| 摘要 |
The system, for a four-stroke, four-cylinder engine, comprises:
sensors that provide signals indicative of the running conditions of the engine,
two ignition transformers, having their respective output windings connected to the spark plugs of a respective pair of cylinders of the engine,
means for monitoring the current flow in the input windings of these transformers,
switching means for selective connection in alternation to the input windings of these transformers, and a microprocessor unit.
<??>The switching means comprise two electronically controlled switch devices, respectively in series with the input winding of the first and of the second ignition transformer, connected together in a current path in parallel. A third switch device, controlled by the microprocessor unit, selectively connects the output of a single integrated circuit controlling the angle of "dwell" to either the first or the second controlled switch device, in dependence on the signals provided by the microprocessor unit. |
