A bumper detection method and device integrated with an electrical device

Abstract

This invention discloses a method and apparatus for testing bumpers integrated with electrical components. The method includes: acquiring control commands and test parameters issued by intelligent testing software in a host computer, and transmitting the control commands and test parameters to a control box; receiving the control commands and test parameters using the control box, and then forwarding the control commands and test parameters to the corresponding test interfaces; performing testing operations on the corresponding electrical components on the front bumper assembly using each test interface, collecting the response signals and feedback data of the electrical components and transmitting them to the control box, which then transmits the response signals and feedback data back to the host computer; and having the host computer parse and analyze the received response signals and feedback data to determine the functional status of the electrical components under test, generate a corresponding test report, and electronically store and manage all test data. This invention solves the problem of low bumper testing efficiency in the prior art.

Description

Technical Field

[0001] This invention relates to the field of bumper technology, and in particular to a method and apparatus for detecting bumpers that integrate electrical components. Background Technology

[0002] With the rapid development of automotive intelligent technology, the types and number of electronic components integrated into car bumpers have increased significantly. Typical examples include hostless ultrasonic radar sensors for automatic parking assist systems, host radar sensors with built-in processors, and various control modules and radar components such as the Automatic Parking Assist 5 (APA5) module. As crucial components of vehicle intelligent control, the functionality of these electronic components directly affects vehicle driving safety and the effectiveness of intelligent control. Therefore, a comprehensive and accurate functional test must be performed on all integrated electronic components before installation on the bumper.

[0003] In existing technologies, the testing of automotive bumper electrical components mainly employs a discrete, non-automated testing method combining tooling and manual operation. Operators must manually connect the bumper assembly under test to the testing equipment using specialized testing tooling. They then manually determine the functionality of the electrical components by observing indicator light status, listening to equipment feedback sounds, or reading basic information from a simple display screen. To improve testing efficiency, some semi-automated testing benches have emerged in the industry. These benches are equipped with testing tooling that integrates power and signal interfaces. Probes can be connected to the bumper electrical component interfaces via pneumatic or manual crimping. After the tooling is connected to a dedicated tester, the tester can automatically apply excitation signals and collect basic responses through a built-in simple test program, ultimately displaying a "pass / fail" test result on the screen.

[0004] However, both traditional manual testing methods and existing semi-automated test benches still have many technical shortcomings in practical applications, making it difficult to meet the testing needs of modern automotive production lines: First, the testing efficiency is low. The manual wiring and one-by-one testing methods are time-consuming, and semi-automated test benches cannot achieve batch parallel testing due to their simple testing logic, which is incompatible with the high-speed cycle requirements of the production line. Second, the testing reliability is poor. Traditional testing results rely entirely on the experience and sense of responsibility of the operators, which can easily lead to inconsistent testing standards due to operator fatigue and non-standard operation, resulting in misjudgments and omissions. The judgment logic of semi-automated test benches is only for basic continuity and simple functions, and cannot accurately identify complex faults.

[0005] Furthermore, the core testing logic of existing semi-automated test benches is fixed inside dedicated testing instruments, lacking a host computer with powerful data processing and comprehensive control capabilities for overall management. This results in insufficient computing power and flexibility of the testing system, making it unable to perform complex test logic operations and multi-dimensional data analysis. It is also difficult to adapt to the testing needs of different models and configurations of bumper assemblies through flexible configuration. If it is necessary to test the bumpers of new models, it is necessary to redevelop dedicated testing fixtures and testing instruments, which greatly increases the cost of upgrading and replacing testing equipment.

[0006] In summary, the challenge lies in developing a testing method that enables efficient, accurate, and comprehensive testing of automotive bumper electrical components, while also possessing flexible adaptability and robust data management capabilities. Summary of the Invention

[0007] In view of this, the purpose of the present invention is to provide a bumper detection method and apparatus integrating electrical components, which aims to solve at least one technical problem mentioned in the background art.

[0008] The embodiments of the present invention are implemented as follows: A method for testing a bumper with integrated electrical components is applied to a host computer. The host computer is electrically connected to a control box, which integrates a CAN card and multiple test interfaces for testing the electrical components on the bumper. The control box is electrically connected to the front bumper assembly under test through each test interface. The method includes: The system acquires control commands and test parameters issued by the intelligent detection software in the host computer and transmits them to the control box. The control box receives control commands and test parameters, distributes power to the entire test system and the front bumper assembly under test through its internal power management circuit, and then forwards the control commands and test parameters to the corresponding test interface. The corresponding electrical components on the front bumper assembly are tested using various test interfaces. The response signals and feedback data of the electrical components are collected and transmitted to the control box, which then transmits the response signals and feedback data back to the host computer. The host computer analyzes and interprets the received response signals and feedback data to determine the functional status of the electrical device under test, generates corresponding test reports, and electronically stores and manages all test data.

