高度调整阀和空气弹簧一起实现空气弹簧高度的自动调整,在实际运用中有的采用两点控制,有的采用四点控制.本文通过对比分析,讨论2种控制方式的利弊,为实际运用提供参考.%The levelling valve is used together with the air spring to automatically adjust the height of an air spring. The 2-point control or 4-point control is used in actual operation. In this paper, through comparison and analysis, the advantages and disadvantages of the two control modes are discussed to provide reference for practical operation.
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