This power system include two configurations: rated 60V low-voltage with 8kW air-cooling system or with a 10kW water-cooling system. The peak output power can reach maximum 18kW, peak torque can reach 66 N.m. The system include a PMSM motor( SMP180-08 series), a gearbox(optional) and a FOC controller( SD08 series). By matching with high-speed motor with gearbox, this power system can achieved both high power density and high torque output, the mechanical characteristic curve of the power system is further optimized. The system shows high torque at low speed and full power at high speed. With CAN communication function, the vehicle can be fully intelligent.