CN109789843A - Method for running vehicle-mounted energy net - Google Patents
Method for running vehicle-mounted energy net Download PDFInfo
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- CN109789843A CN109789843A CN201780059205.9A CN201780059205A CN109789843A CN 109789843 A CN109789843 A CN 109789843A CN 201780059205 A CN201780059205 A CN 201780059205A CN 109789843 A CN109789843 A CN 109789843A
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- component
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- mounted energy
- energy net
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
- G01R31/007—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks using microprocessors or computers
Abstract
The present invention relates to the methods of the vehicle-mounted energy net (25) for running motor vehicle, wherein the vehicle-mounted energy net (25) has multiple components (28, 30, 32), wherein according to all components (28, 30, 32) value of physics operation parameters executes the diagnosis of virtual condition as vehicle-mounted energy net (2, 25) all components (28, 30, 32) first state analysis, wherein according to a component (28 respectively, 30, 32) value of physics operation parameters is used as a component (28 respectively the diagnosis of virtual condition is individually performed, 30, 32) at least one second state analysis, wherein distinguish a component (28, 30, 32) at least one second state analysis passes through all components (28, 30, 32) first state analysis is closed to check Rationality.
Description
Technical field
The present invention relates to the method and apparatus of the vehicle-mounted energy net for running motor vehicle.
Background technique
The vehicle-mounted energy net of motor vehicle has to the task of customer supplying energy.If energy supply is due to vehicle-mounted energy
Net at least one component failure or aging and fail, then important function, such as power-assisted steering fail.Because not influencing machine
The steering capability of motor-car, and only become very heavy, so the failure of the nowadays complete vehicle-mounted energy net in motor vehicle is general
Received.
Due to the increased electrified of complete set of equipments and new driving functions are introduced, generates and the electric energy in motor vehicle is supplied
The higher requirement of the safety and reliability answered.
In the case where supermatic driving functions in future, such as highway cruise, with limited extent
Allow the non-driving sexuality of driver.Thus cause, until supermatic driving functions terminate, human driver is also only
The function of as sensor, regulation technology, mechanical and energy standby can limitedly be fulfiled.Therefore, electric energy supply exists
Have in a motor vehicle so far in increasingly automated traveling in order to guarantee the standby of sensor, regulation technology and actuator
The security significance not understood.Therefore, the failure in vehicle-mounted electric energy net and aging must be reliably in the sense that product safety
And it is identified as fully as possible.Be considered as in this case driver in full-automatic or autonomous traveling entirely as
Above-mentioned standby and be removed.
Twin-channel vehicle-mounted energy net is especially in printed document WO 2015/135729A1 or in printed document DE 10
It is described by 2011 011 800 A1.
In order to predict the failure of the component in vehicle-mounted subnet, the portion for monitoring the vehicle-mounted energy net of motor vehicle is set
The scheme of the engineering reliability of part.Here, with operation monitoring component and determining its damage, this is in printed document DE 10
It is described by 2013 203 661 A1.
Become known for monitoring the monitoring arrangement of the vehicle-mounted energy net of motor vehicle from 10 2,013 201 060 A1 of DE.It is vehicle-mounted
Energy grid has on-board high-voltage net and vehicle-mounted low voltage network, they are connected with each other by dc voltage changer, plurality of safety
Crucial customer is connected on vehicle-mounted low voltage network.Monitoring arrangement has monitoring control equipment and the consumption as each safety-critical
The sensor of the value of the operation electrical parameter for detecting customer of the other component of electric appliance distributed, wherein monitoring control is set
It is standby to be configured to monitor at least one customer in the case where considering the value detected of operation electrical parameter.
Summary of the invention
The method and apparatus with the feature of independent claims are proposed in this context.The configuration scheme of method and apparatus
It is obtained from specification and dependent claims.
In the method for execution, the monitoring of all components for vehicle-mounted energy net is used for the vehicle-mounted energy net of motor vehicle
Unit, using the monitoring unit in the state aspect possible at present and in the future of all components, for example in consideration abrasion and/or always
All components are prophylactically monitored in the case where change.The prediction of state from now on can be based on the two aspects, i.e. abrasion and aging.
Alternatively, however, or addedly, it is also contemplated that other aspects.Here, using as the monitoring of the component of the device proposed
Unit executes the prediction of the component wear of electric network state management (PCM) or current state monitoring and vehicle-mounted energy net, utilizes the prison
Depending on unit the system layer of vehicle-mounted energy net and in the component layer of each component monitor vehicle-mounted energy net state.Here,
Such monitoring unit for system layer is set.It is possible that for the component of each unit, it is pre- on execution unit layer
It surveys, and the prediction in system layer is executed for entire vehicle-mounted energy net, wherein the prediction in component layer can pass through system layer
On prediction carry out reasonableness check.
Monitoring unit includes the diagnostic module and prediction module as module.It can be held using diagnostic module for each component
The diagnosis of row virtual condition is as possible state analysis.In addition it is also possible to for entire vehicle-mounted energy net, usually consider comprehensively
Diagnosis of the virtual condition with therefore current state is executed in the case where all components of vehicle-mounted energy net as possible state point
Analysis.Using prediction module the prediction of state from now on can be executed as possible state analysis for each component.In addition it is also possible to
The prediction of state from now on is executed for entire vehicle-mounted energy net, usually in the case where considering all components of vehicle-mounted energy net comprehensively
As possible state analysis.
Using the monitoring unit, at least one component and/or at least one onboard power system channel and/or entire vehicle are being considered
In the case where at least one diagnosis and/or prediction for carrying energy grid, usually automatically judgement allows to open or must refrain from
The driving functions of driving functions, such as automation.In this regard, being provided with monitoring unit, synthetically and comprehensively monitor vehicle-mounted
The component of energy grid, the entire state using monitoring unit evaluation by the energy supply of vehicle-mounted energy net, the energy supply
Dependent at least one operation parameters, because all parts of vehicle-mounted energy net are lacking the information about entire vehicle-mounted energy net
In the case where cannot generally evaluate this point.In general, driving functions are supported by least one component of vehicle-mounted energy net.
In the method for execution, all parts of vehicle-mounted energy net are by usual physics operation parameters, such as electric current, voltage or temperature
The current value of degree is transmitted to monitoring unit.By the value of at least one operation parameters, by by all parts and entire vehicle
The diagnosis set of energy grid is carried to monitor the current state of vehicle-mounted energy net, wherein the diagnosis of the vehicle-mounted energy net in system layer is used
In the reasonableness check of the diagnosis of all parts in component layer.Furthermore, it is possible to execute entire vehicle-mounted energy using monitoring unit
The fail-safe analysis of all parts of net and vehicle-mounted energy net.Here, the key state of energy supply is according to vehicle-mounted energy net
Topology, failure cause and/or operational mode predict that the operational mode is for example configured to perform the corresponding line of motor vehicle
Sail operation.Here, the value of at least one operation parameters of real-time detection and monitoring, therefore determined based on state and reliability monitoring
The load of at least one component.In addition, the state analysis of all parts for example, it also includes the value of failure probability is passed to prison
Depending on unit and it is used for the state analysis of entire onboard power system.
