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—NWH:VehiclePhysics2:Powertrain:TransmissionComponent [2023/05/16 09:35] (current) – nwhcoding
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 +====== Transmission Component ======
 +
 +[{{ :NWH:VehiclePhysics2:Powertrain:pasted:20230408-234713.png|Transmission inspector. }}]
 +
 +----
 +
 +  * ''TransmissionComponent '' is a mandatory ''Powertrain'' component. It is always third in the ''Powertrain.Components'' list.\\
 +  * NWH Vehicle Physics uses gear ratios – just like the real transmission does. 
 +  * If gears are not set up properly the vehicle will not move. 
 +
 +== Input Flipping ==
 +The asset uses W/S to select the movement direction by default. To use W/S as throttle/brake exclusively go to //Control > Input// and tick ''Swap Input In Reverse''.
 +
 +==== Gearing ====
 +  * Gearing is assigned through the ''gears'' list and should be ordered from reverse, then neutral (always 0), then forward gear ratios. 
 +  * Gear ratios can be adjusted during run-time.
 +
 +==== Transmission Types ====
 +
 +{{ :NWH:VehiclePhysics2:Powertrain:pasted:20200314-160656.png }}
 +
 +=== Manual ===
 +  * In this type of transmission changing gears can only be done through user input. Check [[Setup:Input|Input Setup]] for more info on input bindings.
 +
 +== Automatic ==
 +  * Vehicle shifts gears based on the gear ratios and ''Upshift RPM'', ''Downshift RPM'', ''Variable Shift Intensity'' and ''Incline Effect Coeff'' variables.
 +  * Current ''Target Upshift RPM'' and ''Target Downshift RPM'' can be seen under the under the //Shifting// section of the ''TransmissionComponent'' inspector, during runtime. These values vary depending on the variables mentioned above.
 +  * ''IsSequential'' makes the transmission be able to shift only one gear up or down at the time. It has the same effect as ticking both ''Allow Upshift Gear Skipping'' and ''Allow Downshift Gear Skipping''.
 +
 +Vehicle under full throttle:\\
 +{{ :NWH:VehiclePhysics2:Powertrain:pasted:20200314-161555.png }}
 +\\ 
 +Same vehicle with 0 throttle:\\
 +{{ :NWH:VehiclePhysics2:Powertrain:pasted:20200314-161642.png }}
 +
 +=== CVT ===
 +  * ''CVT'' (and eCVT) transmissions have variable gearing ratio dependent on load.
 +  * One forward gear in //Forward Gears// list and one reverse gear in //Reverse Gears// list should be used. The value of the gear is the maximum gear ratio.
 +
 +
 +=== External ===
 +  * ''Shift'' delegate inside ''TransmissionComponent'' is used for changing gears.
 +  * This allows for external shifting logic.
 +  * If the delegate is not assigned this option will result in no gear shifts.
 +
 +==== Timing ====
 +To make shifting more realistic two timers have been added:
 +  * ''Shift Duration'' - time ''Transmission'' takes to change from one gear to another. During this time ''EngineComponent'''s throttle is cut off. Works for all transmission types.
 +  * ''Post Shift Ban'' timer. This field determines minimum time between two shifts. Used to prevent transmission for shifting too often. Only affects automatic transmission types.
 +
 +==== Shift Conditions ====
 +Transmission will only shift in automatic mode if all the ticked conditions conditions have been met for ''Shift Check Cooldown'' seconds:\\
 +  * ''Wheel Spin'' - longitudinal slip on all wheels is less than ''Longitudinal Slip Threshold''(//Settings tab//)
 +  * ''Wheel Skid''- lateral slip on all wheels is less than ''Lateral Slip Threshold''(//Settings tab//)
 +  * ''Wheel Air''- none of the wheels are in the air.
 +  * ''External Shifts Checks Valid''- list of ''ShiftCheck''delegates. All external shift checks must be valid for transmission to be able to shift.
 +State of the shift checks can be seen in the inspector:\\
 +{{ :NWH:VehiclePhysics2:Powertrain:pasted:20200314-175110.png }}
 +
 +==== Transmission Gearing Profile ====
 +Transmission gearing profiles were deprecated in favor of a simple ''gears'' list.
 +