FIELD: transport engineering; electric cars. SUBSTANCE: in proposed power supply system, battery forced cooling system is made form of closed liquid circulation circuit with heat exchangers of battery, traction motor and control units, circulating pump, flow governor and radiator. Battery heat exchanger is made in form of separate sections placed battery cells or groups of cells. Heat exchangers of traction motor and control unit are mounted either on common or separate pipelines shunting the radiator. Circulating pump can be used as flow governor. Circulation circuit can be provided with starting heater mounted on pipeline shunting battery heat exchanger and with temperature sensors to control flow rate. EFFECT: convenience in operation, enhanced electric characteristics and increased service life. 7 cl, 1 dwg
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