JP2020026237A - モータ制御装置 - Google Patents
モータ制御装置 Download PDFInfo
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- JP2020026237A JP2020026237A JP2018152498A JP2018152498A JP2020026237A JP 2020026237 A JP2020026237 A JP 2020026237A JP 2018152498 A JP2018152498 A JP 2018152498A JP 2018152498 A JP2018152498 A JP 2018152498A JP 2020026237 A JP2020026237 A JP 2020026237A
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- 238000000034 method Methods 0.000 description 34
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- F16F15/002—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion characterised by the control method or circuitry
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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Abstract
Description
図1は、第1実施形態にかかるモータ制御装置110を含む車両Vの駆動システム100の構成を示した例示的かつ模式的なブロック図である。
上述した第1実施形態では、ヒステリシストルクに起因して発生するモータトルクの位相のずれに対応した補正用位相差を、捩れトルクおよびヒステリシストルクの両方を考慮した場合におけるクランク角およびモータ角の位相差に対応した実位相差と、ヒステリシストルクが発生しないと仮定して捩れトルクのみを考慮した場合におけるクランク角およびモータ角の位相差に対応した基準位相差と、の差分に基づいて算出する技術について説明した。
102 モータジェネレータ
103 トランスミッション
104 ダンパ
105 クラッチ
110、110a モータ制御装置
121 クランクシャフト
122 モータシャフト
124 インプットシャフト
302 ダンパトルク算出部
306、306a 補正量算出部
308 指令決定部(モータトルク指令出力部)
309 制御部(モータトルク指令出力部)
311 第1のマップ
312 第2のマップ
313 第3のマップ
314 第4のマップ
315 第5のマップ
Claims (10)
- 動力源としてのエンジンおよびモータジェネレータと、前記エンジンのクランクシャフトのエンジントルクおよび前記モータジェネレータのモータシャフトのモータトルクのうち少なくとも一方に基づく駆動トルクを選択された変速比で車輪側に伝達するトランスミッションと、前記クランクシャフトの振動を弾性部材および摩擦材によって低減するダンパと、を備えた車両のモータ制御装置であって、
前記クランクシャフトの回転角度としてのクランク角と前記モータシャフトの回転角度としてのモータ角との差分に基づいて、前記エンジントルクの変動に応じて前記ダンパが発生させる捩れトルクおよびヒステリシストルクを含むダンパトルクを算出するダンパトルク算出部と、
前記ダンパトルクに基づいて、当該ダンパトルクと逆位相の逆相トルクを算出する逆相トルク算出部と、
少なくとも前記クランク角と前記モータ角とに基づいて算出される、前記ヒステリシストルクに起因して発生する前記モータトルクの位相のずれに対応した第1の値を、前記逆相トルクの位相の補正量として算出する補正量算出部と、
前記補正量により位相が補正された前記逆相トルクに基づいて、前記モータジェネレータに与えるモータトルク指令を出力するモータトルク指令出力部と、
を備える、モータ制御装置。 - 前記モータトルク指令出力部は、前記エンジンと前記トランスミッションとの間に設けられるクラッチが、前記エンジンの前記クランクシャフトと前記トランスミッションのインプットシャフトとを接続する接続状態になっている場合に、前記モータトルク指令を出力し、前記クラッチが前記クランクシャフトと前記インプットシャフトとの接続を遮断する遮断状態になっている場合に、前記モータトルクをゼロにする前記モータトルク指令を出力する、
請求項1に記載のモータ制御装置。 - 前記モータトルク指令出力部は、前記クラッチが接続状態になっている場合であっても、前記車両を加速させる加速操作が行われていない場合には、前記モータトルクをゼロにする前記モータトルク指令を出力する、
請求項2に記載のモータ制御装置。 - 前記補正量算出部は、前記ヒステリシストルクが発生しないと仮定した場合に想定される前記クランク角と前記モータ角との位相差に対応した第2の値と、前記クランク角および前記モータ角の、前記エンジンの爆発の一次周波数に対応した振動成分の位相差に対応した第3の値と、の差分に基づいて、前記第1の値を算出する、
請求項1〜3のうちいずれか1項に記載のモータ制御装置。 - 前記補正量算出部は、前記エンジンの回転数と、前記トランスミッションの変速段と、に基づいて、前記第2の値を取得する、
請求項4に記載のモータ制御装置。 - 前記補正量算出部は、さらに、前記エンジンのオイルの温度と、前記トランスミッションのオイルの温度と、に基づいて、前記第2の値を取得する、
請求項5に記載のモータ制御装置。 - 前記エンジンの回転数と、前記トランスミッションの変速段と、前記第2の値の計算の基となる第4の値と、の関係を示す第1のマップと、
前記エンジンのオイルの温度と、前記トランスミッションのオイルの温度と、前記第4の値に乗じる第1の補正係数と、の関係を示す第2のマップと、
をさらに備え、
前記補正量算出部は、前記エンジンの回転数と前記トランスミッションの変速段とに基づいて前記第1のマップを参照することで得られる前記第4の値に、前記エンジンのオイルの温度と前記トランスミッションのオイルの温度とに基づいて前記第2のマップを参照することで得られる前記第1の補正係数を乗じることで、前記第2の値を算出する、
請求項6に記載のモータ制御装置。 - 前記ダンパの捩れ角と、前記ダンパの前記摩擦材が特性上発生させる特性トルクとの関係を示す第3のマップをさらに備え、
前記補正量算出部は、前記クランク角と前記モータ角との差分としての前記捩れ角に基づいて前記第3のマップを参照することで得られる前記特性トルクに基づいて、前記第1の値を算出する、
請求項1〜3のうちいずれか1項に記載のモータ制御装置。 - 前記ダンパの前記摩擦材の摺動距離と、前記特性トルクに乗じる第2の補正係数と、の関係を示す第4のマップをさらに備え、
前記補正量算出部は、前記捩れ角と前記ダンパの半径とに基づいて算出される前記摺動距離に基づいて前記第4のマップを参照することで得られる前記第2の補正係数を前記特性トルクに乗じることで算出される前記ヒステリシストルクに基づいて、前記第1の値を算出する、
請求項8に記載のモータ制御装置。 - 前記ヒステリシストルクと、前記第1の値と、の関係を示す第5のマップをさらに備え、
前記補正量算出部は、前記ヒステリシストルクに基づいて前記第5のマップを参照することで、前記第1の値を算出する、
請求項9に記載のモータ制御装置。
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