CN115001882A - Vehicle-mounted bus transceiver awakening method and device - Google Patents
Vehicle-mounted bus transceiver awakening method and device Download PDFInfo
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- CN115001882A CN115001882A CN202210721861.3A CN202210721861A CN115001882A CN 115001882 A CN115001882 A CN 115001882A CN 202210721861 A CN202210721861 A CN 202210721861A CN 115001882 A CN115001882 A CN 115001882A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/12—Arrangements for remote connection or disconnection of substations or of equipment thereof
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- 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
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- 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
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- 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
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate
Abstract
The invention discloses a vehicle-mounted bus transceiver awakening method and a device, wherein the vehicle-mounted bus transceiver awakening method comprises the following steps: when the power supply of the whole vehicle is in an ignition switch off working condition, responding to any ECU to send a CAN FD network management message in a CAN message form, and detecting whether a data field of the CAN message has a wake-up sequence or not by a transceiver of the ECU to be woken up; and if the data field of the CAN message is detected to have the wake-up sequence, the transceiver wakes up the ECU to be woken up. According to the invention, the network management message in the CAN FD network is designed into the CAN message, and an unused byte is selected in the data field to fill a fixed awakening bit stream, so that the network management message CAN awaken the ECU, and the awakening time is controllable; by constructing the wakeup bit stream in the data field instead of the arbitration field, the reallocation of network management packet IDs and modification of diagnostic addressing policies are avoided.
Description
Technical Field
The invention belongs to the technical field of intelligent networked automobiles, and particularly relates to a vehicle-mounted bus transceiver awakening method and device.
Background
With the increasing degree of automobile intellectualization and networking, many battery-powered ECUs still need to realize certain functions under the Ignition Off condition. Under this condition, one of the prerequisites for communication is that the bus transceiver can be woken up to enter a normal operating state when the ECU is in a low power mode. In order to avoid the situation that the voltage fluctuation on the bus causes unexpected ECU awakening to cause the electricity consumption of the whole vehicle, the method is ISO 11898-2: 2016 defines a new transceiver Wake-up situation. In this wake-up situation, the transceiver must receive a sequence of consecutive dominant-recessive-dominant levels within the wake-up timeout tWake (800- & 1000 μ s), and each dominant or recessive level must last tFilter to be woken up. The arbitration field rate of the CANFD network is 500kbps, and the nominal bit time of one bit of the arbitration field is 2000 ns; the current main stream rate of a data field is 2Mbps or 5Mbps, and the nominal bit time of one bit of the data field is 500ns or 200 ns. Under the Ignition off condition, the ECU is often awakened through the network management message, and the situation that the ECU cannot be awakened may occur without the specially designed network management message.
There are currently transceivers on the market that either comply or do not comply with ISO 11898-2: 2016, a transceiver that does not follow the above-described wake-up scenario only requires a dominant level of 2000ns to wake-up, which is easily met in a vehicle network without the need for additional design. A transceiver that follows the above-described wake-up scenario requires a sequential series of dominant-recessive-dominant levels, and each dominant or recessive level must last for the bus activity filter time tFilter to wake-up, which has two criteria, 500-. The most stringent tFilter parameter in the standards followed by transceiver products developed by commercially available mainstream transceiver vendors is 500-3000 ns.
In a CANFD network, if a CANFD message is used as a network management message, a continuous level sequence of 2 dominant +2 recessive +2 dominant needs to be used to ensure that a transceiver can be woken up in an arbitration field. As shown in fig. 1, if the arbitration field of the network management packet in the CANFD format is designed, the network management packet IDs meeting the requirements are greatly limited (only IDs in the range of 0x300 to 0x33F can be used), and the network management packet IDs which do not meet the requirements at present need to be redistributed, which affects the platformization of the existing solution, and even the diagnostic addressing policy based on the ECU node IDs needs to be changed accordingly, which greatly increases the ECU software modification amount and the development period. As shown in fig. 2, if there is no such sequence in the arbitration field, taking a CAN fd network with a data field rate of 2Mbps as an example, a sequence of 6 dominant +6 recessive +6 dominant would be theoretically required in the data field to wake up the transceiver, and the bit stuffing rule of the CAN protocol is violated by 6 consecutive identical bits, which is not possible. Therefore, the network management message is a CANFD message, which is less likely to wake up in the data field if the transceiver cannot wake up in the arbitration field. If the network management message is not additionally designed, the situation that the transceiver cannot be awakened and the awakening time of the ECU is uncontrollable may occur, which is unacceptable in the whole vehicle network development process.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a method and a device for waking up a vehicle-mounted bus transceiver, so as to wake up an ECU through a network management message and accurately control a wake-up time.
