RE: Koenigsegg - Geneva 2015
Discussion
Adam197 said:
Cant wrap my head around how this single gear drive can work, especially with the mental power & inevitably ridiculous top end.
Anyone care to dumb it down?
Sounds fantastic anyway, if this works then hats off to K'egg for getting it to production before any of the big boys.
Basically, without any form of gearbox between the electric machines (motors) and the drive wheels, and nor between the Internal combustion engine and the drive wheels you effectively have made a car that only can produce maximum power at a single vehicle speed. Unlike for say a modern 8spd autobox where there are 8 vehicle speeds corresponding to peak engine power (which of course is the POINT of a gearbox.Anyone care to dumb it down?
Sounds fantastic anyway, if this works then hats off to K'egg for getting it to production before any of the big boys.
And electric machines, just like ICE's also only make peak power at a set single speed. Sure, they make high torque at low rpm, but torque is NOT power. So, you have say a 500kW electric machine, but only if you happen to be travelling at a vehicle speed that corresponds to that power speed. You can't simply add the electric power to the ICE power neither, unless they are both geared to make peak power at the same vehicle speed, which is highly improbable (with electric motors making peak power at typically half there maximum rotational speed, unlike ICEs that make it close to max rotational speed)
So at say 20mph, you have low electrical power, and low ICE power. In effect, this car manages to take the total performance (1500bhp claimed....) and really only effectively leverage about 2/3s of it at best.
I've been thinking about how this works for at least 45 mins now and I just cannot even begin to imagine a petrol engine without any gears - or many of it's other claims
"Below 30mph it runs entirely on electricity" and "it's electric only range is 22 miles" and nowhere did I read that it charges it's battery on-the-move - so it's limited to 22 miles for many people then?
"It will auto-discharge it's battery on the way home to ensure it's ready for a full charge" - erm, that's not how lithium batteries work - is it running Ni-Cads
As someone else said, if the engine is revved-out at 249mph - you'll use < 30% of it on any public road outside Germany - that makes no sense whatsoever (having no gears on a petrol engine makes no sense to me anyway)
So it's basically the world's most expensive/short-range dragster?
"Below 30mph it runs entirely on electricity" and "it's electric only range is 22 miles" and nowhere did I read that it charges it's battery on-the-move - so it's limited to 22 miles for many people then?
"It will auto-discharge it's battery on the way home to ensure it's ready for a full charge" - erm, that's not how lithium batteries work - is it running Ni-Cads
As someone else said, if the engine is revved-out at 249mph - you'll use < 30% of it on any public road outside Germany - that makes no sense whatsoever (having no gears on a petrol engine makes no sense to me anyway)
So it's basically the world's most expensive/short-range dragster?
I'm fairly sure a fluid coupling can act as a rudimentary CVT but not particularly efficiently. One presumes that the engine will be acting as a generator for the motors most of the time, and excess power requirements for the wheels will come from "stiffening" up the fluid coupling to engine.
Although vaguely knowing a few K'egg owners, I dread to think what the reliability will be like with all this complexity. The old school ford V8 ones are apparently woeful in that respect and they are about as complex as a pint of beer.
Although vaguely knowing a few K'egg owners, I dread to think what the reliability will be like with all this complexity. The old school ford V8 ones are apparently woeful in that respect and they are about as complex as a pint of beer.
405dogvan said:
I've been thinking about how this works for at least 45 mins now and I just cannot even begin to imagine a petrol engine without any gears - or many of it's other claims
"Below 30mph it runs entirely on electricity" and "it's electric only range is 22 miles" and nowhere did I read that it charges it's battery on-the-move - so it's limited to 22 miles for many people then?
"It will auto-discharge it's battery on the way home to ensure it's ready for a full charge" - erm, that's not how lithium batteries work - is it running Ni-Cads
As someone else said, if the engine is revved-out at 249mph - you'll use < 30% of it on any public road outside Germany - that makes no sense whatsoever (having no gears on a petrol engine makes no sense to me anyway)
So it's basically the world's most expensive/short-range dragster?
The V8 charges the battery. "Below 30mph it runs entirely on electricity" and "it's electric only range is 22 miles" and nowhere did I read that it charges it's battery on-the-move - so it's limited to 22 miles for many people then?
