Automotive evaporative emission leak detection system and method

Details Automotive evaporative emission leak detection system and method Automotive evaporative emission leak detection system and method

1998-03-10

2000-03-28

Dombroske, George

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

Vehicle diagnosis or maintenance indication

731181, 73 497, G01M 1500

Patent

active

060443146

ABSTRACT:
An on-board evaporative emission leak detection system and method that detects leakage from an evaporative emission space of a fuel system of an automotive vehicle. A test includes an initialization, or stabilization, phase during which a differential between pressure in the evaporative emission space and atmospheric pressure is created, and then varied, over time, within a range of differential pressures suitable for performing a leak detection test. A leak size measurement is then obtained using an algorithm.

REFERENCES:
patent: 5275144 (1994-01-01), Gross
patent: 5297529 (1994-03-01), Cook et al.
patent: 5651351 (1997-07-01), Matsumoto et al.
patent: 5715799 (1998-02-01), Blomquist et al.
patent: 5750888 (1998-05-01), Matsumoto et al.
patent: 5763764 (1998-06-01), Mieczkowski et al.
patent: 5898108 (1999-04-01), Mieczkowski et al.

Affiliated with

Also associated with

Rating

Automotive evaporative emission leak detection system and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Automotive evaporative emission leak detection system and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automotive evaporative emission leak detection system and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1334493