Electromagnetic compatibility testing method and apparatus for vehicle controller

Abstract

This invention discloses an electromagnetic compatibility (EMC) testing method and apparatus for vehicle controllers. The method, relating to the field of vehicle design technology, includes: acquiring initial design task information and EMC standards for the vehicle controller; identifying risks in the initial design task information based on the EMC standards to determine at least one signal source affecting the EMC of the vehicle controller; adjusting the initial design task information according to the signal source type of the at least one signal source to obtain target design task information; and testing the EMC of the vehicle controller based on the target design task information to obtain test results. This invention solves the technical problem of poor user experience caused by the low accuracy of EMC testing methods for vehicle controllers.

Description

Technical Field

[0001] This invention relates to the field of vehicle design technology, and more specifically, to an electromagnetic compatibility testing method and apparatus for a vehicle controller. Background Technology

[0002] With the rapid development of the automotive industry, automakers and users have increasingly higher demands for vehicle functionality. Consequently, the number of electronic products and the distribution of complex electronic modules within vehicles have increased. Vehicle controllers need to control numerous electronic products and complex modules; therefore, electromagnetic compatibility (EMC) of the vehicle controller is essential to ensure the normal operation of these internal electronic products and modules. During vehicle design, incompatibility between the vehicle controller and the electronic products or modules is a major reason for vehicle redesign. Furthermore, the accuracy of EMC testing methods for vehicle controllers in related technologies is relatively low, leading to frequent issues where the controller cannot control the internal electronic products or modules, resulting in a poor user experience.

[0003] There is currently no effective solution to the above problems. Summary of the Invention

[0004] This invention provides an electromagnetic compatibility testing method and apparatus for vehicle controllers, which at least solves the technical problem of poor user experience caused by the low accuracy of electromagnetic compatibility testing methods for vehicle controllers.

[0005] According to one aspect of the present invention, an electromagnetic compatibility (EMC) testing method for a vehicle controller is provided, comprising: acquiring initial design task information and an EMC standard for the vehicle controller, wherein the EMC standard is used to represent the standard for the vehicle controller to operate normally in an electromagnetic environment without interfering with other devices; performing risk identification on the initial design task information based on the EMC standard to determine at least one signal source that affects the EMC of the vehicle controller; adjusting the initial design task information according to the signal source type of the at least one signal source to obtain target design task information; and testing the EMC of the vehicle controller based on the target design task information to obtain a test result, wherein the test result is used to indicate whether the vehicle controller possesses EMC.

[0006] Further, the initial design task information is adjusted according to the signal source type of at least one signal source to obtain the target design task information, including: determining a first signal source of sensitive type among at least one signal source, and determining a second signal source of interference type among at least one signal source, wherein the first signal source of sensitive type is used to represent a signal source that is interfered with by other signals, and the second signal source of interference type is used to represent a signal source that interferes with other signals; adjusting the first design information associated with the first signal source and the second design information associated with the second signal source in the initial design task information to obtain the target design task information.

[0007] Further, the first design information associated with the first signal source and the second design information associated with the second signal source in the initial design task information are adjusted to obtain the target design task information, including: adjusting the first design information in the initial design task information based on a first adjustment method to obtain a first adjustment result, wherein the first adjustment method is used to indicate that the protection operation of the first signal source is achieved by adjusting the first design information; adjusting the second design information in the initial design task information based on a second adjustment method to obtain a second adjustment result, wherein the second adjustment method is used to indicate that the isolation operation of the second signal source is achieved by adjusting the second design information; and determining the target design task information based on the first adjustment result and the second adjustment result.

[0008] Further, determining a first signal source of sensitive type among at least one signal source, and determining a second signal source of interference type among at least one signal source, includes: determining the first signal source of sensitive type and the second signal source of interference type from at least one signal source based on a preset list, wherein the preset list contains pre-set signal sources that affect the vehicle controller.

[0009] Furthermore, the electromagnetic compatibility of the vehicle controller is tested based on the target design task information to obtain test results, including: generating electromagnetic compatibility design items for the vehicle controller based on the target design task information, wherein the electromagnetic compatibility design items are used to represent the electromagnetic compatibility design items of the vehicle controller; and testing the vehicle controller based on the electromagnetic compatibility design items to obtain test results.

[0010] Furthermore, the electromagnetic compatibility (EMC) design items for the vehicle controller are generated based on the target design task information, including: constructing structural EMC design items based on the structural design information, shielding design information, and first grounding design information corresponding to the hardware structure involved in the vehicle controller in the target design task information; constructing principle EMC design items based on the power supply design information, interface design information, and protection design information corresponding to the chips involved in the vehicle controller in the target design task information; constructing circuit board EMC design items based on the layout design information, wiring design information, and second grounding design information corresponding to the circuit structure designed in the vehicle controller in the target design task information; and generating EMC design items based on any one or more of the structural EMC design items, principle EMC design items, and circuit board EMC design items.

[0011] Furthermore, the method also includes: outputting the test result when the test result indicates that the vehicle controller does not have electromagnetic compatibility; receiving feedback information on the test result, adjusting the electromagnetic compatibility design items based on the feedback information to obtain the adjusted electromagnetic compatibility design items; and testing the vehicle controller based on the adjusted electromagnetic compatibility design items until the test result indicates that the vehicle controller has electromagnetic compatibility.

