四驱系统评价的车辆试验程序

Vehicletestprogrammefor： 四驱系统评价的车辆试验程序IIIevaluationof4WDdrivelinesystemIITRACTION :牵引力Accelerationonhomogeneousmid-,low-“)（high-,：均匀附着率

Accelerationonhomogeneousmid-,low-“)（high-,：均匀附着率

:率）面加速试验（高、中、低附着Procedure ；步骤I

IAcceleratefromstandstillwithWOT(Wide：全负荷或最佳驾驶状态起步加速OpenThrottle)oras“Driver’sBest”;Requiredinstrumentation-Requiredinstrumentation-SideshafttorqiiesT-Longitudinalaccelerationa—Lateralaccelerationay-Steeringangle-Steeringtorqi^ilfavailable)-Awrate//-4wheelspeedywfr、vr、vrr-Vehiclespeed,vveh需使用仪器（获得的数据）-侧轴扭矩Ts-纵向加速度ax-横向加速度ay-转向角a-转向扭矩Tst（如可行）-偏摆率//-四轮轮速vf、vfr、vr、vrr-车辆行驶速度vvehEvaluationEvaluationAccelerationtimes(0toxkm/h)-Averageacceleration-Responsetimes(ifapplicable)-Stability、(a、Tst、//=f(t))-Torquedistributionfront/rear=f(t))-Stabilityfeel(subjectiverating)；Controllability(subjectiverating)::评价-加速时间（0-xkm）h-平均加速度-响应时间（如可用）-稳定，性（ay、a、Tst、//=f（t）-前后扭矩分配二f（t）-稳定性感受（主观）-可操纵性（主观）Accelerationonsp]dt-不同附着率Accelerationonsp]dt-不同附着率面加速试验Procedure ;步骤IIAcceleratefromstandstillwithWOT(Wide：全负荷或最佳驾驶状态起步加速OpenThrottle)oras“Driver’sBest”：- — IIIRequiredinstrumentation ；需使用仪器(获得的数据)II-SideshafttorqiiesT ； -侧轴扭矩Ts-LongitudinalaccelerationaLateralaccelerationay-Steeringangle-Steeringtorgiig(ifavailable)-Awrate//-4wheelspeedyvvfr、vr?vrr-Vehiclespeed,vvehEvaluationAccelerationtimes(0toxkm/h)-Averageacceleration-Responsetimes(ifapplicable)-Stability,(a、Tst、//=f(t))-Torquedistributionfront/rear=f(t)-Stabilityfeel(subjectiverating)-Controllability(subjectiverating)AccelerationonspJdtgradientProcedureAcceleratefromstandstillas“Driver’sBest”onvariousgradients,e.g.5%,10%,15%RequiredinstrumentationSideshafttorqusesT-LongitudinalaccelerationaLateralaccelerationay-Steeringangle-Steeringtorqiyt(ifavailable)-Awrate//-4wheelspeedyvvfr、vr、vrr-Vehiclespeed,vvehEvaluationAccelerationtimes(0toxkm/h)-Averageacceleration-Responsetimes(ifapplicable)-Stability、(a、Tst、//=f(t))Torquedistributionfront/rear=f(t)Stabilityfeel(subjectiverating)Controllability(subjectiverating): -纵向加速度ax: -横向加速度ay: -转向角a: -转向扭矩Tst; -偏航率/: -四个车轮轮速vfl、vfr、vrl、vrr: -车辆行驶速度vvehII"平价II: -加速时间（0-xkm）h: -平均加速度: -响应时间（如可用）: -稳定，性（ay、a、Tst、//=f（t）: -前后扭矩分配二f（t）: -稳定性感受（主观）: -可操纵性（主观）II:不同附着率坡道加速试验II:步骤II:以最佳驾驶状态（“riversBest”）在不同斜度:的路面起步加速，如5%,10%,15%:需使用仪器（获得的数据）II: -侧轴扭矩Ts: -纵向加速度axx: -横向加速度ay: -转向角a: -转向扭矩Tst（如可行）: -偏航率/: -四个车轮轮速vfl、vfr、vrl、vrr: -车辆行驶速度vvehI:评价-加速时间（0-xkm）h-平均加速度-响应时间（如可用）（ifapplicable-稳定性（ay、a、Tst、//=f（t）-前后扭矩分配二f（t）-稳定性感受（主观）-可操纵性（主观）-Hillclimbingabilitypercentagefgradient -爬坡能力（车辆刚好能爬上的坡道百whichvehiclejustcanclimb)Accelerationom-transitionwhichvehiclejustcanclimb)Accelerationom-transitionProcedureAcceleratefromstandstillwithoneaxleonlow-mandtheotheraxleonhigh-mwithWOToras“Driver’sBest”(inawaythattheaxleonhigh-mhasmaximumdistancetotravelonthissurface).: 分比）II:变附着率路面加速试验II:步骤II:一根轴在低附着率路面、另一根轴在高附着率:路面上起步加速全负荷或最佳驾驶状态（以高:附着率路面上的轴在这种表面行驶的最大距:离的方法）Requiredinstrumentation-Requiredinstrumentation-SideshafttorquesT-LongitudinalaccelerationaLateralaccelerationay-Steeringangle-SteeringtorqiigTfavailable)-Awrate//-4wheelspeedyvvfr、vr、vrr-Vehiclespeed,vvehEvaluationAccelerationtimes(0toxkm/h)-Averageacceleration-Responsetimes(ifapplicable)-Stability,(a、Tst、//=f(t))-Torquedistributionfront/rear=f(t))-Stabilityfeel(subjectiverating)；Controllability(subjectiverating):IIICIRCLETESTS ::需使用仪器（获得的数据）II: -侧轴扭矩Ts: -纵向加速度axx: -横向加速度ay: -转向角a: -转向扭矩Tst（如可行）: -偏航率//； -四个车轮轮速vfl、vfr、vrl、vrr: -车辆行驶速度vvehI"平价I -加速时间（0-xkm）h-平均加速度-响应时间（如可用）-稳定，性（ay、a、Tst、//=f（t）-前后扭矩分配二f（t）-稳定性感受（主观）-可操纵性（主观）环形试验Steadystatecornering :稳态回转I

