CN110532206A - Vehicle and its vehicle-mounted multi-controller communication system and usb hub - Google Patents
Vehicle and its vehicle-mounted multi-controller communication system and usb hub Download PDFInfo
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- CN110532206A CN110532206A CN201810509893.0A CN201810509893A CN110532206A CN 110532206 A CN110532206 A CN 110532206A CN 201810509893 A CN201810509893 A CN 201810509893A CN 110532206 A CN110532206 A CN 110532206A
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- 230000006870 function Effects 0.000 description 14
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- 238000005516 engineering process Methods 0.000 description 10
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Classifications
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- 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
- B60R16/023—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 for transmission of signals between vehicle parts or subsystems
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- 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
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/38—Universal adapter
- G06F2213/3812—USB port controller
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Abstract
This application involves communication interface technique fields, a kind of vehicle and its vehicle-mounted multi-controller communication system and usb hub are provided, the usb hub includes at least the first USB interface, secondary USB interface and third USB interface, first USB interface is for being connected to vehicle-mounted primary processor, the secondary USB interface is for being connected to vehicle-mounted coprocessor, the third USB interface is for being connected to the electronic unit for having sub-processor in vehicle-mounted, to realize the high-speed communication between electronic unit and the primary processor, the coprocessor.Through the above way, the application can effectively guarantee the high speed efficient communication between electronic unit and each processor, it avoids being limited by I2C, UART or SPI mode that traffic rate must be used low, the higher USB mode of transmission rate can be used, the interactive processing capacity with system of high speed for meeting more big data quantity, improves user experience.
Description
Technical field
This application involves communication interface technique fields, and in particular to a kind of usb hub between vehicle-mounted multi-controller,
Further relate to a kind of vehicle-mounted multi-controller communication system, and the vehicle using the vehicle-mounted multi-controller communication system.
Background technique
With the fast development of vehicle technology, more and more automobiles are universal to have used internet of things functional, and with interconnection
The extreme enrichment of the development of network technology and various hardware, application software, technology of Internet of things have also obtained great development.Internet of Things
It is considered as the application extension of internet, the essence of Internet of Things, which sums up, is mainly reflected in three aspects: first is that internet feature,
The object networked to needs has to can be realized the internet to interconnect；Second is that identification and communication feature, that is, be included in object
" object " of networking has to have the function that automatic identification is communicated with object object；Third is that intelligent feature, i.e. network system should have
The characteristics of automation, self-feedback and intelligent control.
On the other hand, application of more and more electronic systems on automobile, automotive electronic technology function are become stronger day by day
With the increasingly complication of system, the shared orthofunction between each system of data communication between vehicle electronic device becomes more next
It is more important.Each ECU (electronic control unit) is internal and is to automotive electronics net to the fast exchange of external data, high reliability
The requirement of network system.Primary processor, coprocessor are generally included inside each ECU, also often with 4G (forth generation mobile communication
Technology) electronic units such as module.High-speed communication is usually needed just to be able to satisfy system to the high speed of data between these electronic units
High-speed communication between processing and each electric component.
However, these electronic units usually only have a USB (Universal Serial Bus, universal serial bus)
Interface.To retain external USB interface, the interaction between internal element have to just use I2C, and (bidirectional two-line synchronous serial is total
Line), UART (universal asynchronous receiving-transmitting transmitter, Universal Asynchronous Receiver/Transmitter) or SPI
(Serial Peripheral Interface (SPI), Serial Peripheral Interface) etc. compared with low speed mode so that system entirety rate of interaction
It is substantially reduced with data processing performance.
It is insufficient for the various aspects of the prior art, present inventor by further investigation, propose a kind of vehicle and its
Vehicle-mounted multi-controller communication system and usb hub.
Summary of the invention
The purpose of the application is, provides a kind of vehicle and its vehicle-mounted multi-controller communication system and usb hub, energy
Enough high speed efficient communications effectively guaranteed between electronic unit and each processor, avoiding being limited by must use traffic rate low
Under I2C, UART or SPI mode, can use the higher USB mode of transmission rate, meet more big data quantity high speed interaction
With the processing capacity of system, improve user experience.
In order to solve the above technical problems, the application provides a kind of usb hub between vehicle-mounted multi-controller, wherein
The usb hub includes at least:
First USB interface, for being connected to vehicle-mounted primary processor；
Secondary USB interface, for being connected to vehicle-mounted coprocessor；
Third USB interface, for being connected to the electronic unit for having sub-processor in vehicle-mounted, to realize electronic unit and institute
State the high-speed communication between primary processor, the coprocessor.
Wherein, the electronic unit of the third USB interface connection includes car body control module, audio ECU, car door ECU, seat
Chair ECU, charge control ECU, Engine ECU, HV-ECU, air-conditioner ECU and 4G module.
