Novel brake sensor and operation method thereof

Abstract

The novel brake sensor comprises a shell, the outer surface of the shell is sleeved with a pressing ring and a pressing disc, and a circuit board assembly is arranged on the side, close to the pressing disc, of the pressing ring. Meanwhile, the positioning pin structure between the shell and the circuit board assembly ensures that all parts are accurately positioned in the SMT process, the size precision of a finished product is ensured, the welding mode of the pressing ring and the shell saves the internal space, adverse effects on the strength and performance of the pressing disc are avoided, the sealing ring ensures the overall sealing performance of the sensor, and the service life of the sensor is prolonged. In addition, the via hole welding mode of the circuit board assembly and the circuit board assembly support enhances the structural strength and reliability, compared with a glue connection mode, the brake sensor can better meet the requirement for long-time work of an automobile in an extreme environment, it is ensured that the brake sensor stably and reliably operates, and the service life of the brake sensor is prolonged. Accurate load monitoring data are provided for an automobile braking system, driving safety is guaranteed, and therefore the stability and the overall practicability of the brake sensor are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of automobiles, and particularly relates to a novel brake sensor and an operation method thereof. Background Art

[0002] Traditional braking systems transfer the driver's braking demand from the brake pedal to the wheels through a hydraulic master cylinder, hydraulic pipes, and hydraulic-driven brake calipers. Different from this, the electro-mechanical brake (EMB) directly drives the braking through an electric device, so there is no need to install hydraulic pipelines or repair the hydraulic system. In addition, since the space requirement in the engine compartment is reduced, the control software can be integrated into any appropriate vehicle control with an appropriate safety level and sufficient computing power. In the case of autonomous driving, the EMB is considered to be faster than the traditional hydraulic system, so there is more time for calculating autonomous driving functions. Finally, since the EMB allows true zero drag, this will be beneficial to the driving range of electric vehicles and reduce carbon dioxide.

[0003] However, the existing brake sensors are costly and have poor stability, which in turn leads to a reduction in the overall practicality of the brake sensors. Summary of the Invention

[0004] The purpose of the present invention is to provide a novel brake sensor to solve the problems of high cost and poor stability of the existing brake sensors as mentioned in the above background art, which in turn leads to a reduction in the overall practicality of the brake sensors.

[0005] In a first aspect, the present invention provides a novel brake sensor, comprising:

[0006] It includes a housing, a pressure ring and a pressure plate are sleeved on the outer surface of the housing. A circuit board assembly is provided on one side of the pressure ring close to the pressure plate. A circuit board assembly bracket is detachably installed on one side surface of the pressure plate close to the housing. A circuit board assembly is provided on one side surface of the circuit board assembly bracket close to the housing. A connector is provided on one side surface of the circuit board assembly close to the housing, and a plurality of spring pins are fixedly installed on the connector.

[0007] In a possible implementation manner of the first aspect, the outer surface of the spring pin is covered with copper alloy.

[0008] In a possible implementation manner of the first aspect, a notch is opened on the housing, and the spring pin is used in cooperation with the notch.

[0009] In a possible implementation manner of the first aspect, a sealing ring is provided on the inner side wall of the pressure plate, and the sealing ring is used in cooperation with the housing.

[0010] In a possible implementation of the first aspect, glass glue and aluminum wire protection glue are provided on the pressure plate, and aluminum wires are installed on the pressure plate.

[0011] In a possible implementation of the first aspect, a plurality of positioning holes are provided on both the circuit board assembly and the circuit board assembly bracket, and strain gauges are provided on the circuit board assembly.

[0012] Compared with the prior art, the present invention provides a new type of brake sensor, which has the following beneficial effects:

[0013] First, during use, the housing provides protection for internal components. At the same time, the positioning pin structure between the housing and the circuit board assembly ensures accurate positioning of each component during the SMT (Surface Mount Technology) process, guaranteeing the dimensional accuracy of the finished product. The welding method of the pressure ring and the housing saves internal space and avoids adverse effects on the strength and performance of the pressure plate. The sealing ring ensures the overall sealing of the sensor, preventing external factors from interfering with internal components and signal transmission. In addition, the via welding method of the circuit board assembly and the circuit board assembly bracket enhances the structural strength and reliability. Compared with the method of using glue connection, it can better meet the requirements of the vehicle working in extreme environments for a long time, ensuring the stable and reliable operation of the brake sensor, providing accurate load monitoring data for the vehicle braking system, and ensuring driving safety, thereby improving the stability and overall practicality of the brake sensor.

