路虎揽胜3 Chassis Systems （CN）.ppt

1、Range Rover Sport,揽胜运动版,Chassis Systems,Workbook section 2 Pages 1 - 122,底盘,工作簿 第二部分 1 122页,本部分由上海世贸黄中笑翻译,Agenda,Areas to be reviewed:Chassis systems overview Chassis changes Suspension component changes Dynamic Response system Brembo brakes Steering assembly changes.,日程安排,内容：底盘概揽 底盘改进 悬挂部件改进 动态反馈系统

2、 Brembo制动 转向总成的改进,Chassis Overview,Chassis Construction Modified Discovery 3 chassis Body mount dampers fitted To improve vehicle comfort / refinement while retaining sports handlingSuspension System Changes in suspension components to enhance handling characteristics Stiffer bushes, modified front

3、control arms, modified wheel knuckles Hardware geometry revised to provide cornering characteristics expected of a sports vehicle Four corner air suspension as standard Changes in air suspension operation.,底盘概览,底盘结构 改进后的Discovery 3底盘系统 安装于车身上之减震 提升舒适性/ 兼顾操控运动与驾乘的优越悬挂系统 改进的悬挂部件提高了操控特性 强化了的村垫, 改进了的前控制

4、臂和转向节 几何结构之调整为该款车提供了运动转向特性 标配的四轮空气悬挂 空气悬挂的改型.,Chassis,Dynamic Response Completely new system: quieter, faster and more refined than previous Also improves on-road and off-road performanceBraking System Brembo brakes on the front axle for enhanced braking efficiencySteering System Speed proportional,

5、 variable ratio steering gear - allows low-speed agility, and stability during high-speed cruisingWheels and Tires New range of wheels and tires including two 20” size.,底盘,动态反馈 全新系统: 安静, 迅捷, 精准 公路与越野表现更上一层制动系统 前轴上安装的Brembo制动器提升了制动效能 转向提供 按车速比例而不同比率的转向系统 低速时轻快,高速稳定 轮辋和轮胎 包括20”的新轮辋和轮胎,Chassis Construc

6、tion,底 盘 结 构,底盘（发现3）小影片,Chassis Construction,This area 6 inches shorter Low speed agilityTwo body mount dampers at the front,底盘结构,该处缩短6英寸 低速轻快前部之2个车身安装减震,Chassis Construction,Two body mount dampers at the rear,底盘结构,后前部之2个车身安装减震,Chassis Construction,Front body mount damper,底盘结构,前部安置 车身之减震,Chassis Con

7、struction,Rear body mount damper,底盘结构,后部安置 车身之减震,Chassis Construction,Body mount dampers designed to prevent body vibration/oscillationBolted at the front to the tire blocker and the body, near row 2 body mountBolted at the rear to the chassis and the body, near to row 5 body mount4 body mount dampe

8、rs in total.,底盘结构,安置于车身之减震设计用意在于防止车身震摆 以螺栓固定在前部轮胎限位与车身之上,靠近第2排车身固定点 以螺栓固定在后部底盘与车身之上,靠近第5排车身固定点 共计4个车身安装减震器.,L320 front bumper,Removable panel,Panel removed showing snatch recovery loop,L320 前防撞器,保险杠护皮,拆下护皮后可见拖车钩,L320 rear bumper,Removable panel,Panel removed showing snatch recovery loop,L320 后防撞器,保险

9、杠护皮,拆下护皮后可见拖车钩,Suspension System,Workbook section 2 Pages 9 - 17,悬 挂 系 统,工作簿 2部分 9 - 17 页,Suspension System,Front stabilizer bar assembly Revised routeDiameter increased to 31mmStabilizer links connect to upper control arm Handed design Upper joint is radial Hardened steel washer Larger fixing point

10、.,悬挂系统,前稳定杆系 改进的工作轨迹直径加大至 31mm稳定连接杆连接到上控制臂 左右之分的设计 上部径向球头连接 强化钢垫 更宽的固定面,Suspension System Service Point,Note: Hardened washer must be installed correctlyWasher installed due to increased tightening torque compared to Discovery 3.,悬挂系统 维护要点,注意: 强化的钢垫必须正确安装安装该垫时与Discovery 3相比应增加预紧扭矩,Suspension System-