It can monitor using this method and the device and predict and/or diagnose herein the shape of the vehicle-mounted energy net of motor vehicle
State.
The state (Stateful Inspection) of all important components of motor vehicle can be generally monitored using the device.Here, from
The angle of product safety, the device are suitable for the new opplication of safety-critical, and the new opplication is for example related to automation traveling.?
This, it is in particular possible to, prophylactically wear-out failure of the identification as unit failure, the wear-out failure be usually motor vehicle with
And the vehicle-mounted energy net in the context of new opplication range malfunction the reason of.Furthermore it can introduce for eliminating this event
The counter-measure of barrier.The aging of the development of this more particularly to this component or the aging mechanism of development.In order to evaluate this aging
Be respectively it is how crucial, utilize an algorithm to consider meaning of the component in entire vehicle-mounted energy net and/or motor vehicle.
In configuration scheme, according to the monitoring at least one component for providing vehicle-mounted energy net as a result, supporting about example
Such as automate the judgement of the unlatching of driving functions.It is considered herein that the aging effect of at least one component in vehicle-mounted energy net,
At least such driving functions are important.According to the aging of the possible state as such driving functions, Ke Yijin
Only and/or revocation driving functions unlatching.If temporarily executing driving functions and detecting the security-critical of at least one component
State, then can promote terminate and leave driving functions.This is for example also related to sliding, this slides the use as motor vehicle
In the operational mode for the automation driving functions for executing motor vehicle and/or as the automation driving functions of motor vehicle, thus again
It can be to avoid the state of the safety-critical of motor vehicle.
Prophylactically application traveling is tactful in configuration scheme, avoids result in vehicle-mounted energy net by the traveling strategy
Thus the traveling situation of the strong aging of at least one component improves the reliability of vehicle-mounted energy net.
This method also includes executing at least one preventative maintenance measure at least one component, the maintenance measure example
It can such as be executed in regularly service intervals, thus the availability of at least one component is provided.Usually executing driving functions
In, such as in automation running, by alerting the key state in order to avoid the threat of vehicle-mounted energy net early, can execute
By the control switching of motor vehicle and/or it is transferred to the simple steerable traveling run with manual drive for driver
Function.
Even if it is also possible that motor vehicle is in the case where the component failure of vehicle-mounted energy net in the range of this method
Also safe condition automatically and without driver's intervention is entered from automation running and therefore execute compulsory
Safety measure.If such as having for machine due to vehicle-mounted energy net should be predicted using the monitoring unit of vehicle-mounted energy net
Key state caused by the abrasion of at least one component of the high importance of motor-car, then this unlatching for also relating to forbid driving functions
Measure.Therefore it can alert early in order to avoid key state, wherein gaining time when introducing and returning to strategy.
It, can also be with manual by identifying as the upcoming of key state and/or showing the failure of the symptom of a trend early
The driving operation of non-automated improve the reliability and safety of motor vehicle, thus can also be to avoid casting anchor in such as high speed
On the lane of highway.
Running that can control and/or support the automation from now on of motor vehicle using this method and autonomous and because
The execution of this corresponding driving functions, wherein in view of driver no longer or need not be re-used as sensor in such running
, regulation technology, mechanical and energy standby, because of the function of motor vehicle adapter tube driver, such as environment from now on
Identification, trajectory planning and for example, it also includes the path implementation for turning to and braking.
Here, monitoring whether vehicle-mounted energy net is in trouble-free state and in the near future in configuration scheme
With trouble-free state.This again means that, only when confirmed by monitoring unit it is all thus needed for component operation just
When often and ensuring required energy supply, automation and/or autonomous driving functions just are provided for driver or user.It can benefit
It is failed with the possibility of the energy supply of monitoring unit prediction unit, wherein also being taken before automation driving functions are no longer controllable
Counter-measure, because automation function is for Context awareness, trajectory planning and realizes no longer available.It can by using monitoring unit
To ensure the very high requirement of angle to the slave product safety of the vehicle-mounted energy net of motor vehicle.
In configuration scheme, the load and/or load-bearing capacity of the component of vehicle-mounted energy net are determined using monitoring unit, wherein
Determine load in real time in continuous service.The load-bearing capacity model of component in advance, is for example directed in test the sheth of determination
Part determines.Load is converted into the frame conditions of load-bearing capacity.By control load and load-bearing capacity it can be concluded that about working as
The conclusion of preceding failure probability and the prediction of failure, wherein the prediction is compared with maximum allowable failure probability.Load energy
The usual component of power model is relatively stored in monitoring unit (PCM).If should occur at least one portion in continuous service
The failure of part, this is avoided by using monitoring unit, then can by analyze multiple failures of the identical component of identical structure come
Adjustment and/or generation load-bearing capacity model.The state from now on of vehicle-mounted energy net is inferred to from load-bearing capacity.
Furthermore it can monitor the state of vehicle-mounted energy net and result is transmitted to the control equipment of motor vehicle, wherein necessary
When can forbid the automation driving functions of security-critical.About the unlatching for automating driving functions or forbid, in different operations
Mode is for example recycled or is distinguished between sliding, because according to operational mode and therefore for automating traveling accordingly
Function generally obtains structure and therefore also different structure in vehicle-mounted energy net, and structure as wherein at least one can also
To be alternatively configured as redundancy structure.When sliding, this can be related to saving the generator as the redundancy to battery.As long as right
Such as aging and/or abrasion are identified in component, just generally for as the entire of system layer in the range of importance analysis
Motor vehicle at least considers the aging and/or abrasion for the correlation of vehicle-mounted energy net.The importance of component depends on vehicle-mounted
The topology of energy grid, the vehicle-mounted energy net can with single channel or multi-channel construct and with and without balancing cell.Here,
The topology of the vehicle-mounted energy net constructed in a motor vehicle usually determines after its manufacture.The structure of vehicle-mounted energy net is in exploitation vehicle
At least analysis is primary during carrying energy grid or only analyzes once, wherein considering operational mode and failure cause when necessary.Then
It is stored in structure as at least one algorithm in monitoring unit.Here, it is also contemplated that algorithms of different, the wherein algorithm of structure
Respectively depend on operational mode and/or failure cause.According to motor vehicle, according to the classification of motor vehicle and envelop of function it can be concluded that
Different topology can monitor all these topologys in the range of described method.In addition, the importance of component can also be according to
Rely the operational mode in motor vehicle.
