ABS conversion in Evo RS?
http://www.mitsubishi-cars.co.uk/features/ayc.asp
this is interesting because it gives a very simple view of the system and doesn't factor the US lack of AYC. the ACD in general just makes the car more FWD depending on mode most of us never have a good reason to use it. There is still no mention of brakes being used either way... the "lock up" doesn't not mean slowing the car down with the center diff.
Active Centre Differential
The Active Centre Differential, first introduced in the Evo VII, is an electronically controlled hydraulic multi-plate clutch which distributes torque between the front and rear to improve traction under acceleration out of a corner. It works in conjunction with Active Yaw Control which enhances grip and steering response whilst driving through the bend itself. Using sensors, ACD regulates slippage in the 50:50 torque-split diff from free to lock-up according to speed and load. So under hard acceleration the ACD moves towards lock-up to put more torque down on the road for stronger traction, but with rapid steering inputs it operates virtually like an open differential to improve steering feel and response.
A choice of three setting - tarmac, gravel and snow - operated manually, gradually lock up the Active Centre Differential depending on road conditions.
The Active Centre Differential, first introduced in the Evo VII, is an electronically controlled hydraulic multi-plate clutch which distributes torque between the front and rear to improve traction under acceleration out of a corner. It works in conjunction with Active Yaw Control which enhances grip and steering response whilst driving through the bend itself. Using sensors, ACD regulates slippage in the 50:50 torque-split diff from free to lock-up according to speed and load. So under hard acceleration the ACD moves towards lock-up to put more torque down on the road for stronger traction, but with rapid steering inputs it operates virtually like an open differential to improve steering feel and response.
A choice of three setting - tarmac, gravel and snow - operated manually, gradually lock up the Active Centre Differential depending on road conditions.
Last edited by theblue; Jul 13, 2007 at 02:29 PM.
well i'll counter your non-technical marketing website reference with one that supports my position...
http://www.mitsubishi-motors.com/cor...nce/e/awc.html
While we're at it, i'll throw in another link for the purpose of the abs.
http://media.mitsubishicars.com/deta...37442&mime=ASC
"A Sports antilock braking system (ABS) is standard on Lancer Evolution and MR Editions. The ECU uses information from a steering wheel sensor that detects steering inputs as well as lateral G and vehicle speed sensors to apportion pressure to each of the four wheels independently. The result is improved steering response under braking."
and here is the reason you'd want to add abs.
"The system also compensates for changes in surface and vehicle load conditions to ensure predictable and consistent stopping performance at all times."
http://www.mitsubishi-motors.com/cor...nce/e/awc.html
While we're at it, i'll throw in another link for the purpose of the abs.
http://media.mitsubishicars.com/deta...37442&mime=ASC
"A Sports antilock braking system (ABS) is standard on Lancer Evolution and MR Editions. The ECU uses information from a steering wheel sensor that detects steering inputs as well as lateral G and vehicle speed sensors to apportion pressure to each of the four wheels independently. The result is improved steering response under braking."
and here is the reason you'd want to add abs.
"The system also compensates for changes in surface and vehicle load conditions to ensure predictable and consistent stopping performance at all times."
Last edited by griceiv; Jul 13, 2007 at 03:02 PM. Reason: i can't spell...
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Lets take this to two extremes, and open and locked centre diff under heavy braking.
Locked diff:
For the fronts to lock up then the rears will have to also, seeing as both ends of the car are now tied together trying to lock up two ends of a car at the same time takes a lot more effort than just one. This should help prevent wheel lock up and help the car reduce speed better.
Open diff:
The fronts lock up but since the centre is open it will happily let this happen with no resistance from the rear.
And seeing as the ACD is computer controlled I don't see why it can't lock the centre under this condition, you could certainly program it to.
Ok, I will accept that ABS can shorten brake distances in CERTAIN circumstances, but still its MAIN purpose, not only, is to allow you steer the car in the event of wheel lockup.
Does anyone know if swapping an Evo GSR ECU into an Evo RS would give the RS an anti-lock braking capabilities?
If the simple swapping would not do the job, would it be possible to convert a RS to have anti-lock capabilities?
If someone could answer this question, I'd appreciate it.
If the simple swapping would not do the job, would it be possible to convert a RS to have anti-lock capabilities?
If someone could answer this question, I'd appreciate it.
If you are looking into getting a RS for anything but pure performance you need to look else where, go get used GSR. You dont want abs in the RS!
The technical aspect of it is. The RS runs Tech 3 LSD's the computer cannot balance abs with the LSD's. The reason they go with LSD'S rather than ABS you say is because The RS is for the race enthusiast hence LSD's producing a bigger gain than not haven them and opting for abs considering you have a good driver.
Dont get me wrong I believe that the middle peddal wins races, but you dont need abs to work it right.
Get a GSR.
well i'll counter your non-technical marketing website reference with one that supports my position...
http://www.mitsubishi-motors.com/cor...nce/e/awc.html
While we're at it, i'll throw in another link for the purpose of the abs.
http://media.mitsubishicars.com/deta...37442&mime=ASC
"A Sports antilock braking system (ABS) is standard on Lancer Evolution and MR Editions. The ECU uses information from a steering wheel sensor that detects steering inputs as well as lateral G and vehicle speed sensors to apportion pressure to each of the four wheels independently. The result is improved steering response under braking."
and here is the reason you'd want to add abs.
"The system also compensates for changes in surface and vehicle load conditions to ensure predictable and consistent stopping performance at all times."
http://www.mitsubishi-motors.com/cor...nce/e/awc.html
While we're at it, i'll throw in another link for the purpose of the abs.
http://media.mitsubishicars.com/deta...37442&mime=ASC
"A Sports antilock braking system (ABS) is standard on Lancer Evolution and MR Editions. The ECU uses information from a steering wheel sensor that detects steering inputs as well as lateral G and vehicle speed sensors to apportion pressure to each of the four wheels independently. The result is improved steering response under braking."
and here is the reason you'd want to add abs.
"The system also compensates for changes in surface and vehicle load conditions to ensure predictable and consistent stopping performance at all times."
Last edited by r.m.s.; Jul 31, 2007 at 06:13 AM.
The technical aspect of it is. The RS runs Tech 3 LSD's the computer cannot balance abs with the LSD's. The reason they go with LSD'S rather than ABS you say is because The RS is for the race enthusiast hence LSD's producing a bigger gain than not haven them and opting for abs considering you have a good driver.
If you have the luxury of always braking in a straight line on smooth asphalt, aka open track driving, there are perfomance advantages to not having ABS for the skilled (and large tire budgeted) driver. There are stituations where ABS could allow for better performance.
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