。バスはインバータ/整流器に供給し、このインバータ/整流器は、アクスル又は車輪を駆動するトラクションモータ/発電機に電力を供給する。インバータ/整流器は、バスのDC電流を、オペレータに指示された速度で車輪を駆動する周波数の3相AC電流に変換する。駆動輪を通してトラクターに供給された、トラクターを必要以上の速度で移動する傾向がある外部動力源は、モータを発電機として作動し、動力変換の全ての順序が逆になり、エンジン内に戻る機械的動力を再生する。この再生作用により、エンジンは、外部から加えられた負荷から、現在の機械式トランスミッションと同様の方法で、動力を吸収する。
【0003】
代表的には、トラクションモータ/発電機の速度は、モータを駆動する電流の周波数を制御することによって制御される。速度制御装置が係合したとき、駆動装置は全力又はトルクの作用と係合する。機械式トランスミッションを備えた従来のトラクターのオペレータは、クラッチペダルを押して車輛を駆動するトルクを解放するか或いは減少することができる。このような機械式クラッチをゆっくりと係合し又は係合解除することによって、オペレータは、車輛を移動するためにエンジンにより加えられたトルクを制御できる。従って、クラッチの係合を調整することにより、オペレータは、車輪が及ぼすことができる駆動力又はトルクを制御することによって車輛の移動を制御する。同様のクラッチ型制御装置を電動システムに設けることが望ましい。
【0004】
【発明が解決しようとする課題】
従って、本発明の目的は、従来の機械式駆動車輛のクラッチ制御装置と同様の方法で作動する制御装置を持つ車輛電気駆動システムを提供することである。
【0005】
【課題を解決するための手段】
これらの及び他の目的は、車輛電気駆動システムが、エンジン駆動式電動モータ/発電機、このモータ/発電機に接続された第1インバータ/整流器、この第1インバータ/整流器に接続されたバス、このバスに接続された第2インバータ/整流器、及びこの第2インバータ/整流器の出力に接続されたトラクションモータ/発電機を含む、本発明によって達成される。電子式制御装置は、オペレータ速度制御部材に応じてインバータ/整流器の作動を制御する。更に、オペレータ制御式足踏みペダルが、この足踏みペダルの位置を表す制限コマンド信号を発生するトランスジューサに連結されている。電子式制御ユニットは、制限コマンド信号を受け取り、第2インバータ/整流器がトラクションモータ/発電機に供給する電流を制限電流に制限する。この電流は、制限コマンド信号及びモータ速度の関数である。
【0006】
【発明の実施の形態】
図1を参照すると、車輛用電気駆動システム10は、電子式エンジン制御ユニット(ECU)13によって制御される内燃エンジン12を含む。このエンジン12は、三相電動モータ/発電機14を駆動する。この電動モータ/発電機14は、高圧DCバス18に接続された双方向性インバータ/整流器16に電力を供給し、又はこれから電力を受け取る。バス18は、電力を双方向性インバータ/整流器20及び22に電力を供給し、又はこれから電力を受け取る。インバータ/整流器20は、前輪26を駆動するか或いはこれらの前輪から動力を受け取るトラクションモータ/発電機24に接続されている。インバータ/整流器22は、アクスル32及び減速器34を介して後輪30を駆動するか或いはこれらの後輪から動力を受け取るトラクションモータ/発電機28に接続されている。減速器34は、高/低レンジセレクターレバー37によって制御される高/低レンジボックス35を含む。各インバータ/整流器16、20、及び22は、対応するマイクロ制御装置17、21、及び23の夫々によって制御される。自動車及びバス用の駆動装置で通常使用されるバッテリーが駆動列に含まれない。
【0007】
モータ24及び28は、好ましくはDCブラシレス永久磁石モータである。好ましくは、後モータ28は、機械シフト式2速ギヤボックスを通して後アクスルを駆動する。変速段が2段であるため、モータの作動効率が向上する。これは、高速ギヤは、輸送速度に必要な速度をアクスルに提供し、低速ギヤが低速での強力な引っ張りに必要なトルクをアクスルに提供するためである。
【0008】
電子式車輛制御ユニットVCU40には、オペレータ制御アッセンブリ36、ECU13、様々なセンサ(図示せず)、及びマイクロ制御装置21及び23が接続されている。図2で最もよくわかるように、制御アッセンブリ36は、案内スロット64内で移動自在の速度制御レバー62(又はパドル等)を含む。案内スロット64は、前進ブランチ66、後退ブランチ68、パーキングブランチ70、ニュートラル位置72、及びゼロ速度保持位置74を備えている。制御アッセンブリ36は、レバー62に作動的に連結された従来のトランスジューサ76を更に含む。このトランスジューサは、レバー位置信号を発生し、この信号がVCU40に伝えられる。制御アッセンブリは、ジョン・ディーア7000シリーズ(登録商標)のトラクターで使用されているシフト四分円と同様であるのがよい。更に、制御アッセンブリ36は、好ましくは、レバー62に作動的に連結されたトルク保持スイッチ78を含む。このスイッチは、レバー62がニュートラル位置又はパーキング位置にある場合にトルク保持信号を発生する。
