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If Your Electric Car Runs Out of Power on the Highway ...
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EPAIII:
You obviously don't have a devious mind. A simple splash of mud takes care of license plate ID. If you get stopped, "Gosh officer, I didn't know that. I will clean it at the next charging station."




--- Quote from: Andy Chee on January 01, 2024, 09:53:54 am ---
--- Quote from: EPAIII on January 01, 2024, 09:31:25 am ---After watching the video, I have to wonder what's to stop someone in a car from having a panto-graph and stealing free power? Would the police have to ticket free-loaders?

--- End quote ---
It's no stretch of the imagination that they would have number plate recognition cameras along the route to catch people stealing electricity.

--- End quote ---
EPAIII:

--- Quote from: Smokey on January 01, 2024, 10:29:12 am ---
--- Quote from: Andy Chee on January 01, 2024, 08:35:23 am ---
--- Quote from: Smokey on January 01, 2024, 07:55:26 am ---
--- Quote from: Andy Chee on December 31, 2023, 03:54:48 am ---Build a range extender

--- End quote ---

There is another one now where this guy swapped in a diesel engine... 

I'm pretty sure this is bullshit, and he's just driving around a normal tesla with an engine running in the back doing absolutely nothing useful (except getting youtube views).  They make zero mention of how this engine is putting energy into the car.  It's not mechanically coupled to the wheels.  And they don't have any electronics to boost a generators voltage up to pack voltage (400V) to charge the pack.  I'm pretty sure the Tesla BMS would lose its shit if it detected the battery charging while the vehicle was moving anyway.

--- End quote ---
You don't need 400V to charge the pack, you only need household 240V.

I agree somewhat about the Tesla computer preventing simultaneous charging and movement, I realise that Tesla hackers have done all sorts of weird system bypasses, so charging whilst moving is not out of the realm of possibilities.

--- End quote ---

If your battery is at 400V then you need to make over 400V somehow to charge that battery (yes I know the battery is already fully charged at 400V, but the same holds for 350V, or 300V).  The 240V(AC) from your house gets rectified and boosted/bucked by the internal charger so it charges at the right current.  If that charger refuses to close the charge contactors, like for instance if the vehicle is on or moving, then you can plug whatever you want in but it's not getting into the battery.
Yes, people have done some wacky stuff hacking teslas, but that guy in the video looks and sounds like an idiot.

--- End quote ---


Well correct me if I am wrong, but UPS devices have been functioning with pass through mode for decades now. The wall power charges the cells and the cells power an inverter that then powers the equipment, like a computer. If the commercial power fails the inverter and equipment never even sees a blip.

They charge most of the time and power the equipment all of the time. No down time for charging. No reason why a vehicle battery can not operate the same way.
Andy Chee:

--- Quote from: EPAIII on January 02, 2024, 10:51:52 am ---You obviously don't have a devious mind. A simple splash of mud takes care of license plate ID. If you get stopped, "Gosh officer, I didn't know that. I will clean it at the next charging station."

--- End quote ---
You have no idea how authoritarian our police can be!  They will ticket you for having dirty number plates!  Ignorance is no excuse!
Siwastaja:
There is no fundamental technical problem charging using the on-board AC charger while driving. It is just a rare enough use case with large enough consequences if it doesn't go right that for liability reasons, vehicle manufacturer has to prevent it. Doing it right and safely would be a huge task. If I were to design these vehicles, I would leave a simple-to-find backdoor so that enthusiasts can find it and share how to disable the interlock. (But not too trivial to find, so that the responsibility is clearly on user.)
Andy Chee:

--- Quote from: Siwastaja on January 02, 2024, 06:34:42 pm ---There is no fundamental technical problem charging using the on-board AC charger while driving.

--- End quote ---
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.  An 11kW Level 2 charger would add about 60km of range per hour of charging.  And then there's 100kW Level 3 chargers!

There's a big difference between a 2kW generator and a 3-phase 11kW generator, and attempting to shoehorn the latter into the back of a Tesla would be an entertaining, if pointless engineering challenge!
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