Technical Reports

2005

Pont, M.J., Kurian, S., Maaita, A. and Ong, R. (2005) "Restructuring a pattern language for reliable embedded systems".

ESL Technical Report 2005-01 (a copy is available here).

We have previously described a "language" consisting of more than seventy patterns, which will be referred to here as the "PTTES Collection" (see Pont, 2001). This language is intended to support the development of reliable embedded systems: the particular focus of the collection is on systems with a time triggered, co-operatively scheduled (TTCS) system architecture.

This report briefly describes the approach that we have taken in order to re-factor and refine our original pattern collection. It then goes on to describe some of the new and revised patterns that have resulted from this process.

Short, M., Pont, M.J. and Fang, J. (2005) "Control Technologies For Automotive Drive-By-Wire Applications".

ESL Technical Report ESL04/04 (Working Title, available shortly).

Short, M., Pont, M.J. and Fang, J. (2005) "Drive-By-Wire ACC System: Technical Specification".

ESL Technical Report ESL04/05 (Working Title, available shortly).

Short, M., Pont, M.J. and Fang, J.(2005) "10-Node Distributed ACC System: Co-Operative Implementation".

ESL Technical Report ESL04/06 (Working Title, available shortly).

2004

Jain, A. and Pont, M.J. (2004) "Speech playback in resource-constrained embedded systems".

ESL visit report 2004-VR01.(a copy is available here).

Short, M, Pont, M.J. and Huang, Q. (2004) "Safety and Reliability of Distributed Embedded Systems: Simulation of Vehicle Longitudinal Dynamics".

ESL Technical Report ESL04/01 (a copy is available here).

Abstract

This document describes the development of a model of the longitudinal dynamics of a passenger car. The model described here provides a suitably detailed description of a 'host vehicle', which is controlled by a distributed embedded system in a hardware-in-the-loop real-time test facility.

Short, M., Pont, M.J. and Huang, Q. (2004) "Safety and Reliability of Distributed Embedded Systems: Simulation of Motorway Traffic Flows".

ESL Technical Report ESL04/02 (a copy is available here).

Abstract

This report describes the development of a computer simulation of traffic flow on a typical section of motorway in the UK. First a brief description of the motorway network itself is given, along with a discussion of UK driving conventions. Following this, the principle of microscopic simulation and the representation of road users are discussed. Drive models for both car following and lane changing are then developed. The microscopic parameters in the driver models are then optimised to fir the simulation results with existing empirical data.

Short, M., Pont, M.J. and Huang, Q. (2004) "Safety and Reliability of Distributed Embedded Systems: Development of a Hardware-in-the-Loop Test Facility for Automotive ACC Implementations".

ESL Technical Report ESL04/03 (a copy is available here).

Abstract

This report describes the development of a PC_based, Hardware-IN-THe_Loop (HIL) test facility for the evaluation of embedded automotive control system design. The report begins by explaining the principles of Adaptive Cruise Control (ACC) and exploring hoe the work reported in previous technical reports in this series is integrated into the overall simulation. Following this , the hardware interface to the embedded system is described, along with the techniques that were used to generate a suitable timing resource for implementation in a DOS-based environment. The next section details how the various system sensor and actuators may be simulated in a realistic manner. The report then concludes with a description of a suitable software architecture, bringing together each of the required elements. The simulation is coded entirely in C, with reference to certain functions on the text.

Author: S A Key, last updated 16/11/2004. Best viewed on 1024 x 768.
This document has been approved by the Head of Department.