Transcript Presentation 1 Slides

Battery Charging System for Toy Truck
Capstone Design Project Spring 2007
AKA: Chain Saw
Team #4: Staff
• Kassie Shore
• BSEE
• Mark Noller
• BSEE
• Eric Fitch
• BSEE
• Josh Siehoff
• BSEE
Team #4: Expertise &
Experience
• Kassie Shore
• Expertise: Soldering, PLC Programming,
Project Manager
Experience: 4 Coop Semesters at B&S
• Mark Noller
• Expertise: Soldering, EMC
Experience: 4 year at Harley
• Eric Fitch
• Expertise: Soldering, Microcontroller,
Elec/Mech Tech
Experience: Military, Industrial Tech
• Josh Siehoff
• Expertise: Flying Planes
Experience: Pilot
Team #4: Weekly Availability
Worksheet
• Kassie Shore
• 15-20 hrs/week
• Mark Noller
• 15-20 hrs/week
• Eric Fitch
• 20 hrs/week
• Josh Siehoff
• 15 hrs/week
Team #4: Weekly Project
Meeting Plan
• Weekly Meeting 1:
• Weekly Meeting 2:
• Weekly Meeting 3:
• Weekly Meeting 4:
• Weekly Meeting 5:
• Weekly Meeting 6:
UWM, Wednesday 5:00-6:30 PM
Kassie, All, Discuss Roles and Project Ideas
UWM, Wednesday 5:00-6:30 PM
Kassie, All, Needs for Project and Start Design
UWM, Wednesday 5:00-6:30 PM
Kassie, All, Continue Design and Split up the Project
UWM, Wednesday 5:00-6:30 PM
Kassie, All, TBD
UWM, Wednesday 5:00-6:30 PM
Kassie, All, TBD
UWM, Wednesday 5:00-6:30 PM
Kassie, All, TBD
Team #4: Total Resources
• 60 hrs/week
• $100-$1000+ pending sponsorship
Team #4: Decision Making
• Our team will make decisions by
consensus.
• If we can not come to a consensus, we will
seek our Lab Assistant.
• The last option in our decision making
process will be the Professor/Lecturer.
Emergency Vehicle Early Warning System
•
Receiver
Power Source
Power Source
Alerts traffic to oncoming emergency vehicles.
Control unit on emergency vehicles turns on when siren and lights are active.
Receiver and heads-up display are automatic.
Increases time for motor vehicle get out of the way.
Decreases Emergency vehicles response time.
Major External Electrical and User Interfaces
–
–
–
•
Transmitter
Benefits
–
–
•
Heads-Up Display
Product Description
–
–
–
•
Control Unit
Heads-up Display
Power switches
Mute/Activate button
External Power Inputs and Outputs
–
–
Uses 12 VDC vehicle power
RF signal output/transmitter
Game Whistle Clock Synchronizer
•
Whistle/Sensor
Clock Control
Transmitter
Receiver
Power Source
Product Description
Power Source
– Synchronizes the referee whistle and the scorers clock
• When the whistle is blown to stop play the clock will automatically stop
• When the whistle is blown to start play the clock will automatically stop
•
Benefits
– Eliminates the human time delay
– Improves the integrity of the game.
•
Major External Electrical and User Interfaces
– Whistle
– On/Off switch
– Clock control on scorer’s table
•
External Power Inputs and Outputs
– Power source for whistle is 12VDC battery
– Power source for scorers station is 120VAC with set down transformers.
Electronic Fuel Tank Switching Unit
Fuel Level Sensor
Battery
•
This unit would alleviate some workload in the cockpit.
The device would also eliminate errors in forgetting to switch tanks preventing fuel starvation.
Major external electric & user interfaces
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–
•
This unit would switch between fuel tanks in a small general aviation aircraft based on a
timer input from the user. In the event that a tank gets too low for safe operation, the unit
would automatically switch tanks.
Benefits
–
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Tank Switching Unit
Product Description
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Digital Screen
The user interface would be a digital screen allowing the user to enter in the amount of time
that they wanted to burn off of each tank. Thirty minutes would be entered if the user wanted
to switch fuel tanks every half an hour.
The electronic unit would have a manual override.
External Power Inputs and Outputs
–
Power would be supplied by the 12-volt system that is standard to small aircraft
Battery Charging System for Toy Truck
Power Supply
Control
Inverter
Inductive Coils
• Product Description
– Toy truck battery charger
• Slow trickle charge through induction connection
• Benefits
– Rechargeable battery more cost effective
– Eliminates the need for additional connections to charge battery
• Major External Electrical and User Interfaces
– LEDs display the amount of time the battery has been on charge.
– Inductive coils used for wireless charging.
• External Power Inputs and Outputs
– Power source on toy is the vehicle power
– Induction loops pass the current to the toy vehicle for charging the batter
Project Selection
• Project was selected because funding exists and
completion is feasible. The scope of the project
can be adjusted with minimal difficulty. The size
of the project fits the team size and interests.
• The major risks are in dealing with batteries and
antennas.
• The other projects were rejected due to lack of
funding and inability to scope the project.
• The project was unanimously supported by the
team.
Proposed Product Summary
Battery Charging System for Toy
Truck
• This battery charging system will allow the user to trickle
charge without physical connections to the toy truck.
• Primary benefit is to charge without having to physically
connect to the charging system.
– Other benefits:
• Shows the length of time the battery has been on charge.
• Quick, easy to use
• Low maintenance
• Intended application is to charge the battery on the truck
for extended use.
