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:
Aug. 25, 2015
Filed:
Feb. 03, 2011
Masaaki Tagawa, Shizuoka, JP;
Yoshiki Ito, Shizuoka, JP;
Masakazu Saito, Shizuoka, JP;
Hitoshi Ohkuma, Shizuoka, JP;
Yukihiro Hosoe, Shizuoka, JP;
Masaaki Tagawa, Shizuoka, JP;
Yoshiki Ito, Shizuoka, JP;
Masakazu Saito, Shizuoka, JP;
Hitoshi Ohkuma, Shizuoka, JP;
Yukihiro Hosoe, Shizuoka, JP;
SUZUKI MOTOR CORPORATION, Shizuoka, JP;
Abstract
An engine, a first motor generator and a second motor generator are controlled by calculating an engine power target from a driving power target required for a vehicle, and finding a target engine operating point expressed by a set of an engine speed target and an engine torque target on a target operating line determined in response to the engine power target. When the found target engine operating point is different from the previously found one, a change in engine speed target is limited to a predetermined amount of change and the engine torque target of the set is reset versus an engine speed target involving the limited change based on the determined target operating line. Consequently, the engine power target and thus the driving power target are ensured so as to restrain or prevent sudden or frequent changes in engine speed with the efficiency kept high.