Project Objectives
High Priority Objectives
Functioning dynamometer that measures engine output parameters reliable integrated engine support systems (electrical, fuel, cooling, throttle, shifting)
Performs a sweep of motor RPM from 3k-16k RPM
Accuracy +/- 0.5 Hp
Repeatability +/- 0.1 Hp
Self-contained (closed system)
Sustained load (Hold RPM/load) - 50% duty cycle for 1 minute
Other Constraints and Issues
Noise, Heat and exhaust gasses
WOW Design Solution
Integration of additional sensors
Data post processing (graphs, visual data logs of auxiliary sensors)
Automatic fuel map tuning using an oxygen sensor to measure A/F ratios
Modular design to accommodate any size engine
Engine Mounting, fuel and cooling connections
Automated test cycles (Peak power, Fuel Map, Durability, etc)
Risk Reduction Strategy
Driveline frequency analysis
Water Brake Testing
Driveline completion, alignment and system calibration
Engine functionality (fuel, cooling, electrical)
Functional software with sensor implementation and verification
Intermediate Milestones
Full Mechanical Assembly and packaging verification
Engine on stand
Coupler manufactured
Driveline aligned
Support systems mounted
Fire Engine only at idle
Requires all support systems be complete
Water Break Functionality
Run at speed under load under manual control
Basic Software Functionality
Bench tested sensors with frequency generators
Low speed tests performed for initial verification
First measured Power figure
Sensors and software running and logging data for a power measurement
Equipment calibrated
Software development
Temperature shutdowns and warnings in place
A fully featured interface that displays all measured data
Automated Brake control
Electronically controlled valve selected and installed
Appropriate software control system to take accurate measurements
Automated Test Control and Test cycles
Throttle control added
Test cycles programed and debugged
Additional sensors added (O2, etc)