Wherein, the usb hub include single relaying network segment hub, multisegment hub, port switch hub,
One of network interconnection hub and switch hub or any combination.
Wherein, the usb hub further include:
Power supply control chip is connect with vehicle power supply and vehicle body USB interface respectively；
HUB chip is connect with power supply control chip and vehicle body USB interface respectively；
Expanding USB interface is connect with power supply control chip and HUB chip respectively at least provided with two.
Wherein, the usb hub further include for providing the switching circuit of charge protection for expanding USB interface, it is described
Switching circuit is set between expanding USB interface and power supply control chip.
Wherein, at least one in all expanding USB interfaces is USB-Mini-B interface.
In order to solve the above technical problems, the application also provides a kind of vehicle-mounted multi-controller communication system, wherein described vehicle-mounted
Multi-controller communication system includes usb hub, primary processor, coprocessor and the electronic unit for having sub-processor, described
Usb hub includes at least:
First USB interface, for being connected to the primary processor；
Secondary USB interface, for being connected to the coprocessor；
Third USB interface, for being connected to the electronic unit, to realize electronic unit and the primary processor, described
High-speed communication between coprocessor.
Wherein, the electronic unit includes car body control module, audio ECU, car door ECU, seat ECU, charge control
ECU, Engine ECU, HV-ECU, air-conditioner ECU and 4G module.
Wherein, the usb hub include single relaying network segment hub, multisegment hub, port switch hub,
One of network interconnection hub and switch hub or any combination.
Wherein, the usb hub further include:
Power supply control chip is connect with vehicle power supply and vehicle body USB interface respectively；
HUB chip is connect with power supply control chip and vehicle body USB interface respectively；
Expanding USB interface is connect with power supply control chip and HUB chip respectively at least provided with two；
For providing the switching circuit of charge protection for expanding USB interface, the switching circuit be set to expanding USB interface and
Between power supply control chip.
In order to solve the above technical problems, the application also provides a kind of vehicle, wherein the vehicle configuration has any above-mentioned
Vehicle-mounted multi-controller communication system.
The application vehicle and its vehicle-mounted multi-controller communication system and usb hub, the usb hub include at least the
One USB interface, secondary USB interface and third USB interface, first USB interface is for being connected to vehicle-mounted primary processor, institute
It states secondary USB interface and has sub- place for being connected in vehicle-mounted for being connected to vehicle-mounted coprocessor, the third USB interface
The electronic unit of device is managed, to realize the high-speed communication between electronic unit and the primary processor, the coprocessor.By upper
Mode is stated, the application can effectively guarantee the high speed efficient communication between electronic unit and each processor, and avoiding being limited by must
I2C, UART or SPI mode that traffic rate must be used low can use the higher USB mode of transmission rate, meet bigger
The interactive processing capacity with system of the high speed of data volume, improves user experience.
Above description is only the general introduction of technical scheme, in order to better understand the technological means of the application,
And it can be implemented in accordance with the contents of the specification, and in order to allow the above and other objects, features and advantages of the application can
It is clearer and more comprehensible, it is special below to lift preferred embodiment, and cooperate attached drawing, detailed description are as follows.
Detailed description of the invention
Fig. 1 is the connection schematic diagram of the vehicle-mounted multi-controller communication system of the application.
Specific embodiment
Further to illustrate that the application is the technical means and efficacy reaching predetermined application purpose and being taken, below in conjunction with
Attached drawing and preferred embodiment, to the specific reality according to the application vehicle and its vehicle-mounted multi-controller communication system and usb hub
Mode, method, step, feature and its effect are applied, detailed description are as follows.
Aforementioned and other technology contents, feature and effect in relation to the application refer to the preferable reality of schema in following cooperation
Applying in the detailed description of example can clearly appear from.By the explanation of specific embodiment, when can be that reach predetermined mesh to the application
The technological means taken and effect be able to more deeply and it is specific understand, however institute's accompanying drawings are only to provide with reference to and say
It is bright to be used, not it is used to limit the application.
Referring to Fig. 1, Fig. 1 is the connection schematic diagram of the vehicle-mounted multi-controller communication system of the application.
In the present embodiment, the vehicle-mounted multi-controller communication system may include usb hub 10, primary processor
11, coprocessor 12 and has the electronic unit 13 of sub-processor.
It should be noted that usb hub 10 described in present embodiment includes at least the first usb 1 01, the 2nd USB
03: the first usb 1 01 of interface 102 and third usb 1, for being connected to the primary processor 11；Secondary USB interface
102, for being connected to the coprocessor 12；Third usb 1 03, for being connected to the electronic unit 13, to realize electricity
High-speed communication between subelement 13 and the primary processor 11, the coprocessor 12.