"It will auto-discharge it's battery on the way home to ensure it's ready for a full charge" - erm, that's not how lithium batteries work - is it running Ni-Cads
As someone else said, if the engine is revved-out at 249mph - you'll use < 30% of it on any public road outside Germany - that makes no sense whatsoever (having no gears on a petrol engine makes no sense to me anyway)
So it's basically the world's most expensive/short-range dragster?
The way in which cars have moved on over the last few years has been incredible. If, in 2005, you'd have said that there would be a hybrid car producing well in excess of 1000bhp in ten years time you would have been called a madman.
Whether or not you like Koenigsegg, you must admit that the figures are impressive. Also, it is refreshing to see such bold ideas not only being suggested, but put into practice.
I can't help but wonder what it will sound like with no gears though. I'd imagine that driving it would be rather disconcerting to drive at first as well. It's a lovely looking thing as well.
Whether or not you like Koenigsegg, you must admit that the figures are impressive. Also, it is refreshing to see such bold ideas not only being suggested, but put into practice.
I can't help but wonder what it will sound like with no gears though. I'd imagine that driving it would be rather disconcerting to drive at first as well. It's a lovely looking thing as well.
Chebble said:
The way in which cars have moved on over the last few years has been incredible. If, in 2005, you'd have said that there would be a hybrid car producing well in excess of 1000bhp in ten years time you would have been called a madman.
Whether or not you like Koenigsegg, you must admit that the figures are impressive. Also, it is refreshing to see such bold ideas not only being suggested, but put into practice.
I can't help but wonder what it will sound like with no gears though. I'd imagine that driving it would be rather disconcerting to drive at first as well. It's a lovely looking thing as well.
if you had said basic entry level supercars would have 650bhp+ people would have laughed at you, the F50 only had 513bhp!!Whether or not you like Koenigsegg, you must admit that the figures are impressive. Also, it is refreshing to see such bold ideas not only being suggested, but put into practice.
I can't help but wonder what it will sound like with no gears though. I'd imagine that driving it would be rather disconcerting to drive at first as well. It's a lovely looking thing as well.
Edited by Dave Hedgehog on Wednesday 4th March 13:31
I have to respect Koenigsegg massively. Though there seems to be a whole lot of technical cleverness there, there still seems to be a good dose of '10 year old boy designs his idea of a hybrid'.
It's like a much higher cost / budget version of what Lamborghini used to be regarded as. You can almost imagine that haribo and energy drink being the snacks served at a Koenigsegg design meeting. In fact you could say there is a hint of Peter Wheeler (TVR) going on here but in a much more technical / expensive environment. Why go 7/10ths when you can go 11/10ths..
?
It's like a much higher cost / budget version of what Lamborghini used to be regarded as. You can almost imagine that haribo and energy drink being the snacks served at a Koenigsegg design meeting. In fact you could say there is a hint of Peter Wheeler (TVR) going on here but in a much more technical / expensive environment. Why go 7/10ths when you can go 11/10ths..
?C von K can be heard talking about his latest creation here:
https://www.youtube.com/watch?v=sr1jylROsqQ
https://www.youtube.com/watch?v=sr1jylROsqQ
Fully robotic body! That is bloody ridiculously sensible. Sensors to prevent body panels crashing into kerbs and parked cars etc, all just using hydraulic actuators (powered off the ride height control hydraulic system) instead of the standard gas struts. Don't even have to touch the boot or doors to open them.
Now that is a technology I can see filtering down into the real world. It'd go great on a Tesla I think, with the "touch the car where you want it to unlock" key fob...
Now that is a technology I can see filtering down into the real world. It'd go great on a Tesla I think, with the "touch the car where you want it to unlock" key fob...
With EVO:
https://www.youtube.com/watch?v=YWm8xEapjuQ
So it's 1800 hp ICE and E and churns out a combined 1500 hp and by the looks of it they're using 12000 rpm motors to match up the power curves. Redline is 8250 rpm so the e-motors' power starts dropping off at around 186 mph.
The redundancy of the "wasted" 300 hp seems like a fair trade-off for all the gains in relative weight, performance, power, delivery, range and sub-186mph efficiency.
https://www.youtube.com/watch?v=YWm8xEapjuQ
So it's 1800 hp ICE and E and churns out a combined 1500 hp and by the looks of it they're using 12000 rpm motors to match up the power curves. Redline is 8250 rpm so the e-motors' power starts dropping off at around 186 mph.
The redundancy of the "wasted" 300 hp seems like a fair trade-off for all the gains in relative weight, performance, power, delivery, range and sub-186mph efficiency.
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