CN106379323A

CN106379323A - Vehicle control system

Info

Publication number: CN106379323A
Application number: CN201610878998.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Shenzhen Innovation Import & Export Trading Co Ltd
Current assignee: Zhongshan Aoto Electronics Technology Co ltd
Priority date: 2016-10-08
Filing date: 2016-10-08
Publication date: 2017-02-08
Anticipated expiration: 2036-10-08
Also published as: CN106379323B

Abstract

The invention provides a vehicle control system. The vehicle control system comprises a contactor system, a control center, a connection system and a fault detection system, wherein the contactor system comprises a plurality of contactors; the connection system comprises a first connector and a second connector; the control center is connected with the contactor system via the first connector and the second connector and is used for transmitting control signals to the contactor system via at least one of the first connector and the second connector to control the contactors; and the fault detection system is used for diagnosing the faults of the connection system. The vehicle control system has the beneficial effect that the reliability of the system is improved.

Description

A kind of vehicle control system

Technical field

The present invention relates to technical field of vehicle control is and in particular to a kind of vehicle control system.

Background technology

The requirement to safety for the vehicle is at a relatively high.Not only during vehicle part processing but also integrated in Vehicular system Stage be required for consider vehicle reliability.Vehicle includes control unit for vehicle, for controlling the subsystem of vehicle, such as electricity Machine drive system and energy storage system.Control unit for vehicle receives the signal from subsystem, provides control signal to subsystem System, and the health status of Monitor And Control Subsystem.At present, once company between control unit for vehicle or control unit for vehicle and subsystem Connect etc. when breaking down, vehicle can not be it is anticipated that require work, and the reliability of such vehicle is very low.

Content of the invention

For solving the above problems, the present invention is intended to provide a kind of vehicle control system.

The purpose of the present invention employs the following technical solutions to realize：

A kind of vehicle control system, including catalyst system, control centre, connection system and fault detection system, described Catalyst system includes multiple catalysts, and described connection system includes the first adapter and the second adapter；Described control centre Described catalyst system is connected by the first adapter and the second adapter, control centre be used for by described first adapter and At least one of second adapter to control described catalyst to transmit control signal to described catalyst system；Described fault Detecting system is used for diagnosing the fault of described connection system.

Beneficial effects of the present invention are：The vehicle control system of setting improves the reliability of system by fault-tolerant architecture.

Brief description

Using accompanying drawing, the invention will be further described, but the embodiment in accompanying drawing does not constitute any limit to the present invention System, for those of ordinary skill in the art, on the premise of not paying creative work, can also obtain according to the following drawings Other accompanying drawings.

The structure connection diagram of Fig. 1 present invention；

Fig. 2 is the structural representation of fault detection system of the present invention.

Reference：

Catalyst system 1, control centre 2, connection system 3, fault detection system 4, data acquisition module 41, hardware controls Module 42, assessment of failure module 43, alarm display module 44, fault location module 45, fault type determining module 46, information note Record module 47.

Specific embodiment

In conjunction with following application scenarios, the invention will be further described.

Referring to Fig. 1, Fig. 2, the vehicle control system of an embodiment of this application scene, including catalyst system 1, control Center 2, connection system 3 and fault detection system 4, described catalyst system 1 includes multiple catalysts, and described connection system 3 is wrapped Include the first adapter and the second adapter；Described control centre 2 passes through the first adapter and the second adapter connects described contact Device system 1, control centre 2 is used for transmitting control signal by least one of described first adapter and second adapter To control described catalyst to described catalyst system 1；Described fault detection system 4 is used for diagnosing the event of described connection system 3 Barrier.

Preferably, when described first adapter and described second adapter do not break down, described control centre 2 is used for There is provided described control signal by described first adapter and described second adapter to described catalyst system 1 respectively.

Preferably, when one of described first adapter and described second adapter break down, in described control The heart 2 is used for contacting to described with another the described control signal of offer in described second adapter by described first adapter Device system 1.

