Anti-Lock Braking
ABS
Levels
LV2, LV3
Only
DEFINITIONS:
•
ABS
: Simulates a full size car’s antilock braking by pulsing the brake on and
off rapidly.
•
ABP
: Amount of brake return, how far the braking response is decreased
during the pulses.
•
DLY
: Delay; determines how long the braking is applied before ABS begins
to operate.
•
CYC
: Cycle speed adjustment, sets how rapidly the brakes cycle from full
brake to ABP and back.
•
TGP
: Trigger point, sets at what point ABS will be activated. ABS does not
respond if less brake is provided than the trigger point setting.
•
DTY
: Cycle duty ratio, sets the proportion of the total cycle spent with brakes
applied full vs. ABP.
•
STM
: Steering mix setup, controls when the ABS is triggered based upon amount of steering input. Designed to
decrease skidding when vehicle is in a turn, and minimize spin outs.
AVAILABLE FOR:
Braking only.
ADJUSTABILITY:
•
ABP
: 0 (no ABS) to 100% [Servo goes to neutral (no brake) during pulse].
•
DLY
: 0 (ABS responds immediately) to 100% (1.7 seconds of full brake before ABS takes over).
•
CYC
: 1 (fastest) to 30 (slowest). Default=10.
•
TGP
: 10-100.
•
DTY
: -3 (longest full brake application — most likely to skid) to + 3 (shortest full brake – least likely to skid).
•
STM
: OFF, N10-N100, E10-E100.
•
MODE
:Inhibited, Active but switch is off, Active and switch is on.
•
Switch assignment can be changed in
FUNC-SW
(see pp. 34-35).
•
Each ABS variable can be assigned to dials in
FUNC-DIAL
(pp. 34-35) for on-the-course adjustability.
INTERACTIONS:
•
EPA, servo reversing, dual rates, Speed Limiter, acceleration, auto-start, and exponential all interact to create the
overall braking effect.
•
Brake mixing works with ABS as if only one brake servo were used. No second setup for ABS is required.
•
Trigger point, steering mix and assigned switch each control ABS. All three must “say OK” for ABS to respond.
DESIRED END RESULT:
Model stops as rapidly as possible without skidding.
CAUTIONS:
•
Careful analysis of the problem causing skids is required to adjust the proper portion of ABS for best results.
•
Adjustments to EPA, auto-start, expo, speed, brake mixing, vehicle’s suspension, tire compounds, engine
tuning and ATL will all affect the performance of the ABS settings.
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