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The automatic brake system (A.B.S.) pulses the brakes to avoid
blocking the wheels and losing control of the vehicle.
A first menu selects which one of the 6 parameters to modify.
• Brake return: determines how much the brakes will be
released at each pulse. 100% completely releases the brakes
and the servo returns to its neutral position at each pulse. 0%
disables the function.
• Delay: if not 0%, inserts a delay between the ABS triggering
and the activation of the brakes pulses. 100% inserts a delay of
around 2 seconds.
• Cycle length: determines the length of a brakerelease cycle.
20% is the shortest cycle length (around 100ms) and 100% is the
longest (around 500ms).
• Trigger point: the ABS function is performed only if the brakes
are applied over this threshold. 100% activates the ABS only at
full brake.
• Duty cycle: set the proportion of the time the brakes are
applied and the time the brakes are released. The lowest value
(-4) releases the brakes only 10% of the time and the highest
value (+4) releases the brakes 90% 01 the time.
• Steering mix: a positive value (N) will activate the ABS only
if the steering wheel is within the specified range around the
neutral position. A negative value (E) will activate the ABS only
is the steering wheel is outside of that same range around the
neutral position.
Once a parameter is selected, a second dialog box allows to modify
it.
• The dark gray curve represents the ABS function at full brakes.
• The red curve represents the actual ABS function .
• The white Iine represents the trigger point beyond which the
ABS function is performed.
• The bar graph at the bottom displays the channel 2 (throttle) in
real time.
• In this example, the duty cycle parameter is selected and is set
to +2 mostly releasing the brakes all the time. The brakes are
applied at 43%, above the trigger point set to 30%.
• The activation of the ABS function can be assigned to a push
button.
• The ABS brake return can be assigned to a trim switch.
• The ABS delay can be assigned to a trim switch.
• The ABS cycle length can be assigned to a trim switch.
• The ABS trigger point can be assigned to a trim switch.
• The ABS brake return can be assigned to a trim switch.
• The ABS duty cycle can be assigned to a trim switch.
A.B.S.
