Zapi DUALACE2 NEW GENERATION - 9.9 Throttle Profile

Page 112/169 AFNZPxxx – DUALACE2 NEW GENERATION – User Manual
The profile is valid both for positive and negative angle values.
Example:
 Three-wheel CB truck
 Permitted steering-wheel angles = -90° ÷ 90°
 CURVE SPEED 1 = 50%
 CURVE SPEED 2 = 30%
 STEER DEAD ANGLE = 40°
 STEER ANGLE 1 = 50°
 STEER ANGLE 2 = 80°
This set of parameters define the speed profile depicted in the graph below.
Steering curve.
9.9 Throttle profile
The controller performs the speed control along a non-linear function of the
accelerator position, so to provide a better resolution of the speed set-point at low
speed. The relationship between the throttle voltage and the speed set-point is
defined as a polygonal chain, as per the following table of points.
Throttle signal
[% of MAX VACC]
Speed set-point
[% of MAXIMUM SPEED]
0
FREQUENCY CREEP
THROTTLE 0 ZONE
FREQUENCY CREEP
THROTTLE X1 MAP
THROTTLE Y1 MAP
THROTTLE X2 MAP
THROTTLE Y2 MAP
THROTTLE X3 MAP
THROTTLE Y3 MAP
MAX VACC
MAX SPEED
The speed remains at the FREQUENCY CREEP value as long as the voltage
from the accelerator potentiometer is below THROTTLE 0 ZONE. Basically this