Method for identifying inner and outer tire pressure sensors

Abstract

To provide a method for identifying inner and outer tire pressure sensors by which a vehicle main unit can identify the tire pressure sensors of inner and outer wheels.SOLUTION: A method for identifying inner and outer tire pressure sensors includes: a signal receiving step S1 in which a first wheel set and a second wheel set arranged at mirror image positions are prepared, where the first wheel set includes a first inner tire pressure sensor and a first outer tire pressure sensor, and the second wheel set includes a second inner tire pressure sensor and a second outer tire pressure sensor, and the first inner tire pressure sensor reads and identifies signal intensities of the second inner tire pressure sensor and the second outer tire pressure sensor, and the first outer tire pressure sensor reads and identifies signal strengths of the second inner tire pressure sensor and the second outer tire pressure sensor; a signal intensity adding step S2; and an inner and outer wheel identifying step S3.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a method for identifying inner and outer tire pressure sensors, and particularly to a method for identifying inner and outer tire pressure sensors that is applied to vehicle types having inner and outer wheels such as trucks and trailers, enabling a vehicle main unit to identify tire pressure sensors of inner and outer wheels.

Background Art

[0002] The numerical value of tire pressure is an important numerical value related to whether a vehicle can run safely. With the progress of science and technology, the measurement method of tire pressure values has also made great progress. Conventionally, it was only possible to measure each wheel manually, but now it can be automatically measured by various electronic devices and transmitted to a monitoring monitor for display, which is very convenient.

[0003] Among electronic devices, a tire pressure sensor is often seen. A tire pressure sensor includes related components for measuring tire pressure, and an electronic module driven by battery power communicates with a matched vehicle main unit to share data, so that it is convenient for the user to view the tire pressure numerical value on the vehicle main unit. Generally, conventional vehicles had 4 wheels, so 4 tire pressure sensors were respectively attached to the left front wheel, right front wheel, left rear wheel, and right rear wheel. However, since the above-mentioned 4 tire pressure sensors were completely the same product, it was difficult for the vehicle main unit to identify which of the left front wheel, right front wheel, left rear wheel, and right rear wheel the numerical value of each tire pressure sensor corresponded to. Therefore, the conventional method collected the rotation direction information and wireless signal strength of each tire pressure sensor by the vehicle main unit to determine the position of each tire pressure sensor.

[0004] However, in the case of vehicle models with inner and outer wheels such as trucks and trailers, since the positions of the inner and outer wheels are too close, it is difficult to distinguish between the inner and outer wheels by the method described above, and it frequently occurs that the vehicle main unit misidentifies them. Therefore, the development of a method for identifying the pressure measurement devices of the inner and outer wheels has been demanded.

[0005] In view of such a situation, as a result of intensive research by the present inventor, the method for identifying the inner and outer tire pressure sensors of the present invention has been completed.

Summary of the Invention

Problems to be Solved by the Invention

[0006] The main object of the present invention is to read and identify the signal intensities of the tire pressure sensors at the mirror image positions by the tire pressure sensors, enable the vehicle main unit to distinguish between the inner and outer wheels, and accurately identify the tire pressure sensors of the inner and outer wheels more than in the prior art, and to provide a method for identifying the inner and outer tire pressure sensors.

