Device for cooling drive components and heating a passenger compartment of an electric vehicle

US5549153A · kind A · utility

Assignee

• Behr GmbH & Co. · DE

Inventors

• Wilhelm Baruschke · Schallstadt, DE
• Karl Lochmahr · Leinfelden, DE
• Werner Rojnica · Eßlingen, DE

Key dates

• Filing date: Apr 14, 1995
• Grant date: Aug 27, 1996
• Expiry date: Apr 14, 2015

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/70
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A device for cooling drive components and heating a passenger compartment of an electric vehicle, having a drive motor fed by a battery, comprises a first coolant circuit which is coupled by an intermediate heat exchanger to a second coolant circuit. In the second coolant circuit there is provided a first heat exchanger, acting as a cooling element, and a second heat exchanger, acting as a heating element. The heat exchangers disposed in the second coolant circuit are provided with a respective controllable bypass. A control unit registers a plurality of temperature states and signals derived from the battery control unit and processes these in order to actuate corresponding adjusting and drive means for the flow of the cooling medium.