[0012] According to another aspect of the present invention, an electromagnetic compatibility (EMC) testing apparatus for a vehicle controller is also provided, comprising: an acquisition module for acquiring initial design task information and an EMC standard for the vehicle controller, wherein the EMC standard is used to represent the standard by which the vehicle controller operates normally in an electromagnetic environment without interfering with other devices; an identification module for performing risk identification on the design task information based on the EMC standard to determine at least one signal source affecting the EMC of the vehicle controller; an adjustment module for adjusting the initial design task information according to the signal source type of the at least one signal source to obtain target design task information; and a testing module for testing the EMC of the vehicle controller based on the target design task information to obtain a test result, wherein the test result is used to indicate whether the vehicle controller possesses EMC.

[0013] According to another aspect of the present invention, an electronic device is also provided, comprising: a memory storing an executable program; and a processor for running the program, wherein the program executes the methods of various embodiments of the present invention during runtime.

[0014] According to another aspect of the present invention, a computer-readable storage medium is also provided, the computer-readable storage medium including a stored executable program, wherein, when the executable program is executed, it controls the device where the computer-readable storage medium is located to perform the methods of various embodiments of the present invention.

[0015] According to another aspect of the present invention, a computer program product is also provided, including a computer program that, when executed by a processor, implements the methods of various embodiments of the present invention.

[0016] In this embodiment of the invention, by acquiring the initial design task information and electromagnetic compatibility (EMC) standards of the vehicle controller, risk identification is performed on the initial design task information based on the EMC standards to determine at least one signal source affecting the EMC of the vehicle controller; the initial design task information is adjusted according to the signal source type of the at least one signal source to obtain target design task information; and the EMC of the vehicle controller is tested based on the target design task information to obtain test results. This invention, after obtaining the initial design task information, adjusts the initial design task information according to the signal source type and tests based on the adjusted target design task information. By adjusting the initial design task information, a new target design task is obtained and tested, thereby achieving the technical effect of improving the accuracy of vehicle controller EMC testing, and thus solving the technical problem of poor user experience caused by the low accuracy of vehicle controller EMC testing methods. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a flowchart illustrating an optional electromagnetic compatibility testing method for a vehicle controller according to an embodiment of the present invention.

[0019] Figure 2 This is a flowchart of an optional electromagnetic compatibility testing method for a vehicle controller according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of an optional electromagnetic compatibility testing device for a vehicle controller according to an embodiment of the present invention. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "possessing," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] Example 1

[0024] According to an embodiment of the present invention, an embodiment of an electromagnetic compatibility testing method for a vehicle controller is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0025] Figure 1 This is a flowchart illustrating an optional electromagnetic compatibility testing method for a vehicle controller according to an embodiment of the present invention, as shown below. Figure 1 As shown, the method includes the following steps:

[0026] Step S102: Obtain the initial design task information and electromagnetic compatibility standards of the vehicle controller. The electromagnetic compatibility standards are used to indicate the standards for the vehicle controller to operate normally in an electromagnetic environment without interfering with other devices.

[0027] The aforementioned vehicles refer to vehicles in the design phase, especially those requiring planning and design of in-vehicle electronic products and modules. This includes, but is not limited to, cars, trucks, and trains in the design phase.

[0028] The aforementioned initial design task information refers to the initial design task information for the vehicle controller. This information includes the electronic products and modules to be installed inside the vehicle, as well as their installation locations. It is used to implement the vehicle design scheme, and the placement of the electronic products and modules inside the vehicle is based on this initial design task information. This initial design task information can be provided in advance manually or pre-planned using design software.

[0029] The aforementioned electromagnetic compatibility (EMC) standard refers to the ability of an electronic device to operate normally in an electromagnetic environment without interfering with other devices. An EMC standard is a set of regulations and requirements used to guide the design, manufacture, and testing of electronic devices to ensure their electromagnetic compatibility. In this invention, the EMC standard refers to the EMC standard for vehicle controllers. Electronic products and modules inside a vehicle must meet the EMC standard of the vehicle controller; otherwise, the vehicle controller cannot properly control the electronic products and modules inside the vehicle.

[0030] In one optional embodiment, the initial design task information of the vehicle controller can be manually planned, and the electromagnetic compatibility (EMC) standard of the vehicle controller can be obtained by manual query. The EMC standard is the standard by which the vehicle controller can operate normally in an electromagnetic environment without interfering with other devices. The initial design task information needs to meet vehicle system functional requirements, system performance requirements, structural requirements, and verification requirements. Vehicle system functions refer to the functions required by the vehicle, including but not limited to audio-visual and navigation functions. These functional requirements can be determined based on the actual usage scenario of the vehicle and the target user. System performance requirements refer to the performance of the vehicle's internal electronic products and modules, including but not limited to display resolution and speaker volume range. These performance requirements can also be determined based on the actual usage scenario of the vehicle and the target user. Structural requirements refer to the requirements of the vehicle's internal structure, including but not limited to vehicle size and engine location. Verification requirements refer to the verification information of the vehicle controller, meaning that the vehicle's internal electronic products and modules need to be verified and controlled by the controller.

[0031] In another optional embodiment, the vehicle controller can be designed using vehicle design software. After design, initial design task information for the vehicle controller is obtained, and the electromagnetic compatibility (EMC) standard for the vehicle controller is obtained through manual querying. The EMC standard is the standard by which the vehicle controller can operate normally in an electromagnetic environment without interfering with other devices. The initial design task information needs to meet vehicle system functional requirements, system performance requirements, structural requirements, and verification requirements. Vehicle system functions refer to the functions required by the vehicle, including but not limited to audio-visual and navigation functions. These functional requirements can be determined based on the actual usage scenario and target users. System performance requirements refer to the performance of the vehicle's internal electronic products and modules, including but not limited to display resolution and speaker volume range. These performance requirements can also be determined based on the actual usage scenario and target users. Structural requirements refer to the requirements of the vehicle's internal structure, including but not limited to vehicle size and engine location. Verification requirements refer to the verification information of the vehicle controller, meaning that the vehicle's internal electronic products and modules need to be verified and controlled by the controller.

