CN114475103B - Tire pressure monitoring system fault judging method - Google Patents
Tire pressure monitoring system fault judging method Download PDFInfo
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- CN114475103B CN114475103B CN202210309475.3A CN202210309475A CN114475103B CN 114475103 B CN114475103 B CN 114475103B CN 202210309475 A CN202210309475 A CN 202210309475A CN 114475103 B CN114475103 B CN 114475103B
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- tire pressure
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- pressure sensor
- pressure data
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012544 monitoring process Methods 0.000 title claims abstract description 24
- 238000012423 maintenance Methods 0.000 claims abstract description 21
- 230000004913 activation Effects 0.000 claims abstract description 9
- 238000003745 diagnosis Methods 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0479—Communicating with external units being not part of the vehicle, e.g. tools for diagnostic, mobile phones, electronic keys or service stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
- B60C23/0481—System diagnostic, e.g. monitoring battery voltage, detecting hardware detachments or identifying wireless transmission failures
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a fault judging method of a tire pressure monitoring system, which comprises the following steps: step one, adopting maintenance equipment to send an activation signal to the tire pressure sensor to activate the tire pressure sensor; step two, receiving tire pressure data sent by each tire pressure sensor through maintenance equipment, and if the tire pressure data is not received, indicating that the tire pressure sensor fails; step three, after the maintenance equipment receives the tire pressure data; and step four, measuring the tire pressure data of the corresponding tire of the tire pressure sensor through an external method. According to the fault judging method of the tire pressure monitoring system, through the arrangement of the first step to the fourth step, whether the tire pressure monitoring system has faults or not can be effectively detected.
Description
Technical Field
The invention relates to a judging method, in particular to a fault judging method of a tire pressure monitoring system.
Background
The tire pressure monitoring system is an extremely important system on the current vehicle, the tire pressure of the tire is monitored, the tire pressure condition of the current automobile tire can be effectively known, prompt is timely made, the driver is reminded of timely supplementing the tire pressure, and the problem caused by insufficient tire pressure or overhigh tire pressure in the running process of the vehicle is avoided.
The prior tire pressure monitoring system mainly adopts an indirect mode and a direct mode, and the direct mode has many advantages compared with the indirect mode, so that the prior art adopts more direct modes, the main principle of the direct mode is that an automobile main control board is used as an upper computer, then tire pressure monitoring sensors are arranged in four tires in a one-to-one correspondence mode, the effect of monitoring tire pressure data is achieved through the mode of wireless transmission between the two sensors, and the prior tire pressure monitoring system can not report data in real time in order to save electric energy, so that when the tire pressure sensor fails, the automobile main control board in the automobile can not timely and effectively know that the current tire pressure sensor fails, and particularly when the automobile stops running, the tire pressure sensor is in a dormant state, whether the current tire pressure sensor fails or not can be known.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a tire pressure monitoring system fault judging method capable of effectively detecting whether a tire pressure sensor breaks down or not.
In order to achieve the above purpose, the present invention provides the following technical solutions: a tire pressure monitoring system fault judging method is characterized in that: the method comprises the following steps:
step one, adopting maintenance equipment to send an activation signal to the tire pressure sensor to activate the tire pressure sensor;
step two, receiving tire pressure data sent by each tire pressure sensor through maintenance equipment, and if the tire pressure data is not received, indicating that the tire pressure sensor fails;
step three, after the maintenance equipment receives the tire pressure data, calculating tire pressure threshold parameters driving the alarm according to the tire pressure data, programming the tire pressure threshold parameters driving the alarm into the tire pressure sensor, starting the automobile main control board to check whether the tire pressure alarm exists or not, and if the tire pressure alarm does not exist, indicating that the alarm system fails;
and step four, measuring the tire pressure data of the corresponding tire of the tire pressure sensor through an external method, comparing the tire pressure data with the received tire pressure data, and if the error range is exceeded, indicating that the tire pressure sensor fails.
As a further improvement of the present invention, the step of activating the tire pressure sensor in the step one is specifically as follows:
step one, connecting an OBD diagnosis line or a connection VCI of maintenance equipment with an OBD port of a vehicle to enable the maintenance equipment to communicate with the vehicle;
step one, starting an automobile;
step three, the maintenance equipment copies the identity information of each tire pressure sensor of the vehicle and stores the identity information;
and step four, each tire pressure sensor sends out an activation signal in one-to-one correspondence.
