Patent ID: 8010263
Filing Date: 2011-08-30
Classification: B60K,B60W,F16H,Y02T,Y10S,Y10T

Abstract:
1. Multivariate control method for controlling torque output from a powertrain system to a driveline, the powertrain system comprising a plurality of torque-generative devices operably connected to a transmission operative to transmit torque to the driveline in fixed ratio and mode operating modes, comprising: monitoring an input torque to the transmission, an output torque to the driveline, and transmission operating speeds comprising an input speed, an output speed and rotational speeds of the torque-generative devices during operation in a selected one of the fixed ratio and mode operating modes; determining desired operating states for the powertrain system and the driveline for the selected one of the fixed ratio and mode operating modes; defining reference operating states for the input torque to the transmission, the output torque to the driveline, and the transmission operating speeds, the reference operating states responsive to the desired operating states for the powertrain system and the driveline for the selected one of the fixed ratio and mode operating modes; comparing first and second matrices to determine damping torque commands for each of the torque-generative devices, the first matrix comprising the reference operating states for the input torque to the transmission, the output torque to the driveline, and the transmission operating speeds, and the second matrix associated with the monitored input torque to the transmission, the monitored output torque to the driveline, and the monitored transmission operating speeds corresponding to the selected one of the fixed ratio and mode operating modes of the transmission; and controlling each of the torque-generative devices responsive to based upon the damping torque commands.