Intelligent network-connected automobile simulation test system based on whole automobile hardware-in-loop

Abstract

The invention discloses an intelligent network-connected automobile simulation test system based on whole automobile hardware-in-loop, and relates to the technical field of intelligent automobile automatic driving. The system comprises a hub dynamometer, a vehicle dynamics simulation module, a hub dynamometer control module, a sensor simulation module, a visual simulation system and a positioningsimulation module, wherein the hub dynamometer is independently mounted on wheels of a tested whole automobile; the vehicle dynamics simulation module mainly comprises an inertial navigation simulation module and a road load simulation module; the hub dynamometer control module is used for receiving parameters from the vehicle dynamics simulation module; the sensor simulation module is used for simulating the environment around the tested vehicle; the visual simulation system is connected with the output signal of the sensor simulation module and is used for simulating the visual angle of a driver; and the positioning simulation module is used for simulating the position of the vehicle in a high-precision map. According to the system, a large number of different environmental conditions can be simulated without being constrained by external conditions, compared with an actual road experiment, a large amount of time and manpower and a large number of financial resources can be saved, the safety is higher than that of the road experiment, and the test performance is greatly improved.

Description

technical field [0001] The invention relates to the technical field of intelligent vehicle automatic driving, in particular to an intelligent networked vehicle simulation test system based on vehicle hardware-in-the-loop. Background technique [0002] At present, there are two major technological trends in the global automotive industry: electrification and intelligence. Among them, intelligent network vehicles have attracted a lot of investment and research and development efforts. Not only traditional car manufacturers regard it as a key research and development direction, but also a large number of Internet and communication companies have joined the competition for the development of intelligent networked vehicles. The China Association of Automobile Manufacturers defines intelligent networked vehicles as equipped with advanced on-board sensors, controllers, actuators and other devices, and integrated with modern communication and network technologies to realize intelli...

AI Technical Summary

Problems solved by technology

The traditional method based on road experiments is time-consuming and labor-intensive, and it is difficult to ensure that all test conditions are met, especially environmental factors such as weather and traffic, and it is also unable to meet the verification of some dangerous working conditions and failure modes

Although computer simulation based on a virtual environment can improve efficiency, due to the lack of actual hardware, the accuracy and reliability of the test are not enough to ensure the reliability and safety of the final system before it goes on the road

There are also some hardware-in-the-loop simulation systems based on components or subsystems, which integrate part of the hardware, and other parts of the vehicle are simulated by computer. Although the problem of test efficiency and accuracy is partially solved, it cannot be accurately reproduced under different conditions. The response of the whole vehicle system, so there are still some limitations

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