Anti-pinch calibration device, method and medium for a retractable pedal

Abstract

The application discloses a kind of scalable pedal anti-pinch calibration device, method and medium, it is related to the field of pedal calibration.The device includes dynamometer, calibration module, host computer;Dynamometer is placed on the pedal;Calibration module is connected with motor, dynamometer, host computer respectively;Host computer is used to calibrate the hall signal in the preset anti-pinch range and judge whether the current anti-pinch force is in the preset current calibration range, if yes, then complete the anti-pinch force calibration of pedal;If not, then update the current calibration range by anti-pinch force algorithm, and return to the step of judging whether the current anti-pinch force is in the preset current calibration range.It can be seen from this that the pedal anti-pinch range and anti-pinch force calibration are realized by the device, so that the anti-pinch ability of pedal can meet the calibration value, so as to avoid the anti-pinch force of pedal as large as possible or too small, ensure that pedal will not cause harm to people in the process of stretching and retracting, improve user experience.

Description

Technical Field

[0001] This application relates to the field of pedal calibration, and in particular to an anti-pinch calibration device, method and medium for a retractable pedal. Background Technology

[0002] With the increasing popularity of Sport Utility Vehicles (SUVs), SUVs are becoming more and more popular among consumers due to their large space, high chassis, and good off-road capability. At the same time, the high chassis makes it inconvenient for passengers to get in and out of the vehicle. Therefore, side steps that facilitate passenger entry and exit have become particularly important.

[0003] To address this issue, some vehicles on the market are equipped with a device called an automatic retractable step. This allows women and children to get in and out of the vehicle without affecting its passability or lowering its height. Because the step is automatic, this device typically has an anti-pinch function to enhance safety. However, if the anti-pinch force is too great, it may fail to prevent pinching and could injure someone, significantly reducing the user experience.

[0004] Therefore, how to calibrate the anti-pinch capability of retractable pedals is a technical problem that urgently needs to be solved by those in the field. Summary of the Invention

[0005] The purpose of this application is to provide a calibration device, method, and medium for anti-pinch of a retractable pedal, used to calibrate the anti-pinch capability of the retractable pedal.

[0006] To solve the above-mentioned technical problems, this application provides an anti-pinch calibration device for a retractable pedal, including a force gauge, a calibration module, and a host computer;

[0007] The force gauge is placed on the pedal and is used to measure the current anti-pinch force during the folding or unfolding of the pedal;

[0008] The calibration module is connected to the motor, the force gauge, and the host computer respectively, and is used to acquire the current anti-pinch force and the Hall signal generated by the motor during operation within the preset anti-pinch range, and send the current anti-pinch force and the Hall signal to the host computer.

[0009] The host computer is used to calibrate the Hall signal within the preset anti-pinch range and determine whether the current anti-pinch force is within the preset current calibration range. If yes, the calibration of the anti-pinch force of the pedal is completed; if no, the current calibration range is updated through the anti-pinch force algorithm, and the step of determining whether the current anti-pinch force is within the preset current calibration range is returned.

[0010] Preferably, the calibration module is used to obtain the current anti-pinch force by:

[0011] The calibration module is used to obtain the current anti-pinch force measured by the force gauge at the first target position; wherein, the first target position is the midpoint between the position of the pedal at the position of the first preset distance from the lower limit of the preset anti-pinch range, the position of the upper limit of the preset anti-pinch range, the position of the upper limit of the preset anti-pinch range, and the position at the first preset distance from the lower limit of the preset anti-pinch range.

[0012] Preferably, the pedal and the vehicle on which the pedal is located are connected by two fixed points; the first target position is the position at the middle of the position of the lower limit of the preset anti-pinch range, the upper limit of the preset anti-pinch range, the upper limit of the preset anti-pinch range, and the position at the lower limit of the preset anti-pinch range, respectively, the position at the second preset distance from both sides of the two fixed points, and the position of the center point of the pedal.

[0013] Preferably, the force gauge is an S-type force gauge.

[0014] Preferably, the device further includes: a step-down module and a display;

[0015] The step-down module is connected to the force gauge and the display respectively, and is used to convert the electrical signal of the current anti-pinch force measured by the force gauge into an electrical signal for the calibration module to receive; and to display the electrical signal for the calibration module to receive through the display.

