Brake pedal sticking test method, device, electronic equipment and storage medium

Abstract

The application relates to a brake pedal jam test method and device, electronic equipment and a storage medium, wherein the method comprises the following steps: detecting the actual intention of a driver; when it is detected that the actual intention is an acceleration intention, determining the interval to which the pedal jam interval belongs based on the fault type reported by the vehicle, obtaining pedal jam information and / or test data of the pedal; and according to the pedal jam information and / or test data, identifying the pedal jam interval and the corresponding distribution, and generating test data support of the pedal setting stroke and / or setting support data of the pedal return force. According to the application, the pedal jam interval and the corresponding distribution can be identified based on the actual intention of the driver and the fault type reported by the vehicle, so that the pedal return jam characteristics can be mastered, the driving experience of the user is improved, and the comprehensive safety protection level in the driving process is improved.

Description

Technical Field

[0001] This application relates to the field of automotive electronics technology, and in particular to a method, apparatus, electronic device, and storage medium for testing brake pedal sticking. Background Technology

[0002] With the widespread adoption of electric brake boosters, especially the rapid growth in electric vehicle production and sales in recent years, more and more vehicles are using electric boosters to replace traditional vacuum boosters. Some electronic boosters have even eliminated the pedal switch, employing two pushrod travel sensors to output brake position signals. These signals are then sent to the public CAN (Controller Area Network). Controllers such as the VCU (Vehicle Control Unit) and ACC (Adaptive Cruise Control) use this signal as input to the driver's braking intention to determine power output and which driving mode to enter. Therefore, this signal output must be extremely safe and reliable. For decoupled electronic boosters, the pushrod return force is much smaller than that of traditional vacuum boosters. Furthermore, during the pedal return phase, the return force gradually decreases as the pedal travel decreases. Since the brake pedal and electronic booster are connected mechanically, there is some friction. Therefore, there are instances where the brake pedal cannot always return to the absolute zero position.

[0003] In related technologies, such as patent CN115285093A "A self-learning method and electronic device for zero position of push rod of electronic power booster for automobile", the effective learning value is determined based on the zero position data of the push rod, and the target zero position learning value is determined in combination with the currently used zero position reference value. The zero position of the push rod is calculated and updated through self-learning.

[0004] However, in related technologies, the braking system travel is adjusted according to the zero position of the pedal based on dynamic correction, which affects the consistency of the brake pedal feel. Using software strategies to deal with possible hardware problems cannot accurately grasp the pedal return characteristics, endangering driving safety, and urgently needs to be improved. Summary of the Invention

[0005] This application provides a method, apparatus, electronic device, and storage medium for testing brake pedal sticking, in order to solve the problems in related technologies, such as the brake system travel being modified according to the zero position correction based on dynamic correction of the pedal, affecting the consistency of brake pedal feel, the inability to accurately grasp the pedal return characteristics due to the use of software strategies to deal with possible hardware problems, and the endangerment of driving safety.

[0006] The first aspect of this application provides a method for testing brake pedal sticking, comprising the following steps: detecting the driver's actual intention; when the actual intention is detected to be an acceleration intention, determining the range to which the pedal sticking range belongs based on the fault type reported by the vehicle, and obtaining pedal sticking information and / or test data; and identifying the pedal sticking range and its corresponding distribution based on the pedal sticking information and / or the test data, and generating test data support for the pedal positioning stroke and / or setting support data for the pedal return force.

[0007] Based on the above-mentioned technical means, the embodiments of this application can identify the pedal sticking range and corresponding distribution based on the driver's actual intention and the fault type reported by the vehicle, thereby grasping the characteristics of pedal return sticking, avoiding occasional slight sticking of the brake pedal during driving and failing to accurately output the set signal, which would affect driving safety, enhance the user's driving experience, and improve the overall safety protection level during driving.

[0008] Optionally, in one embodiment of this application, identifying the driver's actual intention includes: obtaining the vehicle's actual gear position and collecting the actual opening degree and pedal speed of the accelerator pedal; when the actual gear position is a forward gear or a reverse gear, the actual opening degree is greater than a preset opening degree, and the pedal speed is within a preset range, determining that the actual intention is the acceleration intention.

[0009] Based on the above-mentioned technical means, the embodiments of this application can identify the driver's actual intention by obtaining the actual gear position of the vehicle and the actual opening and speed of the accelerator pedal, thereby improving the intelligence of the vehicle, making the identification results more accurate, and enhancing driving safety.

