Brake System Design and Optimization: Step 3 - Testing, Tuning & Verification
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Step 3 - Testing, Tuning & Verification
02.20
| 00:00 | - The final step with our new and/or improved brake system is to test it and verify our work is correct but there will always be room for some more analysis and tuning to dial it in. |
| 00:11 | Before testing though we need to make sure our pads are bedded in and of course bring our brakes and tyres up to temperature so we know the setup is working correctly. |
| 00:21 | When we're ready to begin, the best place to start is with the system adjusted all the way to maximise front bias. |
| 00:28 | Be that in the form of a bias bar and/or the proportioning valve. |
| 00:32 | Naturally we want to be testing in a safe area, ideally a straight part of the track with no traffic and we also want to start with lower speed and power stops, eventually working up in pace and pressure. |
| 00:46 | The bias can be gradually wound backwards until the rear wheels begin to lock or there is some instability under brakes. |
| 00:54 | At this point we can adjust the bias slightly forward again and stay on the side of stability. |
| 00:59 | Enlisting someone's help as a spotter can help with identifying which wheels are locking if it isn't clear to the driver or alternatively we can use data from wheel speed sensors if they're fitted. |
| 01:12 | Since we've designed our system around the bias bar in the central position, we should end up there or there abouts, assuming we're testing in good conditions. |
| 01:22 | If not then some further work might be needed to understand what the issues are and what's causing them. |
| 01:28 | Temperature and pressure sensor readings as well as calliper temperature stickers and disc paint can help paint a picture of the brakes operation and bias. |
| 01:38 | In extreme cases, position sensors can also be used on the master cylinders to help us understand compliance. |
| 01:45 | More importantly though is how all of this feels to the driver, whether that's us or not, as driver confidence and control will be the main factor that translates to performance. |
| 01:56 | The reality is that there will always be room for improvement and this along with many other areas of a race car, undergoes continuous development and requires tuning for different conditions. |
| 02:08 | Be sure to keep notes of your changes as this will help your overall understand and efficiency in optimising your braking performance in the future. |
