A high-efficiency, high power generation system for automobiles
- General Motors Research and Development Center, Warren, MI (United States). Electrical and Electronics Dept.
The paper presents a new scheme for the efficient generation of high electric power, demands 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:
- 419556
- Report Number(s):
- CONF-9510203--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Consumers need more reliable automobile fuel economy data
Fuel economy policies and their effects on automobile ownership, use, and fuel consumption. Final report