CN115544085A - Driving device and driving method based on FlexRay bus and CAN bus - Google Patents

Driving device and driving method based on FlexRay bus and CAN bus Download PDF

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Publication number
CN115544085A
CN115544085A CN202211158330.4A CN202211158330A CN115544085A CN 115544085 A CN115544085 A CN 115544085A CN 202211158330 A CN202211158330 A CN 202211158330A CN 115544085 A CN115544085 A CN 115544085A
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bus
flexray
communication module
driving
communication
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CN202211158330.4A
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Inventor
张志强
候永爱
李伟
郭星
聂少董
张伟
霍常春
田旭
张翔
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Inner Mongolia First Machinery Group Hongyuan Electrical Appliance Co ltd
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Inner Mongolia First Machinery Group Hongyuan Electrical Appliance Co ltd
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Priority to CN202211158330.4A priority Critical patent/CN115544085A/en
Publication of CN115544085A publication Critical patent/CN115544085A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/24—Querying
    • G06F16/245—Query processing
    • G06F16/2455—Query execution
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38—Information transfer, e.g. on bus
    • G06F13/40—Bus structure
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Data Mining & Analysis (AREA)
  • Databases & Information Systems (AREA)
  • Computer Hardware Design (AREA)
  • Small-Scale Networks (AREA)

Abstract

The invention belongs to the technical field of communication, and relates to a driving device and a driving method based on a FlexRay bus and a CAN bus. The driving device comprises a power panel, a control panel, a driving panel, a FlexRay bus board, a motherboard and a box body. The driving device has the advantages of having both a FlexRay bus and a CAN bus, being capable of independently using any single bus or two buses and simultaneously using the buses and bearing the function of bus conversion, having multi-path acquisition and driving capabilities, realizing the quick and efficient response, control and driving of each part in the system by the acquisition driving device, being used as a core control device for a special vehicle environmental environment control system, and having good application prospect.