As a further improvement of the present invention, the fourth step further includes a step of comparing:
step four, calculating the variance of each tire pressure data;
step four, extracting tire pressure data with the maximum variance, and extracting a tire pressure sensor corresponding to the tire pressure data;
and step four, measuring and calculating deformation values of all the tires, calculating variances of the deformation values, judging whether the variances of the deformation values of the tires corresponding to the tire pressure sensors in the step four are maximum, and if not, indicating that the tire pressure sensors are faulty.
As a further improvement of the present invention, in the fourth step, when the tire corresponding to the maximum variance of the deformation value is not corresponding to the tire pressure sensor corresponding to the maximum variance of the tire pressure data, the tire pressure data of the tire corresponding to the deformation value is estimated, and compared with the tire pressure data output by the tire pressure sensor, if the difference value between the two data exceeds the error value, the failure of the tire pressure sensor is judged.
As a further improvement of the present invention, the tire pressure data of the tire corresponding to the estimated deformation value in the fourth step is specifically as follows:
；
wherein P is tire pressure data, G is pressure applied to a tire by a vehicle, R is a free radius of the tire, U is a section width of the tire, J is a ratio of average ground pressure to tire pressure, and s is a deformation value.
As a further improvement of the present invention, the external method in the fourth step includes detecting the tire pressure by directly connecting the tire pressure monitor to the tire valve.
The invention has the beneficial effects that the tire pressure sensor can be effectively activated through the arrangement of the first step, the tire pressure sensor is driven to work and transmit the tire pressure data, then through the arrangement of the second step, whether the tire pressure sensor fails or not can be judged in a mode of detecting whether the tire pressure sensor transmits the tire pressure data or not, and through the arrangement of the third step, whether the alarm module in the monitoring system fails or not can be effectively detected, and through the arrangement of the fourth step, the detection precision of the tire pressure sensor can be effectively detected, and whether the tire pressure sensor fails or not is further judged.
Detailed Description
The invention will be further described in detail with reference to the examples given below.
The fault judging method of the tire pressure monitoring system of the embodiment is characterized in that: the method comprises the following steps:
step one, adopting maintenance equipment to send an activation signal to the tire pressure sensor to activate the tire pressure sensor;
step two, receiving tire pressure data sent by each tire pressure sensor through maintenance equipment, and if the tire pressure data is not received, indicating that the tire pressure sensor fails;
step three, after the maintenance equipment receives the tire pressure data, calculating tire pressure threshold parameters driving the alarm according to the tire pressure data, programming the tire pressure threshold parameters driving the alarm into the tire pressure sensor, starting the automobile main control board to check whether the tire pressure alarm exists or not, and if the tire pressure alarm does not exist, indicating that the alarm system fails;
and step four, measuring the tire pressure data of the tire corresponding to the tire pressure sensor through an external method, comparing the tire pressure data with the received tire pressure data, and if the error range is exceeded, indicating the failure of the tire pressure sensor, wherein in the process of using the method of the embodiment, only the steps one to four are needed to be executed, so that whether the tire pressure monitoring system fails or not can be effectively judged through three aspects of detecting the failure of the tire pressure sensor, the failure of an alarm system and the failure of the detection precision of the sensor, and the effect of automatic detection is effectively realized.
As a specific embodiment of an improvement, the step of activating the tire pressure sensor in the step one specifically includes the following steps:
step one, connecting an OBD diagnosis line or a connection VCI of maintenance equipment with an OBD port of a vehicle to enable the maintenance equipment to communicate with the vehicle;
step one, starting an automobile;
step three, the maintenance equipment copies the identity information of each tire pressure sensor of the vehicle and stores the identity information;
and step four, each tire pressure sensor is in one-to-one correspondence to send out an activation signal, through the arrangement of the steps, the activation signal of the tire pressure sensor in the vehicle can be directly copied by effectively using the OBD diagnosis line, and then the tire pressure sensor can be directly activated, so that the activation step is greatly simplified.