[0014] Second, first install the overall device of the brake sensor at the corresponding position of the vehicle braking system to ensure its close cooperation with key components such as the brake shaft. When the vehicle brakes, the brake shaft will generate an axial load change, which will be transmitted to the pressure plate. The pressure plate will deform, and the strain gauge pasted on the pressure plate will sense this deformation. The resistance value of the strain gauge will change with the deformation, and its change amount is in a certain proportional relationship with the applied pressure, thereby converting the pressure signal into an electrical signal. This electrical signal is transmitted to the circuit board assembly through the aluminum wire. On the circuit board assembly, the signal is processed and amplified, and then the processed signal is transmitted to an external device (such as the vehicle's electronic control unit) through the spring pin to realize real-time monitoring of the axial load of the brake shaft.

[0015] In the second aspect, the present invention provides an operation method for the new type of brake sensor, including:

[0016] Collect physical parameter data of the installation environment of the brake sensor. Based on the physical parameter data, set the monitoring control parameters corresponding to the environmental monitoring device. Based on the monitoring control parameters, use the environmental monitoring device to collect data on the working environment of the brake sensor to obtain environmental monitoring data;

[0017] Perform data parsing and processing on the environmental monitoring data to obtain key environmental parameters, extract environmental impact characteristics related to each structural component of the brake sensor from the key environmental parameters, analyze the component attributes corresponding to each structural component of the brake sensor, and calculate the performance stability of the brake sensor by combining the environmental impact characteristics and the component attributes;

[0018] Based on the performance stability, plan the performance optimization strategy corresponding to the brake sensor, calculate the electrical connection stability index between the strain gauge and the connector inside the brake sensor, edit the operation calibration program of the brake sensor by combining the electrical connection stability index and the performance optimization strategy, and generate the operation method corresponding to the brake sensor based on the operation calibration program.

[0019] In a possible implementation manner of the second aspect, setting the monitoring control parameters corresponding to the environmental monitoring device based on the physical parameter data includes:

[0020] Identify the parameter type identifier corresponding to the physical parameter data, and obtain the device monitoring unit corresponding to the environmental monitoring device;

[0021] Analyze the unit performance characteristics corresponding to the device monitoring unit, and query the monitoring mechanism of the environmental monitoring device;

[0022] Based on the monitoring mechanism, identify the data reliability correlation characteristics in the unit performance characteristics;

[0023] Perform vectorization processing on the parameter type identifier and the data reliability correlation characteristics respectively to obtain a parameter type identifier vector and a correlation characteristic vector;

[0024] Calculate the vector matching index between the parameter type identifier vector and the correlation characteristic vector;

[0025] Based on the vector matching index, determine the monitoring unit to be optimized in the device monitoring unit;

[0026] Set the unit adjustment parameters corresponding to the monitoring unit to be optimized according to the physical parameter data;

[0027] Generate the monitoring control parameters corresponding to the environmental monitoring device based on the unit adjustment parameters.

[0028] In a possible implementation manner of the second aspect, performing data parsing and processing on the environmental monitoring data to obtain key environmental parameters includes:

[0029] Analyze the data source identifier corresponding to the environmental monitoring data, and determine the parsing strategy of the environmental monitoring data based on the data source identifier;

[0030] Perform hierarchical parsing on the environmental monitoring data according to the parsing strategy to obtain multi-level parsed data;

[0031] Perform a data verification operation on the multi-level parsed data to obtain verified parsed data;

[0032] Perform parameter extraction on the verified parsed data to obtain key environmental parameters.

[0033] In a possible implementation manner of the second aspect, calculating the electrical connection stability index between the strain gauge inside the brake sensor and the connector includes:

[0034] Collect the connection electrical parameters between the strain gauge inside the brake sensor and the connector;

[0035] Combined with the connection electrical parameters and the preset parameter thresholds, the connection deviation index between the strain gauge inside the brake sensor and the connector can be calculated through the following formula:

[0036]

[0037] where A represents the connection deviation index between the strain gauge inside the brake sensor and the connector, B a represents the a-th parameter value in the connection electrical parameters, B , a represents the reference threshold corresponding to the a-th parameter value in the connection electrical parameters in the preset parameter thresholds, a represents the serial number of the connection electrical parameters, and n represents the number of connection electrical parameters;

[0038] Calculate the electrical connection stability index between the strain gauge inside the brake sensor and the connector according to the connection deviation index.

