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:
Jul. 16, 2013

Filed:

Jun. 29, 2010
Applicants:

Sinobu Ochiai, Wako, JP;

Yasunori Ohyama, Wako, JP;

Ayao Kawakami, Wako, JP;

Hiroshi Koan, Wako, JP;

Inventors:

Sinobu Ochiai, Wako, JP;

Yasunori Ohyama, Wako, JP;

Ayao Kawakami, Wako, JP;

Hiroshi Koan, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 41/12 (2006.01); F02D 9/02 (2006.01); B60T 7/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

A control system for an internal combustion engine having a plurality of cylinders including first and second cylinder groups. The first and second intake systems correspond respectively to the first and second cylinder groups, and first and second throttle valves are provided respectively in the first and second intake systems. An output of the engine is reduced upon deceleration of a vehicle driven by the engine. A pressure parameter indicative of an assisting force generated by a brake booster is detected. An intake negative pressure is supplied to the brake booster from the first and second intake systems. One of the first and second throttle valves is opened to increase the engine output when the pressure parameter is equal to or less than a first threshold value which indicates that the assisting force of the brake booster has decreased.


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