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Curtis 1244 Manual, Rev. E
6 — VEHICLE PERFORMANCE ADJUSTMENT
6
VEHICLE PERFORMANCE ADJUSTMENT
e 1244 controller is a very powerful vehicle control system. Its wide variety of
adjustable parameters allow many aspects of vehicle performance to be optimized.
is section provides explanations of what the major tuning parameters do and
instructions on how to use these parameters to optimize the performance of
your vehicle. Once a vehicle/motor/controller combination has been tuned, the
parameter values can be made standard for that system or vehicle model. Any
changes in the motor, the vehicle drive system, or the controller will require
that the system be tuned again to provide optimum performance.
e tuning procedures should be conducted in the sequence given, because
successive steps build upon the ones before. e tuning procedures instruct
personnel how to adjust various programmable parameters to accomplish specific
performance goals. It is important that the eect of these programmable pa-
rameters be understood in order to take full advantage of the 1244 controller’s
powerful features. Please refer to the descriptions of the applicable parameters
in Section 3 if there is any question about what any of them do.
MAJOR TUNING
Four major performance characteristics are usually tuned on a new vehicle:
➀ Tuning the Active rottle Range
➁ Tuning the Controller to the Motor
➂ Setting the Unloaded Vehicle Top Speed
➃ Equalization of Loaded/Unloaded Vehicle Speed.
ese four characteristics should be tuned in the order listed.
➀
Tuning the Active Throttle Range
Before attempting to optimize any specific vehicle performance characteristics,
it is important to ensure that the controller output is operating over its full
range. To do this, the throttle should be tuned using the programmer. e
procedures that follow will establish rottle Deadband and rottle Max
parameter values that correspond to the absolute full range of your particular
throttle mechanism. It is advisable to provide some buer around the absolute
full range of the throttle mechanism to allow for throttle resistance variations
over time and temperature as well as variations in the tolerance of potentiometer
values between individual throttle mechanisms.
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