Specifically, the electronic unit 13 can specifically include car body control module, audio ECU, car door ECU, seat
ECU, charge control ECU, Engine ECU, HV-ECU, air-conditioner ECU and 4G module.
In the present embodiment, the usb hub 10 can specifically include single relaying network segment hub, multisegment line concentration
One of device, port switch hub, network interconnection hub and switch hub or any combination.For changing
It, the application can be by the way of one or more hubs, to meet different port needs.
In a specific example, the usb hub 10 can also include power supply control chip, HUB (hub) chip,
Expanding USB interface and switching circuit: the power supply control chip is connect with vehicle power supply and vehicle body USB interface respectively；It is described
HUB chip is connect with power supply control chip and vehicle body USB interface respectively；The expanding USB interface, at least provided with two, respectively
It is connect with power supply control chip and HUB chip；The switching circuit is used to provide charge protection for expanding USB interface, described to open
Powered-down road is set between expanding USB interface and power supply control chip.
It should be noted that in the present embodiment, in primary processor 11, coprocessor 12 and the electricity for having sub-processor
Subelement 13 is by the way of usb hub 10, i.e., by the way of USB HUB, since the HUB of the application can be multiport
Transponder, even if certain route produces failure in network, have no effect on other routes when using HUB as center equipment
Work.
For example, the application usb hub 10 can be used in star-like and tree-network topology structure, with RJ45 interface
It is connected with each host.
It should be noted that the usb hub 10 of the application can use passive HUB, active HUB, intelligence HUB.
Wherein, the application usb hub 10 specifically can support USB2.0 using USB2.0 HUB, and theoretical bandwidth reaches
480Mbps；Alternatively, supporting USB3.0, backward compatible USB2.0/1.1 using USB3.0 HUB, theoretical bandwidth reaches 5Gbps；Or
Person supports USB3.1, backward compatible USB3.0/2.0/1.1 using USB3.1 HUB, and theoretical bandwidth reaches 10Gbps.
When the application usb hub 10 is using non-management hub, central network connection is provided by industry ethernet, with
Star-shaped form connects, and can be passive, is also possible to active.
When the application usb hub 10 is using stackable hub, 8 transponders can be set and can direct phase each other
Even, not only at low cost but also simple and easy.
When the application usb hub 10 is using chassis hub, it can be inserted on its backplane circuit plate a plurality of types of
Module, since the bottom plate of hub has prepared multiple bus to insertion module, these insertion modules are adapted to different sections, such as
Ethernet, Fast Ethernet, Fiber Distributed Data Interface (Fiber Distributed Data Interface, FDDl) and
In asynchronous transfer mode (Asynchronous Transfer Mode, ATM).
It should be noted that can be respectively adopted following several when the application usb hub 10 is according to network type difference
The mode of hub.
It can be simple midsequent LAN segment when the application usb hub 10 is using single relaying network segment hub
Hub, it is similar with stack ethernet concentrator or token-ring network multistation access unit (MAU) etc..
When the application usb hub 10 is using multisegment hub, multiple relaying network segments can be had, and can reduce
The information flow-rate of each network segment loads, and the information flow-rate between network segment generally requires independent bridge or router.
, can be on the basis of multisegment hub when the application usb hub 10 is using port switch hub, it will
Connection procedure automation between user port and multiple backplane segments, and by increasing port switching matrix (PSM) Lai Shixian.
When the application usb hub 10 is using network interconnection hub, port switch hub focuses on port exchange, and
Network interconnection hub can provide between multiple network segments of backboard it is some type of be integrated and connected, the function pass through a synthesis
Bridge, router or lan switch are completed.
When the application usb hub 10 is using switch hub, it can be replaced using a pure exchange system
Traditional share medium relays network segment, and realizes the partial function of interchanger.
As described above, the application can also realize the function of cascade by the way of multiple hubs, and certainly, line concentration
Need to provide on device can cascade port, the printed words of " Uplink " or " MDI " can be designated as on this port, with this port and other
Hub carry out cascade.
The application can effectively guarantee the high speed efficient communication between electronic unit and each processor, and avoiding being limited by must
I2C, UART or SPI mode that traffic rate must be used low can use the higher USB mode of transmission rate, meet bigger
The interactive processing capacity with system of the high speed of data volume, improves user experience.
In order to solve the above technical problems, the application also provides a kind of vehicle, wherein the vehicle configuration has above-mentioned vehicle-mounted
Multi-controller communication system.
Specifically, as shown in Figure 1, the vehicle-mounted multi-controller communication system may include usb hub 10, main process task
Device 11, coprocessor 12 and the electronic unit 13 for having sub-processor.
