EP2545678A1 - Procédé d'alimentation d'au moins un dispositif utilisateur de bus - Google Patents

Procédé d'alimentation d'au moins un dispositif utilisateur de bus

Info

Publication number
EP2545678A1
EP2545678A1 EP11706552A EP11706552A EP2545678A1 EP 2545678 A1 EP2545678 A1 EP 2545678A1 EP 11706552 A EP11706552 A EP 11706552A EP 11706552 A EP11706552 A EP 11706552A EP 2545678 A1 EP2545678 A1 EP 2545678A1
Authority
EP
European Patent Office
Prior art keywords
energy
phase
phases
bus subscriber
transmission
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Withdrawn
Application number
EP11706552A
Other languages
German (de)
English (en)
Inventor
Christian Ohl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2545678A1 publication Critical patent/EP2545678A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/10—Current supply arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/542—Systems for transmission via power distribution lines the information being in digital form
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40006—Architecture of a communication node
    • H04L12/40045—Details regarding the feeding of energy to the node from the bus

Definitions

  • the invention relates to a method for supplying at least one bus subscriber and an arrangement for supplying at least one bus subscriber.
  • a master e.g. As a controller, and a number
  • Slaves such as consumers, which are connected to the master, information is exchanged between the master and the slaves. Furthermore, the master can also provide energy to the slaves. Therein, considerations are made to provide a possibility of transmission of energy and information between the master and the slaves.
  • PSD5 a cyclic energy transfer z.
  • the energy transfer can also take place between one or more data words, such as via a dynamic interface (Distributed Sensor Interface, DSI), or other suitable interfaces, such as those offered by the companies Freescale or TRW.
  • DSI distributed Sensor Interface
  • a characteristic feature of cyclic supplies is that the energy for the phases between the energy supply in the sensors is temporarily stored. Often the energy transfer takes place in phases with higher voltages and / or after a fixed time grid.
  • US Pat. No. 6,459,363 describes that two wires, via which a control device and a module are connected, are used for the transmission of data and energy.
  • the document US 6 097 761 describes a procedure and a system for the transmission of energy and data over the same line to which a number of stations are connected.
  • a bipolar alternating voltage in which a first polarity is used only for power supply and the data transmission takes place only by amplitude modulation of the pulses of a second polarity. If the pulses of the first polarity are fed very low impedance, a large amount of energy can be transmitted to the stations.
  • For the modulation of data transmission only a small power is required when the pulses of the second polarity are fed high impedance.
  • only two conductors are necessary, of which in the simplest case one can be replaced by the mass of the system. When using three conductors, increased failure safety against failure of a conductor can be achieved in a very simple manner.
  • a communication system with a master and a number of slaves, which are connected to one another via a bus, is the subject of the document US 2007/086 686.
  • Data is transferred whenever the voltage reaches zero during a discharge time.
  • a similar communication system is known from document US 2007/233920.
  • time intervals for the transmission of energy and the transmission of data alternate. It is envisaged that the lengths of the time Intervals are fixed, and that a data rate of the transmitted data can be varied.
  • a bus or network may include a pair of wires, typically two wires, through which power transmission and data transmission occurs.
  • This may be a bus for at least one bus subscriber and / or consumer, for example a sensor bus, with only two electrical lines, which is designed such that large currents can also be transmitted to provide electrical energy to the bus subscriber and so Connection of consumers with higher power requirements and / or higher power consumption, such. B. of actuators and / or sensors is possible.
  • a controller may have a dynamic interface, e.g. B. a DSI (Distributed Sensor Interface), have, over which the two lines of the bus are connected to the bus subscriber.
  • a dynamic interface can be in Design between the phases for energy transfer and the phases for data transfer back and forth or are switched.
  • a flexible and / or intelligent decoupling of successive phases for energy transmission and data transmission can take place.
  • the phases mentioned can follow one another directly.
  • a break for example a break in switching, is provided between the phases.
  • the at least one bus subscriber is provided by the control unit, which are connected to each other, during at least one phase, which is intended for energy transmission, and at least one phase, which is provided for data transmission, which alternate with each other and follow each other, energy and data .
  • energy may also be provided in typically lesser amount and / or lower power than during the phases of energy transfer.
  • a length or duration of the alternating phases for energy and / or data transmission can be adjusted as needed and / or as a function of operating parameters of the at least one bus user. It is also possible to vary the transmission rate of the data during a data transfer phase and / or successive phases for execution.
  • One possible use of the invention is for sensors with increased energy requirements and sensor / actuator combinations, eg. As a lambda probe, an air mass meter, a C0 2 - or NO x sensor, a controller and / or encoder throttle, as bus subscribers and thus consumers, typically in a motor vehicle provided.
  • the arrangement according to the invention is designed to carry out all the steps of the presented method.
