关键词: 场地整车在环系统；仿真测试；真实动力学；总线注入技术

Abstract: The field vehicle in-the-loop simulation test system combines the real dynamics of real vehicle testing with virtual scene simulation technology, which is characterized by high test realism, diversified test scenarios and high test safety. This paper firstly introduces the field vehicle in-theloop simulation test system and its sub-system composition, secondly proposes a detailed design for the bus data injection subsystem, and then builds a vehicle field in-the-loop simulation test system based on this design, carries out the field real-vehicle test and the simulation scenario test, and finally carries out the comparative analysis of the test data, which verifies the high realism and high reproducibility of the test system. In the article, an optimized design of the bus data injection subsystem is provided to ensure that the system improves the scalability and portability of the whole test system under the premise of maintaining a high degree of realism and high reproducibility, which provides an important reference for the future industry to develop a field vehicle inthe-loop simulation test system.

Key words: Field vehicle-in-the-loop system; Simulation test; Real dynamics; Bus injection technology