Vehicle test system

Abstract

The utility model provides a vehicle testing system which comprises a main controller, the main controller comprises a vehicle body domain main acquisition circuit, a driving domain main processing circuit, a cabin domain main processing circuit and a main processing chip, and the vehicle body domain main acquisition circuit is used for being in communication connection with a vehicle body domain of a vehicle; the vehicle body domain main acquisition circuit is used for acquiring a first vehicle body domain signal of a vehicle body domain; the driving domain main processing circuit is used for being in communication connection with a driving domain of the vehicle, and the driving domain main processing circuit is used for receiving and preprocessing a first driving domain signal of the driving domain; the cabin domain main processing circuit is used for being in communication connection with a cabin domain of the vehicle, and the cabin domain main processing circuit is used for receiving and preprocessing a first cabin domain signal of the cabin domain; the main processing chip is in communication connection with the vehicle body domain main acquisition circuit, the driving domain main processing circuit and the cabin domain main processing circuit, and the main processing chip is used for processing the first vehicle body domain signal, the first driving domain signal and the first cabin domain signal. Therefore, the three domains can be tested at the same time, so that the test efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle controller testing, and in particular to a vehicle testing system. Background Art

[0002] As vehicles become increasingly intelligent and digital, the body, cockpit, and driver domains have gradually become the core components of modern new energy vehicle electronic control systems. To ensure the high stability and reliability of controllers in these three domains even in complex environments, testing of these three domains is typically required, collecting, processing, and analyzing a variety of signals.

[0003] Existing controller testing systems usually only target a single domain, and lack a universal testing system that can be applied to different vehicle models and can simultaneously test the three major domain controllers of the body, smart cockpit, and smart driving. Utility Model Content

[0004] This application provides a vehicle testing system, aiming to solve the above-mentioned technical problems existing in the prior art.

[0005] To solve the above problems, the vehicle testing system provided by the present application includes a body domain main acquisition circuit, a driving domain main processing circuit, a cockpit domain main processing circuit and a main processing chip. The body domain main acquisition circuit is used to communicate with the body domain of the vehicle, and the body domain main acquisition circuit is used to collect the first body domain signal of the body domain; the driving domain main processing circuit is used to communicate with the driving domain of the vehicle, and the driving domain main processing circuit is used to receive and pre-process the first driving domain signal of the driving domain; the cockpit domain main processing circuit is used to communicate with the cockpit domain of the vehicle, and the cockpit domain main processing circuit is used to receive and pre-process the first cockpit domain signal of the cockpit domain; the main processing chip is respectively communicated with the body domain main acquisition circuit, the driving domain main processing circuit and the cockpit domain main processing circuit, and the main processing chip is used to process the first body domain signal, the first driving domain signal and the first cockpit domain signal.

[0006] In some embodiments, the body domain main acquisition circuit includes a bridge drive signal acquisition module, which is used to communicate with the window subsystem of the body domain, and the bridge drive signal acquisition module is used to collect the bridge drive signal of the window subsystem; and / or, the body domain main acquisition circuit includes a pulse modulation signal acquisition module, which is used to communicate with the wiper subsystem of the body domain, and the pulse modulation signal acquisition module is used to collect the pulse modulation signal of the wiper subsystem.

[0007] In some embodiments, the vehicle body domain main acquisition circuit includes a first high-side and low-side signal acquisition module, which is used to communicate with the vehicle body domain's headlight subsystem and to collect high-side and low-side voltage signals of the headlight subsystem.

[0008] In some embodiments, the driving domain main processing circuit includes a first camera data processing module, which is used to communicate with the first camera subsystem of the driving domain, and the first camera data processing module is used to receive and pre-process data sent by the first camera subsystem; and / or, the driving domain main processing circuit includes a first Ethernet signal processing module, which is used to communicate with the lidar subsystem of the driving domain, and the first Ethernet signal processing module is used to receive and pre-process data sent by the lidar subsystem; and / or, the driving domain main processing circuit includes a controller area network signal processing module, which is used to communicate with the radar subsystem of the driving domain, and the controller area network signal processing module is used to receive and pre-process data sent by the radar subsystem.

[0009] In some embodiments, the cockpit domain main processing circuit includes a first video data processing module, which is used to communicate with the cockpit domain video subsystem and receive and pre-process data sent by the video subsystem.