The state that vehicle-mounted energy net is determined using monitoring unit includes based on as the physics operation parameters of input parameter
Value as the system diagnostics of state analysis and the prediction of the state from now on for predicting vehicle-mounted energy net based on load, wherein
The virtual condition of vehicle-mounted energy net is analyzed based on the value of physics operation parameters, all parts are existing in operation up to the present
Field is subjected to the load, it follows that possible load-bearing capacity.Here, the information of the load-bearing capacity about component from exploitation component
It is middle to generate and depend on the type of used component, the running temperature of the interconnection of component and component, for example export heat
Ability.The use of component does not usually influence load-bearing capacity.Caused by the load of component is by its application in a motor vehicle.From
Load and load-bearing capacity determine the characteristic value of the reliability at least one component, such as transient failure probability and the portion of component
The prediction of part failure.It is provided in the range of this method, at least one component is monitored simultaneously to sensor type in continuous service
And its current virtual condition is diagnosed according to the value of at least one operation parameters.Up to the present total of at least one component
Load can be determined equally from the value of these operating parameters, in longer time section, such as arriving at least one component
These values are determined and collected during whole service so far.The value of operation parameters is mentioned using the sensor for distributing to component
Supply monitoring unit.Here, load is determined based on the value of at least one physics operation parameters, at least one physics operation ginseng
Amount has obtained in the operation of at least one component so far.From the relevant operation parameters of load and up to the present load knot
Close at least one reliability characteristic value that load-bearing capacity calculates at least one component, the failure probability of for example, at least one component.
In addition, can use the state and necessity of the component of central database correction vehicle-mounted energy net in the method for execution
Shi Congzhong makes following judgement, if reduces electric loading by cutting off or degrading as the customer of the component of vehicle-mounted energy net
Or determining operational mode whether is avoided, it is possible thereby to optimize the operation of the component of vehicle-mounted energy net.In this case, may be used
The state of the vehicle-mounted energy net of the first motor vehicle to be compared with the state of the vehicle-mounted energy net of other motor vehicles, wherein machine
The state of motor-car for example due at least one component of vehicle-mounted energy net, may entire vehicle-mounted energy net failure and generate
Deviation can be identified and eliminate and compared with the state of the vehicle-mounted energy net of other vehicles.Thus, for example a portion
Failure in part may cause the excessive demand to other component, which can be identified and eliminate.
Furthermore it can detecte field data, the component of configuration and/or design from now on can be considered for.
In monitoring unit and therefore in the configuration scheme of device, the physics of all parts and/or system diagnostics exist
Central position summarizes.This method can also with software support be executed herein, because there is monitoring unit at least one to calculate list
Member is configured to monitor the computing unit of the component of vehicle-mounted energy net.Herein it is contemplated that forbidding and therefore not opening
Driving functions are opened, although the currently practical state of vehicle-mounted energy net determined based on the state analysis for being configured to diagnosis can be run
Normally, but key state from now on is predicted based on the state analysis that the construction being equally performed is prediction.
Using the possible failure and/or possible aging of the component of this method identification vehicle-mounted energy net, wherein can advise
It is fixed, terminate or prevents for executing the operational mode of driving functions and promoting to be converted to security operating mode, wherein travelling function
The control of energy can hand to driver, this is also in the case where considering the prediction about key state from now on may
, although even if single component is in view of diagnosis without report failure or aging.In configuration scheme, including it is more
A component and state analysis ratio that entire vehicle-mounted energy net executes therefore is diagnosed when necessary for only one component or a small amount of
The state analysis of component is higher classified.In addition, respectively according to the topology of operational mode, failure cause and/or vehicle-mounted energy net
Specifically open driving functions.Consider which component supports corresponding driving functions and therefore for executing in configuration scheme
Driving functions are necessary.It can be directed to for each driving functions, in configuration scheme about the judgement for opening driving functions
Automation driving functions are made.Driving functions can for example be configured to slide operation in manual drive, but also can be structured as
Operation is slided in automation traveling.
Wherein consider that the state analysis of multiple components can be used to wherein consider jointly the state point of a small amount of component jointly
The reasonableness check of analysis.
In this case check the following contents reasonability: the component of state analysis to upper level control equipment and/or
What the consideration whether result of monitoring unit report is matched with the system correlation by entire vehicle-mounted energy net of state analysis generated
As a result.Here, vehicle-mounted energy net can be described particularly by node and mesh rule, it is possible thereby to identify possible unreasonable
Property.
In general, vehicle-mounted energy net can have the component of only one manufacturer or different manufacturers.Here, the first manufacture
The component of quotient can be supplemented and/or be replaced by the component of other manufacturer.Herein it is possible that for such strange
Load-bearing capacity model and/or Ageing Model is not present in component, this may not be for example especially to be arranged for answering when these components
With in a motor vehicle when be such case.However, these components can also be monitored and be diagnosed in the embodiment of method
Its state and also predict state from now on.If vehicle-mounted energy net is made of the component of different manufacturers, provide: monitoring
The different load capability model of corresponding manufacturer may be implemented in unit.For example, it is contemplated that being stored in each component negative
Lotus capability model and information needed for load to be converted into frame conditions and application in a motor vehicle when automatically read
Into monitoring unit, wherein there are load-bearing capacity models in the information.Load-bearing capacity model can be determined according to test.It is logical
Often, in height and/or the motor vehicle of full-automation, only using only there are the components of load-bearing capacity model.
By the communication with central database, operational mode can be exported by exchanging data with database via internet
Or the variation based on cloud of operation reserve, to reduce the failure of vehicle-mounted energy net.In addition, by internet can determine about
The knowledge of the load-bearing capacity of the component of other manufacturers.If the strange component of other manufacturers is applied in vehicle-mounted energy net,
Possible load-bearing capacity model and/or Ageing Model are then read in by monitoring unit.In addition, can be improved by detecting field data
The exploitation of component, wherein by the field data of component of the detection based on a large amount of field monitors, such as can be with by deep learning
Improve load-bearing capacity model.It is also possible that the adjustment and/or more in the case where considering true load known to component
New known load-bearing capacity model.
