| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an injection control device which can reduce a variation of an injection amount.SOLUTION: A boost circuit part 17 comprises an inductor L1, a transistor M1 and the like, and generates a boosted voltage Vp which is obtained by boosting a battery voltage VB. A charge circuit part 18 comprises charge capacitors Cc1, Cc2, and transistors Mc1, Mc2 which open and close a charge route reaching the charge capacitors Cc1, Cc2 from a node Np, and charges the boosted voltage Vp. A discharge circuit part 20 comprises transistors Md1, Md2 which open and close a discharge passage reaching electromagnetic valves 11 to 14 from the charge capacitors Cc1, Cc2, and applies the boosted voltage Vp which is charged by the charge circuit part 18 to the electromagnetic valves 11 to 14. A control part 21 composed of a microcomputer 15 and an injection control IC 16 controls the boost circuit part 17, the charge circuit part 18 and the discharge circuit part 20.</p> |
