CN109782747A - Fault detection method and device - Google Patents
Fault detection method and device Download PDFInfo
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- CN109782747A CN109782747A CN201910117786.8A CN201910117786A CN109782747A CN 109782747 A CN109782747 A CN 109782747A CN 201910117786 A CN201910117786 A CN 201910117786A CN 109782747 A CN109782747 A CN 109782747A
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Abstract
The embodiment of the present application provides a kind of fault detection method and device, carries out validation checking to the fault message that control subelement is sent, and record the fault message for passing through validation checking.Meanwhile the validity flag position by monitoring the hard signal received is to identify that effective marker position as the hard signal of failure state, obtains corresponding fault message.Further, also by carrying out self-test to each components in hybrid vehicle to determine self-test fault message.Finally, carrying out the available vehicle mode fault grade of classification and dynamic mode fault level to the fault message in the case of above-mentioned three kinds.So, the effective marker position detection of the validation checking, hard signal of realizing the fault message to control subelement and the self-test of components can be synchronized, realize the fault diagnosis under different situations, and the fault message in comprehensive a variety of situations is to determine complete vehicle fault, the comprehensive of hybrid vehicle fault detection is realized, and improves safety.
Description
Technical field
The present invention relates to Development of HEV Technology fields, in particular to a kind of fault detection method and device.
Background technique
With live to low-carbon, the raising of environmentally protective requirement, the development of hybrid vehicle reaches its maturity, at home
It is used widely outside.Components and sensing equipment etc. are large number of in hybrid vehicle, are dispersed throughout in hybrid vehicle
Portion is with real-time monitoring hybrid vehicle running state information.For the operating status of hybrid vehicle, safety is placed on head
Want position.Hybrid vehicle subsystems how to be accurately determined with the presence or absence of failure, and determine hybrid vehicle
Complete vehicle fault situation, have great significance for the safe operation of hybrid vehicle.
Summary of the invention
In view of this, the purpose of the application is, a kind of fault detection method and device are provided to improve the above problem.
The embodiment of the present application provides a kind of fault detection method, applied to the entire car controller in hybrid vehicle, institute
Entire car controller is stated to connect with each control subelement in the hybrid vehicle, which comprises
When receiving the fault message that control subelement is sent, validation checking is carried out to the fault message received,
The fault message that record passes through validation checking；
The validity flag position of each hard signal received is monitored, and identifies that effective marker position is the hard of failure state
Line signal obtains the corresponding fault message of the hard signal according to the default severity level of the hard signal of failure state；
Self-test is carried out to determine self-test fault message to each components in the hybrid vehicle；
To the corresponding fault message of hard signal and self-test of the fault message, failure state by validation checking
Fault message is classified and is classified, and determines current vehicle mode fault grade according to the result of classification and classification and work as
Preceding dynamic mode fault level.
Optionally, the method also includes:
After determining the current vehicle mode fault grade and the current dynamic mode fault level, according to
Relationship between pre-set different faults grade and different disposal strategy obtains and the current vehicle mode fault etc.
Corresponding first processing strategie of grade, and second processing strategy corresponding with the current dynamic mode fault level；
According to the first processing strategie of acquisition and second processing strategy to corresponding control in the hybrid vehicle
Unit carries out corresponding control.
Optionally, the described pair of fault message received carries out validation checking, the failure that record passes through validation checking
The step of information includes:
Whether the duration for detecting the fault message received is more than preset duration, and the fault message is described pre-
If whether not jumped in duration；
If the duration of the fault message is more than the preset duration and does not jump in the preset duration,
Whether the power supply status for then detecting the control subelement of the transmission fault message is effective；
If the power supply status for sending the control subelement of the fault message is effective, then detects and carry the fault message
Whether the ID of message is effective ID；
If the ID for carrying the message of the fault message is effective ID, it is determined that the fault message is examined by validity
It surveys, the fault message that record passes through validation checking.
Optionally, believed by the fault message of validation checking, the corresponding failure of hard signal of failure state for described pair
The step of breath and self-test fault message are classified and are classified, comprising:
The corresponding control subelement of fault message for passing through validation checking is obtained, according to belonging to the control subelement
Subsystem belonging to the hard signal of subsystem and failure state, determines the event of the subsystems of the hybrid vehicle
Hinder grade；
The vehicle dependent failure grade of the hybrid vehicle is determined according to self-test fault message.
