Accession Number : ADA294318

Title :   Free-Piston Engine Linear Generator for Hybrid Vehicles Modeling Study.

Descriptive Note : Interim rept. Jan -Aug 94,

Corporate Author : SOUTHWEST RESEARCH INST SAN ANTONIO TX TARDEC FUELS AND LUBRICANTS RESEARCH F ACILITY

Personal Author(s) : Callahan, T. J. ; Ingram, S. K.

PDF Url : ADA294318

Report Date : MAY 1995

Pagination or Media Count : 51

Abstract : Development of a free piston engine linear generator was investigated for use as an auxiliary power unit for a hybrid electric vehicle. The main focus of the program was to develop an efficient linear generator concept to convert the piston motion directly into electrical power. Computer modeling techniques were used to evaluate five different designs for linear generators. These designs included permanent magnet generators, reluctance generators, linear DC generators, and two and three-coil induction generators. The efficiency of the linear generator was highly dependent on the design concept. The two-coil induction generator was determined to be the best design, with an efficiency of approximately 90 percent.

Descriptors :   *PISTONS, *PISTON ENGINES, *ELECTRIC AUTOMOBILES, *ENGINE GENERATOR SETS, COMPUTERIZED SIMULATION, LINEAR SYSTEMS, AUXILIARY, MODELS, ENGINE COMPONENTS, MOTION, EFFICIENCY, ELECTRIC POWER, POWER EQUIPMENT, HYBRID SYSTEMS, VEHICLES, GENERATORS, DIRECT CURRENT, ELECTRIC PROPULSION, INDUCTION SYSTEMS, PERMANENT MAGNET GENERATORS.

Subject Categories : Electric Power Production and Distribution
      Surface Transportation and Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE