EP3766215A2 - Équipement émetteur-récepteur pour un système de bus et son procédé de fonctionnement - Google Patents

Équipement émetteur-récepteur pour un système de bus et son procédé de fonctionnement

Info

Publication number
EP3766215A2
EP3766215A2 EP19709443.6A EP19709443A EP3766215A2 EP 3766215 A2 EP3766215 A2 EP 3766215A2 EP 19709443 A EP19709443 A EP 19709443A EP 3766215 A2 EP3766215 A2 EP 3766215A2
Authority
EP
European Patent Office
Prior art keywords
bus
signal
transmitting
condition
predeterminable
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.)
Pending
Application number
EP19709443.6A
Other languages
German (de)
English (en)
Inventor
Steffen Walker
Arthur Mutter
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 EP3766215A2 publication Critical patent/EP3766215A2/fr
Pending 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
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • 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
    • H04L12/40013—Details regarding a bus controller
    • 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
    • H04L12/4013—Management of data rate on the bus
    • 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
    • H04L12/407—Bus networks with decentralised control
    • H04L12/413—Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD]
    • H04L12/4135—Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection [CSMA-CD] using bit-wise arbitration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0264—Arrangements for coupling to transmission lines
    • H04L25/0272—Arrangements for coupling to multiple lines, e.g. for differential transmission
    • 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
    • H04L2012/40208—Bus networks characterized by the use of a particular bus standard
    • H04L2012/40215—Controller Area Network CAN