Description

Driving device and driving method based on FlexRay bus and CAN bus
Technical Field
The invention belongs to the technical field of communication, and relates to a driving device and a driving method based on a FlexRay bus and a CAN bus.
Background
At present, with the higher integration degree of special vehicle equipment in troops, the requirements on bus speed and efficiency gradually become higher, bus communication not only provides an interaction channel of each equipment, but also determines the upper limit of the response time of the special vehicle to emergency conditions. Therefore, a new acquisition driving device is needed to be researched, data sharing and integration are realized, and the aim of environmental control of armored vehicles is fulfilled.
Disclosure of Invention
Objects of the invention
The invention aims to provide a driving device and a driving method based on a FlexRay bus and a CAN bus, wherein a received instruction CAN be from the FlexRay bus or the CAN bus, compared with the method which CAN only receive the CAN bus instruction and then drive an executing mechanism originally, the driving method which CAN simultaneously receive the FlexRay bus and the CAN bus instruction and then drive the executing mechanism is provided by the invention, the driving method is applied to the control of an internal environment system of an armored vehicle, the acquisition of equipment information of the internal environment system of the vehicle is realized by adopting a dual-core system, the information interaction with a terminal is unified, an independent slot is adopted, the uploading of equipment state is carried out by utilizing the FlexRay bus protocol, the reading of required information data in the bus network CAN be realized by scanning the bus network, the sharing of the data is realized, and the executing mechanism is driven according to the bus instruction and the purpose of controlling the environment system is achieved.
(II) technical scheme of the invention
The acquisition driving device of the armored vehicle environment control system based on the FlexRay bus and the CAN bus has the characteristic of universality, realizes the functions of receiving, sending, converting and the like of the FlexRay bus and the CAN bus through a dual-core mode, CAN acquire various signals for analysis, drives a corresponding executing mechanism to adjust the environment state of a passenger compartment of a special vehicle, performs data interaction through the FlexRay bus and the CAN bus, realizes data sharing and integration, and realizes the purpose of environment control of the armored vehicle.
One aspect of the invention provides a driving device based on a FlexRay bus and a CAN bus, which comprises a power panel, a control panel, a driving panel, a FlexRay bus board, a motherboard and a box body;
the box body mainly comprises a plurality of square disc sockets and a shell; the shell is used for assembling a power supply board, a control board, a driving board, a FlexRay bus board and a motherboard; various sockets are used for external equipment connection of the driving device;
the motherboard is provided with a power panel, a control panel, a drive board and a rectangular socket corresponding to the connectors of the FlexRay bus board; the power panel, the control panel, the drive board and the FlexRay bus board are respectively assembled on the motherboard through rectangular sockets;
the power panel is integrated with a front-end protection circuit, a power module and an output circuit, and can provide one path of 9-36V input, one path of 24V output, one path of 12V output and two paths of 5V output after voltage stabilization, and power is supplied to other units through a power panel bottom plate;
the CAN bus unit is integrated on the control panel, comprises a master controller, a CAN communication module 1, a CAN communication module 2, a control ground and a bus ground, CAN realize all hardware acquisition in an environment control system, reports data through the CAN bus after finishing and analysis, and has digital quantity acquisition and level driving capability;
the driving unit is integrated on the driving board, comprises a relay and a resistor, and can receive a level driving signal from the control board to drive the corresponding relay to drive the high-power actuating mechanism;
the FlexRay bus board is integrated with a FlexRay bus unit, the FlexRay bus unit comprises a master controller, a CAN communication module, a FlexRay communication controller, a FlexRay communication module A, a FlexRay communication module B, a connector, a control ground and a bus ground, data processing and transmission of the CAN bus or the FlexRay bus CAN be realized, and conversion of the two buses CAN also be realized according to a communication protocol.
Furthermore, in the FlexRay bus unit, the master is connected with the FlexRay communication controller, receives the state information of all hardware in the environment control system sent by the FlexRay communication controller, processes the data retrieved from the FlexRay communication controller and the CAN communication controller, and then optionally selects to send the data to the FlexRay communication controller or the CAN communication controller, and sends the configuration data to the FlexRay communication controller; the FlexRay communication controller is connected with a FlexRay communication module A and a FlexRay communication module B, sends instructions to control the FlexRay communication module A and the FlexRay communication module B, and receives data quantity acquisition information of all hardware in the environment control system sent by the FlexRay communication module A and the FlexRay communication module B or transmits data sent by the FlexRay communication controller to external equipment through a connector; the FlexRay communication module A and the FlexRay communication module B are connected with external equipment through connectors and can perform data interaction with the external equipment through a FlexRay bus topology network; the control ground and the bus ground set isolation.
Furthermore, the FlexRay communication module has the functions of isolation and common-mode filtering, and the communication quality of the bus is ensured.
