Maximum-efficiency dc-motor project for electric vehicles
Abstract
Innovations to the operation of the typical direct current motor were made and included: an electronic circuit to generate a low level voltage circulation, an interface circuit capable of an 800% voltage amplification and aa 3000% current amplification, and a specially modified motor containing three additional brushes. The efficiency of the motor is maximized by an electronic circuit that artifically rotates the magnetic field around the armature at low RPM so that the motor is running at near peak efficiency virtually all the time.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- December 1982
- Bibcode:
- 1982STIN...8416479W
- Keywords:
-
- Direct Current;
- Electric Motor Vehicles;
- Electric Motors;
- Energy Conversion Efficiency;
- Magnetic Fields;
- Control Equipment;
- Electronic Control;
- Engine Design;
- Electronics and Electrical Engineering