制动盘片分离状态对制动器拖滞力矩的影响研究

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中图分类号：TH122 文献标志码：B DOI：10.19710/J.cnki.1003-8817.20240417

Researchon CaliperDragBasedonDetachedStateofBrakeDisc and Pad

PanWeizhao，Liu Huijian，Fan Yihong，Wei Chaokun （CheryAutomobileCo.，Ltd.，Wuhu241100）

Abstract：Inorderto reducebrakecaliper drag and lower power consumption of electric vehicles，VSAis used to calculatethebrake discintrusion，determine brake caliper pistonreturn，andoptimize parameters of the seal groove.At the same time，the paper proposes touse Teflon treatment technologyon the matching surfaceof the spring and friction platelug，combined with theactive returndesign of thespring plate.Through thecalculation of thevehicle braking system，it is verified thattherequired brakefluid volume meets theregulatoryrequirements.Testresults show thatthe active return front caliper seal chamfer is 1.2×37∘ ，and the rear caliper seal chamfer is 1.0×45∘ .With the Teflon process andthe active retam design ofthe spring plate，the bench test data shows thatthe front caliper drag torque is reduced by 84% and the rear caliper drag torque is reduced by 8O%，which effectively verifies the correctness of theoretical analysis.In addition，because of the reduction of drag torque the electricity consumption per 100km by （20 0.277kW⋅h ，and cost pervehicle is reducedby 416.66 RMB.

KeyWords：Drag，Powerconsumption，Intrusionvolume，Seal ringchamfer，Fluiddemand

1前言

随着新能源汽车保有量增加，电耗作为电动汽车的关键指标日益受到关注2。（剩余6434字）