[0010] In some embodiments, the main controller also includes a first communication module, the vehicle test system includes a slave controller, and the slave controller includes: a body domain slave acquisition circuit, the body domain slave acquisition circuit is used to communicate with the body domain of the vehicle, and the body domain slave acquisition circuit is used to collect the second body domain signal of the body domain; a cockpit domain slave processing circuit, the cockpit domain slave processing circuit is used to communicate with the cockpit domain of the vehicle, and the cockpit domain slave processing circuit is used to receive and process the second cockpit domain signal of the cockpit domain; a slave processing chip, respectively communicated with the body domain slave acquisition circuit and the cockpit domain main processing circuit, and the slave processing chip is used to process the second body domain signal and the first cockpit domain signal; a second communication module, respectively communicated with the slave processing chip and the first communication module, and the second communication module is used to receive the processed second body domain signal and the second cockpit domain signal sent by the slave processing chip, and transmit the processed second body domain signal and the second cockpit domain signal to the first communication module.

[0011] In some embodiments, the vehicle body domain slave acquisition circuit includes a second high-side and low-side signal acquisition module, which is used to communicate with the vehicle body domain lighting subsystem and to collect the high-side and low-side voltage signals of the lighting subsystem.

[0012] In some embodiments, the cockpit domain slave processing circuit includes a second video data processing module, which is used to communicate with the cockpit domain video subsystem and receive and pre-process data sent by the video subsystem.

[0013] In some embodiments, the cockpit domain slave processing circuit includes an audio signal processing module, which is used to communicate with the cockpit domain audio subsystem and receive and pre-process data sent by the audio subsystem; and / or, the cockpit domain slave processing circuit includes a second Ethernet signal processing module, which is used to communicate with the cockpit domain central gateway subsystem and receive and pre-process data from the central gateway subsystem. The cockpit domain slave processing circuit includes a second camera data processing module, which is used to communicate with the second camera subsystem in the cockpit domain and receive and pre-process data sent by the second camera subsystem.

[0014] In some embodiments, the vehicle testing system includes a host computer, the host computer includes a third communication module, the main controller includes a fourth communication module, the fourth communication module is communicatively connected to the main processing chip and the third communication module respectively, and the fourth communication module is used to transmit the processed first body domain signal, first driving domain signal, first cockpit domain signal emitted by the main processing chip and the processed second cockpit domain signal and second body domain signal emitted from the processing chip to the third communication module.

[0015] Compared with the prior art, the vehicle testing system provided by the present application includes a main controller, which includes a body domain main acquisition circuit, a driving domain main processing circuit, a cockpit domain main processing circuit and a main processing chip. The body domain main acquisition circuit is used to communicate with the body domain of the vehicle, and the body domain main acquisition circuit is used to collect the first body domain signal of the body domain; the driving domain main processing circuit is used to communicate with the driving domain of the vehicle, and the body domain main processing circuit is used to receive and pre-process the first driving domain signal of the driving domain; the cockpit domain main processing circuit is used to communicate with the cockpit domain of the vehicle, and the cockpit domain main processing circuit is used to receive and pre-process the first cockpit domain signal of the cockpit domain; the main processing chip is respectively communicated with the body domain main acquisition circuit, the driving domain main processing circuit and the cockpit domain main processing circuit, and the main processing chip is used to process the first body domain signal, the first driving domain signal and the first cockpit domain signal. Through the above-mentioned implementation mode, the vehicle testing system includes a main controller, which includes a body domain main acquisition circuit, a driving domain main processing circuit, a cockpit domain main processing circuit and a main processing chip. The body domain main acquisition circuit, the driving domain main processing circuit and the cockpit domain main processing circuit respectively collect and process the first body domain signal, the first driving domain signal and the first cockpit domain signal sent by the vehicle's body domain, driving domain and cockpit domain. The main processing chip performs final processing and analysis on the collected and processed first body domain signal, the first driving domain signal and the first cockpit domain signal, thereby improving the testing efficiency of the "three domains". BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a first structural diagram of a vehicle testing system according to an embodiment of the present application;

[0018] Figure 2 is a second structural diagram of a vehicle testing system according to an embodiment of the present application;

[0019] Figure 3 This is a third structural diagram of a vehicle testing system according to an embodiment of the present application.

