Heat exchanger system for hybrid vehicle passenger compartment heating utilizes waste heat generated by power semiconductors that control electric drive motor of hybrid drive

摘要

The heat exchanger system utilizes the waste heat generated by the power semiconductors (11) for controlling the electric motor of the hybrid drive, via a circulated cooling fluid fed to a heating heat exchanger (2). The IC engine (1) of the hybrid drive has a mechanical circulation pump (9) incorporated in the engine cooling circuit, which is coupled to the semiconductor cooling circuit (10) for utilizing a common cooling medium, e.g. water or a water/glycol mixture, with an electric circulation pump (12) in the latter cooling circuit.