CN117755019A - Tire pressure detection method and system - Google Patents
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Abstract
The invention discloses a tire pressure detection method and a system, which relate to the technical field of tire pressure detection and solve the problems that due to aging of a vehicle tire sensor and insufficient electric quantity, false alarm or error judgment exists in the sensor.
Description
Technical Field
The invention relates to the technical field of tire pressure detection, in particular to a tire pressure detection method and system.
Background
Tire pressure, in the strict sense, refers to the pressure of the air inside the tire. When the engine is the heart of the automobile in automobile maintenance, the life of the automobile is exhausted due to the damage of the engine, and then the tire pressure is the blood pressure of the automobile, and the tire pressure plays a vital role in the performance and the power of the automobile.
The application with the publication number of CN103085613B discloses a tire pressure detection method, wherein the detection method is to report the detection result to a user through the detection and message reporting of a tire pressure display device by using an image picture and a voice report, and the tire pressure detection module can directly correct errors and detect the failure of the tire pressure detection module; the tire pressure display device comprises a host module, a plurality of tire pressure detection modules and a vehicle sound module, wherein the host module comprises a central processing unit and a receiver, and can actively report the tire position and the tire pressure when the tire is inflated, synchronously execute image pictures and voice broadcasting, and directly correct errors and detect the warning of the failure of the tire pressure detection modules.
In the process of detecting the tire pressure, the value of the internal tire pressure and the value given by the sensor can be directly confirmed to judge whether the tire pressure is normal or not, but due to the problems of aging of the vehicle tire sensor and insufficient electric quantity, the sensor can be misreported or error judgment can occur, and the tire pressure detection process is problematic, so that the accuracy of the tire pressure detection process is affected.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a tire pressure detection method and a system, which solve the problems of false alarm or judgment error of a sensor of a vehicle tire caused by aging of the sensor and insufficient electric quantity.
In order to achieve the above purpose, the invention is realized by the following technical scheme: a tire pressure detection system, comprising:
the tire pressure parameter acquisition end acquires the tire pressure parameters generated by the tire pressure sensor and the tire pressure parameters obtained by external detection, marks the tire pressure parameters obtained by external detection as external tire pressure parameters, marks the tire pressure parameters generated by the tire pressure sensor as internal tire pressure parameters, and transmits the external tire pressure parameters and the internal tire pressure parameters to the tire pressure abnormality determination end;
the tire pressure abnormality determining end determines whether the two groups of tire pressure parameters are consistent through the received external tire pressure parameters and the received internal tire pressure parameters, if so, directly analyzes whether the tire pressure is normal, if not, determines an error, and if the error is overlarge, executes a subsequent pulse signal analysis center in a specific mode that:
calibrating external tire pressure parameters to WT i Calibrating the internal tire pressure parameter to be NT i Wherein i represents different detected objects;
determining WT i Whether or not it satisfies: WT (WT) i ＝NT i If yes, determining the tire pressure parameter WT i Or NT i If the tire pressure standard is met, not performing any processing, and if the tire pressure standard is not met, generating a tire pressure abnormal signal and displaying the tire pressure abnormal signal through a display end;
determining WT i And NT i Whether or not it satisfies: WT i -NT i Y1 is larger than Y1, wherein Y1 is a preset value, if yes, representing that the error is overlarge, an abnormality exists, generating an execution instruction, executing a subsequent pulse signal analysis center, and if not, judging the WT i If the tire pressure standard is met, not performing any processing, and if the tire pressure standard is not met, generating a tire pressure abnormal signal and displaying the tire pressure abnormal signal through a display end, wherein the tire pressure standard is a set of preset intervals;
