M
T
4.
Steering control programming and testing
Drive the chair to a
flat open space with good grip
. Sit in the chair and select the
fastest Drive Profile. Set
Grip
121
(5.3.7.15) and
Speed x Turn for Grip
(5.3.7.18) to 100%.
Slowly
a.
Deflect the joystick fully forward. Wait until the chair has reached
its maximum speed.
b.
While keeping the joystick deflected forward, SLOWLY move the
joystick 25° to the side. Check that the chair turns comfortably.
•
If the chair turns too sharply, decrease
Turning @ Full Speed
(5.3.7.19) until the chair
turns comfortably.
Quickly
c.
Return the joystick to full forward, and now
QUICKLY
move the
joystick 25° to the side. Check that there is no unacceptable
steering delay.
•
If there is a steering delay at full speed, either increase
Turning Accel @ Full Speed
or decrease
Turn Damping
.
Note:
Decreasing
Turn Damping
may introduce a jerk at the end of the
turning acceleration / deceleration curve.
See Acceleration programming and testing (previous section).
5.
Chair stability programming and testing
Drive the chair to a
flat open space with good grip
. Sit in the chair and select the
fastest Drive Profile. Set
Grip
and
Speed x Turn for Grip
to 100%.
a.
Deflect the joystick fully forward. Wait until the chair has
reached its maximum speed.
Slowly
b.
SLOWLY move the joystick along the side of the physical
restrictor plate from the forward position fully to the side
position. Check that the chair does not lose control.
•
If the chair loses control (starts spinning uncontrollably
or almost tips over), decrease
Speed x Turn for Grip
(5.3.7.18) until the chair does not lose control over the f
of joystick p
ull range
ositions. It is OK when the chair almost loses control at some
c.
Stop th chair and deflect the joystick fully sideways.
eed.
d.
e.
air does not lose control.
eed x Turn for Grip
ge of
point, as long as it does not really lose control.
e
Wait until the chair has reached its maximum turning sp
SLOWLY move the joystick along the side of the physical
restrictor plate from the side position fully to the
forward position.
Check that the ch
•
If the chair loses control, decrease
Sp
further until the chair does not lose control over the full ran
joystick positions. Again, it is OK when the chair almost loses cont
some point, as long as it does not really lose control.
rol at
Slowly