Miscellaneous

How do you calculate the maximum torque of a car?

How do you calculate the maximum torque of a car?

The formula for figuring out torque is torque = horsepower of the engine x 5252, which is then divided by the RPMs. The problem with torque, however, is that it is measured in two different places: directly from the engine and to the drive wheels.

How do you calculate power and torque?

  1. Torque (lb.in) = 63,025 x Power (HP) / Speed (RPM)
  2. Power (HP) = Torque (lb.in) x Speed (RPM) / 63,025.
  3. Torque (N.m) = 9.5488 x Power (kW) / Speed (RPM)
  4. Power (kW) = Torque (N.m) x Speed (RPM) / 9.5488.

How do you calculate torque on a car?

To calculate load torque, multiply the force (F) by the distance away from the rotational axis, which is the radius of the pulley (r). If the mass of the load (blue box) is 20 Newtons, and the radius of the pulley is 5 cm away, then the required torque for the application is 20 N x 0.05 m = 1 Nm.

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How do you calculate torque from motor torque?

For a given gearbox, with multiple gears (gear ratios), we can calculate the wheel torque and force for each gear. Let’s calculate the wheel torque and force for a vehicle with the following parameters: engine torque, Te = 150 Nm. wheel radius, rw = 0.33965 m….How to calculate wheel torque from engine torque.

Gear # Gear ratio symbol Gear ratio
Final drive i0 3.460

What is torque in a car?

Applied to internal combustion engines or electric motors, torque indicates the force to which the drive shaft is subjected. Torque is expressed in pound-feet (lb-ft) or newton-meters (Nm). The interaction of torque and engine speed (rpm) determines the engine power.

How do you calculate maximum torque of a motor?

Calculate torque (T) using the formula T = 5,252 x horsepower/rpm. The results are measured in pound-feet. For example, if you have a 40-horsepower motor designed to operate at a peak of 1,200 rpm, the formula would be T = (5,252 x 40)/1200 = 175.07 lb. -feet.

How is car power calculated?

You will be using the formula (RPM * T) / 5252=HP, where RPM is the engine speed, T is the torque, and 5,252 is radians per second. The first calculation you want to do is multiply the torque and the engine speed. For example, a Porsche generates 480 of torque at 2,500RPM.

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What is RPM for max torque?

RPM for max torque is shown as line A and redline in shown by line B in the diagram above. Each vertical line counts as 1,000 RPM. So in this example max torque occurs around 4,500 RPM and redline occurs at 8,100 RPM. A value within 200 RPM is usually precise enough to get great results.

What is Max torque Nm rpm?

Usually, the engine specification mentions the maximum torque produced by an engine, and the RPM at which it is produced. e.g, “20 Nm at 8000 rpm” means that the engine produces a maximum of 20 Nm of torque, and it produces this torque at 8000 rpm.

What is an easy way to calculate torque?

Method 1 of 3: Finding Torque for Perpendicular Forces Find the length of the moment arm. The distance from the axis or rotational point to the point where force is applied is called the moment arm. Work out the force being applied perpendicular to the moment arm. The force applied perpendicular to the moment arm produces the greatest torque. Multiply the force times the distance to find the torque.

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What is the formula for calculating torque?

Torque can be calculated by taking the cross product of two variables. The formula is τ = rF sin θ. The moment arm is denoted as r and defined as the distance from the pivoting point to where the force is acting. The force acting on the moment arm is denoted as F..

How do we calculate torque?

Torque Calculation. A practical way to calculate the magnitude of the torque is to first determine the lever arm and then multiply it times the applied force. The lever arm is the perpendicular distance from the axis of rotation to the line of action of the force.

How to calculate the amount of torque needed?

Method 2 of 3: Figuring out the Torque for Angled Forces Start with the distance of the radial vector. The radial vector is the line that extends from the axis or point of rotation. Work out the amount of force being applied. In most torque problems, this value will also be given to you. Measure the angle made by the force vector and the radial vector. Use your calculator to find the sine of the angle θ.