Control of an autonomous road vehicle (ISO 26262, ‘ASIL D’)
During Q1 2018, we have seen particular demand for assistance in the development of components for use in ‘Advanced Driver Assistance Systems‘ (ADAS) and ‘Autonomous Vehicles‘ (AVs).
One effective way of developing such designs can be to use a ‘TT Wrapper’.
We say more about the use of TT Wrappers in ISO 26262 designs on this page.
[This page was last updated: 2018-03-06]
In this video, we assume that a controller for an ‘autonomous vehicle’ (AV) has been developed.
We further assume: [i] that the AV controller was developed carefully, but the work was not conducted in compliance with ISO 26262 (the relevant international safety standard); and [ii] the AV controller cannot be assigned an ‘ASIL’ rating: it is considered to be ‘QM’ rated.
In order to improve confidence in the safety and reliability of the AV, we will add a ‘TT Wrapper’ to this design.
In combination, the AV controller (‘QM(D)’) and the TT Wrapper (‘ASIL D(D)’) will allow us to achieve ISO 26262 ‘ASIL D’ requirements quickly and cost effectively.
The techniques presented in this video can be applied with a wide range of Advanced Driver Assistance Systems (ADAS) and many other automotive designs.
Learn more about TT software architectures
The Second Edition of ‘The Engineering of Reliable Embedded Systems’ (ERES2), documents an industry-proven approach to the development of software for reliable, real-time embedded systems, based on the use of ‘Time Triggered’ (TT) architectures.
What distinguishes TT approaches is that it is possible to model the expected system behaviour precisely. This means that: [i] during the development process, we can demonstrate that all of the requirements have been met; and [ii] at run time, we can detect problems very quickly.
The end result is that we can have a high level of confidence that a TT system will either: [i] operate precisely as required; or [ii] move into an appropriate state if a problem occurs.
The above characteristics mean that appropriately-implemented TT systems provide a particularly effective means of meeting the requirements of various international safety standards.
In order to illustrate how the TT techniques presented in ERES2 can be employed in practical designs, five detailed case studies are included. These studies describe the development of embedded control and monitoring systems for the following products:
- an industrial alarm sounder unit (IEC 61508, SIL 2);
- a domestic washing machine (IEC 60730, Class B);
- a hospital radiotherapy machine (IEC 62304, Class C);
- a steering-column lock for a passenger car (ISO 26262, ASIL D);
- an aircraft jet engine (DO-178C, Level A).
Complete your cost-effective ISO 26262 design successfully using a SafeTTy Solutions™ package
Our SafeTTy Solutions™ packages are designed to help your development team produce a safety-related embedded system quickly and cost-effectively, in compliance with one or more international safety standards (ISO 26262, IEC 61508, DO-178C, IEC 62304, IEC 60730 …).
SafeTTy Solutions packages are based on TT designs and include carefully-selected combinations of our various products and services.
SafeTTy Solutions packages include an appropriate ReliabiliTTy® Technology Licence.
Learn more about SafeTTy Solutions packages …