Definitions

  • Transceiver for a bus device and method of operation therefor
  • the invention relates to a transmitting / receiving device for a bus system, wherein the transmitting / receiving device has a first bus connection for connection to a first signal line of the bus system, a second bus connection for connection to a second signal line of the bus system and a
  • Transmitting unit for outputting a bus end signal to the first and second bus terminal.
  • the invention further relates to a method for operating such a transmitting / receiving device.
  • a device and a method for selectively hiding bus vibrations in the data reception via a bus system are known.
  • the known device provides a masking element for masking oscillations of the bus signal.
  • the masking element is comparatively expensive.
  • Proposed is a transmitting / receiving device for a bus system, wherein the transmitting / receiving device has a first bus connection for connection to a first signal line of the bus system, a second bus connection for connection to a second signal line of the bus system, and a
  • Transmitting unit for outputting a bus end signal to the first and second bus terminal, wherein the transmitting / receiving device has a
  • the transmitting / receiving means comprises a detection device which is adapted to detect the presence of a first predetermined condition and in the presence of the first predetermined condition, the first and second bus terminal for a predeterminable first time period via a predeterminable electrical resistance or with an impedance to each other, wherein the predetermined first condition comprises at least one of the following elements: a) a rising edge of the transmit input signal and / or a signal derived therefrom, b) a state transition of Sending unit of an operating state driving the first and second bus terminals into an operating state not driving the first and second bus terminals.
  • By connecting the bus terminals by means of the predeterminable electrical resistance for the predeterminable first period of time possibly occurring bus oscillations can be advantageously reduced, because in the first time period results in a greater attenuation by the connected resistor.
  • a state transition of the transmission unit from an operating state driving the first and second bus connections to an operating state not driving the bus connection can be evaluated in order to recognize that an operating state occurs in which undesired
  • Transmitting unit is characterized, for example, characterized in that the transmitting unit one or more bus terminals with a respective predetermined electrical Reference potential acted upon. This can be done, for example, by turning on the first and / or second bus connection to a corresponding one
  • a non-driving operating state of the transmitting unit is characterized, for example, by the fact that the transmitting unit does not act on the bus connections with a predefinable electrical reference potential but, for example, assumes a comparatively high-impedance state.
  • the transmit input signal is evaluated in the sense of the first predeterminable condition because its rising edge usually occurs in time before the operating state change of the driving state in the non-driving state, so that the damping according to the embodiments by means of the predetermined resistance can be activated accordingly early.
  • the recognition device is configured to detect the presence of a second predefinable condition, wherein the second predefinable condition describes that a data phase of a data frame to be transmitted by the transmitting unit is present, wherein the transmitting / receiving device is adapted to the first and second
  • Attenuation of unwanted bus oscillations during the data phase of the data frame is particularly advantageous, for example, when transmissions on the bus system during the data phase have a comparatively high transmission rate, for example bit rate.
  • Bus connections to switch even if the first predetermined condition is present. This is the case, for example, in those embodiments in which an arbitration phase taking place outside the data phase, in particular before the data phase, which regulates, in particular, bus access, provides a comparatively low transmission rate. In the comparatively low transmission rate of Arbitr michodersphase affect the always undesirable bus oscillations not so disturbing to the data transmission, as is the case during a data phase with a relatively high transmission rate.
  • the connection of the predeterminable resistor can be carried out selectively in those operating phases (for example data phase) in which the connection is particularly useful for the signal transmission. According to further embodiments, no additional connection of the predeterminable resistor can take place outside of these operating phases, so that an impedance of the connections with respect to the bus lines remains unchanged outside of these operating phases.
  • a receiving unit is for receiving a bus receive signal from the first and second bus terminals and outputting a receive output signal depending on the
  • Bus receive signal provided. In this way, signals received via the bus system, the bus receive signals, can be received by the transceiver.
  • Detection device is adapted to detect the presence of a third predetermined condition, wherein the third predetermined condition comprises at least one of the following elements: a) a change in state of the bus receive signal from a driven to a non-driven state, b) a falling edge of one by means of the receiving unit c) a rising edge of the receiving output signal, wherein the transmitting / receiving device is designed to connect the first and second bus terminal for the predeterminable first time via the predetermined electrical resistance, if at least the first predetermined condition and the third predetermined condition is present. This allows a particularly reliable activation of the predeterminable resistance in those phases in which the vibrations can occur.