It should be noted that usb hub 10 described in present embodiment includes at least the first usb 1 01, the 2nd USB
03: the first usb 1 01 of interface 102 and third usb 1, for being connected to the primary processor 11；Secondary USB interface
102, for being connected to the coprocessor 12；Third usb 1 03, for being connected to the electronic unit 13, to realize electricity
High-speed communication between subelement 13 and the primary processor 11, the coprocessor 12.
Specifically, the electronic unit 13 can specifically include car body control module, audio ECU, car door ECU, seat
ECU, charge control ECU, Engine ECU, HV-ECU, air-conditioner ECU and 4G module.
In the present embodiment, the usb hub 10 can specifically include single relaying network segment hub, multisegment line concentration
One of device, port switch hub, network interconnection hub and switch hub or any combination.For changing
It, the application can be by the way of one or more hubs, to meet different port needs.
In a specific example, the usb hub 10 can also include power supply control chip, HUB chip, extension USB
Interface and switching circuit: the power supply control chip is connect with vehicle power supply and vehicle body USB interface respectively；The HUB chip,
It is connect respectively with power supply control chip and vehicle body USB interface；The expanding USB interface, at least provided with two, respectively with power supply control
Coremaking piece is connected with HUB chip；The switching circuit is used to provide charge protection for expanding USB interface, and the switching circuit is set
Between expanding USB interface and power supply control chip.
It should be noted that in the present embodiment, in primary processor 11, coprocessor 12 and the electricity for having sub-processor
Subelement 13 is by the way of usb hub 10, i.e., by the way of USB HUB, since the HUB of the application can be multiport
Transponder, even if certain route produces failure in network, have no effect on other routes when using HUB as center equipment
Work.
For example, the application usb hub 10 can be used in star-like and tree-network topology structure, with RJ45 interface
It is connected with each host.
It should be noted that the usb hub 10 of the application can use passive HUB, active HUB, intelligence HUB.
Wherein, the application usb hub 10 specifically can support USB2.0 using USB2.0 HUB, and theoretical bandwidth reaches
480Mbps；Alternatively, supporting USB3.0, backward compatible USB2.0/1.1 using USB3.0 HUB, theoretical bandwidth reaches 5Gbps；Or
Person supports USB3.1, backward compatible USB3.0/2.0/1.1 using USB3.1 HUB, and theoretical bandwidth reaches 10Gbps.
When the application usb hub 10 is using non-management hub, central network connection is provided by industry ethernet, with
Star-shaped form connects, and can be passive, is also possible to active.
When the application usb hub 10 is using stackable hub, 8 transponders can be set and can direct phase each other
Even, not only at low cost but also simple and easy.
When the application usb hub 10 is using chassis hub, it can be inserted on its backplane circuit plate a plurality of types of
Module, since the bottom plate of hub has prepared multiple bus to insertion module, these insertion modules are adapted to different sections, such as
In Ethernet, Fast Ethernet, Fiber Distributed Data Interface and asynchronous transfer mode.
It should be noted that can be respectively adopted following several when the application usb hub 10 is according to network type difference
The mode of hub.
It can be simple midsequent LAN segment when the application usb hub 10 is using single relaying network segment hub
Hub, it is similar with stack ethernet concentrator or token-ring network multistation access unit (MAU) etc..
When the application usb hub 10 is using multisegment hub, multiple relaying network segments can be had, and can reduce
The information flow-rate of each network segment loads, and the information flow-rate between network segment generally requires independent bridge or router.
, can be on the basis of multisegment hub when the application usb hub 10 is using port switch hub, it will
Connection procedure automation between user port and multiple backplane segments, and realized by increasing port switching matrix.
When the application usb hub 10 is using network interconnection hub, port switch hub focuses on port exchange, and
Network interconnection hub can provide between multiple network segments of backboard it is some type of be integrated and connected, the function pass through a synthesis
Bridge, router or lan switch are completed.
When the application usb hub 10 is using switch hub, it can be replaced using a pure exchange system
Traditional share medium relays network segment, and realizes the partial function of interchanger.
As described above, the application can also realize the function of cascade by the way of multiple hubs, and certainly, line concentration
Need to provide on device can cascade port, the printed words of " Uplink " or " MDI " can be designated as on this port, with this port and other
Hub carry out cascade.
The application can effectively guarantee the high speed efficient communication between electronic unit and each processor, and avoiding being limited by must
I2C, UART or SPI mode that traffic rate must be used low can use the higher USB mode of transmission rate, meet bigger
The interactive processing capacity with system of the high speed of data volume, improves user experience.
Please continue to refer to Fig. 1, the application provides a kind of usb hub 10 between vehicle-mounted multi-controller.
As previously mentioned, usb hub 10 described in present embodiment includes at least the first usb 1 01, secondary USB interface
102 and 03: the first usb 1 01 of third usb 1, for being connected to the primary processor 11；Secondary USB interface 102 is used
In being connected to the coprocessor 12；Third usb 1 03, for being connected to the electronic unit 13, to realize electronic unit
High-speed communication between 13 and the primary processor 11, the coprocessor 12.