【0009】
図1を再び参照すると、ロータ位置センサ44、46、及び48が各モータ/発電機14、24、及び28に接続されており、回転位置信号を対応するマイクロ制御装置21、23、及び42に供給する。これらの制御装置は、前記センサから速度信号を受け取る。インバータ/整流器20、22は、DCバス電流を、オペレータが速度制御レバー62を介して指令した速度で車輪を駆動する周波数の3相AC電流に変換する。ロータ位置センサ46、48及びマイクロ制御装置21、23は、電気駆動モータ24及び28の各々について、閉じた速度制御ループを形成し、マイクロ制御装置21、23は、レバー62からの指令速度とセンサ46、48から得られた実際の速度との間の差から速度エラーを計算し、速度エラーの関数として電流をモータに加える。
【0010】
本発明によれば、追加のオペレータ制御装置、好ましくは足踏み式ペダル50がトランスジューサ52、例えばポテンショメータに連結されている。このトランスジューサは、ペダル50の位置を表すトランスジューサ信号(即ち制限コマンド信号)を発生する。ばね54がペダル50を持ち上げ位置に押圧する。3位置前輪駆動FWDスイッチ56及び左右のブレーキスイッチ58及び60もまたVCU40に接続されている。ブレーキスイッチは、好ましくは、左右のブレーキペダル(図示せず)に作動的に連結されている。VCU40は、スイッチ56、58、及び60、速度制御レバー62、及びクラッチペダルトランスジューサ52から信号を受け取る。VCU40は、更に、高/低レンジボックス35の状態を表す信号をVCU40に提供するレンジボックスセンサスイッチ61から信号を受け取る。VCU40は、図3に簡単な形態で示すアルゴリズムを実行し、値が0%乃至100%の範囲で変化できるトルク制限信号を発生する。インバータ/整流器20、22、及びこれらと関連したマイクロ制御装置21、23は、トルク制限信号に応じて協働し、トラクションモータ/発電機24、28に供給される電流を制限し、そのトルクをこれに従って制限する。
【0011】
次に図3を参照すると、アルゴリズムは、マイクロ制御装置21、23に加えられる車輛速度コマンド値を発生する主アルゴリズムループ(図示せず)を呼び出したときに工程100で開始する。工程102は、様々なセンサ及びオペレータ入力を走査し、アナログ信号をデジタル信号に変換する。工程104は、工程102からの値を工学単位に変換する。工程106は、トランスジューサ52からの信号を計量し且つ相殺を加え、クラッチコマンドを形成する。クラッチコマンド信号の範囲は、ペダル50の移動範囲の上部分と対応する。好ましくは、100%クラッチコマンド信号は、ペダル50がその一杯に持ち上げられた位置の僅かに下にある所定位置と対応し、ゼロクラッチコマンド信号は、ペダル50を約75%踏み込んだ場合、あるいは一杯に押し込んだ制限制御部材位置以下と対応する。工程108は、車輛モード及び速度制御レバー62の位置に基づいて車輛速度コマンド信号(Veh spd cmd)を計算する。
【0012】
工程110は、入力コマンドの一貫性を検査し、安全性検査を行う。不合格の場合には、工程110は、アルゴリズムを工程112に差し向ける。工程112は、車輛速度コマンド値をゼロに設定し、トルク制限値をゼロに設定する。工程110はその外の場合にはアルゴリズムを工程114に差し向ける。
【0013】
工程114は、車輛速度コマンド値の変化率を制限する。
工程116は、所望の速度に達する上で必要とされる後モータ速度を、車輛速度コマンド値Veh spd cmdに基づいて、及び後ギヤ比に基づいて、以下のC言語コンピューターステートメントに従って計算する。
RRGrat=Hi Gear Ratio;
if(Lo Rng)
RRGrat=Lo Gear Ratio;
Rmot Spd Cmd=RRGrat*veh spd cmd;
