ECU Optimization Support Tool ORANGE Navigator & Optimizer
ORANGE Related Q&A Collection
general
- What are the features of ORANGE?
- How many variables can be accommodated?
- ORANGE is expensive, so I want to purchase only some features.
experimental plan
- Is there a guideline for what percentage of virtual illuminance values corresponds to what level of model evaluation (R2 value)?
- Are there any recommended methods for experimental design?
- Can a global DOE and a global model be created?
- When higher-order terms are used in D-optimal design, no matter how many design points are increased, the value of D-efficiency (in %) decreases. Why is that?
planned operation
- How many variables can be measured when integrating with the FAMS system?
- How much can the measurement time be reduced by using an experimental plan?
- How much can the measurement time be reduced by using sequential experimental designs?
collected data
- If there is correlation among design variables in a scatter matrix, multicollinearity may be a concern. However, what can be inferred if there is correlation between design variables and response variables?
- Can the applicable variables (design variables) be changed for each group (based on rotation speed and torque)?
model
- Are there any recommended modeling methods?
- The R-squared value can sometimes be negative, but since it is the square of the correlation coefficient, shouldn't it be impossible for it to be negative?
optimization
- Are there any recommended optimization methods?
- Is multi-objective optimization possible without constraints?