Specifically, the electronic unit 13 can specifically include car body control module, audio ECU, car door ECU, seat
ECU, charge control ECU, Engine ECU, HV-ECU, air-conditioner ECU and 4G module.
In the present embodiment, the usb hub 10 can specifically include single relaying network segment hub, multisegment line concentration
One of device, port switch hub, network interconnection hub and switch hub or any combination.For changing
It, the application can be by the way of one or more hubs, to meet different port needs.
In a specific example, the usb hub 10 can also include power supply control chip, HUB chip, extension USB
Interface and switching circuit: the power supply control chip is connect with vehicle power supply and vehicle body USB interface respectively；The HUB chip,
It is connect respectively with power supply control chip and vehicle body USB interface；The expanding USB interface, at least provided with two, respectively with power supply control
Coremaking piece is connected with HUB chip；The switching circuit is used to provide charge protection for expanding USB interface, and the switching circuit is set
Between expanding USB interface and power supply control chip.Wherein, at least one in all expanding USB interfaces is USB-Mini-B
Interface.
It should be noted that in the present embodiment, in primary processor 11, coprocessor 12 and the electricity for having sub-processor
Subelement 13 is by the way of usb hub 10, i.e., by the way of USB HUB, since the HUB of the application can be multiport
Transponder, even if certain route produces failure in network, have no effect on other routes when using HUB as center equipment
Work.
For example, the application usb hub 10 can be used in star-like and tree-network topology structure, with RJ45 interface
It is connected with each host.
It should be noted that the usb hub 10 of the application can use passive HUB, active HUB, intelligence HUB.
Wherein, the application usb hub 10 specifically can support USB2.0 using USB2.0 HUB, and theoretical bandwidth reaches
480Mbps；Alternatively, supporting USB3.0, backward compatible USB2.0/1.1 using USB3.0 HUB, theoretical bandwidth reaches 5Gbps；Or
Person supports USB3.1, backward compatible USB3.0/2.0/1.1 using USB3.1 HUB, and theoretical bandwidth reaches 10Gbps.
When the application usb hub 10 is using non-management hub, central network connection is provided by industry ethernet, with
Star-shaped form connects, and can be passive, is also possible to active.
When the application usb hub 10 is using stackable hub, 8 transponders can be set and can direct phase each other
Even, not only at low cost but also simple and easy.
When the application usb hub 10 is using chassis hub, it can be inserted on its backplane circuit plate a plurality of types of
Module, since the bottom plate of hub has prepared multiple bus to insertion module, these insertion modules are adapted to different sections, such as
In Ethernet, Fast Ethernet, Fiber Distributed Data Interface and asynchronous transfer mode.
It should be noted that can be respectively adopted following several when the application usb hub 10 is according to network type difference
The mode of hub.
It can be simple midsequent LAN segment when the application usb hub 10 is using single relaying network segment hub
Hub, it is similar with stack ethernet concentrator or token-ring network multistation access unit (MAU) etc..
When the application usb hub 10 is using multisegment hub, multiple relaying network segments can be had, and can reduce
The information flow-rate of each network segment loads, and the information flow-rate between network segment generally requires independent bridge or router.
, can be on the basis of multisegment hub when the application usb hub 10 is using port switch hub, it will
Connection procedure automation between user port and multiple backplane segments, and realized by increasing port switching matrix.
When the application usb hub 10 is using network interconnection hub, port switch hub focuses on port exchange, and
Network interconnection hub can provide between multiple network segments of backboard it is some type of be integrated and connected, the function pass through a synthesis
Bridge, router or lan switch are completed.
When the application usb hub 10 is using switch hub, it can be replaced using a pure exchange system
Traditional share medium relays network segment, and realizes the partial function of interchanger.
In this application, above-mentioned vehicle-mounted multi-controller communication system and usb hub can be used and have vehicle device
In the Vehicular system of equipment or vehicle TBOX.
For example, air-conditioner ECU is the ECU for controlling the on-board air conditioner as control object equipment (external equipment),
External information is obtained from the on-board air conditioner connected.Audio ECU is used as control object equipment (external equipment) for controlling
The ECU of onboard audio obtains external information from the onboard audio connected.Car door ECU is to set for controlling as control object
The ECU of each motor vehicle door arrangement of the car door of standby (external equipment) obtains external information from the motor vehicle door arrangement of connection.Seat ECU is
For controlling the ECU of each seat unit of the vehicular seats as control object equipment (external equipment), connect from via wiring
Each seat unit connect obtains external information.Charge control ECU is for controlling from as control object equipment, (outside is set
It is standby) cell apparatus electric power output or from external power supply to the ECU of the charging of the electric power of cell apparatus etc., can control logical
Cross the charge and discharge of the cell apparatus of connections such as wiring.In addition, charge control ECU can use communication appropriate as needed at any time
Path sends the information indicated in charging to each section of vehicle.
