Research Article
Design of a Personal Mobility Device for Elderly Users
Table 6
Comparison of a commercial elderly EV and the EPMD.
| Condition | The commercial EV | The EPMD |
| Motor | Gear motor | BLDC motor | 2 × 250 W | 500 W | Battery | Li-ion battery | Li-ion battery | 24 V, 20 Ah, 480 Wh | 48 V, 13 Ah, 624 Wh | Charge time | 7.41 hr | 2.89 hr | Structural material | Aluminum | Carbon steel | EV weight | 45 kg | 70 kg | Maximum carry weight | 100 kg | 200 kg | Maximum speed | 5 km/hr | 25 km/hr | Usable time (5 km/hr) | 4.98 hr | 3.98 hr | Usable distance (5 km/hr) | 24.92 km | 19.92 km | Sensor system | No | Yes | EV cost | 770 USD | 880.4 USD |
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