The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 17, 1992
Filed:
Dec. 26, 1991
Yoshinori Taguchi, Kariya, JP;
Yukihisa Oda, Chiryu, JP;
Tokihiko Akita, Toyoake, JP;
Masaru Shimizu, Toyota, JP;
Toru Fujikawa, Obu, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
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.