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Unread 17-12-2013, 18:04
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Ether Ether is offline
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Re: Team 610 pre-season drivetrain

Quote:
Originally Posted by cadandcookies View Post
I'd focus on time to go a given distance: a very nice calculator for this can be found here.
That calculator was written by Andrew Schreiber1, and was based on an early version (now superseded) of the Drivetrain Acceleration Model2.

The model was updated a few days later to correct a small error and include the effects of reduced motor voltage caused by circuit resistance3. Andrew's calculator has not yet been updated to reflect the updated model.

Full C source code2 is provided for the Model. All you need is a C compiler and you can change the parameters, compile, and run it. Compiling and running takes less than 2 seconds. The output is a CSV file which will open directly in Excel if you set file associations. Columns in the CSV file include time, distance, speed, acceleration, motor current, and motor voltage.

1 See post#13 in this thread http://www.chiefdelphi.com/forums/sh...d.php?t=119442

2 http://www.chiefdelphi.com/media/papers/2868

3 See post#23 in this thread: http://www.chiefdelphi.com/forums/sh...d.php?t=119442