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Title:
CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2016037923
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine capable of enhancing reliability when detecting a stack of a fuel pressure sensor.SOLUTION: An internal combustion engine includes a port injection valve, a storage part for storing fuel for injection from the port injection valve, and a feed pump for pressurizing and feeding the fuel to the storage part. An engine ECU diagnoses stack abnormality of a fuel pressure sensor based on a detection value of the fuel pressure sensor in first processing and second processing. The first processing is a process for setting a target pressure of the fuel in the storage part to a first pressure (530 [kPa]) and detecting the pressure with the fuel pressure sensor. The second processing is a process for setting a target pressure of the fuel of a low pressure delivery pipe to a second pressure (400 [kPa]) lower than the first pressure and detecting the pressure with the fuel pressor sensor. The engine ECU executes the first processing in accordance with a start signal for starting the internal combustion engine, and executes the second processing after the first processing.SELECTED DRAWING: Figure 4

Inventors:
NAGAKURA KEISUKE
SASAKI TOSHITAKE
MIYAJI KAZUYA
SUZUKI TAKASHI
Application Number:
JP2014162538A
Publication Date:
March 22, 2016
Filing Date:
August 08, 2014
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
F02D41/22; F02D29/02; F02D41/04; F02D41/34; F02D45/00; F02M37/00; F02M37/08
Domestic Patent References:
JP2007138774A2007-06-07
JP2001173507A2001-06-26
JP2001336460A2001-12-07
JP2012087652A2012-05-10
JP2007138774A2007-06-07
JP2001173507A2001-06-26
JP2001336460A2001-12-07
JP2012087652A2012-05-10
Foreign References:
US20020035866A12002-03-28
US20020035866A12002-03-28
Attorney, Agent or Firm:
Fukami patent office