  • individual steps of this method can also be carried out by individual components of the arrangement.
  • functions of the arrangement or functions of individual components of the arrangement can be implemented as steps of the method.
  • steps of the method it is possible for steps of the method to be realized as functions of at least one component of the arrangement or of the entire arrangement.
  • FIG. 1 shows a schematic representation of a first embodiment of an arrangement according to the invention.
  • FIG. 2 shows a schematic illustration of a second embodiment of an arrangement according to the invention
  • FIG. 3 shows a diagram of a sequence of an embodiment of the method according to the invention.
  • the first embodiment of an inventive arrangement 1 for carrying out a first embodiment of the method according to the invention comprises a control unit 3 with a supply unit 5, which is arranged in a module 7 of the control unit 3, and with a measuring element 9 is designed for switching and / or data processing.
  • About two lines 1 1, 13 are at least one bus Participants 15 one or more sensors or other electrical components connected as a consumer to the control unit 3.
  • a current can be modulated via a control unit 17 in the bus subscriber 15, z. B. via a current sink. This modulation is performed with switches 19, 21 disposed within the component holder 15. The change of the current is registered with the measuring element 9 in the control unit 3.
  • the energy supply from sensors either via a
  • a supply of at least one bus subscriber 15 is made possible by the control unit 3.
  • the at least one bus subscriber 15 and the control device 3 are connected to one another via a network.
  • At least one bus subscriber 15 receives data during at least one phase for data transmission.
  • At least one phase for energy transmission energy is transmitted to the at least one bus subscriber 15.
  • phases for data transmission and phases for energy transmission are provided alternately and consecutively. In this case, lengths of the phases, usually operation-accompanying, are set variably.
  • the second embodiment of an inventive arrangement 23 with a control device 25 shown schematically in FIG. 2 is likewise designed to carry out an embodiment of the method according to the invention.
  • further consumers 29 with associated switching elements 31 are arranged in at least one bus subscriber 27. These are generated directly in the phases of typically higher energy transfer directly from the supply unit 5 as an energy source with higher currents, from z. B. several hundred milliamperes to several amps supplied.
  • the diagram shown in FIG. 3 for an embodiment of the method according to the invention comprises a time axis 35.
  • a sequence of phases 37, 39 for data transmission "K" which can also be referred to as communication phases, and phases 41, 43 for energy transmission Shown "E".
  • the lengths of the phases 37, 39 for data transmission and / or lengths of the phases 41, 43 for energy transmission can be adapted flexibly to a quantity of the data to be transmitted and / or an energy requirement of the at least one connected bus subscriber 15, 27.
  • phase 41, 43 for data transmission for example, to control a sensor and / or control electronics, in addition small amounts of energy.
  • at least one bus subscriber 15, 27 receives energy from the control unit 3, 25 (FIGS. 1 and 2).
  • phase 37, 39 for data transmission "K” data and / or signals can also be exchanged between the control unit 3, 25 (FIGS. 1 and 2) and the at least one bus subscriber 15, 27 (FIGS. 1 and 2).
  • phases 41, 43 for energy transmission “E” can also be substantially longer than phases 37, 39 for data transmission "K”.
  • the control unit 3, 25 (FIGS. 1 and 2) is designed so that the supply unit 5 (FIGS. 1 and 2) provides the at least one bus subscriber 15, 27 (FIGS. 1 and 2) with greater amounts of energy, for example, currents can make.
  • the energy to be transmitted can be transmitted via a further power supply unit 33 as a component of the control unit 3, 25 to the at least one bus subscriber 15, 27.
  • the additional power supply unit 33 can provide the required current to the at least one connected bus subscriber 15, 27 or consumer directly, ie bypassing the measuring element 9.
  • the connection of the at least one bus subscriber 27 takes place during the phases 41, 43 for energy transmission "E” via the control unit 17, which has control electronics. It is possible that the control unit 17 during a phase 41, 43 for energy transmission "E” a signal applied to the lines 1 1, 13 signal, for example. Via a higher voltage and / or a carrier signal, for. As a frequency, and / or registered via a fixed or variable time information. Such signals can be transmitted during a phase 37, 39 for data transmission "K" from the control unit 3, 25 to the at least one bus subscriber 15, 27. In this case, such a signal may have a synchronization signal and / or a time indication in the form of a numerical value.
  • the lengths of the phases 37, 39 for data transmission and / or the phases 41, 43 for energy transmission can be flexible to a quantity of data to be transmitted and / or a demand for energy of the at least one bus subscriber 15, 27 and / or dynamically adapted.
  • the lengths of the phases 41, 43 are designed to be flexible for energy transfer, so that the at least one bus subscriber 15, 27 perform an action and complete.
  • an actuator which may be designed as an electric motor and interacts with at least one bus subscriber 15, 27, can move to an intended position in the time provided for performing the action.
  • the action may be an electrical and / or mechanical operating step of the at least one bus subscriber 15, 27.
  • the control unit 3, 25 may in a further embodiment, a dynamic interface, z. B. Distributed Sensor Interface (DSI) over which the control advises 3, 25 between the phases 41, 43 for power transmission "E” and the phases 37, 39 for data transmission "K” can switch back and forth flexibly.
  • DSI Distributed Sensor Interface

