CN101194490A - Controller group comprising a plurality of controllers and memory module as a component of the controller group - Google Patents
Controller group comprising a plurality of controllers and memory module as a component of the controller group Download PDFInfo
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- CN101194490A CN101194490A CN200680020554.1A CN200680020554A CN101194490A CN 101194490 A CN101194490 A CN 101194490A CN 200680020554 A CN200680020554 A CN 200680020554A CN 101194490 A CN101194490 A CN 101194490A
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- control appliance
- memory module
- data
- communication media
- storage medium
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- 238000004891 communication Methods 0.000 claims abstract description 61
- 230000006870 function Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000004308 accommodation Effects 0.000 claims 1
- 230000005670 electromagnetic radiation Effects 0.000 claims 1
- 241001269238 Data Species 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008672 reprogramming Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/30—Definitions, standards or architectural aspects of layered protocol stacks
- H04L69/32—Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
- H04L69/322—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions
- H04L69/329—Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the application layer [OSI layer 7]
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
Abstract
The invention relates to a controller group (1) comprising a plurality of controllers (2) that are interconnected by means of a communication medium (3) for the purposes of data exchange. Said controller group (1) comprises at least one memory module (4) that is connected to the communication medium (3). During the operation thereof, at least one of the controllers (2) sends data via the communication medium (3), to be stored on the at least one memory module (4), and receives data stored in the memory module (4) via the communication medium (3). The communication medium can be a CAN bus of a motor vehicle.
Description
Technical field
The present invention relates to a kind of control appliance group that comprises a plurality of control appliances, these a plurality of control appliances are connected to each other by communication media for the purpose of exchanges data.
In addition, the invention still further relates to a kind of memory module, be used to store the service data that at least one is connected to the control appliance on the communication media together.
Background technology
By prior art, especially by the known a kind of control appliance group that comprises communication media of automotive field, a plurality of motor vehicle control appliances are connected on this communication media.Communication media for example is CAN (controller territory net) system or other field bus system arbitrarily.Control appliance connects exchange mutually about the data of communication media by private communication.Communication media can comprise fixing circuit or also can realize by radio wave and/or light wave.Control appliance for example can be constructed to the control appliance of device for controlling engine, gearbox control appliance, anti-lock braking system (ABS) or other safety function of motor vehicle, is constructed to the control appliance of electronic seat adjustment or other comfortable function of motor vehicle.
In known control appliance group, be connected to control appliance on the communication media use the storage medium that for example is constructed to eeprom memory or is constructed to flash memory be integrated in this control appliance for good and all store different vehicle datas, such as fault value and fault-signal and Configuration Values, learning value and/or adjusted value.Also promptly at these control appliances of run duration of control appliance with storage within it in the storage medium of portion, these data also can be read again from storage medium and further be handled at the run duration of control appliance by these control appliances.
In motor vehicle, control appliance usually is disposed in the position of bearing extreme loads.This load for example is the high temperature that possible temporarily be positioned at more than 100 ℃, as the high temperature that control appliance bore in the scope that for example is disposed in internal combustion engine.Near internal combustion engine, axletree and/or gearbox, also may be owing to mechanical shock and vibration, in generator and transformer, produce extreme environmental conditions owing to magnetic and electromagnetic interference field.In order in the duration of operation of the whole estimation of motor vehicle, to withstand these extreme requirements, control appliance and especially be arranged in wherein communication media must correspondingly be constructed to sane, be heat-resisting, shock-resistant and vibration resistance and opposing magnetic and electromagnetic interference field, even so that also can guarantee the safety in operation of storage medium in the whole life-span under these extreme conditions.Owing to this reason, only need the memory module that in conventional control appliance, is adopted of relatively little number of packages, and therefore these memory modules are relatively costly.
In addition, tuning safeguard measure stops opening of present device for controlling engine, makes to change the storage medium that damages.Therefore, the memory cell of the damage in the storage medium causes changing fully control appliance usually, and this and high cost interrelate, and can only be introduced to the end user difficultly, be the vehicle owner.
