US 11,945,284 B2
Transportation refrigeration unit with DC generator charging of prime mover energy storage device
Mary D. Saroka, Syracuse, NY (US); and Jeffrey J. Burchill, Baldwinsville, NY (US)
Assigned to CARRIER CORPORATION, Palm Beach Gardens, FL (US)
Appl. No. 15/734,165
Filed by Carrier Corporation, Palm Beach Gardens, FL (US)
PCT Filed Sep. 13, 2019, PCT No. PCT/US2019/050958
§ 371(c)(1), (2) Date Dec. 1, 2020,
PCT Pub. No. WO2020/068450, PCT Pub. Date Apr. 2, 2020.
Claims priority of provisional application 62/738,671, filed on Sep. 28, 2018.
Prior Publication US 2021/0213806 A1, Jul. 15, 2021
Int. Cl. B60H 1/32 (2006.01); B60H 1/00 (2006.01); H02J 7/00 (2006.01); H02J 7/02 (2016.01); H02M 7/04 (2006.01); H02M 7/44 (2006.01)
CPC B60H 1/3226 (2013.01) [B60H 1/00014 (2013.01); B60H 1/00364 (2013.01); B60H 1/00428 (2013.01); B60H 1/3232 (2013.01); H02J 7/0068 (2013.01); H02J 7/02 (2013.01); B60H 2001/3261 (2013.01); B60H 2001/3292 (2013.01); H02J 2207/20 (2020.01); H02J 2310/40 (2020.01); H02M 7/04 (2013.01); H02M 7/44 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A transportation refrigeration unit (TRU) and power system comprising:
a compressor configured to compress a refrigerant, the compressor having compressor motor configured to drive the compressor;
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;
a TRU controller operably connected to the RAT sensor and configured to execute a process to determine an AC power requirement for the TRU based on at least the RAT;
a generator power converter, the generator power converter configured to receive a first DC power provided by a DC generator and transmit a second DC power;
an energy storage system configured to receive the second DC power and also provide a first a three phase AC power and receive a second three phase AC power; and
a power management system configured to receive the first three phase AC power and direct at least a portion of the first three phase AC power to the TRU based at least in part on the AC power requirement.