Electronic fuel control system including electronic means for providing a continuous variable correction factor
An electronic fuel control system of the type providing fuel delivery controlling signals during the period of time that at least a portion of a controlled signal maintains a preselected relationship with respect to particular value is provided with circuit means for continuously providing a variable correction factor. The injection controlling signal is produced by generating a time varying voltage which varies in a predetermined fashion following the occurrence of a triggering event. The generated voltage signal has a first or correction portion and a second or injection controlling portion. The magnitude of the first portion is modulated as a function of the time elapsed from the most recently to have occurred triggering event to provide accurate information to controllably affect fuel delivery. The circuitry of the present invention provides a plurality of voltage level establishing means which may be sequentially operable to establish a maximum charge on the timing capacitor and further includes controllable energy discharge means to vary the control charge from a higher to a lower value. In addition, further switching means are illustrated to controllably sequence the application of the circuitry of the present invention between selected ones of a plurality of timing capacitors which are to be sequentially operated.
- Assignee:
- Bendix Corp The
- Patent Number(s):
- US 4314538
- OSTI ID:
- 5315842
- Resource Relation:
- Patent File Date: Filed date 25 Feb 1974; Other Information: PAT-APPL-445411
- Country of Publication:
- United States
- Language:
- English
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