Internal-combustion engines – Engine speed regulator – Open loop condition responsive
Patent
1991-12-26
1992-11-17
Nelli, Raymond A.
Internal-combustion engines
Engine speed regulator
Open loop condition responsive
123361, 123399, F02D 700
Patent
active
051634023
ABSTRACT:
A throttle control apparatus includes an accelerator operation mechanism, a throttle shaft, a driving source, an electromagnetic clutch mechanism, driving control means, accelerator operational amount detecting means, accelerator abnormality detecting means, throttle valve opening amount detecting means, throttle abnormality detecting means, valve abnormality detecting means and clutch control means. The accelerator abnormality detecting means judge the abnormality of the accelerator operational amount detecting means and the throttle abnormality detecting means judge the abnormality of the throttle valve opening amount detecting means. Furthermore, the valve abnormality detecting means judge the operation of the throttle control as abnormality when the amount of the throttle valve opening is more than a prescribed value under the condition which the operational amount of the accelerator operation amount is less than a prescribed value. As a result of abnormality judgments of these three kinds, when at least one of them is judged as abnormality, the electromagnetic clutch mechanism is driven by the clutch control means so as to separate the driving source from the throttle shaft.
REFERENCES:
patent: 4120373 (1978-10-01), Fleischer
patent: 4424785 (1984-01-01), Ishida et al.
patent: 4445603 (1984-05-01), Filsinger
patent: 4523565 (1985-06-01), Omitsa
patent: 5048484 (1991-09-01), Terazawa et al.
Akita Tokihiko
Fujikawa Toru
Oda Yukihisa
Shimizu Masaru
Taguchi Yoshinori
Aisin Seiki Kabushiki Kaisha
Nelli Raymond A.
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