[0016] Preferably, the calibration module is connected to the CAN communication module, and the CAN communication module communicates with the host computer via a USB interface.

[0017] To address the aforementioned technical problems, this application also provides an anti-pinch calibration method for a retractable pedal, applied to a calibration device comprising a force gauge, a calibration module, and a host computer. The force gauge is placed on the pedal, and the calibration module is connected to a motor, the force gauge, and the host computer, respectively. The method includes:

[0018] The calibration module obtains the current anti-pinch force and the Hall signal generated by the motor during operation within the preset anti-pinch range; wherein, the current anti-pinch force is the anti-pinch force measured by the force gauge during the folding or unfolding of the pedal;

[0019] The Hall signal within the preset anti-pinch range is calibrated;

[0020] Determine whether the current anti-pinch force is within the preset current calibration range;

[0021] If so, then the calibration of the anti-pinch force of the pedal is completed;

[0022] If not, the current calibration range is updated using the anti-pinch force algorithm, and the step of determining whether the current anti-pinch force is within the preset current calibration range is returned.

[0023] To address the aforementioned technical problems, this application also provides an anti-pinch calibration device for a retractable pedal, applicable to a calibration device comprising a force gauge, a calibration module, and a host computer. The force gauge is placed on the pedal, and the calibration module is connected to a motor, the force gauge, and the host computer, respectively. The device includes:

[0024] The acquisition module is used to acquire the current anti-pinch force obtained by the calibration module and the Hall signal generated by the motor during operation within the preset anti-pinch range; wherein, the current anti-pinch force is the anti-pinch force measured by the force gauge during the folding or unfolding of the pedal;

[0025] The first calibration module is used to calibrate the Hall signal within the preset anti-pinch range;

[0026] The judgment module is used to determine whether the current anti-pinch force is within the preset current calibration range; if yes, the second calibration module is triggered; if no, the update module is triggered.

[0027] The second calibration module is used to calibrate the anti-pinch force of the pedal;

[0028] The update module is used to update the current calibration range through the anti-pinch force algorithm and return the step of determining whether the current anti-pinch force is within the preset current calibration range.

[0029] To address the aforementioned technical problems, this application also provides an anti-pinch calibration device for a retractable pedal, comprising:

[0030] Memory, used to store computer programs;

[0031] A processor is used to implement the steps of the above-described anti-pinch calibration method for the retractable pedal when executing the computer program.

[0032] To address the aforementioned technical problems, this application also provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the aforementioned anti-pinch calibration method for retractable pedals.

[0033] The anti-pinch calibration device for a retractable pedal provided in this application includes a force gauge, a calibration module, and a host computer. The force gauge is placed on the pedal and is used to measure the current anti-pinch force during the pedal's folding or unfolding process. The calibration module is connected to the motor, the force gauge, and the host computer, respectively, and is used to acquire the current anti-pinch force and the Hall signal generated by the motor during operation within a preset anti-pinch range, and send the current anti-pinch force and the Hall signal to the host computer. The host computer is used to calibrate the Hall signal within the preset anti-pinch range and determine whether the current anti-pinch force is within the preset current calibration range. If so, the calibration of the pedal's anti-pinch force is completed; if not, the current calibration range is updated through an anti-pinch force algorithm, and the process of determining whether the current anti-pinch force is within the preset current calibration range is returned. Therefore, this device achieves the calibration of the pedal's anti-pinch range and anti-pinch force, ensuring that the pedal's anti-pinch capability meets the calibration value, thereby minimizing the possibility of excessive or insufficient anti-pinch force and ensuring that the pedal will not cause injury to the user during extension and retraction, thus improving the user experience.

[0034] In addition, this application also provides a method for calibrating the anti-pinch function of a retractable pedal, a device for calibrating the anti-pinch function of a retractable pedal, and a computer-readable storage medium, which have the same or corresponding technical features as the aforementioned device for calibrating the anti-pinch function of a retractable pedal and have the same effect. Attached Figure Description

[0035] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram showing the location of a test point at a certain test location, as provided in an embodiment of this application.

