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Futaba 3PK User Manual

Page 24

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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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