The vehicle control system of the above embodiment of the present invention setting improves the reliability of system by fault-tolerant architecture.

Preferably, described fault detection system 4 includes data acquisition module 41, hardware control module 42, assessment of failure mould Block 43, alarm display module 44, fault location module 45 and fault type determining module 46, described hardware control module 42 and number Connect according to acquisition module 41 and assessment of failure module 43, hardware control module 42 controls connection described in multiple sensor real-time monitorings System 3, and the data of real-time monitoring is transported to assessment of failure module 43 by acquisition module, described alarm display module 44 with Assessment of failure module 43, fault type determining module 46 connect, and show malfunction, are receiving assessment of failure module 43 output Reported to the police during alarm signal and shown fault type；Described fault location module 45 connecting fault evaluation module 43 and failure classes Type determining module 46, it is analyzed processing with positioning failure sensor and inciting somebody to action by the information that assessment of failure module 43 is sent Location information sends fault type determining module 46 to.

This preferred embodiment constructs the module architectures of fault detection system 4.

Preferably, described data acquisition module 41 includes the data capture unit data amending unit being sequentially connected；Institute State data capture unit to carry out using wireless sensor network, under normal circumstances, only small part sensor node is in work State, carries out data acquisition, data collection cycle be 1s, most of sensor node in a dormant state, when assessment of failure mould During block output alarm signal, in running order sensor node sends to sensor node in a dormant state and wakes up letter Breath, sensor node in a dormant state enters working condition, and data collection cycle shorten to 0.5s simultaneously；Described data is repaiied Positive unit is used for revising the impact under non-standard condition, sensor acquisition data being brought, and introduces correction factor T₀For the standard temperature of working sensor, H₀Wet for the standard of working sensor Degree, wherein T is ambient temperature during sensor acquisition data, and H is ambient humidity during sensor acquisition data.

This preferred embodiment arranges data correction unit, and sensor is obtained in that more accurately observation data.

Preferably, described assessment of failure module 43 includes：

(1) residual signals signal generating unit, for come design error failure fault detection observer and obtaining need according to Gee system method The residual signals of detecting system, failure definition fault detection observer is：

\tilde{x_{m}} = x_{m}^{f} + [\begin{matrix} 0 \\ I \end{matrix}] [\begin{matrix} a_{2 i} & I \end{matrix}] x_{m}

x_{m + 1}^{f} = \frac{[\begin{matrix} a_{1 i} & 0 \\ - a_{2 i} & - I \end{matrix}] x_{m}^{f} + b_{1 i} K_{m}}{[\begin{matrix} I + a_{2 i} U_{i} & U_{i} \\ a_{2 i} V_{i} & V_{i} \end{matrix}]}

The computing formula with the residual signals of fault message is：

Herein,

E_{i}^{- 1} H_{i} = [\begin{matrix} a_{1 i} + U_{i} {V_{i}}^{- 1} a_{2 i} & U_{i} {V_{i}}^{- 1} \\ - a_{1 i} a_{2 i} - ({V_{i}}^{- 1} + a_{2 i} U_{i} {V_{i}}^{- 1}) a_{2 i} & - ({V_{i}}^{- 1} + a_{2 i} U_{i} {V_{i}}^{- 1}) \end{matrix}]

Wherein, x_mThe state vector of expression system,Expression state x_mEstimation,The estimating of expression system output vector Meter,For secondary statuss, C_mRepresent the residual signals with fault message, Z_mFor system mode error, G_mRepresent fault, Y_mFor Unknown outside Bounded Perturbations vector, K_mFor control input vector, a_2i、a_1i、b_1i、c_1iIt is according to the self-defining suitable dimension of system Matrix, d_2iIt is the matrix according to the self-defining sequency spectrum of system, U_i、V_iDesign parameter for described fault-detecting-observer；

(2) assessment of failure unit, for judging whether D.C. magnetic biasing shielding system breaks down, failure definition valuation functions For：

