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電磁執(zhí)行器直接驅(qū)動的AMT換擋機構(gòu)
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國家自然科學基金資助項目(51207071)和江蘇省科技支撐計劃資助項目(BE2008133)


Shifting Mechanism of AMT Direct Driven by Electromagnetic Linear Actuator
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    摘要:

    為提高機械式自動變速器（AMT）換擋品質(zhì)并縮短換擋過程動力中斷時間,，提出了一種電磁直線執(zhí)行器直接驅(qū)動的AMT換擋機構(gòu),。換擋機構(gòu)運動總質(zhì)量為1.37 kg，較傳統(tǒng)全電式AMT換擋機構(gòu)總質(zhì)量（約1.78 kg）降低23%,。對換擋過程進行了分段研究,，并在換擋過程數(shù)學模型和AMT試驗臺架基礎上,，驗證了設計方案的可行性。換擋機構(gòu)換擋過程中無選擋操作,，可實現(xiàn)擋位切換時退,、進擋同時進行的功能，轉(zhuǎn)速差為500 r/min,、轉(zhuǎn)動慣量為0.03 kg·m2,，換擋時3擋至4擋的換擋時間約為120 ms，提升了AMT的換擋品質(zhì),，且仍有進一步提高的余地,。研究表明，電磁直線執(zhí)行器直接驅(qū)動的AMT換擋機構(gòu)可實現(xiàn)自動換擋功能,。

    Abstract:

    In order to improve the shifting quality and reduce the shift time, a shifting mechanism for automated manual transmission (AMT) direct driven by electromagnetic linear actuator was proposed. Compared with the conventional AMT (about 1.78 kg), the total mass of shifting mechanism (1.37 kg) was reduced by 23%. The shift process was divided into several stages and the feasibility of design program was verified based on detailed mathematical models of shift process and the test bench of AMT. Gear select movement did not exist in the process of gearshift and it could make upshift and downshift happened in the same time. The 3~4 gearshift time was controlled at 120 ms when the rotary speed difference was 500 r/min and the moment of inertia was 0.03 kg·m2. The shifting quality of AMT was improved and could be further improved in the future. The results showed that the shifting mechanism of automated manual transmission based on electromagnetic linear actuator could achieve the functional of automatic shift, and it had well application prospect in the field of automatic transmission.

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李波,常思勤,林樹森.電磁執(zhí)行器直接驅(qū)動的AMT換擋機構(gòu)[J].農(nóng)業(yè)機械學報,2013,44(10):29-35. Li Bo, Chang Siqin, Lin Shusen. Shifting Mechanism of AMT Direct Driven by Electromagnetic Linear Actuator[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(10):29-35.

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  • 在線發(fā)布日期: 2013-10-14
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