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Joel
Feb
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2005

Joel

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Dong U Dead said :
Another reason not to buy electric cars:

Fair Go: Woman stunned as insurance charges full excess despite frying car
https://www.tvnz.co.nz/one-news/new-zealand/fair-go-woman-stunned-insurance-charges-full-excess-despite-frying-car ... that news article is referring to your everyday gas car lol, not an EV. The battery that got 'fried' was the 12v that every vehicle has. :P

Every car you buy today and for the last upwards of 10+ years have more complicated electrical systems, regardless if its a gas car or electric car.

So I'm not sure how that's a valid reason to 'not buy an electric car' lol.

FYI, electric cars also have a separate 12v battery (much like a gas car).

At least with certain EVs, some electrical issues can even be fixed remotely which is way more convenient than taking it to a garage.
Joel

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24-Aug-2021 15:54:54

Rooh
Jan
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2006

Rooh

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I had to revisit this thread. I found an EV I really, really REALLY want:

https://www.topgear.com/car-news/electric/meet-1m-fully-electric-aston-martin-db6
Who's the cat that won't cop out when there's danger all about?

12-Oct-2021 12:44:00

Sjm1992003a

Sjm1992003a

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regarding the EV lacking engine sound, in fact, electric railway trains like metro can produce sound that resemble changing gears despite there is no changing gears, but I dont know why EV produce almost no motor sounds when the electric motor on a railway trains produce noisy sound. In fact, when electric trains are running at very low speed, the motor and inverter produce a very loud sound and such sound vary with the manufacturer of the inverter. Railway fans can guess the manufacturer of the inverters of a train by listening to the sound it produce when the train is running at very low speed.

MTR A train in Hong Kong, that in my opinion it sound like racing car:
https://www.youtube.com/watch?v=6ZXd9GXfRk8

Japan Keikyu 1000, the very famous singing train with Siemens GTO inverter
https://www.youtube.com/watch?v= OC92zC-RcRE

20-Oct-2021 13:04:42 - Last edited on 20-Oct-2021 13:06:04 by Sjm1992003a

Rooh
Jan
fmod Member
2006

Rooh

Forum Moderator Posts: 40,589 Sapphire Posts by user Forum Profile RuneMetrics Profile
Sjm1992003a said :
regarding the EV lacking engine sound, in fact, electric railway trains like metro can produce sound that resemble changing gears despite there is no changing gears, but I dont know why EV produce almost no motor sounds when the electric motor on a railway trains produce noisy sound. In fact, when electric trains are running at very low speed, the motor and inverter produce a very loud sound and such sound vary with the manufacturer of the inverter. Railway fans can guess the manufacturer of the inverters of a train by listening to the sound it produce when the train is running at very low speed.

MTR A train in Hong Kong, that in my opinion it sound like racing car:
https://www.youtube.com/watch?v=6ZXd9GXfRk8

Japan Keikyu 1000, the very famous singing train with Siemens GTO inverter
https://www.youtube.com/watch?v= OC92zC-RcRE

Yep, electric motors definitely produce a sound but it's pretty quiet in the case of EVs.
More and more manufacturers are building in artificially generated sound.
Who's the cat that won't cop out when there's danger all about?

20-Oct-2021 13:30:04

Sjm1992003a

Sjm1992003a

Posts: 386 Silver Posts by user Forum Profile RuneMetrics Profile
btw, recently there was some advancement (announcement) in sodium ion battery

when compared to lithium NCM battery, sodium battery eliminated the usage of rare elements such as Lithium and cobalt, as sodium is a very common element on Earth. Thus the cost of sodium battery is also significantly lower than lithium ion battery.

The sodium battery announced by CATL has energy density as high as 160Wh/kg (they expect 200Wh/kg in their 2nd gen sodium battery), which is slightly smaller than Lithium Iron Phosphate battery. The cycle life of this sodium battery is slightly lower when compared to Lithium ion battery. But this sodium battery has more superior tolerance to very low temperature when compared to lithium battery as lithium battery under very bad under very low temperature. This sodium battery can also charge up very rapidly.

I also heard that Sodium battery may not has as high energy density and cycle life as lithium battery, but its cost is much lower and may fill in the gap between lead acid battery and lithium battery, or even substantially replace lead acid battery.

20-Oct-2021 16:15:43

Rooh
Jan
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2006

Rooh

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I read in the news this morning that all new UK homes and commercial premises now have to have chargers included in the build.

At the moment the number of chargers available here is a joke, particularly away from London and the Southeast.

By 2030 all new cars have to be EVs and at present there's about 10% of the chargers that will be needed.
Who's the cat that won't cop out when there's danger all about?

22-Nov-2021 12:01:53 - Last edited on 22-Nov-2021 12:04:35 by Rooh

Joel
Feb
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2005

Joel

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^ That's definitely positive news. I've just been back in the UK for the week visiting friends and family and my hometown had a few chargers in the town centre which was nice to see. But there's still a long way to go.

EV adoption is going to come pretty quickly over the next 5/10 years and probably quicker than many imagined a few years ago.
Joel

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25-Nov-2021 14:52:21

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