S-AWC and ACD settings
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From: Rochester, NY
S-AWC and ACD settings
I've read about how ACD works as well as how AYC works on the new Evo X, but I've noticed that for slalom tests in the magazines that they claim the car can oversteer too much when rapidly alternating directions so quickly making it a handfull. Would changing the ACD setting to Gravel or Snow have any effect by keeping it in the locked state for a longer time? How about getting increased base oversteer from a stiffer anti-roll bar, will the car give less oversteer assist since the car is oversteering from the stiffer rear?
I spotted this thread in the past:
https://www.evolutionm.net/forums/sh...&highlight=acd
and
I remember on my Evo 8 that my ACD pump failed and for normal driving it wasn't that much of a loss... but wow I almost wiped out when I went into a sharp low speed turn near my house where I had it near the edge and the car understeared more than normal so I let off a little and turned in more, then all of a sudden got traction and it gave me spin inducing oversteer because my wheel was turned too far. I wonder if we have AYC or SAYC in our S-AWC setup for a larger power distibution spread.
I spotted this thread in the past:
https://www.evolutionm.net/forums/sh...&highlight=acd
ACD:
Tarmac: 50/50
Snow: 50/50
Gravel: 50/50
The center diff has a fixed ratio gearing, which is 50/50.
The ACD mode varies the diff's lock state duration and locking power only. In the entrance of a turn, the diff change from open to lock to provide lateral stability. In the middle of the turn, the diff opens to induce turnning. In the exit of the turn, ACD locks the diff again to provide maxium exit stability.
Tarmac: the ACD stay lock for short duration
Gravel: the ACD stay lock for medium duration
Snow: the ACD stay lock for long duration, lowest locking power.
Tarmac: 50/50
Snow: 50/50
Gravel: 50/50
The center diff has a fixed ratio gearing, which is 50/50.
The ACD mode varies the diff's lock state duration and locking power only. In the entrance of a turn, the diff change from open to lock to provide lateral stability. In the middle of the turn, the diff opens to induce turnning. In the exit of the turn, ACD locks the diff again to provide maxium exit stability.
Tarmac: the ACD stay lock for short duration
Gravel: the ACD stay lock for medium duration
Snow: the ACD stay lock for long duration, lowest locking power.
ACD/AYC are controled by the ACD ECU based on the ACD mode switch position, longtitude g-sensor, lateral g-sensor, brake light switch position, hand brake light switch, steering position sensor, and wheel speed sonsors.
ACD can't chage gearing ratio, it only change the open/lock state.
AYC can distribute power between each rear wheel up to 40:60.
SAYC is even better at 30:70.
ACD can't chage gearing ratio, it only change the open/lock state.
AYC can distribute power between each rear wheel up to 40:60.
SAYC is even better at 30:70.