[0020] Figure numbers: vehicle test system 10; main controller 100; body domain main acquisition circuit 110; bridge drive signal acquisition module 111; pulse modulation signal acquisition module 112; first high-side and low-side signal acquisition module 113; driving domain main processing circuit 120; first camera data processing module 121; first Ethernet signal processing module 122; controller area network signal processing module 123; cockpit domain main processing circuit 130; first video data processing module 131; main processing chip 140; first communication module 150; fourth communication module 160; slave controller 200; body domain slave acquisition circuit 210; second high-side and low-side signal acquisition module 211; cockpit domain slave processing circuit 220; second video data processing module 221; audio signal processing module 222; second camera data processing module 223; second Ethernet signal processing module 224; slave processing chip 230; second communication module 240; host computer 300; third communication module 310. DETAILED DESCRIPTION

[0021] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0023] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0024] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0026] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0027] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0028] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0029] As vehicles become increasingly intelligent and digital, the body, cockpit, and driving domains have gradually become core components of the electronic control systems of modern new energy vehicles. To ensure the high stability and reliability of controllers in these three domains even in complex environments, testing is typically required to collect, process, and analyze multiple signals across all three domains. Existing controller test systems typically target only a single domain, lacking a universal test system that can be applied to different vehicle models and simultaneously test controllers in the body, intelligent cockpit, and intelligent driving domains.

[0030] In order to solve the technical problems existing in the related technologies, this application provides a vehicle testing system. Figures 1 to 3 , Figure 1 This is a first structural diagram of a vehicle testing system according to an embodiment of the present application. Figure 2 This is a second structural diagram of a vehicle testing system according to an embodiment of the present application. Figure 3 This is a third structural diagram of a vehicle testing system according to an embodiment of the present application.

[0031] The vehicle testing system 10 includes a body domain main acquisition circuit 110, a driving domain main processing circuit 120, a cockpit domain main processing circuit 130 and a main processing chip 140. The body domain main acquisition circuit 110 is used to communicate with the body domain of the vehicle, and the body domain main acquisition circuit 110 is used to collect a first body domain signal of the body domain; the driving domain main processing circuit 120 is used to communicate with the driving domain of the vehicle, and the driving domain main processing circuit 120 is used to receive and pre-process the first driving domain signal of the driving domain; the cockpit domain main processing circuit 130 is used to communicate with the cockpit domain of the vehicle, and the cockpit domain main processing circuit 130 is used to receive and pre-process the first cockpit domain signal of the cockpit domain; the main processing chip 140 is respectively communicated with the body domain main acquisition circuit 110, the driving domain main processing circuit 120 and the cockpit domain main processing circuit 130, and the main processing chip 140 is used to process the first body domain signal, the first driving domain signal and the first cockpit domain signal.

[0032] The main controller 100 can control the operation of the body domain main acquisition circuit 110, the driving domain main processing circuit 120 and the cockpit domain main processing circuit 130, and test the first body domain signal of the vehicle's body domain, the first driving domain signal of the driving domain and the first cockpit domain signal of the cockpit domain. The body domain of the vehicle mainly includes the control of settings such as lights, windows and wipers. The driving domain mainly includes the control of equipment such as lidar, radar and cameras. The cockpit domain is used to provide users with an interactive interface and entertainment system, mainly including the audio of speakers, and the output of equipment such as cameras and displays. The equipment and quantity of the body domain, driving domain and cockpit domain are different for different models. Some models only need to collect, process and analyze the first body domain signal, the first driving domain signal and the first cockpit domain signal of the body domain.

[0033] The body domain main acquisition circuit 110 is controlled by the main controller 100 and can collect the first body domain signal of the vehicle's body domain. The body domain main acquisition circuit 110 sends the collected data to the main processing chip 140, and the main processing chip 140 processes and analyzes the received first body domain signal to determine whether the working status of each device in the body domain is normal.

