EP3746802A1 - Messmodul für ein bordnetz und zugehöriges bordnetz für ein fahrzeug - Google Patents
Messmodul für ein bordnetz und zugehöriges bordnetz für ein fahrzeugInfo
- Publication number
- EP3746802A1 EP3746802A1 EP19700451.8A EP19700451A EP3746802A1 EP 3746802 A1 EP3746802 A1 EP 3746802A1 EP 19700451 A EP19700451 A EP 19700451A EP 3746802 A1 EP3746802 A1 EP 3746802A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- measuring
- electrical system
- measurement
- vehicle electrical
- signals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000005259 measurement Methods 0.000 title claims description 203
- 238000001514 detection method Methods 0.000 claims description 69
- 230000000875 corresponding effect Effects 0.000 claims description 39
- 238000004891 communication Methods 0.000 claims description 29
- 238000012545 processing Methods 0.000 claims description 21
- 238000004364 calculation method Methods 0.000 claims description 16
- 230000003287 optical effect Effects 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000005094 computer simulation Methods 0.000 claims description 4
- 238000009529 body temperature measurement Methods 0.000 description 11
- 238000011156 evaluation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000000053 physical method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0038—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to sensors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0092—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption with use of redundant elements for safety purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/12—Recording operating variables ; Monitoring of operating variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/25—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
- G01R19/2506—Arrangements for conditioning or analysing measured signals, e.g. for indicating peak values ; Details concerning sampling, digitizing or waveform capturing
Definitions
- the invention relates to a measuring module for a vehicle electrical system according to the preamble of independent claim 1.
- the present invention is also an electrical system for a vehicle with such a measuring module.
- vehicle electrical systems are known for vehicles which comprise at least one onboard power supply component, at least one data bus and at least one cable harness.
- the wiring harness usually includes a plurality of wires.
- the at least one vehicle electrical system component is designed, for example, as a control unit, power distributor, consumer, energy storage, etc.
- the at least one vehicle electrical system component can have semiconductor power switches with integrated temperature measurement.
- Tem temperatures in control units or electrical system components directly on a printed circuit board preferably carried out on temperature-sensitive electronic components.
- the measuring module for a vehicle electrical system with the features of the independent Pa tent sections 1 and a corresponding electrical system for a vehicle with at least one such measurement module have the advantage that an error response after a metrological detection of a voltage dip in the electrical system for highly automated driving is possible as quickly as possible and Ver loaders or load paths can be switched off or alternative current paths or load paths can be switched on.
- Embodiments of the measuring module may have redundant sensors, a redundant measurement evaluation, a redundant communication and a redundant wire-guided and / or wireless connection to further on-board component components and the measuring elements located therein and / or to further measuring modules.
- the measuring module can be connected via power connectors to an on-board network component and several times by means of signal connector, optical interface and / or wireless communication to data buses or communication network works.
- Embodiments of the present invention provide a measuring module for a vehicle electrical system, which has at least one input-side electrical interface via which the measuring module with an on-board network component ver bindable, at least one output-side electrical interface, wel via the measuring module with at least one line of a wiring harness and / or can be connected to at least one data bus, and at least two measuring includes standardized which each detect a same physical measurement size redundant and output corresponding measurement signals, wherein at least two separate acquisition and processing units receive and evaluate the measurement signals and / or prepare and provide as standardized redun dante measurement data available. At least two separate transmitting and receiving devices transmit the standardized measurement data redundantly to assigned on-board network components.
- a vehicle electrical system for a vehicle with at least one Bordnetzkom component, beat at least one data bus and at least one harness, which has at least one line.
- the at least one electrical system component is connected via such a measuring module with at least one line of the wiring harness.
- Embodiments of the invention advantageously enable fail-safe detection and fail-safe provision of measurement data for current and / or voltage and / or temperature in a vehicle electrical system in a uniform manner.
- uniform measuring elements for current and / or voltage and / or temperature are used in the measuring modules.
- an evaluation of the measured data with little computational effort and with minimal delay times is possible.
