JP6944052B2 - サスペンションにおけるダンパ摩擦影響の制御 - Google Patents
サスペンションにおけるダンパ摩擦影響の制御 Download PDFInfo
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- JP6944052B2 JP6944052B2 JP2020520743A JP2020520743A JP6944052B2 JP 6944052 B2 JP6944052 B2 JP 6944052B2 JP 2020520743 A JP2020520743 A JP 2020520743A JP 2020520743 A JP2020520743 A JP 2020520743A JP 6944052 B2 JP6944052 B2 JP 6944052B2
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Description
Claims (15)
- 少なくとも部分的にバネ上重量を支持する車両サスペンションシステムにおいて、
可動ピストンを含む、前記バネ上重量を支持するダンパと、
アクチュエータと、
コントローラであって、
前記バネ上重量に関連付けられた運動の周波数を判定することと、
前記バネ上重量に関連付けられた運動の前記周波数が第1の周波数閾値を下回る場合、制御信号を送信して、前記アクチュエータに、前記バネ上重量に減速力を印加させることと、
前記バネ上重量に関連付けられた運動の前記周波数が前記第1の周波数閾値を超える場合、制御信号を送信して、前記アクチュエータに、前記バネ上重量に補償力を印加させることと、
を備える動作を実行するように構成されたコントローラと
を備え、前記補償力の大きさが、前記ダンパについて判定された摩擦力に基づいている、システム。 - 前記動作が、
前記バネ上重量に関連付けられた横加速度を判定することと、
前記横加速度が横加速度閾値を下回る場合、前記アクチュエータに、前記バネ上重量に前記補償力を印加させることと、
前記横加速度が前記横加速度閾値を超える場合、前記アクチュエータに、前記バネ上重量に前記減速力を印加させることと
をさらに備える、請求項1に記載のシステム。 - 前記動作が、
ステアリングホイール角度が閾値ステアリングホイール角度よりも小さいことを判定することと、
前記閾値ステアリングホイール角度よりも小さいと判定された前記ステアリングホイール角度に基づいて、前記バネ上重量に関連付けられた運動の前記周波数に基づく前記バネ上重量に印加する前記補償力の大きさまたは前記バネ上重量に印加する前記減速力の大きさを判定することと
をさらに備える、請求項2に記載のシステム。 - 前記動作が、
ステアリングホイール角度が閾値ステアリングホイール角度を超えることを判定することと、
前記閾値ステアリングホイール角度を超える前記ステアリングホイール角度に基づいて、前記バネ上重量に関連付けられた前記横加速度を判定することと
をさらに備える、請求項2に記載のシステム。 - 前記動作が、
前記バネ上重量に関連付けられた前記周波数のゲインを判定することと、
前記横加速度のゲインを判定することと、
前記摩擦力と、前記周波数のゲインまたは前記横加速度のゲインのうちの少なくとも一方とに基づいて、前記補償力の大きさおよび/または前記減速力の大きさを判定することと
をさらに備える、請求項2に記載のシステム。 - 前記動作が、
前記可動ピストンに関連付けられた速度を判定することと、
前記可動ピストンに関連付けられた前記速度に基づいて前記摩擦力を判定することと
をさらに備える、請求項1に記載のシステム。 - 前記動作が、
前記ダンパおよび前記アクチュエータを含むバネ下重量に関連付けられた第1のセンサから第1のセンサデータを受信することと、
前記バネ上重量に関連付けられた第2のセンサから第2のセンサデータを受信することと、
前記第1のセンサデータまたは前記第2のセンサデータのうちの少なくとも一方に基づいて、前記可動ピストンに関連付けられた速度を判定することと
をさらに備える、請求項5に記載のシステム。 - 前記ダンパについて判定された前記摩擦力が、前記ダンパの前記可動ピストンとシリンダとの間の静摩擦と、前記可動ピストンと前記シリンダとの間のクーロン摩擦とに少なくとも部分的に基づいて判定され、
前記補償力の大きさおよび前記減速力の大きさが、前記ダンパについて判定された前記摩擦力に比例する、請求項1に記載のシステム。 - 前記動作が、
前記バネ上重量に関連付けられた横加速度を判定することと、
前記横加速度が横加速度閾値を下回る場合、前記アクチュエータに、前記バネ上重量に前記補償力を印加させることと、
前記横加速度が前記横加速度閾値に向かって増加するのにつれて、前記補償力を徐々に減少させることと
をさらに備える、請求項1に記載のシステム。 - 前記動作が、
前記横加速度が前記横加速度閾値に到達する前に、前記アクチュエータに前記補償力の印加を停止させることと、
前記横加速度が前記横加速度閾値を超える場合、前記アクチュエータに、前記摩擦力に比例する減速力に到達する前に前記バネ上重量に徐々に増加する減速力を印加させることと
をさらに備える、請求項9に記載のシステム。 - 前記動作が、
前記バネ上重量に関連付けられた運動の前記周波数が前記第1の周波数閾値に向かって増加するのにつれて、前記アクチュエータに前記減速力を徐々に低減させることと、
前記摩擦力に基づく大きさに到達するまで前記バネ上重量に関連付けられた運動の前記周波数が前記第1の周波数閾値を超えると、前記アクチュエータに前記補償力を徐々に増加させながら印加させることとをさらに備える、請求項1に記載のシステム。 - 前記動作が、前記バネ上重量に関連付けられた運動の前記周波数が第2の周波数閾値に向かって増加するのにつれて、前記アクチュエータに前記補償力を徐々に低減させることをさらに備える、請求項1に記載のシステム。
- ダンパを含み、少なくとも部分的にバネ上重量を支持する車両サスペンションを動作させる方法において、
コントローラにより、前記バネ上重量に関連付けられた運動の周波数を判定することと、
前記バネ上重量に関連付けられた運動の前記周波数が第1の周波数閾値を下回る場合、制御信号を送信して、アクチュエータに、前記バネ上重量に減速力を印加させることと、
前記バネ上重量に関連付けられた運動の前記周波数が前記第1の周波数閾値を超える場合、制御信号を送信して、前記アクチュエータに、前記バネ上重量に補償力を印加させることと
を備え、前記補償力の大きさが、前記ダンパについて判定された摩擦力に基づいている、方法。 - 前記バネ上重量に関連付けられた横加速度を判定することと、
前記横加速度が横加速度閾値を下回る場合、前記アクチュエータに、前記バネ上重量に前記補償力を印加させることと、
前記横加速度が前記横加速度閾値を超える場合、前記アクチュエータに、前記バネ上重量に前記減速力を印加させることと
をさらに備える、請求項13に記載の方法。 - 車両サスペンションに関連付けられた1つ以上のプロセッサによって実行されると、前記1つ以上のプロセッサをプログラムして動作を実行する命令を記憶するコンピュータ可読媒体において、前記動作が、
前記車両サスペンションによって少なくとも部分的に支持されたバネ上重量に関連付けられた運動の周波数を判定することと、
前記バネ上重量に関連付けられた運動の前記周波数が第1の周波数閾値を下回る場合、制御信号を送信して、アクチュエータに、前記バネ上重量に減速力を印加させることと、
前記バネ上重量に関連付けられた運動の前記周波数が前記第1の周波数閾値を超える場合、制御信号を送信して、前記アクチュエータに、前記バネ上重量に補償力を印加させることと
を備え、前記補償力の大きさが、前記車両サスペンションに含まれるダンパについて判定された摩擦力に基づいている、コンピュータ可読媒体。
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