Patent ID: 8447491
Filing Date: 2013-05-21
Classification: B60W

Abstract:
1. A method for controlling output torque (T eng ) of a propulsion unit in a vehicle powertrain comprising driven wheels drivingly connected to the propulsion unit via a mechanical transmission with a drive shaft, the method comprising: registering a driver torque demand (T registering a propulsion unit rotational speed (ω controlling the output torque (T receiving, via the closed-loop LQR based controller, a full state vector information ({circumflex over (x)}) from a state observer based on at least the propulsion unit rotational speed (ω generating, via the closed-loop LQR based controller, a controller torque demand (T and wherein the controlling of the output torque (T a time derivative of a drive shaft torque ({dot over (T)} an integrated difference (x a current difference between the driver torque demand (T