Abstract
For vehicle adaptive cruise control (ACC) systems, the switching performance between throttle and brake determines the driving comfort, fuel consumption and service lives of vehicle mechanical components. In this paper, an ACC algorithm with the optimal switching control between throttle and brake is designed in model predictive control (MPC) framework. By introducing the binary integer variables, the dynamics of throttle and brake are integrated in one model expression for the controller design. Then the ACC algorithm is designed to satisfy not only safe car following, but also the optimal switching between throttle and brake, which leads to an online mixed integer quadratic programming solved by the nested two-loop method. The simulation results show that the proposed ACC algorithm meets the requirements of safe car following, outperforms the traditional algorithms by performing smoother responses, reducing the switching times between throttle and brake, and therefore improves driving comfort and fuel efficiency significantly.
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This work was supported by Science & Technology Program of Shanghai Maritime University (No. 20120077).
Lihua LUO received her B.S. degree in Electrical Engineering and Automation from Xidian University in 2006, and was recommended to Zhejiang University to purse the Ph.D. degree at the same year. She received Ph.D. degree in Control Science and Engineering in 2011. Currently, she is a lecturer in the college of Transport and Communication in Shanghai Maritime University. Her research includes vehicle adaptive cruise control, traffic flow modeling and parameters calibration.
Ping LI received his Ph.D. degree in Industry Automation from Zhejiang University in 1988. From 1988 to 1990, he was a post doctor in Laboratory of Mechanical Fluid Power Driven and Control of Zhejiang University. From 1995 to 1996, he joined in University of British Columbia (UBC) as a senior visiting scholar. He obtained the honor of ‘Chinese Doctor with outstanding contribution’ from State Education Commission and Academic Degree Commission of State Council in 1990. Currently, he is a professor in Zhejiang University. His research includes modeling, control and optimization of complex system, intelligent transportation system, navigation and control of micro-unmanned helicopters.
HuiWANG received her B.S. degree and M.S. degree in Automation from Zhejiang University in 1982 and 1988, respectively. From 1989, She joined in Zhejiang University, and became a professor in 2002. Her research includes intelligent transportation system, modeling and optimization of complicated industry, and application of computer control system.
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Luo, L., Li, P. & Wang, H. Vehicle adaptive cruise control design with optimal switching between throttle and brake. J. Control Theory Appl. 10, 426–434 (2012). https://doi.org/10.1007/s11768-012-0319-0
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DOI: https://doi.org/10.1007/s11768-012-0319-0