[0039] It can be seen that by setting the monitoring control parameters corresponding to the environmental monitoring device based on the physical parameter data, the present invention can improve the monitoring accuracy of subsequent environmental monitoring data, more accurately reflect the real situation of the working environment of the brake sensor, and help optimize the monitoring process, reduce unnecessary resource consumption and monitoring duration, and improve the monitoring efficiency and reliability. By performing data analysis and processing on the environmental monitoring data, the present invention can effectively extract key information that has a substantial impact on the operation of the brake sensor, providing a data basis for subsequent accurate analysis. By planning the performance optimization strategy corresponding to the brake sensor based on the performance stability, the present invention can formulate appropriate improvement measures according to the performance status of the sensor, providing guidance for subsequent operations. By calculating the electrical connection stability index between the strain gauge and the connector inside the brake sensor, the present invention can accurately judge the reliability of the key electrical connection parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0041] Figure 1 is a schematic three-dimensional structure diagram of a novel brake sensor proposed in an embodiment of the present invention;

[0042] Figure 2 is a schematic cross-sectional view of the structure of a novel brake sensor proposed in an embodiment of the present invention;

[0043] Figure 3 is a schematic exploded view of the structure of a novel brake sensor proposed in an embodiment of the present invention;

[0044] Figure 4 is a flowchart of an operation method of a novel brake sensor proposed in an embodiment of the invention;

[0045] In the figure: 1, housing; 2, retaining ring; 3, spring pin; 4, connector; 5, circuit board assembly; 6, strain gauge; 7, circuit board assembly bracket; 8, pressure plate; 9, sealing ring; 10, glass glue; 11, aluminum wire protection glue; 12, aluminum wire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0047] Please refer toFigure 1 , which is a schematic three-dimensional structure diagram of a novel brake sensor proposed by the present invention, includes a housing 1. The housing 1 provides protection and support for the entire device. A pressure ring 2 and a pressure plate 8 are sleeved on the outer surface of the housing 1.

[0048] Please refer to Figure 2 , which is a schematic cross-sectional structure diagram of a novel brake sensor proposed by an embodiment of the present invention. On one side of the pressure ring 2 close to the pressure plate 8, there is a circuit board assembly 5, which provides support and an installation basis for circuit components. On one side surface of the pressure plate 8 close to the housing 1, a circuit board assembly bracket 7 is detachably installed, which is convenient for the installation and maintenance of the circuit board assembly 5. On one side surface of the circuit board assembly bracket 7 close to the housing 1, there is a circuit board assembly 5. On one side surface of the circuit board assembly 5 close to the housing 1, there is a connector 4. A plurality of spring pins 3 are fixedly installed on the connector 4. The spring pins 3 can transmit the received signals to external devices (such as the electronic control unit of a vehicle), so as to realize the real-time monitoring of the axial load of the brake shaft.

[0049] Please refer to Figure 3 , which is a schematic exploded structure diagram of a novel brake sensor proposed by an embodiment of the present invention. A notch is provided on the housing 1. The spring pins 3 are used in combination with the notch, which is convenient for the connection operation between the spring pins 3 and external devices. A sealing ring 9 is provided on the inner side wall of the pressure plate 8. The sealing ring 9 is used in combination with the housing 1. The sealing ring 9 ensures the overall sealing performance of the sensor, prevents external factors from interfering with internal components and signal transmission. Glass glue 10 and aluminum wire protection glue 11 are provided on the pressure plate 8. The glass glue 10 may be used to paste or fix related components. Compared with the connection method using glue, it can better meet the requirements of the vehicle working in extreme environments for a long time, ensure the stable and reliable operation of the brake sensor, provide accurate load monitoring data for the vehicle braking system, and ensure driving safety. The aluminum wire protection glue 11 plays a protective role for the aluminum wire 12. And an aluminum wire 12 is installed on the pressure plate 8, which is used to transmit electrical signals or power, etc. A plurality of positioning holes are provided on both the circuit board assembly 5 and the circuit board assembly bracket 7, which helps to achieve accurate positioning during the installation process and ensure the relative position relationship between components. A strain gauge 6 is provided on the circuit board assembly 5, which can sense physical quantity changes such as pressure and convert them into electrical signals to realize functions such as measurement.