HV (hybrid power) ECU is moving between the driving carry out by battery and the driving carried out by engine
The planning of power distribution or the ECU of adjustment.HV-ECU obtains various information by CAN communication, and various based on what is obtained in this way
Information is to carry out the driving carried out by battery and by the planning or adjustment between the driving of engine progress.Engine ECU
It is the ECU of driving of the control as the engine of internal combustion engine.Engine ECU based on from by wiring or CAN connection conduct control
The various information that the various engine relevant apparatus or various other devices of object-based device (external equipment) processed obtain are sent out to control
The driving of motivation.
In the present embodiment, CAN may include three network channels CAN_1, CAN_2 and CAN_3, and vehicle can also be set
An ethernet network channel is set, wherein three CAN network channels can be logical by two car networking gateways and ethernet network
Road is connected, and for example, wherein CAN_1 network channel includes hybrid drive train, and wherein CAN_2 network channel includes
Running guarantee system, wherein CAN_3 network channel includes electric dynamometer system, and ethernet network channel includes higher management system
System, the higher management system include the people-Che-road simulation system being connected on ethernet network channel as node and comprehensive
Close information acquisition unit, the car networking gateway of the CAN_1 network channel, CAN_2 network channel and ethernet network channel
It can integrate in integrated information acquisition unit；CAN_3 network channel and the car networking gateway in ethernet network channel can collect
At in people-Che-road simulation system.
Furthermore, the node of the described CAN_1 network channel connection has: Engine ECU, motor MCU, battery BMS,
Automatic transmission TCU and hybrid controller HCU；The node of CAN_2 network channel connection has: rack TT&C system, oil
Door sensor group, power analyzer, instant oil consumption instrument, DC power cabinet, engine water temperature control system, engine motor oil temperature
Cold temperature control system in control system, motor water temperature control system and engine；The node of CAN_3 network channel connection
Have: electric dynamometer controller.
The rate of the preferred CAN_1 network channel is 250Kbps, using J1939 agreement；CAN_2 network channel
Rate be 500Kbps, using CANopen agreement；The rate of CAN_3 network channel is 1Mbps, using CANopen agreement；With
Too the rate of net network channel is 10/100Mbps, using ICP/IP protocol.
In the present embodiment, the car networking gateway can connect equipped with IEEE802.3 interface, DSPI interface, eSCI
Mouth, CAN interface, MLB interface, LIN interface and/or I2C interface.
In the present embodiment, it for example, IEEE802.3 interface can be used for connecting wireless router, is provided for vehicle
WIFI network；DSPI (supplier's manager component) interface is suitable for connecting Bluetooth adapter and NFC (close range wireless communication)
Orchestration can provide bluetooth connection and connect with NFC；ESCI interface is for connecting 4G/5G module, with internet communication；CAN interface
For connecting vehicle CAN bus；MLB interface is used to connect interior MOST (the system transmission towards media) bus, LIN interface
For connecting interior LIN (local interconnect network) bus；IC interface is for connecting DSRC (dedicated short range communication) module and fingerprint
Identification module.In addition, the application can mutually convert each different agreement by using MPC5668G chip, it will be different
Network merged.
In addition, present embodiment vehicle TBOX system, TelematicsBOX, referred to as vehicle-mounted TBOX or telematics
Device.
Present embodiment Telematics is the telecommunications (Telecommunications) and information science of telecommunication
(Informatics) synthesis is defined as leading by the computer system, wireless communication technique, satellite that are built on vehicle
Boat device exchanges the Internet technologies of information such as text, voice and provides the service system of information.Briefly just by wireless
Vehicle is accessed internet by network, provides various information necessary to driving, life for car owner.
In addition, present embodiment Telematics is wireless communication technique, satellite navigation system, network communication technology and vehicle
The synthesis for carrying computer when breaking down in vehicle driving, connects service centre by wireless communication, carries out remote vehicle and examines
Disconnected, built-in computer on the engine can recorde the state of vehicle main component, and provide accurately for maintenance personal at any time
Abort situation and reason.Information is received by user communication terminal and checks traffic map, road conditions introduction, traffic information, peace
Entirely with public security service and entertainment information service etc., in addition, the vehicle of present embodiment can also back seat be arranged electronic game
With network application (including finance, news, E-mail etc.).It can be appreciated that present embodiment provides service by Telematics,
It can be convenient the parking situation that user understands traffic information, closes on parking lot, confirm current location, it can also be with the network in family
Server connection understands visiting situation of electric appliance working order, security situation and guest etc. in family in time.
