发明名称 FUEL INJECTION CONTROL DEVICE FOR ENGINE
摘要 PROBLEM TO BE SOLVED: To switch a value of a reflection proportion coefficient of an accelerating time correcting pulse width of fuel injection with an acceleration time and a deceleration time so as to obtain a suitable correcting pulse at all times by judging an increase/ decrease rate of the correcting pulse width, calculating a correcting coefficient on the basis of the judgment, and correcting the correcting pulse width on the basis of the correcting coefficient. SOLUTION: An injection pulse width calculating means 308 in a fuel injection control device in an engine, is provided with an acceleration time correcting pulse width judging means 409 for judging whether a correcting pulse width calculating value calculated by a correcting pulse width calculating means 407 is corrected to an increase rate or corrected to a decrease rate. The calculated value of the acceleration time correcting pulse width is corrected from a water temperature correcting coefficient calculated by each calculating means 410, 412, 413, a rotating speed correcting coefficient, and a coefficient for carrying out correction after fuel cut, by correcting pulse width correcting means 408. When the correcting coefficient is calculated, in the case where decrease correction is judged, the correcting coefficient is set to a value smaller than the case where the correcting coefficient is judged as increase correction, and the correcting coefficient is calculated on the basis of a correcting table which is set beforehand.
申请公布号 JP2000018066(A) 申请公布日期 2000.01.18
申请号 JP19980190470 申请日期 1998.07.06
申请人 HITACHI LTD;HITACHI CAR ENG CO LTD 发明人 NANAO YUICHIRO;ISHIKAWA HIROTO
分类号 F02D41/04;F02D41/10;F02D41/20;F02D41/34;(IPC1-7):F02D41/10 主分类号 F02D41/04
代理机构 代理人
主权项
地址