Fernando Zolubas Preto , Bruno Augusto Angélico , Evandro Leonardo Silva Teixeira , João Francisco Justo
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引用次数: 0
Abstract
This work proposes a unification of safety-proven control laws with modeling-free approaches, with a primary focus on handling complex applications. The proposed control law is an Ultra-Local Sliding-Mode Control (ULSMC) with Control Barrier Function (CBF) that is a combination capable of ensuring safety and robustness using minimal phenomenological modeling. This approach is used to design an Adaptive Cruise Control (ACC) system that has successfully accomplished some of the most challenging Euro NCAP Tests in a Hardware-In-the-Loop platform, using a realistic vehicular simulator. Moreover, a cubic per part condition is developed on the time derivative of the CBF, allowing the CBF safety filter to dynamically arbitrate between prioritizing safety, performance, or safety-recoverability according to the safety level measured by the CBF function. In particular, safety-recoverability is verified through simulations of realistic hazardous scenarios caused by external vehicles on the road. Furthermore, a modified headway-time-based CBF is developed to address ACC operation under complete stop scenarios. The robustness of the ULSMC control is shown to be essential to ensure ACC performance requirements when adopting an almost modeling-free approach.
期刊介绍:
Mechatronics is the synergistic combination of precision mechanical engineering, electronic control and systems thinking in the design of products and manufacturing processes. It relates to the design of systems, devices and products aimed at achieving an optimal balance between basic mechanical structure and its overall control. The purpose of this journal is to provide rapid publication of topical papers featuring practical developments in mechatronics. It will cover a wide range of application areas including consumer product design, instrumentation, manufacturing methods, computer integration and process and device control, and will attract a readership from across the industrial and academic research spectrum. Particular importance will be attached to aspects of innovation in mechatronics design philosophy which illustrate the benefits obtainable by an a priori integration of functionality with embedded microprocessor control. A major item will be the design of machines, devices and systems possessing a degree of computer based intelligence. The journal seeks to publish research progress in this field with an emphasis on the applied rather than the theoretical. It will also serve the dual role of bringing greater recognition to this important area of engineering.