JP2023540829A - 動力電池加熱システム、その制御方法及び制御回路 - Google Patents
動力電池加熱システム、その制御方法及び制御回路 Download PDFInfo
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Abstract
Description
給電モジュール110については、動力電池自体で実現されるだけでなく、充電ポスト等の外部給電モジュールで実現されてもよい。該外部給電モジュールが提供する加熱エネルギーは、例えば外部直流充電器によって出力されてもよく、又は外部交流充電器によって整流された後に出力されてもよいが、ここで具体的に制限しない。
該第1スイッチ群230は該複数の第1巻線210に接続され、該第2スイッチ群240は該複数の第2巻線220に接続される。理解されるように、該「接続」は物理的に直接接続されてもよく、他のデバイスを介して接続されてもよい。
また、第1スイッチ群230及び第2スイッチ群240内のスイッチを周期的にオン及びオフにすることは、つまり、予め設定された周波数で第1スイッチ群230及び第2スイッチ群240内のスイッチを交互にオン及びオフにすることを指す。
以下、図3及び図4を参照しながら、本願の実施例に係る動力電池加熱システム400の回路図を詳細に説明する。
BMSから送信された加熱要求を受信することにより、制御モジュールは動力電池をタイムリーに加熱することができ、車両等の動力装置の使用に影響を与えることを回避する。
第1ブリッジアーム群のすべての上部ブリッジアームのオン、第1ブリッジアーム群のすべての下部ブリッジアームのオフ、第2ブリッジアーム群のすべての下部ブリッジアームのオン及び第2ブリッジアーム群のすべての上部ブリッジアームのオフを制御して、第1ブリッジアーム群のすべての上部ブリッジアーム、3つの第1巻線、3つの第2巻線、第2ブリッジアーム群のすべての下部ブリッジアーム及び給電モジュールの間の第1回路を形成するための第1加熱信号をスイッチモジュールに送信するステップS510と、
第1ブリッジアーム群のすべての下部ブリッジアームのオン、第1ブリッジアーム群のすべての上部ブリッジアームのオフ、第2ブリッジアーム群のすべての上部ブリッジアームのオン及び第2ブリッジアーム群のすべての下部ブリッジアームのオフを制御して、第1ブリッジアーム群のすべての下部ブリッジアーム、3つの第1巻線、3つの第2巻線、第2ブリッジアーム群のすべての上部ブリッジアーム及び給電モジュールの間の第2回路を形成するための第2加熱信号をスイッチモジュールに送信するステップS520と、を含み、
該第1回路及び該第2回路は電流に動力電池内で熱を発生させ、該動力電池を加熱することに用いられ、該3つの第1巻線の空間位相差は120°であり、該3つの第2巻線の空間位相差は120°である。
選択可能に、本願の実施例では、該給電モジュールは動力電池であり、該スイッチモジュールに第1加熱信号及び第2加熱信号を送信するステップは、該動力電池の荷電状態SOCを決定するステップと、該SOCが第1閾値よりも大きい場合、該スイッチモジュールに該第1加熱信号及び該第2加熱信号を送信するステップと、を含む。
選択可能に、本願の実施例では、該制御方法は、動力電池の温度が予め設定された温度に達し、又は、該動力電池の温度上昇が異常である場合、該スイッチモジュールに加熱停止信号を送信するステップをさらに含む。
S601、BMSは電池パックの温度、SOC、電圧信号及び電流信号等の電池パラメータを収集する。
S603、BMS又はVCUは電池SOCが第1閾値よりも大きいか否かを判断する。
S604、SOCが第1閾値よりも大きい場合、モーター回路を流れる交流電流により生じた熱で動力電池を加熱する。
S607、S606で温度上昇に異常がないと判断した場合、BMSは電池パックの温度が要件を満たすか否かを判断し、要件を満たす場合、VCUは停止加熱情報をモーター制御ユニットに転送し、加熱を停止し、そうでない場合、S604/S605及びS606を繰り返す。
