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Preliminary Assessment of the Tradeoffs Between the Electric Motor and the Transmission in Electric Vehicles

机译:电动汽车与电动汽车变速器权衡的初步评估

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The objective was to compare the efficiency, weight, and cost of various propulsion systems for 4-passenger electric vehicles. These systems comprise the electric motor and the required speed reducing transmission to obtain the appropriate speed at the wheels. Three types of motors were considered and compared: d-c, synchronous with slip-rings; and squirrel-cage. Two top speeds were selected: 6000 rpm for the d-c motor and 24000 rpm for the a-c motor. The peak power considered was in the order of 40 kW. The types of gearing selected were: differential with single speed reduction (no gear change) and differential with 4-speed gear box. (ERA citation 08:046679)

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