1. What is Wheel Torque?

Wheel torque is the rotational force applied to the wheels of a vehicle, calculated by multiplying the engine torque by the overall gear ratio. It represents the actual force available to propel the vehicle forward.

2. How Does the Calculator Work?

The calculator uses the wheel torque formula:

Where:

• \( Engine\ Torque \) — Torque produced by the engine (N·m)
• \( Overall\ Gear\ Ratio \) — Combined ratio of transmission and differential gears (unitless)

Explanation: The gear ratio amplifies the engine's torque output, resulting in higher torque at the wheels for better acceleration and towing capability.

3. Importance of Wheel Torque Calculation

Details: Wheel torque calculation is essential for understanding vehicle performance, acceleration capabilities, towing capacity, and overall drivetrain efficiency.

4. Using the Calculator

Tips: Enter engine torque in Newton-meters (N·m) and the overall gear ratio (unitless). Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between engine torque and wheel torque?
A: Engine torque is the rotational force produced by the engine itself, while wheel torque is the amplified force after gear reduction that actually moves the vehicle.

Q2: How does gear ratio affect wheel torque?
A: Higher gear ratios multiply engine torque more significantly, resulting in greater wheel torque but lower maximum wheel speed.

Q3: What is a typical gear ratio range?
A: Gear ratios typically range from 2:1 to 5:1 for final drive ratios, with transmission gears providing additional multiplication.

Q4: Why is wheel torque important for vehicle performance?
A: Wheel torque directly affects acceleration, hill-climbing ability, towing capacity, and overall vehicle responsiveness.

Q5: Does wheel torque affect fuel efficiency?
A: Yes, higher gear ratios that increase wheel torque typically result in higher engine RPM at a given speed, which can reduce fuel efficiency.