Simulink AWD Model Error

I have been updating the sdl_4wd_testbed to simulate an AWD system similar to what is on the Subaru WRX STi. I got this model to work with the magic formula tire, but I need to use the friction parameterized tire model and cannot get it to work. I am getting this error:

Initial conditions solve failed to converge. ...Nonlinear solver to advance time one step failed to converge due to Linear Algebra error. Failed to solve using iteration matrix.

......Equations (including switched-linear and nonlinear equations) of one or more components may be dependent or inconsistent. This can cause problems in transient initialization. Here is the set of components involved: 'subaru_symmetrical_awd/Rear Left Tire (Friction Parameterized)' Equation location is: 'C:/Program Files/MATLAB/R2013a/toolbox/physmod/simscape/library/m/+foundation/+physical_signal/+functions/product.ssc' (line 21)

'subaru_symmetrical_awd/Rear Right Tire (Friction Parameterized)' Equation location is: 'C:/Program Files/MATLAB/R2013a/toolbox/physmod/simscape/library/m/+foundation/+physical_signal/+functions/product.ssc' (line 21)

'subaru_symmetrical_awd/Rear differential/Differential/Differential' Equation locations are: 'C:/Program Files/MATLAB/R2013a/toolbox/physmod/sdl/sdl/+sdl/+gears/+planetary_subcomponents/sun_planet_bevel_model1.sscp' (no line number info) 'C:/Program Files/MATLAB/R2013a/toolbox/physmod/sdl/sdl/+sdl/+gears/+planetary_subcomponents/sun_planet_bevel_model1.sscp' (no line number info)

'subaru_symmetrical_awd/T_RL/Ideal Rotational Motion Sensor' Equation location is: 'C:/Program Files/MATLAB/R2013a/toolbox/physmod/simscape/library/m/+foundation/+mechanical/+sensors/angular_velocity.ssc' (line 42)

'subaru_symmetrical_awd/T_RR/Ideal Rotational Motion Sensor' Equation location is: 'C:/Program Files/MATLAB/R2013a/toolbox/physmod/simscape/library/m/+foundation/+mechanical/+sensors/angular_velocity.ssc' (line 42)

It looks like the error is between the rear open differential and the rear tires. I thought that this could maybe some sort of issue with the conversion from the PS to S signal conversion, but it would not let me connect the blocks when I deleted the PS->S block. I tried putting a unit delay between the differential and tires but had the same problem. I was wondering if anyone could give me some sort of insight into what could be causing this error. I have attached the model I have currently.

Answer 1

[Klk2014]

anyone have any insight into how to go about getting rid of this error?