Distributed Control Sensing Team 1911 Stefan Bilyk, Zach Samih, - - PowerPoint PPT Presentation

Distributed Control Sensing

Team 1911

Stefan Bilyk, Zach Samih, Mehdin Muratovic

Outline

• Background
• Approaches
• Results to Date
• Timeline
• Budget Spending
• Demo Day Plan
• Final Deliverables

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Background

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Sponsor

Company: Triumph Engine Control Systems Representative: Duane James Location: West Hartford, CT. Budget: $1000 Advisor: Dr.Helena Silva

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Triumph specializes in the production of aerospace components such as: ■ Fuel pumps ■ Fuel metering units ■ Fuel controls ■ Electronic engine control systems

Background

Solution: A distributed control sensor, or a “smart sensor” will condition and process its data locally near the sensor and provide a digital equivalent of a sinusoidal output. To accomplish this we must design and connect a conditioning and processing circuit to a Commercial Off The Shelf (COTS) sensor.

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Challenge: Aircraft manufacturers strive to make aircraft as light and strong as possible without increasing the cost drastically. Distributed control sensing (DCS) is widely used in many consumer products but the aerospace industry has been slow in implementing this

• technology. This design project provides a step

towards implementing DCS technology.

Approaches

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Approaches

Possible Sensors Selection:

• LVDT (Linear Variable Differential

Transformer)

• RVDT (Rotary Variable Differential

Transformer)

• PMA (Permanent Magnet Alternator
• VRS (Variable Reluctance Sensor Passive)

Triumph recommended we improve the VR Sensor because it is most frequently used.

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Approaches

VR Speed Sensor

• Frequency and voltage are directly

proportional. Converting the Passive Sensor into an Active Sensor.

• Rectify voltage from the differential sine wave

sensor output.

• Convert analog frequency to TTL logic signal.
• Use microcontroller unit (MCU) to transmit a

serial output to engine control module (ECM) via controller area network (CAN).

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Signal Conditioning/Processing Block Diagram

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Circuit Diagram

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MCU

Challenges

Challenges:

• Not enough voltage coming from VR speed

sensor.

• Minimize size of final product.
• Timing of MCU

Solutions:

• Utilize a higher voltage output vr speed

sensor.

• Designing a PCB and PCB enclosure.
• Utilize an external crystal to provide better

timing to the MCU

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Results to Date

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Results to Date

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Trade Study / Part Selection Assemble components on PCB Circuit Design 3D Print Housing Fixture Simulation Write code for MCU to read RPM Design PCB Install Shield and Sensor to Test Rig Order PCB Order New Sensor and Run Tests. Order Test Rig Order PCB v2.

Timeline

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Timeline

15 April 19th PCB + Sensor Rev 2

We have ordered a smaller profile PCB & a higher output VR sensor.

April 24th Testing

We tested the operation of the smart sensor.

April 29th Project Completion

Practice Run at Triumph in West Hartford or uConn.

May 3rd Demo Day

Demonstration Day at UConn.

Budget Spending

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Budget Spending

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Item Description Cost PCBs

• Incl. Boards &

Components $190 Sensors VRS Sensors $394.33 Housings 3D Printed PCB Housings $20 Test Rig Lathe & RPM Gauge $165.99

Budget

$1000.00

Total Cost

$770.32

Budget Remaining

$229.68

Demo Day Plan

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Demo Day Plan

We will present a 3D printed example of our VRS “smart sensor” as well as a working prototype model connected to a lathe. Audience may use the lathe to test the “smart sensor” and reference its accuracy to our digital laser photo tachometer and oscilloscope by varying the speed between 780 to 3200 rpm.

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Final Deliverables

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Final Deliverables

The deliverables to this project: 1. Proof of concept. 2. Research and Design. 3. “Smart Sensor” Housing. 4. Mechanical Test Rig for VR speed sensor

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Questions

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