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Chassis

Torque steer compensation

Torque steer compensation is a new electromechanical power steering function for front-wheel drive vehicles.

It prevents uneven tracking when vehicles with powerful engines and different drive shaft lengths accelerate.

The different length drive shafts that are normally used with transverse engines and front-wheel drive have

different working angles which cause different moments around the vertical axis of the wheels during acceleration.

These moments can cause uneven tracking that is automatically compensated by the electromechanical

power steering.

Electromechanical steering with axis-parallel drive

An electromechanical steering system with a belt-driven recirculating-ball gearbox and electric motor mounted

parallel to the axis is being used for the time on the Tiguan (left-hand drive only). This new development allows jolt-

free and very sensitive, precise and powerful steering. Familiar functions like straight-running correction and

counter-steer support have been integrated.

You will find further information on this topic in self-study programme 399 “Electromechanical Power

Steering with Parallel Axis Drive”.

Torsion bar

S404_029

Steering pinion

Steering moment sender

Control unit

Recirculating-ball gearbox

Electric motor
(mounted parallel to axis)

Belt drive

S404_028

Different

working angles

Small moment around
vertical axis of wheel

Large moment around

vertical axis of wheel

Содержание Tiguan 2008

Страница 1: ...Service Training Self study Programme 404 The Tiguan 2008...

Страница 2: ...off road front bumper with 28 approach angle will make the Tiguan a success among customers The name has already caused quite a sensation 350 000 readers of Germany s AutoBild magazine chose the name...

Страница 3: ...3 In Brief 4 Body 10 Occupant Protection 18 Engines 20 Transmission 23 Chassis 24 Electrical System 32 Radio Telephone and Navigation 36 Heating and Air Conditioning 44 Contents...

Страница 4: ...act SUV The production at Auto 5000 GmbH ranges from body assembly through the paint shop to assembly The latest in manufacturing and logistics processes have proven themselves since the start of prod...

Страница 5: ...time build an internationally competitive car The subsequent success has proven that the idea and Auto 5000 GmbH were right More than 750 000 Tourans have already left the factory A decisive factor fo...

Страница 6: ...different approach angles On road version at 18 Off road version at 28 Electromechanical steering with parallel axis drive Park Assist Brakes with off road functions B pillar with 2 rigidity zones Tyr...

Страница 7: ...noramic sunroof You will find information on the panoramic sunroof in self study programme 400 The Golf 2007 Chassis Mechanical swivelling tow coupling Electromechanical parking brake with planetary g...

Страница 8: ...ed manual gearbox 0A6 4Motion Length 4427mm Width 1809mm Height 1686mm Wheelbase 2604mm Track width at front 1570mm Track width at rear 1570mm Weights further data 2 0l 103kW CR TDI engine Track Field...

Страница 9: ...mm 375mm 343mm 693mm 1019mm 381mm S404_012 847mm 735mm 771mm 2086mm 1053mm S404_013 S404_011 Interior dimensions and volumes depending on equipment and position of rear seat bench depending on equipme...

Страница 10: ...llenge The high standards reached are reflected in the excellent static and dynamic stiffness and thus in the lightweight construction quality Lightweight construction quality L 2 4 e g Golf 2004 L 2...

Страница 11: ...hed 1000MPa B pillar The special feature of the B pillar is that it is made from one part but has two rigidity zones The upper part has a very high strength for extreme loads due to partial die quench...

Страница 12: ...bstacles and steep banks to be tackled on uneven terrain without damaging the front end The wheel housing liners and front modules are adapted to the respective bumper versions New body features Off r...

Страница 13: ...lts that are used for correct fitment Threaded bush for correct fitment Door concept The front and rear doors have a conventional door design and are made up of a basic door unit and a bolted assembly...

Страница 14: ...older Storage compartments in dash panel insert as well as under front seats Storage compartments in the front door panels for large format road atlases and drinks holders for up to 1 5l bottles Stora...

Страница 15: ...rgo management system for storing a wide range of items Bins in the rear door panels and drinks holders for up to 1 5l bottles Cup holders in through load facility Roof console with glasses compartmen...

Страница 16: ...is mounted behind the rear bumper and is also simple to use when the vehicle is fully loaded Depending on the engine the Tiguan has a towing capacity of up to 2500kg up to 12 gradient Body Mechanical...

Страница 17: ...be either manually locked in the rest or working position The tow coupling locks into one of the end positions with a clearly audible locking noise LED display for end positions In addition to the lo...

Страница 18: ...senger airbag Driver and front passenger seat belt warning light Belt tensioners and belt force limiters for the front seats Optional rear side airbags in conjunction with belt tensioners for the oute...

Страница 19: ...rbag control unit in the front area of the frame tunnel with three internal acceleration sensors two sensors in vehicle longitudinal direction and one in transverse direction as well as four external...

Страница 20: ...d to the requirements of the Tiguan Petrol engine 1 4l 110kW TSI engine with 4 valve technology 2 0l 103kW CR TDI engine with 4 valve technology Diesel engine 6 speed manual gearbox 0A6 4Motion 6 spee...

