Electronic cam-assisted brake system and method

Abstract

The application relates to the technical field of brake control, and discloses an electronic cam auxiliary brake system and method, a sensing acquisition module is used for monitoring an electronic cam in real time to generate sensor data; an abnormality detection module is used for analyzing and processing the sensor data in real time, identifying the abnormal state of the electronic cam, generating an abnormality signal if the electronic cam has an abnormal state, discovering the abnormality in time, quickly executing a brake operation, effectively avoiding accidents, and improving the safety of target equipment operation; a brake response module is used for judging the working state of the target equipment when the abnormality signal is identified, and performing abnormality processing according to the working state of the target equipment, which helps to reduce the risk caused by the abnormal state of the electronic cam and guarantees the safety of operators and equipment; and a communication feedback module is used for executing an abnormality correction strategy according to the identified correction signal and monitoring the brake state of the electronic cam after dynamic adjustment of brake parameters.

Description

Technical Field

[0001] This invention relates to the field of brake control technology, and more particularly to an electronic cam-assisted braking system and method. Background Technology

[0002] With the continuous development of automation technology, real-time monitoring of the operating status and braking demand of electronic cams and target equipment provides faster and more accurate braking response, improving the safety of target equipment. At the same time, adaptive control is applied to improve the braking response speed and accuracy, and realize the intelligent control of electronic cams. Electronic cams can be applied in automobile manufacturing and machining.

[0003] The present invention does not address how to determine whether an electronic cam is in an abnormal state based on real-time monitoring, generate an abnormal signal, determine the operating status of the target device based on the abnormal signal, and take corresponding actions, while simultaneously generating a correction signal and executing an anomaly correction strategy. To solve this problem, the present invention proposes an electronic cam-assisted braking system and method. Summary of the Invention

[0004] In view of the problems existing in the above-mentioned electronic cam-assisted braking systems and methods, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide an electronic cam-assisted braking system and method.

[0006] To solve the above-mentioned technical problems, the present invention provides an electronic cam-assisted braking system: a sensing acquisition module, an anomaly detection module, a braking response module, and a communication feedback module;

[0007] The sensing acquisition module is configured with a frequency adjustment strategy and a mode judgment strategy, which are used to monitor the electronic cam in real time, generate sensor data to determine the working mode of the electronic cam, and dynamically adjust the generation frequency of the sensor data according to the working mode of the electronic cam.

[0008] The anomaly detection module is configured with anomaly recognition strategy and truth judgment strategy to perform real-time analysis and processing of sensor data. It comprehensively judges the zero-crossing state and angle deviation state of the electronic cam to identify the abnormal state of the electronic cam. If the electronic cam has an abnormal state, an anomaly signal is generated.

[0009] The braking response module is configured with a status judgment strategy and an anomaly handling strategy. When an abnormal signal is detected, it is used to determine the working status of the target device, perform anomaly handling based on the working status of the target device, and generate a correction signal.

[0010] The communication feedback module is configured with an anomaly correction strategy, which is used to execute the anomaly correction strategy based on the identified correction signal and monitor the braking status of the electronic cam after the braking parameters are dynamically adjusted.

[0011] In a preferred embodiment of the electronic cam-assisted braking system of the present invention, the anomaly detection module is configured with an anomaly identification strategy and a truth judgment strategy. The anomaly identification strategy is used to identify abnormal states of the electronic cam, and the truth judgment strategy is used to determine the authenticity of the abnormal state. The sensor data includes the deflection state of the electronic cam, which includes the rotation angle of the electronic cam and the position of the slider. The anomaly identification strategy includes:

[0012] Monitor the rotation angle of the electronic cam and the position of the slider, configure the rotation threshold and zero position, compare the position of the slider with the zero position to determine the zero-crossing state of the electronic cam, and compare the rotation angle of the electronic cam with the rotation threshold to determine the angle deviation state of the electronic cam.

[0013] Determine whether the electronic cam has an abnormal state based on its zero-crossing state and angle deviation state.

[0014] When the electronic cam is in an abnormal state, the authenticity of the abnormal state is determined according to the true judgment strategy.

[0015] As a preferred embodiment of the electronic cam-assisted braking system of the present invention, the true judgment strategy includes:

[0016] The identified abnormal states are verified in the time dimension, and the time it takes for the electronic cam to automatically correct and return to the normal state is monitored.