[0032] Step S104: Based on electromagnetic compatibility standards, perform risk identification on the initial design task information to determine at least one signal source that affects the electromagnetic compatibility of the vehicle controller.

[0033] The aforementioned risk identification refers to determining whether the electronic products and modules included in the initial design task information contain electronic products or modules that do not meet the electromagnetic compatibility standards for vehicle controllers.

[0034] The aforementioned signal sources refer to the electronic products or modules included in the initial design task information. During operation, the numerous electronic products and modules in a vehicle will inevitably generate electromagnetic interference or be affected by external electromagnetic interference. Some electronic products or modules do not meet the electromagnetic compatibility standards of the vehicle controller. The aforementioned signal sources affecting the electromagnetic compatibility of the vehicle controller refer to the electronic products or modules included in the initial design task information that generate electromagnetic interference that does not meet the electromagnetic compatibility standards of the vehicle controller, or electronic products or modules that cannot operate normally due to interference from electronic products or modules that meet the electromagnetic compatibility standards of the vehicle controller.

[0035] In one optional embodiment, the signal sources in the initial design task information can be risk-identified based on electromagnetic compatibility standards. When a signal source in the initial design task information does not meet the electromagnetic compatibility standards of the vehicle controller, this signal source is determined to be a signal source that affects the electromagnetic compatibility of the vehicle controller.

[0036] Step S106: Adjust the initial design task information according to the signal source type of at least one signal source to obtain the target design task information.

[0037] The aforementioned signal sources can be signal sources inside the vehicle or signal sources that the vehicle may encounter while driving, such as signal sources inside the vehicle like mobile phones and computers, and signal sources outside the vehicle like antennas and radar.

[0038] The above-mentioned signal source types are those that generate signals that do not meet the electromagnetic compatibility standards of the vehicle controller. The classification of signal sources is based on how the signal sources affect the vehicle controller in the initial design task information, thus obtaining the signal source type.

[0039] In one optional embodiment, the initial design task information can be adjusted based on the type of signal source affecting the electromagnetic compatibility (EMC) of the vehicle controller, including adjusting the arrangement or environment of the signal source. This includes, but is not limited to, shielding or electrically isolating the signal source that affects the EMC of the vehicle controller.

[0040] The aforementioned target design task information refers to the target design task information obtained after adjusting the initial design task information. The target design task information is more specific than the initial design task information, and it also increases the likelihood of the vehicle controller having electromagnetic compatibility.

[0041] In one optional embodiment, the type of signal source affecting the electromagnetic compatibility of the vehicle controller is determined, and based on the type of signal source affecting the electromagnetic compatibility of the vehicle controller, the signal source affecting the electromagnetic compatibility of the vehicle controller is protected or isolated in order to adjust the initial design task information and obtain the target design task information.

[0042] Step S108: Based on the target design task information, the electromagnetic compatibility of the vehicle controller is tested to obtain the test results, wherein the test results are used to indicate whether the vehicle controller has electromagnetic compatibility.

[0043] The aforementioned electromagnetic compatibility test of the vehicle controller refers to testing whether the vehicle controller has electromagnetic compatibility when the vehicle controller is designed and planned according to the target design task information after obtaining the target design task information. The test content includes testing the vehicle's internal structure, signal source principle, and whether the wiring is reasonable.

[0044] The above test results indicate whether the vehicle controller has electromagnetic compatibility or not. If the test result indicates that the vehicle controller does not have electromagnetic compatibility, the target design task information is adjusted, and the electromagnetic compatibility of the vehicle controller is tested again until the test result indicates that the vehicle controller has electromagnetic compatibility. If the test result indicates that the vehicle controller has electromagnetic compatibility, the vehicle electromagnetic compatibility test ends.

[0045] In one optional embodiment, the electromagnetic compatibility of the vehicle controller is tested based on the target design task information. The test examines whether the vehicle's internal structure, signal source principle, wiring, etc., comply with electromagnetic compatibility requirements, in order to determine whether the vehicle controller has electromagnetic compatibility.

[0046] By acquiring the initial design task information and electromagnetic compatibility (EMC) standards of the vehicle controller, and performing risk identification based on the EMC standards, at least one signal source affecting the EMC of the vehicle controller is identified. The initial design task information is then adjusted according to the signal source type of the at least one signal source to obtain target design task information. The EMC of the vehicle controller is then tested based on the target design task information to obtain the test results. This invention, after obtaining the initial design task information, adjusts it according to the signal source type and conducts tests based on the adjusted target design task information. This achieves the goal of improving the EMC of the vehicle controller, thereby enhancing vehicle design efficiency and solving the technical problem of poor user experience caused by the low accuracy of current EMC testing methods for vehicle controllers.

[0047] Optionally, the initial design task information is adjusted according to the signal source type of at least one signal source to obtain target design task information, including: determining a first signal source of sensitive type among at least one signal source, and determining a second signal source of interference type among at least one signal source, wherein the first signal source of sensitive type is used to represent a signal source that is interfered with by other signals, and the second signal source of interference type is used to represent a signal source that interferes with other signals; adjusting the first design information associated with the first signal source and the second design information associated with the second signal source in the initial design task information to obtain target design task information.

