WO2013163986A1 - Verfahren zum betrieb einer empfangseinheit eines mit zumindest einer sendeeinheit verbundenen kraftfahrzeugsteuergeräts - Google Patents
Verfahren zum betrieb einer empfangseinheit eines mit zumindest einer sendeeinheit verbundenen kraftfahrzeugsteuergeräts Download PDFInfo
- Publication number
- WO2013163986A1 WO2013163986A1 PCT/DE2013/100126 DE2013100126W WO2013163986A1 WO 2013163986 A1 WO2013163986 A1 WO 2013163986A1 DE 2013100126 W DE2013100126 W DE 2013100126W WO 2013163986 A1 WO2013163986 A1 WO 2013163986A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- unit
- virtual address
- receiving unit
- standard
- motor vehicle
- Prior art date
Links
Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5038—Address allocation for local use, e.g. in LAN or USB networks, or in a controller area network [CAN]
Definitions
- the invention relates to a method for operating a receiving unit according to the preamble of claim 1 and to a corresponding receiving unit.
- a plurality of sensors are connected to motor vehicle control devices, for example a central control device for occupant protection devices, in the vehicle.
- motor vehicle control devices for example a central control device for occupant protection devices
- one or more sensors are operated in parallel, for example via a common communication bus, for example according to the PSI5 standard, or several buses.
- PSI5 standard for example, the PSI5 standard, or several buses.
- ASIL security level
- sensor data are transferred according to PSI5 V1.3. Here, the transmission takes place without address and message counter. In the future, a revised 2nd version of this standard is to be used, whereby it is then provided that the sensors transmit an assigned address with the signal and thus the signals can be unambiguously identified.
- the object of the invention is therefore to introduce a receiving unit, which makes it possible to connect also transmitting units, so for example sensors, with current protocol to a motor vehicle control unit, which already meets the higher safety requirements.
- Such a receiving unit has at least one input terminal for receiving signals of at least one, usually of course several transmitting units.
- a bus structure for receiving signals of at least one, usually of course several transmitting units.
- the PSI5 standard are already the different forms of a bus structure, be it a single connection, a parallel bus or daisy-chain bus known.
- the invention is basically irrelevant whether the receiving unit has one or more input terminals and how many transmitting units are connected together and at an input terminal together. Of course, this number determines the number of required virtual addresses, so that the signals for the vehicle control unit are clearly assigned to the respective transmission unit.
- the receiving unit adds an identifier to the received signal, which contains at least one virtual address of the transmitting unit.
- This address is referred to as virtual in this application because it is not directly in the
- Sending unit itself is deposited and thus not already added by the transmitting unit the transmitted signal, but only from the receiving unit.
- the assignment of the virtual address could be made solely on the basis of the reception at the corresponding input terminal, that is, each at this
- Input port incoming signal is added to this associated virtual address. If the receiving unit also has further input connections, these are assigned correspondingly different virtual addresses. However, if a plurality of transmitting units are connected to one input terminal, a virtual address is additionally allocated on the basis of the transmitting period within a protocol frame, that is to say the virtual address results from the input terminal together with the concrete position of the signal within the protocol frame. In general, however, it is also conceivable for each individual connection to take into account the transmission period within a protocol frame, for example in the case of an aggregated one
- the identifier may also contain further information, preferably additionally a message counter.
- Message counters are a simplified form of a time stamp and consists of one or more bits, which are incremented by 1 with each incoming signal, the maximum number is reached and the message counter is thus restarted. The closer please for the
- Receiving unit checks whether the transmitting unit already sends its signal with an address and only then adds a virtual address to the signal, if no address was sent from the transmitting unit. Namely, such a receiving unit allows the flowing change between transmitting units without address and the change to new transmitting units, which already send a real address directly assigned to him and thus for this
- This method is thus suitable, for example, for connecting a sensor unit with a PSI5 Version 1 standard to a motor vehicle control unit which processes signals in the PSI Version 2 standard.
- vehicle control units can be used with the modern standard, although not all sensors have been converted to this standard.
