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Micro Electric Urban Vehicle Phase III

Micro Electric Urban Vehicle Phase III. Students: Nathan Golick Kevin Jaris Advisors: Mr. Gutschlag Dr. Anakwa. Outline of Presentation. Project Summary Review of previous work Functional Description Block Diagrams Functional Requirements Performance Specifications

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Micro Electric Urban Vehicle Phase III

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  1. Micro Electric Urban VehiclePhase III Students: Nathan Golick Kevin Jaris Advisors: Mr. Gutschlag Dr. Anakwa

  2. Outline of Presentation Project Summary Review of previous work Functional Description Block Diagrams Functional Requirements Performance Specifications Equipment and parts list Schedule of tasks to be completed

  3. Project Summary Create Simulink models for regenerative braking subsystem. Use additional DC motor to simulate vehicle braking dynamics. Use power electronics to recover energy provided by the additional DC motor during the simulated braking process. Investigate the option of implementing a variable speed motor drive. If time permits integrate completed design on the Miniature Electric Urban Vehicle (MEUV).

  4. Review of Previous Work: Phase I Researched all components of a micro electric vehicle. Created a drive model. Selected optimal components for a test platform. Built a prototype MEUV.

  5. Phase I Final Design • Motor • D&D Separately Excited Brushed DC • Model: ES-10E-33 • 8 HP Continuous • 6.7” Diameter • 11” Length • 56 lbs • 7/8” x 2” Shaft • 3/16” Keyway

  6. Phase I Final Design • Controller • Alltrax DCX600 • 24-48V Battery Input • 600 Amp Limit for 2 minutes • 30 Amp Field Winding Limit • Standby current: < 35mA • Drives motor to 17 peak HP • 18 kHz Operating Frequency • -25 C to 75 C Operating Temperature • 95 C shutdown

  7. Phase I Final Design • Battery • Three 12 Volt Lead Acid Batteries • 44 Ah Capacity each • Low Cost

  8. Phase I Final Design • Single speed gear reduction drive

  9. Review of Previous Work: Phase 2 • Create Simulink Models • Battery • DC Motor • Controller • Vehicle Dynamics • Data Collection (minimal)

  10. Project Description Use an additional DC motor to drive the go-cart motor and use power electronics to recover the kinetic energy during braking simulations. Use a controlled voltage on the additional motor to simulate various braking profiles applied to the go-cart motor. Model regenerative braking subsystem in Simulink. Perform multiple simulations to verify the design. Investigate the possibility of using a variable speed drive to recover energy at lower speeds. Integrate completed design with the Miniature Electric Urban Vehicle (MEUV).

  11. System Block Diagram

  12. Functional Requirements Brake pedal shall apply regenerative braking up to approximately 75% displacement. Brake pedal shall apply hydraulic and regenerative braking above 75% pedal displacement. Power electronics shall optimize the recovery of the available kinetic energy. Batteries and possibly super capacitors shall store all energy recovered by the power electronics.

  13. DC – DC Boost Converter Boost Converter Schematics Vo/Vi = 1/(1-D) Boost Converter Idealized Equation

  14. Equipment List Vehicle Platform • Make: Vector Go Kart • Model #: 4170 • Brakes: 7.5" hydraulic disc with parking brake • Tires (Front): 16"x6"x8" • Tires (Rear): 16"x7"x8" • Dimensions: 72"L x 46"W x 49"H • Wheel Base : 47.5" • Seat to pedals: 33" to 37" • Curb weight: 310lbs • Max. Rider weight: 300lbs

  15. Equipment List Batteries(3) • Product ID: Interstate SLA1161 • Type: Sealed lead acid • Voltage: 12V • Capacity: 44 Ah Controller • Type: Alltrax DCX-600

  16. Equipment List Motor (Go Kart) • Type: D&D Separately Excited Brushed 24-48V DC Motor • Model #: ES-10E-33 • Max power: 17HP • Max speed: 3000RPM

  17. Equipment List Braking Simulation Motor • Type: Yet to be determined. Voltage Profile Controller • Yet to be determined.

  18. Schedule of Future Tasks

  19. Questions?

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