I

IProcedure :步骤I

IDriveonconstantradiuswithaspeedrange在稳定工〉兄下，从“刚开始转动”到最大可能from“ustrollingtothemaximumspeed：的速度范围在恒定的半径上行驶。逐渐增大速possibleunderstableconditionsIncreasethe；度（纵向加速度很小），根据车辆情况通过调speedgradually（longitudinalhceleratienery整方向盘角度保持车辆在恒定的半径上（类似small）andkeepthehicleonaconstraidtius稳态回转）。

byadjustingthteeringwheelangleaccordingthevehicls’behavior(“uas”steadystatecornering). :RequiredinstrumentationRequiredinstrumentation-SideshafttorqiiesT-Longitudinalaccelerationa-Lateralaccelerationay-Steeringangle-Steeringtorqiyt(ifavailable)-Awrate//-4wheelspeedywfpvr、vrr-Vehiclespeed,vveh-throttlepositionsEvaluation-Self-steeringbehaviour:需使用仪器（获得的数据）I_ —I: -侧轴扭矩Ts: -纵向加速度ax: -横向加速度ay: -转向角a: -转向扭矩Tst（如可行）: -偏航率/: -四个车轮轮速vfl、vfr、vrl、vrr: -车辆行驶速度vveh: -节气门位置sThI:评价II: -自转向行为LfttartlAo«*l«ration%■“/丹—七LfttartlAo«*l«ration%■“/丹—七L "25,7m/SV(h=92,BWnE。-郭普岛骂^L«t»r«lAood«rat^on%.“/R —■J■厂R■J氏g.依■*25,7rh/Sv（h-W,5km/nEG=般&岛岑产-Characteristics

