Control of multiple torque actuators across at least two controllers in a powertrain assembly

A method of operating a powertrain assembly having a first controller, a second controller, an input sensor, a first torque actuator controlled by the first controller and a second torque actuator controlled by the second controller, the method comprising:

• receiving a signal from the input sensor and converting the signal into a torque demand, via the first controller;
• sending the torque demand to the second controller, via the first controller;
• determining respective optimal torque allocations for the first and second torque actuators, via the second controller;
• conveying the respective optimal torque allocations to the first controller, via the second controller;
• storing a dynamic look-up table in the first controller, the dynamic look-up table being populated by a plurality of stored torque production allocation values based on a respective plurality of torque requests.

A vehicle comprising:

• a first controller configured to receive a signal from an input sensor, the first controller being configured to convert the signal into a torque demand;
• a second controller operatively connected to and configured to receive the torque demand from the first controller;
• a first torque actuator controlled by the first controller and configured to produce a first output torque;
• a second torque actuator controlled by the second controller and configured to produce a second output torque;
• wherein the second controller does not directly control the first torque actuator and the first controller does not directly control the second torque actuator;
• wherein the first controller includes a dynamic look-up table populated by a plurality of stored torque production allocation values based on a respective plurality of torque requests;
• wherein the second controller is programmed to:
• determine respective optimal torque allocations for the first and second torque actuators based on the torque demand and a plurality of optimization factors;
• transmit the respective optimal torque allocations to the first controller;
• wherein the first controller is programmed to:
• determine if the respective optimal torque allocations determined by the second controller are available to the first controller;
• and
• if the respective optimal torque allocations are not available to the first controller, obtain an estimated optimal first torque value from the dynamic look-up table based on the torque demand.