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Testing method and system of auxiliary driving vehicle hardware in loop simulation

A technology for simulation testing and driving assistance, applied in electrical testing/monitoring, etc., can solve problems such as hardware simulation testing of vehicles that cannot assist driving, achieve the effects of shortening the research and development cycle, improving the degree of simulation reduction, and improving test efficiency

Active Publication Date: 2019-06-18
ZHENGZHOU YUTONG BUS CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a hardware-in-the-loop simulation test method and system for an assisted driving vehicle, which is used to solve the problem that the prior art cannot perform a hardware-in-the-loop simulation test for an assisted driving vehicle

Method used

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  • Testing method and system of auxiliary driving vehicle hardware in loop simulation

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Embodiment 1

[0028] The assisted driving vehicle hardware-in-the-loop simulation testing method of the present invention comprises the following steps:

[0029] The corresponding scene information is collected according to the set test scene. The test scene includes environmental elements and traffic elements around the vehicle. The environmental elements include weather conditions, lighting conditions, and traffic signs. The traffic elements include the motion posture and trajectory of moving objects around the vehicle. Then, the corresponding scene information is sent to the smart car controller to be tested, and the smart car controller to be tested performs information fusion and decision-making according to the scene information, and sends the instruction of lateral dynamics to the driver model in the hardware-in-the-loop simulation platform. The longitudinal dynamics commands are sent to the vehicle controller, and the vehicle controller sends the longitudinal dynamics commands to the...

Embodiment 2

[0034] The smart bus hardware-in-the-loop simulation test system of the present invention comprises a smart car controller, an electric bus vehicle controller, an NI (National Instruments, National Instruments Co., Ltd.) hardware-in-the-loop simulation platform, scene simulation software, and vehicle dynamics model, such as figure 1 shown.

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Abstract

The invention relates to a testing method and system of auxiliary driving vehicle hardware in loop simulation. Information fusion and decision are conducted through a to-be-tested intelligent controller according to corresponding scene information, a lateral dynamics command is sent to a driver model of the hardware in a loop simulation platform, a longitudinal dynamics command is sent to a wholevehicle control unit, then the longitudinal dynamics command is sent to a whole vehicle dynamics model through the whole vehicle control unit, the driver model and the whole vehicle dynamics model respectively response to the lateral dynamics command and the longitudinal dynamics command, thus present vehicle gesture information is generated, the present vehicle gesture information is compared with standard vehicle gesture information, and testing situation of the hardware in loop simulation is judged. According to the testing method and system of the auxiliary driving vehicle hardware in loopsimulation, joint simulation is conducted on the to-be-tested intelligent vehicle controller and the whole vehicle control unit, the simulation platform is constructed according to a real vehicle system, the simulation reduction degree and precision are improved, and the problems that testing period of a real vehicle is long, the efficiency is low, the cost is high, and testing is influenced by factors such as scene and weather limiting are solved.

Description

technical field [0001] The invention belongs to the field of simulation testing of intelligent driving of new energy buses, and in particular relates to a hardware-in-the-loop simulation testing method and system for assisted driving vehicles. Background technique [0002] A smart bus or automobile is a comprehensive system that integrates functions such as environmental perception, planning and decision-making, and multi-level assisted driving. The intelligent information exchange of roads, roads, etc. enables the bus to have intelligent environmental awareness, which can automatically analyze the safety and dangerous state of the bus, and make the bus reach the destination according to the wishes of the people, and finally achieve the purpose of operating instead of people. While the development of intelligent driving of electric buses has brought us great convenience, its safety has also become the top priority of our customers and the developers of every OEM. [0003] A...

Claims

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Application Information

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IPC IPC(8): G05B23/02
Inventor 王滋润杨学青苏常军吴光耀
Owner ZHENGZHOU YUTONG BUS CO LTD
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