the pulse signal analysis center collects the wireless modulation pulse signals for generating the internal tire pressure parameters, then collects the pulse signals generated in the past by the tire pressure sensor in the vehicle system, analyzes the pulse signals generated in the past, determines a standard peak value interval and a standard slope interval, and judges whether the tire pressure sensor is normal or not, wherein the specific mode is as follows:
s1, constructing waveforms generated by pulse signals generated by the tire pressure sensor in the past, and sequentially confirming peak values FZ generated by each group of waveforms k Valley value GZ1 on both left and right sides k And GZ2 k Where k represents the different waveforms,by usingObtaining a slope parameter XL1 generated between a peak value and a different valley value k And XL2 k Wherein T1 is FZ k With GZ1 k Time difference between, wherein T2 is FZ k With GZ2 k Time difference between two sets of slope parameters XL1 k And XL2 k Selecting a maximum value, and calibrating the selected maximum value as a standard slope BX k ；
S2, generating a plurality of groups of peak values FZ by different waveforms k Standard slope BX k The mean processing is performed to obtain a standard peak B1 and a standard parameter B2, which then satisfy:the waveform of (2) is calibrated to be a standard waveform, otherwise, the following conditions are satisfied:or->The waveform of (2) is marked as a floating waveform, wherein X1 and X2 are both preset values;
s3, determining a plurality of standard waveform internal peak values FZ k Constructing standard peak intervals, and determining standard slopes BX in a plurality of standard waveforms k Constructing a standard slope interval;
s4, reconfirming the wireless modulation pulse signal for generating the internal tire pressure parameter, then confirming the waveform generated by the wireless modulation pulse signal, confirming the peak value of the waveform, and formulating the peak value as a pulse peak value, and then adopting the same mode in the step S1, confirming the standard slope of the waveform of the wireless modulation pulse signal, and formulating the standard slope as a pulse slope;
s5, confirming whether pulse peak values and pulse slopes meet the following conditions: the pulse peak value epsilon standard peak value interval and the pulse slope epsilon standard slope interval represent that the wireless modulation pulse signal generated by the tire pressure sensor is a normal fluctuation signal if both the pulse peak value epsilon standard peak value interval and the pulse slope epsilon standard slope interval are met, meanwhile, a rotating speed test signal is generated and transmitted to a periodic rotating speed analysis center, if one of the pulse peak value epsilon standard peak value interval and the pulse slope epsilon standard slope interval is not met or not met, the tire pressure sensor is possibly abnormal, a sensor abnormal signal is generated, and the generated sensor abnormal signal is transmitted to an external display end for being checked by external personnel.
Preferably, the system also comprises a periodic rotation speed analysis center, wherein the periodic rotation speed analysis center directly extracts wheel rotation speed parameters generated in the past 6 hours from the vehicle machine system according to the rotation speed test signal, different marks are carried out on different wheel rotation speed parameters, the number of the tire to be tested is determined, the wheel rotation speed parameters generated by the tire to be tested are calibrated as parameters to be checked, and whether the parameters to be checked are normal or not is detected; the specific method is as follows:
the average value of a plurality of groups of parameters to be checked generated in the past 6 hours of the tyre to be tested is processed, the processed average value is marked as HD, the wheel rotating speed parameters generated by other wheels are determined, the average value of the rotating speed parameters of the wheels corresponding to the wheels is determined, and the processed average value is marked as JD t Wherein t represents different wheels;
relocking several sets of JDs t Whether the analysis HD satisfies the following criteria: and if the value of Y2 is not met, representing that the tire to be tested has false alarm in the tire pressure detection process, the generated value is inaccurate, possibly caused by the temperature of the tire or other factors, and no processing is needed.
