Heat pump, battery size, Class 2b division (light-duty pickup) classification confirmed in EPA Cybertruck documents

[KuMX]

Heat pump description in the EPA docs:

“Tesla Cybertruck’s heat pump reduces the energy required by the HVAC system in both heating and cooling scenarios. The energy required to heat the cabin varies by weather and occupant comfort needs, but on-average consumes approximately 10% of the total energy available for driving. However, even moderately cold weather (0°C), consumption can increase to 25% or more. A heat pump consumes a small amount of electrical energy to thermodynamically “upgrade” low-temperature (less useful) thermal energy to higher-temperature (more useful) thermal energy, making it suitable for occupant comfort. That is, for a given electrical power input, a heat pump will return 1 to 5x in useful heating power; an electrical cabin heater provides 1:1 in heating power, and therefore is far less efficient.”​

Cybertruck's EPA documents (full PDF download):
https://www.cybertruckownersclub.co....31146/?hash=ae51e40bb6dcb1d60293bcbef8ae35b5

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[Gurule92]

This seems featurable lol

tesla docs are here too
https://www.teslarati.com/tesla-cybertruck-epa-documents-heat-pump/

 

[Dazureus]

Interesting block of information. Am I reading this wrong? 150 kWh battery capacity (buffer takes it down to 123 kWh) and 3 permanent motors (no induction)?

 

[Knucklehead]

Interesting block of information. Am I reading this wrong? 150 kWh battery capacity (buffer takes it down to 123 kWh) and 3 permanent motors (no induction)?

To me it looks like 170 kW with 150 usable, but I am not familiar with the format of these documents.

 

[pricedm]

Test Date 11/02/2023
Verify Test Lab ID Tesla Kato

Mfr Test Group Comments Dummy submission for Cybertruck Beast for EPA COC
Carline 13 - Cybertruck Beast
Represented Test Vehicle Model Cybertruck Beast

Curb Weight 6,898
GVWR 9,169
Vehicle Class HDV1 (Federal HD chassis Class 2b GVW 8501-10000)

Total Voltage of Battery Packs 816

Battery Energy Capacity 150

 

[newwave1331]

To me it looks like 170 kW with 150 usable, but I am not familiar with the format of these documents.

Battery Specific Energy: 170 Wh/kg
I think this is the pack's energy density.

 

[Deleted member 17810]

Different classification of vehicle.

Meaning different driver and license needed.

 

[Dazureus]

To me it looks like 170 kW with 150 usable, but I am not familiar with the format of these documents.

So 123 kWh usable is 18% buffer. I think the 100kWh battery has a 5kWh lower buffer and some batteries had an upper buffer, but probably not in this case. 27kWh lower buffer does seem like a bit much, unless they're reserving a larger amount because of the 48V system.

 

[newwave1331]

If the total energy is 150kWh, that’s 82% usable at launch. If that going up to 93%, that would be ~140 kWh and 385 miles. Maybe software locked or sandbagging. If the pack size is really that big, the castings, exoskeleton, 48V and cams saved a lot more weight than we thought.

 

[fhteagle]

815V x 150Ah = 122.3kWh, rounding error away from 123kWh.

Since there's no units on those lines of the doc, I'm going with that as my guess.

 

[newwave1331]

815V x 150Ah = 122.3kWh, rounding error away from 123kWh.

Since there's no units on those lines of the doc, I'm going with that as my guess.

I sent Bard the photo of that page and this was its response:

According to the EPA filing for the Cybertruck, the battery pack has the following specifications:

• Battery Type: Lithium Ion
• Number of Battery Packs: 1
• Total Voltage of Battery Packs: 816
• Battery Energy Capacity: 150 kWh
• Battery Specific Energy: 170 Wh/kg
• Battery Charger Type: On-Board

This means that the Cybertruck battery pack has a very high energy capacity, which is what gives it its long range. The battery pack is also relatively lightweight, which helps to improve the vehicle's performance and efficiency.

Here is a table that summarizes the specs of the Cybertruck battery pack:

| Specification | Value | |---|---|---| | Battery Type | Lithium Ion | | Number of Battery Packs | 1 | | Total Voltage of Battery Packs | 816 V | | Battery Energy Capacity | 150 kWh | | Battery Specific Energy | 170 Wh/kg | | Battery Charger Type | On-Board |

 

[cvalue13]

815V x 150Ah = 122.3kWh, rounding error away from 123kWh.

Since there's no units on those lines of the doc, I'm going with that as my guess.

yes, it’s a listing of 150Ah, not 150kWh - converts to 123kWh


This submission of the performance data is apparently of dummy data, and not yet final data for EPA rating

 

[cvalue13]

Discussion here as pointed to by another manner on another thread

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