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If Your Electric Car Runs Out of Power on the Highway ...
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Siwastaja:

--- Quote from: Andy Chee on January 02, 2024, 07:05:58 pm ---I'd say the problem with charging while driving, is getting a practical amount of charge into the vehicle whilst driving.

For example, a household 2kW Level 1 charger will only add about 10km of range per hour of charging.

--- End quote ---

Well, in summer conditions for a moderately good car driving at say 50km/h, consumption is closer to 100Wh/km than 200, so a 2kW mini genset could sustain nearly 20km/h average speed, if it runs 100% of the time. However, don't forget the contribution of the battery. If you know beforehand that you are not going to make it, and start the generator already at, say, 50% SoC, and start conserving energy for the last two hours of drive on the battery, then you have already charged 40km worth of extra range. So it becomes nearly manageable way to extend the range in unusual conditions - e.g. an unexpected trip to some area with insufficient charging network. This all totally falls apart if you have to stop to charge at that measly 2kW, then your average speed will drop even below that 20km/h.

Of course, this is all unnecessary speculation. Nearly no one would realistically ever do this.
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