Electric Ninja

I'm going to write a quick post how to use my electric vehicle performance calculator accessible in the downloads section (64 bit windows only at the moment). After a year or so of putting off getting this program completed, one of my parent's friends was kind enough to let me use his own personal Matlab compiler to turn it into an executable.  

1) To start a simulation, press run. This interface will be used every time a simulation finishes to start a new one. However, the previous values for both the torque curve and vehicle parameters will be set as defaults.

2) Enter vehicle parameters. The first gear ratio is the drive ratio between the motor and wheels.

3) Select whether or not you have a second gear shift.

4) Select shifting parameters. Your first gear will not effect top speed calculations if you select this option.

5) Select the data source for the torque (ft-lbs) vs RPM plot. Either enter a new one or load a premade plot.

6) If you choose to enter a new plot, you can only left click to enter new points at the moment and not right click to delte them like the tip says. This is definitely not intended and will be remedied in the 32 bit version. What the program does here is it creates a polynomial with an order one less than the number of points entered. Place points at the edge of the plot and place points close together at any sharp angles for the best fit.

7) If you choose to use a premade plot, you can browse your computer for a txt file with the torque vs RPM data. The next time the program is run there will be an option use the previously used data. If edit or add points is selected, you can now right click to delete unwanted points and left click to create new ones.

8 ) Press enter to see the results!

Top speed:

0 to ? mph:

Quarter mile times: