JP2877912B
Main (10) and standby (12) computers have their own watchdogs (11,13) and provide outputs to a control signal distributor (14) serving two drivers (15.1, 15.2) or position controllers from a change-over switch (19) and two blocking AND/gates (20.1, 20.2). One level of output represents a security po...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | Main (10) and standby (12) computers have their own watchdogs (11,13) and provide outputs to a control signal distributor (14) serving two drivers (15.1, 15.2) or position controllers from a change-over switch (19) and two blocking AND/gates (20.1, 20.2). One level of output represents a security potential setting the driver (15) into a security operational state. If both m computers (10,12) are found defective by their watchdogs (11,13) this potential appears at both outputs. USE/ADVANTAGE - For e.g. diesel fuel injection pumps. Main and standby computer combination guarantees delivery of control signals with very high probability of their proper computation. |
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