This method can be applied to each motor vehicle, wherein should according to the component of vehicle-mounted energy net up to the present
The current state of load, requirement and/or aging and component gives the unlatching of determining driving functions.Here, this method can answer
For in each motor vehicle, the vehicle-mounted energy net of the motor vehicle has a high security significance, which is for example related to can be with
Execute slide operation or recycling motor vehicle and/or for execute increasingly automated, full-automatic or autonomous running from
Dynamicization motor vehicle.When execution automates driving functions, the mould of motor vehicle is automatically controlled with therefore manipulation and/or adjusted
Block, such as engine, driving device, transfer, brake apparatus and/or electric braking force booster, in corresponding running
The track of motor vehicle is influenced by these modules.At least some steps of the method proposed can be by monitoring unit and/or control
Execute to control equipment software support.To this it is also possible that by the Integrated Simulation of operation execution to the existing of vehicle-mounted energy net
It controls in equipment or existing component, such as in the coupling element being integrated between the channel of vehicle-mounted energy net.
Other advantages of the invention and configuration scheme are obtained from the description and the appended drawings.
It can be readily appreciated that the aforementioned and feature also to be illustrated below not only can with the combination that illustrates respectively and
And with other combinations or can be used alone, without departing from the scope of the present invention.
Detailed description of the invention
Fig. 1 is to illustrate an example of the vehicle-mounted energy net for illustrating motor vehicle, for the example, using according to the present invention
The embodiment of device can execute embodiment according to the method for the present invention.
Fig. 2 is to illustrate the embodiment for illustrating the apparatus according to the invention.
Fig. 3 shows the implementation according to the method for the present invention of the embodiment using the apparatus according to the invention in Fig. 2
The diagram of mode.
Fig. 4 shows the thin of the operational mode that can use the realization of vehicle-mounted energy net in the range of the embodiment of method
Section.
Specific embodiment
The present invention schematically shows by the embodiment in attached drawing and is then described in detail with reference to the accompanying drawings.
It is associated with and is comprehensively described attached drawing, distributes identical appended drawing reference to same parts.
The example of the vehicle-mounted energy net 2 of motor vehicle schematically shown in Fig. 1 includes first passage 4 and second channel
6, it is basic onboard power system that first passage, which is also referred to as,.Two channels 4,6 are connected with each other by direct current transducer 8 herein.As component,
The first passage 4 of vehicle-mounted energy net 2 includes starter 10, generator 12, the first battery 14, at least one non-security important consumption
First customer 18 of electric appliance 16 and at least one security-critical.Second channel 6 include the second battery 20 and at least one
Second customer 22 of security-critical is used as component.Here, by the first customer 18 of at least one security-critical implement to
A few function can redundantly be implemented by the second customer 22 of at least one security-critical.The customer 18 of security-critical,
22 are referred to as the customer of safety-critical.
Regulation: two channels 4,6 have voltage as operation parameters herein, and the value of the voltage in two of them channel 4,6 exists
This is identical and is for example respectively 12 volts.By the way that two channels 4,6 are arranged, the vehicle-mounted energy net 2 is redundantly constructed.Utilize vehicle
The function that the automation of motor vehicle travels may be implemented in the mentioned component for carrying energy grid 2.Although it is envisaged that two logical
Road 4,6 has different voltages.
The apparatus according to the invention 24 include by the embodiment that Fig. 2 is schematically shown motor vehicle vehicle-mounted energy net
25, wherein the vehicle-mounted energy net 25 especially includes multiple customers as component 28,30,32.About the vehicle-mounted energy net 25
Details is obtained from Fig. 4.Here, these components 28,30,32 constitute the component layer 26 of vehicle-mounted energy net 25.It is given in system layer 34
Vehicle-mounted energy net 25 distributes monitoring unit 36, which includes being configured to dividing for executing as state for diagnostic module 38
Analysis this system diagnostics module, be configured to prediction module 40 module for executing prediction as state analysis and
The module of load-bearing capacity module 42 is configured to as component, load-bearing capacity model or such as is preserved in the load-bearing capacity module
It is saved by reading.Prediction module is used for the determining section in the case where considering the load-bearing capacity model in load-bearing capacity module 42
The load of part 28,30,32, wherein determining the characteristic value of the reliability of component 28,30,32.These reliability characteristic values are predicted
Module 40 is used to analyze and predict the state of vehicle-mounted energy net 2,25.Here, load-bearing capacity module 42 includes vehicle-mounted energy net
The load-bearing capacity model of component 28,30,32.In addition, system layer 34 includes being configured to the module of energy management module 44, the module
It is connect with monitoring unit 36 and with component 28,30,32.In addition, the vehicle layer 45 of motor vehicle includes control equipment 46.
In the embodiment of the method using the device 24 at least with monitoring unit 36, by the portion of vehicle-mounted energy net 25
Part 28,30,32 provides physics operation parameters, such as physical state parameter of component 28,30,32, these objects to monitoring unit 36
Operation parameters are managed by determining in sensor operational process.In addition, each component 28,30,32 can be closed to the transmitting of monitoring unit 36
In the information of its state, such information is for example joined by the physical state measured at critical positions in vehicle-mounted energy net 25
The value of amount is supplemented.In addition, also being provided about at least one corresponding component 28,30,32 up to the present to monitoring unit 36
Load information, so far determining value of the load based on physics operation parameters.Based on these, made using monitoring unit 36
About operational mode, the judgement of the topologically specific unlatching of the failure cause of component 28,30,32 and automation driving functions.
For each failure cause and each utilization possible operational mode of motor vehicle, operation is provided for the topology in motor vehicle structure
The prediction of mode and when necessary other function, such as parts swap and next time, periodically workshop checked, for example for main inspection
(HU) unlatching of planning and requirement is left.
Here, as motor vehicle operational mode and/or driving functions exemplary illustration normally travel 48, recycling 50 and
Slide operation 52.Operation 52 is slided here, can execute in automation traveling.Using monitoring unit 36, according at least one
The state of component 28,30,32 and/or entire vehicle-mounted energy net 25 judges, allows to open or must refrain from motor vehicle
Driving functions are automated, or must come out or can continue to execute corresponding operational mode.About this corresponding information
It is supplied to the control equipment 46 of motor vehicle.In addition, providing herein: the information detected in the embodiment of method passes through wireless
Electricity is transmitted to the fixed central location 54 in position via internet, and wherein the unit 54 is it is so structured that database and/or workshop.
Also provide in this case: central location 54 exchanges information with monitoring unit 36.
It is single that combination Fig. 2 in Fig. 3 was illustrated shows the monitoring when executing embodiment according to the method for the present invention
Possible distribution and information flow in member 36.It predicts and borrows here, being executed by monitoring unit 36 by prediction module 40
Diagnostic module 38 is helped to execute diagnosis.Here, being that diagnostic module 40 provides the external load of component 28,30,32 by interface 56
Capability model.Alternatively or additionally it is possible that load-bearing capacity model is stored in prediction module 40.It can equally set
Think, each component 28,30,32 carries identifier, and affiliated load-bearing capacity model can be obtained from internet using the identifier.
