JP2007126073A - エンジンの振動抑制装置 - Google Patents
エンジンの振動抑制装置 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
- B60K6/20—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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
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Abstract
【解決手段】コントローラ20は、エンジン1の運転状態に基づきエンジン1の筒内圧力を推定し、推定した筒内圧力に基づきエンジン1のトルク変動を算出し、エンジン1のトルク変動と逆位相のトルクをトルク補正量として算出する。そして、モータジェネレータ2を回転駆動するためのトルク基本値にトルク補正量を加えてモータジェネレータ2のトルク指令値を算出し、モータジェネレータ2のトルクがこのトルク指令値に等しくなるようトルク制御する。
【選択図】図1
Description
図1は本発明が適用されるハイブリッド車両の概略構成を示している。この車両は、ディーゼルエンジン1とモータジェネレータ(回転電機)2、3の2種類の動力源で車輪を駆動するハイブリッド車両である。
図10は、第2の実施形態のハイブリッド車両の概略構成を示している。第1の実施形態と同じ構成については同じ参照符号を付して適宜説明を省略する。
第3の実施形態のハイブリッド車両の構成は図1に示した第1の実施形態と同じであるが、モータジェネレータ2が第1の実施形態よりも小型のものに変更されている。このため、モータジェネレータ2が発生できるトルクが限られており、第1の実施形態と同様に回転駆動のための基本トルクに対してトルク変動分の逆位相をそのままトルク補正量として加えてトルク指令値Tを算出すると、トルク指令値Tがモータジェネレータ2の発生可能トルクの最大値Tmaxを超えてしまう可能性がある。トルク指令値Tがモータジェネレータ2の発生可能トルクの最大値Tmaxを超えると、第2の実施形態で述べたように、所望の回転上昇速度が得られず、始動時間が長くなるといった問題がある。
の関係があるので、
2、3 モータジェネレータ(回転電機)
4 クラッチ
5 変速機
9 クラッチアクチュエータ
11、12 インバータ
13 バッテリ
14 燃料噴射装置
20 コントローラ
Claims (19)
- 回転電機が出力軸に接続されたエンジンの振動抑制装置において、
前記エンジンの運転状態に基づき前記エンジンの筒内圧力を推定する手段と、
前記推定した筒内圧力に基づき前記エンジンのトルク変動を算出する手段と、
前記エンジンのトルク変動と逆位相のトルクをトルク補正量として算出する手段と、
前記回転電機を回転駆動するためのトルク基本値に前記トルク補正量を加えて前記回転電機のトルク指令値を算出する手段と、
前記回転電機のトルクが前記トルク指令値に等しくなるよう前記回転電機をトルク制御する手段と、
を備えたことを特徴とするエンジンの振動抑制装置。 - 前記筒内圧力を推定する手段は、前記エンジンのクランク角、吸気圧、圧縮行程における圧縮開始時期に基づき前記エンジンの筒内圧力を算出することを特徴とする請求項1に記載のエンジンの振動抑制装置。
- 前記筒内圧力を推定する手段は、前記エンジンのクランク角と、圧縮行程における圧縮開始時期の吸気圧に基づき圧縮膨張行程における筒内圧力を算出することを特徴とする請求項2に記載のエンジンの振動抑制装置。
- 前記筒内圧力を推定する手段は、前記エンジンの吸気弁閉弁時期を圧縮開始時期とすることを特徴とする請求項2または3に記載のエンジンの振動制御装置。
- 前記筒内圧力を推定する手段は、エンジン始動時、前記エンジンが圧縮行程の途中から回転し始める場合は、前記エンジンの回転開始時を圧縮開始時期とすることを特徴とする請求項2から4のいずれかひとつに記載のエンジンの振動制御装置。
- 前記筒内圧力を推定する手段は、前記エンジンの温度、回転速度の少なくとも一つに基づいて前記筒内圧力を補正することを特徴とする請求項1から5のいずれかひとつに記載のエンジンの振動制御装置。
- 前記トルク補正量を算出する手段は、前記エンジンのトルク変動に補正係数を掛けたものの逆位相を前記トルク補正量として算出し、
前記トルク基本値に前記トルク補正量を加えた値の絶対値が前記回転電機の発生可能トルクの最大値を超えないよう前記補正係数を1以下の値に設定することを特徴とする請求項1から6のいずれかひとつに記載のエンジンの振動抑制装置。 - 前記トルク補正量を算出する手段は、前記エンジンのトルク変動がゼロになるタイミングで前記補正係数を更新することを特徴とする請求項7に記載のエンジンの振動抑制装置。
