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Title:
START DEVICE FOR ENGINE
Document Type and Number:
Japanese Patent JP2009036089
Kind Code:
A
Abstract:

To effectively suppress an increase of engine vibration at a start while securing the favorable starting performance of an engine.

Cranking by a motor is carried out and the compression pressure of the engine is reduced by operating a compression pressure reduction means at an engine start (S2, S3). Stop engine speed NEOFF at which the operation of a compression pressure reduction means is stopped is calculated based on rotary displacement around a crankshaft of the engine or a parameter relating to the displacement (S5), and the operation of the compression pressure reduction means is stopped when engine speed NE reaches the stop engine speed NEOFF (S6, S7).


Inventors:
Suzuki, Hiroyuki
Shiino, Shunichi
Tatara, Tomohiko
Application Number:
JP2007000200961
Publication Date:
February 19, 2009
Filing Date:
August 01, 2007
Export Citation:
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Assignee:
NISSAN MOTOR CO LTD
International Classes:
F02D15/00; F02D29/02; F02N11/08; F02N99/00
Domestic Patent References:
JP2006242089A
JP2007045325A
JP2004346834A
JP2006266152A
JP2007131103A
JPH08135546A
JP2002089308A
Attorney, Agent or Firm:
後藤 政喜
藤井 正弘
三田 康成
飯田 雅昭



 
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