Preferably, a tire pressure detecting method includes the steps of:
step one, collecting tire pressure parameters generated by a tire pressure sensor and tire pressure parameters obtained by external detection, judging whether the two groups of tire pressure parameters are consistent, if so, directly analyzing whether the tire pressure is normal, if not, determining an error, and if the error is too large, executing a subsequent pulse signal analysis center;
step two, a pulse signal analysis center collects the wireless modulation pulse signals for generating the internal tire pressure parameters, then the pulse signals generated by the tire pressure sensor are collected from the vehicle system, the pulse signals generated by the tire pressure sensor are analyzed, a standard peak value interval and a standard slope interval are determined, the wireless modulation pulse signals for generating the internal tire pressure parameters are reconfirmed, whether the peak value and the slope generated by the pulse signals meet corresponding standard conditions or not is judged, if yes, the subsequent test processing is carried out, and if not, the sensor abnormal signals are directly generated and displayed;
and thirdly, directly extracting wheel rotation speed parameters generated in the past 6 hours from a vehicle machine system, marking different wheel rotation speed parameters differently, determining the number of the tire to be tested, calibrating the wheel rotation speed parameters generated by the tire to be tested as parameters to be checked, detecting whether the parameters to be checked are normal, and judging whether the tire pressure of the tire to be tested is normal.
Advantageous effects
The invention provides a tire pressure detection method and a tire pressure detection system. Compared with the prior art, the method has the following beneficial effects:
the invention obtains and confirms the tire pressure in the tire, judges whether two groups of tire pressure parameters are consistent, confirms the waveform diagram of the past signal generated by the corresponding tire pressure sensor aiming at the situation that the tire pressure parameters are inconsistent, confirms the valley value and the peak value generated between different signals in the signal generated by the past by analyzing the difference between the signal generated by the current time and the signal generated by the past, preferentially removes the signal with severe fluctuation, can confirm the corresponding standard waveform after the removal is finished, and the similarity of the determined large number of standard waveforms is very high, can confirm the corresponding standard interval from the large number of standard waveforms, and analyzes the peak value and the standard value generated by the waveform to judge whether the waveform belongs to the corresponding standard interval, if the waveform belongs to the waveform generated by the current time accords with the corresponding standard, if the waveform generated by the current time does not accord with the corresponding standard, the corresponding problem exists in the tire pressure sensor, generates the corresponding signal, displays the corresponding signal for the external personnel to check, and timely detects whether the tire pressure sensor has the corresponding problem and improves the tire pressure, and can fully identify whether the tire pressure sensor works normally in the detection process;
in order to confirm whether the tire pressure parameter is wrongly reported in the tire detection process, the rotating speed of the corresponding tire is considered, analysis is carried out, whether the rotating speed of the corresponding tire is abnormal or not is confirmed, and whether the tire pressure is abnormal or not is judged, so that the detection process is more comprehensive, and the effect is better.
Drawings
FIG. 1 is a schematic diagram of a principal frame of the present invention;
fig. 2 is a waveform diagram of a pulse signal according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, the present application provides a tire pressure detecting system, which includes a tire pressure parameter collecting end, a tire pressure abnormality determining end, a pulse signal analyzing center, a periodic rotation speed analyzing center, and a display end;
the tire pressure parameter acquisition end is electrically connected with the tire pressure abnormality determination end input node, the tire pressure abnormality determination end is electrically connected with the pulse signal analysis center input node, the pulse signal analysis center is electrically connected with the periodic rotation speed analysis center input node, and the tire pressure abnormality determination end, the pulse signal analysis center and the periodic rotation speed analysis center are electrically connected with the display end input node;
the tire pressure parameter acquisition end acquires the tire pressure parameters generated by the tire pressure sensor and the tire pressure parameters obtained by external detection, the tire pressure parameters obtained by external detection are calibrated to be external tire pressure parameters, the tire pressure parameters generated by the tire pressure sensor are calibrated to be internal tire pressure parameters, and the external tire pressure parameters and the internal tire pressure parameters are transmitted to the tire pressure abnormality determination end;
the tire pressure abnormality determination end determines whether the two groups of tire pressure parameters are consistent through the received external tire pressure parameters and the received internal tire pressure parameters, if so, directly analyzes whether the tire pressure is normal, if not, determines an error, and if the error is too large, executes a subsequent pulse signal analysis center to perform abnormality determination in the following specific mode:
calibrating external tire pressure parameters to WT i Calibrating the internal tire pressure parameter to be NT i Wherein i represents different detected objects;