[0017] Configure a correction threshold and compare the time it takes for the electronic cam to automatically correct and return to the normal state with the correction threshold to determine the authenticity of the abnormal state. If the abnormal state is true, an abnormal signal is generated.

[0018] In a preferred embodiment of the electronic cam-assisted braking system of the present invention, the braking response module is configured with a state judgment strategy and an anomaly handling strategy. The state judgment strategy is used to determine the working state of the target device, and the anomaly handling strategy is used to perform anomaly handling based on the working state of the target device. The state judgment strategy includes:

[0019] The deflection status of the electronic cam also includes the pressure and speed of the slider, receiving abnormal signals, and configuring pressure and speed thresholds;

[0020] Compare the slider's position with its start and end positions, and compare the slider's pressure and speed with the pressure threshold and speed threshold, respectively.

[0021] The working status of the target equipment is determined based on the comparison results. The working status of the target equipment includes the stamping state and the lifting state.

[0022] As a preferred embodiment of the electronic cam-assisted braking system of the present invention, the anomaly handling strategy includes:

[0023] Anomalies are handled according to the working state of the target equipment. If the target equipment is in the stamping state, brake control is executed, and brake parameters are dynamically adjusted according to the stamping state of the target equipment, while a correction signal is generated. If the target equipment is in the boom lifting state, brake control is not required, and a correction signal is generated.

[0024] As a preferred embodiment of the electronic cam-assisted braking system of the present invention, the anomaly correction strategy includes:

[0025] If the target device is in the boom-raised state, the first correction is performed based on the identified correction signal;

[0026] If the target equipment is in the stamping state, the braking state of the electronic cam after the braking parameters are dynamically adjusted is monitored. If the braking state of the electronic cam after the braking parameters are dynamically adjusted reaches the expected braking state, the first correction is performed according to the identified correction signal.

[0027] If the braking state of the electronic cam does not reach the expected braking state after the braking parameters are dynamically adjusted, a second correction is performed based on the identified correction signal.

[0028] If the braking state of the electronic cam still does not reach the expected braking state after the second correction is performed, the third correction is performed based on the identified correction signal.

[0029] As a preferred embodiment of the electronic cam-assisted braking system of the present invention, the first correction logic includes:

[0030] The zero-crossing status and angle deviation status of the electronic cam are determined based on the abnormal signal. If the electronic cam crosses the zero point, the difference between the slider position and the zero point position is determined. The step size for adjusting the zero point is determined by the difference. After the zero point is adjusted, the zero-crossing status of the electronic cam is re-determined until the electronic cam does not cross the zero point.

[0031] If the angle deviation of the electronic cam is abnormal, angle deviation compensation will be performed;

[0032] The logic of the second amendment includes:

[0033] Monitor the pressure of the slide block under the stamping state, configure the pressure extreme threshold, and compare the pressure of the slide block under the stamping state with the pressure extreme threshold to adjust the speed of the slide block;

[0034] The third correction logic includes cutting off the power supply and stopping the target device from moving.

[0035] As a preferred embodiment of the electronic cam-assisted braking system of the present invention, the sensing acquisition module is configured with a frequency adjustment strategy and a mode judgment strategy. The frequency adjustment strategy is used to dynamically adjust the generation frequency of sensor data, and the mode judgment strategy is used to determine the working mode of the electronic cam.

[0036] The sensor data also includes the acceleration of the slider. The working mode of the electronic cam is determined based on the acceleration of the slider, and the generation frequency of the sensor data is dynamically adjusted according to the working mode of the electronic cam.

[0037] Pattern recognition strategies include:

[0038] Calculate the absolute value of the rate of change of the slider's acceleration based on the slider's acceleration, and determine the sign of the rate of change of the slider's acceleration in order to determine the characteristics of the acceleration change.

[0039] The working mode of the electronic cam is determined by comprehensively considering the characteristics of acceleration changes. The working modes of the electronic cam include normal operation, start-up, stop, and abnormal operation.

