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KI 160 Kinematic model: Ackermann steering mechanism



  • Determination of the lead angle of a steering trapezoid
  • Influence of the track rod length


Technical Description

The objective of this kinematic model is to explain the special features of the Ackermann steering mechanism. The lead angle of a steering trapezoid is determined as are the disadvantages of incorrectly adjusted track rods. The units consists of two levers, an intermediate steering rod, two track rods and two track rod arms. The indicators attached to these rotate with the arms and indicate the steering angle on scales. It is possible to adjust the pointers independent of the levers. By turning an adjustment nut it is possible to change the length of the track rods. The complete arrangement is mounted on a base plate. The unit can supplied either for wall mounting or as a benchtop model.

Learning Objectives / Experiments

- Steering error as a function of the steering angle with varying steering geometry


[1] investigate a steering trapezoid
[2] investigate the steering geometry according to Ackermann
[3] adjustment of the track rod lengths
[4] read the steering angle on the scales
[5] adjustment of the zero position of the steering angle by locking the mechanism
[6] adjustment of the steering angle of the inside wheel
[7] measure the steering angle of the outside wheel

Technical Data

Track rods
- individually adjustable

Distance between the steering pins
- 465mm

Measuring range of the steering angle
- ±50°
- scale graduation: 1°

Dimensions and Weight
l x w x h : 620x280x60mm
Weight : approx. 6 kg

Scope of Delivery
1 kinematic model
1 instruction manual

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