This is externally provided with the first input unit 58, is prison during the continuous service of vehicle-mounted energy net 25 by the input unit
It regards unit 36, as prediction module 40 provide the load data of component 28,30,32 herein.Load data is from physical state parameter, example
Such as the change curve export of the time correlation of electric current, voltage and temperature.In order to determine such change curve, receive during operation
Collect the value of physical state parameter.It is provided for diagnostic module 38 about component by component 28,30,32 via secondary input device 60
28, the information of 30,32 possible breakdown.It is diagnostic module 38 via third input unit 62 and is therefore also monitoring unit 36
Following information is provided: be herein about physical state parameter value, for example vehicle-mounted energy net 25 run during for component 28,
30, the instantaneous value of 32 electric current, voltage and/or the temperature obtained.In addition, by input unit 62 can for diagnostic module 38 and
Therefore additional physical state parameter also is transmitted for monitoring unit 36, such as in vehicle-mounted energy net 25 at selected position
Instantaneous current value, voltage value and/or the temperature value of measurement.
The load-bearing capacity model of component 28,30,32 is by prediction module 40 based on external load-bearing capacity model and load
Data are generated and are saved in prediction module 40.In addition, from the load data and load-bearing capacity mould of component 28,30,32
Type 64 determines the reliability characteristic value of component 28,30,32, such as component 28,30,32 is instantaneous based on aging and/or abrasion
Failure probability.The other load-bearing capacity model of other manufacturers can be provided via interface 56.From this, based on abrasion
The probability 66 of the failure of calculating unit 28,30,32.Furthermore the second probability of the unsafe condition of entire vehicle-mounted energy net 25 is calculated
68, wherein considering the operational mode, the aspect 70 of the topology of failure cause and vehicle-mounted energy net 25 that are related to motor vehicle.For other
Aspect 70 and it is therefore directed to each operational mode and each possible failure cause, reliability based on component 28,30,32 is special
At least one reliability characteristic value of value indicative calculating vehicle-mounted energy net 25.Structure in a motor vehicle is equally determined using other aspects 70
The topology for the component 28,30,32 made, the topology have influence at least one reliability characteristic value of vehicle-mounted energy net 25.Institute
The value of determining probability 66,68 is compared comparing in 74 with corresponding limiting value 72, wherein determining vehicle-mounted energy net 25
The risk of failure.Additionally, the conclusion about the upcoming replacement of component 28,30,32 is possible, and the replacement is in ideal
In the case of regularly workshop check in the range of can be performed.
It is examined when checking 76 based on the diagnosis of component 28,30,32 transmitted via input unit 60 by diagnostic module 38
Look into the state of component 28,30,32.From this, system diagnostics is executed, component 28,30,32 can be carried out using the system diagnostics
The reasonableness check of diagnosis and the unknown failure for identifying these components 28,30,32.Pass through the physics shape of component 28,30,32
The physical state parameter optionally selected in the value and vehicle-mounted energy net 25 of state property transmitted via input unit 62 executes
System diagnostics 78 can carry out the reasonableness check of the state of component 28,30,32 using the system diagnostics and identify vehicle-mounted energy
Measure the unknown failure in net 25.Furthermore faulty component 28,30,32 can be identified.Finally, providing about vehicle-mounted energy net 25
Currently practical state report 80, diagnosis and vehicle-mounted energy net 25 of the virtual condition by superposition component 28,30,32
System diagnostics 78 determines.
It is executed using monitoring unit 36 and calculates 82.In addition, being stored with component 28,30,32 and vehicle in monitoring unit 36
It carries the load-bearing capacity model 84 of energy grid 25 or these models can be conveyed via interface 56.
In the method for execution, the first income 86 for being directed to system layer 34 and being therefore directed to 25 layers of vehicle-mounted energy net is generated,
The income includes and the communication with energy management apparatus 44 to the load management device for apparatus of repair parts 28,30,32
It influences.Second income 88 is arranged for motor-driven deck 45 herein.Second income include support for unlatching and/or for
Automate the unlatching judgement of driving functions, by the way that the reliability of the traveling strategy of adaptation improves, availability improves, from automation
Even if running be converted to manual drive operation when safety obtain and motor vehicle automation running in component
28,30,32 failure but without driver's intervention in the case where enter the necessity in safe condition.
Third income 90 is arranged for exploitation from now on herein.The third income includes being based on a large amount of components 28,30,32
Improvement to load-bearing capacity model 84 and based on true load known to component 28,30,32 to load-bearing capacity model 84
Improvement.
In the embodiment of the method for execution, from the angle of product safety, executed using monitoring unit 36 for monitoring vehicle
The step of carrying energy grid 25, wherein the functional safety and reliability of realization component 28,30,32 and vehicle-mounted energy net 25
Comprehensively consider.Provide herein, be energy source, such as generator 10(Fig. 1 in this example), electrical storage, such as battery 14,
20, direct current transducer 8(Fig. 1), at least one component 28,30,32 of energy distributor either customer 16,18,22 is by object
The value of reason operation parameters is transmitted to monitoring unit 36 as characteristic value, exports examining at least one component 28,30,32 by these values
It is disconnected to be used as state analysis.Based on these, the physical reasonableness inspection of the diagnosis of one side execution unit 28,30,32, equally quilt
It is transmitted to monitoring unit 36, and the reliability of another aspect prediction unit 28,30,32 and vehicle-mounted energy net 25.Herein really
Fixed operation parameters depend on possible operational mode, failure cause, the used of vehicle-mounted energy net 25 in a motor vehicle and open up
Flutter, the operation duration of component 28,30,32 and its current loads, the voltage applied on the terminal of component 28,30,32 and
It flows through the electric current of component 28,30,32 and depends on the battery of other physical state parameters, such as component 28,30,32 when necessary
14, the state of the diagnosis of 20 charged state or temperature and component 28,30,32.
Based on the calculating of the performed state about component 28,30,32 and vehicle-mounted energy net 25, monitoring unit 36 will
It is recommended that being transmitted to control equipment 46, which, which indicates, allows to open or must refrain to automate driving functions.Alternatively, it supervises
Characteristic value is transmitted to control equipment 46 depending on unit 36, the characteristic value includes about component 28,30,32 and/or entire vehicle-mounted
Energy grid 25 and/or its conclusion dependent on the state of the part of operational mode.Other than these characteristic values, it may be considered that table
The characteristic value of the replacement of bright component 28,30,32 or the permission opening time comprising different operational modes.Here, monitoring unit 36
Including two modules, i.e. diagnostic module 38 and prediction module 40, wherein monitoring unit 36 is subdivided into these modules.