[0034] The driving domain main processing circuit 120 is a circuit within the main controller 100 of the vehicle testing system 10 that tests various devices within the vehicle's driving domain. It is used to receive and preprocess a first driving domain signal for the driving domain. The first driving domain signal can be understood as data generated by the operation of various devices within the driving domain. Because the main processing chip 140 has a specific interface that differs from the interfaces of the various devices within the driving domain and the driving domain main processing circuit 120, the driving domain main processing circuit 120 must first collect data from various devices within the driving domain and preprocess the collected data to convert it into data that the main processing chip 140 can recognize and analyze. This allows the main processing chip 140 to process and analyze the converted data to determine whether the devices within the driving domain are operating normally.

[0035] The cockpit-domain main processing circuit 130, a circuit within the main controller 100 of the vehicle test system 10, is responsible for collecting and preprocessing the first cockpit-domain signal. This first cockpit-domain signal can be understood as data generated by the operating state of various devices within the cockpit domain. The cockpit-domain main processing circuit 130 must first collect data from various devices within the cockpit domain and then preprocess and convert the collected raw data. Only then can the main processing chip 140 process and analyze the converted data to determine whether each device within the cockpit domain is operating normally.

[0036] Through the above embodiment, the vehicle testing system 10 can simultaneously test the first body domain signal of the vehicle's body domain, the first driving domain signal of the driving domain, and the first cockpit domain signal of the cockpit domain, thereby improving the testing efficiency of the vehicle's body domain, driving domain, and cockpit domain.

[0037] In some embodiments, the body-domain master acquisition circuit 110 includes a bridge drive signal acquisition module 111, which is configured to communicate with the window subsystem in the body domain and collect bridge drive signals from the window subsystem. Alternatively, the body-domain master acquisition circuit 110 includes a pulse modulation signal acquisition module 112, which is configured to communicate with the wiper subsystem in the body domain and collect pulse modulation signals from the wiper subsystem. The body domain includes both the window subsystem and the wiper subsystem, and the devices and number of devices used in these subsystems are relatively fixed. Therefore, the main controller 100 can prioritize testing the window and wiper subsystems. The body-domain master acquisition system includes the bridge drive signal acquisition module 111 and the pulse modulation signal acquisition module 112. The bridge drive signal acquisition module 111 collects bridge drive signals from the window subsystem to evaluate the response of the motor that controls the window glass lifting and lowering, thereby determining whether the window subsystem is functioning properly. The pulse modulation signal acquisition module 112 is used to collect pulse width modulation signals from the wiper subsystem, test parameters such as the wiper's operating frequency and intensity, and evaluate whether the wiper subsystem is functioning properly. Of course, the pulse modulation signal acquisition module 112 is not limited to collecting data from the wiper subsystem; it can also collect data from devices with pulse modulation signals, such as fans and electric seats. The bridge drive signal acquisition module 111 may include an analog-to-digital converter (ADC), which may include multiple bridge drive voltage signal interfaces to test bridge drive signals from different devices. The pulse modulation signal acquisition module 112 may include a pulse width modulation input capturer, which may include multiple pulse width modulation digital signal interfaces to test pulse modulation signals from multiple devices.

[0038] In some embodiments, the vehicle body domain main acquisition circuit 110 includes a first high-side and low-side signal acquisition module 113. This first high-side and low-side signal acquisition module 113 is configured to communicate with the vehicle body domain's lighting subsystem and collect high-side and low-side voltage signals from the lighting subsystem. Because the vehicle body domain also includes the lighting subsystem, which includes various lamps such as headlights, turn signals, brake lights, and interior lighting, and the types and number of LEDs in each lamp may vary between vehicle models, the vehicle body domain main acquisition circuit 110 includes the first high-side and low-side signal acquisition module 113. This module is configured to collect high-side and low-side signals from the lamps in the lighting subsystem to ensure that the lighting system can properly turn on, off, or adjust brightness. This module can meet the lighting subsystem testing requirements for lower-spec vehicles, as these vehicles have fewer types, fewer lamps, and fewer functions. Therefore, only the first high-side and low-side signal acquisition module 113 is required to meet the lighting subsystem testing requirements. The first high-side and low-side signal acquisition module 113 may include an analog-to-digital converter (ADC), which may include multiple high-side and low-side voltage signal interfaces to test multiple lighting subsystems. Thus, the vehicle test system 10 can test the lighting, window, and wiper subsystems within the vehicle body domain, meeting the vehicle body domain testing requirements of most vehicles.