determining WT i Whether or not it satisfies: WT (WT) i ＝NT i If yes, determining the tire pressure parameter WT i Or NT i If the tire pressure standard is met, not performing any processing, and if the tire pressure standard is not met, generating a tire pressure abnormal signal and displaying the tire pressure abnormal signal through a display end;
determining WT i And NT i Whether or not it satisfies: WT i -NT i The I is more than Y1, wherein Y1 is a preset value, the specific value is drawn by an operator according to experience, if the specific value is met, the representative error is overlarge, the abnormality exists, an execution instruction is generated, a subsequent pulse signal analysis center is executed, and if the specific value is not met, the WT is judged i If the tire pressure standard is met, generating a tire pressure abnormal signal and displaying the tire pressure abnormal signal through a display end if the tire pressure standard is not met, wherein the tire pressure standard is a set of preset intervals, and the specific value of the tire pressure standard is drawn by an operator according to experience;
specifically, in normal analysis process, only need monitor a set of tire pressure parameter can, but to some old cars or old cars, inside tire pressure sensor probably has a little problem, when ageing or electric quantity are not enough, just lead to very easily that produced inside tire pressure parameter exists the error, its precision has very big problem, so through foretell analysis method, alright preliminary judgement to whether there is the problem to the tire pressure sensor, promote the comprehensiveness of tire pressure testing process, whether there is the problem to the corresponding target tire pressure that waits to detect not only can confirm, still can discern whether inside tire pressure sensor work normally.
The pulse signal analysis center collects the wireless modulation pulse signals for generating the internal tire pressure parameters, then collects the pulse signals generated in the past by the tire pressure sensor from the vehicle system, analyzes the pulse signals generated in the past, and determines a standard peak value interval and a standard slope interval, wherein the pulse signal waveforms are shown in fig. 2, and the specific mode for determining the interval is as follows:
s1, constructing waveforms generated by pulse signals generated by the tire pressure sensor in the past, and sequentially confirming peak values FZ generated by each group of waveforms k Valley value GZ1 on both left and right sides k And GZ2 k Wherein k represents different waveforms, usingObtaining a slope parameter XL1 generated between a peak value and a different valley value k And XL2 k Wherein T1 is FZ k With GZ1 k Time difference between, wherein T2 is FZ k With GZ2 k Time difference between two sets of slope parameters XL1 k And XL2 k Selecting a maximum value, and calibrating the selected maximum value as a standard slope BX k ；
S2, generating a plurality of groups of peak values FZ by different waveforms k Standard slope BX k The mean processing is performed to obtain a standard peak B1 and a standard parameter B2, which then satisfy:the waveform of (2) is calibrated to be a standard waveform, otherwise, the following conditions are satisfied:or->The waveform of (2) is calibrated to be a floating waveform, wherein X1 and X2 are preset values, and the specific values are drawn by an operator according to experience;
s3, determining a plurality of standard waveform internal peak values FZ k Constructing standard peak intervals, and determining standard slopes BX in a plurality of standard waveforms k Constructing a standard slope interval;
s4, reconfirming the wireless modulation pulse signal for generating the internal tire pressure parameter, then confirming the waveform generated by the wireless modulation pulse signal, confirming the peak value of the waveform, and formulating the peak value as a pulse peak value, and then adopting the same mode in the step S1, confirming the standard slope of the waveform of the wireless modulation pulse signal, and formulating the standard slope as a pulse slope;
s5, confirming whether pulse peak values and pulse slopes meet the following conditions: the pulse peak value epsilon standard peak value interval and the pulse slope epsilon standard slope interval are satisfied, and represent that the wireless modulation pulse signal generated by the tire pressure sensor is a normal fluctuation signal, and simultaneously generate a rotation speed test signal and transmit the rotation speed test signal to a periodic rotation speed analysis center;
specifically, in order to confirm whether the sensor in the corresponding tire works normally, it is necessary to analyze the difference between the generated signal and the generated signal, confirm the trough and the peak generated between different signals in the generated signal, preferentially remove the signal with severe fluctuation, determine the corresponding standard waveform after removing, and the similarity of the determined standard waveforms is very high, determine the corresponding standard interval from the standard waveforms, analyze the peak and the standard value generated by the waveform, determine whether the waveform belongs to the corresponding standard interval, if the waveform belongs to the waveform, then represent that the waveform generated by the waveform meets the corresponding standard, if the waveform does not belong to the waveform, then represent that the waveform generated by the waveform does not meet the corresponding standard, then the tire pressure sensor has the corresponding problem, display the corresponding signal, allow an external person to check the tire pressure sensor in time, determine whether the tire pressure sensor has a problem and replace the tire pressure in time, and promote the comprehensiveness of the system in the tire pressure detection process.
