Transcript HEV HMMWV - University of Idaho

ONR HEV HMMWV
Team Assault and Battery
Team Members: Linnea Anderson, Bryan Blakley,
Matthew Braley, Danny George, Slade Klein,
Chad Schierman, Matt Shaw, Albert Whetstone
Team Advisors: Steve Beyerlein, Herb Hess
Team Mentors: Brice Quirl, Yu-Chen Lu
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Outline
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Background
Overview of Project
Current State of Affairs
Electrical Systems
Mechanical Systems
Design Options
Work Schedule
Budget
Conclusion
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Background
Team Assault and Battery has received a military grade HMMWV
from the U.S. Marines that has been previously converted to a
Hybrid Electric Vehicle (HEV). It is currently in a non-running
condition due to various subsystem conflicts and possible issues
with non-working parts. The focus will be to unify the electric bus
to 360V. The next focus is to install monitors and thermal controls
to test the performance of the next generation of lead-acid
batteries that are currently in development. This will require the
implementation of an advanced control and display system. Also
we will be working to incorporate aspects of regenerative braking
control and advanced battery management systems. The
HMMWV will have operational characteristics as close to those of
a normal HMMWV as possible.
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Needs-Specifications
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Get the HMMWV self propelled
Unify the battery bus to 360 VDC
Regulate the battery box to 100±20 °F
Instrument the battery pack and
vehicle
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Current State of Affairs
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Electronics submersed for an
extended period of time
Unknown condition of power plant/
engine
24 VDC system requires upgrading
No documentation for current systems
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Current State of Affairs
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Overview
CAN 2.0 Bus Communications
Drive Power
Signals
AC 150
PEU
360 VDC
Inverter Regen
Power Plant
360V
360 VDC
Drive Motor
Thermal Managment
Control
Monitoring
Battery Pack
360V Nominal
360 VDC for Auxiliary Power
Data Acquisition Signals
Monitor and Control
Sensors
DC/DC converter
Data Acquisition
System
Driver Information
Control/Management
Data Acquisistion Signals
Sensors
12 VDC Auxiliary
System
24 VDC Auxiliary
system
12 VDC Rail
24 VDC Rail
24 VDC
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Electrical Systems
Battery Pack
Battery Pack
Thermal
Management
Individual Voltage
Individual Temp
Pack Current
Temp
Heater control
Aux Power
Pedal Positions
Throttle and Brake
Mux or Signal Conditioning
Voltage
Current
Temp
Driver Information
Data Acquisition System
Data Storage
Driver Interface
SOC
Engine RPM
Water Temp
Driver Input
Reset
Etc.
Drive Position
Forward
Reverse
Neutral
AC 150
Main Bus Voltage
~360V Nominal
Outputs
Current
Voltage
Regenerative variance
Etc.
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Electrical Systems Instrumentation
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Alternative 1 – Microcontroller Based
Pros:
 Less initial cost
 Distributed computing
 Task specific
 Low power
Cons:
 Extensive development time
 Expandability issues
 Task Specific
 Exponential learning curve
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Electrical Systems Instrumentation
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Alternative 2 – NI PXI Based
Pros:
 Ready to connect
 Low development time
 Highly reconfigurable
 Extremely expandable
 Graphical interface capable
Cons:
 Larger initial cost
 No sleep mode
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Electrical Systems
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Power distribution
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Buck converter
12V Auxiliary Batteries
Vehicle auxiliary systems
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Electrical Systems
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Alternator
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AC 150 integration
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Starting circuit
Inputs
CAN bus
Thermal Management
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Monitor
Control
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Battery Box Configuration
Substitute Batteries
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Battery Box Configuration
Advanced Lead Acid Batteries
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Thermal Management
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Alternative 1 – Fans and Blankets
Pros:
 Distributed heat source
 Not dependent on APU for heat source
 Quick response time
 Location specific heating
 Low maintenance
Cons:
 Moderate power consumption
 No active cooling
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Thermal Management
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Alternative 2 – Engine Heat Transfer
Pros:
 Readily Available
 Recaptures otherwise lost energy
Cons:
 Engine must be operating
 Slower response time
 Less temperature gradient control
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Motor Mounting
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Requires Battery Box Modification
Fabrication of Mechanical Adapters
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Environmental protection
Torque control
Gear reduction
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Work Schedule
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Budget
Item
subcategory
Estimated Actual
Proposed
propulsion system
$30,000.00
AC 150 Retrofit
Gear Redux
$5,000.00
$200.00
Thermal management (Battery Box)
radiator
water pump
tubing
radiator fans
heat pads
Thermal Blankets
$320.00
$90.00
$100.00
$150.00
$4,000.00
$244.00
Batteries
commercial
$1,600.00
Battery Management System
Battery Box Modification
materials
$700.00
Instrumentation
NI PXI chassis
Touch Screen display
$18,000.00
$500.00
Power distrobution
DCDC
$1,661.00
Cableing
Connectors
$1,000.00
$1,000.00
Incidentals
total in
total out
difference
$30,000.00
$34,565.00
$4,565.00
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Conclusion
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Background
Overview of Project
Current State of Affairs
Electrical Systems
Mechanical Systems
Design Options
Work Schedule
Budget
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Questions?
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Team Photograph
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