In order to solve the above technical problem, the present invention provides a method for waking up a vehicle-mounted bus transceiver, including:
when the power supply of the whole vehicle is in an ignition switch off working condition, responding to any ECU to send a CAN FD network management message in a CAN message form, and detecting whether a data field of the CAN message has a wake-up sequence or not by a transceiver of the ECU to be woken up;
and if the data field of the CAN message is detected to have the wake-up sequence, the transceiver wakes up the ECU to be woken up.
Further, the wake-up sequence is a continuous level sequence of 2 dominance +2 recessions +2 dominance, specifically, a bit stream of 001100.
Further, an inverse bit is added before the bit stream of 001100, and the unused bit is left to be padded with 0, so that the bit stream of the whole byte is 01001100.
Further, the wake-up sequence is constructed by selecting an unused blank byte in the network management message data field.
Further, all network management messages in the CAN FD network are designed as CAN messages by setting the FDF flag bit to be dominant.
The invention also provides a vehicle-mounted bus transceiver awakening device which comprises an awakening control unit, a CAN network management message sending unit and a CAN message sending unit, wherein the awakening control unit is used for responding to any ECU to send the CAN network management message in a CAN message form when the power supply of the whole vehicle is in an ignition switch off working condition, and controlling the transceiver of the ECU to be awakened to detect whether a data field of the CAN message has an awakening sequence or not; and if the data field of the CAN message is detected to have the wake-up sequence, controlling the transceiver to wake up the ECU to be woken up.
Further, the vehicle-mounted bus transceiver wake-up device further comprises a wake-up sequence construction unit, configured to construct the wake-up sequence, where the wake-up sequence is a continuous level sequence of 2 dominant +2 recessive +2 dominant, and specifically is a bit stream of 001100.
Further, the wake-up sequence constructing unit is further configured to add a reverse bit before the bit stream of 001100, and leave unused bits to fill 0, so that the bit stream of the whole byte is 01001100.
Further, the wake-up sequence constructing unit is further configured to select an unused blank byte in the network management packet data field to construct the wake-up sequence.
Further, the vehicle-mounted bus transceiver wake-up device further comprises a message design unit, which is used for designing all network management messages in the CAN FD network into CAN messages by setting the FDF flag bit to be dominant.
The implementation of the invention has the following beneficial effects: according to the invention, the network management message in the CAN FD network is designed into the CAN message, and an unused byte is selected in the data field to fill a fixed awakening bit stream, so that the network management message CAN awaken the ECU, and the awakening time is controllable; by constructing the wakeup bit stream in the data field instead of the arbitration field, the reallocation of network management packet IDs and modification of diagnostic addressing policies are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a wake-up sequence in an arbitration field configuration.
Fig. 2 is a diagram of a wake-up sequence for data field construction of a can fd network management message.
Fig. 3 is a flowchart illustrating a method for waking up a vehicle bus transceiver according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of a wake-up sequence constructed in a data field of a CAN network management message according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments refers to the accompanying drawings, which are included to illustrate specific embodiments in which the invention may be practiced.
Referring to fig. 3, a method for waking up a vehicle bus transceiver according to an embodiment of the present invention includes:
when the power supply of the whole vehicle is in an ignition switch off working condition, responding to any ECU to send a CAN FD network management message in a CAN message form, and detecting whether a data field of the CAN message has a wake-up sequence or not by a transceiver of the ECU to be woken up;
and if the data field of the CAN message is detected to have the wake-up sequence, the transceiver wakes up the ECU to be woken up.
