Title:
CONTROL DEVICE OF SUPERCHARGED ENGINE
Document Type and Number:
Japanese Patent JP2016153621
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress the generation of a backflow of air in a partial intake passage resulting from a reduced-cylinder operation, and to perform the reduced-cylinder operation in a wide operation range, in a multi-cylinder supercharged engine having a plurality of intake passages in which compressors are arranged, respectively, and a common intake passage which is formed of the aggregation of the plurality of intake passages.SOLUTION: When a reduced-cylinder operation is performed, a throttle located at a downstream side of a compressor which is driven by a turbine provided in an exhaust passage in which an exhaust gas of a cylinder group being an object of the reduced-cylinder operation flows is fully closed. In addition to this, at least one cylinder which constitutes the cylinder group being the object of the reduced-cylinder operation is operated at a fuel injection amount which is smaller than that of the cylinder constituting a cylinder group other than the cylinder group being the object of the reduced-cylinder operation, and by raising a rotational speed of the compressor through the operation, the pressure of the throttle at an upstream side is controlled to a magnitude of the pressure of a downstream side or larger.SELECTED DRAWING: Figure 3
Inventors:
SAITO YUSUKE
ADACHI NORIYASU
EIRAKU REI
ADACHI NORIYASU
EIRAKU REI
Application Number:
JP2015031915A
Publication Date:
August 25, 2016
Filing Date:
February 20, 2015
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F02D23/00; F02B37/00; F02B37/007; F02B37/02; F02B37/16; F02D13/06; F02D17/02; F02D23/02; F02D41/02; F02D45/00
Domestic Patent References:
JP2009250068A | 2009-10-29 | |||
JP2005291020A | 2005-10-20 | |||
JP2005291019A | 2005-10-20 | |||
JPS6054738U | 1985-04-17 | |||
JPS6065237A | 1985-04-15 |
Foreign References:
US20110232279A1 | 2011-09-29 |
Attorney, Agent or Firm:
Hideki Takahashi
Mamoru Takada
Hidekazu Onishi
Mamoru Takada
Hidekazu Onishi
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