[0050] Working principle and usage process of a new type of brake sensor of the present invention: During use, first install the overall device of the brake sensor at the corresponding position of the vehicle braking system to ensure its close cooperation with key components such as the brake shaft. When the vehicle brakes, an axial load change will occur on the brake shaft, and this change will be transmitted to the pressure plate. The pressure plate will deform, and the strain gauge 6 pasted on the pressure plate 8 will sense this deformation. The resistance value of the strain gauge 6 will change with the deformation, and the change amount is in a certain proportional relationship with the pressure received, thereby converting the pressure signal into an electrical signal. This electrical signal is transmitted to the circuit board assembly 5 through the aluminum 12. On the circuit board assembly 5, the signal is processed and amplified, and then the processed signal is transmitted to an external device (such as the electronic control unit of the vehicle) through the spring pin 3 to achieve real-time monitoring of the axial load of the brake shaft. During the whole process, the housing 1 provides protection for the internal components. At the same time, the positioning pin structure between the housing 1 and the circuit board assembly 5 ensures the precise positioning of each component during the SMT (Surface Mount Technology) process, guaranteeing the dimensional accuracy of the finished product. The welding method of the retaining ring 2 and the housing 1 saves internal space and avoids having an adverse impact on the strength and performance of the pressure plate 8. The sealing ring 9 ensures the overall sealing of the sensor, preventing external factors from interfering with the internal components and signal transmission. In addition, the via-hole welding method of the circuit board assembly 5 and the circuit board assembly bracket 7 enhances the structural strength and reliability. Compared with the method of connecting with glue, it can better meet the requirements of the vehicle working in extreme environments for a long time, ensuring the stable and reliable operation of the brake sensor, providing accurate load monitoring data for the vehicle braking system, and guaranteeing driving safety.

[0051] Refer to Figure 4 As shown, it is an operation method of a new type of brake sensor proposed in an embodiment of the present invention, including:

[0052] S1. Collect physical parameter data of the installation environment of the brake sensor. Based on the physical parameter data, set the monitoring and control parameters corresponding to the environmental monitoring device. Based on the monitoring and control parameters, use the environmental monitoring device to collect data on the working environment of the brake sensor to obtain environmental monitoring data.

[0053] By setting the monitoring and control parameters corresponding to the environmental monitoring device based on the physical parameter data, the present invention can improve the monitoring accuracy of subsequent environmental monitoring data, more accurately reflect the real situation of the working environment of the brake sensor, and help optimize the monitoring process, reduce unnecessary resource consumption and monitoring duration, and improve the monitoring efficiency and reliability.

[0054] Among them, the physical parameter data of the installation environment of the brake sensor refers to the physical quantity information related to the environment such as temperature, humidity, vibration amplitude, etc. in the working environment where the brake sensor is located. The monitoring control parameters are various set values corresponding to the environmental monitoring device for regulating the monitoring operation to obtain ideal monitoring data, such as parameters like sampling frequency, sensor sensitivity, and data acquisition range. The environmental monitoring data is the data information obtained by the environmental monitoring device after monitoring the working environment of the brake sensor. Further, the acquisition of the physical parameter data of the installation environment of the brake sensor can be achieved through corresponding acquisition devices, such as temperature and humidity sensors, acceleration sensors, etc.

[0055] As an embodiment of the present invention, setting the monitoring control parameters corresponding to the environmental monitoring device based on the physical parameter data includes:

[0056] Identify the parameter type identifier corresponding to the physical parameter data, and obtain the device monitoring unit corresponding to the environmental monitoring device;

[0057] Analyze the unit performance characteristics corresponding to the device monitoring unit, and query the monitoring mechanism of the environmental monitoring device;

[0058] Based on the monitoring mechanism, identify the data reliability correlation characteristics in the unit performance characteristics;

[0059] Perform vectorization processing on the parameter type identifier and the data reliability correlation characteristics respectively to obtain a parameter type identifier vector and a correlation characteristic vector;

[0060] Calculate the vector matching index between the parameter type identifier vector and the correlation characteristic vector;

[0061] Based on the vector matching index, determine the monitoring unit to be optimized in the device monitoring unit;

[0062] According to the physical parameter data, set the unit adjustment parameters corresponding to the monitoring unit to be optimized;

[0063] Based on the unit adjustment parameters, generate the monitoring control parameters corresponding to the environmental monitoring device.

[0064] Among them, the parameter type identifier is a flag used to distinguish different types of physical parameters corresponding to the physical parameter data; the device monitoring unit is a functional module in the environmental monitoring device that undertakes specific monitoring tasks, the unit performance characteristics are the performance characteristics and functional attributes possessed by the device monitoring unit, the monitoring mechanism is the operating rule according to which the environmental monitoring device conducts monitoring work, the parameter type identifier vector and the correlation characteristic vector are respectively the mathematical representation forms of the parameter type identifier and the data reliability correlation characteristic in the form of vectors for quantitative expression and analysis, the vector matching index represents the degree of fit between the parameter type identifier vector and the correlation characteristic vector, the monitoring unit to be optimized is the part of the device monitoring unit that needs to adjust parameters, and the unit adjustment parameter is the specific adjustment setting content corresponding to the monitoring unit to be optimized.

