Generation mechanism of high-frequency oscillation in proportional valve with a high-speed on/off valves bridge as the pilot stage

振荡(细胞信号) 占空比 控制理论(社会学) 脉冲宽度调制 控制阀 信号(编程语言) 比例控制 工程类 控制系统 计算机科学 机械工程 电气工程 控制(管理) 人工智能 电压 生物 程序设计语言 遗传学
作者
Nana Li,Hong Ji,Liejiang Wei,Wanyu Dong,Zhan Peng,Xinqiang Liu
出处
期刊:Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science [SAGE]
卷期号:238 (9): 4033-4043 被引量:1
标识
DOI:10.1177/09544062231200694
摘要

A digital proportional valve has a main spool that operates with a high-speed on/off valves bridge as the pilot stage. However, this can cause the spool to undergo high-frequency oscillation during movement, leading to a slower valve response, lower control accuracy, and even control failure. Therefore, it is important to study the oscillation mechanism of the valve. To address this issue, we establish a detailed dynamic model of the digital proportional valve, and analyze the factors affecting the response performance of the proportional valve spool. A method of half-bridge control based on duty cycle is proposed to eliminate the oscillation. The influence regularity of each factor on the response performance of the valve is explored. It is proved that the control method of the high-speed on/off valves bridge and the Pulse-width modulation (PWM) signal-switching frequency of the high-speed on/off valves are the main reasons for the oscillation of the main spool. The proposed half-bridge control method based on duty cycle can eliminate the oscillation in a lower frequency range. In addition, the results show that the pilot oil pressure is an important contributor to the oscillation; the higher the pilot oil pressure, the easier the main spool oscillation occurs. However, the spool mass, oil temperature, and coil temperature of the high-speed on/off valve do not affect the stability of the digital proportional valve.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
fiona完成签到,获得积分10
1秒前
PaoPao发布了新的文献求助10
1秒前
¥#¥-11发布了新的文献求助10
1秒前
科研通AI5应助和花花采纳,获得10
1秒前
yellow完成签到 ,获得积分10
1秒前
2秒前
晴悦发布了新的文献求助10
2秒前
2秒前
Owen应助xiao.yang采纳,获得10
2秒前
谨慎飞丹完成签到 ,获得积分10
4秒前
Jeffrey完成签到,获得积分10
4秒前
dropwater完成签到,获得积分10
5秒前
牧析山发布了新的文献求助10
5秒前
5秒前
MHJJJ发布了新的文献求助30
5秒前
微笑完成签到,获得积分10
6秒前
闪闪纸飞机完成签到,获得积分10
6秒前
7秒前
Nextone完成签到,获得积分10
7秒前
赘婿应助疯狂的小蘑菇采纳,获得30
8秒前
123完成签到,获得积分10
8秒前
Akim应助niekyang采纳,获得10
8秒前
实验室扛把子完成签到,获得积分10
9秒前
舒心的钻石完成签到,获得积分10
10秒前
11秒前
12秒前
右旋王小二完成签到,获得积分10
12秒前
123发布了新的文献求助30
13秒前
13秒前
酷酷宝马发布了新的文献求助10
13秒前
13秒前
14秒前
16秒前
英俊的铭应助流浪采纳,获得10
16秒前
17秒前
和花花发布了新的文献求助10
17秒前
小魏哥哥发布了新的文献求助10
18秒前
自然函完成签到,获得积分10
19秒前
centlay发布了新的文献求助10
19秒前
小肆完成签到 ,获得积分10
20秒前
高分求助中
Comparative Anatomy of the Vertebrates 9th 3000
Continuum Thermodynamics and Material Modelling 3000
Production Logging: Theoretical and Interpretive Elements 2700
Les Mantodea de Guyane Insecta, Polyneoptera 1000
Structural Load Modelling and Combination for Performance and Safety Evaluation 1000
Conference Record, IAS Annual Meeting 1977 820
England and the Discovery of America, 1481-1620 600
热门求助领域 (近24小时)
化学 材料科学 生物 医学 工程类 有机化学 生物化学 物理 纳米技术 计算机科学 内科学 化学工程 复合材料 基因 遗传学 物理化学 催化作用 量子力学 光电子学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3571872
求助须知:如何正确求助?哪些是违规求助? 3142287
关于积分的说明 9446687
捐赠科研通 2843683
什么是DOI,文献DOI怎么找? 1562971
邀请新用户注册赠送积分活动 731530
科研通“疑难数据库(出版商)”最低求助积分说明 718557