[0040] As a preferred embodiment of the electronic cam-assisted braking system of the present invention, the frequency adjustment strategy includes:

[0041] Configure a reference generation frequency and dynamically adjust the sensor data generation frequency according to the working mode of the electronic cam. When the working mode of the electronic cam is normal operation and stop, the sensor data generation frequency is adjusted to the reference generation frequency.

[0042] When the electronic cam is in the start mode, the sensor data generation frequency is adjusted to twice the reference generation frequency.

[0043] When the electronic cam operates in an abnormal mode, the sensor data generation frequency is adjusted to three times the baseline generation frequency.

[0044] The electronic cam-assisted braking method includes: S1, real-time monitoring of the electronic cam, generating sensor data to determine the working mode of the electronic cam, and dynamically adjusting the generation frequency of the sensor data according to the working mode of the electronic cam;

[0045] S2. Perform real-time analysis and processing of sensor data, comprehensively judge the zero-crossing state and angle deviation state of the electronic cam to identify the abnormal state of the electronic cam. If the electronic cam has an abnormal state, generate an abnormal signal.

[0046] S3. When an abnormal signal is detected, determine the working status of the target device, and perform abnormal processing based on the working status of the target device to generate a correction signal.

[0047] S4. Execute the abnormal correction strategy based on the identified correction signal, and monitor the braking status of the electronic cam after the braking parameters are dynamically adjusted.

[0048] The beneficial effects of this invention are as follows: This invention uses a sensing acquisition module to monitor the electronic cam in real time and generate sensor data; an anomaly detection module analyzes and processes the sensor data in real time to identify abnormal states of the electronic cam. If an abnormal state exists, an anomaly signal is generated, allowing for timely detection of the anomaly and rapid execution of braking operations, effectively preventing accidents and improving the safety of the target equipment operation; the braking response module, upon detecting an anomaly signal, determines the operating status of the target equipment and performs anomaly handling accordingly, helping to reduce the risks caused by abnormal states of the electronic cam and ensuring the safety of operators and equipment; the communication feedback module executes anomaly correction strategies based on the identified correction signals and monitors the braking status of the electronic cam after dynamic adjustment of braking parameters, improving the reliability and stability of the electronic cam and ensuring its normal operation under various working conditions. Attached Figure Description

[0049] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0050] Figure 1 This is a system structure diagram of the electronic cam-assisted braking system of the present invention;

[0051] Figure 2 This is a flowchart of the anomaly detection strategy of the electronic cam-assisted braking system of the present invention;

[0052] Figure 3 This is a flowchart of the anomaly correction strategy for the electronic cam-assisted braking system of the present invention;

[0053] Figure 4 This is a flowchart of the electronic cam-assisted braking method of the present invention. Detailed Implementation

[0054] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0055] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention can also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0056] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0057] Example 1

[0058] This embodiment provides a system structure diagram of an electronic cam-assisted braking system, such as... Figure 1 As shown, the electronic cam-assisted braking system includes: a sensor acquisition module, an anomaly detection module, a braking response module, and a communication feedback module.

[0059] In this embodiment, the press represents the target equipment, which also includes electric vehicles.

[0060] The sensor acquisition module is used to monitor the electronic cam in real time, generate sensor data to determine the working mode of the electronic cam, and dynamically adjust the generation frequency of sensor data according to the working mode of the electronic cam.

[0061] The sensor data includes the deflection state of the electronic cam, which includes the rotation angle of the electronic cam and the position of the slider. The state of the electronic cam is reflected in the state changes of the slider. An angle sensor and an accelerometer are installed near the electronic cam to accurately capture the deflection state of the electronic cam and the acceleration changes of the slider.

[0062] It is equipped with a frequency adjustment strategy and a mode judgment strategy. The frequency adjustment strategy is used to dynamically adjust the generation frequency of sensor data, and the mode judgment strategy is used to determine the working mode of the electronic cam. The sensor data also includes the acceleration of the slider. The working mode of the electronic cam is determined based on the acceleration of the slider, and the generation frequency of sensor data is dynamically adjusted based on the working mode of the electronic cam.

[0063] Pattern recognition strategies include:

[0064] Calculate the absolute value of the rate of change of the slider's acceleration based on the slider's acceleration, and determine the sign of the rate of change of the slider's acceleration in order to determine the characteristics of the acceleration change.

