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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
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	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
	Show/Hide Abstract \| Cite this paper︱Full-text: PDF (0 B)

	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. Two-Way Bandwidth Maximization Model with Proration Impact Factor for Unbalanced Bandwidth Demands
	LU Kai,XU Jianmin,LI Lin
	Transportation Engineering 28 September 2010
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	Abstract:Progression bandwidth maximization is one of the most important signal coordination strategies for urban arterial signal control. MAXBAND and MULTIBAND have implemented a weighting factor that is capable to adjust the bandwidth according to unbalance bandwidth demands in a two-way bandwidth maximization problem. However, the maximum bandwidth solution may not be achieved with certain values of weighting factors. Therefore, it might require users to have a good idea about what weighting factor to use in order not to compromise the total bandwidth. In this paper, we proposed a new two-way bandwidth maximization model that not only maximizes the total bandwidth but also introduces a bandwidth proration impact factor. This impact factor allows the user to control the importance of satisfying the bandwidth demand ratio. Numerical examples have demonstrated that the new model has the following advantages: (a) when two-way progressions are difficult to achieve, the model first guarantees maximum total bandwidths and then automatically prorates the bandwidth fully to the direction with higher traffic demand; (b) when two-way progressions could be achieved, the model not only guarantees maximum total bandwidth but automatically prorates the bandwidth in a ratio as close as possible to the ratio of bandwidth demands.
	TO cite this article:LU Kai,XU Jianmin,LI Lin. Two-Way Bandwidth Maximization Model with Proration Impact Factor for Unbalanced Bandwidth Demands[OL].[28 September 2010] http://en.paper.edu.cn/en_releasepaper/content/4386983

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