This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Comparison and Evaluation of a New Innovative Drive Concept for the Air Conditioning Compressor of Electric Vehicles
Technical Paper
2015-26-0045
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The development of energy efficient air conditioning systems for electric vehicles is an ever increasing challenge, because the cooling as well as the heating of the passenger compartment reduces the cruising range dramatically.
Electric cars are usually equipped with a scroll compressor and a separate electric motor with appropriate power electronics. However, this solution is critical in terms of the installation space, the weight and also the costs. Therefore, an innovative and energy efficient drivetrain structure for electric vehicles was developed, which integrates the motor of the A/C-compressor directly into the drivetrain.
Thus it is possible to switch off the compressor motor and to use the main motor for the drive of the compressor at certain driving situations. As a result, the operating point of the main motor can be shifted to a better efficiency. Moreover, in urban traffic the compressor motor can be used to drive the vehicle if the efficiency of the compressor motor is higher than the efficiency of the main motor. Thereby the efficiency and the cruising range of the vehicle can be increased.
This contribution presents a new powertrain concept which realizes the above mentioned mechanical coupling of the main motor and the compressor motor. This new concept is compared with a standard electric car which is equipped with a separate scroll compressor. Both systems are evaluated by means of the achievable cruising range for different driving cycles and environmental conditions.
Recommended Content
Technical Paper | Electric Air Conditioning for Class 8 Tractors |
Technical Paper | Air Conditioning System for Electric Vehicle |
Technical Paper | Heat Pipe/Two-Phase Flow Systems For Vehicle Passenger Cabin Cooling |
Authors
Topic
Citation
Baumgart, R., Aurich, J., Ackermann, J., and Danzer, C., "Comparison and Evaluation of a New Innovative Drive Concept for the Air Conditioning Compressor of Electric Vehicles," SAE Technical Paper 2015-26-0045, 2015, https://doi.org/10.4271/2015-26-0045.Also In
References
- Danzer , C. , Tenberge P. and von Unwerth , T. Efficiency studies on a new powertrain concept with an integrated simulation approach for electric vehicles 6th International CTI Symposium and Exhibition: Innovative Automotive Transmissions and Hybrid & Electric Drives Rochester, Michigan, USA 2012
- Baumgart , R. Reduzierung des Kraftstoffverbrauches durch Optimierung von Pkw-Klimaanlagen Dissertation Technische Universität Chemnitz Verlag Wissenschaftliche Scripten Germany 207 2010
- Christoffer , J. ; Deutschländer , T. and Webs , M. Deutscher Wetterdienst: Testreferenzjahre von Deutschland für mittlere und extreme Witterungsverhältnisse Selbstverlag des DWD Offenbach, Germany 99 2004