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Ohlins 2 Wheel Drive

<div class='quotetop'>QUOTE (BarryMachine @ May 21 2009, 02:45 PM) <{POST_SNAPBACK}><div class='quotemain'>Ok again ..... what do you actually disagree with in what I said? ..... though I suspect as per your answer you don't care about content you just get on and have a sook at me
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SO come on put two words together and tell me what you disagree with what I said? and why?
same ol same ol eh barry !

you talk out of your arse then start asking loads of questions because you need to feed off others to carry on your bollocks. You are yet to tell us why hydraulics are so very inefficient for dynamic work and why electric is better. So enough of your normal name calling and get to the point !.
 
<div class='quotetop'>QUOTE (roger-m @ May 22 2009, 12:33 AM) <{POST_SNAPBACK}><div class='quotemain'>same ol same ol eh barry !

you talk out of your arse then start asking loads of questions because you need to feed off others to carry on your bollocks. You are yet to tell us why hydraulics are so very inefficient for dynamic work and why electric is better. So enough of your normal name calling and get to the point !.


Read my first post Rog. .... I would have thought it could not have got any simpler
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But as usual you read one word ........ " Barrymachine" then prepare your insightful reply.

Sent any bitchy sooky PM's lately Rog.?

What a total ......
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and you were knocking Pinky
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you guys are identical too him but you can't even see it
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<div class='quotetop'>QUOTE (BarryMachine @ May 22 2009, 12:43 AM) <{POST_SNAPBACK}><div class='quotemain'>Sent any bitchy sooky PM's lately Rog.?

What a total ......
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and you were knocking Pinky
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you guys are identical too him but you can't even see it
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Barry, why bicker yourself then? just answer the question.
 
<div class='quotetop'>QUOTE (Arrabbiata1 @ May 22 2009, 09:45 AM) <{POST_SNAPBACK}><div class='quotemain'>Barry, why bicker yourself then? just answer the question.


What is the question?

I haven't seen any one question asked that I have not given an answer too.

Specify to me what you feel you want to know from me


All I've seen so far is a post I put up alludung to the thought that these systems failed but may make a comeback in the electric era.

There has been no substantial questioning or answering since then ..... just Rog. and his mates answering to seeing the name "Barrymachine"


Put a question to me ...
 
<div class='quotetop'>QUOTE (BarryMachine @ May 22 2009, 12:51 AM) <{POST_SNAPBACK}><div class='quotemain'>What is the question?

I haven't seen any one question asked that I have not given an answer too.

Specify to me what you feel you want to know from me


All I've seen so far is a post I put up alludung to the thought that these systems failed but may make a comeback in the electric era.

There has been no substantial questioning or answering since then ..... just Rog. and his mates answering to seeing the name "Barrymachine"


Put a question to me ...
<div class='quotetop'>QUOTE (roger-m @ May 21 2009, 03:33 PM) <{POST_SNAPBACK}><div class='quotemain'>same ol same ol eh barry !

you talk out of your arse then start asking loads of questions because you need to feed off others to carry on your bollocks. You are yet to tell us why hydraulics are so very inefficient for dynamic work and why electric is better. So enough of your normal name calling and get to the point !.

Just read the thread, its not hard. Actually, if I'm honest, I'm not remotely interested in your answer, you have a knack of making any topic about as enticing and engrossing as a freshly laid steaming turd
 
<div class='quotetop'>QUOTE (Arrabbiata1 @ May 22 2009, 09:59 AM) <{POST_SNAPBACK}><div class='quotemain'>Just read the thread, its not hard. Actually, if I'm honest, I'm not remotely interested in your answer, you have a knack of making any topic about as enticing and engrossing as a freshly laid steaming turd

just as I thought ....... no question .... just schoolgirl bitching
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Whats the difference between you and Pinky?
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At least he posts topics that get some discussion going ..... ok he's about as sbtle as a sledgehammer but in the end his bitching does prompt thought.
 
I mostly stopped reading when the slagging started on the previous page, but in my previous research (I'm studying motorcycle design) into 2WD bikes, the biggest problem is assigning the right amount of power to the front wheel, because it plays such an important role in grip and directional changes, any miscalculation would spin it out of control. It's not really enough to just assign a ratio proportional to the rear wheel, because you can spin the rear and still stay in control. Spin the front, and it's likely you die.

It's a promising technology, but still too early to put out there for the average consumer. Most people have problems doing maintenance for 1 wheel.

Another problem is delivery of power. Hydraulics aren't exactly efficient, just look at slush boxes. The ideal system would involve a front setup similar to the Bimota, a center hub steering, but that's not exactly mainstream or race-proven either.

For a proper 2WD, you'll need either hub steering or an inwheel motor for the front, followed by tons of electrics to calculate the necessary power ratios between F and R. Either of those are still decades away.
 
Excellent post Heng ^^^^ at last some real info.

Early test riders also complained about the thing actually wanting to pull straight too much, which was kinda odd as it was meant to help go around the corner
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But yeah I think having 2WD will necessitate differing trail, caster, track etc. and thats as well as the power sharing problems?

But still I think the driving an extra Hydraulic pump killed the thing. But that won't matter if they come up with an in wheel electric motor and then as you say its all just a matter of electronics.
 
