Method and system for operating a refrigeration system with a heat pump function and a regeneration function for heat sources and a motor vehicle including such a system

US12291081B2 · kind B2 · utility

Assignee

• AUDI AG · DE

Inventors

• Christian Rebinger · Munich, DE
• Dirk Schroeder · Eckental, DE
• Helmut ROTTENKOLBER · Mindelstetten, DE

Key dates

• Filing date: Oct 19, 2021
• Grant date: May 6, 2025
• Expiry date: Feb 22, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F25B2700/21152
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for operating a refrigeration system having a heat pump function for motor vehicle, including the following steps: setting a heat pump operation, in which the refrigerant is routed from the refrigerant compressor into the secondary line; setting an expansion valve assigned to the third heat exchanger such that a total mass flow of refrigerant flows through the third heat exchanger; and detecting the temperature of the coolant in the third heat exchanger. The total mass flow of refrigerant is routed through the third heat exchanger when the temperature of the coolant is greater than an upper limiting temperature.