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1. (WO2018005978) SYSTEM AND METHOD OF MODE-BASED COMPRESSOR SPEED CONTROL FOR REFRIGERATED VEHICLE COMPARTMENT

Pub. No.:    WO/2018/005978    International Application No.:    PCT/US2017/040310
Publication Date: Fri Jan 05 00:59:59 CET 2018 International Filing Date: Sat Jul 01 01:59:59 CEST 2017
IPC: B60P 3/20
F25D 19/00
Applicants: EMERSON CLIMATE TECHNOLOGIES, INC.
Inventors: VEHR, Shawn, W.
ROZSNAKI, Joseph, J.
SIEFKER, Louis
Title: SYSTEM AND METHOD OF MODE-BASED COMPRESSOR SPEED CONTROL FOR REFRIGERATED VEHICLE COMPARTMENT
Abstract:
A system is provided that includes mode, shore power, engine, and battery modules. The mode module determines whether to operate in a shore power, engine, or battery mode based on parameters. The shore power module, while in the shore power mode, runs a compressor at a speed based on a temperature within a container of a vehicle and limits the speed to a first speed. A battery is charged based on utility power while in the shore power mode. The engine module, while in the engine mode, limits the compressor speed to a second speed. The battery, while in the engine mode, is charged based on power received from an alternator/generator. The battery module, while in the battery mode, limits the compressor speed to a third speed. While in the battery mode, the battery is not being charged based on power from a shore power source and the alternator/generator.