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New Names for TRACTION CONTROLS?

Discussion in 'Technical Chat' started by David K, May 15, 2010.

  1. May 15, 2010 at 11:04 AM
    #1
    David K

    David K [OP] Well-Known Member

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    Just thinking outloud here folks... trying to make explaining the (up to) 9 drive modes and differences between the various Tacomas easier.

    TRAC (in 2WD) is not the same control as TRAC in 4WD. There is engine output regulation while in 2WD when TRAC activates.

    AUTO LSD only is for use in 2WD. It works stronger than TRAC because there is no engine output regulation.

    TRAC (in 4WD) has no engine output regulation, so is more powerful than TRAC in 2WD

    A-TRAC is in a class of its own, it doesn't allow torque to go wasted if one tire per axle looses traction. It matches (locks) wheel rotation between the loose and traction tires. If both tires have equal traction, they both get torque, like a locker does.

    The Off Road TRD 4x4s have a hydraulic break booster (for the A-TRAC)and that makes their 4WD High TRAC control stronger than non A-TRAC equiped Tacomas (that have a vacuum break booster).

    So, there are many different types of Traction Control, but the same name is used for many of them...

    TRAC-1) 2WD VBB (Vacuum Break Booster)
    TRAC-2) 2WD HBB (Hydraulic Break Booster)
    AUTO LSD VBB
    AUTO LSD HBB
    TRAC-3) 4WD High VBB
    TRAC-4) 4WD High HBB
    A-TRAC (Active Traction Control) 4WD Low

    So,I am thinking that TRAC is in need of some modifying since there are 2 to 4 different kinds of TRAC.

    AUTO LSD (ALSD) is what? Creates the effect of a limited slip differential with the brake system. I mean TRAC is also LSD and it is 'automatic'! Why that name (ALSD) for the 2WD mode without engine regulation, but don't call the 4WD High 'ALSD' when it is doing the same thing on all 4 tires?

    Some ideas? I am not crazy about them all, but with all of our minds, we should comeup with something classy!

    2-TRAC (TRAC in 2WD)
    3-TRAC (AUTO LSD) ('3' is better than 2, not as good as 4)
    4-TRAC (TRAC in 4WD), but it works like ALSD instead of like TRAC.

    2VB-TRAC (vacuum booster)
    2HB-TRAC (hydraulic booster)
    3VB-TRAC
    3HB-TRAC
    4VB-TRAC
    4HB-TRAC

    TRAC LITE (2WD)
    TRAC EXTRA (2WD Auto LSD)
    TRAC ULTRA (4WD High)
    TRAC AWESOME (A-TRAC)... lol, I am just seeing if you are awake!

    TRAC LITE VB
    TRAC LITE HB
    TRAC EXTRA VB
    TRAC EXTRA HB
    TRAC ULTRA VB
    TRAC ULTRA HB

    A-TRAC (A-TRAC)
    B-TRAC (4WD TRAC)
    C-TRAC (AUTO LSD)
    D-TRAC (2WD TRAC)

    ======================================================

    How about some other ideas? Once there is some good sounding names, we can do a poll and vote, for fun.
     
  2. May 15, 2010 at 6:22 PM
    #2
    David K

    David K [OP] Well-Known Member

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    Any thoughts...?

    TRAC LITE (2WD).... Mode 1 (from below)
    TRAC EXTRA (2WD Auto LSD).... Mode 2
    TRAC ULTRA (4WD High).... Mode 4
    TRAC AWESOME (A-TRAC).... Mode 7

    Open Differentials (no TRACTION CONTROL) is Mode 3, 5 and 6.

    Rear Locker on in Mode 8 and 9.
     
  3. May 15, 2010 at 7:19 PM
    #3
    Isthatahemi

    Isthatahemi Well-Known Member

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    BFG AT's, Weathertechs, Hoppy's brake controller.
    I think you should change your screen name to TractionControlGuru! lol.

    My preference is this
    TRAC = 2WD torque limited, brake assisted, traction control
    ALSD = Auto Limited Slip Differential, no torque limiting, functional similar to mech LSD. This is also in 4wd, now called TRAC, It should just be ALSD, regardless of 2WD or 4WD. It is the same.
    ATRAC = P-LOCK (pseudo-locker)
     
  4. May 16, 2010 at 9:49 AM
    #4
    David K

    David K [OP] Well-Known Member

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    Thanks Hemi! No guru title for me... I am already called a Baja guru by some over on the Baja message board! I just get interested in the technology of things and believe if they are understood better, they would be appreciated (and used) more...

    The traction control achieved through brakes is remarkabley simple, yet gives traction of complicated clutch and gear mechanisms.

    Thanks for your suggestions!
     
  5. Jul 1, 2010 at 6:03 PM
    #5
    David K

    David K [OP] Well-Known Member

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    I had an idea... with Hemi's ALSD idea in mind...

    4WD TRAC (being the same mechanical operation as AUTO LSD in 2WD and not like TRAC in H2) is best called AUTO LSD-4 (since it is automatic limited slip).

    A-TRAC is really AUTOMATIC LOCKING DIFFERENTIALS (AUTO LD or ALD or A-LOCK) in the same manner that TRAC and AUTO LSD works 'automatically'.
     
  6. Jul 15, 2010 at 9:45 PM
    #6
    David K

    David K [OP] Well-Known Member

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    Differential Breather Mod Light Bar: 2 Hella 4000 HID, 1 Cibie Halogen. Bilstein 5100s Ride Rite Air Bags
    4WD ACTIVE TRACTION CONTROL (A-TRAC) = Automatic Locking Differentials

    4WD TRACTION CONTROL (TRAC) = Automatic Limited Slip Differentials

    (Nice to have both, no matter what they are called! Viva TACOMA 4WD TRD Off Road)
     
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