Engine ignition and control system
    1.
    发明公开
    Engine ignition and control system 失效
    Maschinenzünd和控制系统。

    公开(公告)号:EP0652363A3

    公开(公告)日:1996-05-29

    申请号:EP94117540.8

    申请日:1994-11-07

    摘要: An engine ignition and control system for an internal combustion engine. The system includes an ignition transformer mounted directly to a spark plug and adapted to rapidly re-fire the spark plug during a combustion cycle enabling e.g. multispark ignition during adverse engine operating conditions and here the performance of various ignition diagnostic procedures. A controller provides signals to a circuit which causes charging of the transformer for ignition and subsequent charging of the transformer for diagnostic purposes. The system also includes a diagnostic circuit, connected to the transformer, which can detect the occurrence of electrical discharges across the spark plug electrodes as a result of the diagnostic charges. The detection circuit either outputs a signal or omits a signal to the controller which allows the controller to diagnose conditions within the combustion cylinder such as misfire, autoignition or preignition. Additionally, the diagnostic circuit is capable of outputting a signal which can be correlated to the load on the engine.

    Misfire detection method
    2.
    发明公开
    Misfire detection method 失效
    用于检测失火的方法。

    公开(公告)号:EP0652365A2

    公开(公告)日:1995-05-10

    申请号:EP94117547.3

    申请日:1994-11-07

    摘要: A method for detecting misfire in the combustion cylinder of a spark ignition internal combustion engine. The method includes the steps of charging an ignition transformer to a maximum ignition charge and initiating an ignition discharge between electrodes of the spark plug. The ignition transformer is then charged to a predetermined diagnostic charge which is less than said maximum ignition charge. If combustion is occurring within the cylinder, the temperature and pressure near the spark plug will be sufficient to allow the diagnostic charge to discharge. If the diagnostic charge does not discharge, the charge will be reflected back into the ignition transformer where it will be detected by a circuit as an indicia of misfire. Further also detection of autoginition, preignition and engine load. Use is made of special CPP ignition transformers which are able to refire at short intervals. Multispark ignition applied during hard engine operating conditions e.g. cold starting.

    Load detection method
    4.
    发明公开
    Load detection method 失效
    Methode zur Lasterkennung。

    公开(公告)号:EP0652364A2

    公开(公告)日:1995-05-10

    申请号:EP94117546.5

    申请日:1994-11-07

    摘要: A method for determining engine load of a spark ignition internal combustion engine. The method includes the steps of charging an ignition transformer to a maximum ignition charge and initiating an ignition discharge between electrodes of the spark plug. The ignition transformer is then charged to a predetermined diagnostic charge which is less than said maximum ignition charge. The diagnostic charge is discharged at a time of the combustion cycle where pressure in the combustion cylinder is dependent on engine load. The duration diagnostic discharge is then monitored and subsequently correlated to engine load. In this manner, the spark plug is used as a feedback element in determining engine load. Further also detection of misfire, autoignition and preignition. Use is made of special CPP ignition transformers which are able to refire at short intervals. Multispark ignition applied during hard engine operating conditions e.g. cold starting.

    摘要翻译: 一种用于确定火花点火式内燃机的发动机负荷的方法。 该方法包括以下步骤:将点火变压器充电到最大点火电荷并且在火花塞的电极之间引发点火放电。 然后将点火变压器充电至小于所述最大点火电荷的预定诊断电荷。 诊断电荷在燃烧循环的时间被排出,在燃烧气缸中的压力取决于发动机的负荷。 然后监测持续时间诊断放电,并随后与发动机负载相关。 以这种方式,火花塞用作确定发动机负荷的反馈元件。

    Engine ignition and control system
    6.
    发明公开
    Engine ignition and control system 失效
    Maschinenzündund -steuersystem。

    公开(公告)号:EP0652363A2

    公开(公告)日:1995-05-10

    申请号:EP94117540.8

    申请日:1994-11-07

    摘要: An engine ignition and control system for an internal combustion engine. The system includes an ignition transformer mounted directly to a spark plug and adapted to rapidly re-fire the spark plug during a combustion cycle enabling e.g. multispark ignition during adverse engine operating conditions and here the performance of various ignition diagnostic procedures. A controller provides signals to a circuit which causes charging of the transformer for ignition and subsequent charging of the transformer for diagnostic purposes. The system also includes a diagnostic circuit, connected to the transformer, which can detect the occurrence of electrical discharges across the spark plug electrodes as a result of the diagnostic charges. The detection circuit either outputs a signal or omits a signal to the controller which allows the controller to diagnose conditions within the combustion cylinder such as misfire, autoignition or preignition. Additionally, the diagnostic circuit is capable of outputting a signal which can be correlated to the load on the engine.

    摘要翻译: 一种用于内燃机的发动机点火和控制系统。 该系统包括直接安装在火花塞上并适于在燃烧循环期间快速重新点燃火花塞的点火变压器,从而能够执行各种点火诊断程序。 控制器向电路提供信号,该电路使变压器充电以进行点火,并随后为了诊断目的对变压器进行充电。 该系统还包括连接到变压器的诊断电路,其可以检测由于诊断电荷而导致火花塞电极放电的发生。 检测电路输出信号或省略信号给控制器,允许控制器诊断燃烧气缸内的状况。 此外,诊断电路能够输出可以与发动机上的负载相关联的信号。

    Auto-ignition detection method
    9.
    发明公开
    Auto-ignition detection method 失效
    用于检测自燃的方法。

    公开(公告)号:EP0652366A3

    公开(公告)日:1996-05-29

    申请号:EP94117548.1

    申请日:1994-11-07

    摘要: An engine ignition and control system for an internal combustion engine. The system includes an ignition transformer mounted to a spark plug and adapted to rapidly re-fire the spark plug during a combustion cycle enabling e.g. multispark ignition during adverse engine operating conditions and here the performance of various engine diagnostic procedures. A controller provides a signal to an ignition circuit which causes the transformer to charge for ignition and subsequently charge for performing diagnostics. The system also includes a diagnostic circuit, connected to the transformer, which can detect the occurrence of an electrical discharge across the spark plug electrodes as a result of one of the diagnostic charges. The detections circuit either outputs a signal to the controller or omits the signal to the controller. This allows the controller to diagnose conditions within the combustion cylinder such as autoignition, misfire, preignition or load.

    Ignition transformer
    10.
    发明公开
    Ignition transformer 失效
    Zündtransformator。

    公开(公告)号:EP0652573A3

    公开(公告)日:1996-05-29

    申请号:EP94117541.6

    申请日:1994-11-07

    摘要: An ignition and engine control system for an internal combustion engine. The system includes a flyback ignition transformer which can rapidly re-fired a spark plug during a combustion cycle to perform various ignition diagnostic procedures using the spark plug as a feedback element of the control system. The transformer is adapted for mounting directly to a spark plug and includes a core about which a primary and secondary are toroidally wound. A controller provides signals to a circuit which causes maximum charging of the transformer for ignition and subsequent charging of the transformer for diagnostic purposes. The system also includes a diagnostic circuit which can detect the occurrence of an electrical discharge, and/or its duration, across the spark plug as a result of one of the diagnostic charges by monitoring the transformer for a reflected voltage in its primary. The detection circuit outputs a signal to the controller which allows the controller to diagnose conditions within the combustion cylinder.