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Effects of Electrical Loads on 42V Automotive Power Systems
Technical Paper
2003-01-2257
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Demands for higher fuel economy, performance, reliability, convenience, as well as reduced emissions push the automotive industry to seek electrification of ancillaries and engine augmentations. In cars of the future, throttle actuation, steering, anti-lock braking, rear-wheel steering, active suspension and ride-height adjustment, air-conditioning, and electrically heated catalyst will all benefit from the electrical power system. Therefore, a higher system voltage, such as the proposed 42V, is necessary to handle these new introduced loads. In this paper, an overview of the systems that will benefit from the 42V bus is presented. Effects of the new introduced electrical loads on the electrical power systems of conventional cars are described. Dynamic characteristics of each load for a typical drive cycle are defined. In addition, system level issues and vehicle performances such as fuel economy are addressed.
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Citation
Lukic, S. and Emadi, A., "Effects of Electrical Loads on 42V Automotive Power Systems," SAE Technical Paper 2003-01-2257, 2003, https://doi.org/10.4271/2003-01-2257.Also In
SAE 2003 Transactions Journal of Passenger Cars - Electronic and Electrical Systems
Number: V112-7; Published: 2004-09-15
Number: V112-7; Published: 2004-09-15
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