Longitudinal Driver Support Systems

Adaptive cruise control, a development of conventional cruise control is likely to be introduced into the marketplace before the end of the decade. The acceptance of ACC, with limited brake intervention, is the first step towards interventive collision avoidance systems such as those being developed in the EU funded AC-ASSIST project.The key technology for the development of adaptive cruise control and advanced collision warning is the development of low cost, high integrity, range and relative velocity sensing systems. The requirements for ACC systems and sensors will be considered in this paper. Control and sensor issues are discussed and a comparison between the competing sensor technologies is made.