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:
Nov. 01, 2005
Filed:
May. 10, 2004
Mark a Wilson, Oxford, MI (US);
Mark a Simonich, Highland, MI (US);
Mark A Wilson, Oxford, MI (US);
Mark A Simonich, Highland, MI (US);
DaimlerChrysler Corporation, Auburn Hills, MI (US);
Abstract
A tachometer system is provided for a motor vehicle having an engine selected from a plurality of engines having unique maximum rated engine RPMs. The system has an RPM data signal and scale correction data. A microcontroller receives the RPM data signal and said scale correction data and generates a scaled tachometer signal therefrom in accordance with a computer program stored in a memory. A gauge drive circuit receives the scaled tachometer signal from the microcontroller. A tachometer gauge has a pointer driven by the gauge driver circuit. The computer program calculates the scaled tachometer signal according to a first scaling constant while the RPM data signal represents less than a predetermined RPM, and calculates the scaled tachometer signal according to a second scaling constant while the RPM data signal represents greater than the predetermined RPM. The second scaling constant is selected from a set of predetermined scaling constants according to the scale correction data.