Patent ID: 7774130
Filing Date: 2010-08-10
Classification: B60W,F02D

Abstract:
1. A method of determining fuel consumption in a vehicle, comprising: (a) determining fuel consumption by using mass air flow (MAF) sensor data or manifold air pressure (MAP) sensor data, including obtaining MAF data or MAP data in the vehicle, comprising: (c) correcting the fuel consumption in the vehicle by applying said long term and short term fuel trim values to determine a corrected fuel consumption in the vehicle; the obtaining comprising sensing data in the vehicle through a vehicle diagnostic bus; and the sensing being performed in one or more of the following ways: sensing data at respective frequencies, which are substantially inversely proportional to the rates change of respective data; sensing data consecutively; sensing data concurrently; sensing data according to a random selection of their sampling order; or sensing selected data at a sampling frequency, which is dependent on a value of another data.