公开(公告)号：US20150268073A1

公开(公告)日：2015-09-24

申请号：US14441065

申请日：2013-10-31

Applicant: SNECMA

Inventor： Bruno Robert Gaully ,  Vincent Cabret ,  Amaury Olivier ,  Jerome Guy Roger Sebaa

IPC: G01F1/34 ,  G01M15/04

CPC classification number: G01F1/34 ,  B64D13/00 ,  F02C6/08 ,  G01F1/88 ,  G01F25/0053 ,  G01M15/042 ,  Y02T50/56

Abstract: A method and a device for determining, in real time, the flow rate of air collected from an aircraft engine by a system for collecting air from the engine, including an acquisition device for acquiring at successive times measurements of physical quantities in respect of temperature, pressure and pressure loss, specific for the air collection system, a computing device for evaluating at each current time of the successive times a first current estimation of the flow rate of air collected from the aircraft engine on the basis of said the physical quantity measurements, the acquisition device for acquiring at the current time a minimum current air flow rate data item defined on the basis of a predetermined flow rate tables, the computing device for hybridising, at the current time, the first current air flow rate estimation and said the minimum current air flow rate data item to form a second current air flow rate estimation.

Abstract translation: 一种用于实时地确定由用于从发动机收集空气的系统从飞机发动机收集的空气的流量的方法和装置，包括用于在连续时间内获取关于温度的物理量的测量的采集装置， 压力和压力损失，专用于空气收集系统，计算装置，用于在连续时间的每个当前时间基于所述物理量测量，从飞行器发动机收集的空气的流量的第一当前估计值进行评估， 所述采集装置用于在当前时间获取基于预定流量表定义的最小当前空气流量数据项，所述计算装置用于在当前时间将所述第一当前空气流量估计和所述最小值流 当前空气流量数据项，以形成第二当前空气流量估计。

公开(公告)号：US20150142353A1

公开(公告)日：2015-05-21

申请号：US14409091

申请日：2013-06-24

Applicant: SNECMA

Inventor： Vincent Cabret ,  Cedrik Djelassi

IPC: G01R17/00 ,  G01R19/00

CPC classification number: G01R17/00 ,  G01D5/2291 ,  G01D18/00 ,  G01R19/0084

Abstract: A method for monitoring an LVDT sensor including two secondary circuits, the method including: calculating the difference between voltages at terminals of one of the secondary circuits at a given instant and at a previous instant; calculating the difference between voltages at terminals of the other one of the secondary circuits at the given instant and at the previous instant; calculating the sum of the two differences calculated; modifying an indicator according to a distance to zero of the previously calculated sum; and comparing the indicator with at least one predetermined threshold.

Abstract translation: 一种用于监视包括两个二次电路的LVDT传感器的方法，所述方法包括：在给定时刻和之前时刻计算一个次级电路的端子处的电压差; 计算在给定时刻和之前时刻的另一个次级电路的端子处的电压差; 计算两个差异的总和; 根据先前计算的总和的距离修改指示符; 以及将所述指示符与至少一个预定阈值进行比较。