| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel injection valve control device capable of injecting fuel even if any trouble occurs in a fuel pressure control means and also performing an evacuation operation so that a burnout accident does not occur. SOLUTION: In this fuel injection valve control device, electric power is rapidly supplied from an auxiliary power supply 7 boosted at valve opening timing to the solenoid 6 of a fuel injection valve through a first opening/closing element 21 and then continuously supplied from a main power supply 1 thereto through a second opening/closing element 25 to open the valve and hold the opening of the valve by a current so as to be returnable controlled by the second opening/closing element 25. At least either of current values of the rapid power supply and the holding of the opening of the valve is varied according to a change in fuel pressure to change the valve opening force and the valve opening holding force of the fuel injection valve so that, when fuel pressure is above a specified value and the rotational speed of the internal combustion engine is above a specified value, the rotational speed of the internal combustion engine can be suppressed to a specified value or less by controllably suppressing at least either of a fuel supply amount and an intake air amount. COPYRIGHT: (C)2005,JPO&NCIPI
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