[0065] The working mode of the electronic cam is determined by comprehensively considering the characteristics of acceleration changes. The working modes of the electronic cam include normal operation, start-up, stop, and abnormal operation.

[0066] Specifically, the absolute value of the rate of change of the slider's acceleration is calculated based on the slider's acceleration, and a rate of change threshold is configured. The rate of change threshold includes a first threshold and a second threshold. If the rate of change of the slider's acceleration is less than or equal to the first threshold, the electronic cam's working mode is normal operation.

[0067] If the rate of change of the slider's acceleration is greater than the first threshold and less than or equal to the second threshold, then determine the sign of the rate of change of the slider's acceleration. If the sign of the rate of change of the slider's acceleration is positive, then the electronic cam's working mode is activated.

[0068] If the sign of the rate of change of the slider's acceleration is negative and the change of the slider's acceleration is 0, then the working mode of the electronic cam is stopped.

[0069] If the rate of change of the slider's acceleration is greater than the second threshold, the electronic cam will operate in an abnormal mode.

[0070] The formula for calculating the absolute value of the rate of change of the slider's acceleration is as follows:

[0071] ;

[0072] In the formula, This represents the absolute value of the rate of change of the slider's acceleration. express The acceleration of the slider at any given moment. express The acceleration of the slider at any given moment.

[0073] Frequency adjustment strategies include:

[0074] Configure a reference generation frequency and dynamically adjust the sensor data generation frequency according to the working mode of the electronic cam. When the working mode of the electronic cam is normal operation and stop, the sensor data generation frequency is adjusted to the reference generation frequency.

[0075] When the electronic cam is in the start mode, the sensor data generation frequency is adjusted to twice the reference generation frequency.

[0076] When the electronic cam operates in an abnormal mode, the sensor data generation frequency is adjusted to three times the baseline generation frequency.

[0077] The frequency of sensor data generation is dynamically adjusted according to the working mode of the electronic cam to achieve dynamic sampling of sensor data, effectively balancing the real-time performance and resource utilization efficiency of the auxiliary braking system.

[0078] The anomaly detection module is used to analyze and process sensor data in real time, and comprehensively judge the zero-crossing state and angle deviation state of the electronic cam to identify the abnormal state of the electronic cam. If the electronic cam has an abnormal state, an abnormal signal is generated.

[0079] Configure anomaly detection and veracity judgment strategies. The anomaly detection strategy identifies abnormal states of the electronic cam, while the veracity judgment strategy determines the authenticity of the abnormal state. Figure 2 As shown, the anomaly detection strategy includes:

[0080] Monitor the rotation angle of the electronic cam and the position of the slider, configure the rotation threshold and zero position, compare the position of the slider with the zero position to determine the zero-crossing state of the electronic cam, and compare the rotation angle of the electronic cam with the rotation threshold to determine the angle deviation state of the electronic cam.

[0081] Determine whether the electronic cam has an abnormal state based on its zero-crossing state and angle deviation state.

[0082] When the electronic cam is in an abnormal state, the authenticity of the abnormal state is determined according to the true judgment strategy.

[0083] Specifically, monitor the position of the slider to determine the zero-crossing state of the electronic cam, configure the zero-point position, and if the slider is at the zero-point position, the electronic cam has not crossed the zero point, indicating that the electronic cam is not in an abnormal state.

[0084] If the slider is not at the zero point, the electronic cam crosses the zero point, indicating that the electronic cam is in an abnormal state. The authenticity of the abnormal state needs to be determined.

[0085] The zero point position here is the reference position of the slider when the electronic cam starts. The monitoring of the slider position here is also to monitor the position signal sent by the electronic cam when controlling the press / electric vehicle. The position signal is compared with the zero point position to determine whether the electronic cam has crossed the zero point, and then to determine whether the electronic cam has an abnormal state.

[0086] Monitor the rotation angle of the electronic cam, determine the angular deviation status of the electronic cam, and configure rotation thresholds, including upper rotation thresholds and lower rotation thresholds. If the rotation angle of the electronic cam is greater than or equal to the lower rotation threshold or less than or equal to the upper rotation threshold, the angular deviation of the electronic cam is normal, indicating that there is no abnormal state of the electronic cam.

