To quickly activate an electrically heated type catalyst as well as to stabilize engine rotation at the time of cold start by properly controlling the intake air quantity of an engine equipped with the electrically heated type catalyst.
An electric load correction item ILIAD is calculated (S17), according to the field current IFLD in an alternator 21 (S1), whether an air conditioner is in operation or not (S2), whether the shift position of an automatic transmission is in drive range or not (S5), whether a power steering is in operation or not (S8), whether an electrically heated type catalyst 16 is in operation or not (S11), whether other electric devices such as head light etc., are in operation or not (S14). By means of this electric load correction item ILOAD, the control current ICMD of a solenoid valve for controlling an intake air quantity is corrected.
SHIMAZAKI YUICHI
KATO HIROAKI
NAKAYAMA TAKAYOSHI
SAITO AKIHISA
FURUMOTO HIDEO
JPH06101459A | 1994-04-12 | |||
JPH0451659A | 1992-02-20 |
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