Страница 21: ...irements High pressure fuel pump with a delivery pressure of up to 130bar Technical data Engine code BWK Type 4 cylinder in line engine Displacement 1390cm3 Bore 76 5mm Stroke 75 6mm Valves per cylind...

Страница 22: ...ion cooling Technical data Engine code CBAB Type 4 cylinder in line engine Displacement 1968cm3 Bore 81mm Stroke 95 5mm Valves per cylinder 4 Compression ratio 16 5 1 Maximum output 103kW at 4200 rpm...

Страница 23: ...models The pressure being built up with an electric pump is a new feature The four wheel drive control unit J492 determines the torque to be transferred by controlling the coupling opening control val...

Страница 24: ...lf and Passat Rebound bump stop dampers at front Overview of chassis Electromechanical steering with parallel axis drive and torque steer compensation The ESP sensor unit is integrated in the electrom...

Страница 25: ...nt chassis versions depending on the equipment version The comfort oriented normal chassis features in the Trend Fun and Track Field equipment versions The sportier dynamic chassis is fitted in the Sp...

Страница 26: ...stop dampers have oil holes that allow the damper oil to escape and create a hydraulic damping effect Front axle The front axle uses a McPherson concept with lower wishbones and spring struts The subf...

Страница 27: ...pshaft rear axle differential and the drive shafts are simply omitted and the wheel bearings for the front wheel drive version are fitted Rear axle The rear axle of the Tiguan is based on the four lin...

Страница 28: ...ing with axis parallel drive An electromechanical steering system with a belt driven recirculating ball gearbox and electric motor mounted parallel to the axis is being used for the time on the Tiguan...

Страница 29: ...area to be improved considerably without using a complex knee airbag Also the locking mechanism and thus the closing force for the steering column lock has been revised for easier use The Tiguan steer...

Страница 30: ...escent assist Adjustment of accelerator pedal characteristics EDL adaptation ABS adaptation Auto hold function manual gearbox Gear level preselect automatic gearbox ESP and hydraulic brake assist BA a...

Страница 31: ...sed Intervention by the hill descent assist system is cancelled or interrupted as soon as one of the following conditions is met Off road button pressed or new ignition cycle Gradient less than 12 Acc...

Страница 32: ...mpartment Fuse boxes and relay locations in the onboard supply Pre fuse box on left in the engine compartment Relay carrier under dash panel on left above the onboard supply control unit Relay carrier...

Страница 33: ...33 Fuse box on onboard supply control unit under dash panel on left S404_006...

Страница 34: ...CAN data bus Electrical System Networking concept Legend Powertrain CAN data bus Convenience CAN data bus Infotainment CAN data bus Sensor CAN data bus Combi CAN data bus Diagnostics CAN data bus b a...

Страница 35: ...it J400 Wiper motor control unit J412 Mobile telephone operating electronics control unit J446 Parking aid control unit J492 Four wheel drive control unit J500 Power steering control unit J503 Control...

Страница 36: ...with receivable stations from the FM and AM wavebands Radio systems in the Tiguan Two or four loudspeakers with up to 20 Watt output can be connected Treble bass and balance sound adjustments a fader...

Страница 37: ...l features Touch sensitive 6 5 TFT colour display with a resolution of 400 x 240 pixels Twin tuner for FM TP and RDS reception Integrated aerial diversity for two aerials AM reception Two or four loud...

Страница 38: ...display MFD with a resolution of 800 x 480 pixels Output stage with 4 x 20 Watt output two or four loudspeakers can be connected RDS FM and AM Europe radio FM twin tuner with internal diversity SDARS...

Страница 39: ...ia the Tiguan roof aerial External blocking circuits or impedance transformers used in the aerial system in the rear window are not required Aerial set up for RCD 510 Since the RCD 510 uses the twin t...

Страница 40: ...er operation in the FM range will be used in addition to the roof aerial AM and FM reception as well as the signals for the navigation system GPS and the telephone GSM are received via the roof aerial...

Страница 41: ...d the remote control for the auxiliary heating FFB for example to be received via an aerial for the corresponding vehicle systems When the roof aerial was developed we considered it particularly impor...

Страница 42: ...you can leave the authorised mobile phone in your jacket pocket for example Hands free function in good audio quality configured for the vehicle Telephone book downloaded from mobile phone Support for...

Страница 43: ...ment due to the omission of the mobile phone cradle Solutions from car accessory retailers are required for this The UMPP Premium Light is always combined with the multifunction steering wheel in the...

Страница 44: ...tic 2C Climatronic heating and air conditioning system Air conditioning Operation Depending on the vehicle equipment there are two different versions of the control units With or without instant heat...

Страница 45: ...the upper part of the engine compartment This makes them easier to access when work needs to be carried out on the condenser Furthermore the dryer cylinder can be replaced without the condenser being...

Страница 46: ...46 Notes...

Страница 47: ...47...

Страница 48: ...ights to make technical alterations reserved 000 2812 04 20 Technical status 10 2007 Volkswagen AG Service Training VSQ 1 Brieffach 1995 38436 Wolfsburg This paper was manufactured from pulp that was...

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