Gravity Orders Discussion

[illopp00]

I think with OoS you don't get to choose what to view. Its Kyle's truth and I respect him for that. Also, I respect that he chose a L-O-N-G format when we live in a TikTok 15"' world!

I agree, I appreciate real depth and details in the long form, just wished it had some slightly more structure/outline repeatability and those chapter markers.

 

[RD7]

Coming soon…ability to charge

Darn well should be! At least Lucid is officially on the list now. We've known that Hyundai/Genesis/Kia were coming soon, and I saw a report on Tom Moloughney's channel that Mercedes was coming in February. Progress is being made. Now if we can just find out how Lucid plans to avoid the Air's 50k max Supercharger rate on Gravity ...

 

[borski]

Darn well should be! At least Lucid is officially on the list now. We've known that Hyundai/Genesis/Kia were coming soon, and I saw a report on Tom Moloughney's channel that Mercedes was coming in February. Progress is being made. Now if we can just find out how Lucid plans to avoid the Air's 50k max Supercharger rate on Gravity ...

I can guarantee the Gravity will be able to charge at full or close to full speeds at superchargers.

I don’t know how they are going to do it, but it would be absolutely idiotic if they didn’t. And Lucid is a lot of things, but idiotic ain’t one of them.

 

[hmp10]

I agree, I appreciate real depth and details in the long form, just wished it had some slightly more structure/outline repeatability and those chapter markers.

I make a lot of fun of the length of the OoS reviews, but I really don't mind the on-topic depth and detail. It's the frequent little side detours off the topic that add unnecessary length to what are already long videos. I mean, honestly, some of the discussions about a single model are as long as many feature-length movies. Unless you're absolutely obsessed with a vehicle (as I am about the Gravity right now), they really can be a heavy dose.

 

[xponents]

God forbid someone makes a spelling mistake in a forum. Do you call out everyone’s mistakes?

CLEARLY you knew what I meant

Am I just missing something or was clearly spelt correctly?

 

[AirDoll]

Am I just missing something or was clearly spelt correctly?

*spelled

 

[TakeDuo]

*spelled

Spelt sourdough tho

 

[RD7]

I can guarantee the Gravity will be able to charge at full or close to full speeds at superchargers.

I don’t know how they are going to do it, but it would be absolutely idiotic if they didn’t. And Lucid is a lot of things, but idiotic ain’t one of them.

Yes, I have seen the comments to that effect and I believe them, but the hypothesis isn't true until proven, so we're waiting for the explanation. As a NCAS adopter, I can't imagine they could be surprised by the need for a charging architecture that intelligently deals with low-voltage Superchargers, so they must have addressed this in some way. It's the lack of information from Lucid at this stage in the process that is troubling; the design must be complete by this stage, so why the silence? I guess it's just on the increasingly long list of information they need to get out but haven't. I wish they were as good at keeping their customers informed as they are at engineering the car.

 

[flarbear]

Am I just missing something or was clearly spelt correctly?

It may be spelt "Raymond Luxury Yach-t" and pronounced "Throat-Wobbler Mangrove" but it's best communicated by humming it loudly in a medium decibel sing-song voice whilst crooning.

 

[Knucklehead]

Yes, I have seen the comments to that effect and I believe them, but the hypothesis isn't true until proven, so we're waiting for the explanation. As a NCAS adopter, I can't imagine they could be surprised by the need for a charging architecture that intelligently deals with low-voltage Superchargers, so they must have addressed this in some way. It's the lack of information from Lucid at this stage in the process that is troubling; the design must be complete by this stage, so why the silence? I guess it's just on the increasingly long list of information they need to get out but haven't. I wish they were as good at keeping their customers informed as they are at engineering the car.

In one of the many videos I have watched, they said that EU models will still have to use the Wunderbox for lower voltage charging, and consequently those vehicles will have a 50 kW limit. They said because the US model Gravity has the charging port on the rear, they could use a different approach to convert the voltage.

My bet is they are using the motors in a similar way as Hyundai does to convert the voltage and maintain good charging speeds on 400V chargers.

 

[xponents]

*spelled

Oh, the irony!

It may be spelt "Raymond Luxury Yach-t" and pronounced "Throat-Wobbler Mangrove" but it's best communicated by humming it loudly in a medium decibel sing-song voice whilst crooning.

So… English in a nutshell?

 

[illopp00]

In one of the many videos I have watched, they said that EU models will still have to use the Wunderbox for lower voltage charging, and consequently those vehicles will have a 50 kW limit. They said because the US model Gravity has the charging port on the rear, they could use a different approach to convert the voltage.

My bet is they are using the motors in a similar way as Hyundai does to convert the voltage and maintain good charging speeds on 400V chargers.

I think they actually have a full 400V loop for running HVAC and Air Compressors that are also tied into this 400V system.

