Verfahren zur Steuerung eines Kältesystems eines Fahrzeugs

Details

Veröffentlichungs-Nr.

EP4079549

Aktenzeichen

EP21169690

Anmeldetag

21. April 2021

Veröffentlichung

24. April 2024

Erteilung

24. April 2024

Rechtsraum

EP

IPC

B60H1/32F25B5/02F25B49/02

Abstract

The invention relates to a method for controlling a refrigeration system (1) of a vehicle. The refrigeration system comprises a circuit (2) containing a refrigerant, a compressor (3), and a first evaporator (4) and a second evaporator (5) which are connected in parallel to the compressor, and a first expansion valve (9) arranged upstream the first evaporator, which first expansion valve regulates a pressure drop of the refrigerant before the first evaporator, and a second expansion valve (10) arranged upstream the second evaporator, which second expansion valve regulates a pressure drop of the refrigerant before the second evaporator, and a condenser (11) arranged downstream the compressor (3) between the compressor and the first and second expansion valves. The method comprises controlling a total opening of the first expansion valve (9) and the second expansion valve (10), based on a temperature (T<m>) and a pressure (p<m>) of the refrigerant which refrigerant temperature and refrigerant pressure are measured downstream the first and second evaporators at a position between the first and second evaporators and the compressor.

Anmelder

Firmen

Ningbo Geely Automobile Research & Development Co., Ltd.
Zhejiang Geely Holding Group Co., Ltd.

Land

🇨🇳 China

Fachgebiete