[0010] Optionally, in one embodiment of this application, identifying the pedal sticking range and its corresponding distribution based on the pedal sticking information and / or the test data includes: determining the pedal sticking range by the current displacement and absolute zero position of the push rod.

[0011] Based on the above-mentioned technical means, the embodiments of this application can determine the pedal sticking range according to the current displacement and absolute zero position of the push rod, thereby more accurately grasping the characteristics of pedal return sticking, improving the intelligence of the vehicle, and improving the overall safety protection level during driving.

[0012] Optionally, in one embodiment of this application, determining the range to which the pedal jamming range belongs based on the fault type reported by the vehicle includes: storing environmental variables and freeze frames each time a fault is reported, wherein the environmental variables and freeze frames include fault identifiers for each stroke push rod jamming, cumulative number of times each stroke push rod jamming is identified, the historical maximum push rod jamming range, and the specific values ​​of the current push rod displacement and absolute zero point for each recorded fault.

[0013] Based on the above technical means, the embodiments of this application can store environmental variables and freeze frames when reporting fault types, thereby helping to determine the range to which the pedal jamming range belongs, making the identification results more accurate, improving the intelligence of the vehicle, and ensuring safety during driving.

[0014] A second aspect of this application provides a brake pedal sticking test device, comprising: a detection module for detecting the driver's actual intention; an acquisition module for determining the pedal sticking interval based on the fault type reported by the vehicle when the actual intention is detected as an acceleration intention, and obtaining pedal sticking information and / or test data; and a generation module for identifying the pedal sticking interval and its corresponding distribution based on the pedal sticking information and / or the test data, and generating test data support for the pedal positioning stroke and / or setting support data for the pedal return force.

[0015] Optionally, in one embodiment of this application, the detection module includes: an acquisition unit, configured to acquire the actual gear position of the vehicle and collect the actual opening degree and pedal speed of the accelerator pedal; and a determination unit, configured to determine that the actual intention is the acceleration intention when the actual gear position is a forward gear or a reverse gear, the actual opening degree is greater than a preset opening degree, and the pedal speed is within a preset range.

[0016] Optionally, in one embodiment of this application, the generation module is specifically used to determine the pedal sticking range based on the current displacement and absolute zero position of the push rod.

[0017] Optionally, in one embodiment of this application, the acquisition module is specifically used to store environment variables and freeze frames each time a fault is reported, wherein the environment variables and freeze frames include fault identifiers for each stroke push rod jamming, cumulative number of times each stroke push rod jamming is identified, historical maximum push rod jamming range, and specific values ​​of the current push rod displacement and absolute zero position for each recorded fault.

[0018] A third aspect of this application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the brake pedal sticking test method as described in the above embodiments.

[0019] A fourth aspect of this application provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the brake pedal sticking test method as described in the above embodiments.

[0020] The beneficial effects of the embodiments of this application are as follows:

[0021] (1) Mastering the characteristics of pedal return sticking enhances the user's driving experience and improves the overall safety protection level during driving;

[0022] (2) Accurately identify the driver's actual intentions, ensure the consistency of the brake pedal feel during driving, and enhance driving safety;

[0023] (3) When reporting fault types, store environment variables and freeze frames to make the pedal jamming range more accurate and ensure the reliability of support data.

[0024] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0026] Figure 1 This is a flowchart of a brake pedal sticking test method according to an embodiment of this application;

[0027] Figure 2 This is a schematic diagram illustrating the working principle of the brake pedal sticking test method according to an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of a brake pedal sticking test device according to an embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application.

[0030] Among them: 10- Brake pedal sticking test device; 100- Detection module, 200- Acquisition module, 300- Generation module; 401- Memory, 402- Processor, 403- Communication interface. Detailed Implementation

[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0032] The following description, with reference to the accompanying drawings, outlines a brake pedal sticking test method, apparatus, electronic device, and storage medium according to embodiments of this application. Addressing the issues raised in the background section regarding related technologies where dynamic correction of the pedal zero position leads to adjustments in the braking system travel as the zero position is corrected, affecting the consistency of brake pedal feel, and the inability to accurately grasp pedal return characteristics due to software-based solutions for potential hardware problems, thus jeopardizing driving safety, this application provides a brake pedal sticking test method. In this method, embodiments of this application can identify the pedal sticking range and its corresponding distribution based on the driver's actual intention and the vehicle's reported fault type, thereby understanding the characteristics of pedal return sticking, enhancing the user's driving experience, and improving the overall safety level during driving. This solves the problems in related technologies where dynamic correction of the pedal zero position leads to adjustments in the braking system travel as the zero position is corrected, affecting the consistency of brake pedal feel, and the inability to accurately grasp pedal return characteristics due to software-based solutions for potential hardware problems, thus jeopardizing driving safety.