Other are in vehicle-mounted energy net according to the physics operation parameters of the state parameter as component 28,30,32 and when necessary
The value of the physical state parameter measured at determination position in 25, using diagnostic module 38 about vehicle-mounted there are being checked whether failure
Energy grid 25.Here, mutually checking the reasonability of the value of operation parameters and in order to execute diagnosis inside equipment and in order to mention
It is analyzed it for the report about current state.Also considered herein about including component 28,30,32 and its configuration
Vehicle-mounted energy net 2,25 topology.Furthermore consider motor vehicle and the therefore currently valid operation of difference of vehicle-mounted energy net 2,25
Mode.Herein it is possible that monitoring each, for example instantaneous effective operational mode, other operation moulds can also be addedly checked
Whether formula works in current state.If currently operation and driver want to switch motor vehicle in manual drive mode
To automation driving mode, then check whether vehicle-mounted energy net 2,25 is normal in the range of allowing to open automation running
Operation.Here, operational mode, which is for example configured to start and stop stage, normally travel 48, recycling 50 or cutting internal combustion engine, slides operation
52.The state of vehicle-mounted energy net 2,25 can be determined from the information about corresponding operational mode.It is obtained according to corresponding operational mode
The different structure in vehicle-mounted energy net 2,25 because the component 28,30,32 determined is inactive, such as is sliding operation
, thus there is structural difference in topology in generator 12 in 52, which must equally be considered and may cause other
Inefficacy mechanism.
If sliding operation 52 for motor vehicle execution cutting engine, provide in the first example, at least one
Battery 14,20(Fig. 1) it discharges in determining boundary as component 28,30,32, because of the hair as other component 28,30,32
Motor 12(Fig. 1) it is not driven by internal combustion engine.However, the negative charging balance movement of at least one battery 14,20 obtained herein is just
Often.
Providing in the second example, generator 12(Fig. 1) report has the failure-free operation of average load, wherein however the
One battery 14(Fig. 1) energy content continuously decline, this for example shows energy management apparatus 44, generator 12(Fig. 1) control
Device or first battery 14(Fig. 1) and/or the battery 14 battery sensor failure.Nowadays it cannot be identified according to the prior art
By the failure that the second example describes, because of the fortune of each of mentioned component 28,30,32 all reporting no faults itself
Row.However, in the embodiment of method, from system layer 34 consider and identify state report totality show failure and/or
Aging, what the state report was only up separately for its own.
If the event for the security-critical for damaging potential security target is identified by monitoring unit 36 in the range of method
Barrier and/or security-critical aging, then regulation be not turned on automation driving functions and/or to automation traveling in operation mould
Formula, the transformation for example slided operation 52 or recycle 50.If motor vehicle is in manual drive mode and should be switched to cunning
Row operation 52, but there is battery 14,20 very few energy to restart engine, then does not allow motor vehicle to be switched to and slide
Operation 52.Instead of this, can be set control is handed to about the failure of the state of vehicle-mounted energy net 25 and/or the information of aging
Standby 46, wherein forbidding executing automation driving functions or terminating the automation that may instantaneously execute traveling when next possible
Function.
Therefore, the result of diagnosis be used to preventing or opening automation driving functions, wherein by digital value, such as zero or one
It is transmitted to control equipment 46, it is to prevent or open corresponding automation driving functions now which, which indicates,.However it can also lead to
The information for the state that state parameter is provided about vehicle-mounted energy net 25 is crossed, which can have between such as 0% and 100%
Value and have may limit intermediate steps.Based on these, using control equipment 46 it can be concluded that vehicle-mounted energy
How crucial the state for measuring net 25 is on quantitative, allows to take the counter-measure that may be classified.
In a kind of substitution or supplement embodiment, control equipment 46 inquires determining automation from monitoring unit 36
Driving functions, such as highway cruise.The history also based on model 84 being worth so far based on physics operation parameters, prison
The expected load in corresponding driving functions of component 28,30,32 is determined depending on unit 36.Based on these, as long as expectable
Load be excessively high, so that it may open or forbid corresponding driving functions.If driving functions cause smaller load, can
Continue to realize and therefore also opens the driving functions.
In the set embodiment of method, also provides and be directed at least one component 28,30,32 and/or vehicle-mounted energy
Measure the prediction of the state from now on of net 25.Here, by 28,30,32 40 transfer charge data of prediction module of component.Based on component
28,30,32 such load data and load-bearing capacity model determine the reliability characteristic value of component 28,30,32, such as lose
Imitate probability.Here, load-bearing capacity model integrated is in prediction module 40.The portion of other manufacturers also may be implemented via interface 56
The load-bearing capacity model of part.
For each operational mode, is calculated in prediction module 40 and be directed to probability below: the component 28 of security-critical,
30,32 energy supply may be limited and/or unavailable due to wear effects.Here, in each operational mode, multiple mistakes
Effect reason may be enough existing energy supply the reason of.The failure cause is correspondingly true in reliability engineering
It is fixed.The example of these failure causes is the component 28,30,32 for the security-critical being considered in the Reliability modeling of itself respectively
On over-voltage or under-voltage because the combination in different reliability engineerings leads to the failure of the component 28,30,32 of security-critical.
Therefore, the calculating of probability depends on topology, the operational mode considered and the failure cause of vehicle-mounted energy net 25.In order to calculate this
Probability travels, for each operational mode, such as automation traveling, with the automation slided with the automatic of recycling
Change traveling, normally travel etc., saves reliability block diagram, such as fault tree, Ma Erke in combination with each possible failure cause
Husband's model or the like, the reliability block diagram provided using the crash rate of component 28,30,32 currently calculated data and
It calculates.Reliability block diagram provides the component of entire vehicle-mounted energy net 25 for the comparable method to System reliability modeling
28,30,32 failure, aging and/or the criticality of abrasion.
Considering its structure not in the modeling or alternative of reliability block diagram is the circuit diagram towards vehicle-mounted energy net, and
It is the combination towards failure or aging, the failure or aging cause the energy with following voltage value to supply based on failure cause
It answers, the voltage value is less than previously given minimum value or greater than previously given maximum value and in previously given voltage zone
Between except be directed through the customer of security-critical.
In the range of the embodiment of method, in the exemplary situation of third it is possible that as vehicle-mounted energy net 25
Component 28,30,32 direct current transducer 8(Fig. 1) failure, key state is directed to, because of the failure by direct current transducer 8
Determine that ground is forced to discharge to battery 20, this causes under-voltage in the second channel 6 as failure cause.By to Reliability modeling
To consider the failure.
