Tracked traveling vehicle control method, device and hydrostatically driven tracked traveling vehicle

Abstract

Embodiments of the present invention disclose a control method and device for a crawler traveling vehicle, and a hydrostatically driven crawler traveling vehicle. The method for controlling a crawler traveling vehicle includes: acquiring the distance value of the crawler chain plate of the current crawler traveling vehicle, and collecting the traveling speed value and the engine speed value of the current crawler traveling vehicle during the traveling operation of the current crawler traveling vehicle; The distance value of the crawler chain plate and the travel speed value determine the frequency information of the crawler chain plate pressing on the ground, and the fluctuation amplitude value and the fluctuation frequency value of the engine speed within a preset time length are determined according to the engine speed value; according to the crawler belt The information on the frequency of pressing the link plate to the ground, the fluctuation amplitude value and the fluctuation frequency value determine the flameout prevention control parameters of the current tracked vehicle. The technical solutions of the embodiments of the present invention can effectively prevent the whole vehicle from shaking during the running process of the crawler traveling vehicle, improve the walking comfort of the crawler traveling vehicle, and reduce the fuel consumption at the same time.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of vehicle control, and in particular, to a control method and device for a tracked traveling vehicle, and a hydrostatically driven tracked traveling vehicle. Background technique [0002] With the continuous improvement of China's productivity, crawler vehicles in construction machinery are developing in the direction of comfort, efficiency and economy. Compared with traditional crawler vehicles, electronically controlled hydrostatic drive bulldozers have the advantages of simple and comfortable operation, and their control strategies have the advantages of preventing With the flameout function, the driver of the tracked vehicle does not need to frequently shift gears to avoid engine flameout. [0003] During the bulldozing operation of the tracked vehicle, when the anti-flame function controls the traveling speed of the tracked vehicle to reach a balance with the soil depth or bulldoz...

AI Technical Summary

Problems solved by technology

[0003] During the bulldozing operation of the tracked vehicle, when the anti-stall function controls the speed of the tracked vehicle to reach a balance with the depth of the soil or the load of the bulldozer, or the tracked vehicle slips and is in the slipping state of the limit value of the anti-stall control When the crawler structure is a non-continuous rib structure, it will cause the crawler vehicle to walk or slip, the resistance of the ground to the crawler vehicle will produce a change frequency that has a clear relationship with the crawler structure, and then cause the engine speed of the crawler vehicle to At this time, the anti-flameout function of the tracked vehicle controls its speed fluctuation, thus amplifying the vibration phenomenon of the tracked vehicle, and also affecting the anti-flameout control of the tracked vehicle

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