(best for non-linear):
writecfile(table, 'calibration_table.c'); | Object/Function | Purpose | |----------------|---------| | xydesign | Generate DOE points | | mbcdata | Manage experimental data | | mbcgp , mbcquadratic | Build models | | calset | Multi-objective optimization | | mbc2dlookup | Export to Simulink | | crossvalidate | Validate model accuracy | 4. Practical Example: Engine Calibration Goal: Calibrate spark timing for max torque while limiting knock. mcc toolbox
gp = mbcgp(train, 'Response', 'Torque', 'Predictors', 'Speed','Load'); gp = fit(gp); plot(gp); % Check fit : 1=knock) knock_model = mbcgp(data
% Example: Create a space-filling design factors = 'Speed', 'Load', 'Timing'; range = [800 6000; % RPM 20 120; % Load (%) -10 30]; % Timing (deg) des = xydesign(factors, range, 'NumPoints', 50); scatter(des); % Visualize Load measured data from engine tests. knock_model = fit(knock_model)
% 3. Build knock model (binary: 0=no knock, 1=knock) knock_model = mbcgp(data, 'Knock', 'Speed','Load','Timing', 'Distribution','binomial'); knock_model = fit(knock_model);
% Create a 2D lookup table lut = mbc2dlookup('filename.slx', table); writeblock(lut); Or generate C-array:
% 4. Optimize timing cal = calset(torque_model, 'Goal','maximize', 'Response','Torque'); cal = addconstraint(cal, 'pred(knock_model) <= 0.1'); % knock probability <10% cal = setfactorrange(cal, 'Timing', -10, 30); optimal = optimize(cal);