Abstract

L'invention concerne un procédé permettant d'alimenter au moins un dispositif utilisateur d'un bus par le biais d'un appareil de commande. Le procédé consiste à transmettre à au moins un dispositif utilisateur du bus des données durant au moins une phase de transmission de données et de l'énergie durant au moins une phase (41, 43) de transmission d'énergie, la ou les phases (37, 39) de transmission de données et la ou les phases (41, 43) de transmission d'énergie ayant lieu en alternance, et les longueurs des phases (37, 39) de transmission de données et/ou les longueurs des phases (41, 43) de transmission d'énergie étant réglées de manière variable.
EP11706552A 2010-03-09 2011-03-01 Procédé d'alimentation d'au moins un dispositif utilisateur de bus Withdrawn EP2545678A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010002679.4A DE102010002679B4 (de) 2010-03-09 2010-03-09 Verfahren zur Versorgung mindestens eines Busteilnehmers
PCT/EP2011/052966 WO2011110442A1 (fr) 2010-03-09 2011-03-01 Procédé d'alimentation d'au moins un dispositif utilisateur de bus

Publications (1)

Publication Number Publication Date
EP2545678A1 true EP2545678A1 (fr) 2013-01-16

Family

ID=44072932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11706552A Withdrawn EP2545678A1 (fr) 2010-03-09 2011-03-01 Procédé d'alimentation d'au moins un dispositif utilisateur de bus

Country Status (5)

Country Link
US (1) US8855216B2 (fr)
EP (1) EP2545678A1 (fr)
CN (1) CN102783082B (fr)
DE (1) DE102010002679B4 (fr)
WO (1) WO2011110442A1 (fr)

Families Citing this family (6)

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CN105591856B (zh) * 2012-03-30 2019-06-04 奥斯兰姆施尔凡尼亚公司 用于通信的路径上的能量传递
DE102017103117A1 (de) 2017-02-16 2018-08-16 Valeo Schalter Und Sensoren Gmbh Verfahren zum Betrieb einer Sensoranordnung auf Basis eines DSI-Protokolls in einem Kraftfahrzeug sowie eine entsprechende Sensoranordnung in einem Kraftfahrzeug
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
US11750243B2 (en) * 2020-02-14 2023-09-05 Microchip Technology Incorporated Low cost power line modem
CN112556105B (zh) * 2020-12-09 2022-05-31 广东美的暖通设备有限公司 通信设备的控制方法、控制装置、通信系统和存储介质
DE102021210588A1 (de) 2021-09-23 2023-03-23 Robert Bosch Gesellschaft mit beschränkter Haftung System mit einem elektronischen Steuergerät und wenigstens einer Sensoreinheit, wobei das Steuergerät über nur eine Zweidrahtleitung zur Kommunikation als auch zur Energieübertragung mit der Sensoreinheit verbunden ist

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FR2752126B1 (fr) * 1996-07-31 1999-04-09 Gandar Marc Systeme de telealimentation d'elements connectes a un reseau
EP0858174A3 (fr) 1997-02-11 2002-09-04 Philips Patentverwaltung GmbH Procédé et système pour transmèttre des données et de l'énergie
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US20040213289A1 (en) * 2002-09-04 2004-10-28 Chun-I Liu Method and system for wakeup packet detection at Gigabit speeds
JP4682916B2 (ja) 2005-10-11 2011-05-11 株式会社デンソー 通信システム及び通信装置
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Also Published As

Publication number Publication date
CN102783082A (zh) 2012-11-14
WO2011110442A1 (fr) 2011-09-15
DE102010002679A1 (de) 2011-09-15
CN102783082B (zh) 2015-05-20
DE102010002679B4 (de) 2023-01-05
US8855216B2 (en) 2014-10-07
US20130070863A1 (en) 2013-03-21

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