Originally Posted by JHZR2
Originally Posted by ABN_CBT_ENGR
Originally Posted by Dwight_Frye
I am willing to bet that Tesla will be able to provide a 600 mile range by the 2024 model year.
And a charge time that goes from a 20% charge to a 75% charge in 15 minutes.
I'll take that bet because unless they have developed and perfected weapons grade unobtainium with a digital waveform handwavium charger that wont happen with the elements currently on the table regardless of how many investors "believe' in the word technology.
20-75% SOC in 15 minutes is doable. As someone who is involved in the engineering of energy storage systems, so long as that regime is maintained, and thermals are accounted for, I have very little concern. Outside of that range can be a challenge... And note I didnt say anything about energy, just that this SOC range in that time is viable. More energy will need more power and make more heat, and thus a 600 mile version has a good set of other concerns, unless they become so efficient and aerodynamic that the energy consumption in Wh/mile changes drastically too...
For me, Ive driven lots of vehicles with small tanks and relatively short ranges. My old BMW 318 had a small tank, as does my 135i. My 98 S-10 has a small tank and not great MPGs. But what they can all do is get me enough margin over 300 miles to not be concerned with certain trips needing to waste time filling up. And if I did, it was fast.
That's the historical difference between the slow and fast charge. That speed is going to generate excess heat that will degrade the materials of construction even if removed quickly or not. ( just like force feeding is going to choke whether it makes it out the other way or not). I need to see exactly how those percentages are going to be met and at what cost. Specifically in terms to the effect ( long and short) to the battery in terms of additional cost/weight, longevity and safety.
All of those also play a direct part in the ability to deliver that charge ( another heat generator) under say "full load" terms ( not just "riding" but under full load and torque as defined by the motor and its BHP locked rotor requirement)
I can respect and support these vehicles in a market all their own ( and do support the technology and development- don't let there be a question on that at all). I don't directly accuse Tesla per se but many do "promote'" this as the miracle that will save us from ourselves- and simply put, its not and never will be.
What they will have to prove ( and will be challenged) is the area of claims where this is the "replacement" for everything on planet Unicorn.
Some people need these vehicles as a critical tool for making a living- not joy riding with Roxette ( rest her soul). That means a vehicle capable of meeting the requirements on demand through a full range of needs.
I can put a 5 gal can of gas in the back- what about a charge?
What happens when the loaded vehicle requires "X" load to get "Y" torque to get a job done and the battery cant deliver?
Those questions need to be specifically addressed and answered.
I'm not directing or challenging anyone specifically but the working guy who uses his vehicle has to know and be proven of these things or none of the EV's will ever go beyond a certain niche level "toy".
Originally Posted by ABN_CBT_ENGR
Originally Posted by Dwight_Frye
I am willing to bet that Tesla will be able to provide a 600 mile range by the 2024 model year.
And a charge time that goes from a 20% charge to a 75% charge in 15 minutes.
I'll take that bet because unless they have developed and perfected weapons grade unobtainium with a digital waveform handwavium charger that wont happen with the elements currently on the table regardless of how many investors "believe' in the word technology.
20-75% SOC in 15 minutes is doable. As someone who is involved in the engineering of energy storage systems, so long as that regime is maintained, and thermals are accounted for, I have very little concern. Outside of that range can be a challenge... And note I didnt say anything about energy, just that this SOC range in that time is viable. More energy will need more power and make more heat, and thus a 600 mile version has a good set of other concerns, unless they become so efficient and aerodynamic that the energy consumption in Wh/mile changes drastically too...
For me, Ive driven lots of vehicles with small tanks and relatively short ranges. My old BMW 318 had a small tank, as does my 135i. My 98 S-10 has a small tank and not great MPGs. But what they can all do is get me enough margin over 300 miles to not be concerned with certain trips needing to waste time filling up. And if I did, it was fast.
That's the historical difference between the slow and fast charge. That speed is going to generate excess heat that will degrade the materials of construction even if removed quickly or not. ( just like force feeding is going to choke whether it makes it out the other way or not). I need to see exactly how those percentages are going to be met and at what cost. Specifically in terms to the effect ( long and short) to the battery in terms of additional cost/weight, longevity and safety.
All of those also play a direct part in the ability to deliver that charge ( another heat generator) under say "full load" terms ( not just "riding" but under full load and torque as defined by the motor and its BHP locked rotor requirement)
I can respect and support these vehicles in a market all their own ( and do support the technology and development- don't let there be a question on that at all). I don't directly accuse Tesla per se but many do "promote'" this as the miracle that will save us from ourselves- and simply put, its not and never will be.
What they will have to prove ( and will be challenged) is the area of claims where this is the "replacement" for everything on planet Unicorn.
Some people need these vehicles as a critical tool for making a living- not joy riding with Roxette ( rest her soul). That means a vehicle capable of meeting the requirements on demand through a full range of needs.
I can put a 5 gal can of gas in the back- what about a charge?
What happens when the loaded vehicle requires "X" load to get "Y" torque to get a job done and the battery cant deliver?
Those questions need to be specifically addressed and answered.
I'm not directing or challenging anyone specifically but the working guy who uses his vehicle has to know and be proven of these things or none of the EV's will ever go beyond a certain niche level "toy".
