A New Design for Automotive Alternators 2000-01-C084
This paper introduces a new design for alternator systems that provides dramatic increases in peak and average power output from a conventional Lundell alternator, along with substantial improvements in efficiency. Experimental results demonstrate these capability improvements. Additional performance and functionality improvements of particular value for high-voltage (e.g., 42 V) alternators are also demonstrated. Tight load-dump transient suppression can be achieved using this new design and the alternator system can be used to implement jump charging (the charging of the high-voltage system battery from a low-voltage source). Dual-output extensions of the technique (e.g., 42/14 V) are also introduced. The new technology preserves the simplicity and low cost of conventional alternator designs, and can be implemented within the existing manufacturing infrastructure.
Author(s):
David J. Perreault, Vahe Caliskan
Affiliated:
Massachusetts Institute of Technology
Pages: 14
Event:
Convergence 2000 International Congress on Transportation Electronics
Related Topics:
Alternators
High voltage systems
Batteries
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »