High-speed agricultural vehicle platform pre-detection active leveling system and leveling method

Abstract

The invention relates to a high-speed agricultural vehicle platform pre-detection active leveling system and leveling method, and belongs to the technical field of vehicle platform leveling. The high-speed agricultural vehicle platform pre-detection active leveling system includes a platform, a bracket, bases, a vehicle body, suspension brackets, wheels, a distance measuring sensor, a vehicle bodytilt angle sensor, a platform tilt angle sensor, a bracket tilt angle adjustment motor, a platform tilt angle adjustment motor and a central processor. In the process of walking operation of an agricultural vehicle, the vehicle body tilt angle sensor periodically reads the pitch angle and the roll angle of a vehicle body, and the distance measuring sensor periodically and synchronously measures the relative height information of the ground in front of the wheels, calculates the variable quantity of the pitch angle and the roll angle of the vehicle body at the next moment and pre-acquires theangle adjustment amount of the bracket tilt angle adjustment motor and the platform tilt angle adjustment motor under the condition of maintaining the platform level, and the two tilt angle adjustmentmotors complete the predetermined angle adjustment in an adjustment period, and realizes pre-detection active leveling of the platform of the agricultural vehicle during the walking operation.

Description

technical field [0001] The invention belongs to the technical field of vehicle platform leveling, and relates to a high-speed agricultural vehicle platform pre-detection active leveling system and a leveling method. Background technique [0002] In my country, hills and basins occupy a large area of ​​crop planting land. When agricultural vehicles travel on hills, basins and other terrains, complex terrain changes such as hills and basins will cause large changes in body roll angle and pitch angle. , resulting in large fluctuations in the operating effect of the working parts on the vehicle platform or body; therefore, certain leveling technical measures need to be taken to keep the working parts on the vehicle platform or body level within a certain tolerance range, so as to ensure the work The working quality of components, common technical measures for dynamic leveling of agricultural vehicles mainly include vehicle platform leveling and vehicle body leveling. [0003] Bot...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-speed agricultural vehicle platform pre-detection active leveling system and leveling method to solve the problem of large changes in the pitch angle and roll angle of the vehicle body caused by complex terrain changes such as hills and basins, and to realize the agricultural vehicle walking operation process Pre-detection and active leveling of the medium vehicle platform; by detecting the relative height information of the ground in front of each wheel, the change of the pitch angle and roll angle of the vehicle body at the next moment is calculated, and the pitch angle and side angle of the platform are obtained in advance under the condition of keeping the vehicle platform level. Adjust the amount of inclination angle, so that the pitch angle and roll angle of the platform can be adjusted a period of time in advance, and the active leveling of the vehicle platform can be realized in the high-speed operation of agricultural vehicles in complex terrain such as hills and basins

Images