DEVICE FOR COOLING DRIVE COMPONENTS AND HEATING A PASSENGER COMPARTMENT OF AN ELECTRIC VEHICLE

摘要

A device for cooling drive components and heating a passenger compartment of an electric vehicle (69) with a drive motor powered by a battery (2) comprises a first coolant circuit (1) which is coupled to a second cooland circuit (5) via an intermediate heat exchanger (3). In the second coolant circuit (5) there is a first heat exchanger (6) acting as a cooler and a second heat exchanger (7) acting as a heater. The heat exchangers (6, 7) fitted in the second coolant circuit (5) each have a controllable by-pass (66, 67). A control device (10) detects several temperature conditions and signals derived from the battery control device (9) and processes them in order to actuate corresponding setting and operating means (17, 18, 19, 20) for the coolant flow.