Patent ID: 9057662
Filing Date: 2015-06-16
Classification: B60C,G01M

Abstract:
1. A method for operating a tire pressure monitoring unit for monitoring pneumatic tires of a vehicle, comprising: providing a pressure sensor, an acceleration sensor and a transmitter connected to a control unit; automatically taking a pressure measurement at regular intervals using the pressure sensor; automatically transmitting wirelessly the pressure measurement at larger intervals as compared to the regular intervals by the transmitter; automatically checking by the control unit whether a pressure change exceeding a first or a second threshold value has occurred, and, if so, taking and transmitting pressure measurements at shortened intervals as compared to the regular intervals; automatically utilizing by the control unit the first threshold value for the pressure change in the case of a stationary vehicle and automatically utilizing by the control unit the second threshold value for pressure change in the case of a moving vehicle, wherein the first threshold value differs from the second threshold value; and automatically establishing by the control unit, by evaluating a signal of the acceleration sensor, whether the first threshold value or the second threshold value is used.