[0009] Furthermore, the above-mentioned bumper detection method integrating electrical components, wherein, before the step of performing detection operations on the corresponding electrical components on the front bumper assembly using each test interface, collecting the response signals and feedback data of the electrical components and transmitting them to the control box, and then the control box transmitting the response signals and feedback data back to the host computer, the method further includes: A CAN communication link is established between the host computer and the front bumper assembly under test using a CAN card. The CAN network environment of the vehicle is simulated to send CAN messages to the device under test, and at the same time, the CAN messages fed back by the device under test are received and sent back to the host computer. The host computer parses and analyzes the received CAN messages to determine whether the communication and logic functions of the device under test are normal.

[0010] Furthermore, in the aforementioned method for testing bumpers integrated with electrical components, the test interfaces include an APA5 module test interface, a hostless radar test interface, and a host radar test interface, which respectively correspond to testing the APA5 module, the hostless radar, and the host radar on the front bumper assembly under test.

[0011] Furthermore, the above-mentioned bumper testing method integrating electrical components includes a test mode and a simulation mode when performing the testing operation using the APA5 module test interface; In test mode, the control box simulates sensor signals input to the APA5 module through the APA5 module test interface and collects the output signal of the APA5 module as feedback data; In simulation mode, the control box simulates the working behavior of the APA5 module through the APA5 module test interface, sends simulated signals to the connected radar, and collects the radar's feedback signals as feedback data.

[0012] Furthermore, in the above-mentioned bumper detection method integrating electrical components, when performing the detection operation using the hostless radar test interface, the hostless radar is provided with power and simulated trigger signals through the interface, and the echo signal returned by the hostless radar is received as a response signal. The host computer or control box analyzes the echo signal to determine the performance status of the hostless radar. When performing detection operations using the host radar test interface, power is supplied to the host radar through this interface, and a CAN communication channel is established between the host radar and the host computer through the CAN card in the control box. The host computer sends CAN message commands to the host radar through the CAN card and receives the CAN message data fed back by the host radar as feedback data.

[0013] Furthermore, in the aforementioned bumper testing method integrating electrical components, the control box also integrates a signal switching circuit and a signal processing circuit. The signal switching circuit is used to switch the test parameters and control signals to the corresponding test interfaces according to the control commands. The signal processing circuit is used to perform preliminary processing on the response signals and feedback data collected by each test interface before transmitting them back to the host computer.

[0014] Furthermore, in the aforementioned bumper testing method integrating electrical components, the intelligent testing software in the host computer pre-stores test parameters for bumper electrical components of multiple car models and different configurations. Based on the model of the front bumper assembly to be tested, the corresponding test parameters can be retrieved and sent to the control box.

[0015] Another objective of this invention is to provide a bumper testing device integrating electrical components, applied in a host computer. The host computer is electrically connected to a control box, which integrates a CAN card and multiple test interfaces for testing the electrical components on the bumper. The control box is electrically connected to the front bumper assembly under test through each test interface. The device includes: The acquisition module is used to acquire control commands and test parameters issued by the intelligent detection software in the host computer, and transmit the control commands and test parameters to the control box; The forwarding module is used to receive control commands and test parameters through the control box, distribute power to the entire test system and the front bumper assembly under test through its internal power management circuit, and then forward the control commands and test parameters to the corresponding test interface. The detection module is used to perform detection operations on the corresponding electrical components on the front bumper assembly using various test interfaces, collect the response signals and feedback data of the electrical components and transmit them to the control box, and then the control box transmits the response signals and feedback data back to the host computer. The management module is used to parse and analyze the received response signals and feedback data through the host computer, determine the functional status of the electrical device under test, generate corresponding test reports, and electronically store and manage all test data.

[0016] Another object of the present invention is to provide a readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the methods described above.

[0017] Another object of the present invention is to provide an electronic device including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the steps of the method described above.

