Introducing Ultra Autonomous Braking!

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Whilst Son Goku has mastered Autonomous Ultra Instinct, our A.I Mini 4WD has gained a new ability too. We called it Ultra Autonomous Braking. It has always been a dream, and finally we have made this dream comes true.

Previously, the braking point was calculated (pre run) on our laptop based on input such as assumed parameters, data extracted from previous runs and our simulator etc. The braking point position is loaded to the car and the on-board computer follows the instruction consistently to brake exactly at the point prescribed. However due to the nature of Mini 4WD cars, the acceleration rate, top speed and deceleration rate can vary massively at run time compared to simulation. This can cause the car to brake too early or too late. We mitigated this issue by running the car multi-times, manually studying the data with our tools, utilising cruising and improving the braking point iteratively.

Mini 4WD AI car with pre-calculated brake point in a 2 lanes oval home circuit
Mini 4WD AI car with pre-calculated brake point in a 2 lanes oval home circuit

With Ultra Autonomous Braking, the braking point is calculated at run time by the car itself. This new ability enables our car to brake with extreme precision, taking run-time information, dynamically calculating the braking point and in the meantime learning/self-correcting. It can still brake precisely even when the motor had a surge of power or even when the battery starts to get weak. It is a major break through in our A.I tech.

Mini 4WD AI car with brake point calculated on the fly in a 2 lanes oval home circuit
Mini 4WD AI car with brake point calculated on the fly in a 2 lanes oval home circuit

In order to make this happen, one key component we had to improve further was the positioning system. Now it has the ability to correct measurement errors from sensors.

We tested the new ability briefly in our small 2 lanes oval track and the result is amazing. We are looking forward to testing it in a larger layout.

Will share more info in the near future. So watch this space.

#mini4wd, #ミニ四駆, #迷你四驅, #tamiya, #STEM, #ミニ四駆ai

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