-
摘要: 为了解制动工况下转向系统敏感度对前轮摆振的影响程度, 将车轮、前轴与钢板弹簧作为一个整体进行考虑, 分析了钢板弹簧和转向系统的空间状态变化情况, 提出了前轮摆动角的计算方法, 以转向系统空间状态引起的前轮摆动角为指标评价转向系统敏感度。计算结果表明: 在空载状态下, 当制动力达到35kN时, 前轮摆动角最大值为0.5°。可见, 此车转向系统敏感度较低, 评价结果符合实际, 因此, 计算方法可行。Abstract: In order to determine the effect of the sensitivity of steering system on the shimmy of front wheel under braking condition, wheel, front axle and leaf springs were considered as a whole, the changes of dimensional states of leaf spring and steering system were analyzed, a mathematic method of the shimmy angle of front wheel was proposed, and the sensitivity of steering system was evaluated with the shimmy angle resulted from the change of dimensional state of steering system. Computation result indicates that the maximum of the shimmy angle is 0.5° when braking force is 35 kN. Obviously, the sensitivity of vehicle steering system is lower, the evaluation result accords with its real state, so the method is feasible.
-
Key words:
- automobile engineering /
- steering system /
- sensitivity /
- dimensional state /
- shimmy of front wheel
-
[1] Hac A, Bodie M O. I mprovements in vehicle handling through integrated control of chassis systems[J]. International Journal of Vehicle Autonomous Systems, 2002, 11 (1): 83-110. [2] Pilutti T, Ulsoy G, Hrovat D, et al. Vehicle steering intervention through differential braking[J]. Transactions of the ASME, 1998, 120 (9): 314-321. [3] 李胜, 林逸. 汽车转向轮摆振研究[J]. 汽车技术, 2004, 35 (11): 16-19. https://www.cnki.com.cn/Article/CJFDTOTAL-QCJS200411004.htmLi Sheng, Lin Yi. Study on shimmy of automotive steering wheels[J]. Automotive Technology, 2004, 35 (11): 16-19. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-QCJS200411004.htm [4] 贺丽娟, 林逸. 汽车操纵稳定性与前轮摆振的非线性仿真分析[J]. 汽车工程, 2007, 29 (5): 389-392. doi: 10.3321/j.issn:1000-680X.2007.05.007He Li-juan, Lin Yi. Nonlinear simulation on vehicle handling stability and front wheel shimmy[J]. Automotive Engineering, 2007, 29 (5): 389-392. (in Chinese) doi: 10.3321/j.issn:1000-680X.2007.05.007 [5] 韩同群, 邹汉华. EQ2102越野汽车前轮摆振影响因素试验分析及改进措施[J]. 汽车技术, 2007, 38 (1): 34-37. https://www.cnki.com.cn/Article/CJFDTOTAL-QCJS200701009.htmHan Tong-qun, Zou Han-hua. The experi mental study and analysis of influence factors on front wheel shimmy and improving measure of EQ2120 off-road vehicle[J]. Automotive Technology, 2007, 38 (1): 34-37. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-QCJS200701009.htm [6] 顾款. 考虑转向系间隙的汽车前轮摆振系统研究[D]. 合肥: 合肥工业大学, 2007. [7] 郭孔辉. 汽车操纵动力学[M]. 长春: 吉林科学技术出版社, 1991. [8] 王志宏. 后钢板弹簧悬架变形对传动轴最大滑出量的影响[J]. 汽车工程, 2001, 23 (3): 167-171. https://www.cnki.com.cn/Article/CJFDTOTAL-QCGC200103006.htmWang Zhi-hong. The Effect of deformation of rear leaf-spring suspension on the variation of total length of propeller shaft[J]. Automotive Engineering, 2001, 23 (3): 167-171. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-QCGC200103006.htm [9] 孙家广. 计算机图形学[M]. 北京: 清华大学出版社, 1998. [10] GB12676—1999, 汽车制动系统结构、性能和试验方法[S]. -
下载:
点击查看大图
图(3)
计量
- 文章访问数: 260
- HTML全文浏览量: 92
- PDF下载量: 331
- 被引次数: 0
