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Method and system for testing frequency bandwidth of electric steering engine

An electric steering gear and frequency bandwidth technology is applied in the field of electric steering gear frequency bandwidth testing, which can solve the problems of inability to calculate the frequency bandwidth of the electric steering gear and less rudder return data.

Active Publication Date: 2014-07-23
SICHUAN AEROSPACE FENGHUO SERVO CONTROL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a method and system for testing the frequency bandwidth of an electric steering gear, which solves the problem that in the existing frequency bandwidth testing method, when the industrial computer sends high-frequency rudder control data, the feedback data it receives is rudder feedback. The lack of data leads to a technical problem that the frequency bandwidth of the electric steering gear cannot be calculated

Method used

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  • Method and system for testing frequency bandwidth of electric steering engine
  • Method and system for testing frequency bandwidth of electric steering engine
  • Method and system for testing frequency bandwidth of electric steering engine

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0038] Such as figure 1 Shown is a flow chart of a method for testing the frequency bandwidth of an electric steering gear of the present invention, and the specific steps of the method may include:

[0039] Step S101: When receiving the test start signal sent by the industrial computer, send the generated steering control data to the electric steering gear.

[0040] In the embodiment of the present invention, when the frequency bandwidth of the electric steering gear controlled by the digital electric steering gear controller needs to be tested, the industrial computer only needs to send a test start signal to the digital electric steering gear controller, At this time, because the staff has pre-loaded the program written according to the operation requirements of the electric steering gear into the digital electric steering gear controller, once the digital electric steering gear controller receives the test start signal, its The pre-loaded program will be run to generate r...

Embodiment 2

[0054] Such as figure 2 As shown, it is a schematic structural diagram of a digital electric steering gear controller of the present invention. The digital electric steering gear controller may include: a frequency bandwidth testing module 203 connected to the industrial computer 201 and the electric steering gear 202 respectively.

[0055] For the digital electric steering gear controller that only includes the normal state control module 204, in actual use, it has only been used 35% of the resources, and when the digital electric steering gear controller adopts an FPGA chip, its interior is As long as the parallel operation method is properly controlled, the addition of new functions will not affect the original basic functions. Therefore, in order to make full use of its remaining resources, the embodiment of the present invention adds a frequency bandwidth test to the original digital electric steering gear controller. Module 203.

[0056] In the actual application of th...

Embodiment 3

[0063] Such as image 3 As shown, it is a flow chart of another electric steering gear frequency bandwidth testing method of the present invention, the method is applied in the electric steering gear frequency bandwidth testing system, and the system may include a data buffer controller and a digital electric steering gear controller, The specific steps of the test method may include:

[0064] Step S301: When the data buffer controller receives the test start signal sent by the industrial computer, send the pre-stored steering control data to the digital electric steering gear controller.

[0065] In the embodiment of the present invention, by setting a data buffer controller between the industrial computer and the digital electric steering gear controller, the steering control data used to control the operation of the electric steering gear is pre-stored, so that the industrial computer only needs to send the data to the The buffer controller sends a test start signal to tri...

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Abstract

The invention provides a method and a system for testing the frequency bandwidth of an electric steering engine. When a test starting signal sent by an IPC (Industrial Personal Computer) is received, a digital electric steering engine controller transmits rudder control data to the electric steering engine so as to control the electric steering engine to operate, and then rubber return data output by the electric steering engine can be obtained by sampling time intervals corresponding to the current transmission frequency transmitted by rubber control data, so as to guarantee that a data buffer control unit can acquire the same quantity of the rudder return data in any transmitting period of the rudder control data, and then guarantee the IPC can receive enough rudder control data and the matched rudder return data according to the received quantity, and calculate the frequency bandwidth of the electric steering engine.

Description

technical field [0001] The invention relates to the field of electric steering gear testing, in particular to a method and system for testing the frequency bandwidth of an electric steering gear. Background technique [0002] In the actual application of the existing motor servo system, it is usually necessary to test the frequency bandwidth of the analog electric steering gear controller included in it, that is, to send an analog voltage signal to the analog electric steering gear controller through the industrial computer (ie, the rudder control data), and receive the analog voltage signal of the electric steering gear fed back by the analog electric steering gear controller (that is, the rudder return data), and then calculate the frequency bandwidth of the electric steering gear according to the two analog voltage signals. [0003] However, with the continuous improvement of aircraft performance requirements, the electric servo system is developing in the direction of co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B23/02
Inventor 刘华峰华仕容董阳霞刘振敏张婧孙恒博
Owner SICHUAN AEROSPACE FENGHUO SERVO CONTROL TECH CO LTD