Optionally, the result according to classification and classification determines current vehicle mode fault grade and current dynamic
The step of force mode fault level, comprising:
The highest fault level in the fault level and the vehicle dependent failure grade of all subsystems is obtained, by this
Highest fault level is as current vehicle mode fault grade；
Fault level and the vehicle dependent failure grade to all subsystems by preset rules carry out classification and
Permutation and combination is to obtain current dynamic mode fault level.
Optionally, the method also includes being purged processing to the fault message, which includes following
One of:
In the clearance order for receiving input, online removing processing is carried out to the fault message；
In lower electricity and when re-powering, the fault message before electricity under the last time is purged processing.
Optionally, each components in the hybrid vehicle carry out self-test to determine self-test failure
The step of information, comprising:
For each components in the hybrid vehicle, the currently practical operation information of the components is acquired,
The currently practical operation information of the components is compared with the corresponding status information of the components received；
If the currently practical operation information and the status information of the components are inconsistent, it is determined that there are work not to assist
Failure is adjusted, to obtain self-test fault message.
The embodiment of the present application also provides a kind of fault detection means, applied to the entire car controller in hybrid vehicle,
The entire car controller is connect with each control subelement in the hybrid vehicle, and described device includes:
First detection module, for believing the failure received when receiving the fault message that control subelement is sent
Breath carries out validation checking, the fault message that record passes through validation checking；
Monitoring module for monitoring the validity flag position of each hard signal received, and identifies effective marker position
For the hard signal of failure state, corresponding fault message is obtained according to the default severity level of the hard signal of failure state；
Second detection module, for carrying out self-test to each components in the hybrid vehicle to determine self-test
Survey fault message；
Categorization module, for the corresponding failure of hard signal to the fault message, failure state by validation checking
Information and self-test fault message are classified and are classified；
Determining module, for determining current vehicle mode fault grade and current according to the result of classification and classification
Dynamic mode fault level.
Optionally, described device further include:
Processing strategie obtains module, for determining the current vehicle mode fault grade and the current power
After mode fault grade, according between pre-set different faults grade and different disposal strategy relationship obtain with it is described
Current corresponding first processing strategie of vehicle mode fault grade, and it is corresponding with the current dynamic mode fault level
Second processing strategy；
Control module, for the first processing strategie and second processing strategy according to acquisition in the hybrid vehicle
Corresponding control subelement carry out corresponding control.
Optionally, the first detection module is for carrying out validity inspection to the fault message received in the following manner
It surveys:
Whether the duration for detecting the fault message received is more than preset duration, and the fault message is described pre-
If whether not jumped in duration；
If the duration of the fault message is more than the preset duration and does not jump in the preset duration,
Whether the power supply status for then detecting the control subelement of the transmission fault message is effective；
If the power supply status for sending the control subelement of the fault message is effective, then detects and carry the fault message
Whether the ID of message is effective ID；
If the ID for carrying the message of the fault message is effective ID, it is determined that the fault message is examined by validity
It surveys, the fault message that record passes through validation checking.
Fault detection method and device provided by the embodiments of the present application, the fault message sent to control subelement have
The detection of effect property, and record the fault message by validation checking.Meanwhile the validity by monitoring the hard signal received
Flag bit is to identify that effective marker position as the hard signal of failure state, obtains corresponding fault message.Further, also pass through
Self-test is carried out to determine self-test fault message to each components in hybrid vehicle.Finally, to above-mentioned three kinds of situations
Under fault message carry out the available vehicle mode fault grade of classification and dynamic mode fault level.In this way, can
Synchronous realization is to the validation checking of the fault message of control subelement, the effective marker position detection of hard signal and components
Self-test realizes the fault diagnosis under different situations, and the fault message in comprehensive a variety of situations is realized with determining complete vehicle fault
Hybrid vehicle fault detection it is comprehensive, and improve safety.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the application scenarios schematic diagram of fault detection method provided by the embodiments of the present application.
