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. 18, 2025
Filed:
Jan. 28, 2021
Nissan Motor Co., Ltd., Yokohama, JP;
Katsunori Satou, Kanagawa, JP;
NISSAN MOTOR CO., LTD., Yokohama, JP;
Abstract
An internal combustion engine is connected to a transmission via a torque converter. The transmission includes a continuously variable transmission mechanism and a clutch. When the transmission is switched from the P range to the D range, a rotation speed of the internal combustion engine decreases with engagement of the clutch. In order to suppress engine stalling in cold climates, electric power generation of an alternator is stopped to reduce an electric power generation load when a speed difference between the rotation speed of the engine and an input rotation speed of the transmission becomes greater than or equal to a predetermined speed difference value. The electric power generation is restarted after a predetermined time period has elapsed since the input rotation speed of the transmission became lower than or equal to a second predetermined rotation speed value.