Furthermore, the master controller is connected with the CAN communication controller, and is used for interacting communication data with the CAN communication controller, receiving state information of all hardware in the environment control system sent by the CAN communication controller and sending configuration data to the CAN communication controller; the CAN communication controller is connected with the CAN communication module 1 and the CAN communication module 2, sends instructions to control the CAN communication module 1 and the CAN communication module 2 and receives data quantity acquisition information of all hardware in the environment control system, which is sent by the CAN communication module 1 and the CAN communication module 2; the CAN communication module 1 is connected with a CAN communication module of the FlexRay bus unit and external equipment, receives data of a FlexRay bus topology network sent by the FlexRay bus unit, and performs data interaction with the external equipment through a CAN bus; the CAN communication module 2 is connected with external equipment through an external navigation plug and CAN perform data interaction with the external equipment; the control ground and the bus ground set isolation.
Furthermore, the CAN communication module has the function of surge resistance, and the communication quality of the bus is guaranteed.
Further, the rectangular socket has a mis-insertion prevention design.
Another aspect of the present invention provides a FlexRay bus and CAN bus based driving method, including the following steps:
1. initializing the CAN equipment; configuring a CAN equipment register, starting parameter configuration and enabling interruption, and configuring a unique ID for each node;
2. initializing a FlexRay device; configuring a register of the FlexRay equipment, starting parameter configuration, setting scanning time of the FlexRay network, and configuring a unique slot for each node;
3. level driving and external device driving;
initializing an I/O port of a controller, analyzing a control instruction transmitted by a CAN bus network and a Flexray bus network according to parameter settings of the CAN device and the Flexray device during initialization, and executing to pull up or pull down the level of the I/O port to enable a corresponding optical coupler to be switched on or off so as to achieve the purpose of controlling the external device to work or stop;
when the external equipment receives a CAN bus signal, the driving device extracts the related data in the Flexray bus network or the CAN bus network, converts the command by using the ID distributed during initialization and the set parameters, and transmits the command in a CAN bus mode;
when the external equipment receives a Flexray bus signal, the driving device extracts relevant data in a Flexray bus network or a CAN bus network, and then converts an instruction by using a slot distributed during initialization and a set parameter and transmits the instruction in a Flexray bus mode.
The invention has the beneficial effects that: compared with the original control device, the driving device has the advantages that the FlexRay bus and the CAN bus are integrated, any single bus or two buses CAN be independently used and simultaneously used for bearing the bus conversion function, the multi-channel acquisition and driving capability is realized, the acquisition driving device CAN quickly and efficiently respond, control and drive each component in the system, the acquisition driving device CAN be used as a core control device for a special vehicle environment control system, and the application prospect is good.
Drawings
FIG. 1: the invention collects the block diagram of the driving device;
FIG. 2: the FlexRay bus unit of the invention forms a block diagram;
FIG. 3: the control unit CAN bus of the invention forms a block diagram;
FIG. 4: the structure of the motherboard of the invention;
FIG. 5: the structure of the box body of the invention;
FIG. 6: the invention relates to a cable connection diagram.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
fig. 1 shows an acquisition driving device of the present invention, which includes a power board, a control board, a driving board, a FlexRay bus board, a motherboard, and a box body, wherein different units are connected by different connectors to prevent misplugging.
A front-end protection circuit, a power supply module and an output circuit are integrated on the power supply board, and the power supply board can provide one path of 9-36V input, one path of 24V output, one path of 12V output and two paths of 5V output after voltage stabilization. The rest units are powered through the bottom plate.
Fig. 3 shows a CAN bus portion of the present invention, a CAN bus unit is integrated on a control panel, and the CAN bus unit includes a master controller, a CAN communication module 1, a CAN communication module 2, a control ground and a bus ground, which CAN realize all hardware acquisition in an environment control system, report data through a CAN bus after finishing and analyzing, and have digital quantity acquisition and level driving capability at the same time. The main controller is connected with the CAN communication controller and is used for interacting communication data with the CAN communication controller, receiving state information of all hardware in the environment control system sent by the CAN communication controller and sending configuration data to the CAN communication controller; the CAN communication controller is connected with the CAN communication module 1 and the CAN communication module 2, and is used for sending instructions to control the CAN communication module 1 and the CAN communication module 2 and receiving data quantity acquisition information of all hardware in the environment control system, which is sent by the CAN communication module 1 and the CAN communication module 2; the CAN communication module 1 is connected with a CAN communication module of the FlexRay bus unit and external equipment, receives data of a FlexRay bus topology network sent by the FlexRay bus unit, and performs data interaction with all hardware in the environment control system through a CAN bus; the CAN communication module 2 is connected with external equipment through an external navigation plug, and CAN perform data interaction with the external equipment. The digital quantity acquisition information is transmitted to the bottom plate by the external plug-in unit and then transmitted to the control unit for data processing. The control ground and the bus ground set isolation. In the invention, the CAN communication module has the function of anti-surge, thereby ensuring the communication quality of the bus.
