Patent ID: 8676459

Claim:
A system for controlling a powertrain of a vehicle having an engine configured to output a variable torque, a transmission with a plurality of gear ratios and selectively driven by the variable torque, and a pair of wheels selectively driven by the transmission, the system comprising: a longitudinal acceleration sensor; and a controller in electrical communication with the longitudinal acceleration sensor and configured to, determine an inertial value of the vehicle based on data from the longitudinal acceleration sensor prior to a shift from one of the plurality of gear ratios to another of the plurality of gear ratios; determine a first estimate of a real-time torque value based on at least one of an engine map, the plurality of gear ratios, a torque converter map, and driveline losses; and determine a second estimate of a real-time torque value based on the inertial value and data from the longitudinal acceleration sensor during the shift from the one of the plurality of gear ratios to the another of the plurality of gear ratios.