As single long rail supply method will reduce the stability and efficiency of the electric vehicle wireless power supply system

a wireless power supply method for multi-rail-based electric vehicle is proposed. The multiple transmission rails are in parallel with the bus. The transmission rail is active when the electric vehicle is just over the rail

with the other rails at stand-by. Its principle is described in detail

and the effectiveness of the proposed method is verified by the experimental results. The test results show that the power level of the pick-up port is ensured by the proposed method

the length of active rail is cut

the influence of rails' damage to system stability and the effect of wear and tear of rails on the efficiency of the system are reduced.