[0018] This invention constructs an integrated testing system by using a host computer as the core control unit, paired with a control box integrating a CAN card and multiple dedicated test interfaces. The host computer sends control commands and test parameters to the control box, which then handles power distribution and command forwarding. The system performs testing operations on the electrical components on the bumper through the various test interfaces and collects feedback data. Finally, the host computer performs data parsing and analysis, status determination, report generation, and electronic data management. By adopting a hierarchical control architecture of host computer + control box to replace the traditional manual testing and semi-automated testing instrument-dominated testing mode, this invention eliminates the inefficient operation of manual wiring and judgment, automating the testing process and effectively avoiding misjudgments and omissions caused by human factors, significantly improving testing efficiency and accuracy. On the one hand, it ensures reliability; on the other hand, it relies on the powerful processing capabilities of the host computer and combines a CAN card to simulate the real CAN network environment of a vehicle, breaking through the limitations of traditional testing methods that can only complete basic continuity tests, and realizing comprehensive functional testing of bumper electrical components. At the same time, by pre-storing test parameters on the host computer and electronically storing and managing the entire process of test data, it can flexibly adapt to the testing needs of different car models and configurations through software configuration, reducing equipment upgrade costs, and realize automatic recording, traceability and analysis of test data, providing data support for production quality control and product problem tracing. It comprehensively solves the problems of low efficiency, poor reliability, limited functional testing coverage, lack of data management, insufficient computing power and poor adaptability of existing bumper electrical component testing technologies. Attached Figure Description

[0019] Figure 1 This is an architecture diagram of the detection system in a bumper detection method integrating electrical components according to an embodiment of the present invention. Figure 2 This is a flowchart of the bumper detection method integrating electrical components in the first embodiment of the present invention; Figure 3 This is a structural block diagram of a bumper detection device integrating electrical components according to the third embodiment of the present invention.

[0020] The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0021] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0022] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Please see Figure 1 The diagram shown is an architecture diagram of the components in the detection system of the bumper detection method integrating electrical components proposed in an embodiment of the present invention. These components include a host computer, a control box, a CAN card, an APA5 module test interface, a hostless radar test interface, a host-based radar test interface, and the front bumper assembly to be tested. Specifically: The host computer (PC) is the brain of the entire system, running the intelligent testing software. It is responsible for issuing all control commands, configuring test parameters, receiving and processing test data, generating test reports, and handling human-computer interaction.

[0025] Control box: This is the central unit of the system. It connects to the host computer via USB and receives commands from the host computer. Internally, it integrates power management circuitry, signal switching circuitry, and some signal processing circuitry. It provides power distribution for the entire test system and is responsible for forwarding commands from the host computer to the corresponding modules.

[0026] CAN Card: Installed inside the control box or connected to the host computer via other means (such as USB). Its function is to enable interaction between the host computer and the vehicle's CAN network. The host computer uses the CAN card to simulate the vehicle environment (such as simulating the body controller, gateway, etc.), sending CAN messages to the device under test (DUT) and receiving CAN messages from the DUT (if there is a main radar), thereby verifying whether its communication and logic functions are normal.

[0027] APA5 Module (Simulator): This should be understood as the APA5 module test interface or simulator. It connects to the control box via wires. For the APA5 module under test, the system may provide two modes: Test mode: The control box simulates sensor signal input to the APA5 module and collects its output signal to determine its function.

[0028] Simulation mode: When the APA5 module itself is the device under test, the system can simulate the behavior of the APA5 module to test the radar connected to it.

[0029] Hostless radar test interface: Connects to the control box via wires. This interface provides power and simulates trigger signals to the hostless radar (radar that relies on an external processor), and receives the echo signals returned by the radar. The control box or host computer analyzes the echo signals to determine the radar performance.

[0030] There is a host radar test interface: it connects to the control box via wires. The host radar has its own processor and typically communicates with the vehicle via a CAN bus. Therefore, this interface mainly provides power and a CAN communication channel. Its functional testing is primarily performed through a CAN card; the host computer sends commands via the CAN bus and receives data frames from the radar for analysis and judgment.

[0031] The front bumper assembly is the device under test (DUT), which integrates various electrical components that need to be tested, such as the wireless radar, the active radar, and the APA5 module. These DUTs are connected to the corresponding test interfaces on the control box via their own wiring harnesses.

[0032] It should be pointed out that, Figure 1 The structure shown does not constitute a limitation on the detection system. In other embodiments, the detection system may include fewer or more components than shown, or combine certain components, or have different component arrangements. For example, the CAN card can be directly connected to the host computer via USB, or some functions of the control box can be integrated into the host computer, or power management and signal processing modules can be directly integrated into an industrial computer.

[0033] Example 1 Please see Figure 1 The diagram shows a bumper testing method integrating electrical components according to the first embodiment of the present invention. It is applied to a host computer, which is electrically connected to a control box. The control box integrates a CAN card and multiple test interfaces for testing electrical components on the bumper. The control box is electrically connected to the front bumper assembly to be tested through each test interface. The method includes steps S10 to S13.

