MATLAB: Do I receive an error regarding initialization commands when I run the model in SimDriveline 1.0.2 (R14SP2)

invalidmotionobjectsensorsimdrivelineSimscape Drivelinesimulink

I have a model made in a previous version of SimDriveline. I have Motion Sensor blocks whose links have been disabled. These blocks cause the following error message:

 Initialization commands cannot be evaluated.  MATLAB error message: Error using ==> get_param
 Invalid Simulink object name: vehicle/Motion Sensor/p.

Best Answer

This behavior occurs because the Motion Sensor block port names were changed from Pos, Vel, and Acc to v, p, and a, respectively, for Release 14, Service Pack 2. The error occurs if you have broken the library link for this block prior to this change.

To correct the behavior, right-click on the Motion Sensor block, select "Restore Link," and choose "Use Library Block."

Related Solutions

MATLAB: Do I receive an error when I copy a subsystem that contains a Joint Spring and Damper block in SimMechanics 2.0 (R13+)

This bug has been fixed in Release 14 Service Pack 2 (R14SP2). For previous releases, please read below for any possible workarounds:

This bug has been fixed for Release 14 (R14). For previous releases, please read below for any possible workarounds:

This problem has been fixed in SimMechanics 2.1 (R13+).

If you are using a previous version, read the following:

As a workaround, you can replace the Joint Spring and Damper block in the copied subsystem with a new Joint Spring and Damper block from the SimMechanics library. This should allow you to simulate your model without any problems.

MATLAB: Do motion measurements depend on the location where the Environment block is connected relative to the Variable Ratio Gear block in SimDriveline 1.0.2 (R14SP2)

This enhancement has been incorporated in Release 14 Service Pack 3 (R14SP3). For previous product releases, read below for any possible workarounds:

We have verified that there is a bug in SimDriveline 1.0.2 (R14SP2) in the way that motion measurements vary depending on which side of the Variable Ratio Gear block the Driveline Environment block is attached.

To work around this issue, download a revised version of the files mentioned below. Here are the required steps:

1. Quit MATLAB

2. Download the file 'drive_engine.mexglx' and place the file in the following directory:

$MATLABtoolbox\physmod\drive\drive\

(where $MATLAB is the MATLAB root directory on your machine, as returned by typing

matlabroot

at the MATLAB command prompt.)

3. Download the file 'drive_codegen_files.tar.gz', unzip it, and place the unzipped files in the following directory:

$MATLAB\toolbox\physmod\drive\c\

(where $MATLAB is the MATLAB root directory on your machine, as returned by typing

matlabroot

at the MATLAB command prompt.)

4. Download the file 'drive_precomplib_glnx86.tar.gz', unzip it, and place the unzipped files in the following directory:

$MATLAB\toolbox\physmod\drive\lib\glnx86\

(where $MATLAB is the MATLAB root directory on your machine, as returned by typing

matlabroot

at the MATLAB command prompt.)

4. Restart MATLAB

5. After restarting MATLAB, issue the following command at the MATLAB prompt:

rehash toolboxcache

Note: This solution is for Linux only

Best Answer

Related Solutions

MATLAB: Do I receive an error when I copy a subsystem that contains a Joint Spring and Damper block in SimMechanics 2.0 (R13+)

MATLAB: Do motion measurements depend on the location where the Environment block is connected relative to the Variable Ratio Gear block in SimDriveline 1.0.2 (R14SP2)

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