US 11,686,520 B2
System for transport refrigeration control of multiple compartments
Jason R. Kondrk, Clay, NY (US)
Assigned to Carrier Corporation, Palm Beach Gardens, FL (US)
Appl. No. 16/760,761
Filed by Carrier Corporation, Farmington, CT (US)
PCT Filed Oct. 30, 2018, PCT No. PCT/US2018/058123
§ 371(c)(1), (2) Date Apr. 30, 2020,
PCT Pub. No. WO2019/089526, PCT Pub. Date May 9, 2019.
Claims priority of provisional application 62/579,397, filed on Oct. 31, 2017.
Prior Publication US 2020/0256609 A1, Aug. 13, 2020
Int. Cl. F25B 27/00 (2006.01); F25D 11/02 (2006.01); F25B 49/00 (2006.01); F25D 19/00 (2006.01); F25D 21/00 (2006.01); B60H 1/32 (2006.01)
CPC F25D 11/025 (2013.01) [B60H 1/3222 (2013.01); F25B 27/00 (2013.01); F25B 49/005 (2013.01); F25D 19/003 (2013.01); F25D 21/006 (2013.01); F25B 2327/00 (2013.01); F25B 2400/06 (2013.01); F25B 2600/0251 (2013.01); F25D 2600/06 (2013.01); F25D 2700/121 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A transport refrigeration system, comprising:
first and second refrigeration circuits configured to cool first and second transport compartments, respectively;
an electric machine that powers the first and second refrigeration circuits; and
a controller configured to:
monitor a temperature of the electric machine;
reduce a cooling capacity of a selected one of the first and second refrigeration circuits based on the temperature exceeding a first threshold; and
in a first control mode:
determine a difference between a respective current temperature and a respective setpoint temperature of each of the transport compartments; and
select the refrigeration circuit whose associated transport compartment has the greatest difference as the selected refrigeration circuit.