Abstract:
The invention concerns the problem of heating the passenger compartment by means of electrical resistance heating which loads the drive battery in the case of all-electric cars, and the problem of the internal combustion engine giving off more heat than is required for heating purposes in the case of hybrid vehicles. In order to overcome these problems, the invention proposes a car having a power-heat cogeneration system, in particular for private local travel. The coupling system comprises a series hybrid drive (Fig. 1) in which the internal combustion engine (32) is coupled only to a generator (30) and forms therewith a current unit which can provide only a fraction of the electrical power absorbed by at least one electric drive motor (10/12), which is constantly connected to an electric drive battery (22) which can be charged by means of the current unit. The coupling system further comprises an arrangement for heating the passenger compartment (66) by transfer of heat from the current unit to a heat transfer medium fed to the passenger compartment (Fig. 2).
Abstract:
The invention concerns the problem of heating the passenger compartment by means of electrical resistance heating which loads the drive battery in the case of all-electric cars, and the problem of the internal combustion engine giving off more heat than is required for heating purposes in the case of hybrid vehicles. In order to overcome these problems, the invention proposes a car having a power-heat cogeneration system, in particular for private local travel. The coupling system comprises a series hybrid drive (Fig. 1) in which the internal combustion engine (32) is coupled only to a generator (30) and forms therewith a current unit which can provide only a fraction of the electrical power absorbed by at least one electric drive motor (10/12), which is constantly connected to an electric drive battery (22) which can be charged by means of the current unit. The coupling system further comprises an arrangement for heating the passenger compartment (66) by transfer of heat from the current unit to a heat transfer medium fed to the passenger compartment (Fig. 2).