METHOD TO ENSURE SAFETY INTEGRITY OF A MICROPROCESSOR OVER A DISTRIBUTED NETWORK FOR AUTOMOTIVE APPLICATIONS
First Claim
1. A processor integrity system in a vehicle, the system comprising:
- 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; and
a monitoring processor module that controls at least one function of the vehicle, that communicates with the m main processor modules over a distributed vehicle network, that selectively transmits a query to at least one of the m main processor modules over the distributed vehicle network, that receives an answer from the at least one of the m main processor modules over the distributed vehicle network, and that verifies integrity of the at least one of the m main processor modules based on the answer.
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Abstract
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.
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Citations
20 Claims
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1. A processor integrity system in a vehicle, the system comprising:
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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; and a monitoring processor module that controls at least one function of the vehicle, that communicates with the m main processor modules over a distributed vehicle network, that selectively transmits a query to at least one of the m main processor modules over the distributed vehicle network, that receives an answer from the at least one of the m main processor modules over the distributed vehicle network, and that verifies integrity of the at least one of the m main processor modules based on the answer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A processor integrity method in a vehicle, the method comprising:
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controlling at least m respective functions of the vehicle using m respective main processor modules, where m is n integer greater than or equal to one; controlling at least one function of the vehicle using a monitoring processor module; communicating with the m main processor modules over a distributed vehicle network using the monitoring processor module; selectively transmitting a query from the monitoring processor module to at least one of the m main processor modules over the distributed vehicle network; receiving an answer from the at least one of the m main processor modules at the monitoring processor module over the distributed vehicle network; and verifying integrity of the at least one of the m main processor modules based on the answer using the monitoring processor module. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification