The Electric CarThe Electric Car

Progress ReportProgress Report

Team Members:

Keith Kolkebeck

Ben McGrath

Mike Rehrman

http://ece.drexel.edu/ev/

OverviewOverview

• Car relocationCar relocation• High Voltage SystemHigh Voltage System• Low Voltage SystemLow Voltage System• BatteriesBatteries• E-meterE-meter• Future PlansFuture Plans

High Voltage SystemHigh Voltage System

• Assessment of the existing systemAssessment of the existing system• Trace the original wiringTrace the original wiring• Sketch the wiringSketch the wiring• Locate a good reference diagramLocate a good reference diagram

High Voltage DiagramHigh Voltage Diagram

High Voltage SketchHigh Voltage Sketch

ComponentsComponents

• 10 12-Volt batteries10 12-Volt batteries • DC-Motor w/ Motor ControllerDC-Motor w/ Motor Controller • Potbox Potbox • 30A Breaker30A Breaker• Charger 120-volt, 20-ampCharger 120-volt, 20-amp• Contactor Contactor • E-meter with ShuntE-meter with Shunt

BatteriesBatteries

• Possible problemsPossible problems– Unable to be chargeUnable to be charge– LocationLocation

• Will attempt to chargeWill attempt to charge• Alternative is the Electrosource Alternative is the Electrosource

Lockheed batteries or new Lockheed batteries or new batteriesbatteries

Low Voltage SystemLow Voltage System

• Originally wired improperlyOriginally wired improperly• Began to rewireBegan to rewire• Extra safety with 2 relaysExtra safety with 2 relays

– Key switch relayKey switch relay– Potbox relayPotbox relay

• Will tie in with OEM 12-volt systemWill tie in with OEM 12-volt system

Low Voltage DiagramLow Voltage Diagram

ComponentsComponents

• DC-to-DC converterDC-to-DC converter • 12-Volt auxiliary battery12-Volt auxiliary battery • Vacuum pumpVacuum pump w/ switch w/ switch• OEM 12-volt electrical systemOEM 12-volt electrical system• Ignition SwitchIgnition Switch • Key switch/potbox relaysKey switch/potbox relays• Indicator LightsIndicator Lights• Analog Voltmeter and AmmeterAnalog Voltmeter and Ammeter

Work CompletedWork Completed

• Removed all low voltage wires and Removed all low voltage wires and componentscomponents

• Started the low voltage rewireStarted the low voltage rewire• Sketched high voltage systemSketched high voltage system• Tested key switch/potbox relaysTested key switch/potbox relays• Tested batteries for a chargeTested batteries for a charge

E-Meter TestingE-Meter Testing

• SunDragon V used for testingSunDragon V used for testing• Configured with 100V prescalerConfigured with 100V prescaler• SunDragon measurementsSunDragon measurements

– 84-volts84-volts– 1.2 amps with 1.2 amps with

blower runningblower running

E-meter SetupE-meter Setup

E-meter LocationE-meter Location

• Center of the DashboardCenter of the Dashboard• Wires are in placeWires are in place

Serial CommunicationSerial Communication

• Trouble communicatingTrouble communicating– SoftwareSoftware– HardwareHardware

• Issues will be resolved early next Issues will be resolved early next termterm

• Output: comma delimited fileOutput: comma delimited file

Future WorkFuture Work

• Complete rewiringComplete rewiring• Attach ChargerAttach Charger• Test low voltage systemTest low voltage system• Attempt to charge the batteriesAttempt to charge the batteries• Install E-meter w/ serial Install E-meter w/ serial

communicationcommunication• Test Car Test Car