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Title:
CONTROL DEVICE OF ENGINE
Document Type and Number:
Japanese Patent JP2016050510
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To further surely avoid occurrence of a torque shock at changeover to reduced-cylinder operation from full-cylinder operation.SOLUTION: When there is a changeover request to reduced-cylinder operation from full-cylinder operation, an opening 34a of a throttle valve is changed so that an air quantity sucked into each cylinder 2A to 2D becomes an air quantity at the reduced-cylinder operation which is larger than an air quantity at normal full-cylinder operation, performs preparation control for changing the ignition timing of ignition means to timing on a retard angle side rather than ignition timing at the normal full-cylinder operation so as to cancel an increase of engine torque which occurs accompanied with the opening change of the throttle valve, and starts the reduced-cylinder operation after the finish of the preparation control.SELECTED DRAWING: Figure 7

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Inventors:
HAIZAKI YUKIO
MATOBA YASUNORI
YAMAGUCHI NAOHIRO
WATANABE KAZUTOYO
SAIKI AKIO
Application Number:
JP2014175525A
Publication Date:
April 11, 2016
Filing Date:
August 29, 2014
Export Citation:
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Assignee:
MAZDA MOTOR
International Classes:
F02D17/02; F02D9/02; F02D13/06; F02D41/02; F02D43/00; F02P5/15
Domestic Patent References:
JPH05332172A1993-12-14
JPH11336575A1999-12-07
JP2009162185A2009-07-23
JP2007245852A2007-09-27
JP2004316596A2004-11-11
JP2010190231A2010-09-02
Attorney, Agent or Firm:
Etsushi Kotani
Masataka Otani
Ko Sato



 
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