Simulink: Output argument 'mot_trq_dem' is not assigned on some execution paths

I am actually running a Matlab code related to Energy management strategy in Hybrid Electric Vehicle. I have a matlab function block in simulink which is showing this as error. I am trying for past 2days to debug this error as which condition of 'mot_trq_dem' I am missing but unable to debug it and because of this I am also gettig error as Errors occurred during parsing of MATLAB function 'XYZ'

Can anybody Kindly help me in this regard ??

I am posting my part of the code below:

% INPUT

%trq_demand : instantaneous torque demand

%spd_demand : instantaneous speed demand

%soc : SOC measurement

%clutch1_pos: Clutch1 position either 1 (on) or 0(off)

%% OUTPUT

%mot_trq_dem: motor torque demand

%eng_trq_dem: engine torque demand

%% CASE 1 : Net Torque demand is negative (trq_demand<0)

if ((trq_demand <=0) && (abs(trq_demand)<abs(mot_trq_min)))

if(clutch1_pos==0)

eng_trq_dem=0;

mot_trq_dem=trq_demand ;

brake_trq=0;

elseif(clutch1_pos==1)

eng_trq_dem=interp1(f_tbrake_n_bpt,f_tbrake_min ,spd_demand,'pchip');

mot_trq_dem=trq_demand-eng_trq_dem ;

brake_trq=0;

end

end

if ((trq_demand <=0)&& (abs(trq_demand)>=abs(mot_trq_min)))

if(clutch1_pos==0)

mot_trq_dem=mot_trq_min ;

eng_trq_dem=0 ;

brake_trq=trq_demand-mot_trq_dem-eng_trq_dem ;

elseif(clutch1_pos==1)

eng_trq_dem=interp1(f_tbrake_n_bpt,f_tbrake_min ,spd_demand,'pchip');

mot_trq_dem=mot_trq_min ;

brake_trq=trq_demand-mot_trq_dem-eng_trq_dem ;

end

end

%% CASE 2 : Net Torque demand is positive (trq_demand>0)

if(trq_demand >0 && clutch1_pos==0)

if(trq_demand >=mot_trq_max)

mot_trq_dem=mot_trq_max;

eng_trq_dem=0;

elseif(trq_demand < mot_trq_max)

mot_trq_dem=trq_demand;

eng_trq_dem=0;

end

end

if(trq_demand >0 && clutch1_pos==1)

.................

''''''''''''''''''''''''related code

''''''''''''''''''''''''''

mot_trq_dem=mot_trq_vec(x) ; %corresponding motor torque demand for min fuel consumption

eng_trq_dem=eng_trq_vec(x) ; %corresponding engine torque demand for min fuel consumption

end

Kindly Help me at the earliest as to which condition I have missed.

Regards

Ajay Kumar

Answer 1

[Abdolkarim Mohammadi]

Maybe adding an empty else to each if helps. For example:

if ...
        ...
else
end