| 流量控制式ECHPS系统转阀结构参数优化设计 |
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| 引用本文： | 郭晓林,季学武,陈奎元.流量控制式ECHPS系统转阀结构参数优化设计[J].农业机械学报,2008,39(11):26-29. |
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| 作者姓名： | 郭晓林 季学武 陈奎元 |
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| 作者单位： | 1. 装甲兵工程学院机械工程系,北京市,100072
2. 清华大学汽车工程系,北京市,100084 |
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| 摘 要： | 在流量控制式电控液压助力转向系统(ECHPS)中,转阀结构参数对系统的可变助力特性有重要的影响.应用液阻网络理论对系统的等效通流面积和助力特性进行了分析.建立了转阀阀口通流面积与转阀主要结构设计参数(小坡口宽度、小坡口圆弧偏心距、阀芯键宽、小坡口轴向长度)之间的数学关系.对转阀的主要结构参数进行了优化设计,优化前为0.9 mm、10 mm、5.76 mm和11 mm,优化后为1.115 mm、4.626 mm、5.652 mm和4.499 mm.仿真计算结果表明优化后可变助力特性范围由1.2升为3,低速转向时最大手力达到了4 N·m.
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| 关 键 词： | 电控液压助力转向 转阀 助力特性 优化 |
Parameter Optimization of Rotary Valve in the Flow Control Type ECHPS System |
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| Guo Xiaolin,Ji Xuewu,Chen Kuiyuan.Parameter Optimization of Rotary Valve in the Flow Control Type ECHPS System[J].Transactions of the Chinese Society of Agricultural Machinery,2008,39(11):26-29. |
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| Authors: | Guo Xiaolin Ji Xuewu Chen Kuiyuan |
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| Institution: | Guo Xiaolin1,2 Ji Xuewu2 Chen Kuiyuan2(1. Academy of Armored Forces Engineering,Beijing 100072,China2. Tsinghua University,Beijing 100084,China) |
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| Abstract: | The rotary valve parameters have significant influences on the assist effort characteristics of the flow control type electronic controlled hydraulic power steering (ECHPS) system. The calculating procedures of the equivalent flow area and assist effort characteristics of a flow control type ECHPS system were analyzed using the principles of hydraulic resistance networks. The mathematical relations between the orifice area of the rotary valve and the configurable design parameters (the metering edge width,t... |
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| Keywords: | Electronic controlled hydraulic power steering Rotary valve Assist effort characteristic Optimization |
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