ISO 17288-1 specifies an open-loop test method for determining the free control stability of a passenger car as defined in ISO 3833, by measurement of the transient behaviour following steering release, starting from a steady-state cornering status. This title may contain less than 24 pages of technical content.
You can specify the type of files you want, for your device.ISO 17288-1:2002, Passenger cars - Free-steer behaviour - Part 1: Steering-release open-loop test method | ISO/TC 22/SC 9. Just read it with an open mind because none of us really know.