| 摘要 |
<p>An ignition system (22) for multi-firing a spark plug of a spark ignition internal combustion engine and for detecting auto-ignition utilizing the spark plug as a feedback element. The ignition system (22) includes a pulse transformer (30) connected to a spark plug, a distribution element (28) coupled to the transformer (30), a timing element (32) connected to the distribution element (28), a controller (14), an engine position sensor and a spark discharge detection circuit (31). Based upon engine parameters, the controller (14) loads the timing elements with the appropriate signals and triggers one or three timers (32, 34, 36). The triggered timer begins to count down and times-out at the appropriate engine position, either ignition or simply auto-ignition. This triggers a second timer which enables yet another timer that provides control signals to the distribution element (28) to produce a series of voltage signals of a predetermined magnitude applied by the transformer(s) (30) at the spark plug.</p> |
