Performance Simulation of a Continuously Variable Displacement Drive for a Gasoline Engine Engine Systems Innovation Incorporated

Format:

Book

Conference/Event

Author/Creator:

Arnold, Steven, author.

Contributor:

Tillock, BRAD

Conference Name:

SAE WCX Digital Summit (2021-04-13 : Live Online, Pennsylvania, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2021

Summary:

A new type of drive system has been designed, analyzed, patented, prototyped, and tested. The drive's unique capabilities include the ability to vary the bottom dead center position to reduce the stroke, and simultaneously vary the top dead center position to achieve the desired compression ratio with one simple, low friction mechanism. The purpose of the concept is to reduce losses associated with operation at partial load as most engines spend a preponderance of their operating life at partial load. Cummins sponsored engine simulation of the CVD configured as a 7-cylinder gasoline engine cycle and a baseline engine which was a conventional V8 engine of the same displacement and compression ratio. The study showed a ~30% improvement in fuel economy on a 10-mode weighted cycle that was designed by Cummins to simulate the FTP cycle.This paper covers the performance analysis while SAE 2020-01-XXXX covers the design, analysis, prototyping and testing

Notes:

Vendor supplied data

Publisher Number:

2021-01-0442

Access Restriction:

Restricted for use by site license