Means for optimizing fuel economy in an internal combustion engi

Details Means for optimizing fuel economy in an internal combustion engi Means for optimizing fuel economy in an internal combustion engi

1978-02-28

1980-03-04

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123 32EA, 123 32EE, F02P 504

Patent

active

041911466

ABSTRACT:
A self-adaptive system for optimizing ignition timing in an internal combustion engine wherein a signal representing engine manifold absolute pressure is multiplied by a signal representing engine speed to provide a product signal. The product signal is differentiated and applied as the numerator in a divider. The quotient output of the divider is fed back to the divider input as the denominator. The quotient output of the divider is further integrated and the integrated quotient is used as a command signal for setting the spark timing.

REFERENCES:
patent: 2687612 (1954-08-01), Anderson et al.
patent: 3897766 (1975-08-01), Pratt, Jr. et al.
patent: 4009699 (1977-03-01), Hetzler et al.
patent: 4026251 (1977-05-01), Schweitzer et al.
patent: 4064846 (1977-12-01), Latsch et al.
patent: 4073269 (1978-02-01), Herth et al.
patent: 4098244 (1978-07-01), Sumiyoshi et al.
Apparatus for varying engine spark timing to maximize induction _manifold vacuum; Research Disclosure No. 146, pp. 42-43; June 1976.

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