Provide in the fourth example, first passage 4(Fig. 1) in the first battery 14 failure.If for motor vehicle addition
Ground will also slide operation 52 and be set as driving functions, turn off generator 12(Fig. 1 in this slides and runs) and therefore generate more
Thus a small amount of electric energy can then be generated as the under-voltage of failure cause.This also pays attention in reliability block diagram.Herein really
Fixed conditional probability 74 is compared with limiting value 72.Here, only when the virtual condition of vehicle-mounted energy net 25 is run just
Chang Shi just opens the driving functions of safety-critical by the system diagnostics of the virtual condition of vehicle-mounted energy net 25.It herein can also be with
Determine conditional probability comprising assuming that functional ability virtual condition in the case where vehicle-mounted energy net 25 safety close
The shape probability of state of key.In this case, monitoring unit 36 reports which operational mode is executing automation to control equipment 46
Allow to open when driving functions and which does not allow, wherein can also prevent completely and therefore forbid automation traveling function
Energy.
Other optional measures for optimization can also be executed in the range of method.If device 24 is configured to learn by oneself
Corresponding operation reserve can then be matched with and require behavior by the system of habit, it is possible thereby to optimally use component 28,30,32.
In addition, monitoring unit 36 can exchange data with central location 54.Thus opening from now on for vehicle-mounted energy net 25 can be especially provided
The real ride characteristic of hair and/or design.In addition, can by the field data for the identical component of structure for analyzing multiple motor vehicles
To improve load-bearing capacity model.It is same it is adjustable, change and/or supplement already existing load-bearing capacity model.Furthermore may be used
To carry out automated communication with central means 54.It, especially can be with if predicting the limited service life for component 28,30,32
The component 28,30,32 related separately to is replaced in time.It can equally be predicted by navigation data in the case where considering route characteristic
Load.
The vehicle-mounted energy net 25 being schematically shown specifically in fig.4 equally includes first passage 100 and second channel
102, they pass through as the possible component 28 of vehicle-mounted energy net 25,30,32(Fig. 2) direct current transducer 101 connect.Make
For component 28,30,32(Fig. 2), first passage 100 includes generator 104 and the first battery 106.As component 28,30,32(figure
2), second channel 102 includes the second battery 108, starter 110, the first customer 112 of security-critical and non-security important
The second customer 114.Fig. 4 is with being also shown the first ground potential points 116, the second ground potential points 118, third of vehicle-mounted energy net 25
Potential point 120, the 4th ground potential points 122, the 5th ground potential points 124 and the 6th ground potential points 126.Vehicle-mounted energy net 25 these
The component 28 that is previously mentioned, 30,32,100,101,102,104,106,108,110,112,114,116,118,120,122,124,
126 are also shown schematically in the figure in the process of Fig. 4 b, 4c, 4d, wherein component 28,30,32,100,101,102,104,106,
108,110,112,114,116,118,120,122,124,126 series connection and/or parallel connection in logic herein.
In the embodiment of method, for vehicle-mounted energy net 25 and therefore also for its component 28,30,32(Fig. 2),
Normally travel 48, recycling 50 can be executed as driving functions and/or operational mode and slide operation 52.
Executing normally travel 48(Fig. 2) when, the machinery that will be generated in the running engine of motor vehicle by generator 104
It can be converted to the electric energy for being supplied to two batteries 106,108, wherein charging to two batteries.In addition, in normally travel 48
In equally provide energy to the customer 112 of security-critical and non-security important customer 114.In this regard, such as the stream in Fig. 4 b
Shown in journey figure, electric energy is from least one ground potential points 116,118,120s, from generator 104 or the first battery 106 via
One channel 100, direct current transducer 101, second channel 102 are transmitted to the customer 112 and ground potential points 124 of security-critical.
It is provided in recycling 50, the mechanical energy from motor vehicle motion is converted to electric energy by generator 104, and the electric energy is herein
It is equally provided to the customer 112 and non-security important customer of two batteries 106,108 and security-critical.In this regard, figure
Process in 4c illustrates, and electric energy at least from ground potential points 120s, turns from generator 104 via first passage 100, direct current
Parallel operation 101, second channel 102 are transmitted to the customer 112 and ground potential points 124 of security-critical.
And sliding operation 52(Fig. 2) in regulation, deactivate generator 104.It is supplied for the customer 112 to security-critical
The electric energy of electricity is sliding operation 52(Fig. 2) in provided by two batteries 106,108.Such as by mentioned operational mode table
It is bright, therefore the different models of vehicle-mounted energy net 25 are considered for each operational mode for state analysis.In this regard, in Fig. 4 c
Process illustrate, electric energy from least one ground potential points 116,120s, from the first battery 106 via first passage 100,
Direct current transducer 101, second channel 102 are transmitted to the customer 112 and ground potential points 124 of security-critical.
For state analysis and it is accordingly used in diagnosis current state and/or method for predicting state from now on can be with needle
All components 28,30,32 for being configured to provide electric energy of vehicle-mounted energy net 2,25 are executed.Therefore it is possible that extremely
Few physics, the customer 112 that security-critical is given in the previously given section of the value of this at least one electricity operation parameter
Supply electric energy.Here, the section is by minimum value and therefore, the upper limit and maximum value are determined with therefore lower limit.This is related separately to
The upper and lower bound of voltage and or current as physics operation parameters.Here, such boundary and/or non-security important
Customer 114 can optionally pay attention in corresponding state analysis in demand.
In the range of being configured to the state analysis of diagnosis, the diagnosis of at least one component 28,30,32 passes through all components
28,30,32 and reasonability therefore is checked as the diagnosis of the entire vehicle-mounted energy net 25 of system, wherein each portion can be identified
The failure undiscovered so far of part 28,30,32, because component 28,30,32 is not individually but system is integrally examined
It is disconnected, wherein it is contemplated that the interaction of component 28,30,32.Therefore, the diagnosis of component layer 26 by the diagnosis of system layer 34 come
Check reasonability.Therefore it is possible that each faulty component 28,30,32 is executing individually diagnosis in configuration scheme
Shi Keneng is not identified as faulty, and 28,30,32 pairs of the faulty component at least one other component 28,30,32
Effect can be identified in the diagnosis of system entirety.
In addition, concentrated in monitoring unit 36 comprehensive each diagnosis as a result, wherein single for each component 28,30,32
Diagnosis on only execution unit layer 26.In the diagnosis in system layer 34, the characteristic value as component 28,30,32 is at least determined
And/or it measures at least one physics operation parameters and is used as characteristic value equally at least determining when necessary and/or measures entire vehicle-mounted
At least one physics operation parameters of energy grid 25.