[0037] Figure 2 A flowchart illustrating an anti-pinch calibration method for a retractable pedal provided in this application embodiment;

[0038] Figure 3 A structural diagram of an anti-pinch calibration device for a retractable pedal provided in an embodiment of this application;

[0039] Figure 4 A structural diagram of an anti-pinch calibration device for a retractable pedal provided in another embodiment of this application;

[0040] Figure 5 This is a structural diagram of the calibration system provided in an embodiment of this application. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0042] The core of this application is to provide an anti-pinch calibration device, method, and medium for retractable pedals, used to calibrate the anti-pinch capability of retractable pedals.

[0043] With the increasing popularity of SUVs, which are favored by consumers due to their spaciousness, high ground clearance, and good off-road capability, the high ground clearance makes getting in and out of the vehicle inconvenient. Therefore, side steps that facilitate passenger entry and exit have become particularly important. To address this issue, some vehicles on the market are equipped with a device called an automatic retractable step. This device allows women and children to get in and out of the vehicle without affecting its passability or lowering its height. Because the step is automatic, this device generally has an anti-pinch function to enhance safety. However, there are currently no relevant standards for calibrating the anti-pinch capability of the step, resulting in some products having excessive anti-pinch force, or even failing to prevent pinching and causing injury. Therefore, this application presents a retractable step anti-pinch calibration device to calibrate the anti-pinch capability of the step.

[0044] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment provides an anti-pinch calibration device for a retractable pedal, including a force gauge, a calibration module, and a host computer;

[0045] A force gauge is placed on the pedal to measure the current anti-pinch force during the folding or unfolding of the pedal;

[0046] The calibration module is connected to the motor, force gauge and host computer respectively. It is used to obtain the current anti-pinch force and the Hall signal generated by the motor during operation within the preset anti-pinch range, and send the current anti-pinch force and Hall signal to the host computer.

[0047] The host computer is used to calibrate the Hall signal within the preset anti-pinch range and determine whether the current anti-pinch force is within the preset current calibration range. If yes, the calibration of the anti-pinch force of the pedal is completed; if no, the current calibration range is updated through the anti-pinch force algorithm, and the step of determining whether the current anti-pinch force is within the preset current calibration range is returned.

[0048] In calibrating the anti-pinch capability of the pedal, this embodiment specifically calibrates the anti-pinch range and anti-pinch force to ensure that the anti-pinch force meets the preset requirements within the anti-pinch range as much as possible, thereby ensuring that the pedal is anti-pinch and will not pinch or injure people during folding or unfolding.

[0049] In this embodiment, the pedal is a pedal with anti-pinch protection on both sides, one side along the pedal retraction direction and the other side along the pedal unfolding direction. The anti-pinch range can be from the length of the pedal when fully folded to its length when fully unfolded. For example, if the length of the pedal when fully folded is 0mm and the length when fully unfolded is 100cm, then the anti-pinch range is 0 to 100cm. However, in practice, on the side along the pedal retraction direction, the length of the obstacle may be greater than the distance between the vehicle floor and the pedal, so anti-pinch protection is unnecessary within this distance. On the side along the pedal unfolding direction, the pedal may encounter a fixed rod that stops its unfolding. Therefore, anti-pinch protection is also unnecessary within this distance. That is, the anti-pinch range has redundancy in the length of the pedal from retraction to unfolding. Therefore, the anti-pinch range can be appropriately reduced. The lower limit of the anti-pinch range is usually determined based on the length of the smallest obstacle, generally 0.4cm. For example, if the upper limit of the anti-pinch range is 90cm, then the preset anti-pinch range after removing redundancy is 0.4cm to 90cm.

[0050] To prevent the calibrated anti-pinch force from being too high and potentially causing injury instead of preventing pinching, a pre-set calibration range for the anti-pinch force is established. This range is not limited and is determined based on actual conditions. Currently, the anti-pinch force calibration for car windows is 100N. This calibration can be used as a reference. Car windows generally prevent fingers from being pinched, while pedals generally prevent toes from being pinched, resulting in a relatively larger force-bearing area. Therefore, the anti-pinch force calibration for pedals can be set to 200N. Generally, during the anti-pinch force test, the force gauge should be kept relatively fixed, with the pedal striking the fixed rod. Improper use, such as the force gauge moving during the test or applying a reverse force, will lead to inaccurate anti-pinch force testing. Therefore, in this embodiment, the force gauge is placed flat on the pedal, gently held by hand, and the pedal is retracted, causing the force gauge to strike the fixed rod, thus accurately measuring the anti-pinch force. The specific position of the force gauge on the pedal is not limited and is determined based on actual conditions. The selected force gauge is not limited, but considering the structure of the pedal, an S-type force gauge is preferred. The S-shaped test force is ideal for calibrating the anti-pinch force of pedals. Firstly, it is easy to fix on the pedal, requiring only a light hand support. Secondly, the range can reach 500N, which can cover the needs of the pedal.