  • comparable information can be determined from the falling edge of the difference signal derived from the bus reception signal by means of the receiving unit and / or from a rising edge of the reception output signal.
  • the transmitting / receiving device is designed to the first and second
  • the predeterminable electrical resistance has a value between about 40 ohms and about 200 ohms, preferably between about 80 ohms and about 160 ohms, more preferably between 100 ohms and about 140 ohms, most preferably about 120 ohms. This results in a particularly efficient damping of unwanted bus oscillations by the connection of the predeterminable electrical resistance at the same time relatively little influence on an optionally to the
  • Bus connections of the transmitting / receiving device connected bus system or other bus participants.
  • the recognition device has at least one AND gate for linking at least one predeterminable one
  • FIG. 1 shows schematically a simplified block diagram of a bus system according to an embodiment
  • FIG. 2 schematically shows a simplified block diagram of a bus system according to a further embodiment
  • FIG. 3 schematically shows a block diagram of a transceiver according to an embodiment
  • FIG. 4 schematically shows a block diagram of a transmitting / receiving device according to a further embodiment
  • Figure 5A is a simplified flowchart of a method according to a
  • FIG. 5B is a diagrammatic representation of FIG. 5B
  • FIG. 8 schematically shows a block diagram of a resistance device according to an embodiment.
  • FIG. 1 schematically shows a simplified block diagram of a bus system 1 according to an embodiment that is used in a vehicle, in particular a motor vehicle, an aircraft, etc., or in an industrial robot, etc.
  • the bus system 1 has a first
  • Subscriber station 1 10 Subscriber station 1 10, a second subscriber station 120, a third
  • Subscriber station 130 Subscriber station 130, a fourth subscriber station 140, a fifth
  • the bus system 1 can be, for example, a CAN bus system or a CAN FD bus system, etc.
  • the bus system 1 in the present exemplary embodiment is designed for a communication in which an exclusive, collision-free access of one of the subscriber stations 1 10 to 150 to the bus line 160 is ensured at least temporarily.
  • the first subscriber station 110 may, for example, be a control unit of a
  • 150 may each be a sensor of the motor vehicle.
  • the third subscriber station 130 may be, for example, a display device of a motor vehicle.
  • FIG. 2 shows a bus system 2 according to a further exemplary embodiment.
  • the Bus system 2 according to the second embodiment a linear bus topology with two terminating resistors 170a, 170b at respective ends of the bus line 160 on.
  • the subscriber stations 1 10 to 150 may be constructed in the same manner in the bus system 2 according to FIG. 2 as in FIG. 1.
  • FIG. 3 shows a schematic block diagram of a transmission / reception device 10 for a bus system according to an embodiment.
  • a transmission / reception device 10 for a bus system according to an embodiment.
  • Subscriber station 1 10, .., 150 of the bus systems 1, 2 described above with reference to Figures 1, 2 are used.
  • the transmitting / receiving device 10 has a first bus connection 12a for connection to a first signal line 1a of the bus system 1 schematically indicated in FIG. 3, and a second bus connection 12b for connection to a second signal line 1b of the bus system 1.
  • FIG Bus line 160 (Fig. 1) so the two signal lines 1 a, 1 b.
  • the transmitting / receiving device 10 furthermore has a transmitting unit 14 for outputting a bus end signal BS to the first and second bus terminals 12a, 12b, for example for transmitting information via the bus line 160 to other subscriber stations or their respective transmitting / receiving devices (not shown) ), and an input terminal 13a for receiving a transmission input signal TxD usable for controlling an operating state of the transmission unit 14.
  • the transmitting unit 14 is connected via its terminals or terminals 14a, 14b to the bus terminals 12a, 12b.
  • the transmitting / receiving device 10 has a detection device 16, which is designed to detect the presence of a first predeterminable condition and, when the first predeterminable condition, the first and second bus connection 12a, 12b for a predetermined first time period via a predetermined electrical To connect resistance with each other, whereby unwanted bus vibrations can be selectively damped.
  • the predeterminable first condition comprises the presence of a rising edge of the transmit input signal TxD.
  • the transmit input signal TxD and / or a signal derived therefrom can be supplied to the recognition device 16. This is shown in Fig. 3 by the on
  • Recognition means 16 accordingly detects the presence of the first predeterminable condition as a function of the rising edge of the transmit input signal TxD, for example, as shown in FIG.
  • Resistor device 17 are controlled by means of a signal output from the detection means 16 control signal 16a such that said predetermined resistance between the bus terminals 12a, 12b is switched.
  • the resistance device 17 can be connected to its terminals or terminals 17a, 17b, for example, fixed to the bus terminals 12a, 12b.
  • the resistance device 17 can, as shown schematically by way of example in FIG. 8, have an electrical resistance R with a value between about 40 ohms and about 200 ohms, preferably between about 80 ohms and about 160 ohms, more preferably between 100 ohms and about 140 ohms, most preferably with about 120 ohms, as well as a switch 17c arranged in series therewith, which by means of a control signal, in the present case for example by means of the recognition device 16
  • control signal 16a is controllable.
