Method for identifying inner and outer tire pressure sensors

Abstract

The present invention discloses a method for identifying inner and outer tire pressure sensors comprising a signal reception step, a signal strength summing step, and an inner and outer tire identification step. The present invention allows a vehicle host to receive a first inner tire detection signal strength total value and a first outer tire detection signal strength total value, compare their magnitudes, and identify the value with the larger value as the inner tire and the value with the smaller value as the outer tire. That is, the present invention is a method that enables the vehicle host to identify the inner and outer tires by reading the signal strength of the tire pressure sensor at a mirror image position, thereby enabling more accurate identification of the inner and outer tire pressure sensors compared to the method according to the prior art.

Description

Technology Field

[0001] The present invention relates to a method for identifying inner and outer tire pressure sensors, and more specifically, provides a method applicable to vehicles such as trucks and trailers having inner and outer tires, which enables the identification of inner and outer tire pressure sensors in a vehicle host. Background Technology

[0002] Tire pressure is a critical figure related to the safe operation of a vehicle, and with technological advancements, methods of measuring tire pressure have also significantly improved. In other words, the process has become much more convenient, evolving from the past method of manually measuring each tire sequentially to the current system that uses various electronic devices to automatically measure pressure and transmit it to a monitor screen for display.

[0003] Among these, a relatively frequently encountered electronic device is the tire pressure sensor. These sensors contain built-in components for detecting tire pressure and can share data by connecting to a vehicle host via an electronic module powered by battery energy, allowing users to check tire pressure values ​​through the vehicle host. Generally, since a vehicle has four tires, four tire pressure sensors must be installed on the left front, right front, left rear, and right rear wheels, respectively. However, because the aforementioned four tire pressure sensors are identical products, it is difficult for the vehicle host to identify which tire corresponds to the value from each sensor. Therefore, the vehicle host is typically designed to determine the location of each tire pressure sensor based on information regarding the sensor's rotation direction and the strength of the received wireless signal.

[0004] However, in the case of vehicles equipped with inner and outer tires, such as trucks and trailers, the inner and outer tires are located very close to each other, making it very difficult to distinguish between them using the aforementioned method. As a result, vehicle hosts frequently make misjudgments, so engineers in the field need to develop a method to identify inner and outer tire pressure sensors.

[0005] The present invention provides a method for a tire pressure sensor to read the signal strength of a tire pressure sensor in a mirror image position to enable a vehicle host to identify the inner and outer tires, and has the effect of identifying the inner and outer tire pressure sensors more accurately compared to a method according to the prior art.

[0006] To achieve the aforementioned objectives and effects, the present invention provides a method for identifying inner and outer tire pressure sensors, the method comprising a first tire set and a second tire set having mirror images arranged thereon, wherein the first tire set includes a first inner tire pressure sensor and a first outer tire pressure sensor, and the second tire set includes a second inner tire pressure sensor and a second outer tire pressure sensor, and a signal receiving step in which the first inner tire pressure sensor reads and identifies the signal strength of the second inner tire pressure sensor and the second outer tire pressure sensor, and the first outer tire pressure sensor reads and identifies the signal strength of the second inner tire pressure sensor and the second outer tire pressure sensor; The method comprises: a signal strength summing step in which the first inner tire pressure sensor sums the signal strengths of the second inner tire pressure sensor and the second outer tire pressure sensor to calculate a total first inner tire detection signal strength value, and the first outer tire pressure sensor sums the signal strengths of the second inner tire pressure sensor and the second outer tire pressure sensor to calculate a total first outer tire detection signal strength value; and an inner / outer tire identification step in which a vehicle host receives the total first inner tire detection signal strength value and the total first outer tire detection signal strength value, compares their magnitudes, and identifies the one with the larger value as the inner tire and the one with the smaller value as the outer tire.