Fig. 2 is one of the flow chart of fault detection method provided by the embodiments of the present application.
Fig. 3 is the flow chart of validation checking method provided by the embodiments of the present application.
Fig. 4 is the two of the flow chart of fault detection method provided by the embodiments of the present application.
Fig. 5 is the three of the flow chart of fault detection method provided by the embodiments of the present application.
Fig. 6 is one of the functional block diagram of fault detection means provided by the embodiments of the present application.
Fig. 7 is the two of the functional block diagram of fault detection means provided by the embodiments of the present application.
Icon: 600- fault detection means；601- first detection module；602- monitoring module；The second detection module of 603-；
604- categorization module；605- determining module；606- processing strategie obtains module；607- control module.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
Referring to Fig. 1, being the application scenarios schematic diagram of fault detection method provided by the embodiments of the present application.The fault detection
Method is applied to the entire car controller in hybrid vehicle, multiple controls in the entire car controller and hybrid vehicle
Subelement connection, such as motor compressor, electric power steering, clutch controller, battery management system, onboard charger,
Electric machine controller, engine controller and power adapter etc..Above-mentioned each control subelement is dispersed throughout hybrid vehicle
It is interior, with the status information of real-time monitoring hybrid vehicle.Vehicle can be passed through between above-mentioned control subelement and entire car controller
The interaction of CAN bus progress data, information.CAN bus has the advantages that connecting node is more, can connect multiple unit sections simultaneously
Point.
Each control subelement can send information to entire car controller by CAN bus.Entire car controller can be to receiving
Information be analyzed and processed to determine whether hybrid vehicle breaks down and the concrete condition of failure.In addition, mixing
Power vehicle includes multiple components, such as gas pedal, brake pedal etc., and entire car controller can be by acquiring each components
Practical operation information carry out self-test.
In conjunction with Fig. 2, the embodiment of the present application also provides a kind of fault detection method that can be applied to above-mentioned entire car controller.Its
In, method and step defined in the related process of the method can be realized by the entire car controller.It below will be to shown in Fig. 2
Detailed process be described in detail.
Step 210, when receiving the fault message that control subelement is sent, the fault message received is carried out effective
Property detection, record passes through the fault message of validation checking.
Step 220, the validity flag position of each hard signal received is monitored, and identifies effective marker position for failure
The hard signal of state obtains the corresponding failure of the hard signal according to the default severity level of the hard signal of failure state and believes
Breath.
Step 230, self-test is carried out to each components in the hybrid vehicle to determine that self-test failure is believed
Breath.
Step 240, to the corresponding fault message of hard signal of the fault message, failure state by validation checking with
And self-test fault message is classified and is classified, and determines current vehicle mode fault etc. according to the result of classification and classification
Grade and current dynamic mode fault level.
It when the complete vehicle fault to hybrid vehicle judges, is received respectively by entire car controller in the prior art
It is a to control the fault message that subelement reports to be judged.But currently, entire car controller is receiving each control list
When the fault message that member is sent, the comparison of simple grade height is only done so that it is determined that complete vehicle fault grade, and undocked receipts
To fault message do analysis processing to detect whether fault message effective, so as to cause may by the interference of invalid information,
And then influence the judgement of fault level.
In the present embodiment, entire car controller is when receiving the fault message that any one control subelement is sent, then
Validation checking is carried out to the fault message received, to obtain the fault message by validation checking.
Referring to Fig. 3, in the present embodiment, the validation checking to fault message can be realized by following procedure:
Step 310, whether the duration for detecting the fault message received is more than preset duration, and the fault message
Whether do not jumped in the preset duration, if the duration of the fault message is more than the preset duration and in institute
It states in preset duration and does not jump, then execute following steps 320, it is no to then follow the steps 350.
Step 320, whether the power supply status of the control subelement of the detection transmission fault message is effective, if described in sending
The power supply status of the control subelement of fault message is effective, then executes following steps 330, no to then follow the steps 350.
Step 330, whether the ID that detection carries the message of the fault message is effective ID, if carrying the fault message
Message ID be effective ID, then execute following steps 340, it is no to then follow the steps 350.
