The concept

The system does not measure the actual inflation pressure in the tires.

It detects a pressure loss in a tire by comparing the rotational speeds of the individual wheels while moving.

In the event of a pressure loss, the diameter and therefore the rotational speed of the corresponding wheel change. This is detected and reported as a flat tire.

    See also:

    Manual transmission
    Starting the engine 1. Depress the brake pedal. 2. Press on the clutch and shift to neutral. 3. Press the Start/Stop button. The ignition is activated automatically for a certain time and is sto ...

    Functional requirements
    The system must have been initialized when the tire inflation pressure was correct; otherwise, reliable signaling of a flat tire is not ensured. Initialize the system after each correction of th ...

    The concept
    The vehicle alarm system responds to: Opening of a door, the hood or the trunk lid. Movements in the vehicle: interior motion sensor. Changes in the vehicle tilt, e.g., during attempts t ...