[0033] Specifically, Figure 1 This is a schematic flowchart of a brake pedal sticking test method provided in an embodiment of this application.

[0034] like Figure 1 As shown, the brake pedal sticking test method includes the following steps:

[0035] In step S101, the driver's actual intention is detected.

[0036] It is understandable that a driver's actual intention can be to accelerate, decelerate, or stop, etc., without specific restrictions.

[0037] In practical implementation, the embodiments of this application can detect the driver's actual intention by collecting data such as vehicle gear position through sensors, thereby making the recognition results more accurate, improving driving safety, and enhancing vehicle intelligence. The specific implementation method for detecting the driver's actual intention will be described in detail below.

[0038] Optionally, in one embodiment of this application, identifying the driver's actual intention includes: obtaining the actual gear of the vehicle, and collecting the actual opening degree and pedal speed of the accelerator pedal; when the actual gear is a forward gear or a reverse gear, the actual opening degree is greater than a preset opening degree and the pedal speed is within a preset range, the actual intention is determined to be an acceleration intention.

[0039] Understandably, recognizing the driver's actual intention can help accurately identify the pedal sticking range and distribution, thus providing experimental data to support the determination of a reasonable pedal travel distance and the setting of the pedal return force. Here, the specific implementation method for detecting the driver's actual intention is described in detail.

[0040] Specifically, this application embodiment can obtain the actual gear position of the vehicle through on-board sensors such as speed sensors and acceleration sensors, and collect the actual opening degree and pedal speed of the accelerator pedal. When the actual gear position of the vehicle is forward or reverse, and the actual opening degree of the accelerator pedal is greater than a certain opening degree, such as 5%, and the pedal speed is between -20 mmps and 15 mmps, it can be determined that the driver's actual intention is to accelerate, making the experimental data more accurate and providing data support for accurately finding the pedal sticking range and distribution.

[0041] The preset opening and preset range can be set by relevant technical personnel according to the actual situation, and no specific restrictions are made here.

[0042] In step S102, when the actual intention is detected to be acceleration intention, the range to which the pedal sticking range belongs is determined based on the fault type reported by the vehicle, and the pedal sticking information and / or test data are obtained.

[0043] Understandably, during the test, different pedal sticking ranges correspond to different fault types. Therefore, in practical applications, when the driver's actual intention is detected as acceleration, the corresponding sticking range, as well as the corresponding pedal sticking information and / or test data, can be quickly determined through the fault type reported by the vehicle.

[0044] For example, when the driver's actual intention is detected as acceleration, this embodiment of the application can determine the pedal sticking range based on the fault type reported by the vehicle. For instance, when the fault type reported by the vehicle is fault A, the pedal sticking range can be determined to be greater than 4% and less than 5%; when the fault type reported by the vehicle is fault B, the pedal sticking range can be determined to be greater than 5% and less than 6%; when the fault type reported by the vehicle is fault C, the pedal sticking range can be determined to be greater than 6% and less than 7%; when the fault type reported by the vehicle is fault D, the pedal sticking range can be determined to be greater than 7% and less than 8%; and when the fault type reported by the vehicle is fault E, the pedal sticking range can be determined to be greater than 8% and less than 9%. When the vehicle reports fault type F, the pedal sticking range can be determined to be greater than 9% and less than 10%; when the vehicle reports fault type G, the pedal sticking range can be determined to be greater than 10% and less than 11%; when the vehicle reports fault type H, the pedal sticking range can be determined to be greater than 11% and less than 12%; when the vehicle reports fault type I, the pedal sticking range can be determined to be greater than 12% and less than 13%; and when the vehicle reports fault type J, the pedal sticking range can be determined to be greater than 13% and less than 14%. This allows the pedal sticking situation to be monitored in real time through a big data platform during the test, ensuring the safety of the vehicle during operation.

