Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 14, 2023
Patent Application Number
17018853
Date Filed
September 11, 2020
Patent Citations
Patent Primary Examiner
CPC Code
An SIL 4 over-speed protection device for a rail vehicle includes a first logical unit configured to be connected to a first power source, a first speed sensor and a first vital supervision circuit and a second logical unit configured to be connected to a second power source, a second speed sensor and a second vital supervision circuit. The first logical unit is configured to determine if the second logical unit is functioning properly and the second logical unit is configured to determine if the first logical unit is functioning properly.
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