According to the invention, the network management message in the CAN FD network is designed into the CAN message, and the unused bytes in the data field construct the wake-up sequence, so that the transceiver CAN be ensured to be woken up, the wake-up time is controllable, the redistribution of the network management message ID is avoided, the diagnosis and addressing strategy based on the ECU node ID CAN be continuously used, and the ECU software change amount is small.
Specifically, in this embodiment, all network management messages in the CANFD network are designed as CAN messages, and are prohibited to be designed as CANFD messages. The method is realized by setting an FDF flag bit (FD Format Indicator) to be dominant (0): the flag bit indicates whether the message is a CAN message or a CANFD message, wherein dominant (0) is the CAN message, and recessive (1) is the CANFD message.
In order to facilitate the construction of the wake-up sequence, in this embodiment, bytes that are currently used and planned to be used in a network management message data field in an enterprise standard and bytes that are already occupied by network management international standards such as AUTOSAR or OSEK are comprehensively considered, and an unused blank byte is selected to construct the wake-up sequence.
A continuous level sequence of 2 dominant +2 recessive +2 dominant, i.e. a bit stream of 001100, is constructed in the blank byte as the wake-up sequence of this embodiment. Meanwhile, considering that the bit filling rule of the CAN protocol is "one inverted bit must be filled after 5 consecutive identical dominant bits (e.g. 00000) or 5 consecutive identical recessive bits (e.g. 11111)", if there are four consecutive dominant bits (0000) in the previous byte of the byte where the wake-up sequence is located, since the first two bits of the constructed 001100 bit stream are two consecutive dominant bits (00), in order to satisfy the bit filling rule of the CAN, one inverted bit will be inserted into the constructed 001100 bit stream to become 0101100, thus causing the constructed 001100 stream to be corrupted. Based on this, in order to prevent the bit stuffing rule of the CAN protocol from destroying the constructed 001100 bitstream, an inverse bit (i.e. recessive bit 1) is added before the 001100 bitstream, and the unused bit stuffing 0 is left, so that the bitstream of the whole byte is 01001100 (i.e. 0x 4C) (as shown in fig. 3).
In specific implementation, when the entire vehicle power supply is in the Ignition Off condition, if some ECUs have network requirements, the ECUs may send network management messages in the CAN form to the bus (it CAN be understood that the data field of the network management messages in the CAN form has the wake-up sequence constructed in this embodiment), and other ECUs detect that the data field of the network management messages in the CAN form has the wake-up sequence (01001100 bit stream), so that the transceivers of the ECUs are woken up, the transceivers are woken up and then wake up the entire ECU, and normal communication is established among the ECUs.
It should be noted that, as described above, constructing 001100 bit stream in the arbitration field is also a method, but this method is very limited, and limits the selection of packet ID. If an 01001100 bit stream were not constructed in accordance with embodiments of the present invention, then the timing of the occurrence of a satisfactory transceiver wake-up condition would be randomly unpredictable; the bit stream of 01001100 is placed in a CAN network management message data field, so that the transceiver CAN be awakened as long as the CAN network management message is sent, and the network management message exists in each network segment of the whole vehicle in practical application, so that the implementation is free of obstacles, and the method is convenient and quick.
Corresponding to the vehicle-mounted bus transceiver wake-up method in the first embodiment of the present invention, a second embodiment of the present invention further provides a vehicle-mounted bus transceiver wake-up device, including a wake-up control unit, configured to respond to any ECU to send a CAN fd network management message in a CAN message form when a power supply of a whole vehicle is in an ignition switch off condition, and control a transceiver of an ECU to be woken up to detect whether a data field of the CAN message has a wake-up sequence; and if the data field of the CAN message is detected to have the wake-up sequence, controlling the transceiver to wake up the ECU to be woken up.