[0039] In some embodiments, the driving domain main processing circuit 120 includes a first camera data processing module 121, which is used to communicate with the first camera subsystem of the driving domain, and the first camera data processing module 121 is used to receive and pre-process data sent by the first camera subsystem; and / or, the driving domain main processing circuit 120 includes a first Ethernet signal processing module 122, which is used to communicate with the lidar subsystem of the driving domain, and the first Ethernet signal processing module 122 is used to receive and pre-process data sent by the lidar subsystem; and / or, the driving domain main processing circuit 120 includes a controller area network signal processing module 123, which is used to communicate with the radar subsystem of the driving domain, and the controller area network signal processing module 123 is used to receive and pre-process data sent by the radar subsystem.

[0040] The vehicle's driving domain includes a first camera subsystem, a lidar subsystem, and a radar subsystem, and the number of devices in these three subsystems is essentially fixed. Currently, vehicles with higher-end driving domain configurations all have intelligent driving capabilities. Most vehicles with intelligent driving capabilities have a single lidar, five millimeter-wave radars, and seven cameras in their driving domains. Therefore, the driving domain main processing circuit 120 includes a first camera data processing module 121, a first Ethernet signal processing module 122, and a controller area network signal processing module 123. The first camera data processing module 121 is responsible for receiving and pre-processing data from the first camera subsystem to ensure that the camera's output quality meets specified parameter settings. The first Ethernet signal processing module 122 is responsible for receiving and pre-processing data from the lidar subsystem, converting the data before processing and analysis by the main processing chip 140. Because the lidar system in the driving domain includes multiple sensor types and involves large amounts of data transmission, it requires support from high-speed communication networks such as Gigabit Ethernet and 100M Ethernet. Therefore, the first Ethernet signal processing module 122 is required to collect and preprocess data from the LiDAR subsystem and test the Ethernet communication network's bandwidth, latency, and data integrity. For example, it tests data such as the packet loss rate and bit error rate of transmitted data. The controller area network signal processing module 123 is used to communicate with the driving domain radar subsystem and receive and preprocess data sent by the radar subsystem. As a result, the driving domain main processing circuit 120 can meet the driving domain testing requirements of most vehicle models.

[0041] The first camera data processing module 121 may include a camera deserializer to collect and preprocess data from the first camera subsystem, and the camera deserializer may include multiple camera signal interfaces. The first Ethernet signal processing module 122 may include an Ethernet switch to collect and preprocess data from the lidar subsystem. The Ethernet switch may include multiple 100M Ethernet interfaces and multiple 100M Ethernet interfaces, allowing for simultaneous testing of multiple devices with varying data volumes to improve testing efficiency. The controller area network signal processing module 123 may include a transceiver to collect and preprocess data from the radar subsystem, and the transceiver may have multiple interfaces to facilitate testing of multiple devices.

[0042] In some embodiments, the cockpit domain main processing circuit 130 includes a first video data processing module 131. The first video data processing module 131 is configured to communicate with the cockpit domain's video subsystem and receive and pre-process data sent by the video subsystem. The vehicle's cockpit domain itself has multiple display screens to enable human-computer interaction, and the number and functionality of these displays vary depending on the vehicle's configuration. The first video data processing circuit in the cockpit domain main processing circuit 130 collects and pre-processes data from the vehicle's cockpit domain's video subsystem. This first video data processing circuit can meet the cockpit domain testing requirements of most vehicle models. After the first video data processing circuit converts the video subsystem data, the main processing chip 140 processes and analyzes it to test the video subsystem's output quality. The first video data processing module 131 may include a display serializer to collect and pre-process data from the video subsystem. The display serializer may have multiple display signal interfaces.

[0043] Therefore, the vehicle testing system 10 has a bridge drive signal acquisition module 111, a pulse modulation signal acquisition module 112, a first high-side and low-side signal acquisition module 113, a first camera data processing module 121, a first Ethernet signal processing module 122, a controller area network signal processing module 123 and a first video data processing module 131, so as to meet the testing requirements of the vehicle's body domain, driving domain and cockpit domain, and at the same time, the three domains of the vehicle "body domain, driving domain and cockpit domain" can be tested at the same time, thereby improving the efficiency of vehicle testing.