[0048] The first signal source mentioned above is a sensitive type of signal source. Sensitive type signal sources are easily affected by the controller or other signal sources, which may cause the sensitive signal source to malfunction.

[0049] The second signal source mentioned above is an interference-type signal source. Interference-type signal sources are prone to affecting the controller or other signal sources, causing the controller or other signal sources to malfunction.

[0050] The aforementioned first design information is the design information associated with the first signal source in the initial design task information, including the installation location and connection relationship of the first signal source.

[0051] The aforementioned second design information is the design information associated with the second signal source in the initial design task information, including the installation location and connection relationship of the second signal source.

[0052] In one optional embodiment, after identifying the signal sources affecting the electromagnetic compatibility of the vehicle controller, these signal sources are classified as sensitive signal sources (i.e., first signal sources) based on their susceptibility to influence from the controller or other signal sources; and as interfering signal sources (i.e., second signal sources) based on their susceptibility to influence the controller or other signal sources. The first design information of the first signal source is adjusted based on its signal source type, for example, by isolating, protecting, or changing its installation location. Similarly, the second design information of the second signal source is adjusted based on its signal source type, for example, by isolating, protecting, or changing its installation location. The target design task information is then obtained based on the adjusted first and second design information.

[0053] Optionally, adjusting the first design information associated with the first signal source and the second design information associated with the second signal source in the initial design task information to obtain the target design task information includes: adjusting the first design information in the initial design task information based on a first adjustment method to obtain a first adjustment result, wherein the first adjustment method is used to indicate that the protection operation of the first signal source is achieved by adjusting the first design information; adjusting the second design information in the initial design task information based on a second adjustment method to obtain a second adjustment result, wherein the second adjustment method is used to indicate that the isolation operation of the second signal source is achieved by adjusting the second design information; and determining the target design task information based on the first adjustment result and the second adjustment result.

[0054] The aforementioned first adjustment method is to adjust the first design information based on the signal source type of the first signal source, i.e. the sensitivity type, in order to reduce the sensitivity of the first signal source. The methods for adjusting the first design information include, but are not limited to: adding barriers and isolation, optimizing the signal source circuit layout, and designing circuit protection.

[0055] The second adjustment method mentioned above is to adjust the second design information based on the signal source type of the second signal source, i.e. the interference type, in order to reduce the interference of the second signal source. The methods for adjusting the second design information include, but are not limited to: designing shielding and grounding, adding barriers and isolation, and optimizing the layout of the signal source.

[0056] In one optional embodiment, the first design information in the initial design task information can be adjusted using a first adjustment method for designing circuit protection to obtain a first adjustment result. Specifically, the first adjustment method for designing circuit protection adjusts the first design information of a sensitive type of first signal source in the initial design task information to protect the sensitive type of first signal source in the initial design task information. The second design information in the initial design task information can be adjusted using a second adjustment method that adds barriers and isolation to obtain a second adjustment result. Specifically, the second adjustment method that adds barriers and isolation adjusts the second design information of an interference type of second signal source in the initial design task information to isolate the interference type of second signal source in the initial design task information. After obtaining the first and second adjustment results, the target design task information is determined based on the first and second adjustment results.

[0057] In another optional embodiment, the first design information in the initial design task information can be adjusted by adding barriers and isolation or optimizing the signal source circuit layout as a first adjustment method to obtain a first adjustment result. This adjustment involves adding barriers and isolation or optimizing the signal source circuit layout to adjust the first design information of sensitive first signal sources in the initial design task information, thereby protecting the sensitive first signal sources in the initial design task information. The second design information in the initial design task information can also be adjusted by adding barriers and isolation as a second adjustment method to obtain a second adjustment result. This adjustment involves adding barriers and isolation to adjust the second design information of interference-type second signal sources in the initial design task information, thereby isolating the interference-type second signal sources in the initial design task information. After obtaining the first and second adjustment results, the target design task information is determined based on the first and second adjustment results.

[0058] In another optional embodiment, the first design information in the initial design task information can be adjusted by designing a first adjustment method for circuit protection to obtain a first adjustment result. This adjustment method adjusts the first design information of the first signal source of a sensitive type in the initial design task information to protect the first signal source of the sensitive type in the initial design task information. The second design information in the initial design task information can also be adjusted by designing shielding and grounding or optimizing the signal source layout to obtain a second adjustment result. This adjustment method optimizes the second signal source of the interference type in the initial design task information. After obtaining the first and second adjustment results, the target design task information is determined based on the first and second adjustment results.

[0059] Optionally, determining a first signal source of a sensitive type from at least one signal source, and determining a second signal source of an interference type from at least one signal source, includes: determining the first signal source of a sensitive type and the second signal source of an interference type from at least one signal source based on a preset list, wherein the preset list contains pre-set signal sources that affect the vehicle controller.

[0060] The aforementioned preset list is a pre-established list of signal sources. The preset list contains basic information about the signal sources that affect the vehicle controller, including but not limited to the signal source function, signal name, and signal source type. Based on the preset list, a first signal source belonging to the sensitive type and a second signal source belonging to the interference type are determined from at least one signal source.

[0061] In one optional embodiment, a preset list is established in advance, in which basic information of signal sources that affect the vehicle controller is listed, including the function of the signal source, the signal name, the signal source type, etc. After obtaining the signal sources that affect the electromagnetic compatibility of the vehicle controller, the first signal source belonging to the sensitive type and the second signal source belonging to the interference type can be determined manually.

