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1. Optimization Design of Hydraulically Interconnected Suspension Based on Orthogonal Experiment | |||
Zhou Bing,Long Lefei,Wu Xiaojian | |||
Transportation Engineering 06 March 2018 | |||
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Abstract:In this paper, a 4-DOF roll-plane half-car model of hydraulically interconnected suspension (HIS) system is established, and the dynamic equations in frequency domain for the mechanical-hydraulic coupled system are derived. Then, the sensitivities of the vertical and roll modal responses to the hydraulic parameters are analyzed by employing the Sobol global analysis approach. The results indicate that the parameters of accumulators and damping valves have a significant effect on the vertical and roll modal vibrations. On this basis, the high sensitive hydraulic parameters are selected as optimized variables, and an optimization objective function is designed by mixing the vertical acceleration power spectral density and the roll angular acceleration power spectral density via an S-function. Thereafter the HIS system is optimized using the orthogonal optimization method. Finally, simulations at the speed of 10m/s, 20m/s and 30m/s indicate the optimized HIS system synthetically improves the vehicle ride comfort and roll stability. | |||
TO cite this article:Zhou Bing,Long Lefei,Wu Xiaojian. Optimization Design of Hydraulically Interconnected Suspension Based on Orthogonal Experiment[OL].[ 6 March 2018] http://en.paper.edu.cn/en_releasepaper/content/4743695 |
2. Integrated Yaw and Roll Stability Control for Sport Utility Vehicles in Highway Turning Scenario | |||
GE Jin,GAO Feng,XU Guoyan,SONG Xiaolin | |||
Transportation Engineering 14 May 2012 | |||
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Abstract:This paper designs an integrated control strategy of vehicle yaw and rollover stability to enhance the active safety of highway vehicles in turning scenario. A rollover predictor is built based on Time-To-Rollover index. Modified Linear Quadratic Regulation is used in roll stability control, and Partial-Integral design is used in yaw stability control. With Carsim and MATLAB, simulations of fishhook maneuver and double lane-change test are conducted to evaluate the effectiveness of the control configuration and to validate the control method. The result shows that this controller performs well in maintaining vehicle roll and yaw stability. This study provides a theoretical basis towards a unified chassis control of coupled roll and yaw stability. | |||
TO cite this article:GE Jin,GAO Feng,XU Guoyan, et al. Integrated Yaw and Roll Stability Control for Sport Utility Vehicles in Highway Turning Scenario[OL].[14 May 2012] http://en.paper.edu.cn/en_releasepaper/content/4478467 |
3. MODELING DRIVER CAR-FOLLOWING BASED ON THE QUEUING NETWORK COGNITIVE ARCHITECTURE | |||
Bi Luzheng ,Liu Yili | |||
Transportation Engineering 18 June 2009 | |||
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Abstract:Driver car-following control is a quite common activity in driving. Modeling driver car-following in a cognitive architecture can contribute to driving-related human factors research. Queuing Network-Model Human Processor (QN-MHP) is a computational cognitive architecture developed to represent human information processing as a queuing network on the basis of neuroscience and psychological findings. In this paper, using the QN-MHP cognitive architecture, we propose a driver car-following model to represent the concurrent perceptual, cognitive, and motor activities involved in the task of driver car-following. The simulation results show that this model can perform the control process of car-following well, and the results are consistent with those of driver control. | |||
TO cite this article:Bi Luzheng ,Liu Yili . MODELING DRIVER CAR-FOLLOWING BASED ON THE QUEUING NETWORK COGNITIVE ARCHITECTURE[OL].[18 June 2009] http://en.paper.edu.cn/en_releasepaper/content/33237 |
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