Today, I took an other video on my Honda CBR125R, and tried to do some data overlay using RaceRender 3.5.5 Free. The data has been acquired using Fuelino Proto3, the open source fuel injection module and data logger for motorcycle.
The signals visualized in the video below are:
- Engine speed (rpm)
- Throttle Position Sensor signal (%)
- Injection cutoff status
- Injection time (us)
- Lambda Sensor raw voltage (V)
At the moment, Fuelino Proto3 is also able to log many other info such as:
- IMU (Inertial Measurement Unit) data: 3-axis acceleration, 3-axis gyroscope signals, using MPU-6050
- GPS: position (latitude, longitude, height), real time (date, time), time of the week, speed, using Ublox Neo 6M
I also added a feature which allows you to quickly acquire the lambda sensor signal (1ms sampling time, 32 samples) when some triggering conditions are satisfied, such as: engine speed and throttle in a specific range for more than 1 second. This will help a lot in finding out if the injection timing is properly tuned (i.e. the air-fuel ratio is close to the stoichiometric ideal ratio).
If you are interested about my project (the name is Fuelino), please contact me, or leave a comment below, and I can provide you more info about it. I still have some samples available that I can send you for free, if you want to test it on your motorcycle. For more details, please click here.