Present embodiment vehicle also settable ADAS (AdvancedDriverAssistantSystem, advanced driving auxiliary
System), it can use the above-mentioned various sensors being installed on vehicle, the environmental data inside and outside first time collecting cart,
The technical processing such as quiet, dynamic object identification, detecting and tracking are carried out, so as to allow driver to examine in the most fast time
The danger that may occur is felt, to arouse attention and improve safety.Accordingly, the application ADAS can also use radar, laser
With the sensors such as ultrasonic wave, light, heat, pressure or other for monitoring the variable of vehicle-state can be detected, vehicle is usually located at
Front/rear collision bumper, side-view mirror, inside control stick or on windshield.It is not difficult to find out that each used in above-mentioned ADAS function
Kind Intelligent hardware can access car networking system by way of ethernet link and realize communication connection, interaction.
The host of present embodiment vehicle may include logical device, circuit and/or code appropriate for realizing OSI mould
Type (OpenSystemInterconnection, inventionthe open systems interconnection reference model) five layers of operation and/or function above
It can operation.Therefore, host can be generated for the data packet of network transmission and/or be handled these data packets, and can also
The data packet received from network is handled.Meanwhile host can be one or more by executing command adapted thereto and/or operation
Application program for local user and/or one or more remote user or network node provides service.In the difference of the application
In embodiment, one or more security protocols are can be used in host.
In this application, for realizing car networking system network connection can be interchanger, can have AVB function
(AudioVideoBridging meets the standard set of IEEE802.1), and/or include one or more unmasked multiple twin
Line, every one end can have 8P8C modular connector.
The application car networking system can specifically include car body control module BCM, power bus P-CAN, Vehicle Body Bus I-
CAN, combination instrument CMIC, chassis control device and vehicle body control.
In the present embodiment, car body control module BCM can integrate the function of car networking gateway, carry out different segment,
That is signal conversion and message forwarding between power bus P-CAN and Vehicle Body Bus I-CAN etc., for example, being articulated in power bus
On controller as need communicated with the controller being articulated on Vehicle Body Bus I-CAN, then to pass through car body control module
BCM carries out signal conversion and forwarding between the two etc..
Power bus P-CAN and Vehicle Body Bus I-CAN are connected with car body control module BCM respectively.
Combination instrument CMIC is connected with power bus P-CAN, and combination instrument CMIC is connected with Vehicle Body Bus I-CAN.It is excellent
Selection of land, the combination instrument CMIC of present embodiment and different buses, as power bus P-CAN and Vehicle Body Bus I-CAN are homogeneous
Even, when combination instrument CMIC, which needs to obtain, is articulated in the controller information in any bus, without passing through Body Control mould
Block BCM carries out signal conversion and message forwarding, therefore, can reduce gateway pressure, reduces network load, and improve combination instrument
The speed of CMIC acquisition information.
Chassis control device is connected with power bus P-CAN.Vehicle body control is connected with Vehicle Body Bus I-CAN.One
In a little examples, chassis control device and vehicle body control can be carried out on power bus P-CAN and Vehicle Body Bus I-CAN respectively
The data broadcastings such as information, so as to equipment such as other Vehicle Controllers for being articulated on power bus P-CAN or Vehicle Body Bus I-CAN
The information of the broadcast is obtained, to realize the communication between the mobile units such as different controllers.
In addition, the car networking system of present embodiment vehicle, can be used two CAN bus, i.e. power bus P-CAN and
Vehicle Body Bus I-CAN, it is using car body control module BCM as gateway, combination instrument CMIC and power bus P-CAN and vehicle body is total
Line I-CAN connected structure can eliminate on one that combination instrument CMIC in traditional approach is articulated in two buses
When chassis control device or vehicle body control information by gateway forwards to the operation of combination instrument CMIC, subtract as a result,
Light pressure of the car body control module BCM as gateway, reduces network load, and more convenient by multiple bus, such as power
The information of the mobile unit mounted on bus P-CAN and Vehicle Body Bus I-CAN, which is sent on combination instrument CMIC, to be shown, is believed
Breath transmission strong real-time.
In this application, it is not difficult to find out that, primary processor 11, coprocessor 12 and other are replaced by the way of USB HUB
The low-speed communications mode such as I2C/UART/SPI between electronic unit 13 had not only kept the USB mode that module is external, but also simultaneously in satisfaction
USB high-speed communication means between portion's each unit, transmission rate are promoted to 480MBit per second from several hundred several million Bit of K/ per second, are made whole
Body transmission rate greatly improves, and meets the interactive processing capacity with system of high speed of more big data quantity.
The above is only the preferred embodiment of the application, not makes any form of restriction to the application, though
Right the application has been disclosed in a preferred embodiment above, however is not limited to the application, any technology people for being familiar with this profession
Member, is not departing within the scope of technical scheme, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, but all technical spirits pair without departing from technical scheme content, according to the application
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within technical scheme.
