When are you going fully electric?
- Thread starter Ricochet J
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7kw and 2.3kw are both AC charging at same voltage, will it not have the same inefficiencies?
Whilst that's a fair comment you can look at the smaller Volvos etc and see the trend that Volvo/Polestar tend to be behind the curve.
Soldato
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I visited my folks a few weeks back and there is no charging near them. I granny charged in around 60kwh in just over 24hrs. I wouldn't choose to do it all the time personally but there was no drama.
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Nah polestars are decent real world. Need to stop comparing tiny shopping car konas etc to actual performance cars.
The charger electronics are optimised around the peak current. Ie 32A on 7kW single phase so it’s just not as efficient with lower current trickling, a bit like an engine really, better volumetric effectively when it’s pumping the air its design to do. The switching IGBTs are turning 230V AC into the HV bus DC. So the have a upvoltage awell with the DCDC power electronics working outside their peak window.
The charger electronics are optimised around the peak current. Ie 32A on 7kW single phase so it’s just not as efficient with lower current trickling, a bit like an engine really, better volumetric effectively when it’s pumping the air its design to do. The switching IGBTs are turning 230V AC into the HV bus DC. So the have a upvoltage awell with the DCDC power electronics working outside their peak window.
I think the logic is that, the slower you charge, the longer additional systems are active that have additional power draw. So, fans power management etc.
By charging faster you're wasting less energy. Once complete the car can go into a sleep state.
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Soldato
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E Niros are an odd car (iirc they share a lot of hardware with the Kona but don't quote me on that). they are not even a dedicated EV platform, and they are a decent (nissan QQ SUV) size and yet they can still get north of 4 miles/kWh which I think is impressive for such a decent sized car.
As does the EV6. South Korea drivetrains are very efficient for their specs.
With the Audi, I can see where all the energy is going. There's so much being wasted all the time. Even in eco mode it's just throwing energy at everything all the time.
With the Audi, I can see where all the energy is going. There's so much being wasted all the time. Even in eco mode it's just throwing energy at everything all the time.
I'd love to know, as I'm sure would VW Group. But, throw it does. Over a normal journey, being particularly conservative, 2.8 is the best I can achieve in it.
There's a lot of systems that are always active that must drain a fair amount. The ac/heating I suspect is very inefficient as is the drive. The pre-sense is always active and doing things.
There's a lot of systems that are always active that must drain a fair amount. The ac/heating I suspect is very inefficient as is the drive. The pre-sense is always active and doing things.
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2.8 the best? wow that is bad... I mean if I drive like a teenage chav I can get my ipace down to sub 2.0 but if I TRY to drive it well on eco I have seen rarely 4.0 or even 4.1.
my trip to my folks which bear in mind was mostly motorway , with the car set to max speed of 74mph my average was 3.3 per mile. not great by ENiro standards but not that bad either.
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A 10W system isn’t doing anything. Do you thing charging your phone also has an effect ??
No, but I suspect it's a multitude of lots of little things that on their own seem insignificant, but when combined adds up to a lot of wasted energy.
Soldato
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Great by 400bhp performance car standard. E-Niro comparison is no longer legal on these forums
Went to a nearish macdonalds with a mate tonight in my other car, b roads only, 8.8mpg. Next will be saying how crap it is cos there Audi estate gets 40mpg…As the car battery can power a house for a week or something. A few small things running is hardly going to "drain" the battery in a very short time.
Like what exactly that’s unique to that car. Aircon is the significant one as I assume you aren’t using the heaters. But aircon is prob 80-1200W
Not sure about that. Kids don't bat an eyelid at a Tesla, but they will run over to look at exotic stuff, including classics.
Soldato
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Large generalisation there. The only car I’ve had where a mate text back asking if he could pop over to show his 9 year old son was a Model S 
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Tesla is definitely widely perceived as a luxury brand in my experience - our workplace has various BMWs, Audis, Jags etc. but when someone turned up in a Tesla one day you'd think he'd just rolled up in an Aston or something.
Your typical enthusiast might not be impressed at the build quality or features but to suggest people view them as the 'new Mondeo' is laughable.
Your typical enthusiast might not be impressed at the build quality or features but to suggest people view them as the 'new Mondeo' is laughable.