This project belongs to the field of electronic control test and verification of vehicle motion control systems. The vehicle motion control system is responsible for functions such as vehicle braking, steering, shifting and body height control. It is a core safety system and needs to meet the highest level requirement that the failure rate per hour is less than one in a million. Previously, system development relied on real vehicles and climate sites, and the development cycle was long; intelligent driving and new energy technologies put forward new technical requirements for the system, which also brought challenges to development; achieving more efficient development while meeting the premise of reliable system verification is the current automotive industry. Difficulty. This project creatively builds a system-integrated vehicle hardware-in-the-loop test (HIL) and electronic control system automated test management platform to realize millisecond-level high-dynamic real-time simulation testing under electromechanical and hydraulic combined loads, solving the above-mentioned system development difficulties; At the same time, as one of the development members of the functional safety national standard, it provides a large number of simulation tests for standard development and effectively supports national standard development. Through industry comparison, the innovative technologies of this project have reached the international advanced level. The main innovations include: (1) Innovatively establishing vehicle XYZ three-dimensional compound kinematics + interconnection test architecture and technology. Vehicle motion control is a joint control of multiple systems. By establishing an open test platform topology, the project has achieved breakthroughs in X/Y/Z three-dimensional multi-HIL interconnection and real-time simulation of vehicle kinematics technology for the first time in the industry, making test scenarios more realistic and vehicle integration Development no longer relies entirely on the site; cross-system testing with the motor drive system and the active safety system HIL enables testing and verification of new technologies such as regenerative braking and active safe driving functions, and expands the field of bench applications. Using central gateway high-speed communication technology and modular programming, the bench achieves milliseconds of simulation accuracy when conducting automated testing. (2) Create an intelligent test case development tool based on natural language to achieve efficient conversion of test cases and support fully automated testing of the system. This tool allows developers to focus more on test case development, use parametric modeling to achieve data interaction between devices, establish an intelligent test case development environment based on natural language, reduce the difficulty of system use, and realize enterprise product development knowledge to product development test cases. Rapid conversion. At present, more than 100,000 test cases have been written, covering full-coverage automated testing of functional logic, communication diagnosis, energy management, software and hardware fault injection, functional safety and performance calibration development. (3) Create a pre-development process for vehicle motion control system functions based on an automated test platform to shorten the product development cycle. Along with the development trend of automobile ldquo; four modernizations", more and more new functions are introduced into the development of vehicle motion control systems. By establishing a pre-positioned development process, the limitation of functional verification development relying on the completion of prototype vehicle manufacturing is avoided, technical requirements are transformed into test requirements, and the company's internal parts test data, road spectrum test data and model resources are used for automation The creation of a test system model shortens the development time by one year. This project won the first prize in Pan-Asia Automotive Technology Innovation, the Quality Technology Award of the China Quality Association and many other awards. Support the drafting of functional safety standards by the National Automobile Standardization Committee, share supplier output test verification requirements and professional technical annual meetings, and lead the latest technology directions in the industry. Relevant innovative results have been successfully applied to the development of new Buick GL8, GL6 and other models, covering SAIC GM small vehicles to mid-to-high-end vehicle platforms. A total of 6 invention patents, 8 utility model patents, and 9 papers were published. As of the end of 2018, the company's new output value was 1,771.2191 million yuan, new profits were 457.5402 million yuan, and new taxes were 291.4033 million yuan. Relevant results have also been applied to K2XX and GEM projects. The cost of single vehicles has been reduced by 326 yuan and 353 yuan respectively. It is expected to save the company by 590 million yuan in costs, with significant economic benefits.