基于客票数据的城市轨道交通车站客流控制决策研究

城市轨道交通大客流控制是保证运行秩序和乘客安全的客运组织管控手段,目前由运营人员根据经验进行大客流辨识和客流控制决策的模式具有一定的主观性和滞后性。基于自动售检票系统(AFC)历史客票数据,分析车站大客流的发展规律,基于实时客票数据和列车运行实绩,获取进站客流的实时聚集数量及其空间分布情况,提出的辅助决策方法能够基于客票数据确定车站客流控制等级和控制时机,具备较好的精确性和前瞻性。     

高温条件下梁体预制混凝土施工质量控制措施

结合工程项目实例，对炎热夏季高温条件下混凝土的施工特点进行了分析，制定了有针对性的梁体预制混凝土施工的质量控制措施，并通过实施取得了较好的效果。     

暗挖车站跨既有隧道施工技术

针对洞桩法暗挖车站跨既有隧道施工项目,通过增加施工通道,采用门式钢架加固等创新、改良工艺,解决了施工工序转换的难题,节约工程成本,降低施工风险。     

基于DYNAware的车辆稳定性控制仿真研究

使用车辆动力学仿真软件DYNAware／ve—DYNA，建立15自由度的参数化车辆模型，基于稳定性控制原理，以横摆角速度和质心侧偏角为控制变量，采用改进的横摆力矩决策计算方法，用Matlab／simulink建立控制器模型，并通过界面将其导入Ve—DYNA中。最后通过双移线和正弦延迟仿真实验验证了控制策略的有效性。     

Observer-based clutch disengagement control during gear shift process of automated manual transmission

A clutch disengagement strategy is proposed for the shift control of automated manual transmissions. The control strategy is based on a drive shaft torque observer. With the estimated drive shaft torque, the clutch can be disengaged as fast as possible without large driveline oscillations, which contributes to the reduction of total shift time and shift shock. The proposed control strategy is tested on a complete powertrain simulation model. It is verified that the system is robust to the variations of driving conditions, such as vehicle mass and road grade. It is also demonstrated that the revised system with switched gain can provide satisfactory performance even under large estimation error of the engine torque.     

黑龙江辖区乡镇船舶超载问题探析

乡镇船舶普遍存在的超载运输现象是水上安全监督管理的难点，更是船舶安全的重大隐患。文中从公共管理和经济学角度分析了乡镇船舶超载运输的原因，并有针对性地提出了治理乡镇船舶超载运输的对策建议。     

A model-based traction control strategy non-reliant on wheel slip information

A traction control system (TCS) for two-wheel-drive vehicles can conveniently be realised by means of slip control. Such a TCS is modified in this paper in order to be applicable to four-wheel-drive vehicles and anti-lock braking systems, where slip information is not readily available. A reference vehicle model is used to estimate the vehicle velocity. The reference model is excited by a saw-tooth signal in order to adapt the slip for maximum tyre traction performance. The model-based TCS is made robust to vehicle modelling errors by extending it with (i) a superimposed loop of tyre static curve gradient control or (ii) a robust switching controller based on a bi-directional saw-tooth excitation signal. The proposed traction control strategies are verified by experiments and computer simulations.     

汽车固定线计算机检测系统设计与应用

采用计算机对汽车的制动性能，车速，前轮侧滑三种性能指标进行了综合地检测。着重介绍了在制动性能检测中采用的差速辊的功能和优点，分析了汽车的各种动作及其相互关系并编制了控制程序。进行了软硬件联调和分析研究。     

镀锌钢带恒速卷绕的计算机控制

提出了采用计算机控制实现镀锌钢带以恒定速度卷绕的技术方法.要达到整个卷绕过程中绕线速度恒定,关键是以正确的算法计算,逐字减少D/A转换控制字的时间间隔.     

基于鲁棒性的空调自控系统设计

分析了空调自控系统的主要特性,并介绍了一种基于组合自校正控制策略的自适应控制算法,同时采取一些解决工程实际问题的辅助措施,以增强系统的抗干扰能力和对未建模动态、时变参数的鲁棒性.