| 摘要 |
PROBLEM TO BE SOLVED: To contribute to reducing manufacturing cost, by improving versatility capable of widely coping with an engine with a different number of cylinders, in a fuel injection valve driving unit for driving a solenoid fuel injection valve. SOLUTION: This fuel injection valve driving unit 1A has two fuel injection valve driving circuits 10A and 10B for respectively driving a valve for opening, by carrying an electric current to electromagnetic coils 70a and 70b of the fuel injection valve arranged in a different cylinder; and is applied to the engine having the cylinder number of magnification of 2 in a combination of the fuel injection valve driving units 1A of the half number of its cylinder number. A base board 17 of its fuel injection valve driving circuits 10A and 10B is formed in a substantially rectangular shape, by arranging semiconductor elements of diodes 16a and 16b and transistors 14a, 14b, 14c and 14d in substantially one row. COPYRIGHT: (C)2006,JPO&NCIPI |
