Alarm management method of vehicle tyre pressure monitoring system

A technology for monitoring systems and automobile tires, applied in tire measurement, tire parts, vehicle parts, etc., can solve problems such as signal loss and signal interference, and achieve the effect of reducing the number of transmissions, reducing interference, and reducing battery power consumption

Inactive Publication Date: 2010-06-16
LIANCHUANG AUTOMOBILE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, when each tire of the car is transmitting signals, if there are two or more tire pressure sensors transmitting signals at the same time, it is easy to cause signal interference and signal loss.

Method used

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  • Alarm management method of vehicle tyre pressure monitoring system
  • Alarm management method of vehicle tyre pressure monitoring system
  • Alarm management method of vehicle tyre pressure monitoring system

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Embodiment Construction

[0011] like figure 1 As shown, in the method of the present invention, the tire pressure sensor installed in the wheel tire regularly (short time interval) measures the air pressure, temperature and acceleration of the tire, and by comparing with the preset standard value, it is judged whether there is low pressure, Conditions of high pressure, rapid gas leaks and high temperatures. When there is no need for an alarm, the tire pressure sensor transmits the pressure and temperature information of the tire at regular intervals (longer time intervals), and the receiving module displays the information through the display module after receiving the information transmitted by the sensor. If it is judged for the first time that there is a need for an alarm, write the alarm information on the corresponding data flag, and send the alarm information by radio frequency within the set time (several seconds), and at the same time count the continuous transmission of the alarm information ...

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Abstract

The invention discloses an alarm management method of a vehicle tyre pressure monitoring system, which comprises the following steps of: measuring the pressure, the temperature and the acceleration of a tyre at fixed time through a tyre pressure sensor, comparing the pressure, the temperature and the acceleration with preset standard values and then judging whether conditions of low pressure, high pressure, rapid air leakage and high temperature exist; if judging that a condition needing to give an alarm exists, writing alarm information on a corresponding data mark bit, sending out the alarm information in a radio frequency mode within setup time and simultaneously counting the emitting times of the alarm information; and after the counted emitting times of the alarm information reach a preset numerical value, stopping emitting the same alarm information and recovering normal timed monitoring and timed information emitting states. The method of the invention can effectively reduce the mutual interference among signals, decrease the electric power consumption of a battery and prolong the service life of the tyre pressure sensor.

Description

technical field [0001] The invention relates to an alarm management method of an automobile tire air pressure monitoring system. Background technique [0002] The tire pressure monitoring system (TPMS) installed on the vehicle can monitor parameters such as tire air pressure in real time, and display and alarm with visual signals (including auditory signals). Early warning of low tire pressure caused by tire leakage, and tire blowout due to high temperature and high tire pressure. It can improve the safety of automobile driving, reduce the accelerated wear of tires caused by insufficient air pressure and reduce the energy consumption of vehicles. [0003] There are currently two main types of TPMS systems. One is the TPMS system (indirect TPMS) based on wheel speed. This system uses the wheel speed of the automobile ABS system (anti-lock braking system) to compare the speed of each tire. difference, to achieve the purpose of monitoring tire pressure. The main disadvantage...

Claims

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Application Information

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IPC IPC(8): B60C23/04
Inventor 单津晖汤则萱冯明郭长江邵东山顾常飞李三明
Owner LIANCHUANG AUTOMOBILE ELECTRONICS
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