Patent · US Active

Method for operating a coolant circuit for a vehicle air-conditioning system

US11104204B2 · kind B2 · utility

0Cited by

3References

7Claims

0Family size

Assignee

AUDI AG · DE

Inventors

Dirk Schroeder · Eckental, DE
Christian Rebinger · Munich, DE
Helmut ROTTENKOLBER · Mindelstetten, DE
Jan Wack · Ingolstadt, DE

Key dates

Filing date	Mar 1, 2018
Grant date	Aug 31, 2021
Priority date	—
Expiry date	Aug 26, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF25B2700/21163
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A method for operating a cooling circuit. It is provided that a) the actuation signal ST of the coolant compressor is provided so as to increase over time from a minimum value (STmin) in order to generate a start-up phase of the coolant compressor, b) a control signal maximum value (STmax) and a control signal threshold (STSW) are provided, where STSW<STmax, c) the actuation signal (ST) is limited to the control signal maximum value (STmax) if the actuation signal (ST) reaches the control signal threshold (STSW) and the measured high and/or low-pressure value (PHD, PND) satisfies a condition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.