Title:
内燃機関の着火遅れ期間推定装置及び着火時期制御装置
Document Type and Number:
Japanese Patent JP5392418
Kind Code:
B2
Abstract:
A period of time from a point in time at which pilot injection is executed until an equivalence ratio in fuel spray, after exceeding a combustible equivalence ratio, falls below the combustible equivalence ratio is calculated as a physical ignition delay period. A chemical ignition delay period is calculated from the temperature and pressure inside a combustion chamber at a point in time at which the equivalence ratio in the fuel spray reached the combustible equivalence ratio. A total ignition delay period is calculated from the above-calculated ignition delay periods. The oxygen concentration and temperature inside the combustion chamber are adjusted such that the total ignition delay period matches a target ignition delay period.
Inventors:
Ryo Hasegawa
Application Number:
JP2012537517A
Publication Date:
January 22, 2014
Filing Date:
October 06, 2010
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D45/00; F02D13/02; F02D21/08; F02D41/04; F02D41/38; F02M25/07
Domestic Patent References:
| JP2008101591A | ||||
| JP2009299490A | ||||
| JP2003097329A | ||||
| JP2010190119A |
Attorney, Agent or Firm:
Patent Business Corporation Ark Patent Office