|
| Effect of Control Parameters of Electro-Hydraulic Variable Valve System on Valve Movement |
| DOI： |
| Key Words:IC engine electro-hydraulic variable valve system additional lift additional valve max lift valve volatility |
| Author Name | Affiliation | | ZENG Dongjian, FAN Likang, HAN Weiqiang, HAN Zhiqiang, LIU Zhi, WANG Yu | Vehicle Measurement, Control and Safety Key Laboratory of Sichuan Province, School of Transportation and Automotive Engineering, Xihua University, Chengdu 610039, China |
|
| Hits: 2553 |
| Download times: 1912 |
| Abstract:A set of electro-hydraulic variable valve system (EHVVS) was investigated in order to research the characteristics of additional valve lift under different oil pressures and control pulses. The results indicate that the valve closing depends on the control pulse width, and the oil pressure can affect the speed of valve opening at the additional lift. The max value and fluctuation of the additional valve lift are mainly decided by the oil pressure, and the control pulse width has a little effect on the fluctuation. When the oil pressure is 3.5 MPa, the fluctuation is small, suggesting the valve works stable. The research reveals that the EHVVS has a fast response to valve opening and closing. |
| View Full Text View/Add Comment Download reader |
|
|
|