circleradius)pge#v(a*R)1/2-Characteristics

circleradius)pge#v(a*R)1/2(withR=-SelfsteeringgradientEG=(5H(1o)/10*i(withi=steeringratio) :s-Max.corneringspeedand/ormax.lateralacceleration :I-Swimangle。=f危) ：-Steeringtorqute=TfL® ;-特征速度vch=（q*R）1/2（其中R=回转半径）-坡道自动转向EG=5H（10）/10*i（其中4=转向比）-最大回转速度和/或最大横向加速度-浮渡角度。二f隔）—转向扭矩Tst=fLaaThrottle-offfromsteadystatecornering从稳态回转开始加速(节气门关闭)Procedure ；步骤Driveonconstantradiuswithconstantspeed,在限定的转向速度下，以恒定的速度、恒定的constantangleandconstantthrottlpositioiat；转向角度、恒定的节气门开度行驶。然后突然corneringspeedlimit.Thensuddenlyrelle释放茄气门，对车辆的反应不做校正，即“开throttlanddonotcorrecfbrvehiclereaction环控制”i.e.“penLoopControlRequiredinstrumentation-SideshafttorquesTRequiredinstrumentation-SideshafttorquesT-Longitudinalaccelerationa-Lateralaccelerationay-Steeringangle-Awrate//-4wheelspeedywfpvr、vrr-Vehiclespeed,vveh-throttlepositions需使用仪器（获得的数据）-侧轴扭矩Ts-纵向加速度ax-横向加速度ay-转向角a-偏航率/-四个车轮轮速-车辆行驶速度%、v、v、vflfrrlrrvveh-节气门位置sThEvaluation例如：例如：I-Vehicletrajectoi(curveofCoG(Centreof；Gravity)) ;Example: :

-车辆轨迹（重心曲线）-而rate//=f(t)-Relativeyawangle虬]=f(t)withthe!followingdeterminatio/rofMeasuredParameters:YawAngleSpeed/[°/s]YawAngleSpeedatInitiationoftheMa/oeuv；/®]VehicleSpeedv[m/s]veh

-偏航率//=f（t）-相关偏航角度虬广f（如下结果测量参数：*偏航角速度/[°/s]*在操控开始时的偏航角速度/[°/s]*车速vveh[m/s]*在操控开始时的车速vveh.0[m/s]CalculatedParameters: 计算参数：IReferenceRadiusofthe门站仇也r%=veh0//o \ VehicleSpeedatInitiationoftheManoeufm/svlveh.0 参考回转半径10[m] 10=*eh0//o VehicleSpeedatInitiationoftheManoeufm/svlveh.0ReferenceawAngleSpeed/.ef[°/s]哈=yeh/0r ； * 参考偏航角速度虬f[°/s]虬f=*eh /0rReferenceawAngle/°。]虬.=J/-虬.)dt : * 参考偏航角度/^=J/-虬f)dtII/]=J/-vh*/o/vh0)dt:/rel=J/-vveh/0/vveh.0)dtIIIAcceleration(throttlen)fromsteadystat4从稳态回转开始加速(节气门开启)cornering :

Procedure；步骤IIIDriveonconstantradiuswithconstantspeed,在限定的转向速度下，以恒定的速度、恒定的constantsteeringangleandconstantthrottle转向角度、恒定的节气门开度行驶。然后突然positionatcorneringspieeictThensuddenly完全踩下油门，对车辆的反应不做校正，即"开pushthethrottldownfullyrnddonotcorrect环控制”forvehiclereactions“peneLoopControl:Requiredinstrumentation :需使用仪器（获得的数据）111-SideshafttorquesT ；-Longitudinalaccelerationa ;-Lateralaccelerationa :y >-Steeringangle ；-Awrate// :1-4wheelspeedyvvfr、vr、vrr :-Vehiclespeed,v 1veh i-throttlepositions :1-侧轴扭矩Ts-纵向加速度axx-横向加速度ay-转向角a-偏航率/-四个车轮轮速vfl、vfr、vrl、vrr-车辆行驶速度vveh-节气门位置sTh1Evaluation :11评价1-VehicletrajectorycurveofCoG(Centreof: 1Gravity)) :-Awrate//=f(t) ；-Relativeyawangle/rel=f(t)(asexplainedbefore) :-车辆轨迹（重心曲线）-偏航率/=f（t）-相关偏航角度虬］=f（（同以前的例子）ABS-brakingfromsteadystatecornering；从稳态回转进行ABS制动IIIProcedure :步骤 I IIDriveonconstantradiuswithconstantspeed,在限定的转向速度下，以恒定的速度、恒定的constantsteeringangleandconstantthrottle转向角度、恒定的节气门开度行驶。然后尽可positionatcorneringspEeiitThenbrakea$能用力并且尽可能快地刹车，对车辆的反应不hardandfastaspossiblanddonotcorrectfor:做校正，即“开环控制”vehiclereactions,Op.eeLLoopControl:Requiredinstrumentation:需使用仪器（获得的数据）-SideshafttorqiiesTLongitudinalacceleraxtionaLateralaccelerationay-Steeringangle-Awrate//-4wheelspeedyvvfr、vr、vrr-Vehiclespeed,vveh11-侧轴扭矩Ts: -纵向加速度ax: -横向加速度ay: -转向角a: -偏航率//: -四个车轮轮速vfl、vfr、vrl、vrr: -车辆行驶速度vveh

