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

US11433735B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Christian ALLGAEUER · Munich, DE
• Paul Christ · Munich, DE
• Oliver Horn · Munich, DE
• Dominik Moser · Neu-Ulm, DE
• Patrick Oswald · Munich, DE
• Andreas SIUKA · Haselberg, AT

Key dates

• Filing date: Mar 19, 2020
• Grant date: Sep 6, 2022
• Expiry date: Dec 12, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A control system and method for a heating system of an electric vehicle or hybrid vehicle is embodied such that when there is a heating request for a high-voltage accumulator, an HVA heating mode is activated in which the high-voltage accumulator which is connected to an HVA circuit of the heating system is heated by an HVA heating source which is activated for this purpose so that heat is generated in the HVA circuit or transferred into the circuit. When there is a heating request for a passenger compartment of the vehicle, an air-conditioning heating mode is activated in which the passenger compartment is heated by a heating circuit, with heat which is generated in the heating circuit with an auxiliary heater or is transferred into the heating circuit with a heat pump, or both. When the air-conditioning heating mode is activated, it is determined whether or not there is a heating deficit which indicates whether the heating request can be completely satisfied with the auxiliary heater or with the heat pump or with both. If there is a heating deficit, an auxiliary heating mode is activated in which heat of the HVA heating source is transferred from the HVA circuit into the heating …