62
Curtis 1244 Manual, Rev. E
FINE TUNING
Four additional vehicle performance characteristics can be adjusted:
➄ Response to Increased rottle
➅ Response to Reduced rottle
➆ Smoothness of Direction Transitions
➇ Ramp Climbing
➈ Ramp Restraint.
ese characteristics are related to the “feel” of the vehicle and will be dierent
for various applications. Once the fine tuning has been accomplished, it should
not have to be repeated on every vehicle.
➄ Response to Increased Throttle
e vehicle’s response to quick or slow throttle increases can be modified using the
Accel Rate, Current Ratio, Quick Start, and rottle Map parameters. Optimal
vehicle response is tuned by adjusting these parameters and then accelerating
the vehicle from a dead stop under various throttle transition conditions.
1. Set Quick Start = 0 and rottle Map as desired.
2. Drive the vehicle and adjust the Accel Rate for the best overall
acceleration response. If the vehicle starts too slowly under all
driving conditions, the Accel Rate should be reduced.
3. Increasing vehicle acceleration. If acceleration feels good for slow
or moderate throttle transitions but the vehicle initially starts too
slowly, set the Current Ratio to 2 or higher. If acceleration is not
satisfactory when the throttle is transitioned quickly from zero
to full speed, increase the Quick Start parameter value to obtain
the desired fast throttle response.
4. Achieving better control at low speeds. If the vehicle responds
well for fast, full range throttle transitions but is too jumpy
during low speed maneuvering, reduce the Quick Start, reduce
the rottle Map, and/or set the Current Ratio = 1. If these
adjustments are insufficient or unacceptable, you may want to
define a separate operational mode for precision maneuvering.
e Accel Rate, Max Speed, and Drive Current Limit parameters
can be tuned exclusively for this precision-maneuvering mode to
obtain comfortable vehicle response.
6 — VEHICLE PERFORMANCE ADJUSTMENT
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