Fine Tuning - Curtis 1244 User Manual

6 — VEHICLE PERFORMANCE ADJUSTMENT
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FINE TUNING

Four additional vehicle performance characteristics can be adjusted:
➄ Response to Increased Throttle
➅ Response to Reduced Throttle
➆
Smoothness of Direction Transitions
➇
Ramp Climbing
➈
Ramp Restraint.
These characteristics are related to the "feel" of the vehicle and will be different
for various applications. Once the fine tuning has been accomplished, it should
not have to be repeated on every vehicle.
Response to Increased Throttle
➄
The vehicle's response to quick or slow throttle increases can be modified using the
Accel Rate, Current Ratio, Quick Start, and Throttle 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.
step 1. Set Quick Start = 0 and Throttle Map as desired.
step 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.
step 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.
step 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 Throttle 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.
The Accel Rate, Max Speed, and Drive Current Limit parameters
can be tuned exclusively for this precision-maneuvering mode to
obtain comfortable vehicle response.
Curtis 1244 Manual,
Rev. E