[0007] The present invention provides a method for identifying another inner and outer tire pressure sensor, the method comprising a first tire set and a second tire set having mirror images arranged thereon, wherein the first tire set includes a first inner tire pressure sensor and a first outer tire pressure sensor, and the second tire set includes a second inner tire pressure sensor and a second outer tire pressure sensor, and a signal receiving step in which the first inner tire pressure sensor reads and identifies the signal strength of the second inner tire pressure sensor and the second outer tire pressure sensor, and the first outer tire pressure sensor reads and identifies the signal strength of the second inner tire pressure sensor and the second outer tire pressure sensor; The method comprises an inner / outer tire identification step in which the first inner tire pressure sensor and the first outer tire pressure sensor each transmit identified signal strength data to a vehicle host, and the vehicle host compares the two sets of values ​​described above to identify the one with the larger value as the inner tire and the one with the smaller value as the outer tire, and then compares the results of the two sets to confirm whether the determination of the inner / outer tire is accurate. Brief explanation of the drawing

[0008] FIG. 1 is a perspective view illustrating the steps of a first embodiment of the present invention. FIG. 2 is a structural block perspective view of a first embodiment of the present invention. FIG. 3 is a perspective view illustrating the steps of another embodiment of the present invention. FIG. 4 is a structural block perspective view of another embodiment of the present invention. Figure 5 is a diagram (1) showing a situation in which a vehicle host determines the tire pressure sensor of each tire set. Figure 6 is a diagram (2) showing the situation in which a vehicle host determines the tire pressure sensor of each tire set. Specific details for implementing the invention

[0009] To understand the embodiment of the present invention in more detail, it is advisable to examine it in conjunction with the attached drawings. The method according to the present invention follows a general tire pressure sensor judgment procedure. In the general tire pressure sensor judgment procedure, the vehicle host first fixes each tire pressure sensor of the left and right tire sets, then determines the front and rear tires and the rotation direction of each tire, and then proceeds according to a general technique of deriving a plurality of tire pressure sensors installed on the left and right tire sets. The subsequent step is to identify the inner and outer tire pressure sensors, which is a description of the judgment step provided by the present invention.As illustrated in FIGS. 1 and 2, a method for identifying inner and outer tire pressure sensors according to the present invention comprises a first tire set (1) and a second tire set (2) having mirror images arranged thereon, wherein the first tire set (1) includes a first inner tire pressure sensor (11) and a first outer tire pressure sensor (12), and the second tire set (2) includes a second inner tire pressure sensor (21) and a second outer tire pressure sensor (22), and a signal receiving step (S1) in which the first inner tire pressure sensor (11) reads and identifies the signal strength of the second inner tire pressure sensor (21) and the second outer tire pressure sensor (22), and the first outer tire pressure sensor (12) reads and identifies the signal strength of the second inner tire pressure sensor (21) and the second outer tire pressure sensor (22); The system comprises: a signal strength summing step (S2) in which the first inner tire pressure sensor (11) sums the signal strengths of the second inner tire pressure sensor (21) and the second outer tire pressure sensor (22) to calculate a total first inner tire detection signal strength value, and the first outer tire pressure sensor (12) sums the signal strengths of the second inner tire pressure sensor (21) and the second outer tire pressure sensor (22) to calculate a total first outer tire detection signal strength value; and an inner / outer tire identification step (S3) in which a vehicle host (100) receives the total first inner tire detection signal strength value and the total first outer tire detection signal strength value, compares their magnitudes, and identifies the one with the larger value as the inner tire and the one with the smaller value as the outer tire.

[0010] The first internal tire pressure sensor (11) receives signals from the second internal tire pressure sensor (21) and the second external tire pressure sensor (22) via the first internal tire signal transmission / reception module (111), determines the strength of the signals, and can also transmit the total value of the first internal tire detection signal strength to the vehicle host (100). Furthermore, the first internal tire pressure sensor (11) calculates the signal strengths of the second internal tire pressure sensor (21) and the second external tire pressure sensor (22) that have already been received via the first internal tire signal summing module (112).

[0011] The first external tire pressure sensor (12) receives signals from the second internal tire pressure sensor (21) and the second external tire pressure sensor (22) via the first external tire signal transmission / reception module (121), determines the strength of the signals, and can also transmit the total value of the first external tire detection signal strength to the vehicle host (100). Furthermore, the first external tire pressure sensor (12) calculates the signal strengths of the second internal tire pressure sensor (21) and the second external tire pressure sensor (22) that have already been received via the first external tire signal summing module (122).

