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基于自舉電路的共軌噴油器驅(qū)動(dòng)電路優(yōu)化設(shè)計(jì)
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國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃（973計(jì)劃）資助項(xiàng)目（2007CB210001）


Optimization Design of Common-rail Injector Driving Circuit Based on Bootstrap Circuit
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    摘要:

    共軌柴油機(jī)電控噴油器電磁閥的驅(qū)動(dòng)電路一般采用Peak & Hold驅(qū)動(dòng)方式，在不同的階段對(duì)電流變化的快慢要求不同。為滿足噴油過程中對(duì)電流的變化要求，從理論上分析電路的狀態(tài)響應(yīng)特性，優(yōu)化電磁閥驅(qū)動(dòng)電路，以提高電磁閥的響應(yīng)速度，設(shè)計(jì)了基于自舉電路的噴油器驅(qū)動(dòng)電路。試驗(yàn)結(jié)果表明，在相同的驅(qū)動(dòng)參數(shù)下，優(yōu)化后的驅(qū)動(dòng)電路在噴油過程中保持階段電流的波動(dòng)幅值減小50%，而噴油器關(guān)閉過程的響應(yīng)時(shí)間只需20μs，實(shí)現(xiàn)了精確控制噴油量和噴油定時(shí)的目的。

    Abstract:

    The driving mode of Peak & Hold current shape is adopted in common rail diesel electronic control injector driving circuit. The requirements of current change are different in different stages. In order to meet the changes in the injection process, the state responses characteristics of the circuits to optimize the circuit and improve the response speed of electronic valve were analyzed theoretically. The driving circuit was designed based on the bootstrap circuit. The results showed that the fluctuations amplitude of the current in the hold stage reduced by 50% under the same driving parameters in the optimized circuit, and the response time was only 20μs in the injector closing process, which realized the purpose of precise control of the injection quantity and injection timing.

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郭樹滿,蘇萬華,劉二喜,陳禮勇.基于自舉電路的共軌噴油器驅(qū)動(dòng)電路優(yōu)化設(shè)計(jì)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2012,43(5):11-15. Guo Shuman, Su Wanhua, Liu Erxi, Chen Liyong. Optimization Design of Common-rail Injector Driving Circuit Based on Bootstrap Circuit[J]. Transactions of the Chinese Society for Agricultural Machinery,2012,43(5):11-15.

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  • 在線發(fā)布日期: 2012-06-07
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