(EDC 17 at the control appliance of new generation of applicant Robert Bosch Co., Ltd; Electronic diesel machine controller version 17) in, the eeprom memory of control appliance inside is transferred on the flash memory, so that can save EEPROM memory module (so-called EEPROM emulation) thus fully by software emulation.Yet this solution be take a lot of trouble and easily break down comparatively speaking (for example when voltage descends), and as long as control corresponding equipment must permanent storage data, just must be at each single control appliance (electric control unit, ECU of motor vehicle; The traction control management, TCM; Anti-lock braking system, ABS; Electronic Stability Program (ESP), ESP; Or the like) self realize this solution again.In addition, flash memory component (for example in addition even EEPROM assembly) is not at frequent reprogramming (Umprogrammieren) or programming (Ueberprogrammieren) and design again.Only this is true just with the age limit of the The whole control equipment number of times in the possible reprogramming of the weak memory cell of corresponding flash memory component or EEPROM assembly.
Summary of the invention
Especially the many control appliances in the described control appliance in the automotive field all have this problem of permanent storage service data.These control appliances be connected to each other by fieldbus and mutually between swap data.The present invention based on task be, simplify and cost more lowland design control appliance to the loading in the control appliance of the storage of service data and the data of being stored when needed.
In order to solve this task, the control appliance group of described type is set out and is advised from the outset, this control appliance group has at least one and is connected to memory module on the communication media, and wherein at least one in the control appliance sends data by communication media so that store at least one memory module and receive the data that are stored in the memory module by communication media at its run duration.
Advantage of the present invention
According to the present invention, therefore storage is transferred to extraly for this reason the memory module of defined (so-called memory management module, MMM) in.This memory module is connected with communication media equally, and can pass through this communication media controlled device addressing.Make all those control appliances that service data are stored in the memory module of control appliance group exempt difficult task safety and that be subjected to the storage of operation protection in the following manner, promptly these control appliances can send to memory module with suitable manner with its data so that store and can call this data again when needed.
An important aspect of the present invention is, the storage of many dissimilar control appliances is assembled with all its safety precautions and operation precautionary measures and transfer in unique common memory module, wherein can freely select the installation site of this memory module in motor vehicle.In order to save the cost of complete new memory module, memory module also can be the part of the module that existed.For example advise the composite module formed by car-mounted computer and gateway for this reason.Yet the location that can freely select of memory module importantly.Therefore memory module for example the shielded installation in vehicle interior can realize the employing of traditional memory module, as these traditional memory modules being applied with big number of packages during electric data is handled.Therefore can give up sane especially and the therefore employing of storage medium in different control appliances of expensive inside.In control appliance itself, must pass through only emulation memory module (for example eeprom memory so far) so far of software emulation, make and transmit the service data that will store and store this service data there to memory module by communication media.Can certainly in memory module itself, coordinate the storage of the data that received.
In addition, utilize control appliance group of the present invention can in automotive field, use new communication strategy fully.Therefore for example can only alleviate burden in the following manner, promptly needn't send the message of determining (for example message of middling speed CAN) to high-speed CAN by low speed CAN again by the transfer of data of communication media (for example CAN bus) based on the communication of memory.Be alternative in this, the data of another control appliance of storage on the position of determining of control appliance in memory module are so this another control appliance can read in data from this position.
The burden that is alleviated the transfer of data by communication media by the communication based on memory possible in control appliance group of the present invention becomes clear by following example: can learn the current state of gearbox control appliance for device for controlling engine, must communicate by letter on a large scale between device for controlling engine and gearbox control appliance so far: device for controlling engine at first to the gearbox control appliance ask a question (" normal? ").The gearbox control appliance is answered device for controlling engine to answer ("No").So device for controlling engine give the gearbox control appliance propose another problem (" what fault? "), so the gearbox control appliance is made answer (" type of fault ").