[0065] Optionally, the parameter type identifier corresponding to the physical parameter data can be determined through a data recognition algorithm, and the device monitoring unit corresponding to the environmental monitoring device can be obtained from the device structure manual; the unit performance characteristics corresponding to the device monitoring unit can be analyzed through a performance profiling method; the query of the monitoring mechanism of the environmental monitoring device can be completed according to the device technical data; by querying the key influencing factors in the monitoring mechanism and based on the key influencing factors, the data reliability correlation characteristics in the unit performance characteristics can be identified. For example, in a humidity monitoring unit based on the capacitance principle, the distance stability between the capacitor plates is a key influencing factor related to the reliability of humidity data. Then, among the unit performance characteristics related to the capacitor plates in the device monitoring unit, the characteristics related to the control of the plate distance belong to the data reliability correlation characteristics; the parameter type identifier and the data reliability correlation characteristic can be vectorized respectively through a specific coding rule to obtain a parameter type identifier vector and a correlation characteristic vector; the vector matching index between the parameter type identifier vector and the correlation characteristic vector can be calculated through the Pearson correlation coefficient algorithm; when the vector matching index is greater than the preset matching index, the monitoring unit to be optimized in the device monitoring unit is determined. The preset matching index can be set to 0.65 or can be flexibly set according to the actual application scenario; according to the physical parameter data, the unit adjustment parameter corresponding to the monitoring unit to be optimized is set. If the physical parameter data indicates that the environmental temperature changes violently, when setting the parameters of the temperature monitoring unit, the sensor sensitivity can be appropriately increased to 0.5 °C to more sensitively capture the subtle changes in temperature. If the physical parameter data shows that the electromagnetic radiation intensity is high, when the electromagnetic radiation intensity exceeds the normal range, the signal filtering threshold can be appropriately reduced to enhance the capture ability of weak abnormal electromagnetic signals, and at the same time, the data acquisition frequency is adjusted to 20 Hz to more timely monitor the dynamic changes in the electromagnetic radiation intensity.

[0066] Based on the monitoring control parameters, the environmental monitoring device is used to collect data on the working environment of the brake sensor to obtain environmental monitoring data. The processing process is as follows: First, the environmental monitoring device is started, and each monitoring unit starts running according to the set monitoring control parameters. For example, the temperature sensor collects environmental temperature data according to the set sensitivity, the humidity sensor collects humidity data, the pressure sensor obtains pressure data, the acceleration sensor records vibration amplitude data, the electromagnetic radiation sensor detects electromagnetic radiation intensity data, etc. Then, the data collected by each monitoring unit is transmitted to the data processing center for integration and processing, and finally environmental monitoring data is obtained.

[0067] S2. Perform data parsing and processing on the environmental monitoring data to obtain key environmental parameters. Extract environmental impact characteristics related to each structural component of the brake sensor from the key environmental parameters, and analyze the component attributes corresponding to each structural component of the brake sensor. Combine the environmental impact characteristics and the component attributes to calculate the performance stability of the brake sensor.

[0068] By performing data parsing and processing on the environmental monitoring data, the present invention can effectively extract key information that has a substantial impact on the operation of the brake sensor, providing a data basis for subsequent accurate analysis. Among them, the key environmental parameters are the core data in the environmental monitoring data that are used to characterize the environmental state, have important indicative significance for environmental quality and the ecosystem, and can reflect the environmental change trend and characteristics.

[0069] As an embodiment of the present invention, the performing data parsing and processing on the environmental monitoring data to obtain key environmental parameters includes:

[0070] Analyze the data source identifier corresponding to the environmental monitoring data, and based on the data source identifier, determine the parsing strategy for the environmental monitoring data;

[0071] According to the parsing strategy, perform hierarchical parsing and processing on the environmental monitoring data to obtain multi-level parsing data;

[0072] Perform a data verification operation on the multi-level parsing data to obtain verified parsing data;

[0073] Perform parameter extraction processing on the verified parsing data to obtain key environmental parameters.

[0074] Among them, the data source identifier is a category label divided according to the sensor type or monitoring location of the environmental monitoring data collection, such as the source identifier of the in-vehicle temperature sensor, the source identifier of the out-of-vehicle humidity sensor, etc.; the parsing strategy is a targeted parsing process formulated based on different data source identifiers. For example, for in-vehicle temperature data, a parsing strategy combined with the in-vehicle space heat conduction model may be adopted; the multi-layer parsed data is different-level data results generated after hierarchical parsing of the environmental monitoring data according to the parsing strategy, such as temperature layer parsed data and humidity layer parsed data stratified based on sensor type; the verified parsed data is reliable data obtained by removing deviation data caused by sensor accuracy limitations or environmental instantaneous interference from the multi-layer parsed data.