[0051] To ensure the pedal can prevent pinching at all positions within the anti-pinch range, a force gauge can be used to measure the anti-pinch force at each position within the range. The calibration module acquires the anti-pinch force measured by the force gauge at each position and uploads it to the host computer. The host computer compares the anti-pinch force with the calibrated anti-pinch force. If the anti-pinch force is the same as the calibrated anti-pinch force, the calibration of the anti-pinch force is completed. If the anti-pinch force is different from the calibrated anti-pinch force, the current calibration range is updated through the anti-pinch force algorithm, and the system continues to determine whether the anti-pinch force is the same as the calibrated anti-pinch force.

[0052] To calibrate the anti-pinch range and force, a calibration module is connected to the motor and a host computer to acquire the current anti-pinch force during the folding or unfolding of the pedal and the Hall signals generated by the motor during operation within the preset anti-pinch range. The current anti-pinch force and Hall signals are then sent to the host computer, which performs calibration based on the Hall signals generated during motor operation (e.g., 0.4cm corresponds to 1 Hall signal). The motor used (side pedal motor) is generally a Hall motor, integrating Hall signals. During motor operation, it emits Hall pulse waveforms. The calibration module can implement the anti-pinch function through Hall signals. Specifically, it calculates the motor speed by acquiring Hall signals. When the side pedal encounters an obstacle, the speed decreases. The software identifies the speed decrease to determine if there is an obstacle; if so, it reverses the movement, thus achieving the anti-pinch function. The calibration module is generally modified from a side pedal controller. Because the calibration module needs to upload calibration data (at least including the anti-pinch range and force) to the host computer, a communication function needs to be added. For example, adding a Data Acquisition (DAQ) communication function to the controller qualifies it as a calibration module. The host computer is typically a personal computer (PC) that can send calibration commands and receive calibration data transmitted from the calibration module. The host computer is used to calibrate the anti-pinch range and anti-pinch force, and also to conveniently check whether the calibration is appropriate.

[0053] The anti-pinch calibration device for a retractable pedal provided in this embodiment includes a force gauge, a calibration module, and a host computer. The force gauge is placed on the pedal and is used to measure the current anti-pinch force during the pedal's folding or unfolding process. The calibration module is connected to the motor, the force gauge, and the host computer, respectively, and is used to acquire the current anti-pinch force and the Hall signal generated by the motor during operation within a preset anti-pinch range, and send the current anti-pinch force and the Hall signal to the host computer. The host computer is used to calibrate the Hall signal within the preset anti-pinch range and determine whether the current anti-pinch force is within the preset current calibration range. If so, the calibration of the pedal's anti-pinch force is completed; if not, the current calibration range is updated through the anti-pinch force algorithm, and the process of determining whether the current anti-pinch force is within the preset current calibration range is returned. Therefore, this device achieves the calibration of the pedal's anti-pinch range and anti-pinch force, ensuring that the pedal's anti-pinch capability meets the calibration value, thereby minimizing the possibility of excessive or insufficient anti-pinch force and ensuring that the pedal will not cause injury to the user during extension and retraction, thus improving the user experience.

[0054] When calibrating the pedal's anti-pinch force, the calibration is considered complete only when the anti-pinch force is met at all positions within the anti-pinch range. While measuring and judging the anti-pinch force at all positions allows for accurate calibration, it also requires a considerable amount of time, reducing the efficiency of the calibration. Therefore, in practice, a preferred implementation is that the calibration module for obtaining the current anti-pinch force includes:

[0055] The calibration module is used to obtain the current anti-pinch force measured by the force gauge at the first target position; wherein, the first target position is the position where the pedal is located at the lower limit of the preset anti-pinch range at a first preset distance, the upper limit of the preset anti-pinch range, the upper limit of the preset anti-pinch range, and the middle position of the position at the lower limit of the preset anti-pinch range at a first preset distance.

