CN113438270A - Automobile message signal sending method and system - Google Patents

Automobile message signal sending method and system Download PDF

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Publication number
CN113438270A
CN113438270A CN202110550171.1A CN202110550171A CN113438270A CN 113438270 A CN113438270 A CN 113438270A CN 202110550171 A CN202110550171 A CN 202110550171A CN 113438270 A CN113438270 A CN 113438270A
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CN
China
Prior art keywords
module
power
automobile
message signal
network segment
Prior art date
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Pending
Application number
CN202110550171.1A
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Chinese (zh)
Inventor
贾和平
陈江波
黄少堂
彭玲
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Jiangling Motors Corp Ltd
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Jiangling Motors Corp Ltd
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Priority to CN202110550171.1A priority Critical patent/CN113438270A/en
Publication of CN113438270A publication Critical patent/CN113438270A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • 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
    • 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
    • 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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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)
  • Health & Medical Sciences (AREA)
  • Computing Systems (AREA)
  • General Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The invention discloses an automobile message signal sending method and system, wherein the automobile message signal sending method is applied to an automobile message signal sending system, the automobile message signal sending system comprises a power P-CAN, an automobile body B-CAN and a T-BOX, the T-BOX is bridged between two network segments of the power P-CAN and the automobile body B-CAN, the T-BOX is respectively communicated with a module on the power P-CAN and a module on the automobile body B-CAN, and the method comprises the following steps: acquiring a message signal by a source network segment, wherein the source network segment is the power P-CAN or the vehicle body B-CAN; the T-BOX sends the message signal to a target network segment, and the target network segment is the vehicle body B-CAN or the power P-CAN; and the corresponding module on the target network segment receives the message signal and executes the corresponding function. The invention can reduce the load of the gateway and avoid the generation of signal delay when the message signals are interacted.

Description

Automobile message signal sending method and system
Technical Field
The invention relates to the technical field of automobiles, in particular to an automobile message signal sending method and system.
Background
With the rapid development of the automobile industry and the continuous improvement of living conditions of people, automobiles become one of indispensable transportation tools for people to go out. The automobile keeping amount is increased year by year, and more people own private cars.
The gateway is an important part in the automobile, the more message signals are interacted among modules in the automobile along with the increase of the automobile function, particularly the interaction of cross-network segment message signals is involved, the message signals need the gateway as a middle bridge, the signals of a source network segment are transmitted to a target network segment and finally received by the corresponding modules to realize corresponding functions, the T-BOX is an important part for connecting the signals of the whole automobile with the outside, the remote control of the whole automobile starting, the opening and closing of the windows of the automobile, the opening and closing of the air conditioner and the remote reading of module fault codes can be realized through a T-BOX user and the work of uploading the fault codes to a background server and the like, so the work stability of the gateway and the T-BOX is an important task in the whole automobile development process, and once the T-BOX receives the message signals of a network segment at present, the message signals need to be transmitted to the target network segment through the gateway, this may increase the load on the gateway, resulting in a signal delay phenomenon.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a method for sending a message signal in an automobile, so as to reduce the load of a gateway and avoid the occurrence of signal delay during message signal interaction.
An automobile message signal sending method is applied to an automobile message signal sending system, the automobile message signal sending system comprises a power P-CAN, an automobile body B-CAN and a T-BOX, the T-BOX is bridged between two network segments of the power P-CAN and the automobile body B-CAN, the T-BOX is respectively communicated with a module on the power P-CAN and a module on the automobile body B-CAN, and the method comprises the following steps:
acquiring a message signal by a source network segment, wherein the source network segment is the power P-CAN or the vehicle body B-CAN;
the T-BOX sends the message signal to a target network segment, and the target network segment is the vehicle body B-CAN or the power P-CAN;
and the corresponding module on the target network segment receives the message signal and executes the corresponding function.
