A TBOX vehicle-mounted Ethernet performance test method and device for dynamic working conditions

Abstract

This invention belongs to the field of vehicle network testing technology and discloses a method and apparatus for testing the performance of TBOX vehicle Ethernet under dynamic operating conditions. The method includes the following steps: constructing a TBOX vehicle Ethernet test network; generating dynamic test conditions based on vehicle operating status, sensor input signals, and service triggering conditions; performing performance tests on the TBOX vehicle Ethernet under the dynamic test conditions to obtain performance test data; extracting performance evaluation indicators from the performance test data; and analyzing the performance evaluation indicators to obtain the performance test results of the TBOX vehicle Ethernet under dynamic operating conditions. This invention combines dynamic operating condition generation, test network construction, performance data acquisition, and performance result analysis, enabling TBOX vehicle Ethernet performance testing to move beyond static test conditions and helping to reflect the communication performance changes of the TBOX under different service triggering conditions.

Description

Technical Field

[0001] This invention belongs to the field of vehicle network testing technology, specifically relating to a TBOX vehicle Ethernet performance testing method and device for dynamic operating conditions. Background Technology

[0002] With the continuous development of the electronic and electrical architecture of intelligent connected vehicles, automotive Ethernet, due to its high transmission rate, large bandwidth, and strong scalability, is gradually being applied to vehicle communication networks. The TBOX (Telematics Toll Collection Box), as a crucial communication terminal for information interaction between the vehicle and external platforms, needs to transmit data with gateways, domain controllers, and other vehicle nodes via automotive Ethernet. Its communication performance affects the effectiveness of functions such as uploading vehicle status information, remote control, and transmitting alarm information. Currently, tests on automotive Ethernet performance are mostly conducted under static conditions, typically using fixed loads, fixed messages, or single controller tests to obtain performance results such as latency, throughput, and packet loss rate. These methods fail to reflect the impact of changes in operating conditions, service triggering, and multi-node collaborative communication during actual vehicle operation on the TBOX's automotive Ethernet performance. Summary of the Invention

[0003] In view of the current situation where existing technologies test a single controller or fixed link under static conditions, it is difficult to reflect the performance changes of TBOX vehicle Ethernet during vehicle dynamic operation. The purpose of this invention is to provide a TBOX vehicle Ethernet performance testing method and device for dynamic operating conditions, which combines vehicle dynamic operating conditions to construct a test network and collect performance data, thereby improving the applicability of test results to actual vehicle operating scenarios.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows: Firstly, this invention provides a TBOX vehicle Ethernet performance testing method for dynamic operating conditions, including the following: (1) Construct a TBOX vehicle-mounted Ethernet test network; (2) Generate dynamic test conditions based on vehicle operating status, sensor input signals and service triggering conditions; (3) The TBOX vehicle Ethernet was tested under the dynamic test conditions to obtain performance test data; (4) Extract performance evaluation indicators based on the performance test data; (5) The performance test results of TBOX vehicle Ethernet under dynamic working conditions are obtained by analyzing the performance evaluation indexes.

[0005] As a preferred technical solution of the present invention, the specific content of content (1) includes, Based on the communication relationship of the TBOX in the vehicle network, a connection relationship is established between the TBOX, the gateway controller, the network test equipment, and the simulation node. The TBOX and the gateway controller are connected to the test network as physical nodes. The simulation node is used to simulate the communication behavior of relevant controllers or sensor nodes during vehicle operation. The network test equipment is used to collect performance test data of the TBOX's vehicle Ethernet link, enabling the TBOX to communicate with relevant nodes via vehicle Ethernet in the test network.

[0006] In some optional instances, the simulation nodes are co-simulated using MATLAB-CANoe, and the network testing equipment is a Spirent C50 network analyzer.

[0007] As a preferred technical solution of the present invention, in content (2), The dynamic test conditions include one or more of the following: lane departure, driver fatigue, driver distraction, forward collision, and remote control. Content (2) also includes driving the relevant nodes in the TBOX vehicle Ethernet test network to generate corresponding communication interactions under the dynamic test conditions.

[0008] As a preferred technical solution of the present invention, in content (3), The performance test includes collecting performance test data during the TBOX vehicle Ethernet communication process through network testing equipment under different dynamic test conditions. The performance test data includes one or more of the following: end-to-end latency, latency jitter, throughput, packet loss rate, back-to-back burst capability, and application layer timeout rate.