 

[Knucklehead]

I think they actually have a full 400V loop for running HVAC and Air Compressors that are also tied into this 400V system.

Do you have a reference for that? I am interested to read more about it.

The battery voltage in the Gravity is in the 900V range (similar to Air) as far as I know. So everything on the HV side should be 900V. It is surprising there may be another high voltage circuit running in the car. It seems like the HVAC would run on 12V or 48V. So share your source as it sounds very interesting!

Speaking of 12V, I really want to know what happens to the Gravity if the LVB fails. Can you still get into the car? What is the process for jump starting when dead? Inquiring minds want to know.

 

[Adnillien]

Do you have a reference for that? I am interested to read more about it.

The battery voltage in the Gravity is in the 900V range (similar to Air) as far as I know. So everything on the HV side should be 900V. It is surprising there may be another high voltage circuit running in the car. It seems like the HVAC would run on 12V or 48V. So share your source as it sounds very interesting!

Speaking of 12V, I really want to know what happens to the Gravity if the LVB fails. Can you still get into the car? What is the process for jump starting when dead? Inquiring minds want to know.

The tech review videos for the Air discuss the 10kW medium power inverter that powers HVAC, battery, motor and inverter cooling.

 

[illopp00]

Do you have a reference for that? I am interested to read more about it.

The battery voltage in the Gravity is in the 900V range (similar to Air) as far as I know. So everything on the HV side should be 900V. It is surprising there may be another high voltage circuit running in the car. It seems like the HVAC would run on 12V or 48V. So share your source as it sounds very interesting!

Speaking of 12V, I really want to know what happens to the Gravity if the LVB fails. Can you still get into the car? What is the process for jump starting when dead? Inquiring minds want to know.

Its a bit of speculation, but the original OoS video that Kyle interviewed Eric Bach at the Monterey Car Week video. Kyle asked him whether there was some 'innovation' in the electrical system like 48V wiring etc. Eric stated that the Suspension Air Compressor was 400V. He said they couldn't find a value case for 48V, I mean if you need smaller efficient components, a 400V motor will be better although more expensive.

 

[illopp00]

Here is the link to the segment i keep referencing.

 

[Knucklehead]

Here is the link to the segment i keep referencing.

I watched this video before, but forgot about that section. Thanks for sharing!

BTW - shortly after that section you marked, he says "a fully redundant 12V". I wonder if he means there are two 12V batteries? Or maybe he just means there are two redundant 12V circuits.

An extra 12V battery would be great when one fails. The chances of both failing at the exact same time would be very small. When one fails, the other battery could be used to notify the driver and prevent the vehicle from becoming undrivable. It might take some functions offline, but at least you could get to a safe place before stopping. Or at least you could get in the car and move it a safer place if it fails when the car is off, which is most likely.

 

[illopp00]

I watched this video before, but forgot about that section. Thanks for sharing!

BTW - shortly after that section you marked, he says "a fully redundant 12V". I wonder if he means there are two 12V batteries? Or maybe he just means there are two redundant 12V circuits.

An extra 12V battery would be great when one fails. The chances of both failing at the exact same time would be very small. When one fails, the other battery could be used to notify the driver and prevent the vehicle from becoming undrivable. It might take some functions offline, but at least you could get to a safe place before stopping. Or at least you could get in the car and move it a safer place if it fails when the car is off, which is most likely.

Yeah, that would be nice, think of all the electronically powered systems on the vehicle that redundancy would matter; Rear-wheel steering, power steering, powered doors. I tried googling what the standard voltage level for those actuators are, but it's definitely not 5Vdc.

 

[borski]

I watched this video before, but forgot about that section. Thanks for sharing!

BTW - shortly after that section you marked, he says "a fully redundant 12V". I wonder if he means there are two 12V batteries? Or maybe he just means there are two redundant 12V circuits.

An extra 12V battery would be great when one fails. The chances of both failing at the exact same time would be very small. When one fails, the other battery could be used to notify the driver and prevent the vehicle from becoming undrivable. It might take some functions offline, but at least you could get to a safe place before stopping. Or at least you could get in the car and move it a safer place if it fails when the car is off, which is most likely.

The Air also has two 12v batteries, but they are not redundant. I suspect in this case they actually might be, which would be really smart, since 12v failure has plagued Hyundai/Kia/Genesis, early Lucids, Ford, and like every other manufacturer.

Our Ioniq 5 is going in for yet another ICCU recall in 2 days to prevent the 12v from dying lol; fifth time’s a charm?

 

[Pragmatic]

I don't understand the short battery life. No real large loads are being placed on the 12V system when the vehicle is off (should be the same as an ICE). My current pickup is running its original battery (2009). Sedan I had before it had original battery for the whole time I owned it (2000 - 2016). Yet BEVs are bricking a 12V battery in a year or two without the high starter loads.