Utilize the present invention, the gearbox control appliance now can be in the moment of determining, its current state is stored on the position of determining in the memory module (for example in one or more memory cell) by incident control ground.Device for controlling engine equally in the moment of determining, preferably periodically inquire about the content of the relevant position of memory module, so that learn the current state of gearbox control appliance.By the content of the memory module on the relevant position, it is information normal or that damage that device for controlling engine not only can obtain the gearbox control appliance, and also obtains the information about the type of the fault of gearbox control appliance under failure condition immediately.Therefore can cancel the large-scale data communication of passing through communication media between device for controlling engine and the gearbox control appliance.
Require favourable expansion scheme of the present invention in the dependent claims.In order to ensure the transmission that be subjected to operation protection of data from the control appliance to the memory module; suggestion has the control appliance group of the feature of claim 3; in view of the above, control appliance sends on the memory module data so that store in the mode of encrypting by communication media.Alternatively or additionally, can stipulate, in memory module, store the data that received by control appliance in the mode of encrypting according to claim 4.
Control appliance group with feature of claim 8 has the following advantages, promptly impel in memory module storage by the data that control appliance received by logical circuit, this logical circuit also impel from memory module, read the data of asking by control appliance and by communication media with the transfer of data of being read to control appliance.
Control appliance group with feature of claim 10 has the following advantages, and promptly stores the data of being stored redundantly, makes to prevent permanent loss of data better.Control appliance group with feature of claim 11 has the following advantages, and promptly when initialization control appliance group, the data in the real-time system can be copied to fast among the RAM and controlled device quick calling therefrom.
When idle running, the data that are included among the RAM can be write back on the permanent storage medium.Therefore can obviously shorten the initialization time of control appliance, because the data of being stored are available more quickly.
Another kind of solution as task of the present invention, the memory module of described type is set out from the outset, suggestion is connected to this memory module on the communication media, and this memory module have be used for the storage of this memory module by in the control appliance at least one by the data that communication media received device and be used for reading by at least one data of asking the control appliance and the device of the data that are used for being read to this control appliance transmission by communication media from this memory module.Preferably these devices are configured to the logical circuit of memory module with hardware and/or software mode.
Description of drawings
Below set forth preferred embodiment of the present invention in more detail by accompanying drawing.
Fig. 1 illustrates the control appliance group of the present invention with memory module of the present invention.
Embodiment
In Fig. 1, control appliance group of the present invention is represented with reference symbol 1 generally.This control appliance group comprises a plurality of control appliances of representing with reference symbol 2.In shown embodiment, relate to the control appliance group 1 that is used for motor vehicle.In view of the above, control appliance 2 also is control or regulates the motor vehicle control appliance of the vehicle function of determining.Especially control appliance 2 is responsible for the vehicle function relevant with function or fail safe (for example device for controlling engine, gearbox control appliance, drive propulsion are learned control appliance).Control appliance 2 can be responsible for comfortable function (for example aircondition control appliance, seat adjustment control appliance, car-mounted computer control appliance) equally.Control appliance 2 is connected to each other so that swap data by communication media 3.In shown embodiment, communication media is constructed to wired CAN bus.Yet communication media 3 can be the fieldbus of other type, or otherwise for example is implemented as wired fieldbus by optical transmission or by wireless radio transmission.CAN bus 3 comprises high-speed CAN 7, middling speed CAN8 and the low speed CAN9 that is connected to each other (solid line) by gateway 10.
In addition, memory module 4 is connected on the communication media 3.(therefore memory management module MMM) 4 is connected on low speed CAN9, middling speed CAN8 and the high-speed CAN 7 memory module.In order to consider very high performance requirement (" very high performance " requires), be provided with so-called high speed memory bus (M bus) 5 (dotted lines) alternatively.M bus 5 is not connected with communication media 3.
Control appliance group 1 of the present invention has following characteristics, be that control appliance 2 no longer is stored in their service data this locality in the inner storage medium, but these service datas are transferred on the memory module 4 by communication media 3, so data are stored in the concentrated area in this memory module.For this purpose, control appliance 2 comprises software emulation, and this software emulation will arrive storing process emulation on the storage medium of inside for by the transfer of data of communication media 3 to memory module 4.Therefore control appliance 2 also works as so far, and does not aware ideally, and the data that store are not to be stored on the inner storage medium, but is transferred on the memory module 4 and is stored in the there by communication media 3.
