Failure diagnosis device of an EGR control device

Details Failure diagnosis device of an EGR control device Failure diagnosis device of an EGR control device

1992-04-14

1993-02-09

Wolfe, Willis R.

Internal-combustion engines

Charge forming device

Crankcase vapor used with combustible mixture

123416, F02M 2507, F02P 515

Patent

active

051845946

ABSTRACT:
A failure diagnosis device of an EGR control device provided with an exhaust gas recirculating passage for recirculating exhaust gas of an engine to an intake side of the engine and a recirculating valve for controlling to open and close the exhaust gas recirculating passage, which controls to open and close the recirculating valve comprising: a running condition detecting means for detecting a running condition of the engine; a failure diagnosis means for performing a failure diagnosis of the EGR control device by determining whether a difference between the first running condition when the recirculating valve is open and the second running condition when the recirculating valve is closed, is a predetermined value or more; and an ignition timing controlling means for performing an ignition timing controlling in accordance with a change of the running condition when the recirculating valve is switched from an open state to a closed state and from the closed state to the open state.

REFERENCES:
patent: 4314540 (1982-02-01), Ikeura
patent: 4315492 (1982-02-01), Gardner
patent: 4598684 (1986-07-01), Kato et al.
patent: 4608955 (1986-09-01), Ohtaki et al.
patent: 4671107 (1987-06-01), Chiesa et al.
patent: 4715348 (1987-12-01), Kobayashi et al.
patent: 4834054 (1989-05-01), Hashimoto et al.
patent: 4870942 (1989-10-01), Shibata et al.
patent: 4967717 (1990-11-01), Miyazaki et al.
patent: 5014203 (1991-05-01), Miyazaki et al.
patent: 5137004 (1992-08-01), Takahata et al.

Affiliated with

Also associated with

Rating

Failure diagnosis device of an EGR control device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Failure diagnosis device of an EGR control device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Failure diagnosis device of an EGR control device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-320901