All-wheel 360-degree steering unmanned platform vehicle

Abstract

The invention discloses an all-wheel 360-degree steering unmanned platform vehicle. The unmanned platform vehicle is composed of a chassis, a suspension mechanism, an interconnection mechanism, a steering mechanism and a driving mechanism. The suspension mechanism is composed of an upper pull rod, a lower pull rod and a shock absorber, the interconnection mechanism is composed of a left interconnection guide rod, a right interconnection guide rod, a left triangular rod, a right triangular rod and an interconnection spring, the steering mechanism is composed of a support, a steering motor, a steering shaft, a steering arm, a steering knuckle and the like, and the driving mechanism is composed of a hub, a hub motor, a brake disc and a brake caliper. The driving mechanism is connected with the steering mechanism and connected with the chassis through the suspension mechanism. The front steering mechanism and the rear steering mechanism in the advancing direction of the unmanned platform vehicle are interconnected through an interconnection mechanism. Each wheel of the unmanned platform vehicle can be independently driven and braked, 360-degree steering is achieved through a steering motor, and driving, braking and steering are all linearly controlled; meanwhile, suspension interconnection can be achieved, high maneuvering performance and driving stability are achieved, and universality is high.

Description

technical field [0001] The invention relates to the technical field of transportation machinery, in particular to an unmanned platform vehicle with all-wheel 360-degree steering. Background technique [0002] In recent decades, with the continuous development of automobile technology, autonomous driving technology has become an emerging research hotspot in intelligent transportation systems to reduce traffic problems. And due to the needs of energy saving and emission reduction, electric vehicles are becoming more and more popular. At present, the driving method of automobiles still uses a single engine or a single electric motor as a power source, which is transmitted to each driving wheel of the automobile through a mechanical transmission system. The power distribution depends on the mechanical transmission mechanism, and it is impossible to accurately control the driving force of a single wheel. The steering mode of existing automobile generally adopts front-wheel four-...

AI Technical Summary

Problems solved by technology

This steering method is simple in principle and mature in technology, but it is easy to damage the lateral steering mechanism in the middle and high-speed driving conditions of the car, and there is a problem that the guide bar is stuck due to large lateral force; and because the rear wheels do not actively deflect, resulting in The steering radius of the rear wheels is too large, and the steering flexibility is very low, which may easily cause traffic accidents

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