The driving unit is integrated on the driving plate, mainly comprises a relay and a resistor, can receive level driving signals from the control plate, drives the corresponding relay to drive the high-power executing mechanism, and can meet the power distribution control (11 paths) of all power utilization parts of the environment control system.
Fig. 2 shows a FlexRay bus part of the present invention, a FlexRay bus unit is integrally designed on a FlexRay bus board, and the FlexRay bus unit mainly comprises a master controller, a CAN communication module, a FlexRay communication controller, a FlexRay communication module a, a FlexRay communication module B, a connector, a control ground and a bus ground, and CAN implement data processing and transmission of the CAN bus or the FlexRay bus, and also CAN implement conversion of two buses according to a communication protocol. The master controller CAN receive state information of all hardware in the environment control system sent by the FlexRay communication controller, process data recovered from the FlexRay communication controller and the CAN communication controller, optionally select to send the processed data to the FlexRay communication controller or the CAN communication controller, and send configuration data to the FlexRay communication controller; the FlexRay communication controller is connected with the FlexRay communication module A and the FlexRay communication module B, is used for sending instructions to control the FlexRay communication module A and the FlexRay communication module B, and receiving data quantity acquisition information of all hardware in the environment control system sent by the FlexRay communication module A and the FlexRay communication module B or transmitting data sent by the FlexRay communication controller to external equipment through a connector; the FlexRay communication module A and the FlexRay communication module B are connected with external equipment through connectors and can perform data interaction with the external equipment inside and outside the environment control system through a FlexRay bus topology network. The control ground and the bus ground set isolation. In the invention, the FlexRay communication module has the functions of isolation and common-mode filtering, thereby ensuring the communication quality of the bus.
The main controller of the FlexRay bus unit is connected with the FlexRay communication controller and the CAN communication controller at the same time, data CAN be received back from the FlexRay communication controller and the CAN communication controller, then the data are processed, the data CAN be sent out in a communication mode of the FlexRay bus or the CAN bus at will, data interaction is carried out with other units, and the data conversion capability of the FlexRay bus or the CAN bus is realized.
Fig. 4 is a structural diagram of a motherboard, which is provided with rectangular sockets a to E corresponding to connectors of a power board, a control board, a drive board and a FlexRay bus board, wherein the rectangular sockets a to E have an anti-misplug design, and all components of the driving device are combined into a whole and then are connected to the connector of the box body through cables by an external socket.
Fig. 5 is a structural diagram of the box body of the present invention, and the box body mainly comprises square disc sockets XS1, XS2, XS3, XS4, XS5, XS6 and a shell. The shell is used for assembling a power supply board, a control board, a driving board, a FlexRay bus board and a motherboard, and various sockets are used for connecting external equipment of the driving device.
Fig. 6 shows the connection diagram of the cable according to the present invention, wherein the cable is composed of rectangular sockets a-E and square disc sockets XS 1-XS 6 and wires, and is used for connecting various components in the driving device.
The driving process based on the driving device is as follows:
the method comprises the steps of initializing CAN equipment, configuring a CAN equipment register, starting parameter configuration and enabling interruption, and configuring a unique ID for each node.
And then initializing FlexRay equipment, configuring a register of the FlexRay equipment, starting parameter configuration, setting scanning time of a FlexRay network, and configuring a unique slot for each node.
Initializing an I/O port of a controller, analyzing a control instruction transmitted by a CAN bus network and a Flexray bus network according to parameter settings of the CAN device and the Flexray device during initialization, and executing to pull up or pull down the level of the I/O port to enable a corresponding optical coupler to be switched on or off so as to achieve the purpose of controlling the external device to work or stop, which is a method for realizing level driving; the on-off of part of the optical coupler can influence the on-off of the relay, and the relay is switched on or off, so that the purpose of controlling the external equipment to work or stop is achieved, and the method is a method for realizing the driving of the power device.
The method for driving the CAN bus external equipment is characterized in that only CAN bus signals CAN be received, then data related to the Flexray bus network or the CAN bus network in the Flexray bus network or the CAN bus network is extracted by a driving device according to the condition that an instruction works, and then the instruction is transmitted in a CAN bus mode after being converted by using an ID (identity) distributed during initialization and set parameters.
The method for driving the external equipment of the Flexray bus is characterized in that only Flexray bus signals CAN be received in the external equipment, then data related to the Flexray bus network or the CAN bus network in the Flexray bus network or the CAN bus network are extracted by a driving device according to the condition of instruction work, then the slot distributed during initialization and the set parameters are used for converting the instruction, and then the instruction is transmitted in a Flexray bus mode.
The invention can cover the collection and the drive of environment control systems of different types, models and various types in different cabins, adopts a universal soft and hard mode, realizes the collection control of hardware of all the current environment control systems, has the advantages of high integration, informatization, generalization and the like, simultaneously meets the data interaction mode of two buses, and can bear the function of bus conversion.

