Steering systems for vehicles and universal transport vehicles

Abstract

The invention relates to a steering system for a vehicle comprising at least three steerable wheels (9, 12). A selectively activatable operating element (22) is provided, the activation of which triggers one of the following functions: - an actuation of the steering target value generator (19) leads to a rotation of the steering polar axis (A) about a center of rotation (Q) of the steering polar axis; - the steering polar axis (A) is rotated about the center of rotation (Q) in a specified rotational direction for the duration of the activation; - the steering polar axis (A) is rotated about the center of rotation (Q) in a specified rotational direction by a specified angle; or - the steering polar axis (A) is rotated about the center of rotation (Q) in a specified rotational direction into a specified angular position.

Description

Steering systems for vehicles and universal transport vehicles technical field The invention relates to a steering system for a vehicle with at least three steerable wheels and a steering target value generator for steering the wheels by means of a steering program, wherein the axes of the wheels are aligned when driving in a curve The steering pole is shifted along the steering pole axis by actuating the steering setpoint generator. The invention also includes a universal transport vehicle with such a steering system. Background technique A universal transport vehicle with such a steering system is known, for example, from WO 01 / 70556 A1. In this vehicle, the steering program, also called "all-wheel steering", can be changed during driving to a second steering program, also called For "diagonal steering". When actuating the steering target value generator, the steered wheels are steered during all-wheel steering in such a way that their axes of rotation always intersec...

AI Technical Summary

Problems solved by technology

The prior art cited above has the disadvantage that at least two proportionally active operating elements are required for the driver during driving operation (steering target value generator and control in WO 01 / 70556 A1, in In the case of EP 1 657 149 B1 steering target value generator and two additional operating elements), there are several input degrees of freedom, and when undesired, partly difficult to controllable driving situations are to be avoided, such a vehicle Steering requires significant practice and requires significant concentration in day-to-day operation

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