The plan is to generate the required signals to allow the electric power steering pump to reduce its load as vehicle speed increases. So you get maximum assistance at low speed and zero assistance once you get moving at a decent speed.
There is a thread on the
DIY Electric Car forum that describes some members efforts at getting these working.
There is also a YouTube video of one being bench tested which shows they can be very quiet. I have seen one other video in which the pump sound was deafening. So hopefully i can work out which one is the quiet one.