Vehicle resonance detection alarming method, vehicle resonance detection alarming device, and vehicle resonance detection alarming system

Abstract

The invention provides a vehicle resonance detection alarming method, a vehicle resonance detection alarming device, and a vehicle resonance detection alarming system, and relates to the vehicle detection field. The vehicle resonance detection alarming method is characterized in that a time domain signal of vehicle frame vibration accelerated speed is acquired, and is converted into a frequency domain signal; whether a first significant peak value exists in the frequency domain signal is determined, and the signal amplitude of the first significant peak value is the signal having the signal amplitude greater than the signal amplitude mean value by the first preset multiple; when the answer is yes, the rotating speed signal of the vehicle engine is acquired, and a main order frequency of a rotating speed signal is calculated; whether the frequency of the first significant peak value is superposed with the main order frequency is determined; when the answer is yes, the resonance phenomenon of the vehicle is determined, and the alarming prompt is transmitted to the driver. The real-time analysis and determining of the whole vehicle resonance state can be carried out, and the resonance problem is found timely, and then the driver is prompted to accelerate or slow down in order to prevent the current resonance vehicle speed, and therefore the driving fatigue of the driver generated in the whole vehicle resonance state is prevented.

Description

technical field [0001] The invention relates to the field of vehicle detection, in particular to a vehicle resonance detection and alarm method, device and system. Background technique [0002] In the process of driving a vehicle, due to the unbalanced excitation of the wheels, or the poor matching of the chassis suspension system and cab suspension system, etc., when the vehicle reaches a certain speed, there will be resonance in the vertical direction of the vehicle. The occupants feel extremely uncomfortable, and even affect the reliability of the whole vehicle in severe cases. Therefore, it is necessary to detect and alarm the resonance phenomenon of the whole vehicle, so as to eliminate it as soon as possible. [0003] The existing technology mainly determines the existence of vehicle resonance based on the subjective feeling and feedback of the driver or passenger; or uses general-purpose vibration testing and analysis equipment to test and analyze the vehicle resonan...

AI Technical Summary

Problems solved by technology

[0003] The existing technology mainly determines the existence of vehicle resonance based on the subjective feeling and feedback of the driver or passenger; or uses general-purpose vibration testing and analysis equipment to test and analyze the phenomenon of vehicle resonance, which cannot be detected in real time and can be found in time. resonance problem

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