Cab active vibration reduction method and system and engineering vehicle

An active vibration reduction, cab technology, applied in vehicle seats, vehicle parts, special positions of vehicles, etc., can solve the problems of manual adjustment, uncomfortable vibration of construction vehicles, time-consuming and laborious, and achieve the effect of improving vibration comfort.
CN112124162APending Publication Date: 2020-12-25JIANGSU XCMG CONSTR MASCH RES INST LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU XCMG CONSTR MASCH RES INST LTD
Publication Date
2020-12-25

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Abstract

The invention discloses a cab active vibration reduction method and system and an engineering vehicle. The method comprises the steps that cushion and backrest vibration acceleration information and acorresponding vibration acceleration setting range are obtained, wherein the vibration acceleration information comprises a frequency peak value, pass frequency vibration and order tracking; whetherthe current cushion and backrest vibration acceleration is within the set range or not is judged; in response to the fact that the cushion and backrest vibration acceleration is not within the set range, an instruction is sent to control a proportional valve to be opened, and cushion and backrest air bag structures are inflated and deflated till the cushion and backrest vibration acceleration is adjusted to be within the set range; in the inflating process, pressure information of the cushion and the backrest air bags is obtained; in response to the fact that the pressure of the cushion and backrest air bags exceeds the corresponding upper limit values, an instruction is sent to control the proportional valve to be closed and stop inflating; in the inflating and deflating process, flow information of the cushion and the backrest air bags is obtained; and in response to the fact that the flow of the cushion and backrest air bags exceeds the corresponding limit values, an instruction issent to control reduction of the opening of the proportional valve.
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Description

Technical field

[0001] The invention belongs to the technical field of engineering machinery, and specifically relates to an active vibration reduction method and system for a cab and an engineering vehicle.Background technique

[0002] At present, construction vehicles, including excavators, road rollers, skid steer loaders, graders, etc., are widely used in construction sites such as construction, roads, mines, ports, etc. The road surface and working environment of the work site are relatively harsh. Accompanied by huge instantaneous impact, low-frequency vibration and shaking are generated. As the group of construction machinery drivers continues to expand, their requirements for the working environment are also increasing, which places higher requirements on the vibration comfort of the cab.

[0003] Due to the diversity and uncertainty of construction operations, the comfort of the cab will also change. During the long-term operation of the driver, the vibration that exceeds the limit w...

Claims

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