  • Damping resistor switched an operating state with a resistance of the drain-source path in the aforementioned range, for example, about 120 ohms, is controllable.
  • the predeterminable first condition comprises the presence of a rising edge of one of
  • the predeterminable first condition comprises a State transition of the transmitting unit 14 from an operating state driving the first and second bus connections 12a, 12b to an operating state that does not drive the first and second bus connections 12a, 12b. This can be determined, for example, as a function of an operating variable of the transmitting unit 14 and / or of a signal present between the bus terminals 12a, 12b, for example by means of an optional receiving unit 18 which can be connected or connected to the bus terminals 12a, 12b via terminals 18a, 18b ,
  • FIG. 5A shows a simplified flow chart of the method according to the invention.
  • step 200 the presence of the first predeterminable condition is detected by means of the recognition device 16 (FIG. 3).
  • the specifiable electrical resistance R is connected between the bus terminals 12a, 12b, for example under control of the resistance device 17 by means of the control signal 16a (FIG. 3).
  • the recognition device 16 is configured to detect the presence of a second predeterminable condition, wherein the second predefinable condition describes that a data phase of a data frame to be transmitted by means of the transmitting unit 14 is present, wherein the transceiver 10 is adapted to the connect the first and second bus terminal 12a, 12b for the predetermined first time period via the predeterminable electrical resistance R (Fig. 8) with each other when the first predetermined condition and the second predetermined condition is present.
  • connection of the predeterminable resistance R can take place deliberately in those operating phases (for example data phase) in which the connection is particularly useful for the signal transmission. Outside of these operating phases may be another
  • information about the presence or absence of a data phase may be provided by a non-mapped CAN controller.
  • FIG. 5B shows a simplified flowchart of a further embodiment.
  • step 200 the presence of the first predeterminable condition is detected by means of the recognition device 16 (FIG. 3).
  • step 202 the presence of the second predeterminable condition is detected by means of the recognition device 16 (FIG. 3), and in step 210a (FIG. 5B) the specifiable electrical resistance R is connected between the bus connections 12a, 12b, for example under control of the resistance device 17 by means of the control signal 16a (FIG. 3).
  • a receiving unit 18, cf. Fig. 3 for receiving a bus receive signal BE from the bus terminals 12a, 12b and outputting (or a precursor thereof, e.g., a differential signal) a receive output signal RxD in response to the bus receive signal BE.
  • signals received via the bus system 1, the bus receive signals BE can be received by the transceiver 10.
  • Detection device 16 is adapted to the presence of a third predeterminable condition, wherein the third predefinable condition comprises at least one of the following elements: a) a change in state of the bus receive signal BE from a driven to a non-driven state, b) a falling edge of a differential signal derived from the bus receive signal by the receive unit, c) a rising edge of the receive output signal RxD, wherein the transceiver 10 is configured to connect the first and second bus terminals 12a, 12b for the predeterminable first time period via the predeterminable electrical resistance R (FIG. 8), if at least the first one predefinable condition and the third predetermined condition is present.
  • the third predeterminable condition comprises at least one of the following elements: a) a change in state of the bus receive signal BE from a driven to a non-driven state, b) a falling edge of a differential signal derived from the bus receive signal by the receive unit, c) a rising edge of the receive output signal R
  • Bus receive signal BE from the driven to the non-driven state and the simultaneous presence of the first predetermined condition
  • Comparable information may in further embodiments of the falling edge of a means of the receiving unit 18 from the
  • Bus receive signal BE derived differential signal for example
  • the transmitting / receiving device 10 is adapted to the first and second
  • FIG. 5C shows a simplified flowchart of a further embodiment.
  • step 200 the presence of the first predeterminable condition is detected by means of the recognition device 16 (FIG. 3).
  • step 202 the presence of the second predefinable condition is recognized by the recognition device 16 (FIG. 3)
  • step 204 the presence of the third predefinable condition is recognized by the recognition device 16 (FIG. 3)
  • step 210b FIGG. 5C
  • the predeterminable electrical resistance R is connected between the bus terminals 12a, 12b, for example under control of the resistance device 17 by means of the control signal 16a (FIG. 3).
  • the recognition device 16 has at least one AND gate 16b for combining a plurality of at least one specifiable condition characterizing signals, for example, for linking the transmit input signal TxD and a clarity not shown in Figure 3 control signal, which is the presence of a data phase signaled (for example, in the sense of a second predetermined condition).
  • FIG. 4 schematically shows a block diagram of a transmitting / receiving device 10a according to a further embodiment, which in the present case is designed, for example, for operation on a bus system 1 embodied as a CAN-FD bus system.
  • a bus system 1 embodied as a CAN-FD bus system.
  • the transmitting / receiving device 10a is connected to a first reference potential CAN_GND, which is, for example, a ground potential.
  • the transmitting / receiving device 10a is connected to a second reference potential CAN_SUPPLY, in which it is
  • a reference potential corresponding to an operating voltage of e.g. +5 volts.