[0045] Optionally, in one embodiment of this application, determining the range to which the pedal jamming range belongs based on the fault type reported by the vehicle includes: storing environment variables and freeze frames each time a fault is reported, wherein the environment variables and freeze frames include the fault identifier of each stroke push rod jamming, the cumulative number of times each stroke push rod jamming is identified, the historical maximum push rod jamming range, and the specific values ​​of the current push rod displacement and absolute zero point for each recorded fault.

[0046] Understandably, the absolute zero position can be the position where the current push rod displacement is zero, thus allowing the calculation of the push rod's displacement position change.

[0047] In actual execution, whenever a fault is reported, this application embodiment can store environmental variables and freeze frames, such as the flag for each stroke push rod jamming fault, the cumulative number of times each stroke push rod jamming is identified, the historical maximum push rod jamming zone, and the specific values ​​of the current push rod displacement Psh1 and absolute zero Psh1 for each recorded fault. This allows for real-time understanding of the pedal jamming situation through a big data platform or statistical analysis of the entire test data after the test, accurately identifying the pedal jamming zone and its distribution, and ensuring driving safety.

[0048] In step S103, the pedal jamming range and its corresponding distribution are identified based on the pedal jamming information and / or test data, and test data support for the pedal positioning stroke and / or setting support data for the pedal return force are generated.

[0049] Understandably, by conducting experiments on the characteristics of pedal position lag and performing timely statistical analysis, the characteristics of pedal position lag can be understood, thereby avoiding occasional slight lag in the brake pedal return stroke after vehicle production, which could prevent the accurate output of the position signal and affect driving safety.

[0050] In actual implementation, the embodiments of this application can use a big data platform to understand the pedal jamming situation in real time, such as pedal jamming information, or perform statistical analysis on the entire test data after the test, and can accurately find the pedal jamming range and distribution, thereby providing test data support for determining a reasonable pedal positioning stroke, and also providing data support for setting the pedal return force, improving the accuracy of parameter setting and ensuring driving safety.

[0051] Optionally, in one embodiment of this application, identifying the pedal sticking range and its corresponding distribution based on pedal sticking information and / or test data includes: determining the pedal sticking range by the current displacement and absolute zero position of the push rod.

[0052] Specifically, after identifying the driver's actual intention, this embodiment of the application can determine the pedal sticking range based on the current displacement and absolute zero position of the push rod, thereby making the calculation of the pedal sticking range more accurate and the data more reliable. The calculation formula for the pedal sticking range is as follows.

[0053] Zone = Psh1 - Psh1

[0054] Where Zone is the pedal sticking range, Psh1 is the current push rod displacement, and Psh1 is the absolute zero position.

[0055] Combination Figure 2 As shown, the working principle of the brake pedal sticking test method of this application embodiment is explained in detail with an example.

[0056] Specifically, in this embodiment, the actual gear position of the vehicle can be obtained through onboard sensors such as speed sensors and acceleration sensors, and the actual opening degree and pedal speed of the accelerator pedal can be collected. When the actual gear position of the vehicle is forward or reverse, and the actual opening degree of the accelerator pedal is greater than a certain opening degree, such as 5%, and the pedal speed is between -20 mmps and 15 mmps, it can be determined that the driver's actual intention is to accelerate.

[0057] Furthermore, after identifying the driver's actual intention, this embodiment of the application can determine the pedal sticking range based on the current displacement and absolute zero position of the push rod. The calculation formula for the pedal sticking range is shown below.

[0058] Zone = Psh1 - Psh1

[0059] Where Zone is the pedal sticking range, Psh1 is the current push rod displacement, and Psh1 is the absolute zero position.

