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This article, written by doctoral student Yu Liangyao from Tsinghua University, was published in the recent issue of the *Journal of Mechanical Engineering*. The paper titled *"Evaluation and Test of Hydraulic System Performance in Anti-lock Braking System"* explores the performance of hydraulic actuators through simulation and experimental data. It identifies key factors that influence the control effectiveness of the anti-lock braking system (ABS) and proposes critical evaluation parameters for the hydraulic system, along with quantitative values. These findings provide a solid foundation for the integration of ABS with vehicle braking systems, contributing to improved safety and performance.
According to industry reports, China's automotive sector has experienced rapid growth over the years, yet it has lagged behind in the development of key automotive electronic control systems. As an essential component of vehicle dynamics control, ABS enhances braking efficiency while maintaining steering control during emergency stops through mechatronic design. It is now a standard safety feature in both passenger cars and large commercial vehicles.
In 2002, the National Natural Science Foundation of China provided its first funding for research on automotive active safety, specifically supporting the project *"Research on the Control Method of Anti-lock Braking System Based on Brake Dissipated Power."* The project received second-round funding and, from January 2002 to December 2004, the research team successfully developed an ABS system with independent intellectual property rights, including the most critical components such as the electronic controller and hydraulic actuator. This breakthrough broke foreign companies' monopoly and achieved large-scale industrialization by mid-2004—marking a milestone in China’s key automotive electronics sector. The project later won the prestigious Automotive Industry Science and Technology Progress Award in 2005.
Building on the success of the earlier ABS research, the Natural Science Foundation re-funded the project *"Research on Vehicle Dynamics Control Method Based on Driver's Driving Intention Recognition"*, starting in January 2006. This new initiative expanded the scope of study, exploring advanced vehicle dynamics control systems such as Traction Control System (TCS), Active Yaw Control (AYC), and eventually integrating them into the Dynamic Stability Control System (DSC), also known as ESP. This evolution represents a major step forward in improving vehicle safety and handling performance.