[0087] If the rotation angle of the electronic cam is less than the lower rotation threshold or greater than the upper rotation threshold, the angle deviation of the electronic cam is abnormal, indicating that the electronic cam is in an abnormal state, and the authenticity of the abnormal state needs to be determined.

[0088] The strategies for accurately determining the truth include:

[0089] The identified abnormal states are verified in the time dimension, and the time it takes for the electronic cam to automatically correct and return to the normal state is monitored.

[0090] Configure a correction threshold and compare the time it takes for the electronic cam to automatically correct and return to the normal state with the correction threshold to determine the authenticity of the abnormal state. If the abnormal state is true, an abnormal signal is generated.

[0091] Specifically, a correction threshold is configured. If the time for the electronic cam to automatically correct and return to the normal state is less than or equal to the correction threshold, the abnormal state is considered false.

[0092] If the time it takes for the electronic cam to automatically correct and return to the normal state is greater than the correction threshold, then the abnormal state is true, and an abnormal signal is generated.

[0093] Identifying abnormal states of the electronic cam requires judging whether the slider position has crossed the zero point, whether the rotation angle of the electronic cam exceeds the rotation threshold, and whether the electronic cam has completed automatic correction. The electronic cam can achieve a certain degree of correction. If the correction process is long, the auxiliary braking system needs to intervene and execute the braking response module to detect abnormalities in a timely manner, perform braking operations, effectively avoid accidents, and improve the safety of press / electric vehicle operation.

[0094] The brake response module is used to determine the working status of the press / electric vehicle when an abnormal signal is detected, and to perform abnormal processing and generate a correction signal based on the working status of the press / electric vehicle.

[0095] Configure status judgment strategy and exception handling strategy. The status judgment strategy is used to determine the working status of the press / electric vehicle, and the exception handling strategy is used to handle exceptions based on the working status of the press / electric vehicle. The status judgment strategy includes:

[0096] The deflection status of the electronic cam also includes the pressure and speed of the slider, receiving abnormal signals, and configuring pressure and speed thresholds;

[0097] Compare the slider's position with its start and end positions, and compare the slider's pressure and speed with the pressure threshold and speed threshold, respectively.

[0098] The working status of the target equipment is determined based on the comparison results. The working status of the target equipment includes the stamping state and the lifting state.

[0099] Specifically, taking a press as an example, the deflection state of the electronic cam also includes the pressure and speed of the slider. If the slider is not at the start or end position and the pressure of the slider is greater than or equal to the pressure threshold and the speed of the slider is less than or equal to the speed threshold, then the working state of the press is the stamping state.

[0100] If the slider is at the start / end position and the slider pressure is less than the pressure threshold and the slider speed is less than the speed threshold, then the press is in the lifting state.

[0101] The start and end positions refer to the position signals of the electronic cam, which in turn refer to the 0-degree and 180-degree corresponding electronic cam running lights. During normal stamping, the corresponding changes of the electronic cam running lights refer to 0 to 180 degrees. In the stamping state, the slider position is not at the start and end positions, and the slider speed is less than or equal to the speed threshold, because it is necessary to protect the press from damage caused by overspeed operation. The slider pressure is greater than or equal to the pressure threshold. In the lifting arm state, the slider position should be at or close to the start and end positions, and the slider speed is definitely significantly less than the speed threshold or directly close to 0. This is because the slider has approached or reached the start and end positions and is preparing to stop or make very slow adjustments. In the lifting arm state, since no stamping operation is performed, the applied pressure should be close to disappearing or significantly reduced, so the slider pressure should be significantly lower than the pressure threshold during stamping.

[0102] Exception handling strategies include:

[0103] Abnormalities are handled according to the working state of the press. If the press is in the stamping state, brake control is executed, and brake parameters are dynamically adjusted according to the stamping state of the press, while a correction signal is generated. If the press is in the lifting state, brake control is not required, and a correction signal is generated.

[0104] The function expression for dynamically adjusting braking parameters is as follows:

[0105] ;

[0106] In the formula, This indicates the dynamic adjustment value of the braking parameters. Indicates speed adjustment gain. This represents the difference between the target speed and the actual speed. Indicates pressure adjustment gain. This represents the difference between the target pressure and the actual pressure.