Further, the vehicle-mounted bus transceiver wake-up device further comprises a wake-up sequence construction unit, configured to construct the wake-up sequence, where the wake-up sequence is a continuous level sequence of 2 dominant +2 recessive +2 dominant, and specifically is a bit stream of 001100.
Further, the wake-up sequence constructing unit is further configured to add a reverse bit before the bit stream of 001100, and leave unused bits to fill 0, so that the bit stream of the whole byte is 01001100.
Further, the wake-up sequence constructing unit is further configured to select an unused blank byte in the network management packet data field to construct the wake-up sequence.
Further, the vehicle-mounted bus transceiver wake-up device further comprises a message design unit, which is used for designing all network management messages in the CAN FD network into CAN messages by setting the FDF flag bit to be dominant.
For the working principle and process of this embodiment, refer to the description of the first embodiment of the present invention, and are not described herein again.
As can be seen from the above description, compared with the prior art, the beneficial effects of the present invention are: according to the invention, the network management message in the CAN FD network is designed into the CAN message, and an unused byte is selected in the data field to fill a fixed awakening bit stream, so that the network management message CAN awaken the ECU, and the awakening time is controllable; by constructing the wakeup bit stream in the data field instead of the arbitration field, the reallocation of network management packet IDs and modification of diagnostic addressing policies are avoided.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. A vehicle-mounted bus transceiver wake-up method is characterized by comprising the following steps:
when the power supply of the whole vehicle is in an ignition switch off working condition, responding to any ECU to send a CAN FD network management message in a CAN message form, and detecting whether a data field of the CAN message has a wake-up sequence or not by a transceiver of the ECU to be woken up;
and if the data field of the CAN message is detected to have the awakening sequence, the transceiver awakens the ECU to be awakened.
2. The wake-up method for the vehicle bus transceiver according to claim 1, wherein the wake-up sequence is a continuous level sequence of 2 dominant +2 recessive +2 dominant, in particular a bit stream of 001100.
3. The wake-up method for the vehicle bus transceiver of claim 2, wherein a backward bit is added before the bit stream of 001100, and the unused bit is left to be padded with 0, so as to obtain 01001100 for the bit stream of the whole byte.
4. The wake-up method for a vehicle bus transceiver of claim 1, wherein the wake-up sequence is constructed by selecting an unused blank byte in a network management message data field.
5. The vehicle bus transceiver wake-up method according to any one of claims 1 to 4, wherein all network management messages in a CAN FD network are designed as CAN messages by setting FDF flag bit to be dominant.
6. A vehicle-mounted bus transceiver awakening device is characterized by comprising an awakening control unit, a CAN network management message sending unit and a CAN network management message sending unit, wherein the awakening control unit is used for responding to any ECU in a CAN message mode when a vehicle power supply is in an ignition switch off working condition and controlling a transceiver of an ECU to be awakened to detect whether a data field of the CAN message has an awakening sequence or not; and if the data field of the CAN message is detected to have the wake-up sequence, controlling the transceiver to wake up the ECU to be woken up.
7. The vehicle bus transceiver wake-up apparatus according to claim 6, further comprising a wake-up sequence constructing unit configured to construct the wake-up sequence, wherein the wake-up sequence is a continuous level sequence of 2 dominant +2 recessive +2 dominant, specifically a bit stream of 001100.
8. The vehicle bus transceiver wakeup apparatus according to claim 7, wherein the wakeup sequence building unit is further configured to add a reverse bit before the bit stream of 001100, leaving unused bits to fill in 0, resulting in 01001100 for the bit stream of the entire byte.
9. The wake-up apparatus of claim 6, wherein the wake-up sequence constructing unit is further configured to select an unused blank byte in the NMP data field to construct the wake-up sequence.
