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Modding since 2024

API Referencevepowertrain

Automatic Gearbox

Torque-converter based automatic transmission with planetary gear sets. Simulates gear selection logic, shift scheduling, and torque multiplication for traditional automatic transmissions.

Torque-converter based automatic transmission with planetary gear sets. Simulates gear selection logic, shift scheduling, and torque multiplication for traditional automatic transmissions. Typically paired with a Torque Converter device upstream.


Inherited Methods

This device inherits all methods and properties from the Powertrain Base Device.

Public API

VariableTypeDescription
outputPortstableMap of active power output ports for downstream devices.
deviceCategoriestableCategories identifying this as a gearbox type device.
requiredExternalInertiaOutputstableOutput ports requiring external inertia calculation from downstream devices.

Usage Example

-- Access the automatic gearbox device
local gearbox = powertrain.getDevice("gearbox")

-- Check current gear
local gear = gearbox.gearIndex

-- Force a specific gear (if supported by shift logic)
gearbox:setGearIndex(3)

See Also

  • Torque Converter — Fluid coupling typically paired with automatics
  • DCT Gearbox — Dual-clutch alternative
  • Manual Gearbox — Manual transmission
  • Powertrain Base Device — Inherited base methods

JBeam Stage 2 Loader

Module defined in `lua/vehicle/jbeam/stage2.lua`. This is the primary interface for committing JBeam data to the C++ physics engine. In the vehicle VM, this module is exposed via the global `v`.

Centrifugal Clutch

Clutch that engages automatically based on rotational speed using centrifugal force. Commonly used in go-karts, mopeds, and small utility vehicles.

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Inherited MethodsPublic APIUsage ExampleSee Also