• The truck becomes fully automatic without having to
connect up to the charging system.
• The induction charging system is an unique idea.
• Automotive/Entertainment/Promotional Industries
Vehicle Battery Charger
Power Supply
Inverter
Control w/LED
Display
Induction
Loops
Vehicle
Connection
Block Diagram Description
Block
#
1
2
3
4
Block Name
Power supply
Inverter
Control
Induction loops
Owner
Kassie
Josh
Eric
Mark
Brief Description
Of Block Function
Power
Interface
s
Digital
Interfaces
Analog
Interface
s
Converts residential 120VAC
power to required voltage needed
to power the charging circuit and
its components.
In: 120V AC
In: None
In: None
Out: 12 VDC
Out: None
Out: None
Converts the input of 12VDC from
the power supply to 12VAC at a
given frequency in order to put the
power through the coils.
In: 12VDC
In: 125Khz 5VDC
In: None
Out: 12 VAC
Out: None
Out: Variable
VAC control
signal
Regulates outgoing power to the
toy vehicle depending on mode of
operation and current battery
state.
In: 12 VDC
In: None
Out: None
Out: 5VDC,
125Khz 5VDC
In: Variable
AC control
signal
Out: None
Transfer power from stationary
unit to toy vehicle and rectify to
DC voltage without having a
physical wire connection.
In: 12 VAC
In: None
In: None
Out: 12 VDC
Out: None
Out: None
Requirements
System – Standard Requirements
• Market
– Material Cost:
– Manufacturing Cost:
$100
$50
• Power
– Energy Source:
• Voltage Range:
• Power:
AC
102VAC – 132VAC
1200W
• Mechanical
– Energy Source Connector:
NEMA 5-15
• Environmental
–
–
–
–
Min Oper Ambient Temp Range:
0 – 50C
Min Oper Ambient Humidity Range:
0 – 85%
Min Storage Ambient Temp Rang: -20 – 70C
Min Storage Ambient Humidity Range:
0 – 90%
Requirements
System – Standard Requirements Cont.
• Safety
– Must comply with Part 15 of the FCC Rules regarding
radio frequency devices
• Manufacturing
– Part count is undetermined
• Life Cycle
– Service Strategy
• Repair at factory
– Product disposal
• Return to manufacturer
Requirements
System – Performance Requirements
• User Inputs
– Input:
Push Button
• User Indicators & Displays
– Indicator 1:
– Indicator 1 type:
– Binary Indicator Technology:
Information
Binary
LEDs
• Operation Modes
– Power Modes:
– Function Modes:
On, Off, Standby
Charging
• Safety
– Power Signal Ground Fault Max:
– Power Signal GF Max Trip Time:
6 mAmps
16 msecs
Block 1 – Power Supply
Owner - Kassie
• Power Signals
– Input:
• AC
– Nominal Voltage: 120V , Range: 10.2V – 13.2V
– Nominal Frequency: 60Hz, Range: 57Hz – 63Hz
– Maximum Current: 10A
– Output:
• DC
– Nominal Voltage: 12V, Range: 11.60V – 12.60V
– V ripple: 0.2V
– Maximum Current: 20A
• Digital Signals
– N/A
• Analog Signals
– N/A
Block 2 – Inverter
Owner - Josh
•
•
•
Power Signals
– Input:
• DC
– Nominal Voltage: 12V , Range: 10.2V – 13.2V
– Maximum Current: 20A
– Output:
• AC
– Nominal Voltage: 24V, Range: 0V – 48V
– Maximum Current: 10A
– Nominal Frequency: 400 Hz, Range: 100-500Hz
Digital Signals
– Input
• Frequency Input
– Nominal Frequency: 400Hz, Range: 100-500Hz
– 5V Logic Voltage
Analog Signals
– Output
• Frequency Control
– Nominal Frequency: 60Hz, Range: 51-66Hz
– Voltage Max Amplitude: 14.5V
Block 3 – Control
Owner - Eric
•
Power Signals
– Input:
• DC
– Nominal Voltage: 12V , Range: 11.0V – 14.5V
– Nominal Frequency: N/A
– Maximum Current: 1A
•
Digital Signals
– Output:
• DC (frequency control)
– Nominal Voltage: 5V, Range 2.4V- 5.5V
– Nominal Frequency:400hz Pulse (control signal)
– Maximum Current: 1A
• DC (LED Display)
– Nominal Voltage:5V. Range 2.4V-5.5V
– Maximum Current 100mA
•
Analog Signals
– Input:
• DC
– Nominal Voltage: 12V , Range 11.0V – 14.5V
– Maximum current: 1.0A
Block 4 – Inductive Loops
Owner - Mark
• Power Signals
– Input:
• AC
– Nominal Voltage: 24V , Range: 0V – 48V
– Nominal Frequency: 400Hz, Range: 100Hz – 500Hz
– Maximum Current:10 A
– Output:
• DC
– Nominal Voltage: 13.8V, Range: 13.0V – 14.0V
– V ripple: .2V
– Maximum Current:30 A
Patents
• US PN 6,972,543
– Series resonant inductive charging circuit
– December 6, 2005
• US PN 5,694,023
– Control and termination of a battery charging process
– December 2, 1997
• US PN 6,940,257
– Battery charger
– September 6, 2005
Ethical or Societal Issues
• One issue that we have to address is to
prevent too much current from entering the
battery on the toy car during the charging
process.
• Another issue that we have to address is
to make sure there is sufficient shielding
around the coils.