Vehicle Performance Adjustment - Curtis 1212 Manual

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Curtis 1212 Manual

VEHICLE PERFORMANCE ADJUSTMENT

The 1212 controller's adjustable parameters allow many aspects of vehicle
performance to be optimized. 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.
The tuning procedures should be conducted in the sequence given,
because successive steps build upon the ones before. It is important that the
effect of these programmable parameters be understood in order to take full
advantage of the 1212 controller's features. Please refer to the descriptions of
the applicable parameters in Section 3 if there is any question about what any
of them do.
Instructions are provided for the following four tuning steps.
5
Setting the maximum speeds
6 Setting the acceleration and deceleration rates
7 Adjusting load compensation
8 Fine-tuning the vehicle's response smoothness.
Setting the maximum speeds
5
The four maximum speeds with the speed limit pot in its maximum speed
position are set by the four Max Speed parameters:
M1/M2 Max Speed and M1/M2 Rev Max Speed.
The four maximum speeds with the speed limit pot in its minimum speed
position are set by the four Min Speed parameters:
M1/M2 Min Speed and M1/M2 Rev Min Speed.
Each of the maximum speeds is programmed as a percentage of the maximum
possible speed. Set each of the eight maximum speed parameters to give the
desired performance.
Setting the acceleration and deceleration rates
6
The acceleration and deceleration functions have been designed to provide
smooth throttle response when maneuvering at low speeds and snappy throttle
response when traveling at high speeds. This is accomplished by defining ac-
celeration/deceleration rates at each end of the speed limit pot's range. The
rates are scaled linearly between these two endpoints. Four pairs of parameters
define the endpoints of the acceleration/deceleration curves:
Forward acceleration:
Forward deceleration: Decel
Reverse acceleration:
Reverse deceleration:
6 — VEHICLE PERFORMANCE ADJUSTMENT
Min Speed — Accel Max Speed
Accel
Low Speed — Decel High Speed
Min Speed — Rev Accel Max Speed
Rev Accel
Low Speed — Rev Decel High Speed.
Rev Decel
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