[0056] The value of the first preset distance is not limited, but the position of the first preset distance from the lower limit of the preset anti-pinch range must be smaller than the position of the center value of the anti-pinch range. In this embodiment, three key test positions are selected. Assuming the anti-pinch range is 4mm to 90cm, the position of the first preset distance from the lower limit of the preset anti-pinch range can be 10cm, the position of the upper limit can be 90cm, and the position of the center of the anti-pinch range can be 50cm.

[0057] The embodiment provides three key test positions: the position at the first preset distance from the lower limit of the preset anti-pinch range, the position at the upper limit of the preset anti-pinch range, and the midpoint between the position at the upper limit of the preset anti-pinch range and the position at the first preset distance from the lower limit of the preset anti-pinch range. Compared to methods that test all positions within the anti-pinch range or select test positions that are not representative, the three key test positions selected in this embodiment can improve the efficiency of pedal calibration.

[0058] Based on the test locations selected in the above embodiments, calibrating each selected test location would also lead to a decrease in the efficiency of pedal calibration. Therefore, the preferred embodiment is that the pedal and the vehicle on which the pedal is located are connected by two fixed points; the first target position is the position at which the pedal is located at the middle position of the position at the lower limit of the preset anti-pinch range (first preset distance), the position at the upper limit of the preset anti-pinch range, the position at the upper limit of the preset anti-pinch range, and the position at the lower limit of the preset anti-pinch range (first preset distance), respectively, and the position at the second preset distance from both sides of the two fixed points and the position of the center point of the pedal.

[0059] In practice, the vehicle floor and the pedal are connected by two fixed points. Since the anti-pinch force is relatively large near the fixed points, the test points must be located near the fixed points while covering the entire pedal. Therefore, in this embodiment, the test points are selected at the positions of the second preset distance from both sides of the two fixed points and the center point of the pedal, that is, five test points are selected at each test position. The second preset distance is not limited, as long as the selected test points are located on the pedal. Preferably, the test points are near the fixed points, that is, the selected second preset distance cannot be too large. Figure 1 This is a schematic diagram illustrating the location of a test point at a certain test location, as provided in an embodiment of this application. For example... Figure 1 As shown, the two sides of the two fixed points 02 and the center point of the side pedal 5 are selected as test points 01, that is, five test points 01 are preferably selected at a certain test position. Combining the three test positions selected in the above embodiment, there are five test points at each test position. Therefore, the calibration of the anti-pinch force of the pedal is actually the calibration of the anti-pinch force of these 15 test points.

[0060] This embodiment provides a method for calibrating the anti-pinch force of the pedal based on the selected test points, which can greatly improve the efficiency and accuracy of calibration.

[0061] In practice, the electrical signal of the S-type force gauge is relatively large, while the electrical signal of the calibration module is relatively small. In order to enable the electrical signal measured by the force gauge to be received by the calibration module and to facilitate the user to view the current anti-pinch force, the preferred embodiment is that the calibration device also includes: a step-down module and a display.

[0062] The step-down module is connected to the force gauge and the display respectively. It is used to convert the electrical signal of the current anti-pinch force measured by the force gauge into an electrical signal for the calibration module to receive; and to display the electrical signal received by the calibration module through the display.

[0063] If the S-type force gauge has a 10V electrical signal and the calibration module has a 5V electrical signal, the step-down module can collect the force gauge's electrical signal and convert it into a signal that the calibration module can receive. The converted signal is then displayed on a monitor, allowing the user to intuitively understand the current anti-pinch force.

[0064] Since the calibration module needs to upload calibration data to the host computer, a preferred implementation is that the calibration module is connected to a Controller Area Network (CAN) module, and the CAN communication module communicates with the host computer via a Universal Serial Bus (USB) interface. There are no limitations on the frequency or time of the calibration module uploading calibration data, as long as the calibration data can be uploaded to the host computer. However, preferably, the calibration data is uploaded immediately after it is received, enabling the host computer to perform calibration promptly and improving calibration efficiency.