- a fail-safe monitoring of the associated electrical system or part of the associated electrical system so that further measures such as the switching off of load paths can be performed.
- a parallel measuring system can be transferred to the vehicle electrical system, in that the individual measuring modules can be connected via different input interfaces to the various on-board network components and via different output interfaces to at least one data bus and / or at least one communication network.
- real measured data acquired within a respective on-board component with "reduced" data quality can also be generated by the assigned measuring module.
- these measured data generated by the associated measuring module have the advantages of synchronous data acquisition and synchronous transmission within the vehicle electrical system.
- the inserted measuring system can act as a primary system, whereby in case of failure of the newly implemented primary system, the previous measuring elements can be used within the respective on-board network component as a fallback system. In addition, the previous measuring elements can also be used as a learning system for the newly implemented primary system for generating ever better real approximated measured data.
- the detection and arithmetic unit is understood to be an electrical construction group which processes or evaluates detected measurement signals.
- the detection and arithmetic unit may have at least one interface, which may be formed in hardware and / or software.
- the interfaces may for example be part of a sogenann th system ASICs, which includes a variety of functions of the detection and Re chenody.
- the interface Stel len be software modules that are available for example on a microcontroller in addition to other software modules.
- Another advantage is a computer program product with program code, which is stored on a machine-readable carrier such as a semiconductor memory, a hard disk memory or an optical memory and is used to carry out the evaluation when the program is executed by the detection and processing unit.
- a measuring element is understood to be a structural unit which directly or indirectly detects a physical variable or a change in a physical variable and preferably converts it into an electrical measuring signal.
- the at least two measuring elements can each be connected via separate connecting lines with the at least two detection and computing units.
- a redundant evaluation and / or preparation of the measuring signals of the respective measuring element in two He injecteds- and computing units possible.
- both the measuring signals of a first measuring element and the measuring signals of a second measuring element can be evaluated and processed by two detection and computing units.
- a multiple redundancy with respect to the connection lines can be implemented within the measuring module.
- two measuring elements of a first measuring element pair can each detect a temperature at pre-given measuring points.
- two measuring elements of a second measuring element pair can each detect an electrical voltage between two predetermined measuring points.
- two measuring elements of a third measuring element pair may additionally or alternatively each detect an electrical current through a predetermined line.
- the at least two detection and computing units can evaluate and / or process the corresponding measuring signals with the same algorithms.
- the at least two transmitting and receiving devices can transmit the corresponding measured data wirelessly and / or by wire.
- the wireless transmission of the measured data can be carried out, for example, via WLAN (Wireless Local Area Network) and / or NFC (Near Field Communication) and / or Bluetooth.
- the wired transmission of the measured data can be done for example via an electric wire bus and / or an optical bus.
- At least one circuit breaker can be looped within the measuring module in at least one line, and controlled by a switching electronics disconnect or close the line.
- the on-board component can comprise at least one measuring element which can detect a physical quantity and output a corresponding measuring signal.
- at least one detection and arithmetic unit can receive and evaluate the measurement signal and / or process it and make it available as measurement data.
- at least one transmitting and receiving device can transmit the measured data to at least one assigned measuring module and / or to associated on-board network components.
- the at least one first measuring element sen a temperature at a predetermined measuring point erfas.
- At least one second measuring element may additionally or alternatively detect an electrical voltage between two predetermined measuring points.
- at least one third measuring element may additionally or alternatively detect an electric current through a predetermined line.
- the at least two detection and computing units of the at least one associated measuring module can catch the measured data of the corresponding vehicle electrical system component. As a result, the at least two detection and computing units of the associated measurement module can continuously generate the measurement data generated by the measurement signals of the first measurement element and / or the measurement data of the associated measurement element of the associated measurement signal of the associated measurement element be matched.
- the at least two detection and computation units of the associated measurement module may comprise the measurement signals of the first measurement element and / or the measurement data generated from the measurement signals of the first measurement element and / or the measurement signals of the second measurement element and / or those from the measurement signals of the second measurement element Measuring element he testified plausibility measurement data of the associated measuring element pair with the measurement data of the corresponding vehicle electrical system component.
