| 摘要 |
A navigation system for a vehicle includes a display device and host machine. The host machine communicates with a map database containing information describing a geocoded road network. The network includes nodes each describing a point within the network, with some nodes describing charging waypoints. The host machine executes a method, including recording a destination, determining a remaining state of charge (SOC) of a battery, and calculating a remaining electric vehicle (EV) range of the vehicle using the remaining SOC for every node. The host machine generates a first recommended EV travel route to the destination using a shortest distance or travel time approach when the destination lies within the remaining EV range. The host machine generates a second recommended EV travel route to the destination through a charging waypoint(s) when the destination lies outside of the remaining EV range. The EV route is displayed via the display device.
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