選択可能に、該プロセッサ720は上記いずれかの動力電池加熱システムの制御モジュールに対応する。
210 複数の第1巻線
220 複数の第2巻線
230 第1スイッチ群
240 第2スイッチ群
250 給電モジュール
260 制御モジュール
Claims (10)
- 動力電池加熱システムの制御方法であって、
前記動力電池加熱システムは6相モーター、スイッチモジュール、及び給電モジュールを含み、
前記6相モーターは3つの第1巻線及び3つの第2巻線を含み、前記スイッチモジュールは第1ブリッジアーム群及び第2ブリッジアーム群を含み、前記第1ブリッジアーム群及び前記第2ブリッジアーム群内の各ブリッジアームはそれぞれ上部ブリッジアーム及び下部ブリッジアームを含み、前記第1ブリッジアーム群内の各ブリッジアームの上部ブリッジアームと下部ブリッジアームとの接続点は前記3つの第1巻線と一対一で対応して接続され、前記第2ブリッジアーム群内の各ブリッジアームの上部ブリッジアームと下部ブリッジアームとの接続点は前記3つの第2巻線と一対一で対応して接続され、前記第1ブリッジアーム群及び前記第2ブリッジアーム群はいずれも前記給電モジュールに並列接続され、
前記制御方法は、
前記第1ブリッジアーム群のすべての上部ブリッジアームのオン、前記第1ブリッジアーム群のすべての下部ブリッジアームのオフ、前記第2ブリッジアーム群のすべての下部ブリッジアームのオン及び前記第2ブリッジアーム群のすべての上部ブリッジアームのオフを制御して、前記第1ブリッジアーム群のすべての上部ブリッジアーム、前記3つの第1巻線、前記3つの第2巻線、前記第2ブリッジアーム群のすべての下部ブリッジアーム及び前記給電モジュールの間の第1回路を形成するための第1加熱信号を前記スイッチモジュールに送信するステップと、
前記第1ブリッジアーム群のすべての下部ブリッジアームのオン、前記第1ブリッジアーム群のすべての上部ブリッジアームのオフ、前記第2ブリッジアーム群のすべての上部ブリッジアームのオン及び前記第2ブリッジアーム群のすべての下部ブリッジアームのオフを制御して、前記第1ブリッジアーム群のすべての下部ブリッジアーム、前記3つの第1巻線、前記3つの第2巻線、前記第2ブリッジアーム群のすべての上部ブリッジアーム及び前記給電モジュールの間の第2回路を形成するための第2加熱信号を前記スイッチモジュールに送信するステップと、を含み、
前記第1回路及び前記第2回路は電流に動力電池内で熱を発生させ、前記動力電池を加熱することに用いられ、前記3つの第1巻線の空間位相差は120°であり、前記3つの第2巻線の空間位相差は120°であることを特徴とする動力電池加熱システムの制御方法。 - 前記スイッチモジュールに第1加熱信号及び第2加熱信号を送信する前記ステップは、
予め設定された周波数で、前記スイッチモジュールに前記第1加熱信号と前記第2加熱信号を交互に送信するステップを含むことを特徴とする請求項1に記載の制御方法。 - 前記給電モジュールは前記動力電池であり、前記スイッチモジュールに第1加熱信号及び第2加熱信号を送信する前記ステップは、
前記動力電池の荷電状態SOCを決定するステップと、
前記SOCが第1閾値よりも大きい場合、前記6相モーターに前記第1加熱信号及び前記第2加熱信号を送信するステップと、を含むことを特徴とする請求項1又は2に記載の制御方法。 - 前記スイッチモジュールに第1加熱信号及び前記第2加熱信号を送信するステップは、
モーター制御ユニットが車両制御ユニットから送信された、前記動力電池を加熱することを指示するための制御信号を受信するステップと、
前記モーター制御ユニットが前記制御信号に基づいて、前記スイッチモジュールに前記第1加熱信号及び前記第2加熱信号を送信するステップと、を含むことを特徴とする請求項1~3のいずれか1項に記載の制御方法。 - 前記制御方法は、
