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BASCO: Hybid Lawn Mower. Erfan Ahmad Andrew Bauer Derek Forehand. Design Discussion. Design Goals Design Possibilities Pros/Cons. Gantt. Design Goals. Long Battery Life Speed Control Cut Quality. Design Goals (cont’d). Battery Life Improves Marketability Improves Buyer Range

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Basco hybid lawn mower

BASCO: Hybid Lawn Mower

Erfan Ahmad

Andrew Bauer

Derek Forehand


Design discussion
Design Discussion

  • Design Goals

  • Design Possibilities

  • Pros/Cons



Design goals
Design Goals

  • Long Battery Life

  • Speed Control

  • Cut Quality


Design goals cont d
Design Goals (cont’d)

  • Battery Life

    • Improves Marketability

    • Improves Buyer Range

  • Speed Control

    • Improves Mowing Times

    • Measure of Power Transmission

  • Cut Quality

    • Ultimate Selling Point

    • Measure of Power Transmission


Design possibilities
Design Possibilities

Gas vs Electric Engines

  • Gas Driven/Electric Blades

  • Electric Driven/Gas Blades

  • Gas Generator/Electric Engine/Electric Blade


Design 1 gas driven electric blades
Design 1: Gas Driven/ Electric Blades

  • Gas motor drives the wheels.

  • Electric blade spindle motors.

Pros

  • Eliminate Deck Belt

  • Drivable after Battery Life

  • Larger Decks

Cons

  • Can’t use blades to recharge

  • Load on blades is variable


Design 2 electric driven gas blades
Design 2: Electric Driven/Gas Blades

  • Electric motor drives the wheels.

  • Typical deck design off gas engine.

Pros

  • High efficiency gas engine

  • Power generation

  • Better run-time

Cons

  • Deck belt

  • Dead battery = Dead in the water

  • Cost


Design 3 gas generator electric motors
Design 3: Gas Generator/Electric Motors

  • Gas motor drives a generator.

  • Electric blade spindle motors and drive motor.

Pros

  • Less Maintenance

  • Efficient gas engine

  • Smaller gas engine than typical mower

Cons

  • More expensive

  • Battery Weight

  • Initial Battery Life


Factors conclusions
Factors/Conclusions

  • Other Factors

    • Total System Weight

    • Component Costs

    • Run Time

  • Final Thoughts

    • Gas Driven

    • Electric Driven

    • Generator