- the at least two detection and computation units of the associated measurement module can generate and continuously improve a computational model based on the measurement data, which of the measurement data generated from the measurement signals of the first measurement element and / or from the measurement data generated from the measurement signals of the second measurement element associated Meßimplantation lies back to the measurement data of korres pondenden wiring system component.
- the at least two detection and processing units can use the generated calculation model, for example, in order to determine a current measured variable in the event of failure of the at least one measuring element of the corresponding on-board network component.
- the at least one transmitting and receiving device of the vehicle electrical system component can transmit the corresponding measurement data wirelessly and / or by wire. Since the measuring module is small, the measuring module can be integrated into a connector which connects the at least one line of the wiring harness with the zugeord Neten board network component.
- the plug can at least one Lei device connection, which establishes a current-conducting connection with a corresponding line connection of the electrical system component, and at least one first communication terminal which establishes a first communication connection with a korres pondierenden first communication port of the on-board network component.
- the first communication connection may be an optical communication connection, wherein the at least two detection and computing units determine and evaluate a quality of the first communication connection in order to detect a detachment of the connector.
- the detachment of the plug or a loose contact at the electrical connection point Ver can be detected and reported by the optical communication connection immediately by the measuring module when a Signalquali ity, for example, falls below a predetermined threshold.
- a plurality of measuring modules can form a standardized network network in which determi nistic detection times for the at least one measured variable and / or calculation times for the measured data and / or transmission rates for the measured data can be predetermined.
- the at least two detection and calculation units in the measurement module determine the same temperature values or measurement data on the basis of the measurement signals of the at least two measurement elements of the measurement module.
- the respectively plausible results supplying redundant measuring chain, which from the measuring element, the detection and Arithmetic unit and the transmission reception device of the vehicle electrical system component is used for further measurement tasks before given.
- the detection and arithmetic unit of the non-preferred unit can then be used at times primarily to determine the location of the fault and, if necessary, to remedy errors within its measuring chain.
- the nature of the fault can then be reported to another on-board network component.
- additional on-board electrical system component can then recommend the replacement of the measuring module by appropriate information to the control unit network and / or the driver or even, to establish a ge for automated driving functions demanded fault redundancy dictate.
- An exchange of the measuring module may be necessary, for example, in the case of a destroyed measuring element.
- the method be described also be used for the measures described current and voltage clamping.
- Fig. 1 shows a schematic block diagram of a detail of a Bordnet zes with a first embodiment of a Messmo module according to the invention for a vehicle electrical system.
- Fig. 2 shows a schematic block diagram of a detail of an on-board network with a second embodiment of a measuring module according to the invention for a vehicle electrical system.
- Fig. 3 shows a temperature-time diagram with a two Temperaturkennli lines.
- the illustrated embodiments of a vehicle electrical system 1, 1A, 1B for a vehicle each include at least one on-board network component SG, at least one data bus DB1, DB2 and at least one cable harness KB, which has at least one line LI, L2 has,
- the at least one on-board network component SG is connected via a measuring module 10A, 10B to at least one line LI, L2 of the cable harness KB.
- the illustrated embodiments of the measuring module 10A, 10B for an on-board electrical system 1, 1A, 1B each comprise at least one input-side electrical interface LAI, LA2, KAI, via which the measuring module 10A, 10B is provided with a On-board network component SG can be connected, at least one output-side electrical interface DA, KA2, via which the measuring module 10A, 10B with at least one line LI, L2 of a wire harness KB and / or at least one data bus DB1, DB2 ver can be prevented, and at least two Measuring elements Sl, S2, VI, V2, II, 12, which standardize each detect a same physical measurement variable redundant and output corresponding measurement signals.
