The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 28, 1999
Filed:
Oct. 01, 1997
Danny R Baker, Columbus, IN (US);
Thane Morgan, Greenwood, IN (US);
Cummins Engine Company, Inc., Columbus, IN (US);
Abstract
An internal combustion engine with an embedded control system is disclosed which includes a programmable controller operatively coupled to a nonvolatile memory and a volatile memory. The nonvolatile memory is loaded with programming instructions for the controller. In one embodiment, a portion of the programming instructions are provided in an unexecutable compressed format which are then selectively decompressed into an executable format by an executable routine loaded in another portion of the nonvolatile memory. In another aspect, a first loading program is executed by the controller to load data from external support equipment. This data includes a second loading routine. The downloaded data also includes a code substitution program which is executed to replace the first loading routine with the second loading routine.