US 2025/0106792 A1Published application

Method for engine control and monitoring system

AssigneeROLLS-ROYCE plc

InventorsStuart A. GRIFFITHS, Saim Ahmed

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Abstract

Synchronisation methods for synchronising processor nodes of an Engine Control and Monitoring System (ECaMS) for an engine. A method comprises counting, at a first acquisition integrated circuit in a first processor node of the ECaMS, a first control cycle count, and storing at the first acquisition integrated circuit a first transmission slot index. The method further comprises counting a second control cycle count and storing a second transmission slot index at a second acquisition integrated circuit in a second processor node of the ECaMS. The method also comprises transmitting a message including the first control cycle count and transmission slot index from the first to second acquisition integrated circuits, and receiving the message at the second acquisition circuit. The method also comprises synchronising the first and second processor nodes using the first and second control cycle counts and transmission slot indexes.

Claims17

Dependent claims

A synchronisation method for synchronising processor nodes of an Engine Control and Monitoring System, ECaMS, for an engine:

counting, at a first acquisition integrated circuit in a first processor node of the ECaMS, a first control cycle count;
storing, at the first acquisition integrated circuit, a first transmission slot index;
counting, at a second acquisition integrated circuit in a second processor node of the ECaMS, a second control cycle count;
storing, at the second acquisition integrated circuit, a second transmission slot index;
transmitting a message from the first acquisition integrated circuit to the second acquisition integrated circuit, the message including the first control cycle count and the first transmission slot index;
receiving the message at the second acquisition integrated circuit;
and
synchronising the first processor node and the second processor node using the first control cycle count, second control cycle count;
first transmission slot index and second transmission slot index.

6 more elements

Dependencies are inferred from the claim text.