11、 FUCA,Front Upper Control ArmCast Design What was Discovery 3 ? Discovery 3 was a split steel pressing fabricationWhy Change To Cast Design? Increased loads Changes in geometry Revision provides handling characteristics expected of a sports vehicle.,悬挂系统- FUCA,前部上控制臂浇铸设计 Discovery 3是如何 ? Discovery 3

12、是钢拼压加工而成为何要改成浇铸? 增加负合能力 几何结构改变 改变提供了该款车运动性的操控特性,Suspension System - FUCA,Front Upper Control ArmLonger ball joint pin (9mm) For geometry revisionsStiffer Bushes Revised to provide handling characteristics expected of a sports vehicle.,悬挂系统- FUCA,前部上控制臂 更长的球头销 (9mm) 因几何尺寸变化强化的村套 该改变提供了该款车运动性的操控特性.,Su

13、spension System - FLCA,Front Lower Control ArmShorter ball joint pin (3mm) For road wheel clearanceStiffer Bushes Revised to provide handling characteristics expected of a sports vehicle.,悬挂系统- FLCA,前部下控制臂更短的球头销 (3mm) 因离地间隙强化的村套 改变提供了该款车运动性的操控特性.,Suspension System - Knuckle,Front Wheel KnuckleUpper

14、and Lower pivot point distance increased Longer than Discovery 3 Why Increase Length? Changes in geometry.,悬挂系统- 转向节,前转向节上下铰接点距离变大 长于 Discovery 3 为何增加距离? 几何尺寸变化.,C of G,RC,C of G,RC,C of G,RC,Rear Suspension,Workbook section 2Pages 19 - 26,后 悬 挂,工作簿 2部分 19 26页,Suspension System,Rear stabilizer bar a

15、ssembly Diameter increased to 23mmConnect to lower control armStabilizer links 15 mm shorter than Dynamic Response system Identified by white plastic ball joint caps.,悬挂系统,后稳定杆总成 直径加大到 23mm连接在下控制臂上稳定连接吊杆比带动态反馈系统的短15 mm 经球头的白色的塑料盖区分.,Suspension System - RUCA,Rear Bush Cross axis joint replaces rear b

16、ushFront Bush - Stiffer Revised to provide handling characteristics expected of a sports vehicle.,悬挂系统- RUCA,后部村套 轴线相交的连接点更换了后边的村垫前部村套- 强化 改变提供了该款车运动性的操控特性,Suspension System - RLCA,Front Bush - Stiffer Revised to provide handling characteristics expected of a sports vehicleRear Bush Same as Discover

17、y 3.,悬挂系统- RLCA,前村套 强化 改变提供了该款车运动性的操控特性后村套 同 Discovery 3.,Rear Bush Clip - Removal,Bush Clips Deleted,Front Bush Clips DeletedRUCA and RLCABushes Stiffer Clips were originally installed for bush compliance,后村套卡 取消,村套卡取消,前村套卡取消RUCA and RLCA强化村套 卡子原本为村套的柔性而装,Suspension System Rear Knuckle,Rear Wheel K

18、nuckleSlight geometry differences Same bushes / ball joints as fitted to Discovery 3.,悬挂系统后轮毂,后轮毂几何尺寸略有不同 与安装在Discovery 3上的村套与球头相同,Suspension System,Range Rover Sport four corner air suspension as Discovery 3 except:Mono tube damper For improved handling and body control Improved high speed dampingD

19、ifferent air spring and damper assemblies between vehicles with or without Dynamic ResponseNo coil spring option available.,悬挂系统,揽胜运动版四柱气簧同Discovery 3除:单筒式减震 提升驾驭和车身控制性能 提高了高速下的减震效能不同空气弹簧和减震用于有/无动态反馈的配置车型无弹簧减震的可选件.,Suspension System,Range Rover Sport Service Note? If the Dealer thinks he has a leaki

20、ng air spring he should contact the LR helpdeskLR helpdesk may then give the dealer authority to install a gaitor, similar to that fitted to the rear air damper assemblyThe leaking air spring must be returned to LR for investigationLR help desk will have to have engineering consent before giving the

