Method to ensure safety integrity of a microprocessor over a distributed network for automotive applications

摘要

A processor integrity system in a vehicle includes m main processor modules that control at least m respective functions of the vehicle, where m is n integer greater than or equal to one. A monitoring processor module controls at least one function of the vehicle, communicates with the m main processor modules over a distributed vehicle network, selectively transmits a query to at least one of the m main processor modules over the distributed vehicle network, receives an answer from the at least one of the m main processor modules over the distributed vehicle network, that verifies integrity of the at least one of the m main processor modules based on the answer.