Pre-detection active leveling system and leveling method for agricultural vehicle working platform

Abstract

The invention relates to a pre-detection active leveling system and leveling method for an agricultural vehicle working platform, and belongs to the technical field of vehicle platform leveling. The pre-detection active leveling system includes a platform, a cross universal joint, a base, a vehicle body, a suspension, wheels, a distance measuring sensor, a vehicle body tilt sensor, a platform tiltsensor, a platform tilt adjustment mechanism, a platform pitch adjustment mechanism and a central processor. In the walking operation process of an agricultural vehicle, the vehicle body tilt sensorperiodically measures the pitch angle and the roll angle of the vehicle body, and the distance measuring sensor periodically synchronous measures relative height information of the ground in front ofthe wheels, and calculates the pitch angle and the roll angle change amount of the vehicle body at the next moment, obtains the linear displacement adjustment amount of the platform tilt adjustment mechanism and the platform pitch adjustment mechanism under the condition of maintaining the platform level, the two adjustment mechanisms complete the predetermined linear displacement adjustment in the adjustment period, and the pre-detection active leveling of the agricultural vehicle working platform during the walking is achieved.

Description

technical field [0001] The invention belongs to the technical field of vehicle platform leveling, and relates to a pre-detection active leveling system and a leveling method for an agricultural vehicle operation platform. 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, there is a problem that complex terrain changes such as hills and basins will cause large changes in the pitch angle and roll angle of the vehicle body. , resulting in large fluctuations in the operating effect of the working parts on the vehicle operating platform or body; therefore, certain leveling technical measures need to be taken to keep the working parts on the vehicle operating platform or body level within a certain tolerance range, so that To ensure the operation quality of working parts, the common technical measures for dynamic leveling of agricultural vehicles mainly inc...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pre-detection active leveling system and leveling method for the agricultural vehicle operation platform, which can 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 realize the walking operation process of agricultural vehicles Pre-detection and active leveling of the vehicle operating platform; by detecting the relative height information of the ground in front of each wheel, the change in the pitch angle and roll angle of the vehicle body at the next moment is calculated, and the pitch angle of the platform is obtained in advance under the condition of maintaining the level of the vehicle operating platform. and the linear displacement adjustment amount of the roll angle adjustment mechanism, so that the pitch angle and roll angle of the platform can be adjusted a certain period of time in advance, and the active leveling of the vehicle operation platform in the operation of agricultural vehicles in complex terrain such as hills and basins can be realized.

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