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:
May. 04, 1999
Filed:
Aug. 06, 1997
Applicant:
Inventor:
Taro Tabata, Kariya, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D / ;
U.S. Cl.
CPC ...
477111 ; 477107 ; 123399 ; 701 54 ; 701 99 ;
Abstract
To suppress vehicle shock upon acceleration or deceleration, an upper guard value (KGUARD) for throttle rate of change is calculated based on parameters indicative of engine and torque transmission operating conditions. A target throttle sensor voltage change (DVVTA) is calculated based on accelerator depression and compared with the upper guard value KGUARD. If DVTTA>KGUARD, the final target throttle sensor voltage for the present cycle is determined by adding the upper guard value KGUARD to the previously calculated final throttle sensor voltage. If DVVTA.ltoreq.KGUARD, the target throttle sensor voltage VTTA is used as the final target throttle sensor voltage.