共查询到19条相似文献,搜索用时 125 毫秒
1.
对客车倾翻试验出口认证法规进行介绍;结合丰富的出口认证检测经验,为客车厂家进行倾翻试验提供参考;提出客车倾翻试验仿真分析的必要性。 相似文献
2.
3.
4.
客车被动安全试验技术 总被引:1,自引:1,他引:0
介绍国内外客车被动安全试验标准概况,重点论述客车被动安全性试验技术中的整车倾翻试验和客车顶部静压的试验标准状况,以及客车被动安全标准的发展趋势。 相似文献
5.
6.
7.
8.
9.
10.
11.
《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(4-5):285-297
Recent experiences have shown that even small-medium size passenger cars face an accident which has been connected with commercial vehicles so far: the roll-over. The roll-over is the most horrible accident type for truck drivers, since he/she does not have any indication before it happens, and consequently does not react properly. This article discusses some of the problems of the commercial vehicle stability in general, and offers a solution for detecting and avoiding roll-over by using the existing sensors and actuators of electronic brake system (EBS). 相似文献
12.
L szl Palkovics kos Semsey Eduard Gerum 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》1999,32(4):285-297
Recent experiences have shown that even small-medium size passenger cars face an accident which has been connected with commercial vehicles so far: the roll-over. The roll-over is the most horrible accident type for truck drivers, since he/she does not have any indication before it happens, and consequently does not react properly. This article discusses some of the problems of the commercial vehicle stability in general, and offers a solution for detecting and avoiding roll-over by using the existing sensors and actuators of electronic brake system (EBS). 相似文献
13.
《JSAE Review》1999,20(4):493-497
This paper concerns a technology to estimate the vehicle dynamics transfer function and to correct the control parameter of roll-over compensation system. ARX-model is applied to estimate the transfer function of an actual vehicle. The gravity center height, one of the control parameters of the control model, is corrected so that the transfer function could be in congruence with that of the actual vehicle. The control model forecasts the critical roll-over condition and the control system compensates the critical condition by controlling the braking force distribution. 相似文献
14.
根据侧翻自卸车箱体举升过程中的举升压力变化,利用液压、气动、电路元件的逻辑控制,对箱体举升角度采用自动控制,避免了箱体举升时发生翻车事故。 相似文献
15.
在基础车型实测数据基础上,通过应用计算分析方法,实现变型客车的侧倾稳定性法规认证预测,为变型客车的认证研发提供新的思路和参考。 相似文献
16.
17.
《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(4):568-586
In the last few years, various control systems have been investigated in the automotive field with the aim of increasing the level of safety and stability, avoid roll-over, and customise handling characteristics. One critical issue connected with their integration is the lack of state and parameter information. As an example, vehicle handling depends to a large extent on tyre inflation pressure. When inflation pressure drops, handling and comfort performance generally deteriorate. In addition, it results in an increase in fuel consumption and in a decrease in lifetime. Therefore, it is important to keep tyres within the normal inflation pressure range. This paper introduces a model-based approach to estimate online tyre inflation pressure. First, basic vertical dynamic modelling of the vehicle is discussed. Then, a parameter estimation framework for dynamic analysis is presented. Several important vehicle parameters including tyre inflation pressure can be estimated using the estimated states. This method aims to work during normal driving using information from standard sensors only. On the one hand, the driver is informed about the inflation pressure and he is warned for sudden changes. On the other hand, accurate estimation of the vehicle states is available as possible input to onboard control systems. 相似文献
18.
This study investigated the wheel-lift and roll-over derailment mechanisms caused by train collisions using a precise virtual testing model (VTM) of a Korean high-speed train. The VTM was a complex, nonlinear finite element model composed of the shell, beam, solid, spring, and surface contact elements for the car body, bogies, suspensions, and wheel–rail interfaces. The VTM was validated by checking the errors in the total energy and the dynamic responses of the spring elements. To achieve a quick, dynamic relaxation of the dead weight of the VTM before the collision analysis, the artificial damping method and the artificial force method were introduced and numerically evaluated. The surface-to-surface contact model from commercial software, Ls-Dyna, was applied to the VTM in order to simulate the derailment mechanisms caused by collision accidents. The numerical analyses of the VTM colliding with a large deformable obstacle or a rigid wall revealed for the first time that a mixed slip/roll-over-type derailment mechanism generally occurs. Furthermore, the simulation results were consistent with the results from a simplified theoretical derailment model of a wheel set. 相似文献
19.
为了明确国内外生态驾驶的研究进展,对生态驾驶影响因素、生态驾驶控制策略、生态驾驶实施效果及生态驾驶应用等方面的研究进行综述,介绍驾驶人个性特征、外界刺激信息、道路状况及交通条件、车辆自身特征、行驶参数等生态驾驶的影响因素,归纳生态驾驶的优化控制策略,分析了实施生态驾驶的效果,总结静态、动态的生态驾驶培训方法,生态驾驶辅助设备,生态型智能交通等方面的生态驾驶应用。对文献的梳理和分析表明:生态驾驶无需改变车辆结构便可以减少30%左右的燃油消耗,降低20%~30%的污染物排放;有必要深入研究理论型生态驾驶策略,以定量的、形象化的方式研究适合中国实际情况的生态驾驶辅助系统;需加强生态驾驶的推广,将其纳入驾考培训体系之中,从而全面促进中国驾驶人的节能减排能力。 相似文献