Patent ID: 11932076
Assignee: CARRIER CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  F  H  Y | IPC B  F

Claim 12:
13. A method of generating and directing power to a transportation refrigeration unit (TRU) system having a compressor configured to compress a refrigerant, an evaporator heat exchanger operatively coupled to the compressor; an evaporator fan configured to provide return airflow from a return air intake and flow the return airflow over the evaporator heat exchanger; a return air temperature (RAT) sensor disposed in the return airflow and configured measure the temperature of the return airflow; and a TRU controller, the method comprising:
determining an AC power requirement for the TRU based at least in part on the RAT;
providing at least one of a first three phase AC power from an axle or wheel hub and a second three phase AC power from a generator power converter that coverts the first three phase AC power;
receiving, by a power management system, at least one of the first three phase AC power and the second three phase AC power, and directing power to the TRU based at least in part on the AC power requirement;
providing or receiving, by an energy storage system, third three phase AC power to or from the power management system;
synchronizing and combining the third three phase AC power from the energy storage system and the at least one of the first three phase AC power and the second three phase AC power and directing the combined three phase AC power to the TRU.