Claims (11)
1. a kind of usb hub between vehicle-mounted multi-controller, which is characterized in that the usb hub includes at least:
First USB interface, for being connected to vehicle-mounted primary processor；
Secondary USB interface, for being connected to vehicle-mounted coprocessor；
Third USB interface, for being connected to the electronic unit for having sub-processor in vehicle-mounted, to realize electronic unit and the master
High-speed communication between processor, the coprocessor.
2. usb hub according to claim 1, which is characterized in that the electronic unit packet of the third USB interface connection
Include car body control module, audio ECU, car door ECU, seat ECU, charge control ECU, Engine ECU, HV-ECU, air-conditioner ECU and
4G module.
3. usb hub according to claim 1, which is characterized in that the usb hub includes single relaying network segment line concentration
One of device, multisegment hub, port switch hub, network interconnection hub and switch hub are appointed
Meaning combination.
4. usb hub according to claim 1, which is characterized in that the usb hub further include:
Power supply control chip is connect with vehicle power supply and vehicle body USB interface respectively；
HUB chip is connect with power supply control chip and vehicle body USB interface respectively；
Expanding USB interface is connect with power supply control chip and HUB chip respectively at least provided with two.
5. usb hub according to claim 4, which is characterized in that the usb hub further includes for being extension
USB interface provides the switching circuit of charge protection, and the switching circuit is set between expanding USB interface and power supply control chip.
6. usb hub according to claim 4, which is characterized in that at least one in all expanding USB interfaces be
USB-Mini-B interface.
7. a kind of vehicle-mounted multi-controller communication system, which is characterized in that the vehicle-mounted multi-controller communication system includes USB set line
Device, primary processor, coprocessor and the electronic unit for having sub-processor, the usb hub include at least:
First USB interface, for being connected to the primary processor；
Secondary USB interface, for being connected to the coprocessor；
Third USB interface, for being connected to the electronic unit, to realize at electronic unit and the primary processor, the association
Manage the high-speed communication between device.
8. vehicle-mounted multi-controller communication system according to claim 7, which is characterized in that the electronic unit includes vehicle body
Control module, audio ECU, car door ECU, seat ECU, charge control ECU, Engine ECU, HV-ECU, air-conditioner ECU and 4G mould
Block.
9. vehicle-mounted multi-controller communication system according to claim 7, which is characterized in that the usb hub includes single
Relay its of network segment hub, multisegment hub, port switch hub, network interconnection hub and switch hub
One of or any combination.
10. vehicle-mounted multi-controller communication system according to claim 7, which is characterized in that the usb hub also wraps
It includes:
Power supply control chip is connect with vehicle power supply and vehicle body USB interface respectively；
HUB chip is connect with power supply control chip and vehicle body USB interface respectively；
Expanding USB interface is connect with power supply control chip and HUB chip respectively at least provided with two；
For providing the switching circuit of charge protection for expanding USB interface, the switching circuit is set to expanding USB interface and power supply
It controls between chip.
11. a kind of vehicle, which is characterized in that the described in any item vehicle-mounted more controls of the with good grounds claim 7-10 of vehicle configuration
Device communication system processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810509893.0A CN110532206A (en) | 2018-05-24 | 2018-05-24 | Vehicle and its vehicle-mounted multi-controller communication system and usb hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810509893.0A CN110532206A (en) | 2018-05-24 | 2018-05-24 | Vehicle and its vehicle-mounted multi-controller communication system and usb hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110532206A true CN110532206A (en) | 2019-12-03 |
Family
ID=68657608
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810509893.0A Pending CN110532206A (en) | 2018-05-24 | 2018-05-24 | Vehicle and its vehicle-mounted multi-controller communication system and usb hub |
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Cited By (1)
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| CN112214229A (en) * | 2020-09-11 | 2021-01-12 | 东风汽车集团有限公司 | Vehicle multi-controller software upgrading system and method based on USB communication and vehicle |
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| WO2011023944A1 (en) * | 2009-08-24 | 2011-03-03 | Hughes Electronics Limited | Ethernet over power |
| CN205264993U (en) * | 2015-12-17 | 2016-05-25 | 德尔福中央电气（上海）有限公司 | Can realize carPlay and big electricity charging's on -vehicle USB concentrator simultaneously |
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Address after: Room 208, building 4, 1411 Yecheng Road, Jiading District, Shanghai, 201821 Applicant after: Botai vehicle networking technology (Shanghai) Co.,Ltd. Address before: Room 208, building 4, 1411 Yecheng Road, Jiading District, Shanghai, 201821 Applicant before: SHANGHAI PATEO ELECTRONIC EQUIPMENT MANUFACTURING Co.,Ltd. |
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