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:
Mar. 28, 2006
Filed:
Feb. 16, 2005
Koji Hata, Kariya, JP;
Ken Uchiyama, Toyoake, JP;
Koji Hata, Kariya, JP;
Ken Uchiyama, Toyoake, JP;
Denso Corporation, Kariya, JP;
Abstract
In an electronic throttle controller, when an intake air amount detected by an air flow meter is smaller than a stall prevention judging-purpose each cylinder intake amount, a stall prevention adding amount 'large' is added to intake throttle opening degree deviation, a DC motor is driven while neglecting a feedback control operation, and an opening degree of the intake throttle is controlled to be further opened from an actual preceding control position. When an execution number of the engine stop avoiding control is larger than a predetermined number within a predetermined period, an abnormal condition of a throttle position sensor is detected, and thus, energizing operation of the DC motor is stopped. The abnormal condition malfunction of the throttle position sensor can be firmly detected while an engine stall is avoided.