Precision Turbo and Engine BigStuff3 GEN3 Powertrain Controller Transmission Control Users Manual - Manual (Page 15)

Bigstuff3 GEN3 Transmission Control Manual
When the key board
SHIFT key is
depressed, “Edit
Mode” is displayed
in the gear position
box.
The blue
background
designates that the
table is in “Edit
Mode”
Left & Right Arrow Keys - When the “TCC” table is in “Edit Mode” (the table background will be
blue), the left and right arrow keys can be used to scroll across the red and green lines in each window
(gear). Moving from window to window (gear-to-gear) within the “TCC” table can also be achieved
using the left and right arrow keys. Depressing the right arrow key repeatedly will move the cursor all
the way to the right in each window. When the cursor reaches the last TCC point (to the right) in each
window, it will jump up to the next (gear) window. Using the left arrow key will move the cursor
(left) down from one window to the next until it reaches the first point in the third gear “TCC”
window.
Up & Down Arrow Keys -The up and down arrows keys can be used to change the MPH value of any
point, on any line, in the table. Use the left and right arrow keys to get to the desired “TCC” point in
any window (gear). As the cursor moves across the lock (green line) and un-lock (red line) lines, the
MPH values for each shift point are displayed. Once the desired shift point is reached, use the up and
down arrow keys to increase or decrease the MPH value for that “TCC” point. The value (MPH) can
be increased or decreased in 1 MPH increments.
To get out of “Edit Mode” hit the “SHIFT” key again.
Line Pressure (LP) Table
The Line Pressure (LP) table is used to configure transmission line pressure (up-shift firmness) for
each gear as a function of percent (%) throttle opening. There are only
green lines in the LP table
since line pressure (shift firmness) is the only variable being controlled.
There is an inverse relationship between the force motor duty cycle % and line pressure. In other
words, the lower the percent (%) duty cycle, the higher the line pressure and the higher the percent (%)
duty cycle value the lower the line pressure, and the less firm the gear shift will be.
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