Step 340, determine that the fault message passes through validation checking.
Step 350, determine that the fault message does not pass through validation checking.
In the present embodiment, entire car controller is directed to fault message transmitted by each control subelement received, statistics
Whether the duration of fault message is more than preset duration, wherein it is unlimited that the preset duration can be 5s, 10s etc..If receiving
Fault message duration it is shorter, when being, for example, less than preset duration, show the fault message less stable, it is difficult to as subsequent
Complete vehicle fault determine foundation.
Also, in the present embodiment, detection is also needed to connect if the duration of the fault message received is more than preset duration
Whether the fault level in fault message received does not jump.For example, transmitted by some the control subelement received
Whether occur the fault level carried in fault message and jumps to this phenomenon of fault level 2 from fault level 1.If receiving
Fault level changes in fault message, it may be determined that the fault message is unstable.
In addition, whether the power supply status for the control subelement for also needing detection to send the fault message is effective, if sending institute
The power supply status for stating the control subelement of fault message is invalid state, then can determine that the fault message is invalid.
In the present embodiment, the fault message is carried in corresponding message, and fault level then carries the ID in the message
In.If the fault message duration received is more than preset duration, and the fault level for including in fault message does not occur
Change and the power supply status of corresponding control subelement is effective status, also needs the message in the detection carrying fault message
Whether ID is effective ID.Wherein, common side in the prior art can be found in for the detailed process of the validation checking of message ID
Formula, therefore not to repeat here.
If detect that the ID for carrying the message in fault message is effective ID, the fault message received can be determined
Validation checking pass through.
In addition, in the present embodiment, entire car controller also needs detection to receive the fault message for controlling that subelement is sent
At the moment, whether entire car controller, which is in, powers on beginning state.Even entire car controller, which is not in, powers on beginning state, shows vehicle
Controller can not be analyzed and processed the fault message received.Therefore, it is necessary to be in power on beginning shape in entire car controller
On the basis of state, the detection to the validity of fault message just can be achieved.
In the present embodiment, entire car controller can also synchronize the rigid line for the rigid line that real time monitoring is connect with each control subelement
The validity flag position of signal is to obtain the hard signal of failure state, so that it is determined that being characterized from the hard signal that bottom is sent
Fault message.Wherein, hard signal includes digital signal and analog signal, and for digital signal, entire car controller can pass through
Obtain whether it there is characterization the flag bit of the states such as short circuit, open circuit or open circuit occur to judge whether the digital signal is effective.
For analog signal, entire car controller can characterize the whether too high or too low flag bit of range of voltage values by obtaining it to judge
Whether the analog signal is effective.
Entire car controller can get the hard signal of failure state, and according to the important journey of preset each hard signal
Spend the corresponding fault message of hard signal to determine failure state.
In addition, it is contemplated that being possible to will appear due to each control subelement fault-free itself but controlling work between subelement
Make it is uncoordinated caused by complete vehicle fault the phenomenon that, therefore, in the present embodiment, entire car controller can also in real time, it is synchronously right
Each components in hybrid vehicle carry out self-test to determine self-test fault message.
Referring to Fig. 4, in the present embodiment, following procedure realization can be led to the self-test of each components:
Step 410, for each components in the hybrid vehicle, the currently practical behaviour of the components is acquired
Make information, the currently practical operation information of the components is compared with the corresponding status information of the components received.
Step 420, if the currently practical operation information and the status information of the components are inconsistent, it is determined that exist
Work uncoordinated failure, to obtain self-test fault message.
In the present embodiment, entire car controller, which can be synchronized, carries out self-test to each components, can be directed to hybrid vehicle
Interior each components acquire the currently practical operation information of the components, by collected currently practical operation information with connect
The corresponding status information of the components received is compared, to detect between components with the presence or absence of the shape that work is uncoordinated
Condition.Wherein, the corresponding status information of the components received is other components of the relevant state for detecting the components
It detects and is sent to entire car controller.For example, for the brake pedal in hybrid vehicle, if entire car controller acquires
The practical operation information of the brake pedal arrived is brake pedal without aperture, but the switching information of the brake pedal received is but located
In "On" state, i.e. the current practical operation information of brake pedal and the status information received is inconsistent.In this case, may be used
Think there is the uncoordinated situation of work between the two.At this point, entire car controller can determine the corresponding self-test failure of the situation
Information.Wherein, it should be noted that the control subelement in hybrid vehicle is also the components in hybrid vehicle
A part.
