Steering method for an articulated four-wheel drive chassis

Abstract

The invention discloses a steering method for an articulated four-wheel-drive chassis. The articulated four-wheel-drive chassis includes an articulated frame formed by two brackets. Walking wheels, the four walking wheels on the two supports are located in the same plane, the hinge axis of the two supports coincides with the intersection point of the two diagonals of a hypothetical rectangle, and the four traveling wheels on the two supports are respectively located in the hypothetical On the four corners of the rectangle, the articulated four-wheel drive chassis also includes a steering drive assembly for driving the two brackets to rotate relative to each other. The steering method is to control the steering by combining the driving of the steering drive assembly and actively adjusting the rotation speed of each walking wheel, so that the instantaneous steering origin of the articulated frame is located on a straight line passing through the articulated axis and perpendicular to the forward direction. The invention has good driving flexibility , Simple and compact structure, easy to manufacture, low cost, stable and reliable work, precise steering path and other advantages.

Description

technical field [0001] The invention relates to the technical field of vehicle engineering, in particular to a steering method for an articulated four-wheel drive chassis. Background technique [0002] With the support of national policies, new energy vehicles have developed rapidly in recent years. However, most traditional farmland operation vehicles are heavy in weight and high in power consumption, and do not have the conditions for full electrification. However, in fields such as live broadcasting and plant protection, due to the small size and low power consumption of the operating machinery, they have the potential to be fully electrified. [0003] Due to its large steering angle, the articulated body has obvious advantages in driving performance compared with traditional wheeled tractors in the complex driving environment in the south. In recent years, farmland work vehicles based on articulated bodies have also emerged in an endless stream. However, the existing ar...

AI Technical Summary

Problems solved by technology

However, the existing articulated body has disadvantages such as complex structure, poor stability, and the inability to ensure an accurate steering path when turning.

In addition, in the fields of live broadcasting and plant protection, the existing articulated body is not purely electric drive control, and it is difficult to realize automatic driving or remote control

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