前記動力電池の温度が予め設定された温度に達し、及び/又は、前記動力電池の温度上昇が異常である場合、前記動力電池に対する加熱を停止することを指示するための加熱停止信号を前記スイッチモジュールに送信するステップをさらに含むことを特徴とする請求項1~4のいずれか1項に記載の制御方法。 - 前記スイッチモジュールに第1加熱信号及び第2加熱信号を送信する前記ステップは、
前記6相モーターの作動状態を取得するステップと、
前記6相モーターが非駆動状態にある場合、前記スイッチモジュールに前記第1加熱信号及び前記第2加熱信号を送信するステップと、を含むことを特徴とする請求項1~5のいずれか1項に記載の制御方法。 - 前記制御方法は、
電池管理システムBMSから送信された、前記動力電池が加熱条件を満たすことを指示するための加熱要求を受信するステップをさらに含むことを特徴とする請求項1~6のいずれか1項に記載の制御方法。 - 動力電池加熱システムであって、前記動力電池加熱システムは6相モーター、スイッチモジュール、制御モジュール及び給電モジュールを含み、
前記6相モーターは3つの第1巻線及び3つの第2巻線を含み、前記スイッチモジュールは第1ブリッジアーム群及び第2ブリッジアーム群を含み、前記第1ブリッジアーム群及び前記第2ブリッジアーム群内の各ブリッジアームはそれぞれ上部ブリッジアーム及び下部ブリッジアームを含み、前記第1ブリッジアーム群内の各ブリッジアームの上部ブリッジアームと下部ブリッジアームとの接続点は前記3つの第1巻線と一対一で対応して接続され、前記第2ブリッジアーム群内の各ブリッジアームの上部ブリッジアームと下部ブリッジアームとの接続点は前記3つの第2巻線と一対一で対応して接続され、前記第1ブリッジアーム群及び前記第2ブリッジアーム群はいずれも前記給電モジュールに並列接続され、
前記制御モジュールは、
前記第1ブリッジアーム群のすべての上部ブリッジアームのオン、前記第1ブリッジアーム群のすべての下部ブリッジアームのオフ、前記第2ブリッジアーム群のすべての下部ブリッジアームのオン及び前記第2ブリッジアーム群のすべての上部ブリッジアームのオフを制御して、前記第1ブリッジアーム群のすべての上部ブリッジアーム、前記3つの第1巻線、前記3つの第2巻線、前記第2ブリッジアーム群のすべての下部ブリッジアーム及び前記給電モジュールの間の第1回路を形成するための第1加熱信号を前記スイッチモジュールに送信すること、及び、
前記第1ブリッジアーム群のすべての下部ブリッジアームのオン、前記第1ブリッジアーム群のすべての上部ブリッジアームのオフ、前記第2ブリッジアーム群のすべての上部ブリッジアームのオン及び前記第2ブリッジアーム群のすべての下部ブリッジアームのオフを制御して、前記第1ブリッジアーム群のすべての下部ブリッジアーム、前記3つの第1巻線、前記3つの第2巻線、前記第2ブリッジアーム群のすべての上部ブリッジアーム及び前記給電モジュールの間の第2回路を形成するための第2加熱信号を前記スイッチモジュールに送信することに用いられ、
前記第1回路及び前記第2回路は電流に動力電池内で熱を発生させ、前記動力電池を加熱することに用いられ、前記3つの第1巻線の空間位相差は120°であり、前記3つの第2巻線の空間位相差は120°であることを特徴とする動力電池加熱システム。 - 動力電池加熱システムの制御回路であって、請求項1~7のいずれか1項に記載の制御方法を実行するためのプロセッサを含むことを特徴とする動力電池加熱システムの制御回路。
- 動力装置であって、動力電池及び請求項8に記載の動力電池加熱システムを含み、前記動力電池加熱システムは前記動力電池を加熱することに用いられ、前記動力電池は前記動力装置に電源を供給することに用いられることを特徴とする動力装置。
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