Claims (7)

1. A driving device based on a FlexRay bus and a CAN bus is characterized by comprising a power panel, a control panel, a driving panel, a FlexRay bus board, a motherboard and a box body;
the box body mainly comprises a plurality of square disc sockets and a shell; the shell is used for assembling a power supply board, a control board, a driving board, a FlexRay bus board and a motherboard; various sockets are used for external equipment connection of the driving device;
the motherboard is provided with a power panel, a control panel, a drive board and a rectangular socket corresponding to the connectors of the FlexRay bus board; the power panel, the control panel, the driving panel and the FlexRay bus board are respectively assembled on the motherboard through rectangular sockets;
the power panel is integrated with a front-end protection circuit, a power module and an output circuit, and can provide one path of 9-36V input, one path of 24V output, one path of 12V output and two paths of 5V output after voltage stabilization, and power is supplied to other units through a power panel bottom plate;
the CAN bus unit is integrated on the control panel, comprises a master controller, a CAN communication module 1, a CAN communication module 2, a control ground and a bus ground, CAN realize all hardware acquisition in an environment control system, reports data through the CAN bus after finishing and analysis, and has digital quantity acquisition and level driving capability;
the driving unit is integrated on the driving plate and comprises a relay and a resistor, and the relay and the resistor can receive level driving signals from the control plate and drive the corresponding relay to drive the high-power actuating mechanism;
a FlexRay bus unit is integrated on a FlexRay bus board and comprises a main controller, a CAN communication module, a FlexRay communication controller, a FlexRay communication module A, a FlexRay communication module B, a connector, a control ground and a bus ground, data processing and transmission of the CAN bus or the FlexRay bus CAN be realized, and conversion of the two buses CAN also be realized according to a communication protocol.
2. The FlexRay-bus-and-CAN-bus-based driving device according to claim 1, wherein in the FlexRay bus unit, the master is connected with the FlexRay communication controller, receives status information of all hardware in the environment control system sent by the FlexRay communication controller, processes data retrieved from the FlexRay communication controller and the CAN communication controller, and then optionally selects to send to the FlexRay communication controller or the CAN communication controller, and sends configuration data to the FlexRay communication controller; the FlexRay communication controller is connected with a FlexRay communication module A and a FlexRay communication module B, sends instructions to control the FlexRay communication module A and the FlexRay communication module B, and receives data quantity acquisition information of all hardware in the environment control system sent by the FlexRay communication module A and the FlexRay communication module B or transmits data sent by the FlexRay communication controller to external equipment through a connector; the FlexRay communication module A and the FlexRay communication module B are connected with external equipment through connectors and can perform data interaction with the external equipment inside and outside the environment control system through a FlexRay bus topology network; the control ground and the bus ground set isolation.
3. A FlexRay-bus and CAN-bus based driver according to claim 2, wherein the FlexRay communication module has isolation and common-mode filtering functions, ensuring the communication quality of the bus.
4. The FlexRay-bus-and-CAN-bus-based driving device as claimed in claim 1, wherein the master controller is connected to the CAN communication controller, and is configured to communicate data with the CAN communication controller interactively, receive status information of all hardware in the environmental control system from the CAN communication controller, and send configuration data to the CAN communication controller; the CAN communication controller is connected with the CAN communication module 1 and the CAN communication module 2, sends instructions to control the CAN communication module 1 and the CAN communication module 2 and receives data quantity acquisition information of all hardware in the environment control system, which is sent by the CAN communication module 1 and the CAN communication module 2; the CAN communication module 1 is connected with a CAN communication module of the FlexRay bus unit and external equipment, receives data of a FlexRay bus topology network sent by the FlexRay bus unit, and performs data interaction with the internal and external equipment of the environment control system through a CAN bus; the CAN communication module 2 is connected with external equipment through an external navigation plug and CAN perform data interaction with the external equipment; the control ground and the bus ground set isolation.
5. A driving device based on FlexRay bus and CAN bus as claimed in claim 4, characterized in that the CAN communication module has anti-surge function, which ensures the communication quality of the bus.
6. A FlexRay-bus and CAN-bus based drive device according to claim 1, characterized in that the rectangular socket is of a misplug-proof design.
7. The driving method of the driving apparatus according to any one of claims 1 to 6, characterized by comprising the steps of:
1. initializing the CAN equipment; configuring a CAN equipment register, starting parameter configuration and enabling interruption, and configuring a unique ID for each node;
2. initializing a FlexRay device; configuring a register of the FlexRay equipment, starting parameter configuration, setting scanning time of the FlexRay network, and configuring a unique slot for each node;
3. level driving and external device driving;
initializing an I/O port of a controller, analyzing a control instruction transmitted by a CAN bus network and a Flexray bus network according to parameter settings of the CAN device and the Flexray device during initialization, and executing to pull up or pull down the level of the I/O port to enable a corresponding optical coupler to be switched on or switched off so as to achieve the purpose of controlling the external device to work or stop;
when the external equipment receives a CAN bus signal, the driving device extracts the related data in the Flexray bus network or the CAN bus network, converts the command by using the ID distributed during initialization and the set parameters, and transmits the converted command in a CAN bus mode;
when the external equipment receives a Flexray bus signal, the driving device extracts data related to the Flexray bus network or the CAN bus network, then converts the command into a command by using a slot distributed during initialization and a set parameter, and transmits the command in a Flexray bus mode.
CN202211158330.4A 2022-09-22 2022-09-22 Driving device and driving method based on FlexRay bus and CAN bus Pending CN115544085A (en)

Priority Applications (1)

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CN202211158330.4A CN115544085A (en) 2022-09-22 2022-09-22 Driving device and driving method based on FlexRay bus and CAN bus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211158330.4A CN115544085A (en) 2022-09-22 2022-09-22 Driving device and driving method based on FlexRay bus and CAN bus

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CN115544085A true CN115544085A (en) 2022-12-30

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