[0044] In some embodiments, the main controller 100 further includes a first communication module 150, and the vehicle test system 10 includes a slave controller 200, which includes: a body domain slave acquisition circuit 210, the body domain slave acquisition circuit 210 is used to communicate with the body domain of the vehicle, and the body domain slave acquisition circuit 210 is used to collect the second body domain signal of the body domain; a cockpit domain slave processing circuit 220, the cockpit domain slave processing circuit 220 is used to communicate with the cockpit domain of the vehicle, and the cockpit domain slave processing circuit 220 is used to receive and process the second cockpit domain signal of the cockpit domain The main controller 100 and the slave controller 200 can operate simultaneously to test the vehicle's body domain, driving domain, and cockpit domains simultaneously, thereby improving test efficiency.

[0045] The size and interface of the main controller 100 are limited, but the vehicle may also include a second body domain signal and a second cockpit domain signal that need to be tested. Therefore, the vehicle test system 10 is also provided with a slave controller 200. The slave controller 200 may include a body domain slave acquisition circuit 210 and a cockpit domain slave processing circuit 220. When the body domain master acquisition circuit 110 and the cockpit domain master processing circuit 130 of the main controller 100 cannot meet the vehicle's test requirements, the slave controller 200 can test other untested devices in the body domain and cockpit domain to meet the vehicle's test requirements. The body domain slave acquisition circuit 210 and the cockpit domain slave processing circuit 220 are used to collect and process the vehicle's second body domain signal and second cockpit domain signal, respectively. The main controller 100 also includes a first communication module 150, and the slave controller 200 also includes a slave processing chip 230 and a second communication module 240. The second communication module 240 is connected to the slave processing chip 230 and the first communication module 150 respectively. The slave processing chip 230 is used to receive and process and analyze the data transmitted from the body domain slave acquisition circuit 210 and the cockpit domain slave processing circuit 220. Then, the slave controller 200 can send the data and results processed by the slave processing chip 230 to the first communication module 150, thereby improving the efficiency of the test.

[0046] Of course, the slave controller 200 may also include a driving domain slave processing circuit, which may enable the vehicle test system 10 to test more devices in the driving domain, so as to freely expand the vehicle test system 10 and meet the testing requirements of more vehicle models.

[0047] In some embodiments, the vehicle-domain slave acquisition circuit 210 includes a second high-side and low-side signal acquisition module 211. This second high-side and low-side signal acquisition module 211 is configured to communicate with the vehicle-domain lighting subsystem and collect high-side and low-side voltage signals from the lighting subsystem. If the vehicle's lighting subsystem includes a large number of different types of lights and the master controller 100 is unable to test all of them, the slave controller 200's second high-side and low-side signal acquisition module 211 can test the remaining components of the lighting subsystem, thereby satisfying the vehicle's lighting subsystem testing requirements.

[0048] In some embodiments, the cockpit domain slave processing circuit 220 includes a second video data processing module 221. This second video data processing module 221 is configured to communicate with the cockpit domain's video subsystem and receive and pre-process data sent by the video subsystem. Because the cockpit domain requires the acquisition and pre-processing of numerous video subsystem signals, which can be understood as the large number and variety of display screens within the cockpit domain, the master controller 100 cannot simultaneously test all devices in the video subsystem. Therefore, the slave controller 200 includes a second video data processing module 221 to test the remaining devices in the video subsystem. This expansion of the second video data processing module 221 meets the testing requirements for video subsystems with more devices.

[0049] In some embodiments, the cockpit domain slave processing circuit 220 includes an audio signal processing module, which is configured to communicate with the cockpit domain audio subsystem and receive and pre-process data sent by the audio subsystem. Alternatively, the cockpit domain slave processing circuit 220 includes a second Ethernet signal processing module 224, which is configured to communicate with the cockpit domain central gateway subsystem and receive and pre-process data from the central gateway subsystem. Alternatively, the cockpit domain slave processing circuit 220 includes a second camera data processing module, which is configured to communicate with the cockpit domain second camera subsystem and receive and pre-process data sent by the second camera subsystem.

