Internal-combustion engines – Engine speed regulator – Having condition responsive means with engine being part of...
Patent
1980-07-03
1982-05-11
Argenbright, Tony M.
Internal-combustion engines
Engine speed regulator
Having condition responsive means with engine being part of...
180179, 36443107, B60K 3100, F02D 1110
Patent
active
043287760
ABSTRACT:
A vehicle speed control system includes a first generator for producing an operation signal upon closure of a set switch at a desired vehicle speed and receipt of a timing signal from a second generator responsive to the actual vehicle speed, the operation signal disappearing in response to one of the subsequent timing signals. A first calculator calculates a first time difference between predetermined and instant time periods respectively defined by the desired and actual vehicle speeds, and a second calculator calculates a second time difference between the respective instant time periods. A third generator produces a correction signal defined by the second time difference during generation of the operation signal and produces another correction signal defined by the sum or a difference of the time differences in relation to identical or opposite signs of the time differences after disappearance of the operation signal. A distribution circuit is responsive to one of the correction signals to produce an output signal relative to the sign of the second time difference such that an actuator controls an engine throttle opening angle.
REFERENCES:
patent: 3820624 (1974-06-01), Sakakibara
patent: 3869019 (1975-03-01), Cardani
patent: 3885137 (1975-05-01), Ooya et al.
patent: 4224907 (1980-09-01), Lefeuvre et al.
patent: 4250854 (1981-02-01), Matsui et al.
Kuno Akira
Matsui Takeshi
Shinoda Yoshio
Argenbright Tony M.
Nippon Soken Inc.
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