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

Distributed Control Sensing

Team 1911

Stefan Bilyk, Zach Samih, Mehdin Muratovic

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• Sponsor
• Introduction
• Schedule
• Design
• Simulation
• PCB
• Enclosure
• Testing

Presentation Outline

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Sponsor

Company: Triumph Engine Control Systems Representative: Duane James Location: West Hartford, CT. Triumph specializes in the production of aerospace components such as: ■ Fuel pumps ■ Fuel metering units ■ Fuel controls ■ Electronic engine control systems Budget: $1000

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Our goal is to create a “smart sensor” that will condition and process a signal locally and output the result to the engine control unit (ECU) via controller area network (CAN). Benefits of this include:

○ Eliminates long heavy cables from the wiring harness. ○ System becomes modular, repairs can be done without replacing the entire ECU. ○ Electromagnetic interference (EMI) is reduced. ○ Eliminates additional heavy EMI and lightning resistance components.

Introduction

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Trade Study / Part Selection Completed Circuit Design November 10th Completed Simulation November 15th Completed Design PCB November 30th In Progress Order PCB December 7th Troubleshooting January 15th Project Completion February 18th

Schedule

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Design

• We designed the circuit and PCB with these considerations.

○ Conditions Signals Locally ■ To decrease noise, which eliminates the need to use noise reducing components. ○ Self Powered ■ As this control system is going to process the input at the sensor, we do not have a power source to draw current from. ○ Keep the sensor relatively the same size.

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Design - Block Diagram

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Transducer Input Clipping Circuit Power Supply Comparator Output

Design - Circuit

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Clipping Power Supply Comparator

Simulation - Results

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PCB Design

Design Considerations

• The PCB is elongated to fit inside a cylinder attached to the

sensor.

• Dimensions are 2.930in x 0.70in
• Goal: Add more test points and miniaturize further by placing

components on both top and bottom sides of the PCB.

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Enclosure

Red - PCB Blue - Rectangular Encasing Light Blue - Inside of Encasing Black - Variable Reluctance Sensor ← VR Sensor

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Testing

Triumph will provide a test rig that is capable of simulating a rotating gear to test

• ur circuit.

This test will simulate much of the mechanical and electrical noise associated with the engine.

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Expenses

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Parts LMC7221 Open Drain Comparator $6.66 LI1308 BOOST DC/DC Converter $0.51 Industrial Magnetic VRS Speed Sensor $234.32 Equipment Currently N/A $0.00 Total Budget $1000.00 Total Cost $241.49 Remaining Budget $758.51

Questions?

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