The periodic rotation speed analysis center directly extracts wheel rotation speed parameters generated in the past 6 hours from the vehicle machine system according to the rotation speed test signal, marks different wheel rotation speed parameters differently, determines the number of the tire to be tested, marks the wheel rotation speed parameters generated by the tire to be tested as parameters to be checked, and detects whether the parameters to be checked are normal or not, and the specific mode is as follows:
the average value of a plurality of groups of parameters to be checked generated in the past 6 hours of the tyre to be tested is processed, the processed average value is marked as HD, the wheel rotating speed parameters generated by other wheels are determined, the average value of the rotating speed parameters of the wheels corresponding to the wheels is determined, and the processed average value is marked as JD t Wherein t represents different wheels;
relocking several sets of JDs t Whether the analysis HD satisfies the following criteria: and if the value of Y2 is not met, the situation that false alarm exists in the tire pressure detection process of the tire to be tested is represented, the generated value is inaccurate, possibly caused by the temperature of the tire or other factors, and no processing is needed.
Specifically, if the tire pressure of the corresponding tire is too low or too high, in the normal rotation process, if the tire pressure of the corresponding tire is too low compared with that of other tires, the generated rotating speed is faster, the whole tire is smaller, so that the rotating speed is faster, otherwise, the same reason is the same, in the normal analysis process, if the rotating speed of the corresponding tire is severely deviated, the corresponding tire is represented to have a tire pressure abnormal signal, the corresponding tire pressure abnormal signal is processed in time, and in the tire pressure detection process, the detection process is more comprehensive, and the effect is better.
Example two
A tire pressure detecting method, comprising the steps of:
step one, collecting tire pressure parameters generated by a tire pressure sensor and tire pressure parameters obtained by external detection, judging whether the two groups of tire pressure parameters are consistent, if so, directly analyzing whether the tire pressure is normal, if not, determining an error, and if the error is too large, executing a subsequent pulse signal analysis center;
step two, a pulse signal analysis center collects the wireless modulation pulse signals for generating the internal tire pressure parameters, then the pulse signals generated by the tire pressure sensor are collected from the vehicle system, the pulse signals generated by the tire pressure sensor are analyzed, a standard peak value interval and a standard slope interval are determined, the wireless modulation pulse signals for generating the internal tire pressure parameters are reconfirmed, whether the peak value and the slope generated by the pulse signals meet corresponding standard conditions or not is judged, if yes, the subsequent test processing is carried out, and if not, the sensor abnormal signals are directly generated and displayed;
and thirdly, directly extracting wheel rotation speed parameters generated in the past 6 hours from a vehicle machine system, marking different wheel rotation speed parameters differently, determining the number of the tire to be tested, calibrating the wheel rotation speed parameters generated by the tire to be tested as parameters to be checked, detecting whether the parameters to be checked are normal, and judging whether the tire pressure of the tire to be tested is normal.