In the present embodiment, entire car controller synchronizes fault detection in terms of above three, i.e., above-mentioned steps 210,
Step 220 and step 230 sequence in no particular order in execution can synchronize execution in real process.It is examined obtaining by validity
After the fault message of survey, the corresponding fault message of hard signal of failure state and self-test fault message, to above-mentioned three
The fault message of seed type is classified and is classified to obtain the fault level letter for the subsystems for embodying hybrid vehicle
Breath.Fig. 5 is please referred to, which can be realized by following procedure:
Step 510, the corresponding control subelement of fault message for passing through validation checking is obtained, it is single according to control
Subsystem belonging to the hard signal of subsystem belonging to member and failure state determines each height of the hybrid vehicle
The fault level of system.
Step 520, the vehicle dependent failure grade of the hybrid vehicle is determined according to self-test fault message.
In the present embodiment, each control subelement belongs to different subsystems, and each hard signal embodies different sub-systems
Information.It can be according to passing through the hard of subsystem belonging to the corresponding control subelement of the fault message that effectively detects and failure state
Subsystem belonging to line signal, to determine the fault level of subsystems.
Such as it can be maximum allowable according to the corresponding fault message of control subelement of battery management system and preset battery
Discharge power is to judge high-pressure system fault level；Permitted according to the corresponding fault message of electric machine controller and preset motor maximum
Perhaps discharge power determines the fault level of power drive system；Judged to increase journey according to the corresponding fault message of engine and generator
The fault level of system；The fault level of transmission system is judged according to the corresponding fault message of clutch.
In addition, vehicle dependent failure of hybrid vehicle etc. can be also determined in the present embodiment according to self-test fault message
Grade.
In the present embodiment, after the fault level and vehicle dependent failure grade for determining subsystems, it may be determined that
Current vehicle mode fault grade and current dynamic mode fault level.
Optionally, it can get the highest failure in the fault level and the vehicle dependent failure grade of all subsystems
Grade, using the highest fault level as vehicle mode fault grade.
Fault level and the vehicle dependent failure grade to all subsystems by preset rules carry out classification and
Permutation and combination is to obtain dynamic mode fault level.Herein, for the fault level of subsystem and vehicle dependent failure grade
Classification and permutation and combination are not specifically limited, and can be accordingly arranged according to actual needs.Such as it can be several by preset rules synthesis
A fault level is ranked up to obtain dynamic mode fault level, or by preset significance level to obtain dynamic mode
Fault level etc..
In the present embodiment, after determining vehicle mode fault grade and dynamic mode fault level, also need to determine correspondence
Treatment measures.It can be obtained according to the relationship between pre-set different faults grade and different disposal strategy and currently whole
Corresponding first processing strategie of vehicle mode fault grade, and second processing plan corresponding with current dynamic mode fault level
Slightly.According to the first processing strategie of acquisition and second processing strategy to the corresponding control subelement in the hybrid vehicle into
The corresponding control of row.
For example, vehicle mode fault grade can be divided into fault level 0-4, it is when vehicle mode fault grade is 0, then not right
Vehicle makees any processing, normally travel.If vehicle mode fault grade is 1, vehicle power is reduced, makes vehicle with low-power
Traveling.If vehicle mode fault grade is 2, vehicle greatest requirements torque is limited, its max speed is made to be no more than setting value
To walk lamely.If vehicle mode fault grade is 3, dynamical system allows output torque to be 0.If vehicle mode fault grade is
When 4, then vehicle need to carry out promptly lower electricity, to protect the safety of passengers inside the car.
