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## Summary:

- Slope Test to Flat Ground Test

Vehicle Mass : 3 tonnes

Manufacturer's instruction is to test vehicle's parking brake effectiveness is to engage parking brake on 30.96 degrees slope. If it holds, it is effective.

I do not have 30.96 degrees slope & I want to replicate the same test on flat ground. I was thinking of accelerating to a X rpm with my parking brake on.

Based on my free body diagram, the Parking Brake Force on 30.96 degrees slope is the same as the Acceleration Force on Flat Ground and is calculated to be 15140N. [Fg sin (30.96)]

But I can't correlate RPM and Force.. and I'm not sure what other variables are needed (Torque? HP?)

*Assuming no friction/resistance

Manufacturer's instruction is to test vehicle's parking brake effectiveness is to engage parking brake on 30.96 degrees slope. If it holds, it is effective.

I do not have 30.96 degrees slope & I want to replicate the same test on flat ground. I was thinking of accelerating to a X rpm with my parking brake on.

Based on my free body diagram, the Parking Brake Force on 30.96 degrees slope is the same as the Acceleration Force on Flat Ground and is calculated to be 15140N. [Fg sin (30.96)]

But I can't correlate RPM and Force.. and I'm not sure what other variables are needed (Torque? HP?)

*Assuming no friction/resistance