Controlling a refrigeration unit in response to a specific cargo load

US10823498B2 · kind B2 · utility

Assignee

• CARRIER CORPORATION · US

Inventors

• Yu H. Chen · Manlius, US
• Giorgio Rusignuolo · Manlius, US
• Marc Beasley · Beverly, US
• Luke DiMaggio · Anderson, US
• Kartik Kumar · Bengaluru, IN

Key dates

• Filing date: Dec 12, 2016
• Grant date: Nov 3, 2020
• Expiry date: Jan 31, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F25D2700/16
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method and system to control a refrigeration unit (104) in response to a cargo load (108) in a refrigerated container includes providing a plurality of sensors disposed within the refrigerated container, providing a cargo load temperature range and a cargo load excursion time limit corresponding to the cargo load, receiving a plurality of temperature readings corresponding to the cargo load via the plurality of sensors, operating the refrigeration unit in a power saving mode in response to the plurality of temperature readings within the cargo load temperature range, and operating the refrigeration unit in a standard mode in response to the plurality of temperature readings outside the cargo load temperature range for longer than the cargo load excursion time limit.