- FIGS. 1 the illustrated embodiments of the measuring module 10A, 10B for an on-board electrical system 1, 1A, 1B each comprise at least one input-side electrical interface LAI, LA2, KAI, via which the measuring module 10A, 10B is provided with a On-board network component SG can be connected, at least one output-side electrical interface
- At least two separate detection and calculation units TpCl, TpC2, PpCl, PpC2 receive the measurement signals.
- the received measurement signals are evaluated and / or processed by the at least two separate acquisition and calculation units TpCl, TpC2, PpCl, PpC2 and made available as standardized redundant measurement data.
- the measuring module 10A, 10B in the exemplary embodiments of the vehicle electrical system 1, 1A, 1B is in each case integrated into a plug 10 which connects two lines LI, L2 of the cable harness KB to the associated onboard power supply component SG ,
- This integration is due to the small size of the measuring module 10A, 10B, for example
- the plug 10 in the illustrated exemplary embodiments comprises two line connections LAI, LA2 designed as plug-in receptacles, which each generate a current-conducting connection with corre sponding line connections LAI, LA2 of the on-board network component SG ,
- the plug 10 in the illustrated embodiments egg nen running as a plug receptacle first communication port KAI, which with a corresponding designed as a plug first Communication terminal KAI the on-board network component SG can produce a first Kom munikationsitati.
- the plug 10 is not yet connected to the vehicle electrical system component SG.
- the first communication link is configured as an optical communication link.
- two measuring elements S1, S2 of a first measuring element pair each detect a temperature at predetermined measuring points.
- a first measuring element S1 detects the temperature at the first line connection LAI
- a second measuring element S2 detects the temperature at the second power connection LA2.
- the two temperature measuring elements Sl, S2 are each connected to two detection and processing units TpCl, TpC2, which evaluate the corresponding measurement signals with the same algorithms Algo and / or prepare.
- a first detection and processing unit TpCl both the measurement signals of the first temperature measuring element Sl and the measurement signals of the second temperature sensing element S2
- a second detection and Re chentician TpC2 also receives both the measurement signals of the first temperature Tem perature meter Sl and the measurement signals of the second Temperaturmes selements S2.
- two measuring elements VI, V2 of a second measuring element pair each detect an electrical voltage between two predetermined measuring points.
- the two measuring elements VI, V2 respectively detect the electrical voltage between a first line LI of the cable harness KB connected to the first line connection LAI and a second line L2 of the cable harness KB connected to the second line connection LA2 connected is. Furthermore, in the exemplary embodiments illustrated, two measuring elements II, 12 of a third measuring element pair each capture an electrical current through the first line LI of the cable harness KB. In the dargestell th embodiments, the two voltage measuring elements VI, V2 and the two current measuring elements II, 12 are each connected to two detection and computing units PpCl, PpC2, which evaluate the corresponding measurement signals with the same algorithms and / or prepare.
- a third detection and processing unit PpCl both the measurement signals of the firstdersmesselements VI and the first current measuring element II and the measuring signals of the second clamping voltage meter V2 and the second current measuring element 12
- a fourth detection and processing unit PpC2 also receives both the Messsigna le of the firstdersmesselements VI and the first current sensing element II and the measuring signals of the secondmatsmesselements V2 and the second current measuring element 12.
- the various measuring elements Sl, S2, VI, V2, II, 12 are each connected via their own connection lines with the detection and processing units TpCl, TpC2, PpCl, PpC2, where For clarity, not all connecting lines are shown in the drawing.
- the first detection and arithmetic unit TpCl plausibilizes the measuring signals of the first temperature measuring element S1 with the measuring signals of the second temperature measuring element S2 of the first measuring element pair. Additionally or alternatively, the first detection and computing unit TpCl can plausibilize the measurement data generated from the measurement signals of the first temperature measurement element S1 with the measurement data of the first measurement element pair generated from the measurement signals of the associated second temperature measurement element S2. The second detection and calculation unit TpC2 plausibilizes the measurement signals of the second temperature measurement element S2 with the measurement signals of the first temperature measurement element S1 of the first measurement element pair.
