| 摘要 |
FIELD: sports equipment. SUBSTANCE: running track has sensors connected in pairs, timers whose inputs are connected to sensors and outputs are connected to relay windings. Closing and opening contacts of relay are connected in series with output contact of starter relay. Outputs of transformer and resistor are connected in parallel with engine. Input of first transformer is connected to output contact of starter relay through opening contact of second relay and closing contact of first relay. Input of second transformer is connected to output contact of starter relay through opening contact of third relay, closing contacts of second and first relays. Resistor input is connected to output contact of starter relay. EFFECT: increased efficiency by increasing speed difference during switching and automatic adjustment of speeds in accordance with sportsman speed. 2 dwg
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