JP2010017044A - モータ制御装置,電力変換装置及びハイブリッド車両 - Google Patents
モータ制御装置,電力変換装置及びハイブリッド車両 Download PDFInfo
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Abstract
本発明の課題は、ブラシレスモータの起動時や低負荷時の駆動であっても、センサレス制御による安定したモータ駆動を実現することである。
【解決手段】
モータの各相の誘起電圧をアナログ信号により検出し、さらに該検出結果をデジタル信号に変換する電圧検出回路部と、前記電圧検出回路部により検出された非通電相の誘起電圧情報に基づき、前記スイッチング素子のスイッチング周期のオン時間である通電率を調整することにより前記モータの可変速制御を実行するPWM制御回路部と、前記PWM制御回路部で調整される通電率と予め定めた通電率との差に基づいて、該PWM制御回路部の通電率を変更する通電率変更部と、を備え、前記PWM制御回路部は、前記通電率変更部により変更された通電率における前記スイッチング素子のオン期間に、前記電圧検出回路部からの検出結果を読み込むモータ制御装置を提供する。
【選択図】図10
Description
112 前輪
114 前輪車軸
116 前輪側デファレンシャルギア
118 変速機
120 エンジン
122 動力分配機構
136 バッテリ
140,142 インバータ装置
146 オイルポンプ駆動用インバータ回路
192,194 モータ
196 ブラシレスモータ
198 オイルポンプモータ
500 コンデンサモジュール
Claims (10)
- 複数相を有するモータに内蔵された電機子巻線に印加する電圧を切り替えるための複数のスイッチング素子を有するインバータ回路部と、
前記モータの各相の誘起電圧をアナログ信号により検出し、さらに該検出結果をデジタル信号に変換する電圧検出回路部と、
前記電圧検出回路部により検出された非通電相の誘起電圧情報に基づき、前記スイッチング素子のスイッチング周期のオン時間である通電率を調整することにより前記モータの可変速制御を実行するPWM制御回路部と、
前記PWM制御回路部で調整される通電率と予め定めた通電率との差に基づいて、該PWM制御回路部の通電率を変更する通電率変更部と、を備え、
前記PWM制御回路部は、前記通電率変更部により変更された通電率における前記スイッチング素子のオン期間に、前記電圧検出回路部からの検出結果を読み込むモータ制御装置。 - 請求項1に記載のモータ制御装置であって、
前記インバータ回路は、直列に接続された上下アームを構成し、
前記通電率変更部は、前記PWM制御回路部で調整される通電率と予め定めた通電率との差に基づいて、前記上アームの通電率を増加させ、かつ該上アームの通電率の増加分に応じて前記下アームの通電率を変更するモータ制御装置。 - 請求項1に記載のモータ制御装置であって、
前記モータは、車両の変速機に油圧を供給するオイルポンプを駆動して車両駆動用モータと該変速機と機械的に結合するためのモータであるモータ制御装置。 - 請求項3に記載のモータ制御装置であって、
前記モータの回転数が該モータの停止状態を含む所定の低回転数以下であるとき、前記モータの回転子位置に対し、無関係に通電相を切り替える同期運転により該モータを制御し、
前記モータの回転数が所定の低回転数より大きいとき、前記PWM制御回路部によって該モータを制御するモータ制御装置。 - 請求項3に記載のモータ制御装置を内蔵した電力変換装置であって、
前記車両駆動用モータを駆動するためのパワーモジュールと、
前記パワーモジュールと前記モータ制御装置を内蔵する筐体と有する電力変換装置。 - 請求項5に記載のモータ制御装置を内蔵した電力変換装置であって、
前記筐体は、冷却媒体を流すための流路形成体を有し、
前記パワーモジュールは前記流路形成体の一方の面に設置され、
前記モータ制御装置は該流路形成体を挟んだ前記流路形成体の他方の面に設置される電力変換装置。 - エンジンと車両駆動用モータとの協調により車両を駆動し、かつ車両駆動用モータと変速機との連結を行うためのオイルポンプ用モータを有するハイブリッド車両に用いられる電力変換装置であって、
前記オイルポンプ用モータに内蔵された電機子巻線に印加する電圧を切り替えるための複数のスイッチング素子を有するインバータ回路部と、
前記オイルポンプ用モータの各相の誘起電圧をアナログ信号により検出し、さらに該検出結果をデジタル信号に変換する電圧検出回路部と、
前記電圧検出回路部により検出された非通電相の誘起電圧情報に基づき、前記スイッチング素子のスイッチング周期のオン時間である通電率を調整することにより前記オイルポンプ用モータの可変速制御を実行するPWM制御回路部と、
前記PWM制御回路部で調整される通電率と予め定めた通電率との差に基づいて、該PWM制御回路部の通電率を変更する通電率変更部と、を備え、
前記PWM制御回路部は、前記通電率変更部により変更された通電率における前記スイッチング素子のオン期間に、前記電圧検出回路部からの検出結果を読み込む電力変換装置。 - 請求項7に記載の電力変換装置であって、
前記オイルポンプ用モータの回転数が該モータの停止状態を含む所定の低回転数以下であるとき、前記モータの回転子位置に対し、無関係に通電相を切り替える同期運転により該オイルポンプ用モータを制御し、
前記オイルポンプ用モータの回転数が所定の低回転数より大きいとき、前記PWM制御回路部によって前記オイルポンプ用モータを制御する電力変換装置。 - エンジンと車両駆動用モータとの協調により車両を駆動し、かつ車両駆動用モータと変速機との連結を行うためのオイルポンプ用モータを有するハイブリッド車両であって、
前記オイルポンプ用モータに内蔵された電機子巻線に印加する電圧を切り替えるための複数のスイッチング素子を有するインバータ回路部と、
前記オイルポンプ用モータの各相の誘起電圧をアナログ信号により検出し、さらに該検出結果をデジタル信号に変換する電圧検出回路部と、
前記電圧検出回路部により検出された非通電相の誘起電圧情報に基づき、前記スイッチング素子のスイッチング周期のオン時間である通電率を調整することにより前記オイルポンプ用モータの可変速制御を実行するPWM制御回路部と、
前記PWM制御回路部で調整される通電率と予め定めた通電率との差に基づいて、該PWM制御回路部の通電率を変更する通電率変更部と、を備え、
前記PWM制御回路部は、前記通電率変更部により変更された通電率における前記スイッチング素子のオン期間に、前記電圧検出回路部からの検出結果を読み込むハイブリッド車両。 - 請求項9に記載のハイブリッド車両であって、
前記オイルポンプ用モータの回転数が該モータの停止状態を含む所定の低回転数以下であるとき、前記モータの回転子位置に対し、無関係に通電相を切り替える同期運転により該オイルポンプ用モータを制御し、
前記オイルポンプ用モータの回転数が所定の低回転数より大きいとき、前記PWM制御回路部によって前記オイルポンプ用モータを制御するハイブリッド車両。
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