[0050] The cockpit domain slave processing circuit 220 may also include an audio signal processing module, a second Ethernet signal processing module 224 and a second camera data processing module to test the audio subsystem, central gateway subsystem and second camera subsystem of the cockpit domain. The audio signal processing module may include an audio processor, and the audio processor may include multiple audio signal interfaces to connect to the audio subsystem of the cockpit domain, and then test the audio subsystem. During actual use of the vehicle's driving domain and cockpit domain, the driving domain and the cockpit domain interact with each other. After the driving domain sends data to the cockpit domain, the cockpit domain makes a decision. During the testing process of the vehicle test system 10, it is only necessary to send data to the central gateway subsystem through the second Ethernet data processing module to test the packet loss rate and bit error rate of the central gateway subsystem of the cockpit domain. The second camera data processing module may include a camera deserializer, and the camera deserializer may include multiple camera signal interfaces to test the second camera subsystem.

[0051] The controller 200 can also add acquisition modules of other subsystems such as the window subsystem and wiper subsystem in the vehicle body domain, or add processing modules of other subsystems such as the video and audio subsystem in the cockpit domain, the second camera subsystem, and the central gateway subsystem according to needs, and is not limited to the subsystems in the embodiments of the present application.

[0052] Thus, vehicle testing system 10 can test multiple different subsystems across the vehicle's body, driver, and cabin domains. The master controller 100 first tests the driver domain, where subsystems and equipment are relatively fixed, and some subsystems in the body and cabin domains. The number of slave controllers 200 is then increased based on the body and cabin domains to be tested. This simplifies the complexity of vehicle testing system 10, allowing the test system to be built using a minimal number of tooling test controllers, acquisition modules, and processing modules.

[0053] Of course, the vehicle test system 10 can also include a second or more slave controllers 200, and different acquisition modules and processing modules can be added according to the subsystems that need to be tested in the vehicle's body domain, driving domain and cockpit domain, so as to meet the needs of more vehicles for testing, so that the vehicle test system 10 can be freely assembled and expanded according to different test requirements to adapt to the signal acquisition and testing of various controllers in different control domains (body domain, cockpit domain, driving domain).

[0054] In some embodiments, the vehicle testing system 10 includes a host computer 300, which includes a third communication module 310. The main controller 100 includes a fourth communication module 160, which is communicatively connected to the main processing chip 140 and the third communication module 310, respectively. The fourth communication module 160 is configured to transmit the processed first vehicle body domain signal, first driving domain signal, and first cockpit domain signal from the main processing chip 140, as well as the processed second cockpit domain signal and second vehicle domain signal from the slave processing chip 230, to the third communication module 310. The fourth communication module 160 of the main controller 100 transmits the test data from the main controller 100 and the slave controller 200 to the third communication module 310 of the host computer 300, which ultimately stores the data. The host computer 300 is configured to store the data processed by the main processing chip 140 and the slave processing chip 230, generate a log of the test operations, and display the data on the host computer 300 display screen for engineers to assess the test results.

[0055] To sum up, the vehicle testing system 10 can simultaneously test the first body domain signal of the vehicle's body domain, the first driving domain signal of the driving domain, and the first cockpit domain signal of the cockpit domain, thereby improving the testing efficiency of the vehicle's body domain, driving domain, and cockpit domain.

[0056] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A vehicle testing system, characterized in that: The vehicle testing system includes a main controller, which includes: A body domain master acquisition circuit, the body domain master acquisition circuit being configured to be communicatively connected to the body domain of the vehicle, and configured to acquire a first body domain signal of the body domain; a driving domain main processing circuit, the driving domain main processing circuit being configured to be communicatively connected to the driving domain of the vehicle, and the driving domain main processing circuit being configured to receive and pre-process a first driving domain signal of the driving domain; a cockpit domain main processing circuit, the cockpit domain main processing circuit being configured to be communicatively connected to a cockpit domain of a vehicle, the cockpit domain main processing circuit being configured to receive and pre-process a first cockpit domain signal of the cockpit domain; A main processing chip is communicatively connected to the body domain main acquisition circuit, the driving domain main processing circuit and the cockpit domain main processing circuit respectively, and the main processing chip is used to process the first body domain signal, the first driving domain signal and the first cockpit domain signal.

