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Video History-Suspension 1
Video History-Suspension 2
Video History-Suspension 3
Video History-Suspension 4
Video History-Suspension 5
Video History-Suspension 6
Video History-Suspension 7

Video Undercarriage 1
Video Undercarriage 2
Video Steering Wheel 1
Video Steering Wheel 2
Video Steering Lock
Video Steering
Video Safety Steering
Video Rack Pinion Steering
Video Steering Ratio 1
Video Steering Ratio 2
Video Steering Ratio 3
Video Ball Steering
Video Worm Roller Steering
Video Hydraulic Power Steer. 1
Video Hydraulic Power Steer. 2
Video Electr. Power Steer. 1
Video Electr. Power Steer. 2
Video Electr.-hydraulic Pump
Video Torque (power steer.)
Video Electr. Stab. Program
Video Finger Steering
Video One-piece Track Rod
Video Four Wheel Steering 1
Video Four Wheel Steering 2
Video Four Wheel Steering 3
Video Dry Joint
Video History
Video Suspension control 1
Video Wheel positions
Video Suspension
Video Spring systems
Video Electr. Air Suspension
Video Center of Gravity
Video Oblique/lateral drift angle
Video Elasto-kinematics
Video Elk Test
Video Wheel Bearing 1
Video Wheel Bearing 2
Video Wheel Bearing 3
Video Wheel Bearing 4
Video Ind. pulse sensor
Video Wheel sensor 2
Video Transversal Axis
Video Suspension Carrier
Video Below View
Video Adj. suspension
Video Stabilizer 1
Video Stabilizer 2
Video Double-wishbone 1
Video Double-wishbone 2
Video Double-wishbone 3
Video Air suspension truck
Video McPherson Strut 1
Video McPherson Strut 2
Video McPherson Strut 3
Video McPherson Strut 4
Video Trailing Arm
Video Twist-beam Rear Axle
Video Space Arms
Video Multilink Axle
Video Semi-trailing Arm Axle
Video Rear-wheel Drive
Video Electr. Stab. Program
Video ABS/ESP-Hydr. Unit
Video One-arm Swing. Fork
Video Formula-3 Racing Car
Video Pend. Wheel Suspen.
Video Torson Crank Suspen.
Video DeDion Axle 1
Video DeDion Axle 2
Video Rigid Axle 1
Video Rigid Axle 2
Video Rigid Axle 3
Video Rigid Axle 4
Video Rigid Axle 5
Video Self steering axle
Video Track rod joint
Video Springs
Video Coil Spring 1
Video Coil Spring 2
Video Coil Spring 3
Video Leaf Spring
Video Torsion Bar Spring
Video Rubber Suspension
Video Hydropn. Suspension
Video Air Suspension 1
Video Air Suspension 2
Video Shock Absorber 1
Video Shock Absorber 2
Video Shock Absorber 3
Video Shock Absorber 4
Video Shock Absorber 5
Video Single-tube Damper 1
Video Single Tube Damper 2
Video Double-tube Damper
Video Shock Absorber Piston
Video Friction Absorber
Video Tyres
Video Wheel Positions

Video Tyre Calculation
Video Inch -> mm
Video Slip
Video Axle Load Distrib.
Video Payload Distrib.
Video Roller Resistance 2

Video Wheel suspension 1
Video Wheel suspension 2
Video Wheels 1
Video Suspension 1
Video Suspension 2
Video Suspension 5
Video Steering 1
Video Steering 2

          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Variable Steering Ratio


This is the first time that the driver notices, that the control over the steering wheel has been taken from him. A control device now decides, whether the steering wheel movement is transferred directly to the front wheels or whether a weakened- or a strengthened movement is carried out. In this case e.g., a greater steering ratio during fast motorway driving and also a smaller ratio when driving slowly in urban areas, would be possible. This construction could of course, also be used for every possible steering action e.g., with ESP. A vehicle may one day appear, which is artificially kept on the road, even if the driver is distracted. It can also no longer be predicted, with any certainty, whether in ten years time, all cars will even still have a steering wheel, or whether the systen will be re-constructed, because more than a three-quarters of a turn will never be necessary any more.


The above shown system is combined with hydraulic power-steering. For the future, it's possible, and more than likely, that there will be a purely electric steering support. In front of the pinion that engages with the gear rack, there will be a planet gearbox built into the steering column. In addition, the ring-gear which has somewhat sloping outside teeth, into which an electric motor engages, similar to a worm-drive. If its movement is precisely combined with that of the steering wheel, it can strengthen the steering angle for a more direct steering or weaken it for a more indirect steering. All it has to do is to turn the ring-gear in one direction or the other. The planetary gearbox is a perfectly normal part the steering ratio. In the event of a malfunction, the electric motor stands still and provides for an average ratio. Through the worm-drive and thus, the self-braking, it cannot be moved.


In 2006, the first vehicle with independent reverse parking was introduced. The display indicates whether or not the parking slot is big enough. After engaging the reverse gear, the vehicle steers itself into the optimum position in one action. The driver only needs to regulate the driving speed. 08/12               Top of page               Index
2001-2015 Copyright programs, texts, animations, pictures: H. Huppertz - E-Mail
Translator: Don Leslie - Email:

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