BASCO: Hybid Lawn Mower
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Transcript of BASCO: Hybid Lawn Mower
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BASCO: Hybid Lawn MowerErfan AhmadAndrew BauerDerek Forehand
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Topics1. Gantt Chart
2. Testing3. Power Analysis
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Gantt Chart
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Testing• Tested the electric
components for power draw and run time
• Used back calculation to calculate current draw on components.
• Discussed potential trade-offs between performance and run-time
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Testing Conditions• Wet thick grass to find a
maximum cutting load• “Low load blade”
minimum load• “High load blade”
maximum load• “On road” minimum
trans axel load• “Off road” maximum
transaxle load
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Testing Facility
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Power Analysis• Battery discharge time may be estimated via:• Ex. A 150 A-hr battery with a
current load of 35 amps would have a projected run-time of 4 hours and 17 minutes.
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Power AnalysisPower Analysis
• Determine average current draw of components (back calculation)
• Plug into the equation• Project run-time of the machine
on just battery power
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Power AnalysisPower Analysis
• Battery charge time calculators are available as online tools.
• Online Calculator• Useful for determining run-time
on fuel for an average day• Cost analysis
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Questions