Engine information

One of the perks of having a modern vehicle is that you can use devices to monitor the engine and drive train performance.  I was recently using my Vgate Bluetooth Scan Tool OBD2 Scanner to record speed and engine RPM values during a short trip.  In the following plot, you can clearly see the six gears of the automatic transmission as straight lines in speed vs RPM.

speed versus RPM

The color coding shows the absolute throttle position, which shows 2nd and 3rd gear most used during high acceleration.


This entry was posted in Cars, Data. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s