  • the transmitting unit 14 has a transmission signal driver 141, which generates an output signal for driving the two semiconductor switches 142a, 142b as a function of the transmitted input signal TxD supplied thereto. As can be seen from FIG. 4, with appropriate activation of the first
  • Reference potential CAN_SUPPLY dependent electrical potential are placed. Similarly, with appropriate control of the first semiconductor switch 142b by the transmit input signal TxD of the second terminal 14b of the transmitting unit 14, via which the transmitting unit 14 is connected to the second bus terminal 12b, to one of the first
  • This operating state of the transmitting unit 14 is therefore also referred to as the driving operating state of the transmitting unit 14.
  • Semiconductor switches 142a, 142b are set to the aforementioned potentials. This state can also be referred to as a high-impedance state of the transmitting unit 14.
  • the detection device 16 accordingly recognizes, for example, a rising edge of the transmit input signal TxD or of a signal TxD 'derived therefrom, as obtained, for example, at the output of the transmit signal driver 141 as a function of the transmit input signal TxD, as the presence of the first predeterminable condition.
  • the transmitting / receiving device 10a or the detection device 16 can then control the resistance device 17 in the sense of connecting the resistor R (FIG. 8) between the bus connections 12a, 12b, again for a predefinable first time duration.
  • the predeterminable first time period is between about 40 ns (nanoseconds) and about 150 ns.
  • the receiving unit 18 has a first terminal 18a and a second terminal 18b. Via these connections 18a, 18b, the receiving unit 18 is connected to the bus terminals 12a, 12b.
  • a receiving comparator 181 transforms the differential bus signal present at the terminals 18a, 18b in a manner known per se into a differential voltage or the Difference signal VDIFF.
  • the difference signal VDIFF can be fed to the recognition device 16 so that it can check, inter alia, in dependence thereon, as already described above, the presence of a corresponding predefinable condition.
  • the differential voltage VDIFF is, for example, 0 V for a recessive bit and typically 2 V for a dominant bit.
  • the first signal s1 shown in FIG. 6A represents a chronological progression of the transmission input signal TxD (FIGS. 3, 4), as it can be fed to the transmission unit 14 for controlling its operating state.
  • a first time range B1 (FIG. 6A) and a third time range B3, the transmit input signal s1, which is generally a logic signal, has a HIGH state.
  • the transmit input signal s1 has a LOW state in a second time range B2 which lies between the first time range B1 and the third time range B3.
  • the transmitting unit 14 is thus in a driving state
  • the time ranges B1, B3 the transmitting unit 14 is in a non-driving state.
  • the areas B1, B3 also indicate a so-called recessive bus state, and the area B2 a so-called dominant bus state.
  • FIG. 6B shows the bus signals s2 applied to the bus connections 12a, 12b. It can be clearly seen that in the transition from the dominant bus state, area B2, to the recessive bus state, area B3, unwanted bus oscillations occur which make evaluation of the bus signals more difficult.
  • FIG. 6C shows a third signal s3 which shows the time profile of the
  • the bus oscillations depicted in FIG. 6B in the third area B3 lead to comparable oscillations of the difference signal VDIFF or s3 in FIG. 6C.
  • FIG. 6D shows a function of the difference signal VDIFF and the
  • Receiving threshold thr1 detected digital signal s4 which has in the third temporal range B3 corresponding signal fluctuations between a HIGH state and a LOW state.
  • FIG. 6E shows a signal s5, which is optionally selected from the digital signal s4 according to FIG.
  • the 6D can be determined, for example, using a receiver signal driver, not shown, (arranged, for example, in Fig. 4, to the right of the output of the receive comparator 181), which optionally can also make a level adjustment.
  • the signal s5, in some embodiments, may also be provided as a CAN "RxD" signal at a port 13b ( Figure 4) for downstream units (e.g., CAN controller, not shown) for the transceiver 10a.
  • the CAN controller may also provide the transmit input signal TxD at the port 13a.
  • the arrow a1 in Fig. 6E indicates a sampling time. It can be seen that the unwanted bus oscillations provide a signal evaluation to the
  • FIGS. 7A to 7E A comparable state change of the transmission input signal s1 in the areas B1, B2, B3 is described below with reference to FIGS. 7A to 7E, wherein, however, in contrast to FIGS. 6A to 6E in the present case, the principle according to the embodiments is advantageously used.
  • the bus signals s2 thus only have a comparatively short "oscillation period" in the region B3, in which an unambiguous evaluation is made more difficult.
  • the rising edge of the transmit input signal TxD or s1 is designated by the reference symbol sF1, which can be used as a predefinable first condition in the sense of the embodiments for the activation of the damping resistor R (FIG. 8).
  • FIG. 7C shows the falling edge fF1 of the difference signal s3, which can be used as a predefinable third condition in the sense of the embodiments for the activation of the damping resistor R (FIG. 8).
  • FIG. 7E shows the rising edge sF2 of the receive output signal RxD or s5, which can be used as a predefinable third condition in the sense of the embodiments for the activation of the damping resistor R (FIG. 8).
  • the principle according to the embodiments is not limited to the application in CAN or CAN-FD bus systems, but e.g. Can also be used with LVDS bus systems or in general all bus systems with dominant and recessive bus states.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Quality & Reliability (AREA)
  • Dc Digital Transmission (AREA)
  • Small-Scale Networks (AREA)

