Method for a thermal management of a motor vehicle

US11607925B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Felix ARTMEIER · Munich, DE
• Niko Fontein · Unterschleißheim, DE
• Torsten Frank · Hergolding, DE
• Alexander LICHTENBERGER · Sankt Michael am Bruckbach, AT

Key dates

• Filing date: Oct 16, 2020
• Grant date: Mar 21, 2023
• Expiry date: Oct 16, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60H2001/00949
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A method for thermal management of a motor vehicle includes circulating of coolant, in a first operating state, at least in a motor cooling circuit through a series circuit that includes a motor circuit pump, an electric motor, and a low temperature (LT) radiator where the motor circuit pump is activated and where the coolant flows in a first direction through the LT radiator. The method further includes, time-shifted with respect to the first operating state, circulating of coolant, in a second operating state, at least in a chiller cooling circuit through a series circuit including a chiller, a chiller section pump, the motor circuit pump, and the LT radiator where the chiller section pump is activated, where the motor circuit pump is deactivated, where the coolant flows in a second direction through the LT radiator, and where the second direction is opposed to the first direction.