Speed limiting method and device for engineering machinery

Abstract

The invention provides a speed limiting method of engineering machinery and a speed limiting device of the engineering machinery, and belongs to the field of engineering machinery. The speed limiting method of the engineering machinery comprises the following steps: acquiring fault description information corresponding to a fault state of the engineering machinery; acquiring a fault weight value corresponding to the fault description information from a semantic search expert database; and determining the vehicle speed limit value corresponding to the fault weight value corresponding to the fault description information according to the corresponding relationship between the fault weight value and the vehicle speed limit value. The abnormal state of the vehicle is evaluated, calculated and matched in the expert database, the current weight is confirmed, and the corresponding speed limit value is output according to the corresponding relation between the weight and the speed limit, so that the automatic speed limit in the abnormal state is realized, the self-judgment of a driver on the abnormal state of vehicle driving is further reduced, and the whole vehicle running speed of the vehicle in an abnormal state is limited.

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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