[0034] Step S10: Obtain the control commands and test parameters issued by the intelligent detection software in the host computer, and transmit the control commands and test parameters to the control box.

[0035] The host computer is the core control unit of the entire testing system. The intelligent testing software running inside it can be operated by the operator through a human-machine interface. The operator can set the corresponding testing process, testing items and other related content in the intelligent testing software according to the actual testing requirements of the front bumper assembly to be tested. The intelligent testing software generates corresponding control commands and test parameters based on these settings. The control commands are used to direct each component of the testing system to perform corresponding testing operations, and the test parameters are the specific basis for each component to perform testing operations. The generated control commands and test parameters are transmitted from the host computer to the connected control box through communication methods such as USB cable.

[0036] In addition, in some optional embodiments of the present invention, the intelligent detection software in the host computer pre-stores test parameters for bumper electrical components of multiple car models and different configurations. It can retrieve the corresponding test parameters according to the model of the front bumper assembly to be tested and send them to the control box.

[0037] During the development and debugging process, the intelligent testing software on the host computer pre-sets and stores corresponding electrical component test parameters based on the design requirements and testing standards of bumpers for different car models and configurations. These test parameters cover the testing thresholds, testing procedures, signal standards, and other information for various electrical components on bumpers of different car models, forming a comprehensive test parameter database. In actual testing, operators only need to select the car model and configuration of the front bumper assembly to be tested in the human-machine interface of the intelligent testing software. The software automatically retrieves the matching test parameters from the database, eliminating the need for manual setting. After retrieval, the software sends the corresponding test parameters and control commands to the control box, which then executes subsequent testing operations based on the matched test parameters. This setup allows a single testing system to adapt to the testing of bumper assemblies of various car models and configurations through flexible software parameter retrieval, eliminating the need to build separate testing hardware for different car models. This significantly improves the flexibility of the testing system and reduces hardware investment and upgrade costs for the production line.

[0038] Specifically, the control box also integrates signal switching circuits and signal processing circuits. These two types of circuits respectively undertake the corresponding signal processing functions, improving the signal transmission and processing efficiency of the detection system.

[0039] The signal switching circuit is used to switch test parameters and control signals to the corresponding test interface according to control commands. After receiving control commands and test parameters from the host computer, the control box parses the control commands, extracts the target test interface information, and then accurately switches the corresponding test parameters and control signals to the target test interface based on this information, achieving directional signal transmission. When the testing system needs to test multiple electrical components simultaneously, or needs to switch between testing different electrical components, the signal switching circuit can quickly complete the signal switching and distribution, ensuring that each test interface can accurately receive the corresponding commands and parameters, avoiding signal transmission chaos, and ensuring the orderly progress of the testing process.

[0040] The signal processing circuit performs preliminary processing on the response signals and feedback data acquired from each test interface before transmitting them back to the host computer. The response signals and feedback data acquired from each test interface are of diverse types, and some data may contain signal interference or data redundancy. The signal processing circuit performs preliminary processing on this data, including signal filtering, amplification, data screening, and format conversion, removing interference signals and redundant data, and converting the data into a format that the host computer can directly parse and analyze. The pre-processed response signals and feedback data are then transmitted back to the host computer from the control box. This effectively reduces the data processing load on the host computer, improves the data analysis efficiency of the entire testing system, and allows the host computer to receive more accurate and effective test data.

[0041] Step S11: Receive control commands and test parameters using the control box, distribute power to the entire test system and the front bumper assembly under test through its internal power management circuit, and then forward the control commands and test parameters to the corresponding test interface.

[0042] The control box, as the hub unit of the testing system, accurately receives control commands and test parameters from the host computer. Its integrated power management circuitry provides power distribution capabilities, rationally allocating power resources according to the power requirements of various components in the testing system and the electrical components under test on the front bumper assembly. This ensures a stable power supply to the hardware components of the testing system (excluding the host computer) and the various electrical components under test, guaranteeing the smooth operation of the testing process. After power distribution, the control box accurately forwards the control commands and test parameters to the corresponding test interface based on the target component information in the control commands, ensuring that the test commands and parameters are accurately delivered to the execution end.

[0043] Specifically, the test interfaces include the APA5 module test interface, the hostless radar test interface, and the host radar test interface, which respectively correspond to testing the APA5 module, the hostless radar, and the host radar on the front bumper assembly under test.

