Control system for internal combustion engines

Details Control system for internal combustion engines Control system for internal combustion engines

1996-06-04

1997-03-11

Miller, Carl S.

Internal-combustion engines

Engine speed regulator

Responsive to deceleration mode

123520, F02D 906, F02M 3302

Patent

active

056091354

ABSTRACT:
A control system for an internal combustion engine determines whether or not at least one of fuel cut which is cutting-off of supply of fuel to the engine and decreased fuel supply which is supplying of fuel to the engine in a decreased amount for deceleration of the engine has been started, and whether or not purging of evaporative fuel into an intake passage of the engine by an evaporative emission control system of the engine was carried out within a first predetermined time period before the at least one of the fuel cut and the fuel supply reduction for deceleration of the engine has been stated. The amount of auxiliary air supplied to the engine via a secondary intake air passage bypassing a throttle valve arranged in an intake passage of the engine is increased over a second predetermined time period after the at least one of the fuel cut and the decreased fuel supply for deceleration of the engine has been started.

REFERENCES:
patent: 4630581 (1986-12-01), Shibata
patent: 5005550 (1991-04-01), Bugin
patent: 5216991 (1993-06-01), Iida
patent: 5272873 (1993-12-01), Hamazaki
patent: 5469832 (1995-11-01), Nemoto
patent: 5535719 (1996-07-01), Morikawa

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