Veh spd cmdは、オペレータ入力から計算され、実際の車輛速度によって制限された車輛速度コマンドである。有効後ギヤボックス/タイヤ比の値の関数である場合には、RRGratはレンジボックスセンサ61から決定される。Lo Rngは、セレクター37がその低速範囲位置にある場合に真である。Hi Gear Ratioは、レンジボックス35の高速範囲における後輪の速度の車輛速度に対する比である。後輪の転動半径並びに実際のギヤ減速の効果を含む。Lo Gear Ratioは、低速範囲での後輪速度の車輛速度に対する比である。最後に、後モータ速度コマンド即ちRmot Spd Cmdは、ギヤ比即ちRRGrat×veh spd cmdの関数として計算される。
【0014】
工程118は、後モータトルク限度値を、クラッチコマンド信号の位置及び速度制御レバー62の位置の関数として、以下のC言語コンピューターステートメントに従って計算する。
Rmot Torq Lim=Torq Lim;
if((Trq Hld==FALSE))
Rmot Torq Lim=0.0;
後アクスルトルクレベル(Rear Axle Torque Level)は、オペレータのクラッチペダルの位置に基づいて速度を制御するために使用される利用可能なトルクの所望のパーセンテージであるTorq Limと等しく設定される。結果的に得られたRmot Torq Limを後モータ制御装置に通す。これは、指令された後モータ速度を維持しようとする試みにおいて制御装置が加えることができる利用可能なトルクの最大パーセンテージである。負荷トルクがこのレベル以下である場合には、指令されたモータ(車輪)速度が維持される。負荷トルクはこのレベル以上である場合には、モータ(車輪)速度が低下する。
【0015】
Torq Hld==FALSEステートメントは、速度制御レバー62のニュートラル位置72について検査を行う。Trq Hldは、操作レバー62がゼロ速度位置74にない場合には常に真である。レバー62がゼロ速度位置にある場合には、オペレータは、Trq Hldスイッチ78の係合及び係合解除を行うことにより、Trq Hldを、モータ制御装置17がトルクを(最大でTorq Limまで)加えて指令速度(ゼロ)を維持する真にするか或いは、クラッチペダル50の位置に拘わらず、空転(ニュートラル)又はゼロモータトルクを指令する偽にする。
【0016】
工程120は、所望の速度に達する上で必要な前モータ速度コマンド値即ちFmot Spd Cmdを車輛速度コマンド値に基づいて、及び前ギヤ比に基づいて、以下のC言語コンピューターステートメントに従って計算する。
Fmot Spd Cmd=veh spd cmd*FRGrat*Bst;ここで、FRGratは、前輪の速度と後輪の速度との間の比である(後タイヤ転動半径の効果並びに実際のギヤ減速の効果を含む)。Bstは、負荷が適切に分配された状態を維持するための、前輪の後輪速度に対する有効ブースト比である。かくして、前モータ速度コマンドは、車輛速度コマンド、有効ギヤ比、及びブーストファクタの積である。
【0017】
両ブレーキペダルを同時に踏み込むことによって、この速度コマンドは、工程122と関連して以下に説明するように変化する。
工程122は、前モータトルク限度値を、ペダル50の位置及び速度制御レバー62の位置の関数として、以下のC言語コンピューターステートメントに従って計算する。
ステートメント(1)では、前モータトルク限度は、クラッチペダル50の位置に基づいて設定され、ここでは、Torq Limは、クラッチペダル50の位置に基づいた速度制御に使用される利用可能なトルクの所望のパーセンテージである。結果的に得られたFmot Torq Limを前モータ制御装置21に通す。これは、指令された前モータ速度を維持する試みにおいて制御装置が加えることができる利用可能なトルクの最大パーセンテージである。負荷トルクがこのレベル以下である場合には、指令されたモータ(車輪)速度が維持される。負荷トルクがこのレベル以上である場合には、モータ(車輪)速度が低下する。
【0018】
ステートメント2及び3において、Trq Hld値はスイッチ78の状態を表す。これは、操作レバー62がゼロ速度位置74にない場合には常に真である。制御レバー62がゼロ速度位置74にある場合には、オペレータは、Trq Hldスイッチ78の係合又は係合解除を行い、Trq Hldを、モータ制御装置がトルク(最大Torq Limまで)を加えて指令速度(ゼロ)を維持する真にするか或いは、クラッチペダル50の位置に拘わらず、空転(ニュートラル)トルク又はゼロモータトルクを指令する偽にする。
【0019】
ステートメント4及び5に関し、3位置スイッチ56は前輪駆動装置の係合を制御する。スイッチ56の三つの位置は、MFWD Onを真又は偽に設定し、又は第3オートマチックモードに設定する。オートマチックモードでは、前輪駆動装置は、Auto maxf(前進している場合)の速度以下で係合し(Fmot Torq Lim=Torq Lim)、前記速度以上で係合解除する(Fmot Torq Lim=0)。後退モード及びオートマチックモードでは、前輪駆動装置がAuto maxr以下の速度で係合し(Fmot Torq Lim=Torq Lim)、前記速度以上で係合解除する(Fmot Torq Lim=0)。
