calculate_first_gear_box_ratio

calculate_first_gear_box_ratio(f0, r_dynamic, engine_max_torque, maximum_vehicle_laden_mass, final_drive_ratios)

Calculates the gear box ratio of the first gear.

Parameters:

• f0 (float) – Rolling resistance force [N] when angle_slope == 0.
• r_dynamic (float) – Dynamic radius of the wheels [m].
• engine_max_torque (float) – Engine Max Torque [N*m].
• maximum_vehicle_laden_mass (float) – Technically permissible maximum laden mass [kg].
• final_drive_ratios (dict[int, float | int]) – Final drive ratios [-].

Returns:

Gear box ratio of the first gear [-].

Returns:

float