For another example, dynamic mode fault level can be divided into fault level 1-3, when dynamic mode fault level is 1, can forbid
It is straight to drive mode, force the condition that vehicle is entered to parallel connection to be set to 0, even if dynamic mode not can enter clutch binding pattern, from
And realize the purpose for being prohibited from entering paralleling model.If dynamic mode fault level is 2, forbid pure power mode, forcing will hair
The condition of motivation starting is set to 1, even if dynamic mode enters engine start mode, forbids to realize into pure power mode
Purpose.If dynamic mode fault level is 3, forbid increasing journey mode, forces to need to enter to increase journey and start engine
Condition is set to 0, even if dynamic mode not can enter engine start mode, to realize the purpose for being prohibited from entering and increasing journey mode.
It should be noted that the corresponding relationship between above-mentioned fault level and the first processing strategie, second processing strategy is only
For for example, and be defined in this, corresponding setting can be done according to the actual situation.
In the present embodiment, when breaking down, prompt information is produced also to prompt user to repair.If vehicle control
When device processed receives the clearance order of input, such as after maintenance personal's debugging, clearance order, or maintenance can be inputted
Personnel think that the failure does not influence to run, and can also input clearance order.After entire car controller receives clearance order, it can incite somebody to action
The fault message arrived carries out online removing processing.It is interfered in this way, retaining always to avoid fault message to subsequent.
In addition, entire car controller can also be in lower electricity and when re-powering, if detecting the presence of electricity Shi Suobao under the last time
When the fault message stayed, the fault message of preservation is purged processing.What is saved when preventing from re-powering is last time event
Hinder information, to interfere to maintenance personal.
Referring to Fig. 6, the embodiment of the present application also provides a kind of fault detection means 600, the fault detection means 600 is answered
For in above-mentioned entire car controller, fault detection means 600 include at least one can store in the form of software or firmware and
Software function module in the storage medium of entire car controller.Processor in entire car controller executes holding in storage medium
When capable program, such as the software function module that is included of fault detection means 600 and program etc., to realize above-mentioned failure inspection
Survey method.
In the present embodiment, the fault detection means 600 includes first detection module 601, the inspection of monitoring module 602, second
Survey module 603, categorization module 604 and determining module 605.
The first detection module 601, for receive control subelement send fault message when, to what is received
Fault message carries out validation checking, the fault message that record passes through validation checking.It is appreciated that the first detection module
601 can be used for executing above-mentioned steps 210, and the detailed implementation about the first detection module 601 is referred to above-mentioned right
The related content of step 210.
The monitoring module 602 for monitoring the validity flag position of each hard signal received, and identifies effectively
Flag bit is the hard signal of failure state, obtains the hard signal according to the default severity level of the hard signal of failure state
Corresponding fault message.It is appreciated that the monitoring module 602 can be used for executing above-mentioned steps 220, about the monitoring module
602 detailed implementation is referred to above-mentioned to the related content of step 220.
Second detection module 603, for in the hybrid vehicle each components carry out self-test with
Determine self-test fault message.It is appreciated that second detection module 603 can be used for executing above-mentioned steps 230, about this
The detailed implementation of two detection modules 603 is referred to above-mentioned to the related content of step 230.
The categorization module 604, it is corresponding for the hard signal to fault message, failure state by validation checking
Fault message and self-test fault message classified and be classified.The determining module 605, for according to classification and classification
Result determine current vehicle mode fault grade and current dynamic mode fault level.It is appreciated that the classification mould
Block 604 and determining module 605 can be used for executing above-mentioned steps 240, about the detailed of the categorization module 604 and determining module 605
Thin implementation is referred to above-mentioned to the related content of step 240.
Referring to Fig. 7, in the present embodiment, the fault detection means 600 further include processing strategie obtain module 606 with
And control module 607.
The processing strategie obtains module 606, for determining the current vehicle mode fault grade and power mould
After formula fault level, is obtained according to the relationship between pre-set different faults grade and different disposal strategy and worked as with described
Preceding corresponding first processing strategie of vehicle mode fault grade, and it is corresponding with the current dynamic mode fault level
Second processing strategy.
The control module 607, for dynamic to the mixing according to the first processing strategie and second processing strategy of acquisition
Corresponding control subelement in power automobile carries out corresponding control.
