| 摘要 |
<p>A device (30) for diagnosing vehicle ignition system (100), said system comprising a spark plug (22), an ignition coil (10) having a primary coil (L1) and a secondary coil (L2) and an energizing means (24) for energizing said primary coil (L1) of the ignition coil (10) to induce an ignition voltage in the secondary coil (L2) for producing a spark at the spark plug, said characterized in that a voltage measuring means (32) for measuring a voltage at a primary junction (PJ1) of the ignition coil (10) when said ignition voltage is induced in said secondary coil (L2) a determining means (34) for determining said ignition voltage from said measured voltage and a diagnosing means (36) for diagnosing the ignition system based on said determined ignition voltage. Reference figure: Figure 1</p> |