[0062] In another optional embodiment, a preset list is established in advance to list the basic information of signal sources that affect the vehicle controller, including the function of the signal source, the signal name, the signal source type, etc. After obtaining the signal sources that affect the electromagnetic compatibility of the vehicle controller, a computer program can automatically determine the first signal source that is sensitive and the second signal source that is interference.

[0063] Optionally, the electromagnetic compatibility of the vehicle controller is tested based on the target design task information to obtain test results, including: generating electromagnetic compatibility design items for the vehicle controller based on the target design task information, wherein the electromagnetic compatibility design items are used to represent the electromagnetic compatibility design items of the vehicle controller; and testing the vehicle controller based on the electromagnetic compatibility design items to obtain test results.

[0064] The aforementioned electromagnetic compatibility design items are test items that characterize whether the vehicle controller has electromagnetic compatibility. These include, but are not limited to, the vehicle's internal structure, signal source principle, wiring, etc. Test results are obtained by testing the electromagnetic compatibility design items.

[0065] In one optional embodiment, electromagnetic compatibility (EMC) design items for the vehicle controller are generated based on the target design task information. These EMC design items characterize whether the vehicle's internal structure, signal source principles, wiring, and other designs enable the vehicle controller to possess EMC capabilities. The vehicle controller is then tested based on these EMC design items to determine the rationality of the planning of the vehicle's internal structure, signal source principles, wiring, etc., and the test results are obtained.

[0066] Optionally, generating electromagnetic compatibility (EMC) design items for the vehicle controller based on the target design task information includes: constructing structural EMC design items based on the structural design information, shielding design information, and first grounding design information corresponding to the hardware structure involved in the vehicle controller in the target design task information; constructing principle EMC design items based on the power supply design information, interface design information, and protection design information corresponding to the chips involved in the vehicle controller in the target design task information; constructing circuit board EMC design items based on the layout design information, wiring design information, and second grounding design information corresponding to the circuit structure designed in the vehicle controller in the target design task information; and generating EMC design items based on any one or more of the structural EMC design items, principle EMC design items, and circuit board EMC design items.

[0067] The aforementioned structural electromagnetic compatibility design items are design items that characterize whether the internal structure of the vehicle meets the electromagnetic compatibility requirements of the vehicle controller. Among them, the structural electromagnetic compatibility design items include, but are not limited to, the structural design information, shielding design information, and first grounding design information corresponding to the hardware structure involved in the vehicle controller.

[0068] The aforementioned principle electromagnetic compatibility design items are design items that characterize whether the principle of the signal source inside the vehicle complies with the electromagnetic compatibility of the vehicle controller. Among them, the principle electromagnetic compatibility design items include, but are not limited to, the power supply design information, interface design information and protection design information of the chips involved in the vehicle controller.

[0069] The aforementioned electromagnetic compatibility (EMC) design items for the circuit board are design items that characterize whether the wiring inside the vehicle complies with the electromagnetic compatibility of the vehicle controller. These EMC design items include, but are not limited to, the layout design information, wiring design information, and second grounding design information corresponding to the circuit structure designed for the vehicle controller.

[0070] The aforementioned first grounding design information refers to the grounding information of the vehicle's internal signal sources.

[0071] The aforementioned second grounding design information refers to the grounding information of the vehicle's internal circuit boards.

[0072] In one optional embodiment, the structural electromagnetic compatibility (EMC) design items, the principle EMC design items, and the circuit board EMC design items are integrated to generate an EMC design item. The structural EMC design item includes, but is not limited to, the structural design information, shielding design information, and first grounding design information corresponding to the hardware structure involved in the vehicle controller. The principle EMC design item includes, but is not limited to, the power supply design information, interface design information, and protection design information corresponding to the chips involved in the vehicle controller. The circuit board EMC design item includes, but is not limited to, the layout design information, wiring design information, and second grounding design information corresponding to the circuit structure designed for the vehicle controller.

[0073] Optionally, the method further includes: outputting the test result when the test result indicates that the vehicle controller does not have electromagnetic compatibility; receiving feedback information on the test result, adjusting the electromagnetic compatibility design items based on the feedback information to obtain the adjusted electromagnetic compatibility design items; and testing the vehicle controller based on the adjusted electromagnetic compatibility design items until the test result indicates that the vehicle controller has electromagnetic compatibility.

[0074] The above feedback information represents the test results of whether the vehicle controller has electromagnetic compatibility. The feedback information is generated based on the user's adjustment suggestions for electromagnetic compatibility design items according to the test results.

[0075] In one optional embodiment, when the test result indicates that the vehicle controller lacks electromagnetic compatibility (EMC), the system outputs "Vehicle controller lacks EMC" and generates feedback information. This feedback information explains the reasons for the EMC deficiency, including unreasonable vehicle layout and ineffective shielding of signal sources affecting the controller. Based on this feedback, the EMC design items are adjusted by modifying structural, principle, or circuit board EMC design items to obtain the adjusted EMC design items. After obtaining the adjusted EMC design items, the vehicle controller is tested again until the test results indicate that the vehicle controller possesses EMC.

[0076] The following is combined Figure 2 A preferred embodiment of the present invention will be described in detail below, wherein, Figure 2 This is a flowchart of an optional electromagnetic compatibility testing method for a vehicle controller according to an embodiment of the present invention, such as... Figure 2 As shown, the electromagnetic compatibility test method for vehicle controllers includes the following steps:

[0077] Step S201: Start vehicle controller compatibility testing, obtain initial design task information, and obtain electromagnetic compatibility standards.

