FIELD: transport.
SUBSTANCE: invention relates to automotive industry, particularly, to tire air pressure control. Device to determine tire air pressure comprises air pressure gage 10a, transmitter 10d, module 10b to determine operating conditions, air pressure variation gage 10c and frequency control assy 10c. Frequency control assy 10c allows adjustment of frequency of transmission of tire air pressure defined by foresaid module 10a by transmitter 10d in compliance with operating conditions defined by module 10b and with air pressure variation magnitude defined by module 10c. Frequency control assy 10c allows additionally the alternation of setting of threshold transmission frequency from low to high magnitude in compliance with operating conditions and air pressure change magnitude.
EFFECT: optimised frequency of transmission of data on tire conditions depending on operating conditions of vehicle and air pressure variation rate.
20 cl, 35 dwg
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