Semi-trailer with rear wheels capable of achieving electronic differential and reversing method

Abstract

The invention relates to a semitrailer with rear wheels capable of achieving an electronic differential and a reversing method. The semitrailer comprises an ECU, a differential knob, a visual positioning system and a front wheel power-assisted steering mechanism, and a pair of wheels at the rearmost end of the semitrailer are two electric wheels capable of being independently driven; the differential knob can input different rear wheel differential numerical values to the ECU; the visual positioning system comprises a visual identification camera installed at the rear end of the semitrailer, the ECU can receive information of the visual identification camera and generate an electronic map, a displayer is arranged in a cab of the semitrailer, and the displayer can display the reversing track of the semitrailer in the electronic map under any differential numerical value within a set range; and the ECU can calculate the corresponding front wheel deflection angle according to a differential signal and the preset rotating speed of the inner side electric wheel, and steering of the front wheel is achieved through the front wheel power-assisted steering mechanism.

Description

technical field [0001] The disclosure belongs to the technical field of vehicles, and in particular relates to a semi-trailer vehicle with rear wheels capable of realizing electronic differential speed and a reversing method. Background technique [0002] In the past ten years, with the continuous planning and construction of road facilities and the continuous increase of people's demand for many materials, the road transportation industry is in a stage of rapid development, and road transportation has gradually become an important mode of transportation. Semi-trailer trains with large transport tonnage, low transport cost and high transport efficiency have gradually occupied most of the road transport. [0003] The inventor has learned that the structure of the semi-trailer vehicle itself has the characteristics of heavy weight, high center of mass, and mutual coupling at the saddle, so that there are factors such as nonlinearity, instability, and uncertainty in the reverse...

AI Technical Summary

Problems solved by technology

Prone to dangerous situations such as folding and collision

In addition, the body of the semi-trailer train is too long and the blind spot is too large, which makes it difficult to reverse. To complete a reverse steering requires the driver to have rich driving experience and high-level driving skills.

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