Design Review AgendaProject BackgroundSummaryConstraints/Needs/SpecificationsFunctional AnalysisFunctional DecompositionHouse of QualityConcept Development & SelectionPugh SquareSystems Architecture
ConstraintsHarvest the energy from the momentum of the moving bicycle.
The unit price should be affordable; the primary target is for developing countries.
The design shall be ergonomic
The product should be weather/water resistant.
It is preferable to manufacture and assemble components in-house from raw materials where feasible.
Project success will be based on how fast the technology could be reproduced or re-manufactured by individuals with low levels of training or exposure.
Budget Estimate: Major cost items anticipated.Product Benchmarking$150Prototype construction$350Testing$100TOTAL$6005Customer NeedsObjective: Power simple personal devices using energy stored in the momentum of a bicycleImportance WeightNeed #Customer Needslow = 1, moderate = 3, high = 9Need 1The device provides power to charge a cell phone or a rechargeable battery to power LED lighting10Need 2The device attaches to a wide variety of bicycle types6Need 3The device adds only a minimal increase in effort for the operator pedaling the bicycle, ideally none at all4Need 4The device uses standard connectors to personal electronic devices 8Need 5The device is light weight4Need 6The device is inexpensive to purchase, install and maintain7Need 7The device is easy to install5Need 8The device is easy to operate6Need 9The device is easy to maintain6Need 10The device resists environmental damage from dust, water, etc.8( Need 11The device works well on rough roads8Need 12The device protects user safety8Need 13The device is a stylish accessory to the bicycle3SpecificationsSpecificationsUnitsIdealMarginalOutput voltageVDCPower outputW>5>2Energy Conversion Efficiency%Maximum charging rate range (depends on battery)J/sEstimated biking time to generate power 1 W-hr (if the device does not generate continuously)hrs