Heating system, electric or hybrid vehicle comprising such a heating system and method for operating a heating system

US10654336B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Christian ALLGAEUER · Munich, DE
• Nicolas Flahaut · Munich, DE
• Markus Moser · Oberschleißheim, DE
• Marion Mack · Munich, DE
• Oliver Horn · Munich, DE

Key dates

• Filing date: Jul 11, 2018
• Grant date: May 19, 2020
• Expiry date: Sep 13, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/70
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A heating system for an electric or hybrid vehicle, to which a high-voltage accumulator is connected, includes a coolant circuit having a heating circuit to which a heating heat exchanger is connected for air-conditioning the interior, and having a cooling circuit to which a cooler and a heat source are connected. The heating system has at least two refrigerating circuits, wherein a first refrigerating circuit includes an air-conditioning evaporator for air-conditioning the interior, and a first condenser, by which the first refrigerating circuit is thermally coupled to the coolant circuit in order to dissipate heat from the first refrigerating circuit. The second refrigerating circuit is thermally coupled by a second condenser to the coolant circuit. The two refrigerating circuits, however, are not coupled to each other. At least one of the refrigerating circuits further includes a chiller in order to dissipate heat from the coolant circuit.