Method of controlling a turbomachine

1. A method of controlling a turbine engine, the method comprising:

measuring a first temperature by a first temperature sensor;

measuring a second temperature by a second temperature sensor;

estimating a third temperature modeling the first temperature;

determining at least one control setpoint for at least one piece of variable-geometry equipment of the engine, as a function of the measured first temperature;

the first sensor presents a time constant longer than a time constant of the second sensor; and the method further comprising:

detecting ingestion of water or hail as a function of a drop in the measured second temperature;

when water or hail ingestion is detected, determining the control setpoint as a function of the estimated third temperature; and

controlling the at least one piece of variable-geometry equipment of the engine based on the determined control setpoint.

2. A control method according to claim 1 , wherein the first temperature is a temperature at an inlet of a compressor of the turbine engine and the second temperature is a temperature at an outlet from the compressor.

3. A control method according to claim 2 , wherein the first temperature sensor has an active portion that is not protected from water or hail by an inertial separator.

4. A control method according to claim 2 , wherein the control setpoint is an angle setpoint for a set of variable-pitch stator vanes of the compressor.

5. A control method according to claim 4 , wherein, when no water or hail ingestion is detected, the determining comprises determining the control setpoint while using a first control relationship, and when water or hail ingestion is detected, the determining comprises determining the control setpoint while using a second control relationship that is different from the first control relationship, and wherein for a given input temperature, the second control relationship delivers an angle setpoint that is more closed than does the first control relationship.

6. A non-transitory computer readable medium including computer executable instructions for executing a method of controlling a turbine engine, when executed by a computer, the method comprising:

measuring a first temperature by a first temperature sensor;

measuring a second temperature by a second temperature sensor;

estimating a third temperature modeling the first temperature;

determining at least one control setpoint for at least one piece of variable-geometry equipment of the engine, as a function of the measured first temperature;

the first sensor presents a time constant longer than a time constant of the second sensor; and the method further comprising:

detecting ingestion of water or hail as a function of a drop in the measured second temperature;

when water or hail ingestion is detected, determining the control setpoint as a function of the estimated third temperature; and

controlling the at least one piece of variable-geometry equipment of the engine based on the determined control setpoint.

7. An electronic unit for controlling a turbine engine, the electronic unit comprising a memory including a computer readable medium including computer executable instructions for executing a method of controlling the turbine engine, when executed by a computer, the method comprising:

measuring a first temperature by a first temperature sensor;

measuring a second temperature by a second temperature sensor;

estimating a third temperature modeling first temperature;

determining at least one control setpoint for at least one piece of variable-geometry equipment of the engine, as a function of the measured first temperature;

the first sensor presents a time constant longer than a time constant of the second sensor; and the method further comprising:

detecting ingestion of water or hail as a function of a drop in the measured second temperature;

when water or hail ingestion is detected, determining the control setpoint as a function of the estimated third temperature; and

controlling the at least one piece of variable-geometry equipment of the engine based on the determined control setpoint.