Seite - 10 - in Integration of Advanced Driver Assistance Systems on Full-Vehicle Level - Parametrization of an Adaptive Cruise Control System Based on Test Drives

2. Adaptive Cruise Control sensors env.-rec. tion percep- HMI controller ADAS sensors veh. dyn. actuators ADAS vehicle tion naviga- zation stabili- course guidance filtering task transport driver ture infrastruc- traffic ances disturb- environm. Figure 2.1.: Traffic System, adapted from [Don09] The following chapters describe the most important components for Adaptive Cruise Control (ACC) systems in detail. 2.1. Human Machine Interface The HMI is the connection between the driver and the vehicle. For ACC systems, the driver feedsthedesiredcruisingspeedanddesiredtimegap intothesystem,andtheHMI displays the actual speed and distances to the Object to Follow (OTF), if present. Addi- tionally, if the ACC system cannot handle the current situation, warnings are displayed to transfer the longitudinal control back to the driver [Rob04] and [WDS09]. In production ACC vehicles, a common range for the desired driving speed is 20 to 200km/h. The desired time gap can be selected in the range of 1 to 2.2s, which is recommended in International Organization for Standardization (ISO) standard 22179, [Tec09]. It is importantthatthecontrolofanADASdoesnotdistractthedriver, [Rob04]. 10