Samenvatting
Antilock braking systems (ABS) for heavy vehicles have to be evaluated both by the manufacturer and the type approval authorities. International braking regulations developed by the United Nations organisation ECE in close co-operation with EEC, USA and Japan include such evaluation test procedures. They are continuously being improved but still more needs to be done. In this paper some deficiences will be discussed and possible methods for improvement proposed. As tools in this process methods and equipment developed at the Swedish Road and Transport Institute (VTI) will be described briefly.