- the second detection and arithmetic unit TpC2 can make the measurement data generated from the measurement signals of the second temperature measurement element S2 plausible with the measurement data of the first measurement element pair generated from the measurement signals of the first temperature measurement element S1.
- the third detection and arithmetic unit PpCl plausibility checks the measurement signals of the first voltage measuring element VI with the measurement signals of the second voltage measuring element V2 of the second measuring element pair.
- the third acquisition and processing unit PpCl can plausibilize the measurement data generated from the measurement signals of the first voltage measurement element VI with the measurement data of the second measurement element pair generated from the measurement signals of the associated second voltage measurement element V2.
- the third detection and processing unit PpCl plausibility checks the measurement signals of the first current measuring element II with the measuring signals of the second current measuring element 12 of the third measuring element pair. Additionally or alternatively, the third detection and processing unit PpCl can plausibilize the measurement data generated from the measurement signals of the first current measurement element II with the measurement data of the third measurement element pair generated from the measurement signals of the associated second current measurement element 12. The fourth detection and arithmetic unit PpC2 plausibilityizes the measurement signals of the second voltage measurement element V2 with the measurement signals of the first voltage measurement element VI of the second measurement element pair.
- the fourth detection and arithmetic unit PpC2 can plausibilize the measurement data generated from the measurement signals of the second voltage measurement element V2 with the measurement data of the second measurement element pair generated from the measurement signals of the first voltage measurement VI.
- the fourth detection and arithmetic unit PpC2 plausibility of the measurement signals of the second current measuring element 12 with the measurement signals of the first current measuring element II of the third measuring element pair.
- the fourth detection and arithmetic unit PpC2 can make the measurement data generated from the measurement signals of the second current-measuring element 12 plausible with the measurement data of the third pair of measurement elements generated from the measurement signals of the first current-sensing element II. As is further apparent from FIGS.
- a first transmitting and receiving device Txl / Rxl wirelessly transmits the measured data generated by the first detecting and calculating unit TpCl and / or that generated by the third detecting and calculating unit PpCl bound to other measurement modules 10A, 10B and / or to other on-board components SG.
- a second transmitting and receiving device Tx2 / Rx2 transmits the measurement data generated by the second detection and arithmetic unit TpC2 and / or the fourth acquisition and arithmetic unit PpC2 wirelessly and / or wired to other measurement modules 10A, 10B and / or other on-board network components SG.
- the illustrated example of embodiment of the vehicle electrical system component SG comprises a printed circuit board LP on which at least one measuring element S3, S4 is arranged, which detects a physical variable and outputs a corresponding measuring signal, wherein at least one detection - and computing unit TpC3, PpC3 receives the measurement signal and evaluates and / or processed and provides as measurement data available. min- at least one transmitting and receiving device Tx3 / Rx3 transmits the measured data to at least one associated measuring module 10A, 10B and / or to other on-board network components SG.
- two measuring elements S3, S4 detect a temperature at predetermined measuring points.
- a third temperature sensing element S3 detects the temperature at a first power transistor LT1 disposed on the circuit board LP
- a fourth temperature sensing element S4 detects the temperature at a second power transistor LT2 disposed on the circuit board LP.
- the two measuring elements S3, S4 are preferably located on the thermally sensitive components on the printed circuit board LP of the vehicle electrical system component SG.
- the temperature measuring elements Sl, S2, S3, S4 are preferably designed as Pt100, PT1000 thermosensors or semiconductor-based thermosensors, so-called "KTY sensors”.
- a not shown in detail third voltage sensing element detects an electrical voltage between a first Lei connection terminal LAI the on-board network component SG and a second line connection LA2 of the on-board network component SG.
- a non-illustrated third current measuring element detects an electric current through a line which is connected to the first line terminal LAI. As can be seen from FIGS.
- a fifth detection and arithmetic unit TpC3 of the vehicle electrical system component SG receives the measuring signals of the two temperature measuring elements S3, S4, and a sixth detection and arithmetic unit PpC3 receives the measuring signals of the third voltage measuring element and the third current selector ,
- the measurement signals are evaluated and / or processed by the two acquisition and computing units TpC3, PpC3 and made available as measurement data.
