Patent ID: 9170913
Filing Date: 2015-10-27
Classification: B60W,G05B,G06F,G06Q,G09B

Abstract:
1. A method of evaluating driver performance using a road surface slope metric derived from data that includes 3-D accelerometer data, comprising the steps of: (a) while the driver is operating the vehicle, automatically collecting vehicle data, the vehicle data including: (b) using a first computing device to derive the road surface slope metric using vehicle position data; (c) using the first computing device to determine a mass of the vehicle at a specific point in time, based on the road surface slope metric, vehicle speed data, torque data, and engine speed data corresponding to that point in time; and (d) using a second computing device to evaluate driver performance using a plurality of factors, at least one of which is derived from the slope determined mass of the vehicle.