How can we change coordinate system from SAE to ISO in Vehicle Dynamics Blockset ?

The Vehicle Dynamics Blockset simulation environment uses right-handed (RH) Cartesian coordinate systems defined in the SAE J670. How can we change it to ISO coordinate system (left-handed) ?

Answer 1

[Mike Sasena]

Hi Berkay,

Can you clarify what portion of the vehicle model you want to use the ISO coordinate system? In case it helps, the documentation describes how different subsystems such as the chassis and tire have different conventions and therefore use different coordinate systems.

cheers,

Mike

Answer 2

[Aiswarya]

Hi,

I understand that you are working with the Vehicle Dynamics Blockset and you wish to change the Cartesian coordinate system from right handed to ISO coordinate system (left-handed).

The following documentation may help you understand the coordinate system options available in Vehicle Dynamic Blockset:

Coordinate Systems in Vehicle Dynamics Blockset - MATLAB & Simulink (mathworks.com)

Currently only the SAE Z-down (i.e. right-handed (RH) Cartesian coordinate system) is supported. This can be converted to ISO using standard transformation matrix operations.

For this transformation, you can try swapping the y and z coordinate values to get the new coordinates.

I hope this helps.

Regards,

Aiswarya