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42V PowerNet in Door Applications
Technical Paper
2000-01-0450
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
This article describes the effects of a future 42V automotive electrical system on the vehicle electronics, focusing mainly on the consequences for power semiconductors and their associated technologies. Taking the example of a door module, it then shows how existing 14V loads can be operated on the 42V PowerNet and what advantages result for operation of adjusted 42V loads. The following different problem-solving approaches are presented for typical loads such as power windows, electrically positioned and heated outside mirrors, and central locking:
- Power windows: A test motor specially developed for the 42V supply is continuously operated directly from the electrical system using suitable power semiconductors.
- Central locking: A conventional 14V motor is operated at 42V, its operating point being set using pulse width modulation (PWM).
- Remaining door module: Smaller 14V mirror motors and the control electronics are supplied from a second 14V system. This second supply can be taken from the current 14V system or generated locally by appropriate switching regulators, or even by a central DC/DC converter from 42V.
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Citation
Pechlaner, A. and Graf, A., "42V PowerNet in Door Applications," SAE Technical Paper 2000-01-0450, 2000, https://doi.org/10.4271/2000-01-0450.Also In
SAE 2000 Transactions Journal of Passenger Cars - Electronic and Electrical Systems
Number: V109-7; Published: 2001-09-15
Number: V109-7; Published: 2001-09-15
References
- Intelligent Power Semiconductors for Future Automotive Electrical Systems Graf A. Dr. et al. 17 th Conference ‘Vehicle Electronics’ Munich 3-4 June 97
- Semiconductor Technologies and Switches for New Automotive Electrical Systems Graf A. Dr. EAEC European Automotive Congress Barcelona 30 June 2 July 99
- Fuse Replacement with Smart Power Semiconductors Graf A. Dr. Estl H. 8th International Conference Vehicle Electronics Baden-Baden 8-9 October 98