- a third transmitting and receiving device Tx3 / Rx3 transmits via the corresponding measurement data of the two detection and computing units TpC3, PpC3 wireless and / or wired.
- the detection and Re Chen units TpCl, TpC2, PpCl, PpC2 of the associated measurement module 10A, 10B receive the measurement data of the corresponding onboard power supply component SG.
- the first detection and processing unit TpCl and the second detection and processing unit TpC2 the measurement data generated from the measurement signals of the first Temperaturmessele element S1 of the measuring module 10A, 10B with those from the measurement signals of the third Temperature measuring elements S3 of the onboard power supply component SG generated measured data.
- the first detection and arithmetic unit TpCl and the second detection and arithmetic unit TpC2 compare the measurement data generated from the measurement signals of the second temperature measurement element S2 of the measurement module 10A, 10B with the measurement data generated from the measurement signals of the fourth temperature measurement element S4 of the vehicle electrical system component SG ,
- the third detection and arithmetic unit PpCl and the fourth detection and arithmetic unit PpC2 are equal to the measurement data generated from the measurement signals of the first voltage measurement element VI of the measurement module 10A, 10B and the measurement data generated from the measurement signals of the second voltage measurement element V2 of the measurement module 10A, 10B with the measurement data generated from the measurement signals of the third voltage measurement of the on-board network component SG.
- the third detection and arithmetic unit PpCl and the fourth detection and arithmetic unit PpC2 the measurement data generated from the measurement signals of the first current measuring element II of the measuring module 10A, 10B and the measured data generated from the measurement signals of the second current measuring element 12 of the measuring module 10A, 10B with the measurement data generated from the measurement signals of the third current element of the on-board network component SG.
- the detection and computing units TpCl, TpC2, PpCl, PpC2 of the associated measuring module 10A, 10B make the measurement signals of the temperature measuring elements S1, S2, the voltage measuring elements VI, V2 and the current measuring elements II, 12 and / or the measuring elements of the temperature measuring elements S1 plausible , S2, the voltage measuring elements VI, V2 and the current measuring Shiel II, 12 generated measurement data with the measured data of the corresponding board power supply component SG.
- the acquisition and computation units TpCl, TpC2, PpCl, PpC2 of the associated measurement module 10A, 10B generate and enhance a computational model RM1, RM2 based on the measurement data comparison, which is dependent on the measurement signals S1, S2, the voltage measurement elements VI, V2 and /. or the current measuring elements II, 12 to the measuring signals of the temperature measuring elements S3, S4, the third voltage measuring element and / or the third current-measuring element II, 12 of the corresponding vehicle electrical system component SG to be recalculated.
- Fig. 3 illustrates the differences between a measured in the measurement module 10A, 10B and calculated back from the calculation model RM1, RM2 temperature profile according to characteristic Tm and an actual Temperaturver run according to characteristic Tt in the corresponding wiring system component SG.
- a first mathematical model RM1 activated at a starting time has a clear deviation from the actual temperature profile at the measuring points in the corresponding vehicle electrical system component SG.
- the model quality can be steadily refined, for example, by correlation of the dynamic current load in the electrical system component SG and / or in the measuring module 10A, 10B and the resulting increase in temperature. Due to changing electrical load of the on-board network component SG in daily operation and the resulting temperature profile Tt, the calculation model can be constantly improved, as the improved second calculation model RM2 shows at a later time.
- the acquisition and calculation units TpCl, TpC2, PpCl, PpC2 use the generated calculation model RM1, RM2, in order to determine a current measurement variable in the event of failure of the measurement elements of the corresponding on-board network component SG.
- a corresponding temperature calculation model is used for the determination of a critical temperature.
