Title:
INTERNAL COMBUSTION ENGINE CONTROL DEVICE AND METHOD
Document Type and Number:
WIPO Patent Application WO/2014/046059
Kind Code:
A1
Abstract:
Provided is an internal combustion engine having a variable compression ratio mechanism, wherein the occurrence of knocking during deceleration is suppressed. When it is determined that a target compression ratio of the variable compression ratio mechanism is at least a threshold PRSL during deceleration, an air bypass valve that is interposed in a channel that bypasses the compressor of an exhaust turbo charger is opened. Intake air from the throttle valve upstream region (between a compressor and a throttle valve) is returned to the compressor upstream region thereby reducing the intake air pressure in the throttle valve upstream region, and by reducing compression pressure in a cylinder, the occurrence of knocking is suppressed.
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Inventors:
KURASHIMA YOSHIKUNI (JP)
Application Number:
PCT/JP2013/074900
Publication Date:
March 27, 2014
Filing Date:
September 13, 2013
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F02D15/02; F02B27/02; F02D23/00
Foreign References:
| JP2005155507A | 2005-06-16 | |||
| JPH07229431A | 1995-08-29 | |||
| JP2004197583A | 2004-07-15 |
Attorney, Agent or Firm:
SASAJIMA, Fujio (JP)
Sasajima Wealth 2 male (JP)
Sasajima Wealth 2 male (JP)
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