- FIG. 1 shows a motor vehicle control unit 1, for example a control device for occupant protection devices with a receiving unit 3 and a processing unit 4, for example a microprocessor for signal processing.
- a control unit is connected to a transmitting unit 2 which, for example, sends its signal to the receiving unit 3 via the line 2-1 in response to a synchronization pulse.
- other transmitting units can be connected to the same input terminal of the receiving unit 3, which would then send your data, for example, in other transmission periods based on the synchronization pulse.
- the receiving unit 3 may also have further input terminals for further transmitting unit.
- the figure 1 is so simple and should serve only the basic understanding of the invention.
- the signal of the transmitting unit 2 on the line 2-1 is shown thematically in Figure 2 and consists for example of a few introductory bits (header H) and a
- the signal has no address.
- the receiving unit 3 adds an identifier to the received signal, which contains at least one virtual address AD of the transmitting unit 2.
- the virtual address AD can consist of one or more bits.
- the virtual address is assigned at least on the basis of the respective input terminal, and if several transmitting units are connected to this input terminal, additionally assigned on the basis of the respective position of the signals in the protocol frame, ie on the basis of the transmission period.
- the receiving unit 3 adds to the received signal in addition a message counter (NR), which in turn may consist of one or more bits and cyclically the sequence of successive signals by increasing the message counter to
- NR message counter
- the check bits are recalculated using this identifier and thus also the identifier is backed up by the check bits.
- the communication module adds to the PSI5 time-coded data (sensor 1 in timeslot 1) each a unique address and a message counter.
- the resulting signal message is protected by a CRC.
- the message can also be transmitted by communication layers that have been developed at a lower or no security level (ASIL).
- ASIL no security level
- the message recipient-e.g. a SW component in the same controller ⁇ controller - can use the CRC, address and message counter to verify that the sensor data has been transmitted unaltered and from the correct sensor through the 'insecure' communication channel.
- the signal message can alternatively be transmitted in this format via other communication channels to another controller.
- the message is then checked on this control unit.
- PSI5 transceiver is developed according to ASIL B.
- An ASIC can contain several of these transceivers, which are independent.
- Data received from a transceiver can be transmitted using standard SW components (eg MCAL SPI driver) developed to ASIL A.
- An SW component airbag checks the received signal messages. If the SW component airbag was developed according to ASIL B, the signal message can be used for protection according to ASIL B despite the lower development quality of the SW component MCAL SPI driver.
- Example 2
- PSI5 transceiver is developed according to ASIL B.
- An ASIC can contain several of these transceivers, which are independent.
- the receiving unit By adding the virtual address, if necessary still supplemented by a message counter is thus possible by the receiving unit to connect simple sensor units to an already better secured overall control unit, so for example.
- a sensor unit with a PSI5 Version1 standard to a motor vehicle control unit eg Occupant protection system control unit which already processes signals in the PSI Version 2 standard, for example, this already receives from other sensor units in this standard.