[0107] The speed adjustment gain determines the degree to which speed deviation affects brake adjustment. A larger pressure adjustment gain results in a more sensitive response to speed changes and a more aggressive braking adjustment; the pressure adjustment gain determines the degree to which pressure deviation affects braking adjustment. A larger value indicates a more sensitive response to pressure changes, resulting in more proactive brake adjustments. Simultaneously, the above formula employs dimensionless calculations to ensure accurate dynamic adjustment values ​​for brake parameters. Furthermore, monitoring the electronic cam's effectiveness in controlling the press after dynamic brake parameter adjustments helps reduce risks caused by abnormal electronic cam states, ensuring the safety of operators and equipment. Correction signals are used to execute corresponding abnormality correction strategies based on abnormal signals.

[0108] The communication feedback module is used to execute anomaly correction strategies based on the identified correction signals and to monitor the braking status of the electronic cam after the braking parameters are dynamically adjusted.

[0109] Anomaly correction strategies such as Figure 3 As shown, it specifically includes:

[0110] If the press is in the boom-raised state, the first correction is performed based on the detected correction signal;

[0111] If the press is in the stamping state, the braking state of the electronic cam after the braking parameters are dynamically adjusted is monitored. If the braking state of the electronic cam after the braking parameters are dynamically adjusted reaches the expected braking state, the first correction is executed according to the identified correction signal.

[0112] If the braking state of the electronic cam does not reach the expected braking state after the braking parameters are dynamically adjusted, a second correction is performed based on the identified correction signal.

[0113] If the braking state of the electronic cam still does not reach the expected braking state after the second correction is performed, the third correction is performed based on the identified correction signal.

[0114] The logic of the first amendment includes:

[0115] The zero-crossing status and angle deviation status of the electronic cam are determined based on the abnormal signal. If the electronic cam crosses the zero point, the difference between the slider position and the zero point position is determined. The step size for adjusting the zero point is determined by the difference. After the zero point is adjusted, the zero-crossing status of the electronic cam is re-determined until the electronic cam does not cross the zero point.

[0116] If the angle deviation of the electronic cam is abnormal, angle deviation compensation will be performed.

[0117] The function expression for angle deviation compensation is shown below:

[0118] ;

[0119] In the formula, This indicates the compensation value for the slider position. This indicates the distance between the slider and the center of the electronic cam. Represents the sine function. This represents the compensation value for angular deviation.

[0120] The position of the electronic cam itself is fixed, so the angle deviation needs to be compensated by adjusting the position of the slider. The difference between the actual angle and the expected angle of the electronic cam is measured by the encoder, and the compensation value of the slider position is calculated according to the above formula. After compensation, the angle deviation of the electronic cam is judged again until the angle deviation of the electronic cam is normal. In actual compensation adjustment, multiple fine adjustments and measurements may be required to find the best compensation setting.

[0121] The step size for adjusting the zero point needs to be small enough to accommodate fine adjustments. The zero point position must be remeasured after each adjustment until the expected accuracy is achieved. During the adjustment process, the electronic cam-assisted braking system is started and stopped multiple times to ensure that the zero point position remains stable under different dynamic conditions.

[0122] The logic of the second amendment includes:

[0123] Monitor the pressure of the slide block under the stamping state, configure the pressure extreme threshold, and compare the pressure of the slide block under the stamping state with the pressure extreme threshold to adjust the speed of the slide block;

[0124] Specifically, if the pressure of the slider in the stamping state is greater than the pressure extreme threshold, then the speed of the slider is increased;

[0125] If the pressure of the slider in the stamping state is less than the pressure extreme threshold, then the slider speed is reduced.

[0126] By adjusting the speed and pressure of the slider, the stamping requirements can be adapted to changes caused by abnormal angle deviations.

[0127] The third corrective logic includes cutting off the power supply, stopping the press to prevent further damage caused by the zero-crossing abnormality, conducting a comprehensive mechanical and electronic inspection of the electronic cam to find the root cause of the zero-crossing and repair it, and inspecting the sensor and electronic cam control system to repair the faults causing the angle deviation.

[0128] Example 2

[0129] This embodiment provides a flowchart of the electronic cam-assisted braking method, such as... Figure 4 As shown, the electronic cam-assisted braking method includes:

[0130] S1. Monitor the electronic cam in real time and generate sensor data;

[0131] S2. Perform real-time analysis and processing of sensor data to identify abnormal states of the electronic cam. If an abnormal state exists in the electronic cam, an abnormal signal is generated.