[0044] The APA5 module test interface is specifically designed for the APA5 module on the front bumper assembly under test. It is electrically connected to the control box, receiving control commands and test parameters forwarded by the control box, performing dedicated testing operations on the APA5 module, and collecting response signals and feedback data during the testing process. The hostless radar test interface is adapted for the hostless radar on the front bumper assembly under test. Since hostless radar relies on an external processor to operate, this test interface provides the corresponding test conditions and signals to complete the performance and functional testing of the hostless radar. The host radar test interface corresponds to the host radar on the front bumper assembly under test. Host radar has its own processor and typically communicates with the vehicle via a CAN bus. This test interface can work with a CAN card to complete comprehensive testing of the host radar. These three types of test interfaces each perform their specific functions, testing different types of core electrical components on the bumper, achieving comprehensive coverage testing of the integrated electrical components of the bumper, and ensuring that the functional status of each core electrical component can be effectively verified.

[0045] Step S12: Use each test interface to perform test operations on the corresponding electrical components on the front bumper assembly, collect the response signals and feedback data of the electrical components and transmit them to the control box, and then the control box transmits the response signals and feedback data back to the host computer. Each test interface corresponds to a specific electrical component on the front bumper assembly under test. After receiving control commands and test parameters forwarded by the control box, each test interface performs targeted testing operations on the corresponding electrical component according to the commands and parameters. During the testing process, the electrical component generates corresponding response signals based on the received test signals and simultaneously feeds back its own working status, operating data, and other relevant feedback data. Each test interface collects these response signals and feedback data in real time and transmits them to the control box. After receiving this data, the control box transmits the data back to the host computer completely through the communication link with the host computer, ensuring that the test data can be accurately delivered to the analysis end.

[0046] For example, when performing detection operations using the APA5 module test interface, there are two working modes: test mode and simulation mode. The two modes can be flexibly switched according to actual detection needs.

[0047] In test mode, the control box simulates sensor signals to the APA5 module through the APA5 module test interface and collects the APA5 module's output signals as feedback data. In this mode, the APA5 module is the test object. The control box inputs simulated sensor signals to the APA5 module through the APA5 module test interface according to the test parameters. These signals simulate the environmental perception signals transmitted to the APA5 module by various sensors during the operation of the vehicle's automatic parking assist system. After receiving these simulated sensor signals, the APA5 module processes them according to its own operating logic and generates corresponding output signals. The APA5 module test interface collects these output signals in real time and transmits them as feedback data to the control box to determine whether the APA5 module's ability to process input signals and its output logic are normal.

[0048] In simulation mode, the control box simulates the operation of the APA5 module through the APA5 module test interface, sending simulated signals to the connected radar and collecting the radar's feedback signals as feedback data. In this mode, the APA5 module is not the object of detection; instead, the radar connected to the APA5 module is. The control box simulates the APA5 module's operating state and signal output logic through the APA5 module test interface, sending simulated control signals and command signals to the connected radar. Upon receiving these simulated signals, the radar generates corresponding feedback signals. The APA5 module test interface collects these feedback signals and transmits them to the control box as feedback data. This verifies whether the signal interaction between the radar and the APA5 module is normal and whether the radar's response to commands from the APA5 module meets the requirements.

[0049] When performing testing using the hostless radar test interface, the interface provides power and simulated trigger signals to the hostless radar. Simultaneously, it receives the echo signals returned by the hostless radar as response signals. The host computer or control box analyzes the echo signals to determine the performance status of the hostless radar. During testing, the hostless radar test interface first provides a stable power supply to the hostless radar to ensure normal startup and operation. It then sends simulated trigger signals to the hostless radar according to test parameters. These signals simulate the trigger commands for the hostless radar during actual vehicle use. Upon receiving the trigger signal, the hostless radar emits a detection signal and receives the echo signals within its detection range. The hostless radar test interface collects these echo signals in real time and transmits them to the control box as response signals. The control box can then perform preliminary analysis and processing of the echo signals, or the echo signals can be transmitted back to the host computer for in-depth analysis using more complex algorithms. By analyzing parameters such as the intensity, frequency, and reflection time of the echo signals, the host computer determines whether the detection performance and signal reception capabilities of the hostless radar meet design standards, thereby determining the performance status of the hostless radar.

