A high-efficiency high-power-generation system for automobiles

Journal Article · Sat Nov 01 00:00:00 EST 1997 · IEEE Transactions on Industry Applications

DOI:https://doi.org/10.1109/28.649966· OSTI ID:597024

Naidu, M; Boules, N; Henry, R ^[1]

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1. General Motors Research and Development Center, Warren, MI (United States). Electrical and Electronics Dept.

This paper presents a new scheme for the efficient generation of high electric power demanded for future automobiles. The new system consists of a permanent-magnet (PM) alternator having high-energy MAGNEQUENCH (MQ) magnets and split winding and a novel electronic voltage-regulation scheme. A proof-of-concept system, capable of providing 100/250 A (idle/cruising) at 14 V, has been built and tested in the laboratory with encouraging results. This high output is provided at 15--20 percentage points higher efficiencies than conventional automotive alternators, which translates into considerable fuel economy savings. The system is 8 dB quieter and has a rotor inertia of only 2/3 that of an equivalent production alternator, thus allowing for a belt drive without excessive slippage.

• OSTI ID: 597024
• Journal Information: IEEE Transactions on Industry Applications, Vol. 33, Issue 6; Other Information: DN: Paper presented at the 1995 Industry Applications Society annual meeting, October 8--12, Lake Buena Vista, FL (US); PBD: Nov-Dec 1997
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
AUTOMOBILES
ALTERNATORS
ENERGY EFFICIENCY
DESIGN
PERMANENT MAGNETS
VOLTAGE REGULATORS
FUEL CONSUMPTION
NOISE POLLUTION