Flow sensor bit for motor driven compressor

Patent metadata

Field	Value
Publication number	US-10161783-B2
Application number	US-201615096861-A
Country	US
Kind code	B2
Filing date	Apr 12, 2016
Priority date	Apr 12, 2016
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

According to one embodiment, a computer-implemented method for prognostic for flow sensor is provided. The method includes receiving a first input, the first input related to an input power of a motor for driving a compressor, and receiving a second input, the second input related to a temperature differential of the compressor. The method also includes calculating an estimated airflow based on the first input and the second input, and exporting data associated with the first input, the second input, and the estimated airflow.

First claim

The invention claimed is:

1. A computer-implemented method for prognostic for flow sensor, the method comprising:
receiving a first input, the first input related to an input power of a motor for driving a compressor;
receiving a second input, the second input related to a temperature differential of the compressor, wherein the second input is collected during in-flight testing;
calculating an estimated air flow based on the first input and the second input;
exporting data associated with the first input, the second input, and the estimated airflow;
receiving a measured airflow value from a flow sensor; and
comparing the measured airflow value to the estimated airflow, wherein the estimated airflow is based at least in part on compensating the first and second input according to a modulation of an add-heat valve.

2. The method of claim 1 , wherein the first input is a power supplied to the motor driving a compressor.

3. The method of claim 1 , wherein the second input is a temperature differential of an inlet airflow temperature of the compressor and an outlet airflow temperature of the compressor.

4. The method of claim 1 , further comprising transmitting to a device, an event notification based the comparison.

5. The method of claim 4 , wherein the event notification indicates an error, and wherein the transmitting the event notification is responsive to exceeding an error margin.

6. The method of claim 1 , further comprising exporting data corresponding to the first input, the second input, the estimated airflow, and the measured airflow over a specified time period.

7. A system for performing a prognostic for a flow sensor, the system comprising:
a flow sensor;
a compressor driven by a motor;
the system configured to:
receive a first input from a motor controller providing a signal to the motor;
receive a second input from a temperature sensor equipment, the second input related to a temperature differential of the compressor, wherein the second input is collected during in-flight testing;
calculate an estimated airflow based on the first input and the second input;
export data associated with the first input, the second input, and the estimated airflow;
receive a measured airflow value from a flow sensor; and
compare the measured airflow value to the estimated airflow, wherein the estimated airflow is based at least in part on compensating the first and second input according to a modulation of an add-heat valve.

8. The system of claim 7 , wherein the first input is a power supplied to the motor driving a compressor.

9. The system of claim 7 , wherein the second input is a temperature differential of an inlet airflow temperature of the compressor and an outlet airflow temperature of the compressor, where the inlet airflow temperature is measured by an inlet airflow temperature sensor and the outlet airflow temperature is measured by an outlet airflow temperature sensor.

10. The system of claim 7 , further comprising transmit to a device, an event notification based the comparison.

11. The system of claim 10 , wherein the event notification indicates an error, and wherein the transmitting the event notification is responsive to the comparison exceeding an error margin.

12. The system of claim 7 , further comprising exporting data corresponding to the first input, the second input, the estimated airflow, and the measured airflow over a specified time period.

13. The system of claim 7 , wherein the flow sensor is a Venturi flow meter.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Zywiak Thomas M

Classifications

• B64D1/00

  Dropping, ejecting, releasing or receiving articles, liquids, or the like, in flight (refuelling during flight B64D39/00; launching apparatus for projecting projectiles or missiles F41F1/00, F41F7/00; rocket or torpedo launchers F41F3/00; weapon sights or aiming F41G) · CPC title

• B64D2045/0085

  Devices for aircraft health monitoring, e.g. monitoring flutter or vibration · CPC title

• G01F1/44

  Venturi tubes · CPC title

• G05B23/0254 Primary

  based on a quantitative model, e.g. mathematical relationships between inputs and outputs; functions: observer, Kalman filter, residual calculation, Neural Networks · CPC title

• B64D13/06

  the air being conditioned (pressurising B64D13/02) · CPC title