Research Article
Development of a Driving Cycle for Fuzhou Using K-Means and AMPSO
Table 8
Composite feature parameters of fragments in three categories.
| | | Category 1 | Category 2 | Category 3 |
| | Number of fragments | 1176 | 1967 | 577 | | Driving time (s) | 108,429 | 227,210 | 132,055 | | Acceleration time (s) | 18,898 | 79,114 | 44,485 | | Deceleration (s) | 15,512 | 63,795 | 35,336 | | Constant-speed time (s) | 10,066 | 45,784 | 46,431 | | Idle time (s) | 63,953 | 38,517 | 5803 | | Driving distance (km) | 198.537 | 1555.13 | 1964.93 | | Maximum speed (km/h) | 58 | 122.1 | 173.8 | | Maximum acceleration (m/s2) | 3.91 | 3.912 | 3.94 | | Maximum deceleration (m/s2) | −5.92 | −7.29 | −7.58 | | Average speed (km/h) | 6.59 | 24.64 | 53.57 | | Average driving speed (km/h) | 16.07 | 29.67 | 56.03 | | Average acceleration in the acceleration mode (m/s2) | 0.53 | 0.46 | 0.35 | | Average deceleration in the deceleration mode (m/s2) | −0.54 | −0.58 | −0.44 | | Acceleration time percentage | 0.174289 | 0.348198 | 0.336867 | | Deceleration time percentage | 0.143061 | 0.280775 | 0.267585 | | Constant-speed time percentage | 0.092835 | 0.201505 | 0.351603 | | Idle time percentage | 0.589815 | 0.169522 | 0.043944 | | Percentage of speed at 0–10 (km/h) | 0.72084 | 0.248818 | 0.062565 | | Percentage of speed at 10–20 (km/h) | 0.150725 | 0.148162 | 0.03881 | | Percentage of speed at 20–30 (km/h) | 0.085245 | 0.19857 | 0.065223 | | Percentage of speed at 30–40 (km/h) | 0.035037 | 0.19706 | 0.10978 | | Percentage of speed at 40–50 (km/h) | 0.007682 | 0.141213 | 0.166658 | | Percentage of speed at 50–60 (km/h) | 0.00047 | 0.051151 | 0.179153 | | Percentage of speed at 60–70 (km/h) | 0 | 0.011514 | 0.122161 | | Percentage of speed at 70–80 (km/h) | 0 | 0.00331 | 0.084775 | | Percentage of speed ＞80 (km/h) | 0 | 0.000202 | 0.170876 |
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