[0060] Specifically, when the stagnation interval is greater than 4% and less than 5% and lasts for 120ms, this embodiment of the application can report fault type A; when the stagnation interval is greater than 5% and less than 6% and lasts for 120ms, this embodiment of the application can report fault type B; when the stagnation interval is greater than 6% and less than 7% and lasts for 120ms, this embodiment of the application can report fault type C; when the stagnation interval is greater than 7% and less than 8% and lasts for 120ms, this embodiment of the application can report fault type D; when the stagnation interval is greater than 8% and less than 9% and lasts for 120ms, this embodiment of the application can report fault type E; when the stagnation interval is greater than 4% and less than 5% and lasts for 120ms, this embodiment of the application can report fault type E; when the stagnation interval is greater than 7% and less than 8% and lasts for 120ms, this embodiment of the application can report fault type D; when the stagnation interval is greater than 8% and less than 9 ... E; when the stagnation interval is greater than 7% and less than 8% and lasts for 120ms, this embodiment of the application can report fault type D; when the stagnation interval is greater than 8% and less than 9% and lasts for 120ms, When the hysteresis interval is greater than 9% and less than 10% and lasts for 120ms, this embodiment of the application can report the fault type as fault F; when the hysteresis interval is greater than 10% and less than 11% and lasts for 120ms, this embodiment of the application can report the fault type as fault G; when the hysteresis interval is greater than 11% and less than 12% and lasts for 120ms, this embodiment of the application can report the fault type as fault H; when the hysteresis interval is greater than 12% and less than 13% and lasts for 120ms, this embodiment of the application can report the fault type as fault I; when the hysteresis interval is greater than 13% and less than 14% and lasts for 120ms, this embodiment of the application can report the fault type as fault J.

[0061] Throughout the entire test, whenever a fault is reported, this application embodiment can store environment variables and freeze frames, which may include the flag for each stroke push rod jamming fault, the cumulative number of times each stroke push rod jamming has been identified, the zone of the largest push rod jamming interval in history, and the specific values ​​of the current push rod displacement Psh1 and absolute zero Psh1 at each time a fault is recorded.

[0062] It should be noted that during the test, the embodiments of this application can use a big data platform to understand the pedal jamming situation in real time, or perform statistical analysis on the entire test data after the test, so as to accurately find the pedal jamming range and distribution, which can provide test data for determining a reasonable pedal positioning stroke, and can also provide data support for setting the pedal return force.

[0063] The brake pedal sticking test method proposed in this application can identify the pedal sticking range and its corresponding distribution based on the driver's actual intention and the fault type reported by the vehicle, thereby mastering the characteristics of pedal return sticking, enhancing the user's driving experience, and improving the overall safety protection level during driving. This solves the problems in related technologies, such as the inability to accurately grasp the pedal return characteristics due to the dynamic correction of the pedal zero position, which affects the consistency of the brake pedal feel; the use of software strategies to deal with possible hardware problems; and the compromise of driving safety.

[0064] Next, the brake pedal sticking test apparatus according to the embodiments of this application is described with reference to the accompanying drawings.

[0065] Figure 3 This is a block diagram of a brake pedal sticking test device according to an embodiment of this application.

[0066] like Figure 3 As shown, the brake pedal sticking test device 10 includes: a detection module 100, an acquisition module 200, and a generation module 300.

[0067] Specifically, the detection module 100 is used to detect the driver's actual intention.

[0068] The acquisition module 200 is used to determine the range to which the pedal sticking range belongs based on the fault type reported by the vehicle when the actual intention is detected to be acceleration intention, and to obtain pedal sticking information and / or test data.

[0069] The generation module 300 is used to identify the pedal sticking range and its corresponding distribution based on pedal sticking information and / or test data, and to generate test data support for pedal positioning stroke and / or setting support data for pedal return force.

[0070] Optionally, in one embodiment of this application, the detection module 100 includes an acquisition unit and a determination unit.

[0071] The acquisition unit is used to acquire the actual gear position of the vehicle and collect the actual opening degree and pedal speed of the accelerator pedal.

[0072] The determination unit is used to determine that the actual intention is an acceleration intention when the actual gear is forward or reverse, the actual opening is greater than the preset opening, and the pedal speed is within the preset range.

[0073] Optionally, in one embodiment of this application, the generation module 300 is specifically used to determine the pedal sticking range based on the current displacement and absolute zero position of the push rod.

[0074] Optionally, in one embodiment of this application, the acquisition module 200 is specifically used to store environment variables and freeze frames each time a fault is reported, wherein the environment variables and freeze frames include fault identifiers for each stroke push rod jamming, cumulative number of times each stroke push rod jamming is identified, historical maximum push rod jamming range, and specific values ​​of the current push rod displacement and absolute zero position for each recorded fault.

[0075] It should be noted that the explanation of the aforementioned embodiment of the brake pedal sticking test method also applies to the brake pedal sticking test device of this embodiment, and will not be repeated here.

