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ADAS ECU simulation test method and test system

A simulation test and technology to be tested, which is applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as huge test pressure, reduced test efficiency, and inability to distinguish the importance of test scenarios, so as to improve production efficiency and save Effect of test cost and test time

Pending Publication Date: 2021-04-23
LIANCHUANG AUTOMOBILE ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are tens of thousands of scenarios for testing ADAS. Since it is impossible to distinguish the importance of different test scenarios, it is necessary to test thousands of scenarios each time. On the one hand, it will bring huge test pressure, on the other hand, it will reduce Test efficiency

Method used

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  • ADAS ECU simulation test method and test system
  • ADAS ECU simulation test method and test system
  • ADAS ECU simulation test method and test system

Examples

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Effect test

no. 1 example ；

[0046] Such as figure 1 As shown, the present invention provides a kind of ADAS ECU emulation testing method, comprises the following steps:

[0047] S1, providing video source;

[0048] S2, converting the video source into a video format conforming to the ADAS ECU to be tested, and injecting it into the ADAS ECU to be tested;

[0049] S3, providing a vehicle dynamics model and a graphical simulation scenario, the vehicle dynamics model outputs test signals to the ADAS ECU to be tested according to the graphical simulation scenario;

[0050] S4, the ADAS ECU to be tested implements the open / closed MiL test of the graphical simulation scene and the in-loop Hil closed-loop test according to the output test signal.

no. 2 example ；

[0052] continue to refer figure 1 As shown, the present invention provides a kind of ADAS ECU emulation testing method, comprises the following steps:

[0053] S1, providing a video source, the video source includes a real video stream and / or a graphical simulation scene;

[0054] The real video stream can be the dynamic traffic information collected; the graphical simulation scene can be provided by graphical simulation scene software, including but not limited to Prescan; the graphical simulation scene includes traffic scene model, road model, weather environment model, traffic participant model and sensor model; the sensor model includes camera, radar, GPS and vehicle-to-vehicle communication;

[0055] S2, converting the video source into a video format conforming to the ADAS ECU to be tested, and injecting it into the ADAS ECU to be tested;

[0056] S3, providing a vehicle dynamics model and a graphical simulation scenario, the vehicle dynamics model outputs test signals...

no. 3 example ；

[0059] Such as figure 2 As shown, an ADAS ECU simulation test system includes:

[0060] The upper computer is used to provide real video streams or graphical simulation scenes; correspondingly, the graphical simulation scenes can be output from the lower computer to the upper computer through Ethernet;

[0061] A video injection module, which is used to convert the real video stream into a video format conforming to the ADAS ECU to be tested, and inject the ADAS ECU to be tested;

[0062] The lower computer, which provides the vehicle dynamics model and graphical simulation scene, the vehicle dynamics model outputs the test signal to the ADAS ECU to be tested according to the graphical simulation scene, and realizes the open / closed MiL test of the graphical simulation scene and the Hil closed loop in the loop test.

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Abstract

The invention discloses an ADAS ECU simulation test method. The method comprises the following steps: providing a video source; converting the video source into a video format conforming to the ADAS ECU to be tested, and injecting the video format into the ADAS ECU to be tested; providing a vehicle dynamics model and a graphical simulation scene, wherein the vehicle dynamics model outputs a test signal to the ADAS ECU to be tested according to the graphical simulation scene; and the ADAS ECU to be tested realizes an open / close MiL test of a graphical simulation scene and an in-loop Hil closed-loop test according to the output test signal. The invention further discloses an ADAS ECU simulation test system. Various test scenes or environments can be simulated in a limited test environment through real-time coupling of the real video stream and / or (simulated) graphical simulation scene and the vehicle dynamics model, the test cost and the test time can be greatly and remarkably saved, and the production efficiency can be improved.

Description

technical field [0001] The invention relates to the field of automotive electronics, in particular to an ADAS (intelligent assisted driving) ECU simulation test method based on video injection and vehicle dynamics model. The invention also relates to an ADAS ECU simulation test system based on video injection and vehicle dynamics model. Background technique [0002] Environmental perception is one of the key technologies in ADAS (Intelligent Assisted Driving) and other fields. Vision-based environmental perception, that is, visual perception, is an important technical route for environmental perception. For example, in Tesla's AutoPilot system, the detection and recognition of forward-facing vehicles, pedestrians, lane lines and other targets is mainly based on visual perception technology; the EQ series chips released by MobileEye also integrate visual perception algorithms into the chip. Available to OEMs and developers of autonomous driving systems. [0003] Due to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 栗工芦畅马晓炜
Owner LIANCHUANG AUTOMOBILE ELECTRONICS
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