21、 dealer authority to fit the component.,悬挂系统,揽胜运动版维护注意点? 经销商若考虑气簧漏气, 应该联系LR helpdeskLR helpdesk可授权其换防尘罩同样适用于后减震器漏气的气簧必须归还LR作进一步检测 LR help desk 将有可能需要征询工程师的同意才能授权更换该气簧.,Suspension System,Vehicle Speed Lowering - Range Rover SportOperates after 5 seconds of driving at 100 mph Reduces height by 20mm Im

22、proves high speed handling No instrument display warning for the driver Rises again after driving 80 mph for 30 seconds Function cancelled if trailer socket connected.,悬挂系统,车速降低 揽胜运动版在达到100 mph5秒后进行调控 车身可最多降低 20mm 提升高速操控性能 仪表中无显示警告信息 车速低于80 mph约30秒后,车身升高 拖车套连接后该项功能取消,Suspension System,Different air

23、suspension control units Range Rover Sport e.g. with or without Dynamic ResponseAir suspension control unit Contains software for Servotronic transducerModified Discovery 3 air harnesses Due to shorter chassis.,悬挂系统,揽胜运动版不同的气簧 例如 有无动态反馈系统气簧控制单元 包括软件 for Servotronic 转换器改进 Discovery 3 的空气线路 因较短的底盘.,Su

24、spension System,Additional heat shielding Range Rover SportShorter pipes,悬挂系统,揽胜运动版额外的隔热壳管路更短,Height Sensors Range Rover Sport New installation for front height sensors New sensor lever and drop link Common front sensor Left to Right Rear sensors carry over Discovery 3 Output voltage = 0.5v to 4.5v

25、All four corners to 0.5v with bump travel. End of section.,Suspension System,揽胜运动版高度传感器 前高度传感器的新安装点 新的传感器杠杆和下垂杆 左右通用 后传感器借用 Discovery 3 输出电压 = 0.5v to 4.5v 4个气簧极限压缩的电压到0.5v 该部分告一段落,悬挂系统,Dynamic Response (Active Stabilization System),Workbook section 2Pages 68 - 91,动态反馈 (主动稳定系统),工作簿 2部分 68 91页,Dynami

26、c Response,Standard on all vehicles fitted with 4.2 SC engineOptional line fit as part of Dynamic Pack on remainder of model rangeDynamic pack consists of: Dynamic Response system Front Brembo brakes.,动态反馈,配4.2 SC 发动机的运动版标准配备 在其他配置的揽胜运动版部分动态组件 选装 动态组件包括: 动态反馈系统 前Brembo制动,Dynamic Response,Dynamic Res

27、ponse is an evolution of the roll control system previously used It is not the sameDesigned to reduce vehicle roll Prevents roll from cornering forces up to 0.4g From 0.4g progressive increase in body rollEnhances on road comfortEnhances off road abilityNo driver interface controls.,动态反馈,是在旧款车的车身防倾斜

28、系统上演变过来的 不相同的设计目的在于降低车身倾斜 防止车身倾斜至0.4g 自0.4g起渐进使车身倾斜提升道路舒适性提升越野性能无须驾驶员介入操作.,Dynamic Response,Main Enhancements:Roll bar assembly completely new designReduction in weightQuieter, more refined systemSystem response time improved.,动态反馈,主要提升在于:防滚杆总成全新设计重量减轻轻而精准的系统系统反应时间加快.,Dynamic Response,Body Angle Pas

29、sive stabilizer Bar,Body Angle Dynamic Response System,动态反馈,车身角度 被动式稳定杆,车身角度 动态反馈系统,Dynamic Response,Body Angle Passive stabilizer Bar A - Direction of travel R/H bend B Body roll C Drive line roll D Tyre squash E Dampers F Body roll angle G Drive line roll angle H Direction of stabilizer bar twist,

30、动态反馈,车身角度 被动式稳定杆 A 行进方向 右转 B 车身倾斜 C 驱动桥倾斜 D 轮胎侧压 E 减震 F 车身倾斜角 G 驱动桥倾斜角 H 稳定杆扭转方向,Dynamic Response,Body Angle Passive Stabilizer Bar,动态反馈,车身角度 被动式稳定杆,Dynamic Response,Body Angle Dynamic Response System,动态反馈,车身角度 动态反馈系统,Dynamic Response,Body Angle Dynamic Response System A Direction of travel R/H bend