<div class='quotetop'>QUOTE (Arrabbiata1 @ May 22 2009, 12:45 AM) <{POST_SNAPBACK}><div class='quotemain'>Barry, why bicker yourself then? just answer the question.
exactly. he cant so he starts bullshitting and name calling
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waste of all our time imo. I asked a simple polite question and look at the reply i got !
 
<div class='quotetop'>QUOTE (roger-m @ May 22 2009, 09:33 AM) <{POST_SNAPBACK}><div class='quotemain'>exactly. he cant so he starts bullshitting and name calling
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waste of all our time imo. I asked a simple polite question and look at the reply i got !
Rog the trouble with berrybullshitter is his all encompassing generalisations littered with ad hoc techno babble. This leads to his cherry picking and moving goal posts argument technique with a smattering of knowitall thrown in...when this fails sook ........ etc etc come out to play...then you get 'ask me a question'

My error was to reply to the BS. (But I await his electric bike with much anticipation, maybe he will enlighten us of the efficiency of this machine compared to the efficiency of the IC engine, should be worth a laugh...but will not hold my breath)
 
I see your problem now .... chocko asked me that did he
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one tends not to notice such substance when you guys launch into one of your schoolgirl ..... sessions. Try sticking to the substance from now on.

ok I was assuming a bit much.

I believed you all knew of the losses in hydraulics, its like saying fire is hot to engineering folk. Yet it does have a place in some other drive mechanisms.

Ok as to why, the viscosity of the oil causes a lot of drag ( even light oils ) they tend to want to stick to parts they flow over. And these systems don't dump the oil they return it for re-use so its even more drag in the hoses. The higher the flow rate the more drag you get because being of relatively high viscosity ( compared to say water or even white spirits say ) To demonstrate this blow softly through a thin straw ..... then blow hard .... the effort for little gain is disproportionate. In laminar flow the surface contacting layers ( not actually a layer but for the purposes of analysis described as that ) flow slowest as each subsequent layer towards the middle attempts to flow faster the more energy is required for it to

oh bugger ..... read this Rog. and go from there http://www.engineersedge.com/fluid_flow/co...ty_equation.htm
and this:
http://www.efunda.com/formulae/fluids/calc_pipe_friction.cfm

I spent a few years learning all that years ago ..... you spend a few minutes now .... and maybe you'll get it too

The pump, to get high power out you need a bypass to protect the system from peak loads, thats an innefficiency in most hydraulic systems.

The hydraulic motor ( like the one in the hub ) ... depending on the design a certain amount of energy in the oil is required to return the oil to the pump. Again the higher the flow the more power is lost .


Electric are not out there yet, well not hugely commercially yet in bikes ..... but I can see hub/wheel motors eradicating the inefficiencies of other forms of motors. Many mining trucks use such a system. Only they have an onboard diesel to generate the power eg. http://books.google.com.au/books?id=4-Kkj5...snum=1#PPA63,M1

Whats your game/profession Rog?. .... so I can ask you something that seems blatantly obvious to you but that you might need to explain to me ..
 
Wow.... another insightful thread!!! Amazing. If I can correctly read this thread.... then clarkie put up a good article to read and a few people commented. Barry put up a comment about elecrtic being the way of the future and suddenly all the people who hate his comments come out and don't argue about what he has to say, they just attack him personally.. Amazing! Chockmoose,isn't it? Seriously, doesn't your avatar say it all?
 
<div class='quotetop'>QUOTE (Son of Doohan @ May 22 2009, 04:34 PM) <{POST_SNAPBACK}><div class='quotemain'>Wow.... another insightful thread!!! Amazing. If I can correctly read this thread.... then clarkie put up a good article to read and a few people commented. Barry put up a comment about elecrtic being the way of the future and suddenly all the people who hate his comments come out and don't argue about what he has to say, they just attack him personally.. Amazing! Chockmoose,isn't it? Seriously, doesn't your avatar say it all?

Insightful? obfuscated more correctly.
Clarkie did put up an interesting article until it was hijacked by ........ generalisations,
oh and avatar maybe too subtle for you eh?
Anyroad, I do not feel any need to involve myself in a pissing competition with you 'experts'.
 
<div class='quotetop'>QUOTE (Son of Doohan @ May 23 2009, 01:34 AM) <{POST_SNAPBACK}><div class='quotemain'>Wow.... another insightful thread!!! Amazing. If I can correctly read this thread.... then clarkie put up a good article to read and a few people commented. Barry put up a comment about elecrtic being the way of the future and suddenly all the people who hate his comments come out and don't argue about what he has to say, they just attack him personally.. Amazing! Chockmoose,isn't it? Seriously, doesn't your avatar say it all?
Flavor of the Week Winner is BarryMachine Its time to jump on the "bash Barry bandwagon" .... Yes, it's very mature. ...

There are quite a few 'experts' getting around here these days...
 
<div class='quotetop'>QUOTE (chockmoose @ May 23 2009, 04:45 AM) <{POST_SNAPBACK}><div class='quotemain'>Anyroad, I do not feel any need to involve myself in a pissing competition with you 'experts'.

try pissing harder and harder ...... then you'll get the picture as to why Hydraulics failed.
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Geoff Aaron placed 3rd in last years maxxis enduro race on a 2 wheel drive KTM...

You can see the the large cable like connection going up along the fork/s.

6930:2008_EX_...vo_Photo.jpg]

6931:Christin...uperMoto.jpg]
 

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