Fuel injector and control method for internal combustion engine
First Claim
1. A control system used for a fuel injection device equipped with a fuel injection solenoid valve for supplying a fuel directly to a combustion chamber interior of an internal combustion engine, the system comprising:
- a plurality of first energy storage elements, each for supplying a high voltage to the fuel injection solenoid valve;
a boosting circuit for boosting a battery voltage and electrically charging each of the first energy storage elements;
a second energy storage element for accumulating electrical energy of the battery voltage; and
a switching circuit for transferring the electrical energy between the plurality of first energy storage elements via the second energy storage element.
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Accused Products
Abstract
A fuel injection control system for an internal combustion engine includes a plurality of first energy storage elements each for supplying a high voltage to a fuel injection solenoid valve, boosting circuits each for boosting a battery voltage and electrically charging one of the first energy storage elements, a second energy storage element for accumulating electrical energy of the battery voltage, and a switching circuit for transferring the electrical energy between the plurality of first energy storage elements via the second energy storage element. This configuration enables the fuel injection control system for an internal combustion engine to implement stabilized supply of a fuel by obtaining within a short time the high voltage needed to operate the fuel injector both accurately and reliably, and to contribute to cost reduction by, for example, alleviating capability requirements and part performance requirements of the individual boosting circuits.
17 Citations
7 Claims
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1. A control system used for a fuel injection device equipped with a fuel injection solenoid valve for supplying a fuel directly to a combustion chamber interior of an internal combustion engine, the system comprising:
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a plurality of first energy storage elements, each for supplying a high voltage to the fuel injection solenoid valve; a boosting circuit for boosting a battery voltage and electrically charging each of the first energy storage elements; a second energy storage element for accumulating electrical energy of the battery voltage; and a switching circuit for transferring the electrical energy between the plurality of first energy storage elements via the second energy storage element. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification