Slide 1

James KastAndrew KuharskeTimothy LenbergDaniel Taylor

11IntroductionObjective: To advance the development of an in house hybrid electric vehicle for use in testingDr. Dean Edwards' experimental lead acid batteries.

Background:Existing platform containing Dr. Edwards batteriesComponents from HUMV

SpecsAPUPEU/MotorExhaustSafety22AccomplishmentsThis semesterAxels installedFirst Battery Isolation TestVoltage Controlled Fuel Test

3Auxiliary Power Unit (APU)

4Throttle ControlControl Method OptionsMechanical ControlElectrical Control

5MicrocontrollerController ChoiceFamiliarityAnalog Inputs

APU Control Scheme OptionsLinear OrganizationRTOS Centered

6Sensing TaskCheck SensorsCheck for OvervoltageIncrement Coulomb CountCheck Charge Parametersvtaskdelay7I/O TaskCheck ButtonsDecode ButtonsOutput LEDsUpdate LCDvtaskdelay8APU Start TaskConnect Kill SwitchStartvtaskdelay(?)Altern.VoltageStep Up VoltageRegulate VoltageConnect9APU Operation TaskAssess State+/- Throttle Voltagevtaskdelay10APU Shutoff TaskDisconnectDecelerateDisconnect Kill Switch11APU Questions?12Sensor & Button Placement

13Sensor Placement1

14Voltage SensorSpecifications500Vdc ratedDigital/Analog outputAccuracy