Five automotive safety and automotive electronics companies have formed Safe-by-Wire, an industry consortium for the development of an industry standard automotive safety bus targeted for use in restraint systems.
The consortium represents a cross-section of automotive suppliers including Autoliv, Delphi Automotive Systems (acting through its Delphi Delco Electronics Systems division), Philips Semiconductors, Special Devices, and TRW, through its Automotive business.
The Safe-by-Wire consortium has agreed to co-operate in the selection of standards for a sensor and deployment bus for the next generation of safety systems.
The consortium is open for anyone to join. Each company is allowed to participate as a contributor to or as a promoter of the specification without paying license fees or royalties. Members agree to work together to define the best overall bus solution to meet the unique requirements of a safety system.
Future safety systems will require numerous safety components and sensors, including adaptive air bags for driver and front passenger seat positions, knee bolster air bags, side impact air bags for all outboard seat positions, seat belt pretensioners, rollover air bags, seat belt buckle switches, side impact and under-hood crush zone sensors, weight sensors, occupant sensors and seat position sensors.
By defining a standardised bus interface for the sensors and restraint components, crash sensor design may be substantially simplified, allowing rapid customisation and reduced development costs.
The proposed bus specification benefits from two years of prior work conducted by consortium members and other companies in the United States Council for Automotive Research (USCAR) initiative to develop a safety bus standard.
The solution proposed by the consortium is a culmination of consortium efforts to distill the best technical approaches reviewed during USCAR safety bus meetings to define a solution that meets all the requirements for an automotive safety bus.
The consortium has approved the initial specification draft and plans to publish the bus specification later this month.