Yeah but it sells magazines to the vacuous hordes eh!Originally Posted by motobob
Forum whore
Yeah but it sells magazines to the vacuous hordes eh!
bikes
fly by wire has been around on prototype motorcycles for years - although not in production bikes. Even I have been doing various designs (mainly on the clutch side)on and off for a while - just to experiment with theory.
All it means is that there is an electronic circuit between the switch and the device being controlled. The switch being the throttle, clutch, gear lever or brake levers and the devices - the units each of those controls.
The gear change system used on GP bikes is a classic varient of this - although they dont use a downshifter because it removes the tactile feel you need to control the bike.
The throttle is an easy one to do because its only a position sensor anyhow - the tactile feel is provided by a spring return and the feel thru the chasis (including engine noise). Whether there is a physical cable or not makes no difference because most riders wouldnt be able to tell.
All that throttle position tells the machine is what part of the carb circuit to use and if thats mapped on to electronic ignition it doesnt even have to do that (road speed takes over that job). The throttle then turns into a percentage of maximum capable speed (so if the bike is capable of 180mph, 50% throttle means 90mph).
They build in tactile feedback because your average road rider wiggles the throttle all over the place, where a good rider will be very precise every time in setting the throttle position. The tactile feedback is what newbie riders associate with performance - so without it -the bike would get bad reviews.
If you really want to bend your mind round it a bit, have a look at an F1 car. The steering wheel isnt connected to anything
The contents of this post are my opinion and may not be subjected to any form of reality
It means I'm not an authority or a teacher, and may not have any experience so take things with a pinch of salt (a.k.a bullshit) rather than fact
For whom the bell tolls
i know it will only drain minimal power, but is this not taking away from the engines main function... powering the bike. NOT electric motors to control the throttle bodies/injectors?
KiwiBitcher
where opinion holds more weight than fact.
It's better to not pass and know that you could have than to pass and find out that you can't. Wait for the straight.
Seated in heavenly places
Interesting new technology indeed, but I havn't even owned a fuel-injected bike yet, so my *fly-by-wire* experience can wait for a few years until I've tried some of the old technology first!
BACTERIA
The 'bird isn't FI? Hmm, learn something new every day...Interesting new technology indeed, but I havn't even owned a fuel-injected bike yet, so my *fly-by-wire* experience can wait for a few years until I've tried some of the old technology first!
Aargh, photos!
Not too keen on it. Yet another expensive gadget to go wrong and instead of spending $40 on a cable, you are now spending $900 on diagnosis, repairs, testing and new Hooesamajigets.
To every man upon this earth
Death cometh sooner or late
And how can a man die better
Than facing fearful odds
For the ashes of his fathers
And the temples of his Gods
Seated in heavenly places
Birds came out in 97 carbed and in 99 changed to EFI...I have a 97.
C'mon lets ride....
Was bound to happen on proddy bikes and good on the tuning fork company for giving it a shot. Wonder if they test bedded the system on their pianos first?
Oh and I'll stick with cables for a tinsy winsy bit longer.
Immature and proud of it.
The RC211v has a hybrid electronic/ mechanical throttle. The basic idea is to give consistant torque control per degree of throttle movement in various gear ratios.
Speed doesn't kill people.
Stupidity kills people.
Forum whore
The Alfatoy has fly by wire throttle. To be honest, you'd never know it. Then again, a cage is different to a bike in terms of how closely one is connected to the machinery. And I just don't like the idea. Cos I'm old fashioned. And I like to poke and prod for myself, not have a computer decide for me. The rot started with vacuum advance and retard, and those damn little swinging weights in the distributor. I reckon the handlebars of bikes should be covered with levers to adjust everything.
Team Brehaut Racing
I'm figuring that if Garry McCoy and Colin Edwards couldn't handle it on a fully fledged multi million dollar race bike, then I ain't even gonna try it on a road back. That's Yamaha off the race bike list.
Rest In Peace
That was a few years ago now, and it was still in it's delvelopment stage, i'm pretty sure Kenny Roberts had a fly by on his suzuki round the same time, it took a few riders to sort out and test at the time and it wasn't always smooth sailing for them, like edwards. But now i think you'll find that all motogp bikes have the same or simalar set up to a fly by system.
It was only a matter of time before they brought it out on a road bike, well done to yamaha, stepping up the game once again.
Team Brehaut Racing
Yes, it has been tried by more than just Aprilia but nope, most of the riders refuse to use that technology as they do not have the 'feel' of a cable operated throttle.
wheelchair rookie
No, I don't think you got it wrong.
Sounds like me playing moto gp2 & 3 on xbox. That is, playing with a controller in a comforty seat with a big telly in frount of me. This is all good and fine when its raining, but not my idea of fun when I wish to do some actual riding...
Those who insist on perfect safety, don't have the balls to live in the real world.
bikes
Tactile: "Of or relating to the sense of touch"
Its a silly belief to think that in fly by wire you dont have any feel of whats going on. As I said in my earlier post - they build tactile feeling into the control. For the throttle, its not needed - using throttle feel just retards your capability on the bike - what they might do, after bimota finding out the hard way with the v-due is to set some slack in the movement. By slack its meant that a delay is added to the control being moved and its effect being felt. This delay is done to mirror the fuel pickup delay that occurs in carb based bikes. Its also deliberately built into FI bikes as well (it stops idiot journalists bitching I guess).
As I said, a good rider that can set the throttle precisely for each move wont need that delay (watch them feeling the shifts out with the clutch instead) - you can tell when a bike is set up with a reduced delay because noob riders pogo around trying to work out how the throttle works.
I guess the best way of describing it is when you move to a 1/4 turn throttle from the 1/2 turn ones.
The contents of this post are my opinion and may not be subjected to any form of reality
It means I'm not an authority or a teacher, and may not have any experience so take things with a pinch of salt (a.k.a bullshit) rather than fact
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