According to the automobile message signal sending method provided by the invention, the T-BOX is bridged between two network segments of the power P-CAN and the automobile body B-CAN, the source network segment acquires the message signal, the T-BOX sends the message signal to the target network segment, and finally the corresponding module on the target network segment receives the message signal and executes the corresponding function, namely the message signals of the two network segments of the power P-CAN and the automobile body B-CAN CAN directly communicate with the corresponding network segment module without being forwarded through the gateway, thereby effectively reducing the load of the gateway and avoiding the generation of signal delay phenomenon.
In addition, the method for sending the automobile message signal according to the present invention may further have the following additional technical features:
furthermore, a DCDC module, a BMS module, an SCU module, an EHPS module, an ABS module, an OBC module, an MCU module, an SAS module, an ACM module, an A/C module and an SRS module are arranged on the power P-CAN, and the power P-CAN is connected with the whole vehicle controller.
And further, a PACM module is arranged on the vehicle body B-CAN, and the vehicle body B-CAN is connected with the ignition controller.
Further, a gateway module and an OBD diagnosis interface are arranged between the power P-CAN and the vehicle body B-CAN.
Further, the message signal is at least one of a signal for controlling the starting of the engine, a signal for starting the air conditioner and a request signal for reading a related fault code on the power P-CAN.
Another objective of the present invention is to provide an automobile message signal transmission system, so as to reduce the load of the gateway and avoid the signal delay phenomenon during the message signal interaction.
An automobile message signal sending system comprises a power P-CAN, an automobile body B-CAN and a T-BOX, wherein the T-BOX is bridged between two network segments of the power P-CAN and the automobile body B-CAN, the T-BOX is respectively communicated with a module on the power P-CAN and a module on the automobile body B-CAN, the power P-CAN or the automobile body B-CAN is a source network segment, and the automobile body B-CAN or the power P-CAN is a target network segment;
the source network segment is used for acquiring message signals;
the T-BOX is used for sending the message signal to a target network segment;
and the corresponding module on the target network segment is used for receiving the message signal and executing the corresponding function.
According to the automobile message signal sending system provided by the invention, the T-BOX is bridged between two network segments of the power P-CAN and the automobile body B-CAN, the source network segment acquires the message signal, the T-BOX sends the message signal to the target network segment, and finally the corresponding module on the target network segment receives the message signal and executes the corresponding function, namely the message signals of the two network segments of the power P-CAN and the automobile body B-CAN CAN directly communicate with the corresponding network segment module without being forwarded by the gateway, thereby effectively reducing the load of the gateway and avoiding the generation of signal delay phenomenon.
In addition, the above-mentioned automobile message signal transmission system according to the present invention may further have the following additional technical features:
furthermore, a DCDC module, a BMS module, an SCU module, an EHPS module, an ABS module, an OBC module, an MCU module, an SAS module, an ACM module, an A/C module and an SRS module are arranged on the power P-CAN, and the power P-CAN is connected with the whole vehicle controller.
And further, a PACM module is arranged on the vehicle body B-CAN, and the vehicle body B-CAN is connected with the ignition controller.
Further, a gateway module and an OBD diagnosis interface are arranged between the power P-CAN and the vehicle body B-CAN.
Further, the message signal is at least one of a signal for controlling the starting of the engine, a signal for starting the air conditioner and a request signal for reading a related fault code on the power P-CAN.
Drawings
The above and/or additional aspects and advantages of embodiments of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a flow chart of a method of transmitting an automotive message signal according to an embodiment of the invention;
fig. 2 is a block diagram of an automotive messaging system in accordance with an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, an automobile message signal sending method provided in an embodiment of the present invention is applied to an automobile message signal sending system, where the automobile message signal sending system includes a power P-CAN, an automobile body B-CAN, and a T-BOX, the T-BOX is bridged between two network segments of the power P-CAN and the automobile body B-CAN, the T-BOX is respectively in communication with a module on the power P-CAN and a module on the automobile body B-CAN, and the method includes steps S101 to S103:
s101, a source network segment acquires a message signal, wherein the source network segment is the power P-CAN or the vehicle body B-CAN;
the power P-CAN is provided with a DCDC module, a BMS module, an SCU module, an EHPS module, an ABS module, an OBC module, an MCU module, an SAS module, an ACM module, an A/C module and an SRS module, and the power P-CAN is connected with a whole vehicle controller.
