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US06347275B1 Method and apparatus for attenuating torsional vibration in drive train in vehicle 失效
用于衰减车辆传动系中扭转振动的方法和装置

  • 专利标题： Method and apparatus for attenuating torsional vibration in drive train in vehicle
  • 专利标题（中）： 用于衰减车辆传动系中扭转振动的方法和装置
  • 申请号： US09579980
    申请日： 2000-05-26
  • 公开(公告)号： US06347275B1
    公开(公告)日： 2002-02-12
  • 发明人: Futoshi Nakano
  • 申请人： Futoshi Nakano
  • 优先权： JP11-152502 19990531; JP11-154023 19990601
  • 主分类号： F02D4114
  • IPC分类号： F02D4114
Method and apparatus for attenuating torsional vibration in drive train in vehicle
摘要：
Detected first is fluctuation of engine revolution speed that varies with torsional vibration occurring in a drive train when the vehicle is acceleratedldecelerated. A basic amount of fuel injection (Qbase) is determined from an accelerator opening (APS) and engine revolution speed (RPM). An intermediate value (Qbad), which is an amount of fuel needed at the time of drive power being first transmitted to drive wheels from an engine, is determined from water temperature (Tw) and engine revolution speed (RPM). A difference (Qabs) is calculated by subtracting the intermediate value (Qbad) from the basic value (Qbase). A correction value (Qacl2) to counterbalance the fluctuation of the engine revolution speed (RPM) is then determined based on the difference (Qabs), engine revolution speed (RPM), engine revolution speed change (&Dgr;RPM) and/or its differential value (D&Dgr;RPM). A target amount of fuel injection (Qfnl) is sequentially increased/decreased in accordance with the correction value (Qacl2), thereby attenuating the torsional vibration.
摘要（中）：

首先检测到当车辆加速减速时随着传动系中发生的扭转振动而变化的发动机转速波动。 从加速器开度（APS）和发动机转速（RPM）确定基本的燃料喷射量（Qbase）。 根据水温（Tw）和发动机转速（RPM）确定驱动力首先从发动机传递到驱动轮时需要的燃料量的中间值（Qbad）。 通过从基本值（Qbase）中减去中间值（Qbad）来计算差值（Qabs）。 然后，基于差（Qabs），发动机转速（RPM），发动机转速变化（DELTARPM）和/或其差动值（DELTARPM）来确定平衡发动机转速（RPM）波动的校正值（Qacl2） DDELTARPM）。 燃料喷射的目标量（Qfn1）根据校正值（Qacl2）依次增加/减少，从而衰减扭转振动。

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