[0009] As a preferred technical solution of the present invention, the specific content of content (4) includes, Based on the collected performance test data, performance evaluation indicators were extracted to characterize the real-time performance, load capacity, and reliability of the TBOX automotive Ethernet; among them... Real-time performance metrics include end-to-end latency and latency jitter; Capacity metrics include throughput and back-to-back burst capacity; Reliability metrics include packet loss rate and application layer timeout rate.

[0010] As a preferred technical solution of the present invention, the specific content of content (5) includes, The performance evaluation indicators are calculated and analyzed to obtain the performance test results of TBOX vehicle Ethernet under different dynamic test conditions, which are used to reflect the communication performance differences of TBOX vehicle Ethernet under different service triggering conditions. The evaluation model adopts the grey relational analysis method, and the evaluation weight uses the AHP-CRITIC subjective and objective combined weighting method.

[0011] Secondly, the present invention provides a testing apparatus for implementing the above-mentioned TBOX vehicle Ethernet performance testing method for dynamic operating conditions, comprising, The test network building module is used to build the TBOX in-vehicle Ethernet test network; The dynamic operating condition generation module is used to generate dynamic test conditions based on vehicle operating status, sensor input signals and service triggering conditions. The performance testing module is used to collect TBOX vehicle Ethernet performance test data; The indicator extraction module is used to extract performance evaluation indicators based on the performance test data; and The results analysis module is used to obtain the performance test results of TBOX vehicle Ethernet under dynamic operating conditions based on the performance evaluation indicators.

[0012] As a preferred technical solution of the present invention, the test network construction module includes a physical node access unit and a simulation node configuration unit; The physical node access unit is used to connect to the TBOX, gateway controller, and network testing equipment. The simulation node configuration unit is used to configure the communication behavior of relevant controllers or sensor nodes during vehicle operation.

[0013] In some optional instances, the simulation nodes are co-simulated using MATLAB-CANoe, and the network testing equipment is a Spirent C50 network analyzer.

[0014] As a preferred technical solution of the present invention, the dynamic working condition generation module includes a working condition setting unit and a service triggering unit; The operating condition setting unit is used to set one or more dynamic test conditions among lane departure, driver fatigue, driver distraction, forward collision, and remote control. The service triggering unit is used to generate vehicle status signals, environmental perception signals, or alarm triggering signals under corresponding dynamic test conditions.

[0015] As a preferred technical solution of the present invention, the performance testing module includes a test parameter setting unit and a data acquisition unit; The test parameter setting unit is used to set the test load and message length. The data acquisition unit is used to collect end-to-end latency, latency jitter, throughput, packet loss rate, back-to-back burst capability, or application layer timeout rate during the TBOX vehicle Ethernet communication process.

[0016] The beneficial effects of this invention are: by combining vehicle dynamic operating conditions, service triggering process and TBOX vehicle Ethernet performance testing process, the test conditions are closer to the communication scenarios in actual vehicle operation. By constructing a test network that includes physical nodes and simulated nodes, the communication relationship between TBOX, gateway controller and related simulated nodes can be simulated without completely relying on the real vehicle environment, reducing the cost of building the test platform and improving the flexibility and repeatability of the test process. By collecting performance test data under dynamic conditions such as lane departure, driver fatigue, driver distraction, forward collision, and remote control, the communication performance changes of TBOX vehicle Ethernet under different service triggering conditions can be obtained. By extracting performance evaluation indicators such as real-time performance, load capacity, and reliability, it is possible to avoid relying on a single indicator to judge communication performance, making the test results more comprehensive. This method helps to identify potential problems in TBOX vehicle Ethernet under dynamic operating conditions, such as increased latency, increased packet loss, insufficient burst transmission capacity, or application layer timeouts, providing a reference for TBOX vehicle Ethernet performance optimization and vehicle network testing. Attached Figure Description

[0017] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings; Figure 1 This is a flowchart of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the modules in Embodiment 2 of the present invention. Detailed Implementation

[0018] The technical solutions of the present invention will be described in detail below with reference to specific embodiments and accompanying drawings. The embodiments described herein are specific implementations of the present invention, used to illustrate the concept of the present invention; these descriptions are explanatory and exemplary, and should not be construed as limiting the implementation methods or the scope of protection of the present invention. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein. Example 1