Means for Solving the Problems

[0007] In order to solve the above problems, according to the first aspect of the present invention, there is provided a method for identifying inner and outer tire pressure sensors, comprising: preparing a first wheel set and a second wheel set installed at mirror image positions, wherein the first wheel set includes a first inner tire pressure sensor and a first outer tire pressure sensor, the second wheel set includes a second inner tire pressure sensor and a second outer tire pressure sensor, the first inner tire pressure sensor reads and identifies the signal intensities of the second inner tire pressure sensor and the second outer tire pressure sensor, the first outer tire pressure sensor reads and identifies the signal intensities of the second inner tire pressure sensor and the second outer tire pressure sensor (signal reception step); the first inner tire pressure sensor adds the read signal intensities of the second inner tire pressure sensor and the second outer tire pressure sensor to calculate a total value of the first inner wheel measurement signal intensity, the first outer tire pressure sensor adds the read signal intensities of the second inner tire pressure sensor and the second outer tire pressure sensor to calculate a total value of the first outer wheel measurement signal intensity (signal intensity addition step); the vehicle main unit receives the total value of the first inner wheel measurement signal intensity and the total value of the first outer wheel measurement signal intensity, compares their magnitudes, and determines that the one with the larger numerical value is the inner wheel and the one with the smaller numerical value is the outer wheel (inner and outer wheel identification step). A method for identifying inner and outer tire pressure sensors is provided, characterized by including the above steps.

[0008] In order to solve the above problems, according to a second aspect of the present invention, there is provided a method for identifying inner and outer tire pressure sensors, comprising: preparing a first wheel set and a second wheel set installed at mirror image positions, wherein the first wheel set includes a first inner tire pressure sensor and a first outer tire pressure sensor, and the second wheel set includes a second inner tire pressure sensor and a second outer tire pressure sensor; a signal receiving step of the first inner tire pressure sensor reading and identifying the signal intensities of the second inner tire pressure sensor and the second outer tire pressure sensor, and the first outer tire pressure sensor reading and identifying the signal intensities of the second inner tire pressure sensor and the second outer tire pressure sensor; and an inner and outer wheel identification step of the first inner tire pressure sensor and the first outer tire pressure sensor transmitting the identified signal intensity data to a vehicle main unit, the vehicle main unit comparing the above-mentioned two sets of numerical values, determining that the larger value of each set is the inner wheel and the smaller value is the outer wheel, and checking whether the determination of the inner and outer wheels is accurate by matching the comparison results of the two sets.

Advantages of the Invention

[0009] The method for identifying inner and outer tire pressure sensors of the present invention reads and identifies the signal intensities of tire pressure sensors at mirror image positions by using tire pressure sensors, enables the vehicle main unit to identify inner and outer wheels, and can accurately identify tire pressure sensors of inner and outer wheels more than the prior art.

Brief Description of the Drawings

[0010]

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Embodiments for Carrying Out the Invention

[0011] Embodiments of the present invention will be described with reference to the accompanying drawings. In each figure, those denoted by the same reference numerals have the same or similar configurations.

[0012] A method for identifying an inner and outer tire pressure sensor according to an embodiment of the present invention is performed after the determination step of a conventional tire pressure sensor. In the determination step of the conventional tire pressure sensor described above, a vehicle main unit first locks on each tire pressure sensor of the left and right wheel sets, and then performs determination of the front and rear wheels and determination of the rotation direction of each tire. Following the steps of the prior art, in subsequent steps, a plurality of tire pressure sensors on the left and right wheel sets identify the inner and outer tire pressure sensors.

[0013] (First Embodiment) Refer to FIGS. 1 and 2. As shown in FIGS. 1 and 2, a method for identifying an inner and outer tire pressure sensor according to the first embodiment of the present invention includes the following steps (S1) to (S3).

[0014] Signal reception step (S1): Prepare the first wheel set 1 and the second wheel set 2 installed at the mirror position. The first wheel set 1 includes a first inner tire pressure sensor 11 and a first outer tire pressure sensor 12. The second wheel set 2 includes a second inner tire pressure sensor 21 and a second outer tire pressure sensor 22. The first inner tire pressure sensor 11 reads and identifies the signal strengths of the second inner tire pressure sensor 21 and the second outer tire pressure sensor 22. The first outer tire pressure sensor 12 reads and identifies the signal strengths of the second inner tire pressure sensor 21 and the second outer tire pressure sensor 22.

[0015] Signal strength addition step (S2): The first inner tire pressure sensor 11 adds the signal strengths of the read second inner tire pressure sensor 21 and the second outer tire pressure sensor 22 to calculate the total value of the first inner wheel measurement signal strength. The first outer tire pressure sensor 12 adds the signal strengths of the read second inner tire pressure sensor 21 and the second outer tire pressure sensor 22 to calculate the total value of the first outer wheel measurement signal strength.

