| 摘要 |
<p>In one embodiment of the present invention a method and apparatus for collecting sensor data for selected events during the operational cycle of each cylinder in an internal combustion engine is disclosed. The present invention includes one or more sensors (78) connected to one or more signal multiplexers (334), a map of sensors corresponding to each cylinder and to each multiplexer (334), and information from an engine control module regarding the sequence and timing of events during the operational cycle of the engine. The engine control module selectively collects data from the sensors (78) by determining the multiplexer channel and the time period during which the data will be available, and then enabling the multiplexer (334) to transmit the data to a signal processing circuit during the time period that the event occurs. The data is processed and used to monitor engine performance and control timing of events for each cylinder to improve engine performance.</p> |
