工程 economics

Overview

Engineering reference data for Engineering Economics in automotive transport.

Key Formulas

Braking Distance

$d = \frac{v^2}{2\mu g}$

Distance to stop from velocity v.

Fuel Consumption

$FC = \frac{\text{distance}}{\text{fuel volume}}$

Distance per unit fuel.

Horsepower

$HP = \frac{\tau \cdot n}{5252}$

Torque × RPM / 5252.

Drag Force

$F_d = \frac{1}{2} \rho v^2 C_d A$

Aerodynamic drag on vehicle.

Variables

References

• Original Source