Steering angle

The steering angle is understood to mean the mean wheel steering angle of a steered axle in the force-free state. The steering angle can therefore only be measured on the steering test bench on low-friction roller plates or determined purely kinematically with the help of computer programs. The wheel steering angle that actually occurs while driving must not be confused with the steering angle, as this contains kinematic and elastic components.

The steering angle is a function of the steering wheel angle. With a constant total steering ratio, the steering angle is the quotient of the steering wheel angle and the total steering ratio :

${\displaystyle \delta ={\frac {\delta _{H}}{i_{S}}}}$

The steering angle is used in driving dynamics to determine the self-steering gradient . In vehicles with all-wheel steering , the steering angle is the difference between the steering angles of the front and rear axles:

${\displaystyle \delta =\delta _{v}-\delta _{h}}$

The steering angle that is required to slowly negotiate a curve is referred to as the Ackermann angle . It is approximately the ratio of wheelbase and curve radius . ${\displaystyle l}$ ${\displaystyle R}$

${\displaystyle \delta _{A}\approx {\frac {l}{R}}}$

See also

• Single track model
• Steering wheel angle sensor
• Odometry

literature

• Zomotor, Adam: chassis technology: driving behavior; Vogel Buchverlag Würzburg 1987; ISBN 3-8023-0774-7

Individual evidence

1. ^ Karl-Ludwig Haken: Fundamentals of automotive engineering . 4th edition. Hanser, 2015, ISBN 978-3-446-44216-0 , pp. 251 . ( limited preview in Google Book search)