TPMS Sensor Description and Operation

Description

1. Mode
   1. Configuration States
      • All sensors must be in the Low Line state.
      • In the High Line configuration, sensor data is transmitted every minute (nominal), and pressure is measured every 4 seconds.
   2. Normal automatic state with delay
      • This is specific to High Line and is used for all HMC/KMC High Line applications.
      • In this state, the sensor will transmit for approx. 12 minutes before automatically switching to the storage state.
   3. Automatic storage state
      • This state is a low quiescent current state.
      • In this state:

      a. The ignition is off. b. The sensor does not measure pressure/temperature/battery level. b. The sensor will not transmit unless required by an initialization command.

   4. Alert state
      • The sensor automatically enters this state if the measured temperature exceeds 110 °C and a shutdown due to overheating is likely.
      • In this state, pressure is measured every 4 seconds, and RF data is transmitted every 4 seconds.
      • This state lasts 1 minute if triggered by pressure.
   5. KDS state
      • MP: Parking mode: no movement for 15 minutes.
      • MFB: First block mode: transition from parking to MFB when the sensor sees more than 4G. Remains in MFB for approx. 10 min.
      • MD: Driving mode: in MFB mode, movement at 4G for 10 minutes switches to driving mode.