2. The vehicle testing system according to claim 1, characterized in that: The vehicle body domain main acquisition circuit includes a bridge drive signal acquisition module, which is used to communicate with the vehicle window subsystem of the vehicle body domain and to acquire the bridge drive signal of the vehicle window subsystem; And / or, the vehicle body domain main acquisition circuit includes a pulse modulation signal acquisition module, which is used to communicate with the wiper subsystem of the vehicle body domain and to acquire the pulse modulation signal of the wiper subsystem.

3. The vehicle testing system according to claim 2, characterized in that: The vehicle body domain main acquisition circuit also includes a first high-side and low-side signal acquisition module, which is used to communicate with the vehicle body domain lighting subsystem and to collect high-side and low-side voltage signals of the lighting subsystem.

4. The vehicle testing system according to claim 1, characterized in that: The driving domain main processing circuit includes a first camera data processing module, the first camera data processing module is used to communicate with the first camera subsystem of the driving domain, and the first camera data processing module is used to receive and pre-process data sent by the first camera subsystem; And / or, the driving domain main processing circuit includes a first Ethernet signal processing module, the first Ethernet signal processing module is used to communicate with the lidar subsystem of the driving domain, and the first Ethernet signal processing module is used to receive and pre-process data sent by the lidar subsystem; And / or, the driving domain main processing circuit includes a controller area network signal processing module, which is used to communicate with the radar subsystem of the driving domain, and the controller area network signal processing module is used to receive and pre-process data sent by the radar subsystem.

5. The vehicle testing system according to claim 1, characterized in that: The cockpit domain main processing circuit includes a first video data processing module, which is used to communicate with the cockpit domain video subsystem and receive and pre-process data sent by the video subsystem.

6. The vehicle testing system according to claim 1, characterized in that: The master controller further includes a first communication module, and the vehicle testing system includes a slave controller, wherein the slave controller includes: a body domain slave acquisition circuit, the body domain slave acquisition circuit being configured to be communicatively connected to the body domain of the vehicle, and the body domain slave acquisition circuit being configured to acquire a second body domain signal of the body domain; a cockpit domain slave processing circuit, the cockpit domain slave processing circuit being configured to be communicatively connected to a cockpit domain of the vehicle, and the cockpit domain slave processing circuit being configured to receive and process a second cockpit domain signal of the cockpit domain; a slave processing chip, communicatively connected to the body-domain slave acquisition circuit and the cockpit-domain master processing circuit, respectively, and configured to process the second body-domain signal and the second cockpit-domain signal; a second communication module, which is communicatively connected to the slave processing chip and the first communication module respectively, and is used to receive the processed second body domain signal and the second cockpit domain signal emitted by the slave processing chip, and transmit the processed second body domain signal and the second cockpit domain signal to the first communication module.

7. The vehicle testing system according to claim 6, characterized in that: The slave acquisition circuit includes a second high-side and low-side signal acquisition module, which is used to communicate with the headlight subsystem in the vehicle body domain and to acquire high-side and low-side voltage signals of the headlight subsystem.

8. The vehicle testing system according to claim 6, characterized in that: The cockpit domain slave processing circuit includes a second video data processing module, which is used to communicate with the cockpit domain video subsystem and receive and pre-process data sent by the video subsystem.

9. The vehicle testing system according to claim 6, characterized in that: The cockpit domain slave processing circuit includes an audio signal processing module, the audio signal processing module is used to communicate with the cockpit domain audio subsystem, and the audio signal processing module is used to receive and pre-process data sent by the audio subsystem; And / or, the cockpit domain slave processing circuit includes a second Ethernet signal processing module, the second Ethernet signal processing module is used to communicate with the central gateway subsystem of the cockpit domain, and the second Ethernet signal processing module is used to receive and pre-process data from the central gateway subsystem; And / or, the cockpit domain slave processing circuit includes a second camera data processing module, which is used to communicate with the second camera subsystem of the cockpit domain, and the second camera data processing module is used to receive and pre-process data sent by the second camera subsystem.

10. The vehicle testing system according to claim 6, characterized in that: The vehicle testing system includes a host computer, the host computer includes a third communication module, the main controller includes a fourth communication module, the fourth communication module is communicatively connected to the main processing chip and the third communication module respectively, and the fourth communication module is used to transmit the processed first body domain signal, the first driving domain signal, the first cockpit domain signal emitted by the main processing chip and the processed second cockpit domain signal and the second body domain signal emitted by the slave processing chip to the third communication module.

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