Anders Sandberg
Industrial Ph.D. Student
E-mail: asandber@md.kth.se
Visiting address: Brinellvägen 85, 10044 Stockholm
Phone: 031-7204428
Email: anders.sandberg@mecel.se
Visiting address: Mölndalsvägen 36-38, 41263 Göteborg
Research
Licentiate titel - On Requirements Engineering for Distributed Embedded Systems: with application for vehicular active safety systems.
Back ground:
Requirements for active safety systems that shall sense the surrounding and feed this data to a user function are problematic to define. This because the sensing using radar or camera is indirect and it is difficult to predict a uniform value for each generic traffic situation. Furthermore the behaviour of the user functions themselves are often difficult to quantify as they strive to replace the driver in the control loop, and make the driver a fall back mechanism and supervisor of the system. As the driver will create his own model of expected behaviour and this is not necessarilty the same for every driver, quantifying the 'expected system reaction' from a user point of view to function requirements is difficult. The driver will feel the control rather and this feeling will create an impression of quality. Setting physical limits to the control is possible but not necessarily a pracitical solution as different parties will have different views on what is right. This separation of feeling and physical limits of motion can be understood if the top level requirements owner does not understand physical limits but rather wants a 'smooth reaction from the brakes' when the autonomous systems reacts. Other aspects that fall into the same category is design of controls (good looking, intutitive), sound of actuators (not noticeable).
Objective:
Method for requirements engineering for sensor based active safety systems.
Methodlogy for management of requirement updates.
Analysis of target selection as a function that gets requirements from the user function.