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API Referencevecontrollerpneumatics

Pneumatic Air Brakes

Controls air brake systems used on heavy trucks and trailers. Manages brake chamber pressure, relay valves, and the fail-safe spring brake mechanism that applies brakes when air pressure is lost.

Controls air brake systems used on heavy trucks and trailers. Manages brake chamber pressure, relay valves, and the fail-safe spring brake mechanism that applies brakes when air pressure is lost.


Hooks

HookDescription
init(jbeamData)Connects to the air tank, calculates actuator volumes, and sets up the custom wheel brake update logic.
updateFixedStep(dt)Simulates the flow of air into and out of brake chambers. Calculates resulting brake torque coefficients for both service and parking systems.
updateGFX(dt)Triggers pneumatic "hiss" sound effects based on rapid changes in brake chamber pressure.
module.reset()Resets the controller to its initial state.

See Also

  • Pneumatics — Parent pneumatic system
  • Low Air Pressure Warning — Low pressure alert
  • Sound - Air Brakes — Air brake sound effects

Pneumatic Actuators

Controls individual pneumatic actuators that convert air pressure into mechanical movement. Manages valve timing, pressure regulation, and position control for pneumatic cylinders and bladders.

Auto-Level Air Suspension

Self-leveling pneumatic suspension controller that maintains target ride height regardless of load. Monitors height sensors and adjusts air spring pressure to compensate for cargo weight and weight transfer.

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HooksSee Also