Development and Validation of a 0.020 Evaporative Leak Diagnostic System Utilizing Vacuum Decay Methods Delphi Automotive Systems, Energy and Engine Management Systems

Format:

Conference/Event

Author/Creator:

Majkowski, Stephen F., author.

Conference Name:

International Congress & Exposition (1999-03-01 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1999

Summary:

This paper describes the development of a vacuum-decay based evaporative leak detection sub-system that meets the model year 2000 California Air Resources Board (CARB) requirements.1 The diagnostic algorithm was developed and tested to create a production intent calibration. In addition, the calibration was validated during a four month test period of diagnostic and driveability performance, which included hot ambient, high volatility fuels, and altitude. It was found to detect 0.020 inch leaks reliably in-use, while being robust to misdiagnosis of smaller leaks

Notes:

Vendor supplied data

Publisher Number:

1999-01-0861

Access Restriction:

Restricted for use by site license