Troubleshooting system for exhaust gas recirculation controller

Details Troubleshooting system for exhaust gas recirculation controller Troubleshooting system for exhaust gas recirculation controller

1992-06-11

1993-11-02

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

36443106, F02M 2506

Patent

active

052576108

ABSTRACT:
A troubleshooting system for an exhaust gas recirculation (EGR) controller, which troubleshoots the EGR controller in an optimal short EGR-OFF time by not only detecting either a rate of change of an intake manifold pressure or a difference between a maximum and a minimum thereof associated with the turning on and of the EGR in accordance with an EGR flow amount using an operation condition detecting means, but also detecting a number of revolutions of an engine or the like.

REFERENCES:
patent: 4870941 (1989-10-01), Hisatomi
patent: 4870942 (1989-10-01), Shibata et al.
patent: 4879986 (1989-11-01), Sakamoto
patent: 5014203 (1991-05-01), Miyazaki et al.
patent: 5150695 (1992-09-01), Kondo
patent: 5154156 (1992-10-01), Ohuchi

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