Matthew A Workman

US Patent:

58682147, Feb 9, 1999

Filed:

Aug 29, 1995

Appl. No.:

8/520714

Inventors:

Matthew W. Workman - Indianapolis IN

Assignee:

Cummins Engine Company, Inc. - Columbus IN

International Classification:

B60K 3104

US Classification:

180179

Abstract:

A cruise control governor which is able to dynamically define and switch between various goal droop curves in order to find the best goal droop curve for use with the current vehicle driving situation. For instance, the present invention will dynamically define and select different goal droop curves when the vehicle is lugging up a hill, coasting down a hill, cruising on level ground, preparing to crest a hill, or preparing to transition off of a downhill slope.

US Patent:

58282971, Oct 27, 1998

Filed:

Jun 25, 1997

Appl. No.:

8/882520

Inventors:

Donald L. Banks - Greenwood IN
William F. Collins - Columbus IN
Matthew W. Workman - Indianapolis IN
Auden E. Rovelle-Quartz - Columbus IN

Assignee:

Cummins Engine Company, Inc. - Columbus IN

International Classification:

B60R 2510

US Classification:

340426

Abstract:

A vehicle anti-theft system includes an engine control computer operable to control engine fueling in a normal mode of operation according to operator demand via an accelerator pedal, and a code interface module responsive to a predefined security code to set the engine control computer in a secure mode of operation. In the secure mode, two fuel enabling values in the engine fueling algorithm are altered. Specifically, an engine startup enable value is altered so that the engine control computer disables fueling if the engine is not running, to thereby prevent an unauthorized individual from starting the engine. Likewise, an accelerator enable value is altered so that the engine control computer disregards the accelerator signal and controls fueling of the engine to thereby maintain an engine idling condition. The control computer is reset to its normal fueling control mode by re-entering the security code.