Tire pressure loss detection

A method of detecting a pressure loss event in at least a first vehicle tire, the method comprising:

• obtaining real-time tire pressure data from a plurality of tire-mounted sensors (TMS) each mounted in a respective one of a plurality of tires, the plurality of tires including the first tire and mounted on the same vehicle;
• calculating a pressure change rate over a fixed length time window for each of the plurality of tires on the vehicle:
• comparing the pressure change rate of the first tire to respective pressure change rates for one or more of the other tires in the plurality of tires on the vehicle;
• determining, from the comparison, whether the first tire has an anomalous pressure change rate indicative of a pressure loss event in the first tire.

A pressure loss event detection system comprising:

• a plurality of tire mounted sensors (TMS) for collecting real-time tire pressure data from a plurality of tires on a same vehicle;
• and
• a processor configured to:
• obtain the real-time tire pressure data from the plurality of tire-mounted sensors (TMS), including at least a first tire in the plurality of tires;
• calculate a pressure change rate over a fixed length time window for each of the plurality of tires;
• compare the pressure change rate of the first tire to respective pressure change rates of the other tires in the plurality of tires;
• and
• determine, from the comparison, whether the first tire has an anomalous pressure change rate which may be indicative of a pressure loss event in the first tire.