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System for cloud-aid estimation of semi-trailer active suspension state, and design method

A state estimation, active suspension technology, applied in computer-aided design, calculation, special data processing applications, etc., can solve problems such as poor adaptability to random noise

Inactive Publication Date: 2017-10-13
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The traditional Kalman filter has a good effect on Gaussian white noise, but it is not very adaptable to random noise

Method used

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  • System for cloud-aid estimation of semi-trailer active suspension state, and design method
  • System for cloud-aid estimation of semi-trailer active suspension state, and design method
  • System for cloud-aid estimation of semi-trailer active suspension state, and design method

Examples

Experimental program
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Embodiment

[0064] Such as figure 1 As shown, a cloud-assisted semi-vehicle active suspension state estimation system, the system includes:

[0065] Sensor sampling unit: including the on-board sensors distributed in the front wheel suspension 11 and the rear wheel suspension 12 of the semi-vehicle active suspension, specifically, the vehicle sensor corresponding to the front wheel suspension 11 is the first vehicle sensor 21, and the rear wheel suspension 12 corresponding vehicle sensor is the second vehicle sensor 22;

[0066] Event trigger unit: including 2 event triggers, respectively the first event trigger 31 and the second event trigger 32, the 2 event triggers are respectively connected to the vehicle sensors of the front wheel suspension 11 and the rear wheel suspension 12;

[0067] Filter unit: the filter unit is set on the cloud server 6, the filter unit includes 2 filters, and the 2 filters are respectively connected to 1 event trigger through the network 5, correspondingly, ...

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Abstract

The invention relates to a system for cloud-aid estimation of a semi-trailer active suspension state, and a design method. The system comprises a sensor sampling unit, an event triggering unit and a filter unit, wherein the sensor sampling unit comprises vehicle-mounted sensors which are distributed on a front wheel suspension and a rear wheel suspension of a semi-trailer active suspension; the event triggering unit comprises two event triggering devices which are correspondingly connected to the vehicle-mounted sensors of the front wheel suspension and the rear wheel suspension; and the filter unit is disposed on a cloud server and comprises two filters which are correspondingly connected to one event triggering device by network. In the system, the vehicle-mounted sensors of the front wheel suspension and the rear wheel suspension are connected to the filters by one event triggering device to form two independent state estimation subsystems; and the two filters conduct state estimation of the semi-trailer active suspension according to sampling information of the sensors sent from the event triggering devices. In comparison with the prior art, the system provided by the invention has the advantages that reliable estimation of the automobile active suspension states can be achieved; automobile manufacture expenses can be reduced; and network communication burdens can be relieved.

Description

technical field [0001] The present invention relates to a half-vehicle active suspension state estimation system and a design method, in particular to a cloud-assisted half-vehicle active suspension state estimation system and a design method. Background technique [0002] With the rapid development of the automobile industry, people's requirements for automobile performance are getting higher and higher. Automobile suspension system is closely related to improving automobile driving comfort and safety. Automotive suspension systems generally fall into the following three categories: passive suspension systems, semi-active suspension systems, and active suspension systems. Compared to passive and semi-active suspensions, active suspension systems have great potential to reduce the impact of road input on the vehicle body. Therefore, the active suspension system has attracted the attention of domestic and foreign experts. [0003] A normal running car often requires hundre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/15G06F2119/10
Inventor 张皓郑晓园王祝萍陈启军
Owner TONGJI UNIV
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