Patent ID: 11938918
Assignee: STEERING SOLUTIONS IP HOLDING CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 10:
11. A control system for controlling operation of an electric machine, comprising:
a processor; and
a memory that includes instructions that, when executed by the processor, cause the processor to:
determine a voltage-based torque limit based on a voltage constraint of a direct current (DC) bus supplying power to an inverter for powering the electric machine;
determine a motor current-based torque limit based on a motor current limit;
determine a supply current-based torque limit based on a supply rating, to supply current to the inverter, of the DC bus;
determine a regenerative current-based torque limit based on a receive rating, to receive current from the inverter, of the DC bus;
determine a final torque limit based on the voltage-based torque limit, the motor current-based torque limit, the supply current-based torque limit, and the regenerative current-based torque limit;
determine a limited command torque based on a torque command and the final torque limit; and
calculate at least one current command based on, at least, the limited command torque.