- 前記エンジンのトルク変動の最大値または最小値と前記基本トルクの差の絶対値が前記回転電機の発生可能トルクの最大値よりも大きい場合に、前記トルク指令値が前記回転電機の発生可能トルクの最大値を超えないように前記エンジン及び回転電機の運転状態に応じて前記トルク補正量の波形形状を変更する手段を備えたことを特徴とする請求項1から6のいずれかひとつに記載のエンジンの振動抑制装置。
- 前記波形形状を変更する手段は、前記トルク補正量の波形形状を、回転基本次数成分の位相が前記エンジンのトルク変動の回転基本次数成分の位相に等しく、かつ、波形の振幅が前記回転基本次数成分の振幅よりも小さくなる波形の逆位相に変更することを特徴とする請求項9に記載のエンジンの振動抑制装置。
- 前記波形形状を変更する手段は、前記トルク補正量の波形形状を、前記エンジンのトルク変動の回転基本次数成分と同じ振幅を有する正弦波の逆位相に変更することを特徴とする請求項10に記載のエンジンの振動抑制装置。
- 前記波形形状を変更する手段は、前記エンジンのトルク変動の最大値または最小値と前記基本トルクの差の絶対値が前記回転電機の発生可能トルクの最大値よりも大きいが、前記トルク基本値に前記エンジンのトルク変動の回転基本次数成分の振幅を加えた値が前記回転電機の発生可能トルクの最大値よりも小さい場合に、前記トルク補正量の波形形状を前記正弦波の逆位相に変更することを特徴とする請求項11に記載のエンジンの振動抑制装置。
- 前記波形形状を変更する手段は、前記トルク補正量の波形形状を、前記エンジンのトルク変動の回転基本次数成分と同じ振幅を有する台形正弦波の逆位相に変更することを特徴とする請求項9に記載のエンジンの振動抑制装置。
- 前記波形形状を変更する手段は、前記トルク基本値に前記エンジンのトルク変動の回転基本次数成分の振幅を加えた値が前記回転電機の発生可能トルクの最大値よりも大きく、前記トルク基本値に前記エンジンのトルク変動の回転基本次数成分の振幅のπ/4倍を加えた値が前記回転電機の発生可能トルクの最大値よりも小さい場合に、前記トルク補正量の波形形状を前記台形正弦波の逆位相に変更することを特徴とする請求項12または13に記載のエンジンの振動抑制装置。
- 前記波形形状を変更する手段は、前記トルク補正量の波形形状を、前記回転電機の発生可能トルクの最大値から前記トルク基本値を減じた値に等しい振幅を有する矩形波の逆位相に変更することを特徴とする請求項9に記載のエンジンの振動抑制装置。
- 前記波形形状を変更する手段は、前記トルク基本値に前記エンジンのトルク変動の回転基本次数成分の振幅のπ/4倍を加えた値が前記回転電機の発生可能トルクの最大値よりも大きい場合に、前記トルク補正量の波形形状を前記矩形波の逆位相に変更することを特徴とする請求項12、14または15に記載のエンジンの振動抑制装置。
- 前記回転電機には前記回転電機に電力を供給するバッテリが接続されており、
前記回転電機の発生可能トルクの最大値を前記バッテリの充電量に基づき決定する手段を備えたことを特徴とする請求項7から16のいずれかひとつに記載のエンジンの振動抑制装置。 - 前記トルク指令値を算出する手段は、前記エンジンの回転速度が所定回転速度よりも低いときに前記トルク基本値に前記トルク補正量を加えて前記トルク指令値を算出することを特徴とする請求項1から17のいずれかひとつに記載のエンジンの振動制御装置。
- 前記トルク指令値を算出する手段は、前記エンジンが燃焼していないときに前記トルク基本値に前記トルク補正量を加えて前記トルク指令値を算出することを特徴とする請求項1から18のいずれかひとつに記載のエンジンの振動制御装置。
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CN200610136595A CN100582460C (zh) | 2005-11-07 | 2006-10-31 | 发动机振动消除装置及其消除方法 |
US11/557,382 US7406939B2 (en) | 2005-11-07 | 2006-11-07 | Engine vibration suppression device and suppression method thereof |
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US20070101965A1 (en) | 2007-05-10 |
CN1963171A (zh) | 2007-05-16 |
US7406939B2 (en) | 2008-08-05 |
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