basco: hybid lawn mower
DESCRIPTION
BASCO: Hybid Lawn Mower. Erfan Ahmad Andrew Bauer Derek Forehand. Topics. Gantt Chart Testing Power Analysis. Gantt Chart. Testing. Tested the electric components for power draw and run time Used back calculation to calculate current draw on components. - PowerPoint PPT PresentationTRANSCRIPT
BASCO: Hybid Lawn MowerErfan AhmadAndrew BauerDerek Forehand
Topics1. Gantt Chart
2. Testing3. Power Analysis
Gantt Chart
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
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
Testing Facility
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.
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
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
Questions