A TPMS system automatic matching method and device

Abstract

The invention provides an automatic matching method and device of a TPMS (Tire Pressure Monitoring System). The method comprises a car speed detection step, a data processing step, an RF (radio frequency) transmitting step, an RF receiving step, a matching mode judging step, a transmitter locking step and an automatic matching step, wherein the automatic matching step comprises the following sub-steps: distinguishing transmitters which are arranged on a left wheel and a right wheel through transmitter ID (identification) or the value of a fixed byte in RF message data; collecting a power value or a frame loss rate value corresponding to the RF message data, and judging transmitters which are arranged on a front wheel and a rear wheel through the collected power value or the collected frame loss rate value; and automatically matching the transmitters with receivers on the corresponding wheel positions. According to the automatic matching method and device, no additional workstation is needed for an assembly line of a car factory, and the assembling step is not influenced; the transmitters and the receivers can be matched automatically without a special tool for the after sale; manual operation is not needed, the matching is completed in the traveling process, and the matching success rate of the TPMS is increased; the product cost and after-sale cost of the TPMS can be reduced.

Description

technical field [0001] The invention relates to the technical field of automatic matching of TPMS systems, in particular to a method and a device for automatically completing the matching of a front-mounted TPMS system of a passenger car during use by a user. Background technique [0002] Currently, the tire pressure monitoring system (Tyre Pressure Monitoring System, TPMS) pairing technology has the following types: [0003] 1) The TPMS receiver is in the pairing mode, inflate or deflate the tire or take other methods that can trigger the transmitter to send RF message data, the receiver receives and matches with the transmitter; [0004] 2) The TPMS receiver is in the pairing mode, and the low-frequency command is sent through the handheld instrument to trigger the transmitter to send RF message data, and the receiver receives and matches with the transmitter; [0005] 3) Two-way communication between the TPMS transmitter and the receiver, the receiver and the trigger are...

AI Technical Summary

Problems solved by technology

[0008] 1) The pairing process of the TPMS system is complicated to operate;

[0009] 2) The pairing process takes a long time;

[0010] 3) Auxiliary tools are required and the product cost is high;

[0011] 4) The operation process needs manual control, and the success rate of system pairing cannot be guaranteed

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