PREVOST H3-45 VIP Owner's Manual page 161

Learn Wheel ID
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This menu allows learning new wheel sensors ID.
The user can learn only one wheel, several wheels or
all wheels of the
automatically jumps to the next wheel such that a
user can initiate all wheels without having to come
back to the display between each wheel.
The display uses a pressure change as the criteria to
recognize which wheel sensor the operator wants to
get assigned to a given location. The amount of
pressure change required is established at 2 PSI.
A pressure change of about 3 PSI is needed to wake
up a sensor and then an extra amount of pressure
change of 2 PSI is needed to trigger the display. The
operator has to create a pressure change by at least
6 PSI and then wait for the display to recognize the
pressure change. The wait time corresponds to the
sensor sampling rate.
When entering the menu, the axle 1, wheel 1 is
selected by default as a starting point for the
learning. The user can select another axle with +/- ,
move the cursor to the wheel number with the right
arrow and select another wheel with the +/- or move
the cursor down to the start learning button.
After the start learning button is selected, the display
stores the first transmission it gets from each sensor
ID into the "initial pressure" for that sensor ID. Then it
compares each subsequent pressure received for
that sensor ID with the initial one and when the
comparison shows a delta pressure exceeding the
defined level required, this sensor ID is assigned to
the selected tire location.
Once a wheel ID has been assigned, the display
increments the number of wheels done and it moves
to the next axle/wheel in the sequence, waiting for
another sensor to come up with a pressure change.
Within one learning session, the display remembers
which sensor has been assigned and it will not
assign it twice.
The sequence increments the display of the next
wheel on the same axle, counting wheels from left to
vehicle. The sequence
PA-1638 Owner's Manual X3-45 VIP
Safety Features and Equipment 7-5
right, and then moves to the next axle, counting
axles from front to rear.
It activates the next wheel parameter each time a
wheel is done. This setting is integrated with the
vehicle electronic, activating an audible signal on the
vehicle, thus providing feedback to the user that he
can move on to the next wheel.
The spare tire can be done by selecting the
axle/wheel "spare" which is internally encoded to
15:1.