- the acquisition and processing units TpCl, TpC2, PpCl, PpC2 of the associated measurement module 10A, 10B generate, based on the measurement data comparison, a computational model which is based on the measurement signals from the temperature measurement elements S1, S2, the voltage measurement elements VI, V2 and / or the current measuring elements II, 12 generated measurement data on the measurement signals from the temperature measuring elements S3, S4, the thirdensmes and / or the third current measuring element II, 12 of the corresponding generated the on-board network component SG measurement data back.
- the measuring module 10A in the illustrated exemplary embodiments can be embodied via a first current-carrying connection which can be formed between the first line connection LAI of the measuring module 10A, 10B and the first line connection LAI of the on-board network component SG, via a second current-carrying connection, which can be formed between the second line connection LA2 of the measuring module 10A, 10B and the two th line connection LA2 of the vehicle electrical system component SG, and via the first communication connection, which as optical Ver connection between a first communication terminal KAI of Messmo module 10A , 10B and a first communication terminal KAI of the on-board network component SG can be formed with the on-board network component SG ver be prevented.
- a first current-carrying connection which can be formed between the first line connection LAI of the measuring module 10A, 10B and the first line connection LAI of the on-board network component SG
- a second current-carrying connection which can be formed between the second line connection LA2 of the measuring module 10A, 10
- the measuring module 10A, 10B and the vehicle electrical system component SG are each connected via a data terminal DA to a first data bus DB1.
- the two transmitting and receiving devices Txl / Rx2, Tx2 / Rx2 of the measuring module 10A, 10B and the transmitting and receiving device Tx3 / Rx3 the on-board network component SG are able to transmit and receive the corresponding measurement data wirelessly and / or wired.
- the wireless transmission of the measured data takes place for example via WLAN and / or NFC and / or Bluetooth.
- the wired transmission of the measured data takes place on the one hand via the first data bus DB1 designed as an electrical wire bus and via the optical first communication connection.
- the corresponding measurement data can be transmitted redundantly. This redundancy enables bidirectional wireless transmission between the on-board network component SG and the measuring module 10A, 10B when the optical first communication link has failed or failed.
- the detection and processing units TpCl, TpC2, PpCl, PpC2 of the measuring module 10A, 10B determine and evaluate a quality of the first communication link in order to know a detachment of the plug 10 to it. In this case, via the measuring module 10A, 10B, an "error of the Plug-in connection "are reported to the electrical system 1, 1A, 1B, in order to park the vehicle safely as part of a safe-stop strategy can.
- the two power switches Swl, Sw2 separate or shoot the corresponding line LI, L2 controlled by a switching electronics SwE.
- the switching electronics SwE comprises switch drivers and an associated monitoring.
- the measuring module 10B is also able to connect or disconnect load paths independently or via a command from another on-board component component SG.
- a plurality of measuring modules 10A, 10B form a standardized network network, in which deterministic detection times for the at least one measured variable and / or calculation times for the measured data and / or transmission rates for the measured data are predetermined.
- Embodiments of the present invention provide a measuring module for a vehicle electrical system and a vehicle electrical system for a vehicle, which fail-safe measurement data for current, voltage, and temperature capture and failsafe in a uniform manner with the same resolution of the measurement, the same measurement method, the same sampling rate of the measurement etc. are available in the electrical system.
