Firing time control circuit
First Claim
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1. An adaptive control circuit for producing an output circuit signal at a time subsequent to an initial event as determined by an optimizing control system, comprising:
- (a) multi-stage delay line means having a plurality of output taps emanating from predetermined stages thereof and having an input terminal for receiving a pulse indicative of said initial event;
(b) means for propagating said pulse through said delay line at a desired rate;
(c) code responsive means coupled to said plurality of output taps for selecting only one of said taps at a time and delivering the signal thereon to a utilization device;
(d) bi-directional counting means having its output coupled to said code responsive means; and
(e) means for incrementing or decrementing said counting means by a predetermined count value as determined by said optimizing control system.
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Abstract
An adaptive control circuit for use with a machine performance optimizing system for producing a control delay between a first event and the time at which a response to that event is to take place. The adaptive control circuit of this invention, when used with an internal combustion point closure signal and will advance or retard the generation of a spark plug firing signal for a period determined by the optimizing system'"'"'s operating parameters, while still maintaining the desired dwell dictated by the engine manufacturer.
23 Citations
7 Claims
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1. An adaptive control circuit for producing an output circuit signal at a time subsequent to an initial event as determined by an optimizing control system, comprising:
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(a) multi-stage delay line means having a plurality of output taps emanating from predetermined stages thereof and having an input terminal for receiving a pulse indicative of said initial event; (b) means for propagating said pulse through said delay line at a desired rate; (c) code responsive means coupled to said plurality of output taps for selecting only one of said taps at a time and delivering the signal thereon to a utilization device; (d) bi-directional counting means having its output coupled to said code responsive means; and (e) means for incrementing or decrementing said counting means by a predetermined count value as determined by said optimizing control system. - View Dependent Claims (2)
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7. An adaptive control circuit for producing an output control signal at a time subsequent to an initial event as determined by an optimizing control system, comprising:
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(a) multi-stage delay line means having a plurality of output taps emanating from predetermined stages thereof and having an input terminal for receiving a pulse indicative of said initial event; (b) means for propagating said pulse through said delay line at a desired rate; (c) code responsive means coupled to said plurality of output taps for selecting only one of said taps at a time and delivering the signal thereon to a utilization device; (d) bi-directional counting means having its output coupled to said code responsive means; (e) means for incrementing or decrementing said counting means by a predetermined count value as determined by said optimizing control system; and (f) a limit control means coupled to the output of said bi-directional counting means for preventing the count in said counting means from exceeding in either direction predetermined upper and lower limits. - View Dependent Claims (3, 4, 5, 6)
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Specification