[0016] Inner and outer wheel identification step (S3): The vehicle main unit 100 receives the total value of the first inner wheel measurement signal strength and the total value of the first outer wheel measurement signal strength, compares their magnitudes, and determines that the larger value corresponds to the inner wheel and the smaller value corresponds to the outer wheel.

[0017] The first inner tire pressure sensor 11 receives the signals of the second inner tire pressure sensor 21 and the second outer tire pressure sensor 22 via the first inner wheel signal transceiver module 111, determines their signal strengths, and transmits the total value of the first inner wheel measurement signal strength to the vehicle main unit 100. The first inner tire pressure sensor 11 calculates the signal strengths of the received second inner tire pressure sensor 21 and the second outer tire pressure sensor 22 via the first inner wheel signal addition module 112.

[0018] The first outer tire pressure sensor 12 receives the signals of the second inner tire pressure sensor 21 and the second outer tire pressure sensor 22 via the first outer wheel signal transceiver module 121, determines the signal strength thereof, and transmits the total value of the first outer wheel measurement signal strengths to the vehicle main unit 100. The first outer tire pressure sensor 12 calculates the signal strengths of the received second inner tire pressure sensor 21 and second outer tire pressure sensor 22 via the first outer wheel signal addition module 122.

[0019] The above-described first embodiment will be further described in detail. When the vehicle main unit 100 compares the magnitude of the total value of the first inner wheel measurement signal strengths with the magnitude of the total value of the first outer wheel measurement signal strengths, the reason for being able to identify the inner and outer wheels will be described in detail below. In FIG. 2, the first wheel set 1 is described as the left wheel and the second wheel set 2 is described as the right wheel. As can be seen from FIG. 2, the first inner tire pressure sensor 11 is closer to the second inner tire pressure sensor 21 and the second outer tire pressure sensor 22 than the first outer tire pressure sensor 12. Therefore, the signal strength received by the first inner tire pressure sensor 11 becomes stronger. To make it easier to understand the embodiments of the present invention, the magnitude of the signal strength is represented by the magnitude of the numbers. That is, it represents that the larger the number, the stronger the signal strength, and the smaller the number, the weaker the signal strength. For example, when the signal strength of the second inner tire pressure sensor 21 received by the first inner tire pressure sensor 11 is "7" and the signal strength of the second outer tire pressure sensor 22 received by the first inner tire pressure sensor 11 is "6", the total value of the first inner wheel measurement signal strengths is "13". For example, when the signal strength of the second inner tire pressure sensor 21 received by the first outer tire pressure sensor 12 is "6" and the signal strength of the second outer tire pressure sensor 22 received by the first outer tire pressure sensor 12 is "5", the total value of the first outer wheel measurement signal strengths is "11". Therefore, by comparing the above two numerical values, it is determined that the larger numerical value is the inner wheel and the smaller numerical value is the outer wheel.

[0020] (Second Embodiment) Refer to FIGS. 3 and 4. As shown in FIGS. 3 and 4, in the method for identifying an inner and outer tire pressure sensor according to the second embodiment of the present invention, the signal strength addition step is omitted, and only the signal reception step S10 and the inner and outer wheel identification step S20 are included. For example, when the signal strength of the second inner tire pressure sensor 21 received by the first inner tire pressure sensor 11 is "7" and the signal strength of the second outer tire pressure sensor 22 received by the first inner tire pressure sensor 11 is "6", after transmitting the above-described data to the vehicle main unit 100, the vehicle main unit 100 identifies that the position of the second inner tire pressure sensor 21 is on the inner wheel because its signal strength is strong, and identifies that the position of the second outer tire pressure sensor 22 is on the outer wheel because its signal strength is weak. When the signal strength of the second inner tire pressure sensor 21 received by the first outer tire pressure sensor 12 is "6" and the signal strength of the second outer tire pressure sensor 22 received by the first outer tire pressure sensor 12 is "5", after transmitting the above-described data to the vehicle main unit 100, the vehicle main unit 100 identifies that the position of the second inner tire pressure sensor 21 is on the inner wheel because its signal strength is strong, and identifies that the position of the second outer tire pressure sensor 22 is on the outer wheel because its signal strength is weak. Subsequently, the vehicle main unit 100 compares the above-described two sets of comparison results to confirm the final result.