And a PACM module is arranged on the vehicle body B-CAN, and the vehicle body B-CAN is connected with the ignition controller.
In addition, a gateway module and an OBD diagnosis interface are arranged between the power P-CAN and the vehicle body B-CAN.
The message signal is at least one of a signal for controlling the starting of an engine, a signal for starting an air conditioner and a request signal for reading a related fault code on the power P-CAN.
S101, the T-BOX sends the message signal to a target network segment, and the target network segment is the vehicle body B-CAN or the power P-CAN;
s103, the corresponding module on the target network segment receives the message signal and executes the corresponding function.
In the traditional scheme, the T-BOX is directly connected to a vehicle body B-CAN, and a message signal needing to be sent is forwarded to another network segment through a gateway, so that the number of messages processed by the gateway is increased, if the processing capacity of gateway hardware is close to the maximum value, the increased message signal influences the running speed of the gateway so as to cause partial signal delay.
In summary, according to the above-mentioned method for sending a message signal for an automobile, the T-BOX is bridged between two network segments, namely the power P-CAN and the body B-CAN, the source network segment acquires the message signal, the T-BOX sends the message signal to the target network segment, and finally the corresponding module on the target network segment receives the message signal and executes the corresponding function, that is, the message signals of the two network segments, namely the power P-CAN and the body B-CAN, are directly communicated with the corresponding network segment module without being forwarded through the gateway, thereby effectively reducing the load of the gateway and avoiding the generation of signal delay.
Based on the same invention concept, one embodiment of the invention provides an automobile message signal sending system, which comprises a power P-CAN, an automobile body B-CAN and a T-BOX, wherein the T-BOX is bridged between two network segments of the power P-CAN and the automobile body B-CAN, the T-BOX is respectively communicated with a module on the power P-CAN and a module on the automobile body B-CAN, the power P-CAN or the automobile body B-CAN is a source network segment, and the automobile body B-CAN or the power P-CAN is a target network segment;
the source network segment is used for acquiring message signals;
the T-BOX is used for sending the message signal to a target network segment;
and the corresponding module on the target network segment is used for receiving the message signal and executing the corresponding function.
In this embodiment, a DCDC module, a BMS module, an SCU module, an EHPS module, an ABS module, an OBC module, an MCU module, an SAS module, an ACM module, an a/C module, and an SRS module are provided on the power P-CAN, and the power P-CAN is connected to the vehicle control unit.
In the embodiment, a PACM module is arranged on the vehicle body B-CAN, and the vehicle body B-CAN is connected with an ignition controller.
In the embodiment, a gateway module and an OBD diagnosis interface are arranged between the power P-CAN and the vehicle body B-CAN.
In this embodiment, the message signal is at least one of a signal for controlling the start of an engine, a signal for starting an air conditioner, and a request signal for reading a related fault code on the power P-CAN.
According to the automobile message signal sending system provided by the embodiment, the T-BOX is bridged between two network segments of the power P-CAN and the automobile body B-CAN, the source network segment acquires the message signal, the T-BOX sends the message signal to the target network segment, and finally the corresponding module on the target network segment receives the message signal and executes the corresponding function, namely the message signals of the two network segments of the power P-CAN and the automobile body B-CAN CAN directly communicate with the corresponding network segment module without being forwarded through the gateway, so that the load of the gateway is effectively reduced, and the generation of the signal delay phenomenon CAN be avoided.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit of a logic gate circuit specifically used for realizing a logic function for a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An automobile message signal sending method is applied to an automobile message signal sending system, the automobile message signal sending system comprises a power P-CAN, an automobile body B-CAN and a T-BOX, the T-BOX is bridged between two network segments of the power P-CAN and the automobile body B-CAN, the T-BOX is respectively communicated with a module on the power P-CAN and a module on the automobile body B-CAN, and the method comprises the following steps:
acquiring a message signal by a source network segment, wherein the source network segment is the power P-CAN or the vehicle body B-CAN;
the T-BOX sends the message signal to a target network segment, and the target network segment is the vehicle body B-CAN or the power P-CAN;
and the corresponding module on the target network segment receives the message signal and executes the corresponding function.
