关键词 : 气动发动机;电控;进气门开启角;优化 ; 可变气门中图分类号 :TK472;TH132 文献标识码 : A 文章编号: 1001-7445(2017)03 鄄 0864-10Study on control principle of intake valve opening timing for electronic controlled pneumatic engineCHEN Ping-lu, XU Jing, LI Wei, LIU Mu-hua(College of Engineering,Jiangxi Agricultural University,Nanchang 330045 , China)Abstract : Electronic controlled intake valve is one of the efficient ways to improve the effiency of pneumatic engine ( PE ). A PE’s function process model was built to achieve the change law of working parameters on the intake valve opening timing ( IVOT ) . A test bench of PE using electro ­pneumatic intake valve was set up to validate the working process model . The effects of mainoperating parameters, intake air temperature and intake air presssure ---- IVOT were analyzed byusing the verified model . The control law of IVOT of PE was acquired and the results shows : the optimum IVOT should be advanced by increasing the intake duration angle and rotate speed , or delayed by