-throttlepositions ；-节气门位置sTh1Evaluation :1评价1-Vehicletrajector(curveofCoG(Centreof:-车辆轨迹（重心曲线）Gravity)) ；-Awrate//=f(t) ;-偏航率//=f(t)-Relativcyawangle/<el=f(t)(asexplained-相关偏航角度虬］=f（to同以前的例before) ；11子）1HANDLING :— 11操纵性111ISO-doublelanechange ；1ISO-双车道变换11Procedure ；1步骤1Drivethroughadoublelanechangetrackbuilt以最大可能的速度在根据IS0标）隹建造的双upaccordingISO-standardwithmaximum;车道上交替行驶。possiblespeed. :111Requiredinstrumentation :1需使用仪器（获得的数据）11-SideshafttorqiiesT ;-侧轴扭矩Ts-Longitudinalaccelerationa :-纵向加速度ax-Lateralaccelerationa :y-横向加速度ayy-Steeringangle ;-转向角a-Awrate// :-偏航率/-4wheelspeedyvvfr、vr?vrr ；-四个、车轮轮速vfl、vfr、vr?vrr-Vehiclespeed,v :veh i-车辆行驶速度vveh-throttlepositions :-节气门位置sTh1Evaluation :1评价1-Awrate//=f(t) :-偏航率//=f(t)-SteeringAnghe=f(t) :-转向角a=f(t)-Delaybetween^and// ;-a和//的延迟-Subjectivestabilityrating :11-主观稳定性等级1VDA-doublelanechange(ELK-test) :1VDA-双车道变换（ELK-测试）1Procedure ' 11步骤11Drivethroughadoublelanechangetrackbuilt以最大可能的速度在根据VDA标）隹建造的双upaccordingVDA-standardwithmaximum:1车道上交替行驶。possiblespeed. ；

Requiredinstrumentation:需使用仪器(获得的数据)1-SideshafttorquesT-Longitudinalaccelerationa-Lateralaccelerationay-Steeringangle-Awrate//-4wheelspeedyvvfr、vr?vrr-Vehiclespeed,vveh-throttlepositions1: -侧轴扭矩Ts: -纵向加速度ax: -横向加速度ay: -转向角a: -偏航率/: -四个车轮轮速vfl、vfr、vrl、vrr: -车辆行驶速度vveh: -节气门位置sThEvaluation:评价1-Awrate//=f(t)-SteeringAngloe=f(t)-Delaybetween^and/-Subjectivestabilityrating1: -偏航率/=f (t): -转向角a=f (t): -a和/的延迟: -主观稳定，性等级11Step-steerinputmanoeuvre:阶段转向操作1Procedure步骤Drivevehiclewithconstantspeedof100km/h;车辆在笔直的路面上以100km/h的恒定速度onastraighline.Suddenlyturnthesteering行驶，突然转动方向盘到一个角度，该操作以wheeltoananglewhichwilhepresentlaateral后使车辆产生一个4m/s2的横向加速度。在操vehicleaccelerationof4m/浮afterthis纵过程中保持节气门开度不变。manoeuvre.Keepthrottle-positi(hroughoutIthismanoeuvre. 'Requiredinstrumentation:需使用仪器(获得的数据)1-SideshafttorquesT-LongitudinalaccelerationaLateralaccelerationaySteeringanagle-Awrate//-4wheelspeedyvvfr、vr?vrr-Vehiclespeed,vveh-throttlepositions: -侧轴扭矩Ts: -纵向加速度ax: -横向加速度avy: -转向角a； -偏航率/: -四个车轮轮速vfl、vfr、vrl、vrr: -车辆行驶速度vveh: -节气门位置sTh1Evaluation评价1-Awrate//=f(t)-Lateralacceleratei=nfa(t)-SteeringAngloe=f(t)1: -偏航率/=f(t): -横向加速度ay=f(t): -转向角a=f(t)

