Reliable Oriented Embedded Software In The Field Of Automotive Electronic Technology Research And Development

Automotive electronic software has played a more and more important role inthe automotive industry. Software safety, reliability, robustness have to become a veryimportant issue in automotive area that a safety-critical area.This thesis aims to improve the reliability of automotive electronics software todo some research and realize the module. On the basis of researching AUTOSAR thatcommon standard of automotive electronics software and cooperating closely with carmanufacturers researching requirement on the spot, do some targeted research andrealize it.In AUTOSAR standard, it demand for highly reliable operating system, thekey non-volatile data, end-to-end communications, and program flow monitoringetc.This thesis mainly study on operating systems and the non-volatile storage forcritical data, contribute my strength for the security of automotive electronics software.The main content of this thesis includes:Improving OSEK operating system that already done by laboratory senior in thefield of automotive electronics, adding the timing protection and memory protectionfeatures make them conformity with the needs in the AUTOSAR standard and theneeds of automotive manufacturers. Improve the reliability of the operating system inthe complex environment of Mutli-ECU and reduce error diffusion to a minimum.Make it easy to position errors module quickly and deal with problems. Improvereliability of the operating system.AUTOSAR standard clearly stated key data in a reliable nonvolatile storage. Also,because of the restrictive conditions of the hardware in the embedded environment,make the realization of that part more difficulty. Through realizing the storage stackthree-tier software, make the data be saved, loaded, verified, protection, validation andreliable storage. Not only to ensure the reliability of data and to overcome thelimitations of the hardware environment that only has Flash storage media.Implementation of this subject, to some extent, ensure the reliability ofautomotive electronics software, make the exploratory contribution of Chineseautomotive electronics software,and make the developers in the field of automotive electronics software in China have enough courage and confidence to create the carthat has completely independent intellectual property rights.