78 Electric and Hybrid Vehicles 30 25 20 Cycle Speed (m/s) 15 10 5 0 200 400 600 800 1000 1200 1400 1600 0 Time (s) FIGURE 3.21 Highway fuel economy driving schedule (HWFET). 40 35 30 Cycle Speed (m/s) 25 20 15 10 5 0 50 100 150 200 250 300 350 400 0 Time(s) FIGURE 3.22 US06 standard drive cycle.