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:
Sep. 13, 2022
Filed:
Jan. 23, 2018
Nissan Motor Co., Ltd., Yokohama, JP;
Kengo Yonekura, Kanagawa, JP;
Hirofumi Tsuchida, Kanagawa, JP;
NISSAN MOTOR CO., LTD., Yokohama, JP;
Abstract
During a transient period, the opening degree of a throttle valve (throttle opening degree) is varied from a steady-period target throttle opening degree in a region Atoward a valve closing side by a predetermined amount ΔP, and is thereafter controlled so as to become a steady-period target throttle opening degree in the region A. The transient period is a transient period in which the operation state is shifted from a region Bin which an air-fuel ratio in a supercharged state becomes a predetermined lean air-fuel ratio to a region Ain which the air-fuel ratio in a non-supercharged state becomes a predetermined rich air-fuel ratio richer than the lean air-fuel ratio. In this transient period, by reducing the air amount in a cylinder, the combustion torque of an internal combustion engine is suppressed, and consequently; a torque overshoot can be suppressed.