investigation of the steering geometry according to Ackermann

Description:

• When it comes to steering, the entire vehicle’s wheel should be exactly on a circular path.
• To achieve this, the extensions of all the axles must intersect at the centre of the circle (Ackermann’s steering principle).
• This requires that the wheel inside of the curve drives more than the wheel outside of the circle.
• This is approximately achieved with a steering trapezoid, comprising an axle, a track rod and two track-rod arms on the wheels.
• The KI 160unit can be used to study a steering trapezoid.
• The experimental unit comprises two track rods with drag link, two track-rod arms and two steering pins, where, in theory, the wheels are attached.
• The length of the axis corresponds to the distance between the steering pins.
  The lengths of the two track rods are independently adjustable.
• To set the zero position of the steering angle, the mechanism is fixed via a lock on the drag link.
• The steering angle on the inside wheel is set; the angle of the outside wheel changes according to the geometry and is read.
• The difference between the two angles is the lead angle or relative steering angle.
• The difference between the calculated and measured steering angles is the steering error.
• Disadvantages of an incorrectly set track rod can be demonstrated.
• The elements are mounted on a base plate, which can also be mounted on a wall.

Technical Details:

Specification:

• investigate a steering trapezoid
• investigate the steering geometry according to Ackermann
• adjustment of the track rod lengths
• read the steering angle on the scales
• adjustment of the zero position of the steering angle by locking the mechanism
• adjustment of the steering angle of the inside wheel
• 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 & Weight:

• L x W x H: 620x280x60mm
• Weight: approx. 6kg

Learning Objections/Experiments:

• verifying Ackermann’s steering principle
• calculate the wheelbase
• determine the lead angle and the steering error

Scope of Delivery:

• 1 kinematic model
• 1 set of instructional material

Accessories:

• Optional: WP 300.09Laboratory trolley

Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated on this Website.