[0132] S3. When an abnormal signal is detected, determine the working status of the press, and perform abnormal processing according to the working status of the press to generate a correction signal.

[0133] S4. Execute the abnormal correction strategy based on the identified correction signal, and monitor the braking status of the electronic cam after the braking parameters are dynamically adjusted.

[0134] For details on the electronic cam-assisted braking method, please refer to the Electronic Cam-Assisted Braking System; it will not be elaborated upon here.

Claims

1. An electronic cam-assisted brake system characterized by, include: The module includes a sensor acquisition module, an anomaly detection module, a braking response module, and a communication feedback module. The sensing acquisition module is configured with a frequency adjustment strategy and a mode judgment strategy to monitor the electronic cam in real time, generate sensor data to determine the working mode of the electronic cam, and dynamically adjust the generation frequency of the sensor data according to the working mode of the electronic cam. The working modes of the electronic cam include normal operation, start-up, stop and abnormal operation. The anomaly detection module is configured with anomaly recognition strategy and truth judgment strategy to perform real-time analysis and processing of sensor data. It comprehensively judges the zero-crossing state and angle deviation state of the electronic cam to identify the abnormal state of the electronic cam. If the electronic cam has an abnormal state, an anomaly signal is generated. The authenticity judgment strategy is used to judge the authenticity of abnormal states, including performing time dimension verification on the judged abnormal states, monitoring the time when the electronic cam automatically corrects and returns to the normal state, and comparing it with the correction threshold to judge the authenticity of the abnormal state. The position of the slider is compared with the zero position to determine the zero-crossing state of the electronic cam. At the same time, the rotation angle of the electronic cam is compared with the rotation threshold to determine the angular deviation state of the electronic cam. When the electronic cam crosses the zero point or the angular deviation of the electronic cam is abnormal, it indicates that there is an abnormal state of the electronic cam. The brake response module is configured with a status judgment strategy and an anomaly handling strategy. When an anomaly signal is detected, the module judges the working status of the target device and performs anomaly handling based on the working status of the target device to generate a correction signal. The working status of the target device includes a stamping state and a lifting arm state. The communication feedback module is configured with an anomaly correction strategy, which is used to execute the anomaly correction strategy based on the identified correction signal and monitor the braking status of the electronic cam after the braking parameters are dynamically adjusted.

2. The electronic cam-assisted brake system of claim 1, wherein: The anomaly detection module is configured with an anomaly recognition strategy and a truth judgment strategy. The anomaly recognition strategy is used to identify abnormal states of the electronic cam. The sensor data includes the deflection state of the electronic cam, which includes the rotation angle of the electronic cam and the position of the slider. The anomaly recognition strategy includes: Monitor the rotation angle of the electronic cam and the position of the slider, configure the rotation threshold and zero position, compare the position of the slider with the zero position to determine the zero-crossing state of the electronic cam, and compare the rotation angle of the electronic cam with the rotation threshold to determine the angle deviation state of the electronic cam. Determine whether the electronic cam has an abnormal state based on its zero-crossing state and angle deviation state. When the electronic cam is in an abnormal state, the authenticity of the abnormal state is determined according to the true judgment strategy.

3. The electronic cam-assisted brake system of claim 2, wherein: The truth determination strategy includes: The identified abnormal states are verified in the time dimension, and the time it takes for the electronic cam to automatically correct and return to the normal state is monitored. Configure a correction threshold and compare the time it takes for the electronic cam to automatically correct and return to the normal state with the correction threshold to determine the authenticity of the abnormal state. If the time it takes for the electronic cam to automatically correct and return to the normal state is greater than the correction threshold, the abnormal state is true and an abnormal signal is generated.

4. The electronic cam-assisted brake system of claim 3, wherein: The braking response module is configured with a status judgment strategy and an anomaly handling strategy. The status judgment strategy is used to determine the working status of the target device, and the anomaly handling strategy is used to handle anomalies based on the working status of the target device. The status judgment strategy includes: The deflection status of the electronic cam also includes the pressure and speed of the slider, receiving abnormal signals, and configuring pressure and speed thresholds; Compare the slider's position with its start and end positions, and compare the slider's pressure and speed with the pressure threshold and speed threshold, respectively. The working status of the target equipment is determined based on the comparison results.