[0078] In one optional embodiment, the initial design task information of the vehicle controller can be manually planned, and the electromagnetic compatibility (EMC) standard of the vehicle controller can be obtained by manual query. The EMC standard is the standard by which the vehicle controller can operate normally in an electromagnetic environment without interfering with other devices. The initial design task information needs to meet vehicle system functional requirements, system performance requirements, structural requirements, and verification requirements. Vehicle system functions refer to the functions required by the vehicle, including but not limited to audio-visual and navigation functions. These functional requirements can be determined based on the actual usage scenario of the vehicle and the target user. System performance requirements refer to the performance of the vehicle's internal electronic products and modules, including but not limited to display resolution and speaker volume range. These performance requirements can also be determined based on the actual usage scenario of the vehicle and the target user. Structural requirements refer to the requirements of the vehicle's internal structure, including but not limited to vehicle size and engine location. Verification requirements refer to the verification information of the vehicle controller, meaning that the vehicle's internal electronic products and modules need to be verified and controlled by the controller.

[0079] Step S202: Based on electromagnetic compatibility standards, risk identification is performed on the initial design task information to determine the signal sources that affect the electromagnetic compatibility of the vehicle controller.

[0080] In one optional embodiment, the signal sources in the initial design task information can be risk-identified based on electromagnetic compatibility standards. When a signal source in the initial design task information does not meet the electromagnetic compatibility standards of the vehicle controller, this signal source is determined to be a signal source that affects the electromagnetic compatibility of the vehicle controller.

[0081] Step S203: Determine the type of signal source that affects the electromagnetic compatibility of the vehicle controller, determine the first signal source and the second signal source, and determine the first design information and the second design information.

[0082] In one optional embodiment, a preset list is established in advance, in which basic information of signal sources that affect the vehicle controller is listed, including the function of the signal source, the signal name, the signal source type, etc. After obtaining the signal sources that affect the electromagnetic compatibility of the vehicle controller, the first signal source belonging to the sensitive type and the second signal source belonging to the interference type can be determined manually, and the first design information corresponding to the first signal source and the second design information corresponding to the second signal source can be obtained.

[0083] Step S204: Adjust the first design information based on the first adjustment method, and adjust the second design information based on the second adjustment method to obtain the target design task information.

[0084] In one optional embodiment, the first design information in the initial design task information can be adjusted using a first adjustment method for designing circuit protection to obtain a first adjustment result. Specifically, the first adjustment method for designing circuit protection adjusts the first design information of a sensitive type of first signal source in the initial design task information to protect the sensitive type of first signal source in the initial design task information. The second design information in the initial design task information can be adjusted using a second adjustment method that adds barriers and isolation to obtain a second adjustment result. Specifically, the second adjustment method that adds barriers and isolation adjusts the second design information of an interference type of second signal source in the initial design task information to isolate the interference type of second signal source in the initial design task information. After obtaining the first and second adjustment results, the target design task information is determined based on the first and second adjustment results.

[0085] Step S205: Obtain the electromagnetic compatibility design items of the vehicle controller based on the target design task information.

[0086] In one optional embodiment, the structural electromagnetic compatibility (EMC) design items, the principle EMC design items, and the circuit board EMC design items are integrated to generate an EMC design item. The structural EMC design item includes, but is not limited to, the structural design information, shielding design information, and first grounding design information corresponding to the hardware structure involved in the vehicle controller. The principle EMC design item includes, but is not limited to, the power supply design information, interface design information, and protection design information corresponding to the chip involved in the vehicle controller. The circuit board EMC design item includes, but is not limited to, the layout design information, wiring design information, and second grounding design information corresponding to the circuit structure involved in the vehicle controller.

[0087] Step S206: Test the vehicle controller based on the electromagnetic compatibility design items of the vehicle controller and obtain the test results.

[0088] In one optional embodiment, the electromagnetic compatibility design items of the vehicle controller are used to test the structural design information, shielding design information, and first grounding design information of the hardware structure involved in the vehicle controller; the power supply design information, interface design information, and protection design information of the chip; and the layout design information, wiring design information, and second grounding design information of the circuit structure, and the test results are obtained.

[0089] Step S207: Test whether the vehicle controller has electromagnetic compatibility based on the electromagnetic compatibility design items of the vehicle controller.

[0090] In one optional embodiment, when the test result indicates that the vehicle controller lacks electromagnetic compatibility, the system outputs the test result "Vehicle controller lacks electromagnetic compatibility," generates feedback information, and proceeds to step S208. The feedback information indicates the reasons for the vehicle controller's lack of electromagnetic compatibility, including unreasonable vehicle layout or failure to effectively shield signal sources affecting the vehicle controller. When the test result indicates that the vehicle controller possesses electromagnetic compatibility, the vehicle controller electromagnetic compatibility test ends, and step S209 is performed.

[0091] Step S208: Adjust the electromagnetic compatibility design items based on the feedback information.

[0092] In one optional embodiment, based on feedback information, the electromagnetic compatibility (EMC) design items are adjusted by modifying structural EMC design items, principle EMC design items, or circuit board EMC design items to obtain adjusted EMC design items. After obtaining the adjusted EMC design items, the vehicle controller is tested again until the test results indicate that the vehicle controller has EMC capabilities.

[0093] Step S209: End the electromagnetic compatibility test of the vehicle controller.

[0094] In one alternative embodiment, the vehicle controller compatibility test is terminated once the vehicle controller has achieved electromagnetic compatibility.

