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:
Sep. 11, 2012
Filed:
Oct. 09, 2008
Eric Berkobin, Woodstock, GA (US);
Erik Goldman, St. Charles, MO (US);
Eric Berkobin, Woodstock, GA (US);
Erik Goldman, St. Charles, MO (US);
HTI IP, L.L.C., Atlanta, GA (US);
Abstract
A telematics device coupled to vehicle onboard computer system calculates carbon dioxide output of the vehicle. The device uses inputs from existing vehicle performance and parameter sensors, such as speed, fuel efficiency, mass air flow and oxygen present in the vehicle's exhaust, to calculate carbon dioxide output. Speed divided by fuel efficiency results in gallons per hour. An emmission factor, EF, multiplied by the gallons per hour results in weight of carbon dioxide produced by the vehicle per hour. Dividing EF by the efficiency results in pounds per mile. Using input from the mass air flow and oxygen sensors, with an approximation of gasoline molecular weight may produce more accurate results without using EF. If the sensors do not provide values in the units needed, a calibration curve for the mass air flow sensor and oxygen sensor may be used. The telematics device can display the results or upload them.