[0065] The above describes an anti-pinch calibration device for a retractable pedal. Figure 2 A flowchart illustrating an anti-pinch calibration method for a retractable pedal provided in this application embodiment is shown. This method is applied to a calibration device comprising a force gauge, a calibration module, and a host computer. The force gauge is placed on the pedal, and the calibration module is connected to the motor, the force gauge, and the host computer. The anti-pinch calibration method for the retractable pedal includes:

[0066] S10: Obtain the current anti-pinch force obtained by the calibration module and the Hall signal generated by the motor during operation within the preset anti-pinch range;

[0067] Among them, the current anti-pinch force is the anti-pinch force measured by the force gauge during the folding or unfolding of the pedal;

[0068] S11: Hall signal within the preset anti-pinch range;

[0069] S12: Determine whether the current anti-pinch force is within the preset current calibration range; if yes, proceed to step S13; if no, proceed to step S14.

[0070] S13: Complete the calibration of the anti-pinch force of the pedal;

[0071] S14: Update the current calibration range using the anti-pinch force algorithm and return to step S12.

[0072] The anti-pinch calibration method for the retractable pedal provided in this embodiment has corresponding technical features to the anti-pinch calibration device for the retractable pedal mentioned above. The embodiments of the anti-pinch calibration device for the retractable pedal have been described in detail above, and the embodiments of the anti-pinch calibration method for the retractable pedal will not be repeated here, and both have the same beneficial effects.

[0073] In the above embodiments, the anti-pinch calibration method for retractable pedals was described. This application also provides embodiments of an anti-pinch calibration device for retractable pedals. It should be noted that this application describes the embodiments of the device from two perspectives: one based on functional modules and the other based on hardware.

[0074] Figure 3 This is a structural diagram of an anti-pinch calibration device for a retractable pedal provided in one embodiment of this application. The device is applied to a calibration system comprising a force gauge, a calibration module, and a host computer. The force gauge is placed on the pedal, and the calibration module is connected to the motor, the force gauge, and the host computer. This embodiment, based on functional modules, includes:

[0075] The acquisition module 10 is used to acquire the current anti-pinch force obtained by the calibration module and the Hall signal generated by the motor during operation within the preset anti-pinch range; wherein, the current anti-pinch force is the anti-pinch force measured by the force gauge during the folding or unfolding of the pedal;

[0076] The first calibration module 11 is used to calibrate the Hall signal within the preset anti-pinch range;

[0077] The judgment module 12 is used to determine whether the current anti-pinch force is within the preset current calibration range; if yes, the second calibration module 13 is triggered; if no, the update module 14 is triggered.

[0078] The second calibration module 13 is used to calibrate the anti-pinch force of the pedal;

[0079] The update module 14 is used to update the current calibration range through the anti-pinch force algorithm and trigger the judgment module 12.

[0080] The anti-pinch calibration device for the retractable pedal provided in this embodiment has the same technical features as the anti-pinch calibration method for the retractable pedal mentioned above, and the effect is the same.

[0081] Figure 4 This is a structural diagram of an anti-pinch calibration device for a retractable pedal according to another embodiment of this application. This embodiment is based on a hardware perspective, such as... Figure 4 As shown, the anti-pinch calibration device for the retractable pedal includes:

[0082] Memory 20 is used to store computer programs;

[0083] The processor 21 is configured to execute a computer program to implement the steps of the method for anti-pinch calibration of the retractable pedal as described in the above embodiments.

[0084] The anti-pinch calibration device for the retractable pedal provided in this embodiment can include, but is not limited to, smartphones, tablets, laptops, or desktop computers.

[0085] The processor 21 may include one or more processing cores, such as a quad-core processor or an octa-core processor. The processor 21 may be implemented using at least one of the following hardware forms: Digital Signal Processor (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 21 may also include a main processor and a coprocessor. The main processor, also known as the Central Processing Unit (CPU), is used to process data in the wake-up state; the coprocessor is a low-power processor used to process data in the standby state. In some embodiments, the processor 21 may integrate a Graphics Processing Unit (GPU), which is responsible for rendering and drawing the content to be displayed on the screen. In some embodiments, the processor 21 may also include an Artificial Intelligence (AI) processor, which is used to handle computational operations related to machine learning.

