Title:
スパーク点火直噴内燃機関の排ガス温度を上昇させる方法
Document Type and Number:
Japanese Patent JP4099396
Kind Code:
B2
Abstract:
The invention relates to a method for at least temporarily increasing an exhaust gas temperature of a spark-ignition, direction injection internal combustion engine ( 10 ) involving at least one measure, which is executed by the engine, whereby this at least one measure consists of a spark retarding and of a multiple injection (ME). During the multiple injection (ME), at least two fuel injections into the cylinder ( 12 ) are carried out within an induction cycle and compression cycle of a cylinder ( 12 ) of the internal combustion engine ( 10 ), and the latest of these injections ensues during a compression cycle of the cylinder ( 12 ). The invention also relates to the utilization of the method. According to the invention, a control end of an injection angle (alphaEE) of the latest injection is at least temporarily set to between 80 and 10° before an upper ignition dead center (ZOT) when operating with multiple injection and/or an ignition angle (alphaZ) is at least temporarily set to between 10 and 45° after the upper ignition dead center (ZOT) also when operating with multiple injection. A combination of both measures enables a dramatic acceleration of the warming up of a catalytic converter ( 16 ) that is connected downstream from the internal combustion engine ( 10 ).
Inventors:
Pot, Eckhart
Bray, Eric
Philip, Chi
Zilmer, Michael
Bray, Eric
Philip, Chi
Zilmer, Michael
Application Number:
JP2002573514A
Publication Date:
June 11, 2008
Filing Date:
February 22, 2002
Export Citation:
Assignee:
Volkswagen Akchen Gesell shaft
International Classes:
F02D41/34; F01N3/20; F02P5/15; F01N3/24; F02B17/00; F02B23/00; F02B23/10; F02D41/02; F02D41/04; F02D41/06; F02D41/30; F02D41/40; F02D43/00; F02D45/00; F02B75/12
Domestic Patent References:
| JP2000045844A |
Attorney, Agent or Firm:
Hajime Tsukuni
Fumio Shinoda
Koshiro Tsukuda
Fumio Shinoda
Koshiro Tsukuda