-Delaybetween^andW-Subjectivestabilityrating: -a和W/的延迟； -主观稳定性等级1AccelerationonaT-junction1:T型路口加速1Procedure1!步骤AcceleratefromstandstillithWOT(Wide:全负荷或最佳驾驶状态起步加速然后立即向OpenThrottleOras“Driver石est”andturn；右或向左转向(模拟从旁路进入交通拥挤的主rightorleftimmediately(simulation^an:路的加速操纵)。Iaccelerati(manoeuvrefromasideroadintoa；crossingmainroadwithheavytraffic).;Requiredinstrumentation:需使用仪器（获得的数据）1-SideshafttorqiiesT-Longitudinalaccelerationa-Lateralaccelerationay-Steeringangle-Awrate//-4wheelspeedyvvfr、vr、vrr-Vehiclespeed,vveh-throttlepositions1: -侧轴扭矩Ts: -纵向加速度axx: -横向加速度ay: -转向角a； -偏航率W: -四个车轮轮速vfl、vfr、vrl、vrr: -车辆行驶速度vveh: -节气门位置sTh1Evaluation"平价11-Accelerationtimes(0toxkm/h)-Averageacceleration-Responsetimes(ifapplicable)-Stability01,%W=f(t))-Steeringinflueng£=f(t)a=f(t)1; -加速时间（0 -x km）h: -平均加速度: -响应时间（如可用）: -稳定性（ay、a、Tst、户f（t）: -转向影响Tst=f（t）a=f（t）-Torquedistributionfront/rear=f(t)) -前后扭矩分配二f(t)-Stabilityfeel(subjectiverating)： -稳定，性感受(主观)-Controllability(subjectiverating)； -可操纵性(主观)Handling-track:轨道操纵1Procedure:步骤DriverthroughaHandling-Traclwithvarying在轨道操纵上以不同的驾驶风格行驶，如“普driving^tylei.e.fformal”driver,portydriver通”模式、运动模式等。etc.. ■Requiredinstrumentation!需使用仪器（获得的数据）1-SideshafttorqiiesT1: -侧轴扭矩Ts

-Longitudinalaccelerationa :-纵向加速度ax-Lateralaccelerationay111-横向加速度ay-Steeringangle11-转向角a-Awrate//11-偏航率/-4wheelspeedyvvfr、vr、vrr111-四个车轮轮速vfl、Vfr、Li、vrr-Vehiclespeed,vveh11-车辆行驶速度vvp.-throttlepositions1111-节气门位置sThEvaluation11111评价11-Subjectiveevaluationofoverallvehicle-在更加“实用的”状况下对车辆状）兄behavior(stabiljtyractiorNVHetc.)under；（稳定，性、牵引力、NVH等）进行全面的主more“practd”circumstances.11观评价。BRAKING :制动 IIIABSstraightlinebrakingonhomogeneous；在同一附着率(高、中、低)笔直路面上ABS以(high-,mid-,low-〃) :制动Procedure :步骤 I IIAcceleratethevehicletoaspeedof50jk将/车辆以50km/h,80km/h,100km/h,120km/h,100km/h,120km/h(ifapplicThe叫.km/h(如可行)加速。然后用力尽可能快地制brakeashardandfastaspossibl(ABSshould；动(ABS在全部4个车轮上都起作用)。变速workonallfourwheels).Repeatthetestwith：箱在空档位置重复试验。Igearboxengagedandinneutralgear.:IIRequiredinstrumentation :需使用仪器(获得的数据)I-LongitudinalaccelerationaLateralaccelerationa-LongitudinalaccelerationaLateralaccelerationay-Steeringangle-Steeringtorque(Ifavailable)-SideshafttorqueT-Awrate//-4wheelspeedyvvfr、vr、vrr-Vehiclespeed,vlvehMastercylinderbrakepressurepEvaluation