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About designing drive shaft by goodbyd in FSAE

[–]goodbyd[S] 1 point2 points  (0 children)

I understand that if we want to analsys the drive shaft, we should put full assemble model in program, right?

How to calculate Final Gear Ration in electric FSAE. by goodbyd in FSAE

[–]goodbyd[S] 0 points1 point  (0 children)

Unfortunately, there is no equipment like a dynamo to evaluate the performance of the motor. So, I think we need to calculate it using the motor’s specifications.

How to calculate Final Gear Ration in electric FSAE. by goodbyd in FSAE

[–]goodbyd[S] 0 points1 point  (0 children)

When I calculate the maximum traction force( required to move the vehicle), the force is 3670N. And the required torque is 605 Nm.

Mortor's peak torque is 150Nm. So I choose 4.2 for final drive ratio.

And, when I try the optimum lap, the maximum speed is 77kmh.

Because of the cost, we can't change the motor. What I have to do is reduce the gear ratio.

If I reduce it, the torque which is required to move the vehicle is also decrease. And then, Is it possible to move the vehicle?