For the hard to bear operation protection of energy ground storage running data, it is contemplated that, by control appliance 2 data are transferred on the memory module 4 in the mode of encrypting by communication media 3.It is contemplated that equally data are stored in the memory module 4 in the mode of encrypting.
Memory module 4 comprises first storage medium 6, and this first storage medium 6 especially is constructed to EEPROM, flash memory, mini drive, pcmcia memory card or Mini Disk.Storage for redundancy, it is contemplated that, memory module 4 can have second or a plurality of different storage medium (not shown), deposit on redundant ground, especially mirror image ground on this storage medium (RAID1-5) by control appliance 2 receptions and be stored in data on first storage medium 6.Starting or initialization for acceleration control apparatus group 1, in addition it is contemplated that, memory module 4 has the 3rd storage medium fast, and at least a portion that will be stored in the data in first storage medium 6 when 1 starting of control appliance group copies on the 3rd storage medium.This fast storage medium preferably be constructed to RAM.In control appliance group 1 during starts, control appliance 2 can be visited especially apace and is stored in these data in storage medium and finish starting or initialization procedure especially apace fast.
A special advantage of the present invention is, to the storage targetedly of data with to the reading targetedly of the data of being stored, can realize so-called communication based on memory (Memory Based Communication) by different control appliances.By this communication, can obviously alleviate burden by the transfer of data of communication media 3 based on memory.This for example can realize in the following manner, and promptly one of control appliance 2 is in the moment of determining, preferably be subjected to the incident control ground will be about the information stores of its current state in the memory cell of determining of the storage medium 6 of memory module 4.Another control appliance 2 is same in the moment that can predesignate, preferably periodically read the content of this memory cell, and therefore obtains the information about the current state of another control appliance 2.That stored and can not only relate to the state of a control appliance 2 by a control appliance 2 by the information that another control appliance 2 is read, and under failure condition, also can comprise specifying about fault.Because based on the communication of memory, no longer need as the large-scale communication by communication media 3 between required, two control appliances 2 so far.
Claims (13)
1. control appliance group (1), comprise a plurality of control appliances (2), these a plurality of control appliances (2) are connected to each other by communication media (3) for the purpose of exchanges data, it is characterized in that, described control appliance group (1) has at least one and is connected to memory module (4) on the described communication media (3), in the wherein said control appliance (2) at least one sends data at its run duration by described communication media (3), so that store on described at least one memory module (4), and receive the data be stored in the described memory module (4) by described communication media (3).
2. according to the described control appliance group of claim 1 (1), it is characterized in that described communication media (3) is a fieldbus, especially the CAN bus.
3. according to claim 1 or 2 described control appliance groups (1), it is characterized in that described at least one control appliance (2) sends described data in the mode of encrypting by described communication media (3), so that store on described at least one memory module (4).
4. according to the described control appliance group of one of claim 1 to 3 (1), it is characterized in that the data that received by at least one control appliance (2) are stored in the described memory module (4) in the mode of encrypting.
5. according to the described control appliance group of one of claim 1 to 4 (1), it is characterized in that described control appliance group (1) is used in the motor vehicle, and described control appliance (2) is used for control and/or regulates vehicle function.
6. according to the described control appliance group of one of claim 1 to 5 (1), it is characterized in that described at least one memory module (4) is disposed in the shielded position that extreme temperature, magnetic field, electromagnetic radiation and mechanical load do not occur.
7. according to the described control appliance group of claim 6 (1), it is characterized in that described at least one memory module (4) is disposed in the passenger accommodation of motor vehicle.
8. according to the described control appliance group of one of claim 1 to 7 (1), it is characterized in that, described at least one memory module (4) comprises logical circuit, this logical circuit impels the data that storage is received by described communication media (3) by one of described control appliance (2) in described memory module (4) on the one hand, transmits the data of being read to this control appliance (2) and impel on the other hand to read from described memory module (4) by at least one data of asking in the described control appliance (2) and by described communication media (3).