5. The electronic cam-assisted brake system of claim 4, wherein, The exception handling strategy includes: Anomalies are handled according to the working state of the target equipment. If the target equipment is in the stamping state, brake control is executed, and brake parameters are dynamically adjusted according to the stamping state of the target equipment, while a correction signal is generated. If the target equipment is in the boom lifting state, brake control is not required, and a correction signal is generated.

6. The electronic cam-assisted brake system of claim 5, wherein, Anomaly correction strategies include: If the target device is in the boom-raised state, the first correction is performed based on the identified correction signal; If the target equipment is in the stamping state, the braking state of the electronic cam after the braking parameters are dynamically adjusted is monitored. If the braking state of the electronic cam after the braking parameters are dynamically adjusted reaches the expected braking state, the first correction is performed according to the identified correction signal. If the braking state of the electronic cam does not reach the expected braking state after the braking parameters are dynamically adjusted, a second correction is performed based on the identified correction signal. If the braking state of the electronic cam still does not reach the expected braking state after the second correction is performed, the third correction is performed based on the identified correction signal.

7. The electronic cam-assisted braking system as described in claim 6, characterized in that, The logic of the first amendment includes: The zero-crossing status and angle deviation status of the electronic cam are determined based on the abnormal signal. If the electronic cam crosses the zero point, the difference between the slider position and the zero point position is determined. The step size for adjusting the zero point is determined by the difference. After the zero point is adjusted, the zero-crossing status of the electronic cam is re-determined until the electronic cam does not cross the zero point. If the angle deviation of the electronic cam is abnormal, angle deviation compensation will be performed; The logic of the second amendment includes: Monitor the pressure of the slide block under the stamping state, configure the pressure extreme threshold, and compare the pressure of the slide block under the stamping state with the pressure extreme threshold to adjust the speed of the slide block; The third correction logic includes cutting off the power supply and stopping the target device from moving.

8. The electronic cam-assisted braking system as described in claim 7, characterized in that, The sensing acquisition module is configured with a frequency adjustment strategy and a mode judgment strategy. The frequency adjustment strategy is used to dynamically adjust the generation frequency of sensor data, and the mode judgment strategy is used to determine the working mode of the electronic cam. The sensor data also includes the acceleration of the slider. The working mode of the electronic cam is determined based on the acceleration of the slider, and the generation frequency of the sensor data is dynamically adjusted according to the working mode of the electronic cam. Pattern recognition strategies include: Calculate the absolute value of the rate of change of the slider's acceleration based on the slider's acceleration, and determine the sign of the rate of change of the slider's acceleration in order to determine the characteristics of the acceleration change. The working mode of the electronic cam is determined by comprehensively analyzing the characteristics of acceleration changes.

9. The electronic cam-assisted braking system as described in claim 8, characterized in that, The frequency adjustment strategy includes: Configure a reference generation frequency and dynamically adjust the sensor data generation frequency according to the working mode of the electronic cam. When the working mode of the electronic cam is normal operation and stop, the sensor data generation frequency is adjusted to the reference generation frequency. When the electronic cam is in the start mode, the sensor data generation frequency is adjusted to twice the reference generation frequency. When the electronic cam operates in an abnormal mode, the sensor data generation frequency is adjusted to three times the baseline generation frequency.

10. An electronic cam-assisted braking method, implemented based on the electronic cam-assisted braking system according to any one of claims 1-9, characterized in that, include: S1. Monitor the electronic cam in real time, generate sensor data to determine the working mode of the electronic cam, and dynamically adjust the generation frequency of sensor data according to the working mode of the electronic cam. S2. Perform real-time analysis and processing of sensor data, comprehensively judge the zero-crossing state and angle deviation state of the electronic cam to identify the abnormal state of the electronic cam. If the electronic cam has an abnormal state, generate an abnormal signal. S3. When an abnormal signal is detected, determine the working status of the target device, and perform abnormal processing based on the working status of the target device to generate a correction signal. S4. Execute the abnormal correction strategy based on the identified correction signal, and monitor the braking status of the electronic cam after the braking parameters are dynamically adjusted.

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