Trail Braking and Audio

🏎️ Trail Braking & Audio Slip Cues

🌐 Language / Язык: English | Русский

Two of the most innovative driving assists in vWheel Hub Pro are Synthetic Trail Braking (automated progressive brake release on corner turn-in) and Audio Slip Feedback (auditory force feedback for mouse drivers).

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🛑 Synthetic Trail Braking

What is Trail Braking?

In real-world motorsport, Trail Braking is an essential cornering technique where a driver applies maximum straight-line braking, but as they steer into the apex, they progressively bleed off brake pressure. This keeps weight transferred onto the front tires to generate steering grip and rotate the car without exceeding the friction circle of the contact patch.

flowchart TD
    A[Hard Straight-Line Braking: 100%] --> B[Turn Mouse into Corner Apex]
    B --> C[Compute Steering Angle % vs Max Lock]
    C --> D[Synthetic TB Engine Calculates Allowable Brake Ceiling]
    D --> E[Progressively Bleeds Off Brake: 100% ➔ 40% ➔ 20% ➔ 0%]
    E --> F[Maximum Apex Rotation Without Front Wheel Lockup]

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Trail Braking Parameters:

Parameter	Default	Function & Mechanics
Enable Trail Braking	false	Toggles synthetic trail braking. (Note: Mutually exclusive with Telemetry ABS Helper).
TB Intensity	1.00	Controls how aggressively allowable brake pressure drops as steering lock angle increases.
TB Min Limit	0.20 (20%)	The minimum brake pressure floor allowed at full steering lock (e.g. 0.20 = allows at least 20% trail pressure at maximum steering lock).
TB Decay Seconds	0.080 s	Time in seconds for excess brake pressure to bleed off smoothly as you turn into the corner.

Note

Turbo Brake Override: If you need to perform an emergency stop while turning, pressing both primary and secondary brake keys simultaneously activates Turbo Brake, which overrides all trail braking clamps to deliver immediate 100% brake force.

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🔊 Audio Slip Feedback (Auditory Force Feedback)

When racing on a high-end Direct Drive wheel, drivers feel tire scrub and slides through motor torque resistance and steering shaft vibrations. When driving on a mouse, there is no physical Force Feedback (FFB) motor.

Audio Slip Feedback solves this sensory gap by providing instant, non-intrusive auditory cues whenever your tires exceed their optimal grip threshold:

graph TD
    A[Live Telemetry: Tire Angular Speeds & Ground Velocity] --> B{Calculate Slip Ratios}
    B -->|Front Tires Scrubbing / Understeer| C["Understeer Tone: 650 Hz (High Beep)"]
    B -->|Rear Tires Sliding / Oversteer| D["Oversteer Tone: 280 Hz (Low Beep)"]
    B -->|Driven Tires Spinning / Traction Loss| E["TC Audio Tone: 500 Hz (Mid Beep)"]

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Slip Audio Parameters:

Cue Type	Default Frequency	Default Duration	Sensory Meaning & Driver Action
Understeer Tone	650 Hz (High)	80 ms	Front tires are scrubbing and losing lateral bite. Action: Unwind steering angle slightly to restore front grip.
Oversteer Tone	280 Hz (Low)	100 ms	Rear tires have broken traction and the rear end is stepping out. Action: Apply quick countersteer or ease throttle.
TC Audio Tone	500 Hz (Mid)	60 ms	Driven wheels are spinning under power. Action: Modulate throttle or rely on Smart TC.
Slip Audio Min Speed	15.0 km/h	—	Speed threshold below which sound cues are muted (prevents beeping in pit lanes or standing starts).

Tip

Customizing Audio Cues: On the Slip Audio page in vWheel Hub, click the "Test Tone" button next to each frequency slider to preview the tone and customize frequencies and durations to your headset preferences!

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⏭️ Next Steps

• 📡 Explore Telemetry ABS & Smart Traction Control
• 🎮 Fine-Tune Steering Sensitivity & Dynamic Clamping
• ⚡ Configure Schema V2 Pedal Dynamics