Zero Roll and Pitch Angles Easily

When you mount the RT in a vehicle it is impossible to align it perfectly to the vehicle. There is always some roll, pitch and slip angle errors that have to be corrected in software. Traditionally the roll and pitch were corrected by driving the vehicle to a perfectly level surface (if one is available) and then using the Quick Config to adjust the roll and pitch angles until they become zero.

When the Surface Tilt function was released in the last software update a small, unpublicised feature could be used to correct the roll and pitch mounting angle in the vehicle as well as setting the surface tilt parameters.

When you drive round in a slow circle on a flat track it is possible to work out both the track gradient and the mounting angle of the RT compared to the vehicle. At the end of the “Surface Tilt” software the mounting angles of the RT in the vehicle are computed.

These angles are the changes to roll and pitch that have to be applied so that the RT will measure 0 degrees for the roll angle and 0 degrees for the pitch angle when the vehicle is on a perfectly horizontal surface.

To apply these corrections so that the RT starts using them check the “Correct the Roll and Pitch Mount angles of the RT in the vehicle” checkbox.

This is a very good way of “zeroing” the roll and pitch, even if a perfectly horizontal track is not available.