Some of the data in the above formulas are numerical calculated by removing their dimensionality, and the contents not described in detail in the present specification are all well known in the prior art.
The above embodiments are only for illustrating the technical method of the present invention and not for limiting the same, and it should be understood by those skilled in the art that the technical method of the present invention may be modified or substituted without departing from the spirit and scope of the technical method of the present invention.
Claims (6)
1. A tire pressure detecting system, characterized by comprising:
the tire pressure parameter acquisition end acquires the tire pressure parameters generated by the tire pressure sensor and the tire pressure parameters obtained by external detection, marks the tire pressure parameters obtained by external detection as external tire pressure parameters, marks the tire pressure parameters generated by the tire pressure sensor as internal tire pressure parameters, and transmits the external tire pressure parameters and the internal tire pressure parameters to the tire pressure abnormality determination end;
the tire pressure abnormality judging end judges whether the two groups of tire pressure parameters are consistent through the received external tire pressure parameters and the received internal tire pressure parameters, if so, whether the tire pressure is normal is directly analyzed, if not, an error is determined, and if the error is overlarge, a subsequent pulse signal analysis center is executed;
the pulse signal analysis center collects the wireless modulation pulse signals for generating the internal tire pressure parameters, then collects the pulse signals generated in the past by the tire pressure sensor from the vehicle system, analyzes the pulse signals generated in the past, determines a standard peak value interval and a standard slope interval, and judges whether the tire pressure sensor is normal or not.
2. The tire pressure detecting system according to claim 1, wherein the tire pressure abnormality determining terminal determines whether two sets of tire pressure parameters are identical in a specific manner as follows:
calibrating external tire pressure parameters to WT i Calibrating the internal tire pressure parameter to be NT i Wherein i represents different detected objects;
determining WT i Whether or not it satisfies: WT (WT) i ＝NT i If yes, determine the tire pressure parameterNumber WT i Or NT i If the tire pressure standard is met, not performing any processing, and if the tire pressure standard is not met, generating a tire pressure abnormal signal and displaying the tire pressure abnormal signal through a display end;
determining WT i And NT i Whether or not it satisfies: WT i -NT i Y1 is larger than Y1, wherein Y1 is a preset value, if yes, representing that the error is overlarge, an abnormality exists, generating an execution instruction, executing a subsequent pulse signal analysis center, and if not, judging the WT i If the tire pressure standard is met, not performing any processing, and if the tire pressure standard is not met, generating a tire pressure abnormal signal and displaying the tire pressure abnormal signal through a display end, wherein the tire pressure standard is a set of preset intervals.
3. The tire pressure detecting system according to claim 1, wherein the pulse signal analysis center determines whether the tire pressure sensor is normal in the following specific manner:
s1, constructing waveforms generated by pulse signals generated by the tire pressure sensor in the past, and sequentially confirming peak values FZ generated by each group of waveforms k Valley value GZ1 on both left and right sides k And GZ2 k Wherein k represents different waveforms, usingObtaining a slope parameter XL1 generated between a peak value and a different valley value k And XL2 k Wherein T1 is FZ k With GZ1 k Time difference between, wherein T2 is FZ k With GZ2 k Time difference between two sets of slope parameters XL1 k And XL2 k Selecting a maximum value, and calibrating the selected maximum value as a standard slope BX k ；
S2, generating a plurality of groups of peak values FZ by different waveforms k Standard slope BX k The mean processing is performed to obtain a standard peak B1 and a standard parameter B2, which then satisfy:the waveform of (2) is calibrated to be a standard waveform, otherwise, the following conditions are satisfied:or->The waveform of (2) is marked as a floating waveform, wherein X1 and X2 are both preset values;
s3, determining a plurality of standard waveform internal peak values FZ k Constructing standard peak intervals, and determining standard slopes BX in a plurality of standard waveforms k Constructing a standard slope interval;