31、 B Body roll C Drive line roll D Tyre squash E Stabilizer bar F Direction of stabilizer bar twist G Dampers H Drive line roll angle I Reduced body roll with Dynamic Response system,动态反馈,车身角度 动态反馈系统 A 行进方向右转 B 车身倾斜 C 驱动桥倾斜 D 轮胎侧压 E 稳定杆 F 稳定杆扭转方向 G 减震 H 驱动桥倾斜角 I 动态反馈系统减少了车身倾斜,Dynamic Response,Body Ang

32、le Passive stabilizer Bar,Body Angle Dynamic Response System,动态反馈,车身角度 被动式稳定杆,车身角度 动态反馈系统,Dynamic Response - Components,1,2,3,4,5,6,7,8,Reservoir Pump Lower Accelerometer Valve block Rear actuator Upper Accelerometer Control Module Front actuator.,动态反馈部件,1,2,3,4,5,6,7,8,储液罐 泵 低位加速度感应器 阀体总成 后部执行器 高位加

33、速度感应器 控制模块 前部执行器.,Dynamic Response - Components,ReservoirNon serviceable filter assembly fitted to the baseCapacity of the reservoir to the maximum mark is 0.5 litre (0.13 gal)Dynamic Response system uses same fluid as used on PAS system Texaco 14135Total capacity of system is 2.5 litres (0.66 gal).

34、,动态反馈部件,储液罐不可维护式空气滤请固定于底部储液罐最大储液刻度 0.5 litre (0.13 gal)动态反馈系统同的油液动力转向系统 Texaco 14135系统总工质 2.5 litres (0.66 gal).,Dynamic Response Pump,Driven at approximately 1.7 times crankshaft speedWhy was 1.7 chosen? Ensures fluid availability at all times,Flow,RPM,动态反馈泵体,运转速度相当于曲轴的 1.7倍为何要选择 1.7倍? 确保全时供液量,流量,R

35、PM,Dynamic Response - Components,Radial pump with 8 pistonsHow many pistons previous system? Previous pump had 6 pistonsWhat benefits gained by more pistons? More pistons less work per cylinder Provides NVH improvementChamber incorporated into the rear of the pump assembly What is chamber for? Chamb

36、er to reduce pulsations for further NVH enhancements.,动态反馈部件,8活塞的离心泵以前的系统有几个活塞? 过去的有 6活塞更多的活塞起何作用? 多活塞减少各缸的做功 提高NVH性能空腔与泵体总成复合在一起 空腔起何作用? 减少脉动进一步提高NVH,Dynamic Response - Components,Total Displacement (8 pistons) 12 liters per minutePump differs between petrol and diesel variants Port arrangementsOpe

37、rating Pressure: 165 bar 2248 Ibf/in.,动态反馈部件,全部冲程 (8 个活塞) 12 liters汽/柴油不同 出油口位置工作压力: 165 bar 2248 Ibf/in.,Dynamic Response - Components,Dynamic Response Valve BlockControlled by the Dynamic Response control moduleConcept as previous system: More compact NVH improvement.,动态反馈部件,动力反馈阀体总成由动力反馈模块控制理念同以前

38、系统: 更紧凑 NVH性能高.,Dynamic Response - Components,2 directional control valves Control the direction of flow to the actuators Coils, caps and O-rings serviceable1 pressure control valve Controls the hydraulic pressure supplied to the actuators Coil, cap and O-ring serviceable.,动态反馈部件,2 方向控制阀 控制油液流向各执行器

39、弹簧,封盖和O形环可换1 压力控制阀 控制至执行器液压 弹簧,封盖和O形环可换.,Dynamic Response - Components,1 pressure transducer Pressure Range 0 to 180 bar 0 to 2610 Ibf/in Serviceable itemHigh pressure filter Serviceable item If system has a component failure filter must be replaced.,动态反馈部件,1 压力感应器 压力范围 0 to 180 bar 0 to 2610 Ibf/in

