Drive-by-wire chassis system of four-wheel independent steering unmanned vehicle

Abstract

The invention belongs to the technical field of unmanned driving, and relates to a drive-by-wire chassis system of a four-wheel independent steering unmanned vehicle, which comprises a vehicle body framework, a plurality of suspension systems and a plurality of steering systems arranged below the vehicle body framework, and each suspension system corresponds to one steering system. Each suspensionsystem comprises a linear bearing mechanism, a rotary damping mechanism and a spring buffer mechanism, the two ends of each rotary damping mechanism are fixed to the vehicle body framework and the steering system respectively, and the upper end and the lower end of the spring buffer mechanism are elastically connected to the upper end of the linear bearing mechanism and the top of the steering system respectively. Movement of the steering system can be restrained through the linear bearing mechanism, so that the steering system only moves in the vertical direction, the anti-rotation effect onwheels in the damping process is achieved, and the buffer spring and the rotary damping mechanism work at the same time so as to effectively absorb energy generated by shaking of the vehicle.

Description

technical field [0001] The invention relates to the field of unmanned driving technology, in particular to a wire-controlled chassis system for a four-wheel independently steering unmanned vehicle. Background technique [0002] With the rapid development and maturity of unmanned driving technology, there are more and more researches on unmanned drive-by-wire chassis system technology solutions, but the common drive-by-wire chassis system technology is mainly based on the modification of traditional vehicle chassis, resulting in Unmanned vehicles have limited applications. [0003] A four-wheel independent drive independent steering chassis offset shaft mechanism disclosed by the utility model with the reference application number CN201820455792.5 belongs to the field of vehicle engineering. In order to solve the problems of insufficient strength of the fixed beam and small passing clearance existing in the existing four-wheel independent drive independent steering chassis, ...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a four-wheel independent steering wire control chassis system for an unmanned vehicle. The prior art does not have the technical problems of anti-rotation of the electric wheels and the inability to effectively absorb the energy generated by vehicle vibration.

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