| 摘要 |
PURPOSE:To discriminate assuredly the switch state despite the noises and to prevent a malfunction by reading periodically the state of a switch and deciding the states of the 1st and 2nd switches in accordance with the result of reading. CONSTITUTION:A memory 2, a data output part 3 and a data input part 4 are connected to a processor 1 consisting of a processor, etc. A fuel injector 6 of an engine main body 5 is connected to the output part. A throttle valve 8 is provided to a throttle chamber 7, and the part 4 is connected to the valve 8 via a throttle valve switch 9. A switch 10 is defined as a switch that can have the 1st (OFF) and 2nd (ON) states, and a reading means 12 is periodically driven by the 1st driving means 11 to read the state of the switch 10. If the reading result shows an OFF state, the means 12 is driven by the 2nd driving means 13 to read the state of the switch 10. This reading result is given to a deciding means 14 to decide the state of the switch 10. |