Abstract

L'invention concerne un équipement émetteur-récepteur (10 ; 10a) pour un système de bus (1 ; 2), l'équipement émetteur-récepteur (10 ; 10a) comportant une première borne de bus (12a) pour la connexion à un premier câble de signal du système de bus (1 ; 2), une deuxième borne de bus (12b) pour la connexion à un deuxième câble de signal du système de bus (1 ; 2) et une unité émettrice (14) pour la production d'un signal d'émission de bus (BS) à la première et à la deuxième borne de bus (12a, 12b), l'équipement émetteur-récepteur (10 ; 10a) comportant une borne d'entrée (13a) destinée à recevoir un signal d'entrée d'émission (TxD) utilisable pour la commande d'un état de fonctionnement de l'unité émettrice (14), l'équipement émetteur-récepteur (10 ; 10a) comportant un équipement de reconnaissance (16) qui sert à reconnaître qu'une première condition prédéfinissable est présente et, lorsque la première condition prédéfinissable est présente, à connecter la première et la deuxième borne de bus (12a, 12b) l'une à l'autre pendant une première durée prédéfinissable par le biais d'une résistance électrique prédéfinissable, la première condition prédéfinissable comprenant au moins l'un des éléments suivants : a) un flanc montant (sF1) du signal d'entrée d'émission (TxD) et/ou d'un signal qui en est déduit, b) un passage d'état de l'unité émettrice (14) d'un état de fonctionnement pilotant la première et la deuxième borne de bus (12a, 12b) à un état de fonctionnement ne pilotant pas la première et la deuxième borne de bus (12a, 12b).
EP19709443.6A 2018-03-12 2019-03-05 Équipement émetteur-récepteur pour un système de bus et son procédé de fonctionnement Pending EP3766215A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018203707.8A DE102018203707A1 (de) 2018-03-12 2018-03-12 Sende-/Empfangseinrichtung für ein Bussystem und Betriebsverfahren hierfür
PCT/EP2019/055364 WO2019174959A2 (fr) 2018-03-12 2019-03-05 Équipement émetteur-récepteur pour un système de bus et son procédé de fonctionnement

Publications (1)

Publication Number Publication Date
EP3766215A2 true EP3766215A2 (fr) 2021-01-20

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Application Number Title Priority Date Filing Date
EP19709443.6A Pending EP3766215A2 (fr) 2018-03-12 2019-03-05 Équipement émetteur-récepteur pour un système de bus et son procédé de fonctionnement

Country Status (6)