[0095] Example 2

[0096] According to another aspect of the present invention, an electromagnetic compatibility testing device for a vehicle controller is also provided. This device can perform the electromagnetic compatibility testing method for the vehicle controller described in the above embodiments. The specific implementation method and preferred application scenarios are the same as those described in the above embodiments, and will not be repeated here.

[0097] Figure 3 This is a schematic diagram of the structure of an optional electromagnetic compatibility testing device for a vehicle controller according to an embodiment of the present invention, as shown below. Figure 3 As shown, the device includes: an acquisition module 30, used to acquire initial design task information and electromagnetic compatibility (EMC) standards for a vehicle controller, wherein the EMC standards represent the standards by which the vehicle controller operates normally in an electromagnetic environment without interfering with other devices; an identification module 32, used to identify risks in the design task information based on the EMC standards, and determine at least one signal source that affects the EMC of the vehicle controller; an adjustment module 34, used to adjust the initial design task information according to the signal source type of the at least one signal source, to obtain target design task information; and a testing module 36, used to test the EMC of the vehicle controller based on the target design task information, and obtain test results, wherein the test results indicate whether the vehicle controller possesses EMC capabilities.

[0098] Optionally, the adjustment module 30 further includes a signal unit and an acquisition unit. The signal unit is used to determine a first signal source of a sensitive type from at least one signal source, and a second signal source of an interference type from at least one signal source. The first signal source of the sensitive type represents a signal source interfered with by other signals, and the second signal source of the interference type represents a signal source interfering with other signals. The acquisition unit is used to adjust the first design information associated with the first signal source and the second design information associated with the second signal source in the initial design task information to obtain the target design task information.

[0099] Optionally, the acquisition unit is further configured to adjust the first design information in the initial design task information based on the first adjustment method to obtain a first adjustment result, wherein the first adjustment method is used to indicate that the protection operation of the first signal source is achieved by adjusting the first design information; adjust the second design information in the initial design task information based on the second adjustment method to obtain a second adjustment result, wherein the second adjustment method is used to indicate that the isolation operation of the second signal source is achieved by adjusting the second design information; and determine the target design task information based on the first adjustment result and the second adjustment result.

[0100] Optionally, the signal unit is further configured to determine, based on a preset list, a first signal source belonging to the sensitive type and a second signal source belonging to the interference type from at least one signal source, wherein the preset list contains pre-set signal sources that affect the vehicle controller.

[0101] Optionally, the test module 36 includes a generation unit and a test unit. The generation unit is used to generate electromagnetic compatibility (EMC) design items for the vehicle controller based on the target design task information. These EMC design items represent design items that enable the vehicle controller to perform EMC operations. The test unit is used to test the vehicle controller based on the EMC design items and obtain test results.

[0102] Optionally, the generation unit further constructs a structural electromagnetic compatibility (EMC) design item based on the structural design information, shielding design information, and first grounding design information corresponding to the hardware structure involved in the vehicle controller in the target design task information; constructs a principle EMC design item based on the power supply design information, interface design information, and protection design information corresponding to the chip involved in the vehicle controller in the target design task information; constructs a circuit board EMC design item based on the layout design information, wiring design information, and second grounding design information corresponding to the circuit structure designed in the vehicle controller in the target design task information; and generates an EMC design item based on any one or more of the structural EMC design item, principle EMC design item, and circuit board EMC design item.

[0103] Optionally, the test module 36 further includes an output unit, which outputs the test result when the test result indicates that the vehicle controller does not have electromagnetic compatibility; a feedback unit, which receives feedback information on the test result and adjusts the electromagnetic compatibility design items based on the feedback information to obtain the adjusted electromagnetic compatibility design items; the test unit is also used to test the vehicle controller based on the adjusted electromagnetic compatibility design items until the test result indicates that the vehicle controller has electromagnetic compatibility.

[0104] Example 3

[0105] Embodiments of this application also provide an electronic device, including: a memory storing an executable program; and a processor for running the program, wherein the program executes the methods in various embodiments of the present invention during runtime.

[0106] Example 4

[0107] Embodiments of this application also provide a computer-readable storage medium including a stored executable program, wherein, when the executable program is running, it controls the device where the computer-readable storage medium is located to perform the methods of various embodiments of the present invention.

[0108] Example 5

[0109] Embodiments of this application also provide a computer program product, including a computer program that, when executed by a processor, implements the methods of various embodiments of the present invention.

[0110] Example 6

[0111] Embodiments of this application also provide a computer program that, when executed by a processor, implements the methods described in the various embodiments of the present invention.

[0112] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0113] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0114] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0115] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0116] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0117] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0118] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for testing the electromagnetic compatibility of a vehicle controller, characterized in that, include: Obtain the initial design task information and electromagnetic compatibility standards of the vehicle controller, wherein the electromagnetic compatibility standards are used to indicate the standard for the vehicle controller to operate normally in an electromagnetic environment without interfering with other devices; Based on the electromagnetic compatibility standard, the initial design task information is risk-identified to determine at least one signal source that affects the electromagnetic compatibility of the vehicle controller. The risk identification is used to determine whether the electronic products and electronic modules included in the initial design task information contain electronic products or electronic modules that do not meet the electromagnetic compatibility standard of the vehicle controller. The initial design task information is adjusted according to the signal source type of the at least one signal source to obtain the target design task information; The electromagnetic compatibility of the vehicle controller is tested based on the target design task information, and the test results are obtained. The test results are used to indicate whether the vehicle controller has the electromagnetic compatibility. The process of adjusting the initial design task information based on the signal source type of the at least one signal source to obtain target design task information includes: determining a first signal source among the at least one signal sources whose signal source type is of a sensitive type, and determining a second signal source among the at least one signal sources whose signal source type is of an interference type, wherein the first signal source is used to represent a signal source that is easily affected by the vehicle controller or other signal sources, causing it to malfunction, and the second signal source is used to represent a signal source that is easily affected by the vehicle controller or other signal sources, causing the vehicle controller or other signal sources to malfunction; and adjusting the first design information associated with the first signal source and the second design information associated with the second signal source in the initial design task information to obtain the target design task information.

