A LABORATORY FACILITY FOR ELECTRIC VEHICLE PROPULSION SYSTEM TESTING
The road load simulator facility located at the NASA Lewis Research Center enables a propulsion system or any of its components to be evaluated under a realistic vehicle inertia and road loads. The load is applied to the system under test according to the road load equation: F(net)=K1F1+K2F2V+K3 sq V+K4(dv/dt)+K5 sin theta. The coefficient of each term in the equation can be varied over a wide range with vehicle inertial representative of vehicles up to 7500 pounds simulated by means of flywheels. The required torque is applied by the flywheels, a hydroviscous absorber and clutch, and a drive motor integrated by a closed loop control system to produce a smooth, continuous load up to 150 horsepower.
- Presented at Intern. Congr. Of Transportation, Dearborn, Mich., 15-17 Sep. 1980; Sponsored in Cooperation with Vehicle Technology Society and IEEE, Society of Automotive Engineers, and Inst. Of Electrical Engineers.
Department of the NavyThe Pentagon
Washington, DC United States 20350
- Sargent, N B
- Publication Date: 1980
- Pagination: 11 p.
- TRT Terms: Data collection; Dynamic loads; Dynamometers; Electric vehicles; Engine performance; Flywheels; Friction; Hybrid automobiles; Hybrid vehicles; Inertia (Mechanics); Laboratory tests; Propulsion; Simulation; Test tracks; Testing equipment; Torque; Training simulators; Vehicle power plants
- Uncontrolled Terms: Propulsion systems
- Old TRIS Terms: Friction drag; Propulsion system performance
- Subject Areas: Energy; Highways; Vehicles and Equipment; I95: Vehicle Inspection;
- Accession Number: 00326913
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: NASA-TM-81574, DOE/NASA/1011-32
- Files: TRIS
- Created Date: Feb 18 1981 12:00AM