Hi Dave,
Quote:
Originally Posted by dcb
Thx Bob, can you add instrumentation to your conditions? i.e. was it toyota stock or sg or ?? Also can you note if you checked the state of charge before and after each test?
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The purpose of the 20 minute warm-up at speeds of 45 mph and higher is to normalize the charge and eliminate warm-up issues. I simply use the built-in display to handle the distance, mileage and total speed. The GPS is used to check the actual versus indicated speed. The +1 MPH error on the speedometer (the car reads higher than actual) remains but the trip meter speed is dead on accurate and agree with the GPS.
Future experiments: - rear wheel well covers (aka., Insight style)
- front air dam and side skirts
Duct tape and cardboard allows a lot of flexibility to run inexpensive experiments and get useful data. Once we have quantified the effects, one system test and then look at fabrication of a longer lasting, weather proof solution.
Bob Wilson
__________________
2019 Tesla Model 3 Std. Range Plus - 215 mi EV
2017 BMW i3-REx - 106 mi EV, 88 mi mid-grade
Retired engineer, Huntsville, AL
Last edited by bwilson4web; 01-25-2010 at 08:49 AM..
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