[0075] Optionally, the data source identifier corresponding to the environmental monitoring data can be determined through a data traceability algorithm; based on the data source identifier, the parsing strategy of the environmental monitoring data can be determined by intelligent parsing software; according to the parsing strategy, a hierarchical parsing process can be carried out on the environmental monitoring data by means of a data processing module to obtain multi-layer parsed data; the Grubbs criterion can be used to perform data verification operations on the multi-layer parsed data to obtain verified parsed data; the principal component analysis algorithm can be used to perform parameter extraction processing on the accurately parsed data to obtain key environmental parameters.

[0076] By extracting environmental impact characteristics related to each structural component of the brake sensor from the key environmental parameters and analyzing the component attributes corresponding to each structural component of the brake sensor, the present invention can deeply explore the internal relationship between the environment and the components.

[0077] Among them, the environmental impact characteristic is a characteristic element in the key environmental parameters that has a specific effect on a specific structural component of the brake sensor, such as the impact characteristic of electromagnetic interference on the signal transmission of the circuit board assembly; the component attribute is the inherent physical and electrical characteristics of each structural component of the brake sensor, such as the anti-aging performance of the sealing ring and the anti-fatigue characteristic of the spring pin. Further, the extraction of environmental impact characteristics related to each structural component of the brake sensor from the key environmental parameters can be achieved by means of a feature extraction algorithm, such as the linear discriminant analysis (LDA) algorithm; the analysis of the component attributes corresponding to each structural component of the brake sensor can be realized by relying on the component design blueprint and the material property database.

[0078] As an embodiment of the present invention, calculating the performance stability of the brake sensor by combining the environmental impact characteristics and the component attributes includes:

[0079] Quantify the environmental impact characteristics to obtain environmental impact characteristic values;

[0080] Normalize the environmental impact eigenvalue to obtain a set of impact characteristic values;

[0081] Determine the performance sensitivity coefficient corresponding to the component attribute, and construct a sensitivity coefficient vector corresponding to the performance sensitivity coefficient;

[0082] Normalize the sensitivity coefficient vector to obtain a target sensitivity coefficient vector;

[0083] Combine the set of impact characteristic values and the target sensitivity coefficient vector to construct an environmental component interaction matrix corresponding to the brake sensor;

[0084] Sum up the environmental component interaction matrix to obtain an environmental impact comprehensive vector corresponding to the brake sensor;

[0085] Calculate the performance stability of the brake sensor according to the environmental impact comprehensive vector.

[0086] Among them, the set of impact characteristic values is a numerical set used to uniformly measure the relative degree of each environmental impact characteristic after the environmental impact eigenvalue is normalized. The performance sensitivity coefficient is a coefficient corresponding to the component attribute that reflects its sensitivity to the overall performance. The sensitivity coefficient vector is a vector composed of the performance sensitivity coefficients arranged in order. The target sensitivity coefficient vector is a vector obtained by normalizing the sensitivity coefficient vector so that the sum of its elements is 1. The environmental component interaction matrix is a matrix corresponding to the brake sensor constructed by combining the set of impact characteristic values and the target sensitivity coefficient vector, which reflects the intensity of the interaction between the environment and the component. The environmental impact comprehensive vector is obtained by summing up the environmental component interaction matrix, and it is a vector corresponding to the brake sensor that comprehensively reflects the degree of environmental impact in all aspects.

[0087] Furthermore, the environmental impact characteristics can be quantitatively processed through a professional data acquisition and conversion model to obtain environmental impact characteristic values. For example, for the temperature impact characteristic in the environment, real-time temperature data is collected using a temperature sensor, and then the corresponding quantitative value is calculated by combining the conversion formula related to the thermal expansion coefficient of the temperature and brake sensor materials. The environmental impact characteristic values can be normalized through a specific normalization algorithm formula to obtain a set of impact characteristic values, such as using the min-max normalization algorithm. Based on a large amount of experimental data and theoretical analysis, the performance sensitivity coefficient corresponding to the component attributes is determined. The sensitivity coefficient vector corresponding to the performance sensitivity coefficient can be constructed by arranging the performance sensitivity coefficients in an orderly manner. The sensitivity coefficient vector can be normalized through the vector element sum normalization calculation method to obtain the target sensitivity coefficient vector. Combining the set of impact characteristic values and the target sensitivity coefficient vector, the environmental component interaction matrix corresponding to the brake sensor can be constructed by multiplying and arranging the corresponding elements of the two through a matrix construction algorithm. Taking the comprehensive environmental impact vector as input data, it is input into a pre-trained performance stability calculation model to calculate the performance stability of the brake sensor. The performance stability calculation model is constructed based on a large amount of experimental data and theoretical analysis.