In the state analysis for being configured to prediction, at least one component 28,30,32, the relevant characteristic value of load, spy
It is not that the relevant physics operation parameters of load are detected and store during operation and are therefore written to monitoring list together
Member 36 is configured in the memory of storing data.Value detected is converted into the defined level of load.With
In the subsequent control of the load-bearing capacity of component 28,30,32, the failure probability of component 28,30,32 is determined.It is possible thereby to for example
The related to operational mode and/or failure cause of vehicle-mounted energy net 25 is calculated in the case where considering the topology of vehicle-mounted energy net 25
Failure probability, wherein it is contemplated that the arrangement and its connection to each other of topology, particularly component 28,30,32 and/or its is right
The distribution in channel 100,102.By the load up to the present of outer push part 28,30,32, can all parts 28,30,
32, in the component layer 26 of typically at least one component 28,30,32 and in the system layer 34 of entire vehicle-mounted energy net 25 and
Therefore prediction is executed for all components 28,30,32.
In addition, the state analysis that the construction in component layer 26 of all parts 28,30,32 is prediction can pass through system
The prediction such as in the state analysis for being configured to prediction of entire vehicle-mounted energy net 25 on layer 34 checks reasonability.In conduct
In the prediction of state analysis, the data being written together are processed into the relevant characteristic value of load and feature relevant to load
Value, particularly the relevant physics operation parameters of load are detected together and store and be therefore written to monitoring unit 36
It is configured in the memory of storing data.These data are compared with the load-bearing capacity model of component 28,30,32, can
Therefrom to determine current reliability characteristic value.Here, addedly it is possible that by according to relevant mistake in configuration scheme
Effect mechanism describes the reliability structure of operational mode to determine reliability characteristic value.By extrapolating, load up to the present can be with
The reliability prediction in the sum in component layer 26 in system layer 34 is executed, they can mutually carry out reasonableness check.From to
Load so far can execute the prediction of state from now on the load-bearing capacity model saved.
It is possible that at least one is configured on the state analysis diagnosed, i.e. system layer 34 in other configuration scheme
Diagnosis and/or component layer 26 on diagnosis the state analysis, i.e. pre- in system layer 34 of prediction is configured to by least one
Survey and/or component layer 26 on prediction check reasonability and vice versa.If be now based at least one component 28,
30, at least one diagnosis of 32 currently practical state and the driving functions of such as automation can be executed, then this can be due to
At least one of the state from now on of at least one component 28,30,32 is predicted and is prohibited, because at least one prediction usually
The value of a greater amount of operation parameters is considered in the case where than at least one diagnosis.
State analysis for diagnosing and predicting can continue online and/or in vehicle-mounted energy net 2,25 and motor vehicle
It is executed during operation.
Claims (10)
1. the method for the vehicle-mounted energy net (2,25) for running motor vehicle, wherein the vehicle-mounted energy net (2,25) is with multiple
Component (28,30,32), wherein executing examining for virtual condition according to the value of the physics operation parameters of all components (28,30,32)
The first state analysis of disconnected all components (28,30,32) as vehicle-mounted energy net (2,25), wherein according to a component respectively
The value of the physics operation parameters of (28,30,32) come be individually performed the diagnosis of virtual condition as component respectively (28,30,
32) at least one second state analysis, wherein at least one second state analysis of a component (28,30,32) is logical respectively
The first state for crossing all components (28,30,32) is analyzed to check reasonability.
2. according to the method described in claim 1, wherein the first of all components (28,30,32) of vehicle-mounted energy net (2,25)
State analysis only employs the result of at least one the second state analysis of a component (28,30,32) respectively.
3. method according to claim 1 or 2, wherein motor-driven to judge according to the result of at least performed state analysis
The unlatching for the driving functions that at least one of vehicle is supported by least one component (28,30,32) of vehicle-mounted energy net (2,25).
4. according to the method described in claim 3, wherein judging that the automation of motor vehicle drives the unlatching of function.
5. the method according to one of preceding claims, for vehicle-mounted energy net (2,25) at least one component (28,
30,32) Lai Zhihang the method, the component be configured to provide electric energy.
6. the method according to one of preceding claims, wherein checked by being analyzed via first state at least one
The reasonability of two-state analysis identifies the failure of at least one component (28,30,32).
7. the method according to one of preceding claims, wherein according to the load-bearing capacity of at least one component (28,30,32)
Value execute the prediction state analysis other as at least one of the state from now on of at least one component (28,30,32),
The result of the other state analysis of at least one middle performed by come judge motor vehicle at least one by vehicle-mounted energy net
The unlatching for the driving functions that at least one component (28,30,32) of (2,25) is supported.
8. the device for the vehicle-mounted energy net (2,25) for running motor vehicle, wherein the vehicle-mounted energy net (2,25) is with multiple
Component (28,30,32), wherein described device has the monitoring unit (36) for possessing diagnostic module (38), wherein the diagnosis mould
Block (38) is configured to execute the diagnosis of virtual condition according to the value of the physics operation parameters of all components (28,30,32)
The first states of all components (28,30,32) as vehicle-mounted energy net (2,25) is analyzed, according to component respectively (28,
30,32) diagnosis of virtual condition is individually performed as component (28,30,32) respectively in the value of physics operation parameters
At least one second state analysis, and analyzed by the first state of all components (28,30,32) come to a component respectively
At least one second state analysis of (28,30,32) carries out reasonableness check.
9. device according to claim 8, described device has at least one sensor, for detecting at least one component
The value of at least one physics operation parameters of (28,30,32).
10. device according to claim 8 or claim 9, described device has the control for executing at least one driving functions
Equipment (46), wherein the monitoring unit (36) is configured to provide to the control equipment (46) about suggestion below:
Allow to open or forbid or leave at least one driving functions.
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| DE102016218567.5 | 2016-09-27 | ||
| PCT/EP2017/072539 WO2018059906A1 (en) | 2016-09-27 | 2017-09-08 | Method for operating an on-board power supply system |
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| JP (1) | JP6768152B2 (en) |
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| DE102019128359A1 (en) * | 2019-10-21 | 2021-04-22 | Bayerische Motoren Werke Aktiengesellschaft | Method for operating a motor vehicle |
| DE102020212277A1 (en) | 2020-09-29 | 2022-03-31 | Robert Bosch Gesellschaft mit beschränkter Haftung | Method and device for determining a remaining service life based on a predictive diagnosis of components of an electric drive system using artificial intelligence methods |
| WO2023095342A1 (en) * | 2021-11-29 | 2023-06-01 | 日産自動車株式会社 | Power supply system and method for controlling power supply system |
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| WO2018059906A1 (en) | 2018-04-05 |
| JP6768152B2 (en) | 2020-10-14 |
| DE102016218567A1 (en) | 2018-03-29 |
| JP2019533416A (en) | 2019-11-14 |
| EP3519251A1 (en) | 2019-08-07 |
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