[0050] When performing detection operations using the host radar test interface, power is supplied to the host radar through this interface. A CAN communication channel is established between the host radar and the host computer via a CAN card within the control box. The host computer sends CAN message commands to the host radar via the CAN card and receives CAN message data from the host radar as feedback data. The host radar has its own processor, and its operation depends on a stable power supply. The host radar test interface first provides it with a suitable power supply. Simultaneously, the CAN card within the control box establishes a CAN communication channel between the host radar and the host computer, enabling data exchange via the CAN bus. The host computer will send various CAN message commands to the host radar via the CAN card according to the detection requirements, including working mode switching commands, status query commands, parameter configuration commands, etc. After receiving these commands, the host radar will execute the corresponding operations according to its own working logic and feed back its own working status, command execution results, parameter information, etc. in the form of CAN messages. The host computer will receive these CAN message data as feedback data and, through parsing and analyzing the feedback data, determine whether the host radar's CAN communication function, command execution capability, and its own working status are normal.

[0051] Step S13: The host computer parses and analyzes the received response signals and feedback data to determine the functional status of the electrical device under test, generates a corresponding test report, and electronically stores and manages all test data.

[0052] After receiving the response signals and feedback data from the control box, the host computer's internal intelligent testing software uses preset data analysis algorithms to professionally analyze and interpret the data. The data results are compared with preset standard thresholds and standard operating states to determine whether the tested electrical components are functioning correctly and whether any faults exist. After completing the analysis and judgment of all test items, the intelligent testing software generates a corresponding test report based on the test results. The test report clearly records the overall testing status of the front bumper assembly under test, the functional status of each electrical component, and any problems encountered during the testing process. Simultaneously, the host computer electronically stores all control commands, test parameters, response signals, feedback data, and test results generated during the testing process, establishing a corresponding quality data pool for unified management of the test data. This facilitates subsequent quality analysis, problem tracing, and production management optimization.

[0053] In summary, the bumper testing method integrating electrical components described in the above embodiments of the present invention constructs an integrated testing system by using a host computer as the core control unit, coupled with a control box integrating a CAN card and multiple dedicated test interfaces. The host computer sends control commands and test parameters to the control box, which then completes power distribution and command forwarding. The system then performs testing operations on the electrical components on the bumper through various test interfaces and collects feedback data. Finally, the host computer completes data parsing and analysis, status determination, report generation, and electronic data management. By adopting a hierarchical control architecture of host computer + control box to replace the traditional manual testing and semi-automatic testing instrument-dominated testing mode, the method eliminates the inefficient operation of manual wiring and judgment, automates the testing process, and effectively avoids misjudgments and omissions caused by human factors. This technology significantly improves testing efficiency and reliability. Furthermore, leveraging the powerful processing capabilities of the host computer and combining it with a CAN card to simulate the real CAN network environment of a vehicle, it overcomes the limitations of traditional testing methods that can only perform basic continuity tests, enabling comprehensive functional testing of bumper electrical components. Simultaneously, by pre-storing test parameters on the host computer and electronically managing the entire testing process, it can flexibly adapt to the testing needs of different vehicle models and configurations through software configuration, reducing equipment upgrade costs. It also enables automatic recording, traceability, and analysis of test data, providing data support for production quality control and product problem tracing. This comprehensively solves the problems of low testing efficiency, poor reliability, limited functional testing coverage, lack of data management, insufficient computing power, and poor adaptability of existing bumper electrical component testing technologies.

[0054] Example 2 This embodiment also proposes a method for detecting bumpers with integrated electrical components. The difference between the bumper detection method with integrated electrical components in this embodiment and the bumper detection method with integrated electrical components in Embodiment 1 is as follows: Before the steps of using various test interfaces to perform test operations on the corresponding electrical components on the front bumper assembly, collecting the response signals and feedback data of the electrical components and transmitting them to the control box, and then having the control box transmit the response signals and feedback data back to the host computer, the following steps are also included.

[0055] A CAN communication link is established between the host computer and the front bumper assembly under test using a CAN card. The CAN network environment of the vehicle is simulated to send CAN messages to the device under test, while the CAN messages fed back by the device under test are received and transmitted back to the host computer.

[0056] The CAN card is the core component for enabling CAN bus communication between the host computer and the device under test (DUT). It is integrated inside the control box and can establish a CAN communication link between the host computer and the front bumper assembly under DUT using its own communication function, allowing the host computer to achieve CAN bus data interaction with the DUT.

[0057] The host computer uses a CAN card to simulate the CAN network environment during actual vehicle operation, mimicking the working status of vehicle electronic control units such as the body controller and gateway. Based on testing requirements, it sends corresponding CAN messages to the device under test (DUT). These CAN messages contain various control commands, status query commands, and other information. Upon receiving the CAN messages, the DUT generates corresponding feedback CAN messages according to its own operating logic. The CAN card receives these feedback CAN messages in real time and transmits them completely back to the host computer, providing data for subsequent communication function assessments.

