Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Airplane brake pedal displacement sensor electrical adjustment method

A displacement sensor and brake pedal technology, which is applied to aircraft braking arrangements, instruments, control mechanisms, etc., can solve the problems of adding additional hardware circuit electrical adjustment to the brake pedal displacement sensor, shortening installation and disassembly time, and reducing maintenance costs. , The effect of improving the output signal consistency

Active Publication Date: 2018-08-28
XIAN AVIATION BRAKE TECH
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Patent CN105865323A "An Angular Displacement Sensor Calibrator" discloses a design method of an angular displacement sensor calibrator. The calibrator can calibrate the electrical zero position of the sensor, but it must be implemented based on a hardware circuit and cannot adjust the displacement of the brake pedal. The sensor achieves electrical regulation without adding additional hardware circuits

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Airplane brake pedal displacement sensor electrical adjustment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0015] This embodiment is a method for electrically adjusting the brake pedal displacement sensor.

[0016] It should be noted that the following steps are only for the single channel of the brake pedal displacement sensor. The total number of channels is determined according to the number of brake pedal displacement sensors installed on the aircraft. In the specific implementation process, the following steps need to be performed for the channel corresponding to each brake pedal displacement sensor . See figure 1 .

[0017] Step 1: The aircraft operator sends the "brake pedal displacement sensor self-adjustment" command to the brake control unit BCU through the central maintenance system CMS;

[0018] Step 2: The brake control unit detects the brake pedal displacement sensor and judges the failure status of the brake pedal displacement s...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an airplane brake pedal displacement sensor electrical adjustment method. The method comprises the following steps: for a pilot, sending an adjustment need instruction to a brake control unit through a central maintenance system, and under the premise that a brake pedal displacement sensor does not have fault, carrying out "zero-journey" and "full-journey" two rounds of collection; carrying out comparison on the collected two rounds of data, and if the value is within an error range, serving and recording the value as a new electrical journey start point and end point;and feeding back the new electrical journey start point and end point to a brake control system to calculate brake pedal displacement correction amount. The method can greatly improve consistency ofoutput signals of all channels of a multi-redundancy brake pedal displacement sensor, so that consistency of airplane wheels of an airplane is greatly improved, and the problems of airplane yaw, overheating of some brake devices and large wear difference of brake discs and the like are effectively prevented; and meanwhile, mounting and dismounting time of the brake pedal displacement sensor is reduced, and maintenance cost of the brake system is reduced.

Description

technical field [0001] The invention belongs to the technical field of aircraft brakes, and relates to an electrical adjustment method for a displacement sensor of an aircraft brake pedal. Background technique [0002] At present, international mainstream aircrafts all use redundant brake pedal displacement sensors, but due to the limitation of manufacturing process, the signal consistency of each channel output by redundant brake pedal displacement sensors is poor, and the unevenness of each channel is generally about 3%, while the brake pedal Displacement signals are generally used to control the brake pressure of different wheels, so the consistency of the brake pressure of each wheel will inevitably be poor, which will cause problems such as aircraft yaw, overheating of individual brake devices, and large differences in brake disc wear. [0003] According to engineering experience, when the brake pedal displacement sensor is installed on the brake pedal for the first tim...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/02B64C25/44
CPCB64C25/44G01B21/02
Inventor 罗科训刘珊刘劲松陈国慧
Owner XIAN AVIATION BRAKE TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products