Title:
CONTROLLER FOR INTERNAL COMBUSTION ENGINE HAVING ELECTRONICALLY CONTROLLED THROTTLE
Document Type and Number:
Japanese Patent JP3303274
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve the setting accuracy of a target quantity of air corresponding to a target torque and improve the controlling accuracy of the opening angle of a throttle and an air-fuel ratio.
SOLUTION: On the basis of a target torque tTe (S1) and the number of revolutions of an engine Ne, a target quantity of fuel tQf (S2) and a target air-fuel ratio tA/F (S3) are set. Based on the target fuel quantity tQf and the target air-fuel ratio tA/ F, a target quantity of air tQa is set (S4). Meantime, a quantity of air tEGRO2 contained in the exhaust reflux, which is to be supplied for combustion is calculated and the obtained air quantity tEGRO2 is subtracted from the target air quantity tQa for correction (S5). Form the subtraction-corrected target quantity of air tQa1, a target opening area tAa is obtained (S6) on the basis of which a target opening angle tTVO of a throttle valve is set (S7).
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Inventors:
Kenichi Machida
Masayuki Yasuoka
Masayuki Yasuoka
Application Number:
JP10589096A
Publication Date:
July 15, 2002
Filing Date:
April 25, 1996
Export Citation:
Assignee:
Unisia Jecs Co., Ltd.
Nissan Motor Co., Ltd
Nissan Motor Co., Ltd
International Classes:
F02M25/07; F02D9/02; F02D21/08; F02D41/02; F02D41/04; F02D41/14; (IPC1-7): F02D41/02; F02D9/02; F02D41/04; F02D41/14; F02M25/07
Domestic Patent References:
| JP61163A | ||||
| JP835440A | ||||
| JP865813A | ||||
| JP84574A | ||||
| JP4103865A |
Attorney, Agent or Firm:
Fujio Sasashima