| 초록 |
In this paper, two-speed transmission ratios are designed for the high-performance, rear-wheel drive EV(Electric Vehicle). For the design of the two-speed transmission ratio, simulations were performed for different transmission ratios. Five indexes, which include time of reaching 100 km/h from stopping, maximum velocity, 40 % hill climb ability with over 10 km/h velocity, battery SOC(State of Charge) change of UDDS(Urban Dynamometer Driving Schedule), and battery SOC change of HWFET(Highway Fuel Economy Test Cycle), were used to determine the optimal transmission ratios. The optimal two-speed transmission ratios are designed as 14.16 and 8.33, respectively. |