【0020】
ステートメント6乃至12は、MFWD Auto特徴を実行する。
ステートメント13乃至17を作動することにより、前モータ制御装置21は、前モータ24のトルクを、前モータ速度コマンドが3000rpmを越えている場合にはいつでも、クラッチペダル50によって低いトルクが指令されるまで、最大値の10%の最小値に維持する。
【0021】
ステートメント18乃至21は、ブレーキペダルオーバーライド機能を提供する。ブレーキ58、60を掛けたとき(Rt Brk=真、及びLt Brk=真)に前輪制動トルクを提供するため、ステートメント18乃至21は、前輪モータへの全ての他の速度コマンド及びトルクコマンドをオーバーライドする。両ブレーキが掛けられたときにはいつでも、最大でBrk Torkの大きさまでのトルクの遅延が加えられ、車輛を(車輛の方向に拘わらず)減速する。
【0022】
工程124は、FWDスイッチ56がOFFにある場合、又はFWDスイッチ56がそのAUTO位置にある場合には、前モータトルク限度値をゼロに変更し、前モータ速度は所定の限度速度を越える。
【0023】
工程126は、左右のブレーキスイッチ58及び60の両方を掛けた場合に前モータ速度をゼロに設定し、前モータトルク限度値を現在のモータ速度での利用可能な最大トルクの所定のパーセンテージに設定する。
【0024】
工程128でこのサブルーチンから出る。
かくして、ペダル50が一杯に上昇した位置は、100%電流限度、即ちモータ24又は28がその現在の作動速度で及ぼすことができるトルクの100%を表す。ペダル50を踏み込んでポテンショメータ52を回転し、VCU40に供給されるクラッチ指令信号を変化させる。オペレータは、速度制御レバー62を通して車輛速度コマンドを入力し、このコマンドをVCUが工程116及び120で後電動モータ28用の後モータ速度コマンド及び前電動モータ24用の前モータ速度コマンドに変換する。これらの電動モータ24及び28の各々は、ロータ位置センサ46、48、及びマイクロ制御装置21、23を含む閉じた速度制御ループ内にある。この制御ループでは、マイクロ制御装置21、23はモータトルクコマンド値を発生する。この値は、工程116及び120でレバー62から計算された指令された速度とセンサ46、48から得られた実際の速度との間の差である速度エラーの関数である。各モータ24、28が発生したトルクは、モータ電流の関数である。好ましくは、モータ及び制御装置を保護するため、電流もまた、マイクロ制御装置21、23によって電子的に制限される。更に、本発明によれば、モータ電流及びトルクは、更に、ペダル50の位置の関数として制限され又は変化される。ばね54は足踏みペダルを上限位置に付勢する。VCU40により、第2インバータ/整流器22はトラクションモータ/発電機24、26に最大量の電流を供給するが、この電流は、足踏みペダル50がその上限位置にある場合に速度制御装置36によって指令された速度に達するのに必要とされる電流以下である。
【0025】
ペダル50を踏み込むと、VCU40は、ポテンショメータ52からの変化するクラッチコマンド信号に対し、モータ24、28に供給される電流をマイクロ制御装置21、23で減少することによって応答し、これによって、モータのトルクを、ペダル50のほぼ一杯に踏み込んだ位置でトルクがゼロに達するまで、制限する。オペレータの視点から見ると、このシステムは、機械式摺動クラッチと同様に作動し且つ反応するが、摩耗する摺動面は存在せず、制御が容易に行われる。システムは、低いトルクレベルで、構成要素を損傷することなく、作動できる。本システムにより、オペレータは、建物の近くで作動する場合や器具を持ち上げるといった場合に、車輛をゆっくりと及び僅かな力で移動できる。本システムにより、オペレータは駆動装置をゆっくりと且つ滑らかに係合でき、及ぼされる力を正確に制御できる。エンジンが本質的にアイドル状態にあるときに低速で又は速度ゼロで、駆動アクスルに全トルクを及ぼすことができる。オペレータは、クラッチ/インチングペダルにより、アクスルトルクを完全に制御し、そのため、駆動ライントルクレベルに対するオペレータのキューの一つ即ちエンジンノイズをほとんど感じない場合でも、所望レベルの駆動ライントルクを維持できる。これにより、例えば、取り付けられた器具に対してヒッチアップした場合の車輛の制御を容易にする。
【0026】
