VW hoping to challenge Tesla

On Wednesday, 2 December 2020 at 19:27:20 UTC-8, snipped-for-privacy@gmail.com wr ote: ...

hey may be able to take up to about twice the power of existing vehicles wh ile charging. The wiring would then be the limit.

l reading of a new station the other day that was some large number of unit s and all V3, 250 kW.

The wiring from the charger to the battery, both internal and external, inc luding the connector.

The connector is the main limit - uncooled CCS connectors are rated at 200A , Tesla pushes theirs to 300A even though there are no significant design d ifferences. Cooled CCS connectors are rated at 500A.

One of the limits of the external wiring is weight; how much is convenient for customers to handle. Tesla's sensible standardization of the placement of the charging connector and the design of their Superchargers allow a ver y short cable to be used. Some of the cables on other vendors' chargers (eg Chargepoint) are in the region of 20 feet long - they even have to have a mid-span support because of the weight. Liquid cooling can also help here. ...

Electrify America's chargers support CCS up to 350kW. They are all over the US. Not as good a coverage as Tesla but pretty good. I see they have one o nly about 1/2mile from me.

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t or dry? lol) is only meaningful to a race car driver where they win or lo se by inches. I guess the Porsche could be made with an 89 kWh battery.

A weight reduction of a car is worth quite a few dollars per pound. A frien d used to work for Ford Heavy Truck division and he recounted how they woul d even weigh every nut, bolt, washer etc to determine and control vehicle w eight - it is important for all vehicles.

e and only has meaning when considering all the parts. Tesla has done a gre at job of considering nearly every aspect of owning an EV. But in some few years nearly everyone will be selling EVs in numbers and nearly everyone wi ll be buying them and charging in their garage on a 6 kW charger.

I'm not criticizing Tesla, I have one, it's performance and design is very good with few shortcomings.

Definitely, it is the overall design that is important but going to a highe r voltage has now become much cheaper because of, among other things high v oltage silicon carbide FETs, which allows options that weren't economically available previously and can improve the design and user appeal.

Even though most charging occurs at home ( I've only used Superchargers a h andful of times) reducing the charging time not only adds to the user exper ience but increases the return on the charging infrastructure investment as they can charge a greater number of vehicles in a given time. ... kw

On Thursday, December 3, 2020 at 5:37:03 PM UTC-5, snipped-for-privacy@kjwdesigns.com wro te:

they may be able to take up to about twice the power of existing vehicles while charging. The wiring would then be the limit.

all reading of a new station the other day that was some large number of un its and all V3, 250 kW.

ncluding the connector.

0A, Tesla pushes theirs to 300A even though there are no significant design differences. Cooled CCS connectors are rated at 500A.

If the current charger technology can charge the batteries as fast as they can be charged, how can it be the limiting factor in charge time? My und erstanding is the V3 Superchargers did use cooled cables.

t for customers to handle. Tesla's sensible standardization of the placemen t of the charging connector and the design of their Superchargers allow a v ery short cable to be used. Some of the cables on other vendors' chargers ( eg Chargepoint) are in the region of 20 feet long - they even have to have a mid-span support because of the weight. Liquid cooling can also help here .

Yes, but that still isn't the limit to charging time which is the batteries .

he US. Not as good a coverage as Tesla but pretty good. I see they have one only about 1/2mile from me.

er/)

You are right! So if you have a Porsche you can charge even faster than t he Teslas, if you don't mind stopping more often with the shorter range.

wet or dry? lol) is only meaningful to a race car driver where they win or lose by inches. I guess the Porsche could be made with an 89 kWh battery.

end used to work for Ford Heavy Truck division and he recounted how they wo uld even weigh every nut, bolt, washer etc to determine and control vehicle weight - it is important for all vehicles.

ole and only has meaning when considering all the parts. Tesla has done a g reat job of considering nearly every aspect of owning an EV. But in some fe w years nearly everyone will be selling EVs in numbers and nearly everyone will be buying them and charging in their garage on a 6 kW charger.

y good with few shortcomings.

her voltage has now become much cheaper because of, among other things high voltage silicon carbide FETs, which allows options that weren't economical ly available previously and can improve the design and user appeal.

handful of times) reducing the charging time not only adds to the user exp erience but increases the return on the charging infrastructure investment as they can charge a greater number of vehicles in a given time.

If there are a greater number of vehicles to charge. It's more like they c an spend less money to provide the same level of support. People talk abou t not wanting an EV until it's just like a car, filling the tank in 10 minu tes, but the reality is why worry about something you will do so infrequent ly? I haven't been to a gas station in... maybe this year, not sure. No, I guess I've hit the Haymarket Sheetz to charge a few times this year. Oth erwise it is charging at home. Before I didn't bother with charging at ho me as I would need to charge twice before reaching home if I charged at hom e or not. But I'm doing the long drive much less often and the car does dr ain itself even if they have improved on that significantly since I bought it. That's one of the amazing things about a Tesla. There are plenty of n ew features the old cars will never get (by "old" I mean anything not on th e showroom floor) but there are many new features they distribute for free. I do wish they would put some effort into making the intermittent wipers work, and the auto headlights, and the...

You get the idea.

--

Rick C. 

--+ Get 1,000 miles of free Supercharging 
--+ Tesla referral code - https://ts.la/richard11209

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el and driving over 55 MPH Wastes Resources.

This is standard denialist propaganda. It's perfectly true that not using m uch energy leads to less CO2 being injected into the earth's atmosphere, bu t it's a trivial solution.

Serious environmentalists recognise that we need to be able to get our ener gy in ways that don't mess up the environment, and are interested in soluti ons that deliver the amount of energy that we want. They do exist, but they don't make money for the people who pay for the denialist propaganda that John Larkin laps up.

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Bill Sloman, Sydney

They didn't need to when they did it, but it was cheaper than doing what they should have done.

That's capitalism for you - you do need to regulate free markets to stop them degenerating into criminal conspiracies to rip off the customers (and Adam Smith was well aware of this back in 1776).

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Bill Sloman, Sydney

rote:

f-is-dead/

trim.

cel and driving over 55 MPH Wastes Resources.

much energy leads to less CO2 being injected into the earth's atmosphere, but it's a trivial solution.

ergy in ways that don't mess up the environment, and are interested in solu tions that deliver the amount of energy that we want. They do exist, but th ey don't make money for the people who pay for the denialist propaganda tha t John Larkin laps up.

Hey SL0W MAN, the way to get reliable energy free of CO2 is nuclear.

:

energy in ways that don't mess up the environment, and are interested in so lutions that deliver the amount of energy that we want. They do exist, but they don't make money for the people who pay for the denialist propaganda t hat John Larkin laps up.

Nuclear power enthusiasts have been telling everybody this for decades now. There are now quite a few cheaper ways of generating electricity without b urning fossil carbon and dumping the CO2 produced into the atmosphere, but if you are silly enough to think that nuclear fission is a good way to gene rate power, you seem to be too silly to learn about the cheaper, safer alte rnatives which don't involve investing millions and then waiting years for any power to be generated.

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Bill Sloman, Sydney