[0088] S3. Based on the performance stability, plan the performance optimization strategy corresponding to the brake sensor, calculate the electrical connection stability index between the strain gauge and the connector inside the brake sensor, combine the electrical connection stability index and the performance optimization strategy, edit the operation calibration program of the brake sensor, and generate the operation method corresponding to the brake sensor based on the operation calibration program.

[0089] The present invention formulates a performance optimization strategy corresponding to the brake sensor based on the performance stability, and can formulate appropriate improvement measures according to the performance status of the sensor to provide guidance for subsequent operations. By calculating the electrical connection stability index between the strain gauge and the connector inside the brake sensor, the present invention can accurately judge the reliability of the key electrical connection parts. Among them, the performance optimization strategy is a personalized improvement plan method for the brake sensor, and the electrical connection stability index is a quantitative index representing the firmness of the electrical connection between the strain gauge and the connector. Further, the planning steps of the performance optimization strategy corresponding to the brake sensor are as follows: evaluate and classify the performance stability, and divide different grade ranges such as high stability, medium stability, and low stability; according to different grade ranges, retrieve the corresponding performance optimization plan framework stored in the database; combine factors such as the specific model, service life, and application environment of the brake sensor to refine and adapt the plan framework to generate a customized performance optimization strategy. Among them, the evaluation and classification can be completed by comparing with a preset performance stability threshold; the plan framework covers general strategies in multiple aspects such as circuit optimization, component replacement, and parameter adjustment; the customized performance optimization strategy is a personalized improvement plan for a specific brake sensor. Optionally, data analysis software can be used to evaluate and classify the performance stability; the database can be established on a local server or in the cloud for quick query of the plan framework; the refinement and adaptation process can be carried out by combining expert experience and intelligent algorithms to ensure the effectiveness and feasibility of the strategy.

[0090] As an embodiment of the present invention, the calculation of the electrical connection stability index between the strain gauge and the connector inside the brake sensor includes:

[0091] Collect the connection electrical parameters between the strain gauge and the connector inside the brake sensor;

[0092] Combining the connection electrical parameters and the preset parameter threshold, the connection deviation index between the strain gauge and the connector inside the brake sensor can be calculated by the following formula:

[0093]

[0094] where A represents the connection deviation index between the strain gauge and the connector inside the brake sensor, B a represents the a-th parameter value in the connection electrical parameters, B , a represents the reference threshold corresponding to the a-th parameter value in the connection electrical parameters in the preset parameter threshold, a represents the serial number of the connection electrical parameters, and n represents the number of connection electrical parameters;

[0095] Based on the connection deviation index, an electrical connection stability index between the strain gauge inside the brake sensor and the connector is calculated.

[0096] Among them, the connection electrical parameters are various relevant data reflecting aspects such as the electrical connection characteristics and signal transmission conditions between the strain gauge inside the brake sensor and the connector. The preset parameter threshold is a reference numerical limit set for the connection electrical parameters based on the ideal working state or standard specifications. The connection deviation index is a quantitative index that characterizes the degree of deviation of the actual electrical parameters between the strain gauge inside the brake sensor and the connector from the preset parameter threshold and is used to measure the stability of the electrical connection.

[0097] Further, the acquisition of the connection electrical parameters between the strain gauge inside the brake sensor and the connector can be achieved through a high-precision multimeter; the preset parameter threshold can be obtained through industry standards and specifications; by calculating the difference of 1 - the connection deviation index, the electrical connection stability index between the strain gauge inside the brake sensor and the connector is obtained.

[0098] The present invention combines the electrical connection stability index and the performance optimization strategy to edit the operation calibration program of the brake sensor, can accurately control the key operation parameters of the brake sensor, monitor and correct electrical connection anomalies in real time, effectively improve the working reliability and measurement accuracy of the brake sensor, reduce performance fluctuations and fault risks caused by unstable electrical connections, and based on the operation calibration program, generate the corresponding operation method for the brake sensor. Among them, the operation calibration program is a set of instruction codes for the brake sensor to accurately set, monitor in real time, dynamically adjust and perform fault warning processing on various parameters during its operation according to the electrical connection stability index and performance optimization strategy to ensure the stable and efficient operation of the sensor and maintain measurement accuracy. Further, by combining the electrical connection stability index and the performance optimization strategy, the operation calibration program of the brake sensor can be edited through professional programming software.

[0099] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel brake sensor, comprising a housing (1), characterized in that: The outer surface of the shell (1) is sleeved with a pressure ring (2) and a pressure plate (8); a circuit board assembly (5) is provided on the side of the pressure ring (2) close to the pressure plate (8); a circuit board assembly bracket (7) is detachably mounted on the side of the pressure plate (8) close to the shell (1); a circuit board assembly (5) is provided on the side of the circuit board assembly bracket (7) close to the shell (1); a connector (4) is provided on the side of the circuit board assembly (5) close to the shell (1); and a plurality of spring pins (3) are fixedly mounted on the connector (4).