このシステムにより、エンジンの動力は、エンジン速度とは独立して、機械的に簡単な設計により、及び無限に変化できる速度比で、牽引駆動装置に伝達される。
【0027】
本発明を特定の実施例と関連して説明したが、多くの変形及び変更は、以上の説明に照らして、当業者には明らかであるということは理解されよう。従って、本発明は、添付の特許請求の範囲の精神及び範疇の全てのこのような変形及び変更を含もうとするものである。
【図面の簡単な説明】
【図1】本発明による車輛電気駆動システムの概略図である。
【図2】本発明で使用するためのオペレータ制御アッセンブリの概略図である。
【図3】図1の制御システムの車輛ECUが実行するアルゴリズムの論理フローダイヤグラムである。
【符号の説明】
10 車輛用電気駆動システム 12 内燃エンジン
13 電子式エンジン制御ユニット 14 三相電動モータ/発電機
16 双方向性インバータ/整流器 17 マイクロ制御装置
18 高圧DCバス 20 双方向性インバータ/整流器
21 マイクロ制御装置 22 双方向性インバータ/整流器
23 マイクロ制御装置 24 トラクションモータ/発電機
26 前輪 28 トラクションモータ/発電機
30 後輪 32 アクスル
34 減速器 35 高/低レンジボックス
37 高/低レンジセレクターレバー
Claims (10)
- 内燃エンジン、このエンジンによって駆動される電気モータ/発電機、このモータ/発電機に接続された第1インバータ/整流器、この第1インバータ/整流器に接続されたバス、このバスに接続された第2インバータ/整流器、及びこの第2インバータ/整流器の出力に接続されたトラクションモータ/発電機、オペレータ速度制御部材、及び前記第2インバータ/整流器の電流出力を前記速度制御部材の位置の関数として制御するために前記第2インバータ/整流器に接続された制御装置および前記各トラクションモータ/発電機用の閉じた速度制御ループであって、前記制御装置が前記オペレータ速度制御部材からの指令された速度と前記モータ/発電機の検知された速度との差から速度エラーを計算し、該速度エラーの関数として前記モータ/発電機に電流を供給する、閉じた速度制御ループを備える車輛電気駆動システムの制限制御装置であり、前記制限制御装置が、
オペレータ制御式制限制御部材、及び
前記制限制御部材に連結されており、前記制限制御部材の位置を表す制限コマンド信号を発生するトランスジューサを含み、前記制御装置は、前記速度制御部材を介してオペレータにより指令された速度でトラクションモータ/発電機を駆動し、また制限コマンド信号を受け取り、前記第2インバータ/整流器によって前記トラクションモータ/発電機に供給された電流を、制限コマンド信号の関数である制限電流に制限する、可変電流制限制御装置。 - 請求項1に記載の制御装置において、前記制御装置、前記制限制御部材、及び前記トランスジューサが協働し、制限電流を前記制限制御部材の移動に応じて変化させる、可変電流制限制御装置。
- 請求項1に記載の制御装置において、
ばねが前記制限制御部材を上限位置に押圧し、
前記制御装置により前記第2インバータ/整流器が前記トラクションモータ/発電機に制限電流を供給するが、この制限電流は、前記速度制御装置によって指令された速度に達するのに必要な電流以下である、可変電流制限制御装置。 - 請求項1に記載の制御装置において、
前記制限制御部材は、足踏みペダルである、可変電流制限制御装置。 - 請求項1に記載の制御装置において、
前記制御装置は、前記制限コマンド信号がゼロから最大値まで変化するように、前記トランスジューサからの信号を計数する、可変電流制限制御装置。 - 請求項5に記載の制御装置において、
前記制限制御部材は一杯に持ち上げられた位置から一杯に押し込んだ位置まで移動自在であり、
前記制御装置は、前記トランスジューサからの信号に相殺を加え、その結果、ゼロの制限コマンド信号は、一杯に押し込んだ制限制御部材位置以下と対応し、100%の制限コマンド信号は、一杯に持ち上げられた制限制御部材位置以下と対応する、可変電流制限制御装置。 - 内燃エンジン、このエンジンによって駆動される電気モータ/発電機、このモータ/発電機に接続された第1インバータ/整流器、この第1インバータ/整流器に接続されたバス、このバスに接続された第2インバータ/整流器、及びこの第2インバータ/整流器の出力に接続されたトラクションモータ/発電機、オペレータ速度制御部材、及び前記第2インバータ/整流器の電流出力を前記速度制御部材の位置の関数として制御するために前記第2インバータ/整流器に接続された制御装置(40)および前記各トラクションモータ/発電機用の閉じた速度制御ループであって、前記制御装置が前記オペレータ速度制御部材からの指令された速度と前記モータ/発電機の検知された速度との差から速度エラーを計算し、該速度エラーの関数として前記モータ/発電機に電流を供給する、閉じた速度制御ループを備える車輛電気駆動システムの制限制御装置を持つ車輛電気駆動システムの別の制御装置(50、52)において、