Country Link
US (1) US11546188B2 (fr)
EP (1) EP3766215A2 (fr)
JP (1) JP7184918B2 (fr)
CN (1) CN111837363B (fr)
DE (1) DE102018203707A1 (fr)
WO (1) WO2019174959A2 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018203708A1 (de) * 2018-03-12 2019-09-12 Robert Bosch Gmbh Sende-/Empfangseinrichtung für ein Bussystem und Betriebsverfahren hierfür
EP3742680B1 (fr) * 2019-05-22 2022-03-16 Lisa Dräxlmaier GmbH Dispositif distributeur et procédé correspondant
DE102020200803A1 (de) * 2020-01-23 2021-07-29 Robert Bosch Gesellschaft mit beschränkter Haftung Sende-/Empfangseinrichtung und Kommunikationssteuereinrichtung für eine Teilnehmerstation eines seriellen Bussystems und Verfahren zur Kommunikation in einem seriellen Bussystem
DE102020200801A1 (de) * 2020-01-23 2021-07-29 Robert Bosch Gesellschaft mit beschränkter Haftung Sende-/Empfangseinrichtung für eine Teilnehmerstation eines seriellen Bussystems und Verfahren zur Kommunikation in einem seriellen Bussystem
CN112162503B (zh) * 2020-09-03 2022-01-25 湖北吉利太力飞车有限公司 一种电动飞机总线系统及应用其的电动飞机
DE102021203693B4 (de) * 2021-04-14 2024-01-18 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren und Vorrichtung zum Betreiben einer Übertragungseinrichtung

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19611945C1 (de) * 1996-03-26 1997-11-20 Daimler Benz Ag Einrichtung für den busvernetzten Betrieb eines elektronischen Gerätes mit Microcontroller sowie deren Verwendung
US8396164B2 (en) * 2008-03-17 2013-03-12 Denso Corporation Receiving device including impedance control circuit and semiconductor device including impedance control circuit
JP4567762B2 (ja) * 2008-03-17 2010-10-20 株式会社日本自動車部品総合研究所 受信装置
EP2335385B1 (fr) * 2008-10-09 2015-07-01 Nxp B.V. Circuit de commande de bus
JP4957813B2 (ja) * 2010-01-26 2012-06-20 株式会社デンソー 通信用スレーブ及び通信ネットワークシステム
JP5394318B2 (ja) * 2010-05-20 2014-01-22 株式会社日本自動車部品総合研究所 差動通信装置
CN102622325B (zh) * 2011-12-23 2014-12-24 苏州华芯微电子股份有限公司 I2c总线启动与停止电路结构
JP6117747B2 (ja) * 2014-07-31 2017-04-19 株式会社日本自動車部品総合研究所 信号伝送回路
JP6470156B2 (ja) * 2015-09-24 2019-02-13 株式会社Ｓｏｋｅｎ 通信ノード
DE102015222334A1 (de) 2015-11-12 2017-05-18 Robert Bosch Gmbh Einrichtung und Verfahren zum selektiven Ausblenden von Busschwingungen beim Datenempfang über ein Bussystem
EP3214803A1 (fr) * 2016-03-03 2017-09-06 Nxp B.V. Circuit de suppression de sonnerie par anticipation
EP3217602B1 (fr) * 2016-03-11 2019-02-27 Nxp B.V. Circuit de suppression de sonnerie pousser-tirer
US9705697B1 (en) * 2016-03-14 2017-07-11 Cypress Semiconductor Corporation Transceiver for communication and method for controlling communication
JP2017228920A (ja) * 2016-06-22 2017-12-28 株式会社デンソー リンギング抑制回路
EP3535625B1 (fr) * 2016-12-07 2021-02-24 Arilou Information Security Technologies Ltd. Système et procédé d'utilisation d'analyse de forme d'onde de signal pour détecter un changement dans un réseau câblé
US10791002B2 (en) * 2017-08-19 2020-09-29 Nxp B.V. Controller area network (CAN) device and method for operating a CAN device
IT201800001660A1 (it) * 2018-01-23 2019-07-23 St Microelectronics Grenoble 2 Circuito di pilotaggio, sistema e procedimento corrispondenti
DE102018104732B3 (de) * 2018-03-01 2019-02-21 Infineon Technologies Ag Bus-treiberschaltung

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CN111837363B (zh) 2022-03-11
US11546188B2 (en) 2023-01-03
CN111837363A (zh) 2020-10-27
JP2021516505A (ja) 2021-07-01
JP7184918B2 (ja) 2022-12-06
US20210014083A1 (en) 2021-01-14
WO2019174959A2 (fr) 2019-09-19
DE102018203707A1 (de) 2019-09-12

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