Vehicle, in particular an all-wheel drive vehicle, with a first steered vehicle axle and a second steered vehicle axle

Abstract

An all-wheel drive vehicle with two steered vehicle axles. Each having a main steering cylinder with piston rods actively connected with the wheels. The main steering cylinders each have first and second chambers ( 30, 31 ) delimited by at least one piston element ( 34, 35 ) which moves longitudinally in the cylinder and is connected to the piston rod ( 28 ), such that adjusting pressure in the cylinder with an electric control unit, biases the piston elements and the piston rods to achieve specified wheel steering angles. Furthermore, a third chamber ( 32 ), which can be pressurized, is provided between a first and a second piston element ( 34, 35 ) of a main steering cylinder ( 26 ), which respectively delimit the first and second chamber ( 30, 31 ). The piston rods are sectioned, such that a first section is connected to the first piston element and a second section is connected to the second piston element.

Description

technical field [0001] The invention relates to a motor vehicle of the type defined in detail in the preamble of claim 1 , in particular an all-wheel drive motor vehicle, having a first steerable vehicle axle and a second steerable vehicle axle. Background technique [0002] In practice, motor vehicles are known in particular as all-wheel drive vehicles, for example so-called telehandlers or telescopic trucks, which are preferably designed as construction vehicles. Such vehicles must be maneuvered in very small spaces due to their often confined positions on the construction site. [0003] For this reason an attempt is made to obtain the smallest possible turning circle for such cars. For this purpose, the motor vehicle is equipped with two vehicle axles which can be steered, for example by means of knuckle steering or turntable steering, wherein a larger wheel steering angle is required for switching the required steering of the vehicle. [0004] It has the disadvantage t...

AI Technical Summary

Problems solved by technology

[0004] Disadvantageously, in off-road vehicles with a shorter wheelbase, the steering angle error increases with an increased wheel steering angle

An increase in the steering angle error is of course undesirable, since with the presence of the steering angle error there can be slippage on the wheels, which leads to higher tire wear

This is a big disadvantage, especially in off-road vehicles, because of the high costs associated with installing new tires

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