オペレータ制御式足踏みペダル、及び
前記足踏みペダルに連結されており、前記足踏みペダルの位置を表す制限信号を発生するトランスジューサを含み、前記制御装置(40)は、トランスジューサ信号を受け取り、前記第2インバータ/整流器によって前記トラクションモータ/発電機に供給された電流を、トランスジューサ信号の関数である制限電流に制限する、可変電流制限制御装置。 - 請求項7に記載の別の制御装置(50、52)において、前記制御装置(40)、前記足踏みペダル、及び前記トランスジューサが協働し、前記制限電流を前記足踏みペダルの移動に応じて変化する、可変電流制限制御装置。
- 請求項7に記載の別の制御装置(50、52)において、
ばねが前記足踏みペダルを上限位置に付勢し、
前記制御装置(40)により前記第2インバータ/整流器は前記トラクションモータ/発電機に最大量の電流を供給するが、この電流は、前記足踏みペダルがその上限位置にある場合に前記速度制御装置によって指令された速度に達するのに必要とされる電流以下である、可変電流制限制御装置。 - 車輛電気駆動システムにおいて、
内燃エンジン、
このエンジンによって駆動される電気モータ/発電機、
このモータ/発電機に接続された第1インバータ/整流器、
この第1インバータ/整流器に接続されたバス、
このバスに接続された第2インバータ/整流器、
この第2インバータ/整流器の出力に接続されたトラクションモータ/発電機、
オペレータ速度制御部材、
前記第2インバータ/整流器の電流出力を前記速度制御部材の位置の関数として制御するために前記第2インバータ/整流器に接続された制御装置、
前記各トラクションモータ/発電機用の閉じた速度制御ループであって、前記制御装置が前記オペレータ速度制御部材からの指令された速度と前記モータ/発電機の検知された速度との差から速度エラーを計算し、該速度エラーの関数として前記モータ/発電機に電流を供給する、閉じた速度制御ループ、
オペレータ制御式足踏みペダル、及び
前記足踏みペダルに連結されたトランスジューサであって、前記足踏みペダルの位置を表すトランスジューサ信号を発生し、このトランスジューサ信号は、前記制御装置に伝えられ、前記制御装置は、前記第2インバータ/整流器が前記トラクションモータ/発電機に供給した電流を前記トランスジューサ信号の関数として制限電流に制限する、トランスジューサを含む、システム。
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-
2000
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- 2000-12-20 CA CA002329268A patent/CA2329268C/en not_active Expired - Fee Related
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2001
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- 2001-06-22 DE DE60109854T patent/DE60109854T2/de not_active Expired - Lifetime
- 2001-06-27 JP JP2001194285A patent/JP3811373B2/ja not_active Expired - Fee Related
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EP1167110B1 (en) | 2005-04-06 |
US6492785B1 (en) | 2002-12-10 |
EP1167110A2 (en) | 2002-01-02 |
JP2002058109A (ja) | 2002-02-22 |
CA2329268C (en) | 2003-12-16 |
DE60109854D1 (de) | 2005-05-12 |
EP1167110A3 (en) | 2003-07-30 |
CA2329268A1 (en) | 2001-12-27 |
DE60109854T2 (de) | 2005-09-29 |
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