%0 Journal Article %A Kyung-Jung Lee and Hyun-Sik Ahn %D 2014 %J International Journal of Computer and Systems Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 88, 2014 %T On the Design of Electronic Control Unitsfor the Safety-Critical Vehicle Applications %U https://publications.waset.org/pdf/9997981 %V 88 %X This paper suggests a design methodology for the hardware and software of the electronic control unit (ECU) of safety-critical vehicle applications such as braking and steering. The architecture of the hardware is a high integrity system such thatit incorporates a high performance 32-bit CPU and a separate peripheral controlprocessor (PCP) together with an external watchdog CPU. Communication between the main CPU and the PCP is executed via a common area of RAM and events on either processor which are invoked by interrupts. Safety-related software is also implemented to provide a reliable, self-testing computing environment for safety critical and high integrity applications. The validity of the design approach is shown by using the hardware-in-the-loop simulation (HILS)for electric power steering(EPS) systemswhich consists of the EPS mechanism, the designed ECU, and monitoring tools. %P 678 - 681