Torque vectoring actively varies how much power goes to each wheel to improve handling and traction. By sending more torque to the outside wheels in a corner or to the wheel with grip, it helps a car turn more sharply and stay stable.
Animated: how a Torque Vectoring actually works
🔧 How It Works, Step by Step
1
Sensors read the car's behavior
The system monitors steering angle, wheel speed, yaw, and throttle to understand what the driver wants and what the car is doing.
2
It decides the ideal torque split
A controller calculates how much torque each wheel should get for the best cornering and traction.
3
Clutches or brakes vary the torque
Electronically controlled clutches, or selective braking, direct more power to specific wheels.
4
The car turns and grips better
Sending extra torque to the outside or gripping wheels reduces understeer and improves stability.
🧩 The Key Parts
Control module
Calculates the ideal per-wheel torque distribution.
Clutch packs or coupling
Actively vary torque to individual wheels or axles.
Wheel speed and yaw sensors
Provide data about grip and vehicle motion.
Brake actuators
In brake-based systems, slow a spinning wheel to redirect torque.
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🩺 Signs of a Failing Torque Vectoring
Warning light for the torque vectoring or stability system
Reduced cornering grip or more understeer
Unusual noise from the differential or couplings
Uneven power delivery in corners
System defaulting to a basic drive mode
⚠️ Common Problems
Coupling or clutch wear
Worn active clutches reduce the system's ability to vary torque, dulling its handling benefit.
Sensor faults
Faulty wheel speed or yaw sensors feed bad data, causing the system to disable itself.
Fluid degradation
Old fluid in the active differential unit causes noise and reduced performance.
💰 Cost to Fix
$1,500-$4,000typical range to repair or replace, parts and labor
❓ FAQ
What is the benefit of torque vectoring?
It improves cornering by sending more power to the wheels that can use it, reducing understeer and making the car feel more agile and stable.
Is torque vectoring the same as a limited-slip differential?
No. A limited-slip reacts passively to slip, while torque vectoring actively and precisely directs torque based on sensors and driver input.
Can brake-based torque vectoring wear the brakes?
It uses light, brief brake applications that add minimal wear in normal driving, and the handling benefit generally outweighs the small extra use.
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