Title:
【発明の名称】内燃機関の燃料噴射制御装置
Document Type and Number:
Japanese Patent JP3355287
Kind Code:
B2
Abstract:
An intake air temperature TC of a cylinder is estimated from an equation of TC=TA+HEXGIN (TA-TA)+273 DEG K on the basis of a cylinder heat-transfer coefficient HEXGIN, an intake air temperature TA and a cooling water temperature TW. An operation of a first correction coefficient KTA is carried out on the basis of an equation KTA=TTC/TC with the use of an intake air temperature TTC estimated under reference environment. Next, an operation of a finally correction coefficient KTAHOS is carried out on the basis of an equation of KTAHOS=KTAx[1.0-{(KTA-1.0)xKCHOS}] with the use of an air density fine adjustment coefficient KCHOS, and then, by taking advantage of the finally correction coefficient KTAHOS, a fuel injection quantity based on an intake air pressure is corrected.
Inventors:
Masanobu Ohsaki
Application Number:
JP10475797A
Publication Date:
December 09, 2002
Filing Date:
April 22, 1997
Export Citation:
Assignee:
Hitachi Unisia Automotive Co., Ltd.
International Classes:
F02D41/04; F02D41/18; F02D45/00; (IPC1-7): F02D41/04; F02D45/00
Domestic Patent References:
| JP357861A | ||||
| JP227127A |
Attorney, Agent or Firm:
Fujio Sasashima