Speed ​​limiting method and device for construction machinery

Abstract

The invention provides a speed-limiting method of construction machinery and a speed-limiting device of construction machinery, which belong to the field of construction machinery. The speed limiting method of the construction machinery includes: obtaining fault description information corresponding to the fault state of the construction machinery; obtaining the fault weight value corresponding to the fault description information from the semantic search expert database; Corresponding relationship, determining the vehicle speed limit value corresponding to the fault weight value corresponding to the fault description information. In the expert database, the present invention evaluates, calculates and matches the abnormal state of the vehicle, confirms the current weight, and then outputs the corresponding speed limit value according to the corresponding relationship between the weight value and the speed limit, so as to realize the automatic speed limit under the abnormal state and further reduce the It improves the driver's self-judgment of the abnormal state of the vehicle, and limits the speed of the vehicle in the abnormal state.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a speed limiting method for engineering machinery and a speed limiting device for engineering machinery. Background technique [0002] When construction machinery is in some special states such as some special steering modes or its own heavy state or rigid state, it is necessary to limit the speed of the vehicle for the sake of vehicle safety. The effective speed limit of vehicles plays an important role in vehicle safety. The current construction machinery mainly controls the speed limit of the vehicle by selecting the current state through the switch, without considering other factors that affect driving, and the driving safety needs to be improved; for example, the current suspension system of the vehicle is abnormal, but the power system and transmission system are normal, which does not affect the vehicle Driving, drivers who are not familiar with the vehicle ignore the...

AI Technical Summary

Problems solved by technology

The current construction machinery mainly controls the speed limit of the vehicle by selecting the current state through the switch, without considering other factors that affect driving, and the driving safety needs to be improved; for example, the current suspension system of the vehicle is abnormal, but the power system and transmission system are normal, which does not affect the vehicle Driving, the driver who is not familiar with the vehicle ignores the abnormal state of driving. If the vehicle continues to drive, especially when the vehicle is overweight, it will seriously affect the safety of the vehicle.

[0003] At present, large-tonnage truck cranes mainly use the driver to actively select the switch according to the current vehicle state or the required state of the vehicle. The speed limit value of the vehicle is determined by the switch state to ensure the safety of the vehicle. The control system does not consider other factors that affect driving, nor does it The relevant speed limit strategy is realized purely by subjective operation

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