基于液压制动补偿的后轮驱动车辆能量回收控制研究

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中图分类号:TP273+3;U463.5 文献标志码:A DOI:10.20104/j.cnki.1674-6546.20250205

Research on Energy Recovery Control for Rear-Wheel-Driven Vehicles Based on Hydraulic Brake Compensation

ZengKe,CaiXu,ChenYongbao,XieWen,ZhangMing,ZhangYa (VOYAHAutomobileTechnologyCo.,Ltd.,Wuhan430051)

【Abstract】To addressissues such asregenerative torque attenuation,rear-wheel slip loss of control and sudden decelerationchanges associated with existingsingle-pathenergyrecoverystrategiesbasedonbraking undercomplexoperating conditions,suchas fullbaterycharge,lowtemperaturesandlow-adhesionroadsurfaces.This paper proposesacordinated control architecture basedondynamiccompensationof hydraulicbraking force.Bydevelopingadual-lop controlmodel combiningfeedforwardandfedbackforslipatiomanagement,therear-whelslipratioispreciselystabilizedwithinthesafe range of 8% 14% .Aninnovativeelectric-hydraulic braking force coupling algorithm is designed to dynamically convert the reducedregenerativebraking forceattherearaxleinto hydrauliccompensationatthefrontaxle,resulting ina54.7%reduction in peak yawratewhencoasting intosharp turnsonlow-adhesion surfaces.Furthermore,amulti-conditioncoordination strategyisdeveloped tomaintaindecelerationconsistencyunderfull-chargeandlow-temperaturescenarios,ffectively eliminating abnormal creeping phenomena during Drive-to-Reverse gear shifts.

Key words:Regenerative braking coordination, Slip ratio control,Hydraulic compensation, [ransient response, Vehicle stability

1前言

随着电动汽车渗透率的持续提升,能量回收已成为提高车辆续驶里程的重要技术之一。(剩余6672字)

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