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正本文针对汽车座椅系统结构分析,提出了座椅的一般设计要满足人机工程要求;在行驶过程中,应有效削弱地面传递的冲击和振动;驾驶过程中要减少盲区等要求。通过分析人体生理结构、人体测量学以及人体工程学与乘坐舒适性的关系,得出了最舒适的乘坐姿势和座椅尺寸参数,这些座椅设计参数直接影响了座椅的舒适性。随着社会的进步和生活水平的提高,汽车成为日常生活中不可缺少的交通工具,人们在汽车中停留的时间也越来越长,这样汽车的舒适性也变得尤为重要,而汽车座椅对舒适性影响最大,因此汽车座椅舒适性的设计要求也越来越高,而其中座椅舒 相似文献
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汽车座椅骨架及功能件是支撑驾乘人员坐姿的重要载体,其外形与布置参数极大地影响着驾乘人员安全性、操作、乘坐舒适性。座椅骨架及功能件布置更是座椅工程设计的重点,是造型设计的基础。文章基于人体工程学及相应法规,分析电动座椅前后调节、高度调节、靠背旋转调节、腰托四向调节、头枕上下调节的设计原理及参考依据,可在造型设计阶段确认座椅坐垫、靠背、头枕位置轨迹的工程硬点,确保造型设计符合安全性、可操作性及舒适性,提升电动座椅整体设计质量,为整车内饰造型设计提供座椅骨架模块的理论支持,提高汽车内饰分组设计的效率。 相似文献
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汽车座椅弹簧的作用是在汽车形式过程中达到减震的作用,提高驾驶人的舒适感,当车辆长期在不平整的路面时,座椅能够降低车辆振动对人体机能带来的伤害,避免驾驶人由于血液循环等问题对视觉造成影响而带来交通安全问题。本文首先分析汽车机械振动对驾驶人的影响,通过确定座椅高度等内容研究汽车座椅弹簧设计重点,通过进行弹簧性能实验等内容研究汽车座椅弹簧设计优化方式。 相似文献
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座椅弹性元件的结构设计是否合理,直接影响座椅的静态特性和动态特性,从而影响座椅的舒适性。因此,弹性元件的结构设计,是座椅舒适性设计的主要环节,本文试以现代汽车座椅上广泛采用的聚氨酯泡沫塑料模塑整体成形的弹性元件的结构特点,探讨汽车座椅弹性元件的舒适结构设计所必须遵循的原则,供有关人员参考。 相似文献
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《JSAE Review》1999,20(4):499-504
This paper addresses the effects of field of view on lateral control performance in a vision-based autonomous vehicle with simulation studies. When a vehicle drives around a circle with the lateral control algorithm proposed here, the performance is evaluated for a tracking error and ride quality for locations and sizes of the field of view. The results show that a field of view covering from 10 to 30 m in front of a vehicle is the optimal with respect to both the error and the ride quality, and it is independent of the vehicle speed. 相似文献
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汽车脉冲输入平顺性评价指标限值的研究 总被引:13,自引:2,他引:13
在分析了脉冲输入下人体所受到的振动速度响应到基础上,运用ISO2631新草案对人体健康的评价指标和限值,提出了脉冲输入下汽车平顺性评价指标的限值,最后以东风EQ2102C型军用越野汽车为例,说明了脉冲输入下汽车行驶平顺性的评价过程。 相似文献
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《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》2012,50(5-6):457-476
SUMMARY The computer modelling of vehicle ride and handling has been widely reported, but often only one or other of these functions is considered. This is especially true in the design of active suspension controllers, where the effects that improvements in the performance of one aspect have on the other are often not presented. This paper initially describes a combined ride and handling model for a large executive saloon fitted with a slow-active suspension. Separately derived ride and roll control strategies are combined and the effects on both ride and handling considered for straight running and various handling man?uvres on rough roads. The results are compared to the original passively suspended vehicle and the effect of running each strategy separately. 相似文献
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D.C. Rutledge M. Hubbard D. Hrovat 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》1996,25(2):113-136
Researchers have proposed various active suspension concepts to optimize the tradeoff between ride and handling in passenger vehicles. A few investigators suggested inclusion of the passenger jerk, the derivative of the passenger acceleration, as a measure of ride quality in the performance index. Minimization of a performance index then optimizes both the acceleration and jerk as well as other outputs representing handling quality and design constraints. This approach is called jerk optimal control.
This paper compares two different vehicle models of increasing complexity (the one and two DOF quarter car) using jerk optimal control. Different aspects of suspension performance are investigated, including the structure of the system transfer functions, the structure of the force control laws, and the tradeoffs between the various root mean square (rms) outputs defining system ride and handling performance. Tables compare the numerical results of the two models, allowing predictions of actual vehicle performance.
The results of the two models show the same basic trend for the tradeoff between ride and handling quality: at a constant level of rms passenger acceleration the rms passenger jerk can be reduced significantly, but only at a cost of increased rms tire deflections. In physical terms, a softer ride results in degraded handling performance. For a chosen level of ride improvement, the more realistic two DOF quarter car model predicts more severe degradation of handling. The latter nevertheless predicts a substantial increase in vehicle ride quality is possible through a 55% reduction in jerk. It is expected that actual suspensions could also produce significant increases in ride quality through jerk reduction. Jerk optimal suspensions could find use both in higher end passenger vehicles and in transports for vibration sensitive cargo. 相似文献
This paper compares two different vehicle models of increasing complexity (the one and two DOF quarter car) using jerk optimal control. Different aspects of suspension performance are investigated, including the structure of the system transfer functions, the structure of the force control laws, and the tradeoffs between the various root mean square (rms) outputs defining system ride and handling performance. Tables compare the numerical results of the two models, allowing predictions of actual vehicle performance.
The results of the two models show the same basic trend for the tradeoff between ride and handling quality: at a constant level of rms passenger acceleration the rms passenger jerk can be reduced significantly, but only at a cost of increased rms tire deflections. In physical terms, a softer ride results in degraded handling performance. For a chosen level of ride improvement, the more realistic two DOF quarter car model predicts more severe degradation of handling. The latter nevertheless predicts a substantial increase in vehicle ride quality is possible through a 55% reduction in jerk. It is expected that actual suspensions could also produce significant increases in ride quality through jerk reduction. Jerk optimal suspensions could find use both in higher end passenger vehicles and in transports for vibration sensitive cargo. 相似文献
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随动式悬架转向原理及操纵稳定性分析 总被引:4,自引:1,他引:4
本文简要介绍了随动式悬架结构。通过对其中的橡胶悬置块结构与功能分析,揭示了其中随动转向特性原理,并初步揭示这种特性对改善汽车操纵稳定性所起到的重要作用。此种悬架结构也有县于汽车平顺性的改善。 相似文献