[0086] The memory 20 may include one or more computer-readable storage media, which may be non-transitory. The memory 20 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In this embodiment, the memory 20 is used to store at least the following computer program 201, which, after being loaded and executed by the processor 21, is capable of implementing the relevant steps of the anti-pinch calibration method for the retractable pedal disclosed in any of the foregoing embodiments. In addition, the resources stored in the memory 20 may also include an operating system 202 and data 203, and the storage method may be temporary or permanent storage. The operating system 202 may include Windows, Unix, Linux, etc. The data 203 may include, but is not limited to, the data involved in the aforementioned anti-pinch calibration method for the retractable pedal.

[0087] In some embodiments, the anti-pinch calibration device for the retractable pedal may further include a display screen 22, an input / output interface 23, a communication interface 24, a power supply 25, and a communication bus 26.

[0088] Those skilled in the art will understand that Figure 4 The structure shown does not constitute a limitation on the anti-pinch calibration device for retractable pedals and may include more or fewer components than shown.

[0089] The retractable pedal anti-pinch calibration device provided in this application includes a memory and a processor. When the processor executes the program stored in the memory, it can implement the following method: the retractable pedal anti-pinch calibration method, with the same effect as above.

[0090] This application also provides an embodiment corresponding to a computer-readable storage medium. The computer-readable storage medium stores a computer program, which, when executed by a processor, performs the steps described in the above method embodiments.

[0091] It is understood that if the methods in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and executes all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0092] The computer-readable storage medium provided in this application includes the aforementioned anti-pinch calibration method for retractable pedals, with the same effect.

[0093] To enable those skilled in the art to better understand the present application, the following description is provided in conjunction with the appendix. Figure 5 The present application will be further described in detail with reference to specific embodiments. Figure 5 A structural diagram of the calibration system provided in the embodiments of this application is shown below. Figure 5As shown, the calibration system includes a PC (1), a CANcase (2), a calibration module (3), a side pedal motor (4), a side pedal (5), an anti-pinch force signal processing and display (6), and an S-type force gauge (7). The PC sends calibration commands and receives calibration data from the calibration module via the CANcase through USB communication. The CANcase is a hardware module developed by Vector for CAN signal transmission and reception. This module can also be replaced by similar communication modules developed by other companies, such as the CAN communication module from Zhou Ligong. The calibration module is generally modified from a side pedal controller; adding DAQ communication functionality makes it a calibration module. The side pedal motor is generally a Hall motor, integrating Hall signals. During motor operation, it emits Hall pulse waveforms, which can be used to achieve the anti-pinch function. The side pedal motor drives the side pedal to extend and retract via gear transmission. The anti-pinch force signal processing and display collects the electrical signals from the force gauge and converts them into electrical signals that the calibration module can receive. It can also display the current tested anti-pinch force. The S-type force gauge can be placed on the pedal for convenient testing of the anti-pinch force when the pedal is folded and unfolded.

[0094] As can be seen, this application provides a calibration method suitable for electric telescopic pedal systems, which avoids the problem of inconsistent calibration results due to the lack of unified regulations on the anti-pinch force and testing methods. During calibration, an S-type force gauge suitable for calibrating the pedal's anti-pinch force was selected. Fifteen key test points were selected, and the S-type force gauge was kept relatively fixed at each test point for force measurement. This method can complete the calibration of the pedal with high efficiency and accuracy.

[0095] The foregoing provides a detailed description of the anti-pinch calibration device, method, and medium for the retractable pedal provided in this application. The various embodiments are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to in the method section. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

[0096] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A retractable pedal anti-pinch calibration device, characterized in that, Includes a force gauge, calibration module, and host computer; The force gauge is placed on the pedal and is used to measure the current anti-pinch force during the folding or unfolding of the pedal; The calibration module is connected to the motor, the force gauge, and the host computer respectively, and is used to acquire the current anti-pinch force and the Hall signal generated by the motor during operation within the preset anti-pinch range, and send the current anti-pinch force and the Hall signal to the host computer. The host computer is used to calibrate the Hall signal within the preset anti-pinch range and determine whether the current anti-pinch force is within the preset current calibration range. If so, the calibration of the anti-pinch force of the pedal is completed. If not, the current calibration range is updated using the anti-pinch force algorithm, and the step of determining whether the current anti-pinch force is within the preset current calibration range is returned. The calibration module is used to obtain the current anti-pinch force, including: The calibration module is used to obtain the current anti-pinch force measured by the force gauge at the first target position; wherein, the first target position is the midpoint between the position where the pedal is at the lower limit of the preset anti-pinch range (first preset distance), the upper limit of the preset anti-pinch range, the upper limit of the preset anti-pinch range, and the position at the lower limit of the preset anti-pinch range (first preset distance).

