| 摘要 |
PROBLEM TO BE SOLVED: To suppress a variation of an A/D conversion cycle of a sensor signal in a signal processor, in a control system to which the signal processor and an electronic control device are connected via a communication line.SOLUTION: An ECU 11 comprises an oscillator 26, and a microcomputer 25 which is operated by a clock created by a clock creation part 27. A signal processor 30 comprises A/D conversion means which makes an A/D converter perform the A/D conversion of a sensor signal outputted by a fuel pressure sensor PS at a prescribed A/D conversion cycle, and an oscillator 32 and a clock creation part 34 which create clocks. The microcomputer 25 performs processing for controlling injectors 1 to 4 by using data of an A/D conversion result of the sensor signal which is transmitted from the signal processor 30. Furthermore, the system 10 comprises means for correcting the A/D conversion cycle which is measured by the A/D conversion means by using a clock at the signal processor 30 side to a set value on a layout with a cycle of a clock at the ECU side as true.SELECTED DRAWING: Figure 2 |
