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:
Jun. 27, 2000
Filed:
May. 07, 1998
Applicant:
Inventor:
Toru Iwata, Yokohama, JP;
Assignee:
Nissan Motor Co., Ltd., Yokohama, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60K / ;
U.S. Cl.
CPC ...
180197 ; 303145 ; 701 85 ; 701 86 ;
Abstract
In a lean burn engine for a vehicle wherein an ordinary air-fuel ratio and a lean air-fuel ratio are selectively applied, an engine output is reduced when a slip of a drive wheel is detected. By controlling the air-fuel ratio when the engine output is reduced to an ordinary air-fuel ratio, the engine is prevented from becoming unstable even when output is reduced at a lean air -fuel ratio. Preferably, when the engine output reduction has terminated, the air-fuel ratio is returned to the air-fuel ratio prior to the output reduction.