[0058] The host computer parses and analyzes the received CAN messages to determine whether the communication and logic functions of the device under test (DUT) are normal. After receiving the CAN message from the DUT via the CAN card, the host computer's internal intelligent testing software parses the message data according to the CAN bus communication protocol and the UDS unified diagnostic service protocol, extracting key information such as the DUT's operating status, command execution results, and data feedback content. The parsed message data is then compared with preset standard communication data and standard logic responses to check whether the DUT can accurately receive the CAN messages sent by the host computer and whether it can generate feedback messages according to normal logic. This determines whether the DUT's CAN communication function is normal and whether its CAN bus-based logic functions meet design requirements. Only after confirming that the DUT's communication and logic functions are normal will subsequent test interfaces be executed to perform specific testing operations on the device, ensuring the effectiveness of the subsequent testing process.

[0059] In summary, the bumper testing method integrating electrical components in the above embodiments of the present invention constructs an integrated testing system by using a host computer as the core control unit, combined with a control box integrating a CAN card and multiple dedicated test interfaces. The host computer sends control commands and test parameters to the control box, which then completes power distribution and command forwarding. The system then performs testing operations on the electrical components on the bumper through various test interfaces and collects feedback data. Finally, the host computer completes data parsing and analysis, status determination, report generation, and electronic data management. By adopting a hierarchical control architecture of host computer + control box to replace the traditional manual testing and semi-automatic testing instrument-dominated testing mode, the method eliminates the inefficient operation of manual wiring and judgment, automates the testing process, and effectively avoids misjudgments and omissions caused by human factors. This technology significantly improves testing efficiency and reliability. Furthermore, leveraging the powerful processing capabilities of the host computer and combining it with a CAN card to simulate the real CAN network environment of a vehicle, it overcomes the limitations of traditional testing methods that can only perform basic continuity tests, enabling comprehensive functional testing of bumper electrical components. Simultaneously, by pre-storing test parameters on the host computer and electronically managing the entire testing process, it can flexibly adapt to the testing needs of different vehicle models and configurations through software configuration, reducing equipment upgrade costs. It also enables automatic recording, traceability, and analysis of test data, providing data support for production quality control and product problem tracing. This comprehensively solves the problems of low testing efficiency, poor reliability, limited functional testing coverage, lack of data management, insufficient computing power, and poor adaptability of existing bumper electrical component testing technologies.

[0060] Example 3 Please see Figure 3 The image shows a bumper testing device with integrated electrical components proposed in the third embodiment of the present invention. It is applied to a host computer, which is electrically connected to a control box. The control box integrates a CAN card and multiple test interfaces for testing the electrical components on the bumper. The control box is electrically connected to the front bumper assembly under test through each test interface. The device includes: The acquisition module 100 is used to acquire control commands and test parameters issued by the intelligent detection software in the host computer, and transmit the control commands and test parameters to the control box; The forwarding module 200 is used to receive control commands and test parameters through the control box, distribute power to the entire test system and the front bumper assembly under test through its internal power management circuit, and then forward the control commands and test parameters to the corresponding test interface. The detection module 300 is used to perform detection operations on the corresponding electrical components on the front bumper assembly using various test interfaces, collect the response signals and feedback data of the electrical components and transmit them to the control box, and then the control box transmits the response signals and feedback data back to the host computer. The management module 400 is used to parse and analyze the received response signals and feedback data through the host computer, determine the functional status of the electrical device under test, generate corresponding test reports, and electronically store and manage all test data.

[0061] The functions or operation steps implemented by the above modules are largely the same as those in the above method embodiments, and will not be repeated here.

[0062] Example 4 In another aspect, the present invention provides a readable storage medium having a computer program stored thereon, wherein the program, when executed by a processor, implements the steps of the method described in any one of the above embodiments one to two.

[0063] Example 5 In another aspect, the present invention provides an electronic device, the 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 steps of any one of the methods described in embodiments one to two above.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] Those skilled in the art will understand that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequential list of executable instructions for implementing logical functions, and can be embodied in any computer-readable storage 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 storage medium" can mean 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.

[0066] More specific examples (a non-exhaustive list) of computer-readable storage media include: electrical connections (electronic devices) having one or more wires, portable computer disk drives (magnetic devices), 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). Furthermore, computer-readable storage media can even be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in computer memory.

[0067] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in 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.

[0068] In the description of this specification, 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 the invention. 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.

