Ausmini
It is currently Sat Jun 21, 2025 10:32 pm

All times are UTC + 10 hours




Post new topic Reply to topic  [ 7 posts ] 
Author Message
 Post subject: Brakes - Research
PostPosted: Fri Jan 20, 2006 4:33 pm 
Offline
1275cc
1275cc
User avatar

Joined: Thu Jun 03, 2004 2:56 pm
Posts: 3981
Location: Brisbane
Friday afternoon and theres a meeting in the Cricket Room (Board Room) so I thought I might look busy and do "research".

Refer here ... http://www.carbibles.com/brake_bible.html

Image

"There is a quiet but major revolution happening in the world of brakes, and its being brought about by a Canadian company called NewTech. Rather than the piecemeal improvements we've seen over the last few years, with slight design changes, and materials improvements, the new system is a radical redesign from the ground up. NewTech have designed a disc brake system called "full contact disc brakes". They looked at traditional pad and rotor design and figured that the pads only contact about 15% of the rotor surface at any one time. With a change of design, NewTech have been able to add 5 more pads to the system so that 75% of the brake rotor is in contact with the pads at any one time.
With traditional pads and rotors, the brake rotor is clamped between the pad. With the NewTech design, the brake rotor itself becomes a floating rotor, similar to those found on motorbikes. It is covered with a 'spider' (the red structure in my renderings below) and the spider has 6 brake pads on the inside of it. The hydraulic system acts on fully circular elastomer composite diaphragm behind the brake disc, mounted in the black structure in the renderings. This had 6 pads on it which push the entire disc out against the 6 pads inside the spider. This provides and even force across the entire disc to push it out, and the disc gets an even contact with all 12 pads.
To ensure the brakes remain cool, the system is covered in cooling fins connected to the outer pads to dissipate heat. The inner pads are fitted with a moulded thermal barrier made of a composite material. Special inserts made of a variety of frictional materials are distributed evenly on the entire surface of the pad. The range of materials is used to ensure performance under diverse conditions.
NewTech believe that the system has considerable advantages over conventional brakes with better cooling, higher strength and reduced noise and vibration.
NewTech have sold truck and bus versions of these brakes into the haulage and public transport industry, but now Renault is considering introducing this system on its cars in conjunction with a new brake-by-wire system."

Image


Top
 Profile  
 
 Post subject:
PostPosted: Fri Jan 20, 2006 4:38 pm 
Offline
Postally Verbose
Postally Verbose
User avatar

Joined: Mon Jan 02, 2006 9:12 am
Posts: 19595
Location: Northern NSW
Something on the lines of what I remember the brakes of a 747 to look like , only theirs has several brake discs (7 I think , it was about 10 years ago I saw them) sandwhiched between several full diameter brake pads . Squeeze the suckers together and you have phenominal braking power .....

_________________
Image


Top
 Profile  
 
 Post subject:
PostPosted: Fri Jan 20, 2006 4:54 pm 
Offline
1098cc
1098cc
User avatar

Joined: Mon Oct 10, 2005 5:48 pm
Posts: 1200
Location: Brisbane, QLD
interesting...but do they look as cool as the single caliper discs?
basically the only advantage i can see is that you could make the brake smaller to make use of the fact you have more effective braking...other than this: isnt the braking power of current braking systems already sufficient? if you look at those DoT graphs of stopping distances...once the brakes are actually engaged the car stops pretty quickly...its the driver and the tires that's the weak link in the chain :P super powerful "LOCK WHEELS NOW" brakes wouldn't improve stopping distances drastically...i wouldnt have thought...sticking wider wheels on the car would probably help more...

_________________
Bling me up Scotty!
"wait till it grows into a plant...then bunny rabbit THE PLANT!"

1966 Morris Mini DeLuxe FOR SALE


Top
 Profile  
 
 Post subject:
PostPosted: Fri Jan 20, 2006 8:42 pm 
Offline
1275cc
1275cc
User avatar

Joined: Sat Nov 19, 2005 1:37 pm
Posts: 2495
Location: Vegus, Brisvegus
What is the unsprung weight of that set-up?

What is the manufacturing cost?

Shed loads!


Top
 Profile  
 
 Post subject:
PostPosted: Fri Jan 20, 2006 9:01 pm 
Offline
Postally Verbose
Postally Verbose
User avatar

Joined: Mon Jan 02, 2006 9:12 am
Posts: 19595
Location: Northern NSW
But just imagine , it'll make it into some supercar , then some manufacturer will put it in their hypo models and then the ricer's will be after it .... Like I said earlier , it's a scaled down version of the concept on jumbo's , but they weigh 250tonnes empty and have to stop in 4 klm from 180kph , bit different for a 1 tonne car from 120kph in a few hundred meters . Better get some really sticky tyres .....

_________________
Image


Top
 Profile  
 
 Post subject:
PostPosted: Fri Jan 20, 2006 9:26 pm 
Offline
1098cc
1098cc
User avatar

Joined: Fri Nov 26, 2004 7:07 pm
Posts: 1647
Location: New York City
sports850 wrote:
But just imagine , it'll make it into some supercar , then some manufacturer will put it in their hypo models and then the ricer's will be after it ....


... and we will still be driving around in 40 yo cars with a 50 yo design :D

_________________
"Life is not like a box of chocolates... it's more like a jar of jalapenos. Whatever you do today, may burn your arse tomorrow."


Top
 Profile  
 
 Post subject: Brakes
PostPosted: Fri Jan 20, 2006 9:28 pm 
Offline
848cc
848cc
User avatar

Joined: Fri Oct 22, 2004 5:31 pm
Posts: 181
Location: Central Tilba NSW
Yeh, a bit of an overkill on a car that weighs less tan 700kg

The aircraft industry have used this type of brake system for 50 years,
works well when you are trying pull up 100 ton in 500 meters

Blue

_________________
Keep shiny side up


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC + 10 hours


Who is online

Users browsing this forum: No registered users and 13 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  

© 2016 Ausmini. All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.