Patent ID: 6584391
Filing Date: 2003-06-24
Classification: B60W,F02D,Y10T

Abstract:
A torque calculation method for providing real time data that measures net torque output of a running engine at a rotating member of the engine, the method comprising:processing data that includes engine speed data and engine fueling data to create engine gross torque data for the running engine; processing data related to torque losses due to running of the engine to create engine running torque loss data; processing engine speed data to create engine acceleration and deceleration data; processing the engine acceleration and deceleration data with data defining a moment of inertia attributable to the rotating member and engine mechanism coupled to that member to create data measuring inertial torque; algebraically adding the inertial torque data to, and subtracting the engine running torque loss data from, the engine gross torque data to create engine net running torque data; and processing the engine net running torque data and engine speed data according to a filter algorithm that compensates the engine net running torque data for engine speed.