Kona EV used as portable charger to help a Model 3 win a rally.

[KiwiME]

Something a bit more cheerful in the news:

“During the rally we charged the Kona on both the 50kw and 20kw mobile units,” Edwards says, adding that some minor modifications were made to the Kona Electric to allow access to power from its 64kwh battery to then charge the Model 3 at a rate of 50kW."

https://thedriven.io/2020/10/28/how...odel-3s-landmark-victory-in-targa-west-rally/

 

[electriceddy]

Something a bit more cheerful in the news:

“During the rally we charged the Kona on both the 50kw and 20kw mobile units,” Edwards says, adding that some minor modifications were made to the Kona Electric to allow access to power from its 64kwh battery to then charge the Model 3 at a rate of 50kW."

https://thedriven.io/2020/10/28/how...odel-3s-landmark-victory-in-targa-west-rally/

I wonder what "minor modifications" were involved to enable bi-directional charging? (of course the hatch is mostly closed) but this could open some other doors to be used for utilization as a high level emergency power source or V2G capability (save money during peak demand periods), if your utility is set up this way.
Also good to see EV co-operation to beat the ICE competitors.

 

[Genevamech]

"Minor modifications" probably include splicing into the HV cables and maybe some jiggery-pokery to get the pack's main contractor to pull in... and putting a charging interface in the back of the Kona. The direct approach is usually the best with these things.

 

[KiwiME]

The mods might be "minor" by their perception but perhaps not ours! As best as I can see tapping off the battery HV cable where it exits the pack would work as well as anything else to power a normal 50kW EVSE but with power entering just past the primary rectification and filtering stage. The Kona's systems need to be alive (Run or Utility modes) so that the energy discharge can be accounted for by the BMS, and so that the main contactor inside the pack is closed. The battery cooling system might kick in as well.
Apparently the Model 3 won its class, not the entire race.

 

[electriceddy]

The mods might be "minor" by their perception but perhaps not ours! As best as I can see tapping off the battery HV cable where it exits the pack would work as well as anything else to power a normal 50kW EVSE but with power entering just past the primary rectification and filtering stage. The Kona's systems need to be alive (Run or Utility modes) so that the energy discharge can be accounted for by the BMS, and so that the main contactor inside the pack is closed. The battery cooling system might kick in as well.
Apparently the Model 3 won its class, not the entire race.

Possibly as simple as good quality split bolts and rubber tape or perhaps insulated wire tap connectors such as this:
https://www.amazon.ca/Products-9761...ocphy=9000922&hvtargid=pla-797026012492&psc=1
while still having to achieve DC charge protocol (handshake) on the receiving end
Maybe one of those 50 kW mobile charging units stuffed in the rear cargo area, it would have to be very small.

 

[KiwiME]

Here's an EVSE that would work. Might have to strip the guts out to fit it in the back of the Kona. US$20k on Alibaba.
http://www.setec-power.com/product/50kw-solar-chademo-ccs-charger/

 

[ericy]

Here's an EVSE that would work. Might have to strip the guts out to fit it in the back of the Kona. US$20k on Alibaba.

Kind of an interesting concept - paired with some solar and some batteries, one could have a charger that works without a grid connection. I don't know the total outlay required when all is said and done.