The regulation system for secondary suspension on metro vehicle is of vital importance to the security of train op eration,riding comfortability and economic performance.

• 地铁车辆的二系悬挂调平系统关系到列车运行的安全性、舒适性、经济性,文章对不同的调平系统进行了分析,并建议应综合考虑,合理地选择调平系统。