9. according to the described control appliance group of one of claim 1 to 8 (1), it is characterized in that, described at least one memory module (4) comprises at least one storage medium (6) for storage, this storage medium especially is constructed to EEPROM, flash memory, mini drive, pcmcia memory card or Mini Disk.
10. according to the described control appliance group of claim 9 (1), it is characterized in that, described at least one memory module (4) has at least one additional storage medium, in that received and data that be stored on first storage medium (6) are redundant by at least one control appliance (2) on this storage medium, mirror image especially.
11. according to claim 9 or 10 described control appliance groups (1), it is characterized in that, described at least one memory module (4) has at least one additional storage medium fast, when described control appliance group (1) was started, at least a portion that is stored in the data in first storage medium (6) was copied to this fast on the storage medium.
12. be used to store the memory module (4) that at least one is connected to the service data of the control appliance (2) on the communication media (3) together, it is characterized in that, described memory module (4) is connected on the described communication media (3), and described memory module (4) have be used for by at least one storage that is received by described communication media (3) of described control appliance (2) in described memory module (4) device and be used for reading by at least one data of asking the described control appliance (2) and the device of the data that are used for being read to this control appliance (2) transmission by described communication media (3) from described memory module (4).
13., it is characterized in that described device is constructed to the logical circuit of described memory module (4) according to the described memory module of claim 13 (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005026989A DE102005026989A1 (en) | 2005-06-10 | 2005-06-10 | ECU network comprising a plurality of control devices and memory module as part of the control unit network |
| DE102005026989.3 | 2005-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101194490A true CN101194490A (en) | 2008-06-04 |
Family
ID=36829845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200680020554.1A Pending CN101194490A (en) | 2005-06-10 | 2006-05-23 | Controller group comprising a plurality of controllers and memory module as a component of the controller group |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1894389A1 (en) |
| CN (1) | CN101194490A (en) |
| DE (1) | DE102005026989A1 (en) |
| WO (1) | WO2006131446A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012019993A1 (en) | 2012-10-12 | 2014-04-17 | Audi Ag | Method for configuring a control unit, control unit and vehicle |
| DE102014210935B4 (en) | 2014-06-06 | 2023-10-12 | Volkswagen Aktiengesellschaft | Device and method for event-specific modification of the operating behavior of a means of transport |
| DE102021006540B4 (en) | 2020-09-14 | 2023-10-19 | Hwa Ag | Suction system for tire abrasion and a vehicle having such a suction system |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH637228A5 (en) * | 1980-03-27 | 1983-07-15 | Willemin Machines Sa | DEVICE FOR CONTROLLING A MACHINE OR INSTALLATION. |
| JP3338634B2 (en) * | 1997-07-09 | 2002-10-28 | 株式会社デンソー | Distributed processing type control unit |
| WO2000060547A1 (en) * | 1999-03-31 | 2000-10-12 | Robert Bosch Gmbh | Method and device for storing data in a vehicle and for evaluating said stored data |
| DE10027006B4 (en) * | 2000-05-31 | 2014-09-04 | Robert Bosch Gmbh | System for controlling the operation of a motor vehicle and a method for starting such a system |
| DE50114190D1 (en) * | 2000-12-27 | 2008-09-18 | Voith Turbo Kg | Device for the electronic control of a transmission unit |
| EP1528996B1 (en) * | 2002-04-18 | 2011-08-03 | Continental Teves AG & Co. oHG | Method and device for providing operating data of functional components of a motor vehicle braking control unit |
-
2005
- 2005-06-10 DE DE102005026989A patent/DE102005026989A1/en not_active Withdrawn
-
2006
- 2006-05-23 CN CN200680020554.1A patent/CN101194490A/en active Pending
- 2006-05-23 EP EP06763235A patent/EP1894389A1/en not_active Withdrawn
- 2006-05-23 WO PCT/EP2006/062542 patent/WO2006131446A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| EP1894389A1 (en) | 2008-03-05 |
| WO2006131446A1 (en) | 2006-12-14 |
| DE102005026989A1 (en) | 2006-12-14 |
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Open date: 20080604 |