[0021] Also, in the steps of the present invention, the vehicle main unit 100 first determines the wheel set to which each tire pressure sensor belongs (for example, it is determined using the clockwise and counterclockwise rotation directions). For example, as shown in FIG. 5, this vehicle main unit 100 accurately determines that the first inner tire pressure sensor 11 and the first outer tire pressure sensor 12 belong to the first wheel set 1, and the second inner tire pressure sensor 21 and the second outer tire pressure sensor 22 belong to the second wheel set 2. However, in reality, an incorrect determination may be made. For example, as shown in FIG. 6, the vehicle main unit 100 may erroneously determine that the first inner tire pressure sensor 11 belongs to the second wheel set 2, or may erroneously determine that the second inner tire pressure sensor 21 belongs to the first wheel set 1. Therefore, the present invention further provides a method for preventing errors. The present invention takes the first method as an example. The vehicle main unit 100 includes a reasonable range value of the total value of the first inner wheel measurement signal intensities and the total value of the first outer wheel measurement signal intensities. When the values of the total value of the first inner wheel measurement signal intensities and the total value of the first outer wheel measurement signal intensities are not within the reasonable range value, the vehicle main unit 100 rematches the first inner tire pressure sensor 11, the first outer tire pressure sensor 12, the second inner tire pressure sensor 21, and the second outer tire pressure sensor 22, and resumes the steps from the signal reception step S1 until both the total value of the first inner wheel measurement signal intensities and the total value of the first outer wheel measurement signal intensities are within the reasonable numerical range. For example, as can be seen by combining the content shown in FIG. 2 with the above description of the present invention, when the vehicle main unit 100 accurately determines the signals of each wheel set as shown in FIG. 5, considering that the total value of the feedback signal intensities of the first inner tire pressure sensor 11 is "13" and the reasonable range value of the normal variation of the signal intensities is 12 to 14, as shown in FIG. 6, when an incorrect determination is made, the total value of the signal intensities received by the vehicle main unit 100 is outside the above-mentioned range. For example, when the signal intensity has already deviated from the reasonable range of the total value of the signal intensities of the first inner tire pressure sensor 11, the vehicle main unit 100 determines that there is a signal matching error.

[0022] In order to more accurately eliminate the error signal, the present invention provides another method. The vehicle main unit 100 includes the strength reasonable range values ​​of the inner tire pressure sensor signal and the outer tire pressure sensor signal received by the first outer tire pressure sensor 12 and the first inner tire pressure sensor 11, respectively. In this method, when the vehicle main unit 100 receives the first inner wheel signal strength total value and the first outer wheel signal joint total value, it also receives the sum data. If any one of the above values ​​is not within the reasonable range values, the steps are resumed from the signal receiving step S1 until the strength values ​​of the inner tire pressure sensor signal and the outer tire pressure sensor signal received by the first inner tire pressure sensor 11 and the first outer tire pressure sensor 12, respectively, are both within the reasonable numerical range. For example, since the signal strength from the second inner tire pressure sensor 21 must be 6.5 to 7.5 for the first inner tire pressure sensor 11, if an intensity signal other than 6.5 to 7.5 is received, it is determined that an error has occurred in the signal reception. [Explanation of symbols]

