Control system for a heating system and method for operating a heating system

US11390138B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Robert HERBOLZHEIMER · Gröbenzell, DE
• Oliver Horn · Munich, DE
• Patrick Oswald · Munich, DE
• Markus Stix · Schweinhub, DE

Key dates

• Filing date: Mar 19, 2020
• Grant date: Jul 19, 2022
• Expiry date: Sep 29, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60H2001/3267
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A control system for a heating system of an electric or hybrid vehicle with a coolant cooled high voltage store. The control system includes an air conditioning evaporator of a refrigeration circuit of the heating system through which refrigerant circulates to cool the passenger compartment when a cooling requirement for a passenger compartment of the vehicle and for which an air conditioning cooling mode is set. The system further includes a chiller to cool the high voltage store when a cooling requirement for the high voltage store of the vehicle and for which a high voltage store (HVS) cooling mode is set. The control system selects the regulating variable for the compressor from a plurality of different regulating variables based on whether the air conditioning cooling mode is set, whether the HVS cooling mode is set, and/or whether both the air conditioning cooling and HVS cooling modes are set.