[0069] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A method for detecting bumpers with integrated electrical components, characterized in that, The method is applied in a host computer, which is electrically connected to a control box. The control box integrates a CAN card and multiple test interfaces for testing electrical components on the bumper. The control box is electrically connected to the front bumper assembly under test through these test interfaces. The system acquires control commands and test parameters issued by the intelligent detection software in the host computer and transmits them to the control box. The control box receives control commands and test parameters, distributes power to the entire test system and the front bumper assembly under test through its internal power management circuit, and then forwards the control commands and test parameters to the corresponding test interface. The corresponding electrical components on the front bumper assembly are tested using various test interfaces. The response signals and feedback data of the electrical components are collected and transmitted to the control box, which then transmits the response signals and feedback data back to the host computer. The host computer analyzes and interprets the received response signals and feedback data to determine the functional status of the electrical device under test, generates corresponding test reports, and electronically stores and manages all test data.

2. The method for detecting a bumper with integrated electrical components according to claim 1, characterized in that, Before the step of performing detection operations on the corresponding electrical components on the front bumper assembly using each test interface, collecting the response signals and feedback data of the electrical components and transmitting them to the control box, and then having the control box transmit the response signals and feedback data back to the host computer, the following steps are also included: A CAN communication link is established between the host computer and the front bumper assembly under test using a CAN card. The CAN network environment of the vehicle is simulated to send CAN messages to the device under test, and at the same time, the CAN messages fed back by the device under test are received and sent back to the host computer. The host computer parses and analyzes the received CAN messages to determine whether the communication and logic functions of the device under test are normal.

3. The method for detecting a bumper with integrated electrical components according to claim 1, characterized in that, The test interfaces include an APA5 module test interface, a hostless radar test interface, and a host radar test interface, which respectively correspond to testing the APA5 module, hostless radar, and host radar on the front bumper assembly under test.

4. The method for detecting a bumper with integrated electrical components according to claim 3, characterized in that, When performing detection operations using the APA5 module test interface, there are test mode and simulation mode. In test mode, the control box simulates sensor signals input to the APA5 module through the APA5 module test interface and collects the output signal of the APA5 module as feedback data; In simulation mode, the control box simulates the working behavior of the APA5 module through the APA5 module test interface, sends simulated signals to the connected radar, and collects the radar's feedback signals as feedback data.

5. The method for detecting a bumper with integrated electrical components according to claim 4, characterized in that, When performing a detection operation using the hostless radar test interface, the hostless radar is powered and a simulated trigger signal is provided through the interface. At the same time, the echo signal returned by the hostless radar is received as a response signal. The host computer or control box analyzes the echo signal to determine the performance status of the hostless radar. When performing detection operations using the host radar test interface, power is supplied to the host radar through this interface, and a CAN communication channel is established between the host radar and the host computer through the CAN card in the control box. The host computer sends CAN message commands to the host radar through the CAN card and receives the CAN message data fed back by the host radar as feedback data.

6. The method for detecting a bumper with integrated electrical components according to claim 1, characterized in that, The control box also integrates a signal switching circuit and a signal processing circuit. The signal switching circuit is used to switch the test parameters and control signals to the corresponding test interface according to the control command. The signal processing circuit is used to perform preliminary processing on the response signals and feedback data collected by each test interface before sending them back to the host computer.

7. The method for detecting a bumper with integrated electrical components according to any one of claims 1 to 6, characterized in that, The intelligent testing software in the host computer has pre-stored test parameters for bumper electrical components of multiple car models and different configurations. It can retrieve the corresponding test parameters according to the model of the front bumper assembly to be tested and send them to the control box.

8. A bumper detection device integrating electrical components, characterized in that, This device is used in a host computer, which is electrically connected to a control box. The control box integrates a CAN card and multiple test interfaces for testing electrical components on the bumper. The control box is electrically connected to the front bumper assembly under test through these test interfaces. The device includes: The acquisition module is used to acquire control commands and test parameters issued by the intelligent detection software in the host computer, and transmit the control commands and test parameters to the control box; The forwarding module is used to receive control commands and test parameters through the control box, distribute power to the entire test system and the front bumper assembly under test through its internal power management circuit, and then forward the control commands and test parameters to the corresponding test interface. The detection module is used to perform detection operations on the corresponding electrical components on the front bumper assembly using various test interfaces, collect the response signals and feedback data of the electrical components and transmit them to the control box, and then the control box transmits the response signals and feedback data back to the host computer. The management module is used to parse and analyze the received response signals and feedback data through the host computer, determine the functional status of the electrical device under test, generate corresponding test reports, and electronically store and manage all test data.

9. A storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the steps of the method as described in any one of claims 1 to 7.

10. A vehicle, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the program, implements the steps of the method as described in any one of claims 1 to 7.

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