Exhaust gas recirculation valve control apparatus

Details Exhaust gas recirculation valve control apparatus Exhaust gas recirculation valve control apparatus

1995-09-20

1996-12-03

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

25112911, 318696, F02M 2507, H02P 800

Patent

active

055797431

ABSTRACT:
An internal combustion engine exhaust gas recirculation valve control apparatus which, during exhaust gas recirculation (EGR) control, can correct positional error due to stepping out of a stepping motor actuating an exhaust gas recirculation valve and effect EGR control with increased accuracy. A controller initializes the stepping motor during EGR control when the target opening degree of the exhaust gas recirculation valve becomes `fully closed` by driving the stepping motor to cause a valve body to abut a valve seat.

REFERENCES:
patent: 4391244 (1983-07-01), Kobashi et al.
patent: 4409948 (1983-10-01), Hasegawa et al.
patent: 4690119 (1987-09-01), Makino et al.
patent: 4690120 (1987-09-01), Egle
patent: 4825840 (1989-05-01), Hewette et al.
patent: 4848652 (1989-07-01), Kennedy
patent: 4901000 (1990-02-01), Center et al.
patent: 5203312 (1993-04-01), Sato
patent: 5351935 (1994-10-01), Miyoshi et al.
patent: 5503131 (1996-04-01), Ohuchi

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