s4, reconfirming the wireless modulation pulse signal for generating the internal tire pressure parameter, then confirming the waveform generated by the wireless modulation pulse signal, confirming the peak value of the waveform, and formulating the peak value as a pulse peak value, and then adopting the same mode in the step S1, confirming the standard slope of the waveform of the wireless modulation pulse signal, and formulating the standard slope as a pulse slope;
s5, confirming whether pulse peak values and pulse slopes meet the following conditions: the pulse peak value epsilon standard peak value interval and the pulse slope epsilon standard slope interval represent that the wireless modulation pulse signal generated by the tire pressure sensor is a normal fluctuation signal if both the pulse peak value epsilon standard peak value interval and the pulse slope epsilon standard slope interval are met, meanwhile, a rotating speed test signal is generated and transmitted to a periodic rotating speed analysis center, if one of the pulse peak value epsilon standard peak value interval and the pulse slope epsilon standard slope interval is not met or not met, the tire pressure sensor is possibly abnormal, a sensor abnormal signal is generated, and the generated sensor abnormal signal is transmitted to an external display end for being checked by external personnel.
4. The tire pressure detecting system according to claim 1, further comprising a periodic rotational speed analysis center for directly extracting the rotational speed parameters of the wheel generated in the past 6 hours from the vehicle system according to the rotational speed test signal, and for marking different rotational speed parameters of the wheel differently, determining the number of the tire to be tested, calibrating the rotational speed parameters of the wheel generated by the tire to be tested as the parameters to be checked, and detecting whether the parameters to be checked are normal.
5. The tire pressure detecting system according to claim 4, wherein the periodic rotation speed analysis center detects whether the parameter to be checked is normal in the following specific manner:
the average value of a plurality of groups of parameters to be checked generated in the past 6 hours of the tyre to be tested is processed, the processed average value is marked as HD, the wheel rotating speed parameters generated by other wheels are determined, the average value of the rotating speed parameters of the wheels corresponding to the wheels is determined, and the processed average value is marked as JD t Wherein t represents different wheels;
relocking several sets of JDs t Whether the analysis HD satisfies the following criteria: and if the value of Y2 is not met, representing that the tire to be tested has false alarm in the tire pressure detection process, the generated value is inaccurate, possibly caused by the temperature of the tire or other factors, and no processing is needed.
6. A tire pressure detecting method, which is applied to a tire pressure detecting system according to any one of claims 1 to 5, comprising the steps of:
step one, collecting tire pressure parameters generated by a tire pressure sensor and tire pressure parameters obtained by external detection, judging whether the two groups of tire pressure parameters are consistent, if so, directly analyzing whether the tire pressure is normal, if not, determining an error, and if the error is too large, executing a subsequent pulse signal analysis center;
step two, a pulse signal analysis center collects the wireless modulation pulse signals for generating the internal tire pressure parameters, then the pulse signals generated by the tire pressure sensor are collected from the vehicle system, the pulse signals generated by the tire pressure sensor are analyzed, a standard peak value interval and a standard slope interval are determined, the wireless modulation pulse signals for generating the internal tire pressure parameters are reconfirmed, whether the peak value and the slope generated by the pulse signals meet corresponding standard conditions or not is judged, if yes, the subsequent test processing is carried out, and if not, the sensor abnormal signals are directly generated and displayed;
and thirdly, directly extracting wheel rotation speed parameters generated in the past 6 hours from a vehicle machine system, marking different wheel rotation speed parameters differently, determining the number of the tire to be tested, calibrating the wheel rotation speed parameters generated by the tire to be tested as parameters to be checked, detecting whether the parameters to be checked are normal, and judging whether the tire pressure of the tire to be tested is normal.
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| CN202311665975.1A CN117755019A (en) | 2023-12-06 | 2023-12-06 | Tire pressure detection method and system |
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