Presentation on theme: "Electric Motorcycle Design Project"— Presentation transcript:
1 Electric Motorcycle Design Project SR. Design ProjectFall 2008-Spring 2009Justin ColeChad DickmanTodd SandersonKris Williams
2 Outline The project Components Where we stand Budget Sample CalculationsData TablesGraphsTimelineWhat’s Next?Conclusion
3 The project Convert gasoline motorcycle to electric EmissionsEnergy crisisIdeal for short commutes.Create publicity for the school.OutreachOpen house
4 Components Batteries Charger 4-12VDC sealed lead acid Designed for electric vehicles.electricmotorsport.comChargerSoneil 48 V 5 ampthunderstruck-ev.com
5 Components (continued) MotorBriggs and Stratton Etek-R8 hp continuous15 hp peakControllerSevcon MilipackRegenerative48VDCWiring, fuses, throttleelectricmotorsport.com
6 Where we stand Motor kit & Batteries Purchased and received electricmotorsport.comPurchased motorcycleLemon and Barrett’sStill need partsChainSprocketsChargerMiscellaneous
7 48 volt System Budget Breakdown Table of budget breakdown ItemPriceSupplierBike$250.00Lemon and Barrett’sKit(which includes the following):$1,075.00electricmotorsport.commotorcontrollerthrottlecontactorfuseswiringCharger$175.00thunderstruck-ev.com4 $70$280.00Chain$100.00Gears$200.00General Costs$300.00subtotal$2,380.00Taxes$142.80Total$2,522.80Table of budget breakdown
8 Sample CalculationsAerodynamic Drag Force (Fd): Cd= Coefficient of drag of the vehicle A= Frontal area of the vehicle in square feet V= The vehicle’s speed in mph Rolling Resistance (Fr): Cr= Rolling resistance factor W= Vehicle weight in lbsForce due to Acceleration (Fa): Ci= Unit conversion factor W= Vehicle weight in lbs a= Acceleration in mph/second Force due to Climbing Hills (Fh): Φ= Angle of incline
9 Sample Calculation (continued) Total Force on the Vehicle (FT): All four forces added together The Horsepower needed (hp): FT= Total Force in lbs V= Speed expressed in mphTorque needed from the Motor (T): hp= Horsepower RPM= Revolutions per minuteConversion from hp to Watts (W):Current needed to Power in Amps(A):V= Volts from the batteryW= Power need to run in Watts
10 Sample Calculations (continued) Time in hours the Vehicle can run (Time):Ah= Amp-hours from the batteryA= CurrentTotal Distance in Miles Vehicle can Drive (D):mph= Speed in mphTime= Time in hours vehicle can runBattery Charging Time (Tc):Ah= Amp-hours from the batteryAmp= Amps from the battery charger
11 Acceleration Resistance Data TablesSpeedForcemphAerodynamicRolling ResistanceWind ResistanceAcceleration ResistanceHill ClimbTotal50.1287.32069.36514.6391.446100.51291.830151.15192.469202.04693.364253.19794.515304.60495.922356.26697.584408.18499.502Table of various resistive forces with a constant acceleration of 3 mph/sec and a 3% grade.
12 Data Table (continued) SpeedAccelerationForce TotalPowerTorqueCurrentTimeDistanceRPMmphmph/seclbsHPWft*lbsAmpsHrsminMiles2830.640130.573.266.0550.700.6941.4227.62253.695.7310.6389.040.3923.5815.72376.818.1915.20127.380.2716.4910.99499.9310.6619.78165.730.2112.678.455123.0613.1324.35204.070.1710.296.86Table of Distance and other parameters with varying accelerations
13 Data Tables (continued) SpeedGrade of InclineForce TotalPowerTorqueCurrentDistanceMPH%lbsHPWft*lbsAmpsMiles40120.382.174.0333.8041.42225.262.695.0041.8933.423220.127.116.1149.9828.01435.013.736.9358.0624.11539.874.257.8966.1321.17644.734.778.8574.1818.87749.585.299.8182.2217.03Table of Distance and other parameters with varying inclines
14 Data Tables (continued) Accelerating at 4 mph/secAccelerating to 40 mphTotal KWh from the batteriesKW needed for accelerating at 4mph/secAccelerating Time in Hours (30 stop and go's)KWh used when accelerating at 4 mph/sec for a total of 5 min worth of acceleratingDistance traveled accelerating0 to 50.5990.010.055 to 101.8010.020.1010 to 153.0140.030.1615 to 204.2460.040.2120 to 255.5050.060.2625 to 306.7980.070.3130 to 358.1340.080.3635 to 409.5180.42Total KWh used acceleratingRemaining KWhHours of constant speedDistance traveled in miles after Accelerating at 40 mphDistance traveled accelerating (miles)Total Distance traveled in miles0.410.590.4417.561.8819.43Table of distance with a period of acceleration followed by a period of constant speed.
17 Previous Designs Very similar Verified project calculations MotorBatteriesType of bikeVerified project calculationsMade in home garage.Proves feasibilityTotal project costs less than $3000Picture of bike that uses the same motor and type of batteries as this project.
18 Current Timeline Electric Bike Conversion Gantt Chart Timeline October NovemberJanuaryFebruaryMarchAprilMay1234ResearchBudgetCalculationsDesign of Bike SpecsDesign of Bike LayoutWriting Sponsorship ProposalPresenting to CompaniesPurchasing the BikeBuy BatteriesBuild Batt. TraysBuy Electric Motor KitDrive train AssemblyMotor MountElectric AssemblyTestingDemo
19 What’s Next? Bike preparations Layout of components Bike Design AssemblyWiringTestingDemonstrations
20 Conclusions The design is feasible Some minor funding is still needed The project is coming along pretty well according to the plan.The preliminary research and calculations are complete.The bike is ready to begin laying out the components.