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- W564902547 abstract "A testing program at the Jet Propulsion Laboratory (JPL) investigated the performance improvements possible through retrofitting electric vehicles with improved batteries. Performance comparisons (range and battery energy) were made, each vehicle's road load was defined, and its electrical drivetrain (including batteries) characterized under actual conditions. The vehicles were tested with as-received lead-acid batteries, followed by tests with nickel-iron and nickel-zinc batteries. Coastdown testing conditions are described, as well as dynamometer and tire-dynamometer adjustments using road load data from the track tests. Measures employed to minimize variability and enhance the credibility of the battery comparisons are described: battery conditioning, soaking the vehicle to eliminate battery electrolyte temperature as a variable, use of a quasi-equalization charge process to minimize battery heating while producing a full charge, and application of an off-board charger to assure the same degree of charge for each vehicle's batteries. General criteria used by JPL to define the acceleration, coast, and brake portions of the SAE (Society of Automotive Engineers) J227a test procedure are stated." @default.
- W564902547 created "2016-06-24" @default.
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- W564902547 date "1980-01-01" @default.
- W564902547 modified "2023-09-26" @default.
- W564902547 title "TEST METHODOLOGY FOR ELECTRIC VEHICLES AT THE JET PROPULSION LABORATORY (ABSTRACT OF ORAL PRESENTATION)" @default.
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