Design and Simulation of Combined Accelerator and Brake Pedal

Abstract

The Vehicle Is The Most Used Transport Alternative And The Major Source Of Road Traffic Accident Cause In The World. Even If There Are Many Reasons Like Over-Speed, Inability To Keep Distance, Unexpected Local Driving Practices And Street Livestock. Damages, Fatalities, And Injuries Were Caused By Longer Stopping Distances, Pedal Application Errors, The Requirement Of Driver Effort To Apply The Sudden Brake, And DelayIn Transferring One?�?S Foot From The Accelerator To The Brake, Drivers May Encompass Those Persons Whose Legs May Not Be As Strong To Apply The Brake Pedal And Leg Tonus During An Emergency, Especially In A Situation That Involve Frequent Start And Stop Of The Vehicle. Attempts Have Also Been Made To Solve The Problem Through Different Types Of Combined Brake-Accelerator Pedals. However, The Designs Were Subjected To Ergonomic Problems, Needs Driver Effort To Apply Brake And Also Do Not Totally Illuminate Pedal Application Error. Therefore, The Purpose Of This Thesis Work Is To Solve These Problems, A Combined Brake And Accelerator Pedal Was Designed And Simulated For Taxis. The Method Employed For This Work Is Data Collection, Solid Works Modeling, Simulation, And Motion Analysis. Finally, System Programming With Arduino Software, And Circuit Diagram Using Potentiometric Position Sensor, Arduino Uno, L293n Motor Driver, Stepper Motor And Code Simulation Using Proteus Software. The Analysis Results Of Four Reports Of The Federal Police Commission From 2016 To 2020 Show That In Ethiopia, Taxis Account For 25.03% Of Deaths, 43.04% Of Serious Injuries, 47.3% Of Injuries And 49.84% Of Property Damages Caused By Public Transportation. The Average Property Damage Over The Four Years By Taxis Equals 203,036,437.9etb, Which Equals The Budget Needed To Build Several Full-Cycle Elementary Schools In Remote Areas Of The Country. In Addition, Two Years Traffic Report Analysis Based On Causes Of The Accident Shows That Brake Inefficiency Was Responsible For 34.64% Of Death, 44.26% Of Serious Injuries, 42.88% Of A Slight Injuries, And 37.94% Of Property Damage Caused By Vehicle Side. A Designed PedalIlluminates The Requirement Of Driver-Foot Transfer Between Pedals And Pedal Application Error In Conventional Systems. In Addition To A Decrease In Stopping Distance By 7m, A Reduction In Brake Reaction Time From 0.7sec To 0.5sec And Rid-Off Driver From Applying The Brake Pedal. Therefore, The Designed Combined Pedal Fits Our Country Ethiopia's Traffic Conditions Especially, For Vehicles That Involve Frequent Start And Stop. Finally, It Is Recommended That This Combined Pedal Be Manufactured And Used To Reduce Accidents That May Happen Every Day.