2. The method for sending automobile message signals according to claim 1, wherein a DCDC module, a BMS module, an SCU module, an EHPS module, an ABS module, an OBC module, an MCU module, an SAS module, an ACM module, an a/C module and an SRS module are provided on the power P-CAN, and the power P-CAN is connected with a vehicle control unit.
3. The method for sending automobile message signals according to claim 1, characterized in that a PACM module is arranged on the B-CAN of the automobile body, and the B-CAN of the automobile body is connected with an ignition controller.
4. The method for sending automobile message signals according to claim 1, wherein a gateway module and an OBD diagnostic interface are arranged between the power P-CAN and the body B-CAN.
5. The method for sending automobile message signals according to claim 1, wherein the message signal is at least one of a signal for controlling the starting of an engine, a signal for starting an air conditioner, and a request signal for reading a related fault code on a power P-CAN.
6. An automobile message signal sending system is characterized by comprising a power P-CAN, an automobile body B-CAN and a T-BOX, wherein the T-BOX is bridged between two network segments of the power P-CAN and the automobile body B-CAN, the T-BOX is respectively communicated with a module on the power P-CAN and a module on the automobile body B-CAN, the power P-CAN or the automobile body B-CAN is a source network segment, and the automobile body B-CAN or the power P-CAN is a target network segment;
the source network segment is used for acquiring message signals;
the T-BOX is used for sending the message signal to a target network segment;
and the corresponding module on the target network segment is used for receiving the message signal and executing the corresponding function.
7. The automobile message signal sending system according to claim 6, wherein the power P-CAN is provided with a DCDC module, a BMS module, an SCU module, an EHPS module, an ABS module, an OBC module, an MCU module, an SAS module, an ACM module, an A/C module and an SRS module, and the power P-CAN is connected with the whole automobile controller.
8. The automotive message signal sending system of claim 6, wherein a PACM module is provided on the body B-CAN, and the body B-CAN is connected with an ignition controller.
9. The automotive message signaling system of claim 6, wherein a gateway module and an OBD diagnostic interface are provided between the power P-CAN and the body B-CAN.
10. The automotive message signaling system of claim 6, wherein the message signal is at least one of a signal to control engine start, a signal to turn on an air conditioner, a request signal to read an associated fault code on a power P-CAN.
CN202110550171.1A 2021-05-20 2021-05-20 Automobile message signal sending method and system Pending CN113438270A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106341283A (en) * 2016-11-15 2017-01-18 安徽江淮汽车股份有限公司 Dual-network-segment controlling method and system
CN109624887A (en) * 2019-01-03 2019-04-16 苏州同捷汽车工程技术股份有限公司 A kind of intelligent network connection automobile serial data bus communication control system
CN209683609U (en) * 2019-01-03 2019-11-26 苏州同捷汽车工程技术股份有限公司 A kind of intelligent network connection automobile serial data bus communication control system
CN111352409A (en) * 2020-04-22 2020-06-30 东风汽车集团有限公司 Serial data bus communication control system and control method for hybrid electric vehicle
CN112198863A (en) * 2020-09-23 2021-01-08 江铃汽车股份有限公司 Diagnostic function control method, system, storage medium, vehicle-mounted communication box and vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106341283A (en) * 2016-11-15 2017-01-18 安徽江淮汽车股份有限公司 Dual-network-segment controlling method and system
CN109624887A (en) * 2019-01-03 2019-04-16 苏州同捷汽车工程技术股份有限公司 A kind of intelligent network connection automobile serial data bus communication control system
CN209683609U (en) * 2019-01-03 2019-11-26 苏州同捷汽车工程技术股份有限公司 A kind of intelligent network connection automobile serial data bus communication control system
CN111352409A (en) * 2020-04-22 2020-06-30 东风汽车集团有限公司 Serial data bus communication control system and control method for hybrid electric vehicle
CN112198863A (en) * 2020-09-23 2021-01-08 江铃汽车股份有限公司 Diagnostic function control method, system, storage medium, vehicle-mounted communication box and vehicle

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Application publication date: 20210924