- the virtual address can also be selectively added only where it is required, thus achieving a system change even if the vehicle has already been fitted with initial equipment and subsequent conversion of the individual sensors or their transmission units.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112013002315.6T DE112013002315A5 (de) | 2012-05-04 | 2013-04-09 | Verfahren zum Betrieb einer Empfangseinheit eines mit zumindest einer Sendeeinheit verbundenen Kraftfahrzeugsteuergeräts |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012103907.0 | 2012-05-04 | ||
DE102012103907A DE102012103907A1 (de) | 2012-05-04 | 2012-05-04 | Verfahren zum Betrieb einer Empfangseinheit eines mit zumindest einer Sendeeinheit verbundenen Kraftfahrzeugsteuergeräts |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013163986A1 true WO2013163986A1 (de) | 2013-11-07 |
Family
ID=48446017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2013/100126 WO2013163986A1 (de) | 2012-05-04 | 2013-04-09 | Verfahren zum betrieb einer empfangseinheit eines mit zumindest einer sendeeinheit verbundenen kraftfahrzeugsteuergeräts |
Country Status (2)
Country | Link |
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DE (2) | DE102012103907A1 (de) |
WO (1) | WO2013163986A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014219610A1 (de) * | 2014-09-26 | 2016-03-31 | Continental Teves Ag & Co. Ohg | Kundenspezifische Sensordatenübertragung mit Standardsensor |
DE102017118567A1 (de) | 2017-08-15 | 2019-02-21 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Betreiben einer Sensoranordnung in einem Kraftfahrzeug auf Basis eines DSI-Protokolls |
DE102017118574A1 (de) | 2017-08-15 | 2019-02-21 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Betreiben einer Sensoranordnung in einem Kraftfahrzeug auf Basis eines DSI-Protokolls |
DE102017118565A1 (de) | 2017-08-15 | 2019-02-21 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Betreiben einer Sensoranordnung in einem Kraftfahrzeug auf Basis eines DSI-Protokolls |
DE102018112587A1 (de) | 2018-05-25 | 2019-11-28 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Betreiben einer Sensoranordnung in einem Kraftfahrzeug auf Basis eines DSI-Protokolls |
DE102018114225A1 (de) | 2018-06-14 | 2019-12-19 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Betreiben einer Sensoranordnung in einem Kraftfahrzeug auf Basis eines DSI-Protokolls |
DE102018114218B4 (de) | 2018-06-14 | 2020-06-25 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Betreiben einer Sensoranordnung in einem Kraftfahrzeug auf Basis eines DSI-Protokolls |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102008000570A1 (de) * | 2008-03-07 | 2009-09-10 | Robert Bosch Gmbh | Ultraschallbasiertes Fahrerassistenzsystem |
DE102009002708A1 (de) * | 2009-04-29 | 2010-11-04 | Robert Bosch Gmbh | Verfahren zur Identifikation von Sensoren an einem Bus durch ein Steuergerät, sowie ein Steuergerät und ein Sensor hierzu |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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DE19755311B4 (de) * | 1997-12-12 | 2006-10-26 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Informationsübertragung in Kraftfahrzeugen |
JP3692820B2 (ja) * | 1999-03-10 | 2005-09-07 | 株式会社デンソー | 自動車用制御装置 |
WO2002015486A2 (en) * | 2000-08-16 | 2002-02-21 | Microchip Technology Incorporated | Fully programmable device operation control to allow commands |
US7149206B2 (en) * | 2001-02-08 | 2006-12-12 | Electronic Data Systems Corporation | System and method for managing wireless vehicular communications |
EP2056178A1 (de) * | 2007-10-30 | 2009-05-06 | Austriamicrosystems AG | Halbleiterschaltung und Sensorsystem |
DE102008000810B4 (de) * | 2008-03-26 | 2018-06-21 | Robert Bosch Gmbh | Steuergerät und Verfahren zur Ansteuerung von Personenschutzmitteln für ein Fahrzeug |
-
2012
- 2012-05-04 DE DE102012103907A patent/DE102012103907A1/de not_active Withdrawn
-
2013
- 2013-04-09 WO PCT/DE2013/100126 patent/WO2013163986A1/de active Application Filing
- 2013-04-09 DE DE112013002315.6T patent/DE112013002315A5/de not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102008000570A1 (de) * | 2008-03-07 | 2009-09-10 | Robert Bosch Gmbh | Ultraschallbasiertes Fahrerassistenzsystem |
DE102009002708A1 (de) * | 2009-04-29 | 2010-11-04 | Robert Bosch Gmbh | Verfahren zur Identifikation von Sensoren an einem Bus durch ein Steuergerät, sowie ein Steuergerät und ein Sensor hierzu |
Non-Patent Citations (1)
Title |
---|
"Peripheral Sensor Interface for Automotive Applications", INTERNET CITATION, 1 June 2011 (2011-06-01), pages 1 - 58, XP002682017, Retrieved from the Internet <URL:http://web.archive.org/web/20110724092236/http://www.psi5.org/en/pool/pdf/110601_psi5_spec_v20_base.pdf> [retrieved on 20120820] * |
Also Published As
Publication number | Publication date |
---|---|
DE102012103907A1 (de) | 2013-11-07 |
DE112013002315A5 (de) | 2015-01-08 |
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