As an improved specific embodiment, the fourth step further includes the steps of comparing:
step four, calculating the variance of each tire pressure data;
step four, extracting tire pressure data with the maximum variance, and extracting a tire pressure sensor corresponding to the tire pressure data;
and fourthly, measuring and calculating deformation values of all tires, calculating variances of the deformation values, judging whether the variances of the deformation values of the tires corresponding to the tire pressure sensors in the fourth step are maximum, if not, indicating that the tire pressure sensors are failed, and when the tire pressure monitoring system fails, always, not all the tire pressure sensors fail together, so that through the arrangement of the steps, the specific tire pressure sensor can be quickly and effectively judged, and meanwhile, the used parameters are the tire deformation values, and the values can be directly measured through an external ruler, so that the failure detection of the tire pressure monitoring system can be effectively realized under the condition that no external tire pressure detection equipment is arranged.
As a specific implementation manner of improvement, in the fourth step, when the tire corresponding to the maximum variance of the deformation value is not corresponding to the tire pressure sensor corresponding to the maximum variance of the tire pressure data, the tire pressure data of the tire corresponding to the deformation value is estimated and compared with the tire pressure data output by the tire pressure sensor, if the difference between the two exceeds the error value, the failure of the tire pressure sensor is judged, after one tire pressure sensor with the failure is detected through the steps, whether the other tire pressure sensor fails is detected, because the following conditions occur in the process of detection in the steps, the tire pressure data transmitted by the four tire pressure sensors are respectively 1, 2.1 atmospheres, 2.2 atmospheres, 3 atmospheres, and 4 atmospheres, and the deformation value is judged, and the tire pressure sensor 1 corresponds to 5cm of the tire pressure, the tire pressure sensor 2 corresponds to 5.2cm of the tire pressure, the tire pressure sensor 2cm 5cm, the tire pressure sensor 4 cm is further judged, and the deformation value 4 is further judged, and accordingly, the deformation value is further judged, and whether the deformation value is required to be calculated according to the error value, and the error value is further judged, and whether the deformation value is calculated according to the error value is the error value, and the error value is calculated, and whether the error value is greater than the error value is equal to the error value, and the error value is greater than the error value is calculated, and the error value is 2, and the error is 2 is calculated.
As a specific embodiment of an improvement, the tire pressure data of the tire corresponding to the estimated deformation value in the fourth step is as follows:
；
wherein P is tire pressure data, G is pressure applied to the tire by the vehicle, R is free radius of the tire, U is section width of the tire, J is ratio of average ground pressure to tire pressure, s is deformation value, by adopting the formula, tire pressure data under the current deformation value can be effectively estimated through free moving of the tire, weight of the vehicle, deformation value and section width (namely width of deformed part of the tire) which can be measured by an external ruler, and professional tire pressure monitoring equipment is not needed.
As an improved specific implementation mode, the external method in the fourth step comprises the steps of adopting the tire pressure monitor to be directly connected to the tire valve for detecting the tire pressure, adopting the arrangement of the tire pressure monitor, the current tire pressure data can be accurately detected, and therefore, whether the tire pressure sensor fails or not can be accurately and effectively judged by comparing the tire pressure data.
In summary, the method for determining the tire pressure monitoring system according to the present embodiment adopts the arrangement of the first to fourth steps, so as to effectively realize accurate and effective detection and determination of whether the tire pressure monitoring system is faulty.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (3)
1. A tire pressure monitoring system fault judging method is characterized in that: the method comprises the following steps:
step one, adopting maintenance equipment to send an activation signal to the tire pressure sensor to activate the tire pressure sensor;
step two, receiving tire pressure data sent by each tire pressure sensor through maintenance equipment, and if the tire pressure data is not received, indicating that the tire pressure sensor fails;
step three, after the maintenance equipment receives the tire pressure data, calculating tire pressure threshold parameters driving the alarm according to the tire pressure data, programming the tire pressure threshold parameters driving the alarm into the tire pressure sensor, starting the automobile main control board to check whether the tire pressure alarm exists or not, and if the tire pressure alarm does not exist, indicating that the alarm system fails;
measuring tire pressure data of a tire corresponding to the tire pressure sensor through an external method, comparing the tire pressure data with the received tire pressure data, and if the tire pressure data exceeds an error range, indicating that the tire pressure sensor fails; the step of activating the tire pressure sensor in the step one is specifically as follows:
step one, connecting an OBD diagnosis line or a connection VCI of maintenance equipment with an OBD port of a vehicle to enable the maintenance equipment to communicate with the vehicle;
step one, starting an automobile;
step three, the maintenance equipment copies the identity information of each tire pressure sensor of the vehicle and stores the identity information;
step four, each tire pressure sensor sends out an activation signal in one-to-one correspondence; the fourth step further comprises a step of comparing:
step four, calculating the variance of each tire pressure data;
step four, extracting tire pressure data with the maximum variance, and extracting a tire pressure sensor corresponding to the tire pressure data;
and step four, measuring and calculating deformation values of all the tires, calculating variances of the deformation values, judging whether the variances of the deformation values of the tires corresponding to the tire pressure sensors in the step four are maximum, and if not, indicating that the tire pressure sensors are faulty.
