Title:
CONTROL DEVICE OF DIESEL ENGINE WITH SUPERCHARGER, AND CONTROL METHOD FOR THE SAME
Document Type and Number:
Japanese Patent JP2017089419
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a control device of a diesel engine with a supercharger, which can carry out combustion regeneration of a diesel particulate filter, while preventing deterioration of fuel economy.SOLUTION: A control device of a diesel engine with a supercharger, comprises: a supercharging pressure control part 110 which controls a supercharging pressure by driving at least a low pressure stage turbine between a high pressure stage turbine and the low pressure stage turbine according to an operation state of the diesel engine with the supercharger; an operation state determination part 140 determining whether or not it is in a particulate filter regeneration time in which combustion regeneration is carried out on a diesel particulate filter provided in an exhaust path downstream of the low pressure stage turbine; and a control instruction part 150 which when it is in the particulate filter regeneration time, instructs the supercharging pressure control part 110 to keep a high pressure stage waste gate valve in the open state and control a supercharging pressure according to the opening of a low pressure stage waste valve.SELECTED DRAWING: Figure 2
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Inventors:
TAKEDA KEIICHI
Application Number:
JP2015217239A
Publication Date:
May 25, 2017
Filing Date:
November 05, 2015
Export Citation:
Assignee:
BOSCH GMBH ROBERT
International Classes:
F02B37/18; F01N3/023; F01N3/033; F02B37/00
Attorney, Agent or Firm:
Oba Reiji
Hajime Takahashi
Hajime Takahashi