[0012] Based on the above description, the method of implementing the present invention will be explained in more detail. The reason why the vehicle host (100) can identify the inner and outer tires by comparing the magnitude of the first inner tire detection signal strength total value and the first outer tire detection signal strength total value is explained in more detail as follows, in the case where the first tire set (1) shown in FIG. 2 is the left wheel and the second tire set (2) is the right wheel. As can be seen in the drawing, the first inner tire air pressure sensor (11) is located closer to the second inner tire air pressure sensor (21) and the second outer tire air pressure sensor (22) than to the first outer tire air pressure sensor (12). Therefore, the signal strength detected by the first inner tire air pressure sensor (11) is greater. To aid understanding, the magnitude of the signal strength can be exemplified by a number, meaning that the larger the number, the greater the signal strength, and the smaller the number, the weaker the signal strength. For example, if 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 tire detection signal strength is '13'. If 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 tire detection signal strength is '11'. Therefore, the larger of the two values ​​mentioned above is the inner tire, and the smaller value is the outer tire.

[0013] As illustrated in FIGS. 2 and 3, the present invention provides another method that requires only a signal reception step (S10) and an inner / outer tire identification step (S20) without the need for a signal strength summing step. For example, if 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', then when this data is transmitted to the vehicle host (100), the vehicle host (100) can identify the location as the inner tire because the signal strength of the second inner tire pressure sensor (21) is stronger, and can identify the location as the outer tire because the signal strength of the second outer tire pressure sensor (22) is weaker. On the other hand, if 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', then this data is for the vehicle When transmitted to the host (100), the vehicle host (100) can identify the location as the inner tire because the signal strength of the second inner tire pressure sensor (21) is stronger, and can identify the location as the outer tire because the signal strength of the second outer tire pressure sensor (22) is weaker, and then the vehicle host (100) can verify the final result by comparing the results of the two sets of comparisons mentioned above.

[0014] Additionally, when the vehicle host (100) subsequently performs the steps according to the present invention, it first determines the tire set to which each tire pressure sensor belongs (e.g., determination using clockwise and counterclockwise rotation). For example, referring to FIG. 5, this is a situation where the vehicle host (100) accurately determines that the first inner tire pressure sensor (11) and the first outer tire pressure sensor (12) belong to the first tire set (1), and the second inner tire pressure sensor (21) and the second outer tire pressure sensor (22) belong to the second tire set 2. However, in reality, a misjudgment may occur. For example, as shown in FIG. 6, the vehicle host (100) may incorrectly determine that the first inner tire pressure sensor (11) belongs to the second tire set (2) and the second inner tire pressure sensor (21) belongs to the first tire set (1). Accordingly, the present invention also provides a method for eliminating errors. For example, in the first method according to the present invention, a vehicle host (100) has a reasonable range value for a first inner tire detection signal strength total value and a first outer tire detection signal strength total value built in. If the first inner tire detection signal strength total value or the first outer tire detection signal strength total value is not within the reasonable range value, the vehicle host (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 restarts all steps in the signal reception step (S1) until both the first inner tire detection signal strength total value and the first outer tire detection signal strength total value are within the reasonable value range.For example, when combining the content of the present invention described above and the content illustrated in FIG. 2, if the vehicle host (100) accurately determines the signal of each tire set as illustrated in FIG. 5, the total value of the feedback signal strength of the first internal tire pressure sensor (11) should be '13'. At this time, considering the normal fluctuation of the signal strength, the reasonable range should be '12 to 14'. However, if a misjudgment occurs as illustrated in FIG. 6, the total value of the signal strength received by the vehicle host at this time will fall outside the aforementioned range. For example, if the received signal strength is '20', since this falls outside the reasonable range of the total value of the signal strength of the first internal tire pressure sensor (11), the vehicle host (100) can determine that an error has occurred in signal matching.

