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. 13, 2006
Filed:
Aug. 04, 2004
Applicants:
Hiroyuki Nishizawa, Tajimi, JP;
Masataka Osawa, Nagoya, JP;
Inventors:
Hiroyuki Nishizawa, Tajimi, JP;
Masataka Osawa, Nagoya, JP;
Assignee:
Kabushiki Kaisha Toyota Chuo Kenkyusho, Aichi-gun, JP;
Primary Examiner:
Int. Cl.
CPC ...
B60K 1/02 (2006.01); B60W 10/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An engine system includes an engine, continuously variable transmission and a controller. The engine has an engine shaft and plural cylinders. A number of activated cylinders among the plural cylinders is variable. The continuously variable transmission is configured to transmit a rotation of the engine shaft to wheels of a vehicle at a transmission ratio which is continuously variable. The controller is configured to control the engine to change the number of activated cylinders keeping an engine power generated by the engine to be substantially constant.