Steering Angle Sensor Guide
AiM Steering Angle Sensor Guide
This guide explains how the AiM Steering Angle Sensor works, what data it provides, and how to use steering analysis with MyChron 5 and MyChron 6. This information is tailored for kart racers in New Zealand and Australia.
What the steering angle sensor measures
The steering angle sensor measures how far the steering wheel is turned, showing:
- Steering input (left/right)
- Steering rate (how fast the driver turns)
- Cornering consistency
- Driver smoothness
- Kart balance and handling behaviour
Why steering data matters
Steering angle is one of the best indicators of kart handling. It helps identify:
- Understeer (pushing)
- Oversteer (loose rear)
- Driver over‑driving
- Chassis setup issues
- Line choice and consistency
Ideal steering behaviour
A good steering trace should show:
- Smooth initial turn‑in — no jerky movements
- Consistent mid‑corner angle — stable kart balance
- Clean unwind on exit — controlled release
- Repeatable patterns — consistent driving
How to read steering angle data
In AiM RaceStudio 3, steering angle appears as a left/right graph. Look for:
- Turn‑in point: where steering begins
- Maximum steering angle: mid‑corner load
- Steering rate: how quickly the driver turns
- Exit release: how smoothly the wheel unwinds
Common steering issues and symptoms
| Symptom | Likely Cause | Fix |
|---|---|---|
| Large steering angles | Understeer or poor line | Increase front grip or adjust driving |
| Fast, sharp inputs | Driver over‑driving | Coaching or smoother technique |
| Oscillating steering | Kart instability or oversteer | Increase rear grip |
| Slow steering response | Lazy turn‑in or soft front setup | Increase front grip or adjust caster |
Using steering data for driver coaching
Steering angle is extremely effective for coaching. Compare:
- Turn‑in timing
- Steering smoothness
- Corner entry consistency
- Exit release technique
Faster drivers typically use less steering angle and more consistent inputs.
Using steering data for kart setup
Steering angle reveals setup issues clearly:
- High steering angle: understeer → increase front grip
- Low steering angle but sliding: oversteer → increase rear grip
- Slow steering rate: kart lazy → adjust caster or front track
Maintenance tips
- Ensure sensor arm moves freely
- Check calibration in RaceStudio
- Inspect wiring for rubbing or heat damage
- Verify full left/right lock readings