電驅(qū)動汽車差速器失效分析及優(yōu)化研究

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中圖分類號：U469 收稿日期：2025-04-14 DOI： 10.19999/j.cnki.1004-0226.2025.06.028

Abstract：Withtherapidexpansionofthenewenergyvehiclemarketrepresentedbyelectricdrive，theproblemofdiferentialfailurehasbecomeicreasinglypromient，eriouslyectingveiclereliabilityanduserexperience.Thispaperconductsadetaldanaly sisofthefailurecaseofthediferentialofacertairandofelectricdrivevehiclerevealingtemechanismofthefilureofthedieren tialduetothelackoflubricationunderthecouplingefectofhighrotationalspeeddiferenceandlargetorque.Andbyformulatingan optimizationplanandconductingexperimentalverification，theprobleofderentialfailurewassolved.Tispractcalmethodeffec tivelyimprovesthelubricatioperformanceoftediferentialassemblyandthewearresistanceoftsparts，providingaeferecefor the research and development and optimization of similar products in electric drive vehicles.

Keywords：Electric drive vehicle;Differential;Productoptimization

1前言

差速器是汽車傳動系統(tǒng)的一個重要零部件，它將發(fā)動機(jī)的扭矩傳遞給驅(qū)動車輪，當(dāng)汽車在轉(zhuǎn)彎行駛或者不平路面上行駛時，可以使兩側(cè)車輪以不同的角速度滾動，從而保證兩側(cè)車輪與地面之間做純滾動運動，減少輪胎的磨損和動力消耗，提高汽車的通過性[1]。（剩余3017字）