In the present embodiment, the first detection module 601 can in the following manner to the fault message received into
Row validation checking:
Whether the duration for detecting the fault message received is more than preset duration, and the fault message is described pre-
If whether not jumped in duration；
If the duration of the fault message is more than the preset duration and does not jump in the preset duration,
Whether the power supply status for then detecting the control subelement of the transmission fault message is effective；
If the power supply status for sending the control subelement of the fault message is effective, then detects and carry the fault message
Whether the ID of message is effective ID；
If the ID for carrying the message of the fault message is effective ID, it is determined that the fault message is examined by validity
It surveys, the fault message that record passes through validation checking.
It is apparent to those skilled in the art that for convenience and simplicity of description, the device of foregoing description
Specific work process, no longer can excessively be repeated herein with reference to the corresponding process in preceding method.
In conclusion fault detection method provided by the embodiments of the present application and device, the failure sent to control subelement
Information carries out validation checking, and records the fault message by validation checking.Meanwhile being believed by monitoring the rigid line received
Number validity flag position to identify that effective marker position as the hard signal of failure state, obtains corresponding fault message.Into
One step, also by carrying out self-test to each components in hybrid vehicle to determine self-test fault message.Finally, to upper
Fault message in the case of stating three kinds carries out the available vehicle mode fault grade of classification and dynamic mode failure etc.
Grade.In this way, the effective marker position that can synchronize the validation checking, hard signal of realizing the fault message to control subelement is detected
And the self-test of components, realize the fault diagnosis under different situations, and the fault message in comprehensive a variety of situations is whole with determination
Vehicle failure realizes the comprehensive of hybrid vehicle fault detection, and improves safety.
In embodiment provided herein, it should be understood that disclosed device and method, it can also be by other
Mode realize.The apparatus embodiments described above are merely exemplary, for example, the flow chart and block diagram in attached drawing are shown
Architectural framework in the cards, function and the behaviour of devices in accordance with embodiments of the present invention, method and computer program product
Make.In this regard, each box in flowchart or block diagram can represent a part of a module, section or code, institute
The a part for stating module, section or code includes one or more executable instructions for implementing the specified logical function.
It should also be noted that function marked in the box can also be to be different from attached drawing in some implementations as replacement
The sequence marked occurs.For example, two continuous boxes can actually be basically executed in parallel, they sometimes can also be by
Opposite sequence executes, and this depends on the function involved.It is also noted that each box in block diagram and or flow chart,
And the combination of the box in block diagram and or flow chart, hardware can be based on the defined function of execution or the dedicated of movement
System realize, or can realize using a combination of dedicated hardware and computer instructions.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or equipment for including a series of elements not only includes those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or equipment institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including institute
State in the process, method, article or equipment of element that there is also other identical elements.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should also be noted that similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and explained.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of fault detection method, which is characterized in that applied to the entire car controller in hybrid vehicle, the vehicle control
Device processed is connect with each control subelement in the hybrid vehicle, which comprises
When receiving the fault message that control subelement is sent, validation checking, record are carried out to the fault message received
Pass through the fault message of validation checking；
The validity flag position of each hard signal received is monitored, and identifies that the rigid line that effective marker position is failure state is believed
Number, the corresponding fault message of the hard signal is obtained according to the default severity level of the hard signal of failure state；
Self-test is carried out to determine self-test fault message to each components in the hybrid vehicle；
To the corresponding fault message of hard signal and self-test failure of the fault message, failure state by validation checking
Information is classified and is classified, and determines current vehicle mode fault grade and current according to the result of classification and classification
Dynamic mode fault level.
2. fault detection method according to claim 1, which is characterized in that the method also includes:
After determining the current vehicle mode fault grade and the current dynamic mode fault level, according to preparatory
Relationship between the different faults grade and different disposal strategy of setting obtains and the current vehicle mode fault grade pair
The first processing strategie answered, and second processing strategy corresponding with the current dynamic mode fault level；
According to the first processing strategie of acquisition and second processing strategy to the corresponding control subelement in the hybrid vehicle
Carry out corresponding control.