- Embodiments of the fail-safe measuring module according to the invention advantageously have redundant sensors, redundant measurement evaluations, redundant communication possibilities and a redundant wired and wireless connection to other on-board supply systems. components SG and the measuring elements located therein. By using uniform or identically designed sensors for current and / or voltage and / or temperature in the measuring modules, the evaluation of the detected measuring signals can advantageously be carried out with little computational effort and with minimal delay times.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018201582.1A DE102018201582A1 (de) | 2018-02-01 | 2018-02-01 | Messmodul für ein Bordnetz und zugehöriges Bordnetz für ein Fahrzeug |
| PCT/EP2019/050150 WO2019149470A1 (de) | 2018-02-01 | 2019-01-04 | Messmodul für ein bordnetz und zugehöriges bordnetz für ein fahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3746802A1 true EP3746802A1 (de) | 2020-12-09 |
Family
ID=65019491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19700451.8A Withdrawn EP3746802A1 (de) | 2018-02-01 | 2019-01-04 | Messmodul für ein bordnetz und zugehöriges bordnetz für ein fahrzeug |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3746802A1 (de) |
| CN (1) | CN111656203A (de) |
| DE (1) | DE102018201582A1 (de) |
| WO (1) | WO2019149470A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112379148B (zh) * | 2021-01-15 | 2021-04-13 | 智道网联科技(北京)有限公司 | 用于智能车载网联终端的电流检测系统及方法 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10060490A1 (de) * | 2000-12-06 | 2002-06-13 | Hella Kg Hueck & Co | Einrichtung zur Überwachung eines Bordnetzes eines Fahrzeuges |
| DE10256487B4 (de) * | 2002-12-03 | 2008-12-24 | Infineon Technologies Ag | Integrierter Speicher und Verfahren zum Testen eines integrierten Speichers |
| DE102010010845B4 (de) * | 2010-03-10 | 2024-11-14 | Bayerische Motoren Werke Aktiengesellschaft | Elektrischer Steckverbinder |
| CN202029653U (zh) * | 2011-05-11 | 2011-11-09 | 北京星河易达科技有限公司 | 一种汽车轮胎内部工况的冗余可靠监测系统 |
| DE102010041492A1 (de) * | 2010-09-28 | 2012-03-29 | Robert Bosch Gmbh | Verfahren und Anordnung zur Überwachung mindestens einer Batterie, Batterie mit einer solchen Anordnung sowie ein Kraftfahrzeug mit einer entsprechenden Batterie |
| DE102011076757A1 (de) * | 2011-05-31 | 2012-12-06 | Robert Bosch Gmbh | Sicherheitsarchitektur, Batterie sowie ein Kraftfahrzeug mit einer entsprechenden Batterie |
| DE102012205401A1 (de) * | 2012-04-03 | 2013-10-10 | Robert Bosch Gmbh | Vorrichtung und Verfahren zur redundanten Bestimmung eines über die Pole einer Batterie fließenden Batteriestroms |
| CN102621436B (zh) * | 2012-05-02 | 2014-10-29 | 中国铁道科学研究院机车车辆研究所 | 一种单车调试试验台及其采用的调试方法 |
| DE102014209439A1 (de) * | 2014-05-19 | 2015-11-19 | Robert Bosch Gmbh | Verfahren zur Überwachung einer elektrischen Versorgungsspannung an einem Versorgungsanschluss eines Digitalsensors |
| DE102014214996A1 (de) * | 2014-07-30 | 2016-02-04 | Robert Bosch Gmbh | Verfahren zum Betrieb eines Batteriesystems |
| DE102014216419A1 (de) * | 2014-08-19 | 2016-02-25 | Robert Bosch Gmbh | Verfahren zur Überprüfung mindestens einer Messeinrichtung zur Messung eines durch einen Strompfad fließenden elektrischen Stromes |
| DE102014219238A1 (de) * | 2014-09-24 | 2016-03-24 | Continental Automotive Gmbh | Überstromerkennung im Stromsensor mit Hallsensor |
| CN105150856B (zh) * | 2015-09-11 | 2017-12-01 | 安徽江淮汽车集团股份有限公司 | 一种高压系统故障诊断装置及方法 |
| US9964949B2 (en) * | 2015-12-18 | 2018-05-08 | Gm Global Technology Operation Llc | Operating modes for autonomous driving |
-
2018
- 2018-02-01 DE DE102018201582.1A patent/DE102018201582A1/de active Pending
-
2019
- 2019-01-04 WO PCT/EP2019/050150 patent/WO2019149470A1/de not_active Ceased
- 2019-01-04 CN CN201980010787.0A patent/CN111656203A/zh active Pending
- 2019-01-04 EP EP19700451.8A patent/EP3746802A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019149470A1 (de) | 2019-08-08 |
| CN111656203A (zh) | 2020-09-11 |
| DE102018201582A1 (de) | 2019-08-01 |
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