Internal-combustion engines – Engine speed regulator – Idle speed control
Patent
1987-04-14
1991-03-19
Argenbright, Tony M.
Internal-combustion engines
Engine speed regulator
Idle speed control
123418, F02P 515
Patent
active
050001477
ABSTRACT:
A system for regulating the idling speed of an internal combustion engine comprises a circuit for generating the ignition spark, when the engine is idling, upon expiry of a predetermined time delay from an initial crankshaft position, which circuit is enabled only after the crankshaft has reached a first limiting position, and enforced when the crankshaft reaches a second limiting position if the time delay has not expired. The spark timing therefore varies smoothly with speed between the first and second limiting positions of the crankshaft, but being retarded to the second limiting position for large over-speed errors or advanced to the first limiting position for large under-speed errors. It also reverts to the second limiting position for speeds below half normal idling speeds (cranking speeds). The time delay may be controlled in response to engine operating variables, for example using a closed-loop idling speed control of conventional type and preferably with phase advance compensation to further improve the dynamic response of the idling speed regulating system.
REFERENCES:
patent: 4112895 (1978-09-01), Habert
patent: 4262644 (1981-04-01), Walker et al.
patent: 4328775 (1982-05-01), Ironside
patent: 4338899 (1982-07-01), Geiger et al.
patent: 4446832 (1984-05-01), Matsumura et al.
patent: 4506639 (1985-03-01), Murakami et al.
patent: 4552109 (1985-11-01), Boccadoro et al.
patent: 4572127 (1986-02-01), Morris
Argenbright Tony M.
Lucas Industries Public Limited Company
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