[0019] like Figure 1 As shown, this embodiment provides a TBOX vehicle Ethernet performance testing method for dynamic operating conditions, including the following: Construct a TBOX in-vehicle Ethernet test network. The test network includes TBOX, gateway controller, network test equipment, and simulation nodes. TBOX and gateway controller are connected to the test network as physical nodes. Simulation nodes are used to simulate the communication behavior of relevant controllers or sensor nodes during vehicle operation. Network test equipment is used to collect performance test data during the TBOX in-vehicle Ethernet communication process. By constructing a test network that includes physical nodes and simulation nodes, the communication relationship of TBOX in the vehicle network can be simulated without relying on the actual vehicle environment. Dynamic test conditions are generated based on vehicle operating status, sensor input signals, and service triggering conditions. These conditions include one or more of the following: lane departure, driver fatigue, driver distraction, forward collision, and remote control. The remote control condition incorporates both CAN and in-vehicle Ethernet. Under dynamic test conditions, simulation nodes generate corresponding vehicle status signals, environmental perception signals, or alarm trigger signals, which communicate with the TBOX via the gateway controller. By generating dynamic test conditions, the test network can generate communication interactions related to the vehicle's operation, avoiding testing only under static conditions. Performance testing was conducted on the TBOX vehicle Ethernet. Under dynamic testing conditions, different test loads and packet lengths were set, and the relevant vehicle Ethernet links of the TBOX were tested through network testing equipment to obtain performance test data. The performance test data included one or more of the following: end-to-end latency, latency jitter, throughput, packet loss rate, back-to-back burst capability, and application layer timeout rate. By collecting multiple types of performance test data, the communication status of the TBOX vehicle Ethernet under dynamic conditions can be reflected from different perspectives. Performance evaluation metrics for TBOX vehicle Ethernet were extracted based on the collected performance test data. These metrics include real-time metrics, carrying capacity metrics, and reliability metrics. Real-time metrics reflect the response speed of TBOX vehicle Ethernet communication, carrying capacity metrics reflect the data transmission capability of TBOX vehicle Ethernet, and reliability metrics reflect the stability of TBOX vehicle Ethernet communication. By extracting metrics from the test data, the performance of TBOX vehicle Ethernet can be judged without relying solely on a single test data point. Real-time metrics include end-to-end latency and latency jitter, carrying capacity metrics include throughput and back-to-back burst capability, and reliability metrics include packet loss rate and application layer timeout rate. Based on the performance evaluation indicators, the performance test results are obtained. The performance evaluation indicators under different dynamic operating conditions are calculated and compared to obtain the performance test results of TBOX vehicle Ethernet under different dynamic operating conditions. The performance test results are used to reflect the communication performance differences of TBOX vehicle Ethernet under different service triggering conditions and can be used to evaluate the performance of TBOX vehicle Ethernet under different operating conditions. When calculating and comparing, a subjective and objective weighting method is combined, and the AHP method and CRITIC method are combined to determine the weight of the indicators. A comprehensive evaluation model based on grey relational analysis is constructed, which can quantitatively and comprehensively evaluate the performance of TBOX vehicle Ethernet.

[0020] This embodiment combines dynamic operating condition generation, test network construction, performance data collection, and performance result analysis, so that the TBOX vehicle Ethernet performance test is no longer limited to static test conditions, and helps to reflect the communication performance changes of TBOX under different service triggering conditions. Example 2

[0021] like Figure 2 As shown, this embodiment provides a testing device, including a test network construction module, a dynamic operating condition generation module, a performance testing module, an indicator extraction module, and a result analysis module; The test network building module is used to build the TBOX in-vehicle Ethernet test network; The dynamic operating condition generation module is used to generate dynamic test conditions based on vehicle operating status, sensor input signals and service triggering conditions. The performance testing module is used to collect TBOX vehicle Ethernet performance test data; The metrics extraction module is used to extract performance evaluation metrics from performance test data. The results analysis module is used to obtain the performance test results of TBOX vehicle Ethernet under dynamic operating conditions based on performance evaluation indicators. The test network construction module includes a physical node access unit and a simulation node configuration unit. The physical node access unit is used to connect to the TBOX, gateway controller and network test equipment, and the simulation node configuration unit is used to configure the communication behavior of relevant controller or sensor nodes during vehicle operation. The dynamic operating condition generation module includes an operating condition setting unit and a service triggering unit. The operating condition setting unit is used to set one or more dynamic test operating conditions among lane departure, driver fatigue, driver distraction, forward collision and remote control. The service triggering unit is used to generate vehicle status signals, environmental perception signals or alarm triggering signals under the corresponding dynamic test operating conditions. The performance testing module includes a test parameter setting unit and a data acquisition unit. The test parameter setting unit is used to set the test load and message length, while the data acquisition unit is used to collect end-to-end latency, latency jitter, throughput, packet loss rate, back-to-back burst capability, or application layer timeout rate during the TBOX vehicle Ethernet communication process.