10. The on-board bus transceiver wakeup device according to any one of claims 6 to 9, further comprising a message design unit configured to design all network management messages in a CAN fd network as CAN messages by setting the FDF flag bit to be dominant.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102687471A (en) * | 2009-12-28 | 2012-09-19 | Nxp股份有限公司 | Definition of wakeup bus messages for partial networking |
| EP2712123A1 (en) * | 2012-09-20 | 2014-03-26 | Robert Bosch Gmbh | Standard CAN implementation tolerating CAN FD frames |
| CN106094801A (en) * | 2016-07-12 | 2016-11-09 | 四川大学 | A kind of novel CAN FD controller |
| CN106302060A (en) * | 2016-07-26 | 2017-01-04 | 广州汽车集团股份有限公司 | A kind of car load dormancy awakening method, system and automotive CAN network gateway |
| US20180054843A1 (en) * | 2015-05-05 | 2018-02-22 | Continental Teves Ag & Co. Ohg | Connecting control devices and the v2x unit via wlan or bluetooth, and v2x unit which has update memory |
| CN108156062A (en) * | 2017-08-18 | 2018-06-12 | 上海金脉电子科技有限公司 | The gateway controller of various communications protocols including compatible Ethernet and CAN FD |
| JP2019009678A (en) * | 2017-06-27 | 2019-01-17 | アイシン精機株式会社 | On-vehicle communication network system |
| CN109327367A (en) * | 2018-10-25 | 2019-02-12 | 东北大学 | A kind of CAN FD bus message dispatching method based on offset |
| CN109756407A (en) * | 2019-01-17 | 2019-05-14 | 重庆菲斯塔新能源汽车科技有限公司 | A kind of CAN bus based localized network management method |
| CN113204226A (en) * | 2021-04-25 | 2021-08-03 | 重庆长安汽车股份有限公司 | Vehicle diagnosis system and method |
| CN114363099A (en) * | 2021-02-05 | 2022-04-15 | 华为数字能源技术有限公司 | Network management system, control method, electronic controller and electric automobile |
-
2022
- 2022-06-24 CN CN202210721861.3A patent/CN115001882B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102687471A (en) * | 2009-12-28 | 2012-09-19 | Nxp股份有限公司 | Definition of wakeup bus messages for partial networking |
| EP2712123A1 (en) * | 2012-09-20 | 2014-03-26 | Robert Bosch Gmbh | Standard CAN implementation tolerating CAN FD frames |
| US20180054843A1 (en) * | 2015-05-05 | 2018-02-22 | Continental Teves Ag & Co. Ohg | Connecting control devices and the v2x unit via wlan or bluetooth, and v2x unit which has update memory |
| CN106094801A (en) * | 2016-07-12 | 2016-11-09 | 四川大学 | A kind of novel CAN FD controller |
| CN106302060A (en) * | 2016-07-26 | 2017-01-04 | 广州汽车集团股份有限公司 | A kind of car load dormancy awakening method, system and automotive CAN network gateway |
| JP2019009678A (en) * | 2017-06-27 | 2019-01-17 | アイシン精機株式会社 | On-vehicle communication network system |
| CN108156062A (en) * | 2017-08-18 | 2018-06-12 | 上海金脉电子科技有限公司 | The gateway controller of various communications protocols including compatible Ethernet and CAN FD |
| CN109327367A (en) * | 2018-10-25 | 2019-02-12 | 东北大学 | A kind of CAN FD bus message dispatching method based on offset |
| CN109756407A (en) * | 2019-01-17 | 2019-05-14 | 重庆菲斯塔新能源汽车科技有限公司 | A kind of CAN bus based localized network management method |
| CN114363099A (en) * | 2021-02-05 | 2022-04-15 | 华为数字能源技术有限公司 | Network management system, control method, electronic controller and electric automobile |
| CN113204226A (en) * | 2021-04-25 | 2021-08-03 | 重庆长安汽车股份有限公司 | Vehicle diagnosis system and method |
Non-Patent Citations (3)
| Title |
|---|
| YI C H ET AL.: "Reduction of Wake-up Time for Partial Networking in Automotive System", 《THE 10TH INTERNATIONAL CONFERENCE. ACM》 * |
| 程小珊: "基于CAN-CANFD网络的网关实时性研究与分析", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
| 邓勇: "车载CAN FD网络管理策略的研究与设计", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
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