[0023] 1 First set of wheels 2 Second set of wheels 11 First inner tire pressure sensor 12 First outer tire pressure sensor 21 Second inner tire pressure sensor 22 Second outer tire pressure sensor 100 Vehicle main unit 111 first inner wheel signal transmitting and receiving module 112 first inner wheel signal summing module 121 first outer wheel signal transmitting and receiving module 122 first outer wheel signal summing module S1 Signal receiving step S2 Signal strength addition step S3 Inner and outer wheel identification step S10 Signal receiving step S20 Inner and outer wheel identification step

Claims

1. A method for identifying inner and outer tire pressure sensors, comprising: a signal receiving step of preparing a first wheel set and a second wheel set installed in a mirror image position, the first wheel set including a first inner tire pressure sensor and a first outer tire pressure sensor, the second wheel set including a second inner tire pressure sensor and a second outer tire pressure sensor, the first inner tire pressure sensor reading and identifying the signal strength of the second inner tire pressure sensor and the second outer tire pressure sensor, and the first outer tire pressure sensor reading and identifying the signal strength of the second inner tire pressure sensor and the second outer tire pressure sensor; a signal strength adding step in which the first inner tire pressure sensor adds the signal strengths read from the second inner tire pressure sensor and the second outer tire pressure sensor to calculate a total value of a first inner wheel measurement signal strength, and the first outer tire pressure sensor adds the signal strengths read from the second inner tire pressure sensor and the second outer tire pressure sensor to calculate a total value of a first outer wheel measurement signal strength; and an inner / outer wheel discrimination step in which the vehicle main unit receives the first inner wheel measurement signal strength sum value and the first outer wheel measurement signal strength sum value, compares the magnitudes of the first inner wheel measurement signal strength sum value and determines that the larger value is the inner wheel and the smaller value is the outer wheel. How to identify inside and outside tire pressure sensors.

2. The vehicle main unit includes a reasonable range value of the first inner wheel measurement signal strength sum value and the first outer wheel measurement signal strength sum value, and if the numerical value of the first inner wheel measurement signal strength sum value and the first outer wheel measurement signal strength sum value are not within the reasonable range numerical value, the vehicle main unit newly matches the first inner tire pressure sensor, the first outer tire pressure sensor, the second inner tire pressure sensor and the second outer tire pressure sensor, and resumes the step from the signal receiving step until both the first inner wheel measurement signal strength sum value and the first outer wheel measurement signal strength sum value are within the reasonable numerical range.

3. 2. The method of claim 1, wherein the vehicle main unit includes a reasonable range value of the intensity of the inner tire pressure sensor signal and the outer tire pressure sensor signal received by the first outer tire pressure sensor and the first inner tire pressure sensor, respectively, and if any one of the values ​​is not within the reasonable range value, the vehicle main unit newly matches the first inner tire pressure sensor, the first outer tire pressure sensor, the second inner tire pressure sensor, and the second outer tire pressure sensor, and resumes the steps from the signal receiving step until the intensity values ​​of the inner tire pressure sensor signal and the outer tire pressure sensor signal received by the first inner tire pressure sensor and the first outer tire pressure sensor, respectively, are both within the reasonable numerical range.

4. A method for identifying inner and outer tire pressure sensors, comprising: a signal receiving step of preparing a first wheel set and a second wheel set installed in a mirror image position, the first wheel set including a first inner tire pressure sensor and a first outer tire pressure sensor, the second wheel set including a second inner tire pressure sensor and a second outer tire pressure sensor, the first inner tire pressure sensor reading and identifying the signal strength of the second inner tire pressure sensor and the second outer tire pressure sensor, and the first outer tire pressure sensor reading and identifying the signal strength of the second inner tire pressure sensor and the second outer tire pressure sensor; The first inner tire pressure sensor and the first outer tire pressure sensor transmit the identified signal strength data to a vehicle main unit, and the vehicle main unit compares the two sets of values, and determines whether the larger value of each set is the inner wheel and the smaller value is the outer wheel, and compares the two sets of comparison results to confirm whether the determination of the inner and outer wheels is correct. How to identify inside and outside tire pressure sensors.

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