2. The anti-pinch calibration device for the retractable pedal according to claim 1, characterized in that, The pedal and the vehicle on which the pedal is located are connected by two fixed points; the first target position is the position of the pedal at the middle position of the position of the lower limit of the preset anti-pinch range, the position of the upper limit of the preset anti-pinch range, the position of the upper limit of the preset anti-pinch range and the position of the lower limit of the preset anti-pinch range, respectively, the position of the pedal at the second preset distance from both sides of the two fixed points and the position of the center point of the pedal.

3. The anti-pinch calibration device for the retractable pedal according to claim 1 or 2, characterized in that, The force gauge is an S-type force gauge.

4. The anti-pinch calibration device for the retractable pedal according to claim 3, characterized in that, The device also includes: a step-down module and a display; The step-down module is connected to the force gauge and the display respectively, and is used to convert the electrical signal of the current anti-pinch force measured by the force gauge into an electrical signal for the calibration module to receive; and to display the electrical signal for the calibration module to receive through the display.

5. The anti-pinch calibration device for the retractable pedal according to claim 4, characterized in that, The calibration module is connected to the CAN communication module, and the CAN communication module communicates with the host computer via a USB interface.

6. A method for calibrating the anti-pinch function of a retractable pedal, characterized in that, A calibration device comprising a force gauge, a calibration module, and a host computer is used, wherein the force gauge is placed on a pedal, and the calibration module is connected to a motor, the force gauge, and the host computer respectively; the method includes: The calibration module obtains the current anti-pinch force and the Hall signal generated by the motor during operation within the preset anti-pinch range; wherein, the current anti-pinch force is the anti-pinch force measured by the force gauge during the folding or unfolding of the pedal; The Hall signal within the preset anti-pinch range is calibrated; Determine whether the current anti-pinch force is within the preset current calibration range; If so, then the calibration of the anti-pinch force of the pedal is completed; If not, the current calibration range is updated using the anti-pinch force algorithm, and the step of determining whether the current anti-pinch force is within the preset current calibration range is returned. The calibration module is used to obtain the current anti-pinch force, including: The current anti-pinch force measured by the force gauge at the first target position is obtained; wherein, the first target position is the midpoint between the position where the pedal is at the lower limit of the preset anti-pinch range (first preset distance), the upper limit of the preset anti-pinch range, the upper limit of the preset anti-pinch range, and the position at the lower limit of the preset anti-pinch range (first preset distance).

7. A retractable pedal anti-pinch calibration device, characterized in that, A calibration device comprising a force gauge, a calibration module, and a host computer, wherein the force gauge is placed on a pedal, and the calibration module is connected to a motor, the force gauge, and the host computer respectively; the device includes: The acquisition module is used to acquire the current anti-pinch force obtained by the calibration module and the Hall signal generated by the motor during operation within the preset anti-pinch range; wherein, the current anti-pinch force is the anti-pinch force measured by the force gauge during the folding or unfolding of the pedal; The first calibration module is used to calibrate the Hall signal within the preset anti-pinch range; The judgment module is used to determine whether the current anti-pinch force is within the preset current calibration range; if yes, the second calibration module is triggered; if no, the update module is triggered. The second calibration module is used to calibrate the anti-pinch force of the pedal; The update module is used to update the current calibration range through the anti-pinch force algorithm and return the step of determining whether the current anti-pinch force is within the preset current calibration range; The calibration module is used to obtain the current anti-pinch force, including: The current anti-pinch force measured by the force gauge at the first target position is obtained; wherein, the first target position is the midpoint between the position where the pedal is at the lower limit of the preset anti-pinch range (first preset distance), the upper limit of the preset anti-pinch range, the upper limit of the preset anti-pinch range, and the position at the lower limit of the preset anti-pinch range (first preset distance).

8. A retractable pedal anti-pinch calibration device, characterized in that, include: Memory, used to store computer programs; A processor, configured to implement the steps of the anti-pinch calibration method for the retractable pedal as described in claim 6 when executing the computer program.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the anti-pinch calibration method for the retractable pedal as described in claim 6.

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