JP7141291B2 - 電池システム - Google Patents
電池システム Download PDFInfo
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- JP7141291B2 JP7141291B2 JP2018181844A JP2018181844A JP7141291B2 JP 7141291 B2 JP7141291 B2 JP 7141291B2 JP 2018181844 A JP2018181844 A JP 2018181844A JP 2018181844 A JP2018181844 A JP 2018181844A JP 7141291 B2 JP7141291 B2 JP 7141291B2
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Description
中に存在するアラーム状況またはアラーム発生の数(例えば,使用中にサブモジュール22の推奨しきい値を超えたこと)を含む。この情報は、後続の回復のために記録されるある形式の情報を表す。サブモジュール22に関する他の情報も記録される。蓄積された、または記録された情報は、例えば、保証の目的のためにそのサブモジュールが使用されるかを決定するために、サブモジュール22の製造者(または他の適切な団体)によって利用される。サブモジュール22は、サブモジュール22の不良原因を決定しようと試みるために記録された情報にアクセスする製造者へ、顧客から返却される。
主接触器112および事前充電接触回路114が非接続動作モードにあるとき、接触器112,118は個々に開き、電池107をシステム端子101,103に接続された外部装置102から電気的に切り離すように動作する。後述のように、接続動作モードで動作している事前充電接触回路114は、接続動作モードで動作している主接触器112に比べて少ない電流量が流されるように構成される。
106は、電気エネルギーを電池部104から負荷に供給する、または充電電流を充電器から電池部104に供給するために、主接触器112を閉じるように制御する。一実施態様において、主接触器112および事前充電接触回路114の両者は、電池部104をシステム端子101から電気的に切り離すために、動作回路106によって実質的に同時に開けられる。
持するある動作において、改良された動作を提供する。したがって、ある実施態様において、ある部分の故障が存在しても、電気エネルギーは負荷に供給され、または充電のため充電器から受け取る。さらに、ある実施態様は、充電式の電池システムの設計において改良された柔軟性および拡張性を提供し、他の電池システムの設計に比べて、多種多様な応用を可能とする。
Claims (16)
- 第1の電池端子と、
第2の電池端子と、
処理回路と、
複数のサブモジュールと、を含み、
それぞれの前記サブモジュールは、
第1のサブモジュール端子と、
第2のサブモジュール端子と、
前記第1および第2のサブモジュール端子の間に電気的に接続された複数の充電式のセルと、
前記第1の電池端子または前記第2の電池端子と前記第1のサブモジュール端子または第2のサブモジュール端子との間に電気的に接続されたスイッチング回路であって、それぞれの前記サブモジュールの前記スイッチング回路が、それぞれの前記サブモジュールの前記複数の充電式のセルが外部装置と電気的に接続されていない非接続動作モードから、それぞれの前記サブモジュールの前記複数の充電式のセルが外部装置と電気的に接続された接続動作モードに移行するあいだ、急激な過電流を制限できるように構成されたスイッチング回路と、を含み、
前記外部装置は、電気負荷または充電器であり、
それぞれの前記サブモジュールの前記スイッチング回路は、前記急激な過電流を制限する前記移行の間の時間にわたって、非伝導状態から伝導状態にバイアスがかけられるように構成された少なくとも1つの半導体スイッチング装置を含み、
前記移行のあいだに、前記少なくとも1つの半導体スイッチング装置をオンにバイアスするために、増加するバイアス電圧が用いられ、
前記処理回路は、それぞれの前記サブモジュールの前記スイッチング回路を個別に制御するように構成されている電池。 - 前記外部装置は、複数の前記サブモジュールのうちの少なくとも一つの前記複数の充電式のセルから電気エネルギーを受け取るように構成された負荷を含む、請求項1に記載の電池。
- 前記外部装置は、複数の前記サブモジュールのうちの少なくとも一つの前記複数の充電式のセルに電気エネルギーを供給するように構成された充電器を含む、請求項1に記載の電池。
- 複数の前記サブモジュールのうちの少なくとも一つの前記複数の充電式のセルは、スイッチング回路を介して接触器を使用せずに前記外部装置に電気的に接続されるように構成されている、請求項1に記載の電池。
- それぞれの前記サブモジュールの前記スイッチング回路は、前記電池に対する損傷が起きるしきい値を下回るレベルまで、前記複数の充電式のセルに流れる電流を減少させるように構成される、請求項1に記載の電池。
- 前記処理回路が、それぞれの前記サブモジュールの前記スイッチング回路を、前記接続動作モードと前記非接続動作モードとの間で移行するように制御する請求項1に記載の電池。
- 前記外部装置が、前記第1の電池端子に電気的に接続され、
それぞれの前記サブモジュールの前記第1のサブモジュール端子を前記第1の電池端子に電気的に接続して、それぞれの前記サブモジュールの前記充電式のセルが前記外部装置に電気的に接続されるように、前記処理回路がそれぞれの前記サブモジュールの前記スイッチング回路を制御する請求項6に記載の電池。 - それぞれの前記サブモジュールの前記第1のサブモジュール端子を前記第1の電池端子から電気的に切り離して、それぞれの前記サブモジュールの充電式のセルが前記外部装置に電気的に接続されないように、前記処理回路がそれぞれの前記サブモジュールのスイッチング回路を制御する請求項7に記載の電池。
- 前記充電式のセルが前記外部装置に電気的に接続されるときに、前記処理回路がそれぞれの前記サブモジュールの前記充電式のセルを監視する請求項1に記載の電池。
- 前記外部装置が充電器であり、
前記充電式のセルが前記充電器に電気的に接続されるときに、前記処理回路が、前記充電器からそれぞれの前記サブモジュールの充電式のセルに供給される電気エネルギーの量を制御する請求項9に記載の電池。 - 前記処理回路が、
複数の前記サブモジュールのうちの第1のサブモジュールが複数の前記サブモジュールのうちの第2のサブモジュールより早く充電されていることを特定するとともに、
前記充電器から前記第2のサブモジュールの前記スイッチング回路に、前記第1のサブモジュールの前記スイッチング回路によって前記充電器から流される電流に比べて大きな電流を流させるように構成されている請求項10に記載の電池。 - 前記処理回路が、それぞれの前記サブモジュールのスイッチング回路の抵抗を制御し、これによって前記充電器からそれぞれの前記サブモジュールの充電式のセルに供給される電流の量を制御するように構成されている請求項11に記載の電池。
- 前記処理回路が、前記第2のサブモジュールの前記スイッチング回路の抵抗を減少させて、これによって前記充電器から前記第2のサブモジュールの前記スイッチング回路に前記大きな電流を流させるように構成されている請求項12に記載の電池。
- 前記処理回路が、複数の前記サブモジュールの少なくとも一つのアラーム状態を検出するように構成されている請求項1に記載の電池。
- 前記アラーム状態が検出されたことに応じて、前記処理回路が、複数の前記サブモジュールの前記少なくとも一つを被接続動作モードに移行させる請求項14に記載の電池。
- 複数の前記サブモジュールのそれぞれが、平衡回路を含み、
それぞれの前記サブモジュールの前記平衡回路が、当該サブモジュールの少なくとも一つの前記充電式のセルの周囲の電流を分岐するように構成されている請求項1に記載の電池。
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