3. fault detection method according to claim 1, which is characterized in that the described pair of fault message received has
The detection of effect property, record include: by the step of fault message of validation checking
Whether the duration for detecting the fault message received is more than preset duration, and the fault message is when described default
Whether do not jumped in long；
If the duration of the fault message is more than the preset duration and does not jump in the preset duration, examine
Whether the power supply status for surveying the control subelement of the transmission fault message is effective；
If the power supply status for sending the control subelement of the fault message is effective, then detects the message for carrying the fault message
ID whether be effective ID；
If the ID for carrying the message of the fault message is effective ID, it is determined that the fault message passes through validation checking, note
The fault message that record passes through validation checking.
4. fault detection method according to claim 1, which is characterized in that the described pair of failure by validation checking is believed
The step of breath, the corresponding fault message of hard signal of failure state and self-test fault message are classified and be classified, packet
It includes:
The corresponding control subelement of fault message for passing through validation checking is obtained, according to subsystem belonging to the control subelement
Subsystem belonging to the hard signal of system and failure state, determines the failure etc. of the subsystems of the hybrid vehicle
Grade；
The vehicle dependent failure grade of the hybrid vehicle is determined according to self-test fault message.
5. fault detection method according to claim 4, which is characterized in that described to be determined according to the result of classification and classification
The step of current vehicle mode fault grade and current dynamic mode fault level, comprising:
The highest fault level in the fault level and the vehicle dependent failure grade of all subsystems is obtained, by the highest
Fault level is as current vehicle mode fault grade；
Fault level and the vehicle dependent failure grade to all subsystems are classified and are arranged by preset rules
Combination is to obtain current dynamic mode fault level.
6. fault detection method according to claim 1, which is characterized in that the method also includes to the fault message
The step of being purged processing, which includes following one:
In the clearance order for receiving input, online removing processing is carried out to the fault message；
In lower electricity and when re-powering, the fault message before electricity under the last time is purged processing.
7. fault detection method according to claim 1, which is characterized in that described to each in the hybrid vehicle
A components carry out the step of self-test is to determine self-test fault message, comprising:
For each components in the hybrid vehicle, the currently practical operation information of the components is acquired, by this
The currently practical operation information of components is compared with the corresponding status information of the components received；
If the currently practical operation information and the status information of the components are inconsistent, it is determined that there are the uncoordinated events of work
Barrier, to obtain self-test fault message.
8. a kind of fault detection means, which is characterized in that applied to the entire car controller in hybrid vehicle, the vehicle control
Device processed is connect with each control subelement in the hybrid vehicle, and described device includes:
First detection module, for receive control subelement send fault message when, to the fault message received into
Row validation checking, the fault message that record passes through validation checking；
Monitoring module for monitoring the validity flag position of each hard signal received, and identifies effective marker position to lose
The hard signal of effect state obtains corresponding fault message according to the default severity level of the hard signal of failure state；
Second detection module, for carrying out self-test to each components in the hybrid vehicle to determine self-test event
Hinder information；
Categorization module, for the corresponding fault message of hard signal to the fault message, failure state by validation checking
And self-test fault message is classified and is classified；
Determining module, for determining current vehicle mode fault grade and current power according to the result of classification and classification
Mode fault grade.
9. fault detection means according to claim 8, which is characterized in that described device further include:
Processing strategie obtains module, for determining the current vehicle mode fault grade and the current dynamic mode
After fault level, obtained according to the relationship between pre-set different faults grade and different disposal strategy and described current
Corresponding first processing strategie of vehicle mode fault grade, and corresponding with the current dynamic mode fault level
Two processing strategies；
Control module, for the first processing strategie and second processing strategy according to acquisition to the phase in the hybrid vehicle
Subelement should be controlled and carry out corresponding control.
10. fault detection means according to claim 8, which is characterized in that the first detection module be used for by with
Under type carries out validation checking to the fault message received:
Whether the duration for detecting the fault message received is more than preset duration, and the fault message is when described default
Whether do not jumped in long；
If the duration of the fault message is more than the preset duration and does not jump in the preset duration, examine
Whether the power supply status for surveying the control subelement of the transmission fault message is effective；
If the power supply status for sending the control subelement of the fault message is effective, then detects the message for carrying the fault message
ID whether be effective ID；
If the ID for carrying the message of the fault message is effective ID, it is determined that the fault message passes through validation checking, note
The fault message that record passes through validation checking.
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