Brake Pressure Sensor Guide
AiM Brake Pressure Sensor Guide
This guide explains how the AiM brake pressure sensor works, what data it provides, and how to use brake pressure analysis with MyChron 5 and MyChron 6. This information is tailored for kart racers in New Zealand and Australia.
What the brake pressure sensor measures
The brake pressure sensor measures hydraulic pressure inside the braking system. It shows exactly how hard and how consistently the driver applies the brakes.
Why brake pressure data matters
- Improves braking consistency
- Helps identify locking or over‑braking
- Shows braking technique differences between drivers
- Helps tune brake bias and pedal feel
- Reveals driver confidence and control
Ideal brake pressure behaviour
A good braking trace should show:
- Firm initial pressure — decisive braking
- Smooth release — controlled corner entry
- Consistent peak pressure — repeatable technique
- No spikes — avoiding lock‑ups
How to read brake pressure data
In AiM RaceStudio 3, brake pressure appears as a rising and falling curve. Look for:
- Sharp rise: initial brake application
- Peak pressure: maximum braking force
- Trail braking: gradual release into the corner
- Flat sections: holding pressure (usually not ideal)
Common braking issues and symptoms
| Symptom | Likely Cause | Fix |
|---|---|---|
| Spikes in pressure | Driver stabbing the brakes | Smoother pedal application |
| Slow pressure rise | Driver hesitant or soft pedal | Increase confidence or adjust pedal feel |
| Inconsistent peaks | Driver inconsistency | Practice braking markers |
| Pressure drop mid‑brake | Driver releasing too early | Improve trail braking technique |
Using brake pressure for driver coaching
Brake pressure is one of the best tools for coaching junior and senior drivers. Compare:
- Braking points
- Peak pressure
- Release timing
- Consistency lap‑to‑lap
Faster drivers typically brake later, harder, and more consistently.
Using brake pressure for kart setup
Brake pressure data can also help diagnose setup issues:
- Rear locking: too much rear brake or stiff rear setup
- Front locking: too much front brake or soft front setup
- Long pedal travel: air in system or worn pads
Maintenance tips
- Bleed brakes regularly
- Check for leaks around fittings
- Inspect sensor wiring for heat damage
- Ensure sensor is mounted securely