Understanding Dynamic Cornering Force Reduction with Grip Protection

Dynamic Cornering Force Reduction: Physics-Driven Steering Relief

Dynamic Cornering Force Reduction is designed to lighten your steering wheel during turns, reducing arm fatigue by scaling back the self-aligning torque (SAT)—the natural resistance you feel as tires grip the road. 

Unlike traditional firmware-based effects that use low or high-pass filters to blindly smooth or cap forces, this approach leverages real-time vehicle physics—lateral G-force, yaw rate and more—to adapt the reduction precisely to your car’s behavior. The result is a steering feel that stays true to the car's dynamics, easing effort without masking critical feedback like grip loss or recovery.

How It Works: Vehicle Physics at the Core

The effect monitors your car’s cornering force (lateral G) to calculate how much torque to reduce, growing smoothly as G-force rises—say, cutting 10-20% of the wheel’s torque in a 1.5G turn. It also tracks yaw rate (how fast the car rotates) to detect oversteer or understeer. When yaw spikes, signaling a slide, the reduction fades—ensuring SAT drops naturally as grip fades, not artificially from the effect. This effect’s physics tie-in keeps feedback sharp and proportional, adjusting to your car’s grip limits via cloud-tuned settings.

Why Physics Beats Filters

• Real-Time Adaptation: Uses lateral G and yaw rate to match reduction to cornering load and grip state—firmware filters lack this context, applying fixed cuts regardless of the car or situation.
  
  
• Preserves Feedback: Backs off during slips (e.g., oversteer), letting SAT reflect tire behavior—filters can over-dampen or lag, muting oversteer and understeer.
  
  
• Car-Specific Tuning: Cloud settings scale with your vehicle’s peak lateral G (e.g., more help for a 1.2G truck, less for a 4.5G F1 car)—firmware can’t tailor to grip differences.
  
  

Using the Controls

• Cornering Sensitivity: Sets how much torque reduces per G (0-25%). Higher values (e.g., 12% for trucks) ease low-G cars; lower (e.g., 3% for F1) suit high-G racers. Cloud tuning sets this from peak G data.
  
  
• Max Lightening: Caps reduction (0-75%). A truck might get 32%, an F1 car 65%, balancing fatigue relief with feel—automatically adjusted for your car.
  
  
• Smoothness: Adjusts response speed (1-10%). Slower (2-3%) for steady trucks, faster (4%) for twitchy F1 cars—cloud-tuned to match dynamics.
  
  
• Current Reduction: Shows live offset (e.g., -10 units). Watch it drop in slides, proving it won’t hide grip changes. You can view this effect in action in your Visual Lap Analyzer which shows exactly how your AccuForce Xtreme responds to vehicle telemetry moment by moment on a visual track map.
  
  

Getting Started

Load your car, and cloud tuning sets Sensitivity, Max Lightening, and Smoothness based on the car you're in—no manual tweaking needed unless you prefer!

Why This Approach Wins

• Physics-Driven: Ties reduction to Lateral G, Yaw Velocity and other vehicle physics, not arbitrary filter cutoffs—matches real car behavior.
  
  
• Dynamic Grip: Grip Factor ensures self-aligning torque (SAT) shines through during oversteer/understeer—filters lack this nuance.
  
  

End Result

Your AccuForce Xtreme provides all the benefits of a high torque direct drive wheel for bumps, curbs, oversteer, understeer, etc.. but WITHOUT the fatigue and without compromise.