2. The tire pressure monitoring system failure determination method according to claim 1, characterized in that: and in the fourth step, when the tire corresponding to the maximum variance of the deformation value is not corresponding to the tire pressure sensor corresponding to the maximum variance of the tire pressure data, estimating the tire pressure data of the tire corresponding to the deformation value, comparing the tire pressure data with the tire pressure data output by the inner tire pressure sensor, and judging that the tire pressure sensor fails if the difference value between the tire pressure data and the tire pressure data exceeds the error value.
3. The tire pressure monitoring system failure determination method according to claim 2, characterized in that: the specific steps of estimating the tire pressure data of the tire corresponding to the deformation value in the fourth step are as follows:
wherein P is tire pressure data, G is pressure applied to a tire by a vehicle, R is a free radius of the tire, U is a section width of the tire, J is a ratio of average ground pressure to tire pressure, and s is a deformation value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210309475.3A CN114475103B (en) | 2022-03-28 | 2022-03-28 | Tire pressure monitoring system fault judging method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210309475.3A CN114475103B (en) | 2022-03-28 | 2022-03-28 | Tire pressure monitoring system fault judging method |
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| Publication Number | Publication Date |
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| CN114475103A CN114475103A (en) | 2022-05-13 |
| CN114475103B true CN114475103B (en) | 2024-03-08 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004122934A (en) * | 2002-10-02 | 2004-04-22 | Nissan Motor Co Ltd | Tire air pressure alarm device |
| CN201325292Y (en) * | 2008-11-20 | 2009-10-14 | 奇瑞汽车股份有限公司 | Automobile tyre pressure monitor system based on wireless sensing device and CAN bus |
| WO2015055722A1 (en) * | 2013-10-15 | 2015-04-23 | Continental Automotive Gmbh | Method and malfunction detection system for detecting a malfunction of a pressure sensor of a tire pressure monitoring system of a vehicle |
| CN104709009A (en) * | 2015-02-15 | 2015-06-17 | 广东风华芯电科技股份有限公司 | Warning method adopting tire pressure sensors and warning system adopting tire pressure sensors |
| CN211764725U (en) * | 2020-03-12 | 2020-10-27 | 青岛黄海学院 | Automobile tire pressure monitoring and variable control system and automobile |
| CN113608757A (en) * | 2021-06-17 | 2021-11-05 | 深圳市元征未来汽车技术有限公司 | Data processing method of tire pressure sensor and related device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7884707B2 (en) * | 2008-04-23 | 2011-02-08 | Spx Corporation | Tire pressure monitor system tool with parts number database |
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- 2022-03-28 CN CN202210309475.3A patent/CN114475103B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004122934A (en) * | 2002-10-02 | 2004-04-22 | Nissan Motor Co Ltd | Tire air pressure alarm device |
| CN201325292Y (en) * | 2008-11-20 | 2009-10-14 | 奇瑞汽车股份有限公司 | Automobile tyre pressure monitor system based on wireless sensing device and CAN bus |
| WO2015055722A1 (en) * | 2013-10-15 | 2015-04-23 | Continental Automotive Gmbh | Method and malfunction detection system for detecting a malfunction of a pressure sensor of a tire pressure monitoring system of a vehicle |
| CN104709009A (en) * | 2015-02-15 | 2015-06-17 | 广东风华芯电科技股份有限公司 | Warning method adopting tire pressure sensors and warning system adopting tire pressure sensors |
| CN211764725U (en) * | 2020-03-12 | 2020-10-27 | 青岛黄海学院 | Automobile tire pressure monitoring and variable control system and automobile |
| CN113608757A (en) * | 2021-06-17 | 2021-11-05 | 深圳市元征未来汽车技术有限公司 | Data processing method of tire pressure sensor and related device |
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