Patent ID: 11964567
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 9:
10. A method for controlling propulsion in a vehicle comprising:
calculating an initial torque command vector with a supervisory controller using an open-loop control function in response to a driver torque command;
calculating an intended operating vector in a multidimensional power space by a polynomial mapping of the initial torque command vector into the multidimensional power space;
generating an intermediate torque command by clipping the intended operating vector in response to a motor constraint, wherein the motor constraint specifies a maximum torque for proper operation of an electric motor;
generating a constrained command vector by clipping the intended operating vector in response to the motor constraint and a plurality of energy storage constraints, wherein the plurality of energy storage constraints specifies a plurality of electrical limits for proper operation of an energy storage device;
generate a distributed power limit command in response to the constrained command vector;
generating a final torque command with a motor controller in response to the intermediate torque command and the distributed power limit command; and
generating an axle torque with the electric motor in response to the final torque command, wherein the axle torque is transferrable to a drive wheel of the vehicle.