The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 31, 2021

Filed:

Mar. 01, 2018
Applicant:

Audi Ag, Ingolstadt, DE;

Inventors:

Dirk Schroeder, Manching, DE;

Christian Rebinger, Munich, DE;

Helmut Rottenkolber, Mindelstetten, DE;

Jan Wack, Ingolstadt, DE;

Assignee:

AUDI AG, Ingolstadt, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60H 1/22 (2006.01); B60H 1/32 (2006.01); B60H 1/00 (2006.01);
U.S. Cl.
CPC ...
B60H 1/00899 (2013.01); B60H 1/00007 (2013.01); B60H 1/0045 (2013.01); B60H 1/00428 (2013.01); B60H 1/22 (2013.01); B60H 1/3208 (2013.01); B60H 1/3222 (2013.01); B60H 2001/3238 (2013.01); F25B 2500/26 (2013.01); F25B 2600/01 (2013.01); F25B 2700/1931 (2013.01);
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 (ST) in order to generate a start-up phase of the coolant compressor, b) a control signal maximum value (ST) and a control signal threshold (ST) are provided, where ST<ST, c) the actuation signal (ST) is limited to the control signal maximum value (ST) if the actuation signal (ST) reaches the control signal threshold (ST) and the measured high and/or low-pressure value (PHD, P) satisfies a condition.


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