Quote:
Originally Posted by Vekke
It's pretty easy to go on and try it for yourself with electric car. Or with diesel or petrol car with that pedal stopper but it won't be so accurate with them. Pedal stopper and seconds is accurate I should try how it works with this ev. I have used that route with my 15mg injection limited program with success by measuring the time changes.
When you test in hilly course you will see more variation which is good. If you just test in flat ground you will lose your ass feeling of the car you can feel and see from readings it's doing better. Like it will hold same reading longer and before than with other configuration. When you do a lot of testing you can guess where an when it will change the reading numbers and how they should change normally. You can see also that with more changes in the car point of lowest numbers have changed to further in the course than when started the testing with the car.
The readings at flat will show the same during all test if changes are minimal (or that 0.1 better which is much more than the ev resolution of 0.1 from 15.9kWh average mpg display is more accurate use that if possible. On hilly route they change on measurement points. On my data the last 400m is uphill slope on first direction. Previous point is lowest in the course. In most cases the readings in final uphill change up 0.1 units for every 50 meters or so. When you reach the goal if last 2 points are both lower you can be pretty sure the configuration is better. If over half is lower more certain. If you change the parts on and off every second run it averages the wind and temp changes. On my route through the woods I have seen that even little 3-5m/s wind is not yet a big reliability issue.
Id3 speed varies +-1kmh on the route and that creates biggest variation to results. On fossil cars you see more speed variation if you use your cruise control which is not good as it will over accelerate to hills lot more.
|
I don't know if it's a language thing but I am sorry, I can't understand what you are saying. As far as I can see, nearly every point you make will result in less accuracy.
Certainly, your windows up/down results didn't match what I'd expect from the technical literature (ie the increase in drag that wind tunnel results show on a variety of cars).
As I have said, why not do multiple tests (say 5) with the car absolutely unchanged and see the spread of the results?