2. A novel brake sensor as claimed in claim 1, characterized in that: The outer surface of the spring pin (3) is covered with copper alloy.

3. A novel brake sensor as claimed in claim 1, characterized in that: The housing (1) is provided with a notch, and the spring pin (3) is used in conjunction with the notch.

4. A novel brake sensor as claimed in claim (1), characterized in that: The inner side wall of the pressure plate (8) is provided with a sealing ring (9), and the sealing ring (9) is used in conjunction with the outer shell (1).

5. A novel brake sensor as claimed in claim 1, characterized in that: The pressure plate (8) is provided with glass glue (10) and aluminum wire protection glue (11), and an aluminum wire (12) is installed on the pressure plate (8).

6. A novel brake sensor as claimed in claim 5, characterized in that: The circuit board assembly (5) and the circuit board assembly bracket (7) are both provided with a plurality of positioning holes, and the circuit board assembly (5) is provided with a strain gauge (6).

7. A novel method for operating a brake sensor, wherein the novel method for operating a brake sensor according to any one of claims 1 to 6 is performed, characterized in that: The method comprises: Collecting physical parameter data of the installation environment of the brake sensor, setting monitoring and control parameters corresponding to the environmental monitoring device based on the physical parameter data, and collecting data on the working environment of the brake sensor using the environmental monitoring device based on the monitoring and control parameters to obtain environmental monitoring data; Performing data analysis on the environmental monitoring data to obtain key environmental parameters, extracting environmental impact characteristics related to each structural component of the brake sensor from the key environmental parameters, analyzing component properties corresponding to each structural component of the brake sensor, and calculating the performance stability of the brake sensor in combination with the environmental impact characteristics and the component properties; Based on the performance stability, a performance optimization strategy corresponding to the brake sensor is planned, and the electrical connection stability index between the strain gauge inside the brake sensor and the connector is calculated. In combination with the electrical connection stability index and the performance optimization strategy, an operation calibration program of the brake sensor is edited, and based on the operation calibration program, an operation method corresponding to the brake sensor is generated.

8. The method according to claim 7, characterized in that The step of setting the monitoring control parameters corresponding to the environmental monitoring device based on the physical parameter data includes: Identify the parameter type identifier corresponding to the physical parameter data, and obtain the device monitoring unit corresponding to the environmental monitoring device; Analyze the unit performance characteristics corresponding to the equipment monitoring unit, and query the monitoring mechanism of the environmental monitoring equipment; Based on the monitoring mechanism, identifying data reliability-related characteristics in the unit performance characteristics; Vectorizing the parameter type identifier and the data reliability-related characteristic respectively to obtain a parameter type identifier vector and an associated characteristic vector; Calculating a vector matching index between the parameter type identification vector and the associated characteristic vector; Based on the vector matching index, determining a monitoring unit to be optimized in the device monitoring unit; According to the physical parameter data, setting the unit adjustment parameter corresponding to the monitoring unit to be optimized; Based on the unit adjustment parameters, monitoring control parameters corresponding to the environmental monitoring device are generated.

9. The method according to claim 7, characterized in that: The data analysis and processing of the environmental monitoring data to obtain key environmental parameters includes: Analyze the data source identifier corresponding to the environmental monitoring data, and determine the parsing strategy of the environmental monitoring data based on the data source identifier; According to the analysis strategy, the environmental monitoring data is subjected to layered analysis processing to obtain multi-layered analysis data; Performing a data verification operation on the multi-layer parsed data to obtain verified parsed data; Parameter extraction processing is performed on the verification and analysis data to obtain key environmental parameters.

10. The method according to claim 7, characterized in that The calculating of the electrical connection stability index between the strain gauge inside the brake sensor and the connector includes: Collecting electrical parameters of the connection between the strain gauge inside the brake sensor and the connector; In combination with the connection electrical parameters and the preset parameter threshold, the connection deviation index between the strain gauge inside the brake sensor and the connector can be calculated by the following formula: Among them, A represents the connection deviation index between the strain gauge inside the brake sensor and the connector, and B a Indicates the ath parameter value in the connection electrical parameters, B , a represents a reference threshold value corresponding to the ath parameter value in the connection electrical parameter in the preset parameter threshold value, a represents the serial number of the connection electrical parameter, and n represents the number of the connection electrical parameters; The electrical connection stability index between the strain gauge inside the brake sensor and the connector is calculated according to the connection deviation index.

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