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A Fault Detection Method for Vehicle Lateral Power Remote Measurement and Control System

A technology of remote measurement and control and fault detection, which is applied in the direction of test/monitoring control system, general control system, control/regulation system, etc.

Active Publication Date: 2019-04-26
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims to solve the fault detection problem of the networked vehicle lateral power remote measurement and control system formed by the TCP type transmission protocol

Method used

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  • A Fault Detection Method for Vehicle Lateral Power Remote Measurement and Control System
  • A Fault Detection Method for Vehicle Lateral Power Remote Measurement and Control System
  • A Fault Detection Method for Vehicle Lateral Power Remote Measurement and Control System

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Experimental program
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Embodiment Construction

[0080] The present invention will be further described below in conjunction with the accompanying drawings.

[0081] figure 1 It is a schematic diagram of the kinematics of the lateral power system of the vehicle in the present invention, and the specific steps are as follows.

[0082] first step:

[0083] Select the vehicle side slip angle and angular velocity as the state variables, and the steering angle as the input variable, and the state space model is given as follows:

[0084]

[0085] in

[0086]

[0087]

[0088] where m represents the total mass, v ref is the warp velocity, C αV , C αH are the front and rear cornering stiffnesses of the vehicle, I Z Indicates the rotational inertia on the Z axis, l V , l H represent the distances from the center of gravity to the front and rear axles, respectively.

[0089] Step two:

[0090] The sensor output matrix C is given as follows:

[0091]

[0092] let v ref =50m / s, and the sampling time is set to 0....

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Abstract

The invention relates to the field of system fault detection, in particular to a fault detection of a vehicle lateral power remote measurement and control system. The following steps are taken: establish the state space model of the remote measurement and control system of vehicle lateral dynamics; use Bernoulli random variables to describe the characteristics of data packet loss in multi-measurement channels under the TCP protocol; express the quantization error of the channel by a logarithmic function; For the measurement value of packet loss and quantization error, design the fault detection filter based on the observer to generate residual error; use the data packet information in the intermittent measurement value, define the index based on the generalized transfer function operator, and maximize the index; through the solution The modified Riccati equation is used to obtain the filter parameter matrix; the value of the residual evaluation function is calculated, and the decision logic is set to realize fault detection. The invention can realize the fault detection of the vehicle transverse power remote measurement and control system with data packet loss and quantization error under the TCP protocol, and improves the reliability of detection.

Description

technical field [0001] The invention relates to the field of dynamic system fault detection, in particular to a fault detection method for a vehicle lateral power remote measurement and control system. Background technique [0002] At present, the detection of vehicle comprehensive performance is only in the state of manual or semi-automatic detection. With the development of network technology and measurement and control technology, the network-based vehicle remote measurement and control system plays a very important role in improving the overall detection technology level. Its biggest feature is that it is far away from the scene. , Save manpower, high detection efficiency, accurate detection results. [0003] Due to the introduction of the network as a transmission medium in the measurement and control system, in practical applications, the sensor output is intermittent and contains various forms of interference. Within a certain time interval, data packets may be diffi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/0243G05B2219/24065
Inventor 李岳炀王中华张永良郑建敏王灿
Owner UNIV OF JINAN