{
  "$type": "site.standard.document",
  "description": "A computer-based control system for a gas turbine engine (10). The control system comprises: a controller (100, 100a, 100b) comprising control logic, the controller (100, 100a, 100b) configured to obtain a set of inputs formed by (i) measurements of one or more process variables (1) and (ii) values…",
  "path": "/patents/1389066",
  "publishedAt": "2025-08-13T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "F01D21/003",
    "ROLLS ROYCE PLC [GB]"
  ],
  "textContent": "A computer-based control system for a gas turbine engine (10). The control system comprises: a controller (100, 100a, 100b) comprising control logic, the controller (100, 100a, 100b) configured to obtain a set of inputs formed by (i) measurements of one or more process variables (1) and (ii) values of one or more engine operation set points (3), and the control logic configured to determine one or more process command values (4) for operation of the gas turbine engine (10) in response to the set of inputs; and an event detection unit (200) configured to obtain further measurements of one or more process variables (1) and determine whether an abnormal event has occurred based on the further measurements of one or more process variables (1). The controller (100, 100a, 100b) comprises a plurality of tuning variables (5) for altering the one or more process command values (4) output by the control logic in response to a given set of inputs, the tuning variables (5) having respective standard values for normal operation of the gas turbine engine (10). The event detection unit (200) is configured to output an event accommodation data array (6) to the controller (100) when an abnormal event is detected, each element in the event accommodation data array (6) corresponding to a respective tuning variable (5) and one or more of the elements assigned intervention values for their respective tuning variables (5). The controller (100, 100a, 100b) is further configured to update the tuning variables (5) using the event accommodation data array (6), a given tuning variable (5) being changed in response to detection of a given abnormal event when the respective element in the event accommodation data array (6) is assigned an intervention value.",
  "title": "GAS TURBINE ENGINE CONTROL SYSTEM"
}