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.

Date of Patent:
Dec. 18, 2007

Filed:

Feb. 20, 2004
Applicants:

Naoto Sen, Wako, JP;

Tadayoshi Okada, Wako, JP;

Akira Sugiyama, Wako, JP;

Kenichi Nishida, Wako, JP;

Yasuhiko Tomokuni, Wako, JP;

Mahito Ishiyama, Wako, JP;

Kazuo Yamashita, Wako, JP;

Inventors:

Naoto Sen, Wako, JP;

Tadayoshi Okada, Wako, JP;

Akira Sugiyama, Wako, JP;

Kenichi Nishida, Wako, JP;

Yasuhiko Tomokuni, Wako, JP;

Mahito Ishiyama, Wako, JP;

Kazuo Yamashita, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60K 31/00 (2006.01); F02D 13/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a control system for an internal combustion engine having a plurality of cylinders and mounted on a vehicle, in which the engine operation is switched based on the throttle opening between a full-cylinder operation in which all of the cylinders are operative and a cut-off cylinder operation in which some of the cylinders are inoperative, and a running control including at least a cruise control in which the vehicle runs at a desired vehicle velocity is conducted, the engine operation is switched to the full-cylinder operation when it is determined that deceleration is required in the running control, so as to increase pumping loss (engine loss). With this, it becomes possible to generate the deceleration sufficiently as desired, when, for example, the vehicle descends a downhill.


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