吉林大学学报(工学版) ›› 2003, Vol. ›› Issue (3): 104-106.

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Method of electronic-hydraulic proportion control

GONG Wen-bin, LIU Xin-hui, SUN Yan-wei   

  1. College of Mechanical Science and Engineering, Jilin University, Changchun 130025, China
  • Received:2002-11-15

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Abstract: A math. model for current of proportional valve using PWM control theory and eletro hydraulic proportional control was presented.The relations between duty ratio (D) and average current(I),duty ratio (D) and fluctuation current (dI) in PWM control,and the theory of chopper stabilized current control were discussed.The application of specific circuit was given.The results provide the basic method for the design of the electro hydraulic proportional control system.

Key words: electro-hydraulic proportion, loader, chopper-stabilized current

CLC Number: 

  • TP273
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