[0076] The brake pedal sticking test device proposed in this application can identify the pedal sticking range and its corresponding distribution based on the driver's actual intention and the fault type reported by the vehicle, thereby mastering the characteristics of pedal return sticking, enhancing the user's driving experience, and improving the overall safety protection level during driving. This solves the problems in related technologies, such as the brake system travel being adjusted according to the zero position correction based on dynamic pedal zero position correction, affecting the consistency of brake pedal feel; the inability to accurately grasp the pedal return characteristics due to software strategies to address potential hardware problems, thus jeopardizing driving safety.

[0077] Figure 4 A schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device may include:

[0078] The memory 401, the processor 402, and the computer program stored on the memory 401 and capable of running on the processor 402.

[0079] When the processor 402 executes the program, it implements the brake pedal sticking test method provided in the above embodiments.

[0080] Furthermore, electronic devices also include:

[0081] Communication interface 403 is used for communication between memory 401 and processor 402.

[0082] The memory 401 is used to store computer programs that can run on the processor 402.

[0083] The memory 401 may include high-speed RAM (Random Access Memory) memory, and may also include non-volatile memory, such as at least one disk storage.

[0084] If the memory 401, processor 402, and communication interface 403 are implemented independently, then the communication interface 403, memory 401, and processor 402 can be interconnected via a bus to complete communication between them. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 4 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0085] Optionally, in a specific implementation, if the memory 401, processor 402, and communication interface 403 are integrated on a single chip, then the memory 401, processor 402, and communication interface 403 can communicate with each other through an internal interface.

[0086] Processor 402 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement embodiments of this application.

[0087] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the above-described method for testing brake pedal sticking.

[0088] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0089] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0090] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0091] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0092] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0093] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0094] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0095] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A method for testing the sticking of a brake pedal, characterized in that, Includes the following steps: To detect the driver's actual intentions; When the actual intention is detected to be an acceleration intention, the pedal sticking interval is determined based on the fault type reported by the vehicle, and pedal sticking information and / or test data are obtained. as well as Based on the pedal sticking information and / or the test data, identify the pedal sticking range and its corresponding distribution, and generate test data support for the pedal positioning stroke and / or setting support data for the pedal return force; The process of determining the pedal sticking interval based on the fault type reported by the vehicle includes: Each time a fault is reported, environmental variables and a freeze frame are stored. The environmental variables and freeze frames include fault identifiers for each stroke push rod, the cumulative number of times each stroke push rod has been identified as stuck, the historical maximum push rod stuck range, and the specific values ​​of the current push rod displacement and absolute zero position for each recorded fault.

2. The method according to claim 1, characterized in that, The detection of the driver's actual intention includes: Obtain the vehicle's actual gear position, and collect the actual accelerator pedal opening and pedal speed; When the actual gear is forward or reverse, the actual opening is greater than the preset opening, and the pedal speed is within the preset range, the actual intention is determined to be the acceleration intention.

3. The method according to claim 1, characterized in that, The step of identifying the pedal sticking range and its corresponding distribution based on the pedal sticking information and / or the test data includes: The pedal sticking range is determined by the current displacement and absolute zero position of the push rod.

4. A brake pedal sticking test device, characterized in that, include: The detection module is used to detect the driver's actual intention; The acquisition module is used to determine the range to which the pedal sticking range belongs based on the fault type reported by the vehicle when the actual intention is detected to be an acceleration intention, and to obtain pedal sticking information and / or test data. as well as The generation module is used to identify the pedal jamming range and its corresponding distribution based on the pedal jamming information and / or the test data, and generate test data support for the pedal positioning stroke and / or setting support data for the pedal return force. The acquisition module is specifically used to store environment variables and freeze frames each time a fault is reported. The environment variables and freeze frames include fault identifiers for each stroke push rod jamming, the cumulative number of times each stroke push rod jamming has been identified, the historical maximum push rod jamming range, and the specific values ​​of the current push rod displacement and absolute zero position for each recorded fault.

5. The apparatus according to claim 4, characterized in that, The detection module includes: The acquisition unit is used to acquire the actual gear position of the vehicle and collect the actual opening degree and pedal speed of the accelerator pedal; The determination unit is used to determine that the actual intention is the acceleration intention when the actual gear is a forward gear or a reverse gear, the actual opening is greater than a preset opening, and the pedal speed is within a preset range.

6. The apparatus according to claim 4, characterized in that, The generation module is specifically used to determine the pedal sticking range based on the current displacement and absolute zero position of the push rod.

7. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the brake pedal sticking test method as described in any one of claims 1-3.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the brake pedal sticking test method as described in any one of claims 1-3.

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