[0015] To more accurately eliminate error signals, the present invention further provides a method for incorporating reasonable range values ​​for the intensity of the inner tire pressure sensor signal and the outer tire pressure sensor signal, respectively received by the first outer tire pressure sensor (12) and the first inner tire pressure sensor (11). In this method, when the vehicle host (100) receives the total value of the first inner tire signal intensity and the total value of the first outer tire signal intensity, the summed data is also received together. If any of the aforementioned values ​​are not within a reasonable range, all steps are restarted until the intensity values ​​of the inner tire pressure sensor signal and the outer tire pressure sensor signal, respectively received by the first inner tire pressure sensor (11) and the first outer tire pressure sensor (12) in the signal reception step (S1), are all within a reasonable range. For example, it is natural that the signal strength of the second internal tire pressure sensor (21) received by the first internal tire pressure sensor (11) should be between 6.5 and 7.5, but if a signal strength outside the range of 6.5 to 7.5 is received, it is determined that a signal reception error has occurred. Explanation of the symbols

[0016] 1: First tire set 11: 1st Internal Tire Pressure Sensor 111: 1st inner tire signal transmission / reception module 112: 1st Inner Tire Signal Summing Module 12: 1st external tire pressure sensor 121: 1st external tire signal transmission / reception module 122: 1st external tire signal summing module 2: Second tire set 21: Second internal tire pressure sensor 22: Second external tire pressure sensor 100: Automotive host S1: Signal reception step S2: Signal strength summing step S3: Inner / Outer Tire Identification Step S10: Signal reception step S20: Inner / Outer Tire Identification Step

Claims

Claim 1 It comprises a first tire set and a second tire set having mirror images arranged thereon, wherein the first tire set includes a first inner tire pressure sensor and a first outer tire pressure sensor, and the second tire set includes a second inner tire pressure sensor and a second outer tire pressure sensor; a signal receiving step in which the first inner tire pressure sensor reads and identifies the signal strengths of the second inner tire pressure sensor and the second outer tire pressure sensor, and the first outer tire pressure sensor reads and identifies the signal strengths of the second inner tire pressure sensor and the second outer tire pressure sensor; and a signal strength summing step in which the first inner tire pressure sensor calculates a total value of the first inner tire pressure signal strength by summing the signal strengths of the second inner tire pressure sensor and the second outer tire pressure sensor, and the first outer tire pressure sensor calculates a total value of the first outer tire pressure signal strength by summing the signal strengths of the second inner tire pressure sensor and the second outer tire pressure sensor. A method for identifying inner and outer tire pressure sensors, characterized by comprising: a vehicle host receiving the first inner tire detection signal strength total value and the first outer tire detection signal strength total value, comparing their magnitudes, and identifying the one with the larger value as the inner tire and the one with the smaller value as the outer tire. Claim 2 A method for identifying inner and outer tire pressure sensors according to claim 1, wherein the vehicle host has a built-in reasonable range value for the first inner tire detection signal strength total value and the first outer tire detection signal strength total value, and if the first inner tire detection signal strength total value or the first outer tire detection signal strength total value is not within the reasonable range value, the vehicle host rematches 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 restarts all steps in the signal reception step until both the first inner tire detection signal strength total value and the first outer tire detection signal strength total value are within the reasonable value range. Claim 3 A method for identifying inner and outer tire pressure sensors according to claim 1, wherein the vehicle host has a built-in reasonable range value for the intensity of the inner tire pressure sensor signal and the outer tire pressure sensor signal received respectively by the first outer tire pressure sensor and the first inner tire pressure sensor, and if any of the aforementioned values ​​are not within a reasonable range, the vehicle host rematches 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 restarts all steps until the intensity values ​​of the inner tire pressure sensor and the outer tire pressure sensor signals received respectively by the first inner tire pressure sensor and the first outer tire pressure sensor in the signal reception step are all within a reasonable value range. Claim 4 A signal receiving step comprising a first tire set and a second tire set having mirror images arranged thereon, wherein the first tire set includes a first inner tire pressure sensor and a first outer tire pressure sensor, and the second tire set includes a second inner tire pressure sensor and a second outer tire pressure sensor, wherein the first inner tire pressure sensor reads and identifies the signal strengths of the second inner tire pressure sensor and the second outer tire pressure sensor, and the first outer tire pressure sensor reads and identifies the signal strengths of the second inner tire pressure sensor and the second outer tire pressure sensor; A method for identifying inner and outer tire pressure sensors, characterized by comprising: a step of transmitting signal strength data identified by the first inner tire pressure sensor and the first outer tire pressure sensor, respectively, to a vehicle host, wherein the vehicle host compares the two sets of values ​​described above, identifies the one with the larger value as the inner tire and the one with the smaller value as the outer tire, and then compares the results of the two sets to confirm whether the determination of the inner and outer tires is accurate.

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