2. The electromagnetic compatibility testing method for a vehicle controller according to claim 1, characterized in that, The target design task information is obtained by adjusting the first design information associated with the first signal source and the second design information associated with the second signal source in the initial design task information, including: The first design information in the initial design task information is adjusted based on the first adjustment method to obtain a first adjustment result, wherein the first adjustment method is used to indicate that the first design information is adjusted to achieve the protection operation of the first signal source; The second design information in the initial design task information is adjusted based on the second adjustment method to obtain a second adjustment result, wherein the second adjustment method is used to indicate that the isolation operation of the second signal source is achieved by adjusting the second design information; The target design task information is determined based on the first adjustment result and the second adjustment result.

3. The electromagnetic compatibility testing method for a vehicle controller according to claim 1, characterized in that, Determining that the signal source type of the at least one signal source belongs to a first signal source of a sensitive type, and determining that the signal source type of the at least one signal source belongs to a second signal source of an interference type, includes: Based on a preset list, a first signal source belonging to the sensitive type and a second signal source belonging to the interference type are determined from the at least one signal source, wherein the preset list contains pre-set signal sources that affect the vehicle controller.

4. The electromagnetic compatibility testing method for a vehicle controller according to claim 1, characterized in that, The electromagnetic compatibility of the vehicle controller is tested based on the target design task information, and the test results are obtained, including: Based on the target design task information, an electromagnetic compatibility design item for the vehicle controller is generated, wherein the electromagnetic compatibility design item is used to indicate that the vehicle controller has the electromagnetic compatibility design item; The vehicle controller was tested based on the electromagnetic compatibility design items, and the test results were obtained.

5. The electromagnetic compatibility testing method for a vehicle controller according to claim 4, characterized in that, Based on the target design task information, the electromagnetic compatibility design items for the vehicle controller are generated, including: Based on the structural design information, shielding design information, and first grounding design information corresponding to the hardware structure of the vehicle controller in the target design task information, construct a structural electromagnetic compatibility design item; Based on the power supply design information, interface design information, and protection design information of the chip involved in the vehicle controller in the target design task information, the principle of electromagnetic compatibility design items is constructed. Based on the layout design information, wiring design information and second grounding design information corresponding to the circuit structure of the vehicle controller designed in the target design task information, an electromagnetic compatibility design item for the circuit board is constructed. The electromagnetic compatibility design item is generated based on any one or more of the structural electromagnetic compatibility design item, the principle electromagnetic compatibility design item, and the circuit board electromagnetic compatibility design item.

6. The electromagnetic compatibility testing method for a vehicle controller according to claim 4, characterized in that, The method further includes: If the test result indicates that the vehicle controller does not possess the required electromagnetic compatibility, the test result is output. Receive feedback information on the test results, and adjust the electromagnetic compatibility design items based on the feedback information to obtain the adjusted electromagnetic compatibility design items; The vehicle controller is tested based on the adjusted electromagnetic compatibility design items until the test results indicate that the vehicle controller possesses the electromagnetic compatibility.

7. An electromagnetic compatibility testing device for a vehicle controller, characterized in that, include: The acquisition module is used to acquire the initial design task information and electromagnetic compatibility standards of the vehicle controller, wherein the electromagnetic compatibility standards are used to indicate the standard for the vehicle controller to operate normally in an electromagnetic environment without interfering with other devices; An identification module is used to identify risks in the design task information based on the electromagnetic compatibility standard, and to determine at least one signal source that affects the electromagnetic compatibility of the vehicle controller. The risk identification is used to determine whether the electronic products and electronic modules included in the initial design task information contain electronic products or electronic modules that do not meet the electromagnetic compatibility standard of the vehicle controller. An adjustment module is used to adjust the initial design task information according to the signal source type of the at least one signal source to obtain target design task information; The testing module is used to test the electromagnetic compatibility of the vehicle controller based on the target design task information and obtain test results, wherein the test results are used to indicate whether the vehicle controller has the electromagnetic compatibility. The adjustment module is further configured to determine a first signal source of the at least one signal source whose signal source type is of the sensitive type, and to determine a second signal source of the at least one signal source whose signal source type is of the interference type. The first signal source is used to represent a signal source that is easily affected by the vehicle controller or other signal sources, causing it to malfunction. The second signal source is used to represent a signal source that is easily affected by the vehicle controller or other signal sources, causing the vehicle controller or other signal sources to malfunction. The module adjusts the first design information associated with the first signal source and the second design information associated with the second signal source in the initial design task information to obtain the target design task information.

8. An electronic device, characterized in that, include: Memory, which stores executable programs; A processor for running the program, wherein the program, when running, performs the method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored executable program, wherein, when the executable program is executed, it controls the device on which the storage medium is located to perform the method according to any one of claims 1 to 6.

10. A computer program product, characterized in that, Includes a computer program that, when executed by a processor, implements the method according to any one of claims 1 to 6.

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