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弱混合動(dòng)力柴油機(jī)起動(dòng)工況仿真與試
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and Test on Starting Condition of Light-hybrid Diesel Engine
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    摘要:

    針對采用ISG弱混合技術(shù)柴油機(jī)常溫下的起動(dòng)工況,,通過分析控制策略,建立了柴油機(jī)的動(dòng)態(tài)管理仿真模型和ISG電機(jī)電磁模型,,對ISG電機(jī)拖動(dòng)柴油機(jī)的起動(dòng)過程進(jìn)行了仿真,,分析了起動(dòng)過程中電機(jī)功率、轉(zhuǎn)矩隨柴油機(jī)轉(zhuǎn)速的變化關(guān)系,,并與柴油機(jī)起動(dòng)臺架試驗(yàn)進(jìn)行對比分析,。研究表明,采用ISG技術(shù)后,,當(dāng)蓄電池的電壓為36~60V時(shí),,均可將柴油機(jī)拖至目標(biāo)轉(zhuǎn)速,滿足起動(dòng)要求,。起動(dòng)時(shí),,ISG電機(jī)各繞組平均起動(dòng)轉(zhuǎn)矩為87.4N?m,,線電流在30~150A,輸出功率呈先增后減的變化趨勢,,功率峰值為4.98kW,。從靜止到著火轉(zhuǎn)速的仿真起動(dòng)時(shí)間只需0.4s,試驗(yàn)結(jié)果為0.5s,;從靜止到怠速穩(wěn)定的仿真時(shí)間僅為2.8s,,試驗(yàn)結(jié)果為3.1s,試驗(yàn)與仿真結(jié)果吻合,。

    Abstract:

    Aimed at the starting condition of light hybrid diesel engine with ISG technology in normal temperature, the working models of diesel engine and ISG electromotor were established. Then, the diesel engine moment of resistance on the starting condition was calculated to obtain the torque and the power from the ISG electrical machinery. And, the simulation to the starting process was carried out. Finally, the test of the ISG electromotor dragging diesel engine under the different voltage was performed to confirm the simulation result. The results showed that with the ISG technology, the diesel engine can be dragged to meet the requirement speed on the battery voltage of 36~60V. The average starting torque of ISG motor is 87.4N?m, the line current of each start winding is 30~150A. and the output power of ISG fall after the first increase with the peak power of 4.98kW. The simulated starting time from 0 to fire is 0.4s, compared with the test result of 0.5s; while time from 0 to stable idling in the simulation is only 2.8s, the test result is 3.1s. So, the test result is tallied with the simulation.

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魏長河,王忠,王宇成,黃成海,唐廷.弱混合動(dòng)力柴油機(jī)起動(dòng)工況仿真與試[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2010,41(4):6-11. and Test on Starting Condition of Light-hybrid Diesel Engine[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(4):6-11.

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