TPMS automatic calibration device and method

Abstract

The invention relates to a TPMS automatic calibration device and method. The device comprises a calibration door, a plurality of pairs of low-frequency activation modules, a control host PCBA and a control host operation panel, and a calibration channel is formed in the middle of the inner frame body of the calibration door; the plurality of pairs of low-frequency activation modules are embedded into the mounting hole sites of the inner frame body; activation signals of all the low-frequency activation modules are superposed together so that the whole calibration channel can be covered; the control host operation panel is embedded into a mounting groove formed in the outer side wall of the outer frame body; the control host PCBA is fixedly installed on the back face of the control host operation panel through a fastener. All the low-frequency activation modules and the control host operation panel are electrically connected with a control host PCBA through wires, the control host PCBAis provided with a radio frequency antenna, and the control host PCBA is in wireless radio frequency communication with a host arranged in a vehicle cab through the radio frequency antenna. By the adoption of the calibration device, full-automatic calibration of multiple tires and manual calibration of a single tire can be conducted, the calibration operation method is simple, and the calibrationresult is stable and reliable.

Description

technical field [0001] The invention relates to the technical field of TPMS calibration systems, in particular to a TPMS automatic calibration device and method. Background technique [0002] TPMS (Tire Pressure Monitoring System, Tire Pressure Monitoring System) is a wireless transmission technology that uses a high-sensitivity miniature wireless sensor device fixed in the car tire to collect data such as car tire pressure and temperature while driving or stationary. And transmit the data to the host computer in the cab, display relevant data such as tire pressure and temperature in digital form in real time, and remind the driver to give an early warning in the form of buzzer or voice when the tire is abnormal (to prevent tire blowout) Automotive active safety systems. TPMS can ensure that the pressure and temperature of the tires are maintained within the standard range, which can reduce the probability of tire blowout and damage, and reduce fuel consumption and damage t...

AI Technical Summary

Problems solved by technology

This method has some disadvantages: (1) It is necessary to deflate and inflate the four tires, which is cumbersome and time-consuming; (2) It needs to be set through the operation to make the control module enter the learning screen, and the process is complicated; (3) It requires the operator to have certain Professional operation ability, most car owners can not operate by themselves, professional technicians are needed to complete the calibration process

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