Title:
Internal combustion engine control device and control method
Document Type and Number:
Japanese Patent JP6295518
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a control device for protecting a chain having a tension variation increased when a fuel pressure P in a common rail abnormally rises.SOLUTION: An internal combustion engine control device comprises: a port injecting fuel injection valve for injecting a fuel into a suction port; and an inter-cylinder fuel injection valve for injecting a high pressure fuel in a common rail into a combustion chamber. The fuel pressure P in the common rail is read in (at S1). If the fuel pressure P exceeds an upper limit fuel pressure Pmax (at S3), and if a difference ΔP from a target fuel pressure tP exceeds a threshold value ΔPmax (at S4), an abnormal rise of the fuel pressure P is determined to maximize the sharing ratio of the inter-cylinder fuel injection value (at S6). As a result, the injection quantity of the high pressure fuel is increased to lower the fuel pressure P quickly.
Inventors:
Tadaki Mano
Application Number:
JP2013105736A
Publication Date:
March 20, 2018
Filing Date:
May 20, 2013
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02D41/34; F02D15/02; F02D43/00; F02M39/00; F02M63/00
Domestic Patent References:
| JP2013072380A | ||||
| JP2003322034A | ||||
| JP2007278304A | ||||
| JP2010132085A | ||||
| JP2006057594A | ||||
| JP11013502A | ||||
| JP2012215160A | ||||
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Attorney, Agent or Firm:
Hiromichi Kobayashi
Tomioka Kiyoshi
Tomioka Kiyoshi