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. 08, 2006
Filed:
Jun. 17, 2004
Takehiro Katakura, Wako, JP;
Kenji Nakajima, Wako, JP;
Hiroshi Terayama, Wako, JP;
Shinichi Nishio, Wako, JP;
Yoshiyuki Nagayama, Wako, JP;
Hiroyuki Kushiyama, Wako, JP;
Takehiro Katakura, Wako, JP;
Kenji Nakajima, Wako, JP;
Hiroshi Terayama, Wako, JP;
Shinichi Nishio, Wako, JP;
Yoshiyuki Nagayama, Wako, JP;
Hiroyuki Kushiyama, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
In a system for controlling an internal combustion engine having a plurality of cylinders and connected to the automatic transmission and mounted on a vehicle and the operation of the engine is switched between full-cylinder operation during which all of the cylinders are operative and cutoff-cylinder operation during which some of the cylinders are non-operative, based on at least the load of the engine, a gradient of road on which the vehicle runs is estimated and the cutoff-cylinder operation is prohibited when the estimated gradient is equal to or greater than a threshold value. With this, it becomes possible to generate sufficient deceleration, when the vehicle runs a downhill during cutoff-cylinder operation, while ensuring to prevent the operator to feel excessive acceleration.