A method of tracking memory error defects of a control system includes receiving at a processor 540 error correction code ECC information from a memory unit 510, including location information, and determining the cumulative number of error correction codes for each memory location. The cumulative number or rate of occurrence of ECCs may be compared to a threshold (stored in a lookup table) and an output flag or warning alert alarm sounded or lighted 570 when a threshold is exceeded. A threshold may be adjusted, increased, decreased, depending on a memory unit parameter such as operational time, age, temperature, workload, altitude location. A failure mode may be determined by comparing the active, operational time or age of the memory unit to a threshold. Whether a code is new, repeated or code type, may be determined. The memory units may form part of a microprocessor. An assessment of memory unit condition and determination of failure likelihood may be made. A power steering control system for a vehicle may use the memory error tracking method.
Memory error tracker
2024-12-11
Patent
Electronic Resource
English