Multipurpose Automatic Gearbox
This automatic gearbox will handle any gear switching needs your creations require.
Its working principle is very simple and only requires a single torque sensor to function.
Gear selection is purely based on output rps which allows for very quick adjustment to changes in load, which make it ideal for any purpose from cars to boats.
Features:
* Support for modular engine gearboxes
* Support for up to 8 forward gears, one reverse and neutral (base gearing + 7 forward gear boxes + reverse gearbox)
* Configurable amount of actually used gears. You dont need to use all 8
* No fuss setup (No assumptions about use-case or gear ratios are made)
* Realistic clutch and throttle use makes the your creation actually behave like gears are being switched and does not rev the engine like crazy between shifts
* Paddle shift
* Manual mode
Setup:
Build whatever you like the only requirements are:
* (Optional) Clutch in front of gearboxes
* Some amount of gearboxes
* Torque Sensor after gearboxes
See pictures for example
Connections:
* W/S(Number) from throttle lever or seat
* Controls In(Composite) for compact connection of paddle shift and manual mode selection
* Current Gear(Number) the current gear for display purposes
* Throttle Out(Number) to engine or ecu
* Clutch Out(Number) to clutch in front of gearboxes
* Wheel Speed(Number) the rps from the torque sensor after the gearboxes
* Gearbox 1-7(Bool) to gearbox
* Reverse Gearbox(Bool) to reverse gearbox
Configuration:
In order to ensure smooth operation you need to configure the gearbox for your creation:
* Select the up and down shift point (RPS) based on your engine characteristics. Select at least 2 RPS below your engines RPS limiter and above its idle RPS
* Select the amount of gears you are actually using. This is the amount of your gearboxes + 1
* Select your base gearing, if you have a gearing that is on by default. Its calculated as output_rps / input_rps
* Select the gearing per used gearbox. These are based on gearboxes facing away from the engine. Inverted ratios are for gearboxes facing towards the engine. Generally these describe the relationship of input rps to output rps
* If you want to use the composite controls select their channels
Customization:
If you need a more compact form you can delete any unused gearbox output to save some space
If you need a more flexible gear range selection than offered by the dropdown you can replace the individual properties with property numbers and set their value to the result of input_rps / output_rps of that gearing (2:3 = 2 / 3 = 1.5) .
If you have any questions or suggestions feel free to leave a comment
Feel free share creations using this or forks of this to the workshop, but please give credit if doing so