40、 可换件高压滤清器 可换件 系统如果出问题,该件需要更换,Dynamic Response - Components,Actuators And Stabilizer BarsRota linear ball screw assembliesMore compact compared with previous actuator assemblies.,动态反馈部件,执行器和稳定杆Rota线型滚珠式螺旋总成较以前的系统紧凑.,Dynamic Response - Components,Improved off road performanceSystem uses input signals

41、from vehicle speed and accelerometersDecouples for improved articulationLocked bars for side slopes of more than 11.,动态反馈部件,提高越野性能系统用车速和加速信号作为输入耦合解除提高车辆铰接性能超过 11的斜坡时杆系锁止,Dynamic Response - Components,Locked bars when reverse selectedSystem uses ABS information as primary signal for direction of trav

42、elAlso uses reverse gear selection as reference.,动态反馈部件,倒车时杆系锁止系统的运动方向的信号主要源于ABS讯号倒挡选择信号也将作为参考信号,Dynamic Response - Components,Front Actuator, Stabilizer Bar And LinkActuator and stabilizer bar supplied as complete unit Requires splitting on removal? MUST install 6 new retaining bolts on reconnectio

43、n? Stabilizer bars 34 mm in diameter.,动态反馈部件,前部执行器,稳定杆和连接杆前部执行器和稳定杆整体提供 要求分解后拆装? 必须安装6个新的螺栓 稳定杆直径34mm,Dynamic Response - Components,Note: Stabiliser link hardened washer must be installed correctlyWasher installed due to increased tightening torque when compared to Discovery 3.,动态反馈部件,注意: 稳定杆连接杆强化垫片

44、一定要正确安装较Discovery 3而言垫片安装意味着增加预紧扭矩,Dynamic Response - Components,Rear Actuator And Stabilizer BarActuator and stabilizer bar supplied as complete unitStabiliser links 15 mm longer than passive system Identified by dark grey plastic bearing capsDoes not require splitting on removal.,动态反馈部件,后执行器和稳定杆执行

45、器和稳定杆整体提供稳定杆连接杆较被动式系统长15 mm 由黑灰的塑料轴承盖区分不要求分解拆除.,Dynamic Response - Components,Air bleed ports Piston Ball Screw Stabilizer bars.,动态反馈部件,排气孔 活塞 滚珠螺旋装置 稳定杆.,Dynamic Response - Components,动态反馈部件,Dynamic Response - Components,动态反馈部件,Dynamic Response - Components,System Pipes Reservoir to pumpFront pipe

46、set (x4) All 4 available as single componentsRear pipe set (x2) Both available as single componentsPump outlet to pressure line A faulty pipe is replaced as a complete pipe as there are no service kits planned Do not clamp pipes as damage will occur.,动态反馈部件,系统管路 储液壶到管路前油管组件 (x4) 4个前油管可单独定货后油管组件(x2)

47、2个后油管可单独定货泵出口到高压管 因无规划中的可换部件,因无规划中的可换部件,管路失效应整体更换 勿夹紧管路,可能会导致损坏发生.,Dynamic Response - Components,Dynamic Response Control ModuleAlways located on the driver side lower A postCommunicates on high speed CAN busControls the Dynamic Response systemStores fault codes.,动态反馈部件,动态反馈控制模块在驾驶员侧的 A柱下以高速 CAN bus

48、通讯控制动态反馈控制系统保存故障码.,Dynamic Response - Components,Communicates on HS CAN bus with:Steering angle sensor Vehicle direction Improves response timeABS ECU Vehicle speed Vehicle direction Yaw rate signalTCM Gear position.,动态反馈部件,以 HS CAN bus通讯:转向角度传感器 车辆行进方向 提高反应时间ABS ECU 车速 车辆行进方向 横摆率传感器TCM 档位.,Dynamic Response - Components,ECM Engine speed signal Signal for pump runningAir suspension control module Ride height loweringTransfer box control module Range selected Different strategy.,动态反馈部件,ECM 发动机转速信号 油泵转速空气悬挂控制模块 高度降低分动箱控制模块 档位 不同策略.,Dynamic Response - Components,