Tests of an alternating-current propulsion subsystem for electric vehicles on a road load simulator

Technical Report · Wed Dec 01 04:00:00 EST 1982

OSTI ID:6313822

Stenger, F J

This report presents the test results of a breadboard version of an ac electric-vehicle propulsion subsystem designed and built by Eaton Corporation under a cost-shared contract to NASA Lewis Research Center as a part of the US Department of Energy (DOE) Electric and Hybrid Vehicle Program. The breadboard was installed in the NASA Lewis Research Center Road Load Simulator facility and tested under steady-state and transient conditions. Steady-state tests were run to characterize the system and component efficiencies over the complete speed-torque range within the capability of the propulsion subsystem in the motoring mode of operation. Transient tests were performed to determine the energy consumption of the breadboard over the acceleration and cruise portions of SAE J227a driving schedules B, C, and D. Tests in the regenerative mode were limited to the low-gear-speed range of the two-speed transaxle used in the subsystem. The maximum steady-state subsystem efficiency observed for the breadboard was 81.5% in the high-gear-speed range in the motoring mode, and 76% in the regenerative braking mode (low gear). The subsystem energy efficiency during the transient tests ranged from 49.2% for Schedule B to 68.4% for Schedule D.

• Research Organization: National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
• DOE Contract Number: AI01-77CS51044
• OSTI ID: 6313822
• Report Number(s): DOE/NASA/51044-29; NASA-TM-83036; ON: DE83010986
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330300* -- Advanced Propulsion Systems-- Electric-Powered Systems
ACCELERATION
CONTROL SYSTEMS
DATA
EFFICIENCY
ELECTRIC MOTORS
ELECTRIC-POWERED VEHICLES
ENERGY EFFICIENCY
EXPERIMENTAL DATA
INFORMATION
MACHINE PARTS
MECHANICAL TRANSMISSIONS
MOCKUP
MOTORS
NUMERICAL DATA
PERFORMANCE
PERFORMANCE TESTING
PROPULSION SYSTEMS
STRUCTURAL MODELS
TESTING
VEHICLES