Study about the usability of VHDL-AMS to describe the behavior of controller and plants in automotive applications (Dr. Ingrid Bausch-Gall, 1994). VHDL-AMS is suitable. MSR defined VHDL-AMS as model exchange format. Further activities have been stopped until first VHDL-AMS simulator would have been available. Adoption of VHDL-AMS as IEEE-Standard 1076.1. MSR Working Group VHDL-AMS has been founded in January 2000.