DSP (digital signal processor) based gearbox control system

Abstract

A DSP(digital signal processor) based gearbox control system comprises an upper computer, a lower computer and executive components, wherein the upper computer is an industrial computer, the lower computer is the DSP, and the executive components comprise DACs (digital analog converters), electrohydraulic servo valves, ADCs (analog digital converters) and speed sensors; the upper computer is in communication connection with the lower computer through CAN (control area network) buses; the lower computer is connected with the DACs through data buses; the DACs are connected with the electrohydraulic servo valves through data cables; the lower computer is connected with the ADCs through data cables; the ADCs are connected with the speed sensors through data cables; and the speed sensors are mounted in the positions of transmission shafts in a gearbox. The DSP based gearbox control system is simple in structure, high in response speed and good in flexibility, time delay and jitter performance of gear shifting of a fixed shaft type gearbox of construction machinery such as a loading machine and the like can be improved, reliability and safety of the variable-speed control system are improved, and vibration and noise generated during working of the gearbox are reduced.

Description

technical field [0001] The invention relates to a gearbox control system, in particular to a DSP-based gearbox control system. Background technique [0002] With the rapid development of science and technology and the progress of society, while people have higher and higher requirements for automobile performance, the requirements for construction machinery and other heavy vehicles are also increasing. Due to the relatively harsh operating environment of construction machinery, the load on the gearbox is large, and the gear operation is heavy, which increases the fatigue of the driver. Therefore, the matching between the engine and the gearbox is very important, which also determines the performance of the loader. [0003] At present, the domestic automatic variable speed control system is still in its infancy. As the core component of the loader, the variable speed control has been affected by the technical status and cost factors in China for many years. Although many com...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a gearbox control system based on DSP, which can effectively solve the problems of low automation, slow response speed, low reliability and poor flexibility of the existing gearbox control system

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