[0022] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A method for testing the performance of TBOX in-vehicle Ethernet under dynamic operating conditions, characterized in that: Includes the following: Constructing a TBOX in-vehicle Ethernet test network; Dynamic test conditions are generated based on vehicle operating status, sensor input signals, and service triggering conditions. The performance of the TBOX vehicle Ethernet was tested under the dynamic test conditions, and the performance test data was obtained. Extract performance evaluation metrics based on the performance test data; The performance test results of TBOX vehicle Ethernet under dynamic operating conditions were obtained based on the performance evaluation indicators.

2. The TBOX vehicle Ethernet performance testing method for dynamic operating conditions according to claim 1, characterized in that: The specific content of content (1) includes, Based on the communication relationship of the TBOX in the vehicle network, a connection relationship is established between the TBOX, the gateway controller, the network test equipment, and the simulation node. The TBOX and the gateway controller are connected to the test network as physical nodes. The simulation node is used to simulate the communication behavior of relevant controllers or sensor nodes during vehicle operation. The network test equipment is used to collect performance test data of the TBOX's vehicle Ethernet link, enabling the TBOX to communicate with relevant nodes via vehicle Ethernet in the test network.

3. The TBOX vehicle Ethernet performance testing method for dynamic operating conditions according to claim 2, characterized in that: In content (2), The dynamic test conditions include one or more of the following: lane departure, driver fatigue, driver distraction, forward collision, and remote control. Content (2) also includes driving the relevant nodes in the TBOX vehicle Ethernet test network to generate corresponding communication interactions under the dynamic test conditions.

4. The TBOX vehicle Ethernet performance testing method for dynamic operating conditions according to claim 3, characterized in that: In content (3), The performance test includes collecting performance test data during the TBOX vehicle Ethernet communication process through network testing equipment under different dynamic test conditions. The performance test data includes one or more of the following: end-to-end latency, latency jitter, throughput, packet loss rate, back-to-back burst capability, and application layer timeout rate.

5. The TBOX vehicle Ethernet performance testing method for dynamic operating conditions according to claim 4, characterized in that: The specific content of content (4) includes, Based on the collected performance test data, performance evaluation indicators were extracted to characterize the real-time performance, load capacity, and reliability of the TBOX automotive Ethernet; among them... Real-time performance metrics include end-to-end latency and latency jitter; Capacity metrics include throughput and back-to-back burst capacity; Reliability metrics include packet loss rate and application layer timeout rate.

6. The TBOX vehicle Ethernet performance testing method for dynamic operating conditions according to claim 5, characterized in that: The specific content of content (5) includes, The performance evaluation indicators are calculated and analyzed to obtain the performance test results of TBOX vehicle Ethernet under different dynamic test conditions, which are used to reflect the communication performance differences of TBOX vehicle Ethernet under different service triggering conditions.

7. A testing apparatus for implementing the TBOX vehicle Ethernet performance testing method for dynamic operating conditions as described in any one of claims 1 to 6, characterized in that: include, The test network building module is used to build the TBOX in-vehicle Ethernet test network; The dynamic operating condition generation module is used to generate dynamic test conditions based on vehicle operating status, sensor input signals and service triggering conditions. The performance testing module is used to collect TBOX vehicle Ethernet performance test data; The indicator extraction module is used to extract performance evaluation indicators based on the performance test data; as well as The results analysis module is used to obtain the performance test results of TBOX vehicle Ethernet under dynamic operating conditions based on the performance evaluation indicators.

8. The testing apparatus according to claim 7, characterized in that: The test network construction module includes a physical node access unit and a simulation node configuration unit; The physical node access unit is used to connect to the TBOX, gateway controller, and network testing equipment. The simulation node configuration unit is used to configure the communication behavior of relevant controllers or sensor nodes during vehicle operation.

9. A testing device according to claim 8, characterized in that: The dynamic operating condition generation module includes an operating condition setting unit and a service triggering unit; The operating condition setting unit is used to set one or more dynamic test conditions among lane departure, driver fatigue, driver distraction, forward collision, and remote control. The service triggering unit is used to generate vehicle status signals, environmental perception signals, or alarm triggering signals under corresponding dynamic test conditions.

10. A testing device according to claim 9, characterized in that: The performance testing module includes a test parameter setting unit and a data acquisition unit; The test parameter setting unit is used to set the test load and message length. The data acquisition unit is used to collect end-to-end latency, latency jitter, throughput, packet loss rate, back-to-back burst capability, or application layer timeout rate during the TBOX vehicle Ethernet communication process.

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