P (C_{m}) = \sqrt{\frac{1}{n} Σ_{m = m_{0}}^{m_{0} + n} C_{m}^{T}} C_{m} - \underset{K_{m} &GreaterEqual; 0, Y_{m} &GreaterEqual; 0, G_{m} = 0}{S U P} [\sqrt{\frac{1}{n} Σ_{m = m_{0}}^{m_{0} + n} C_{m}^{T}} C_{m}]

Preferably, m₀For initial evolution time, n is that limited evolution time is interval；If P is (C_m)>0, described assessment of failure mould Block output alarm signal, if P is (C_m)≤0, described assessment of failure module 43 exports normal signal.

The fault detection accuracy of the fault detection system 4 of this preferred embodiment setting is high, speed is fast.

Preferably, described alarm display module 44 includes alarm and the LED display being sequentially connected, and comments when receiving fault The alarm signal alarm device estimating module 43 output is reported to the police, and now, LED display is according to fault type determining module 46 Output signal shows fault type；When the normal signal alarm device receiving assessment of failure module 43 output does not work, LED shows Screen display " 00 ".

The alarm display module 44 of this preferred embodiment setting, simple structure is it is easy to implement.

Preferably, described fault location module 45, the sub- observer that it includes being sequentially connected set up unit, decoupling unit and Positioning unit, described sub- observer set up module be directed to each participate in feedback signal sensor set up a series of parallel falls Dimension Robust Observers, each dimensionality reduction Robust Observers corresponds to the output of a sensor；Described decoupling unit utilizes dimensionality reduction Shandong Excellent observer decouples to the output signal of sensor；Described positioning unit is used for positioning failure sensor, if total k ginseng With the sensor of feedback signal, ranging formula is：

γ = j, C_{j} = \underset{i = 0, ... k}{m a x} C_{i}, j &Element; [1, k]

Wherein, γ represents fault sensor, C_iThe output signal of sensor and the fall of signal is fed back in expression by i-th participation The estimated value of dimension Robust Observers is compared the residual error deviation obtaining.

The fault location module 45 of this preferred embodiment setting is using the dimensionality reduction Shandong for the output design of each sensor Excellent observer carries out fault quick detection and positioning, and location efficiency is high.

Preferably, described fault detection system 4 also includes information logging modle 47, and described information logging modle 47 includes letter Breath screening unit and information memory cell, described information memory element is a 64GB solid state hard disc, position of failure point and failure classes Type enters into information memory cell through information sifting unit and stores, and has saved memory space, is easy to follow-up work personnel Carry out failture evacuation.The effect of information sifting unit is to select position of failure point and fault type information to carry out from all information Record.

Finally it should be noted that above example is only in order to illustrating technical scheme, rather than the present invention is protected The restriction of shield scope, although having made to explain to the present invention with reference to preferred embodiment, those of ordinary skill in the art should Work as understanding, technical scheme can be modified or equivalent, without deviating from the reality of technical solution of the present invention Matter and scope.

Claims

1. a kind of vehicle control system, is characterized in that, including catalyst system, control centre, connection system and fault detect system System, described catalyst system includes multiple catalysts, and described connection system includes the first adapter and the second adapter；Described control System connects described catalyst system centrally through the first adapter and the second adapter, and control centre is used for by described first even Connect at least one of device and the second adapter to control described catalyst to transmit control signal to described catalyst system；Institute State fault detection system for diagnosing the fault of described connection system.

2. a kind of vehicle control system according to claim 1, is characterized in that, when described first adapter and described second When adapter does not break down, described control centre is used for passing through described first adapter respectively and described second adapter provides Described control signal gives described catalyst system.

3. a kind of vehicle control system according to claim 2, is characterized in that, when described first adapter and described second When one of adapter breaks down, described control centre is used for by described first adapter and described second adapter Another provide described control signal to described catalyst system.