CN109347732B - Vehicle and central gateway and control system thereof - Google Patents
Vehicle and central gateway and control system thereof Download PDFInfo
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- CN109347732B CN109347732B CN201811450995.6A CN201811450995A CN109347732B CN 109347732 B CN109347732 B CN 109347732B CN 201811450995 A CN201811450995 A CN 201811450995A CN 109347732 B CN109347732 B CN 109347732B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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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
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Abstract
The invention discloses a vehicle and a central gateway and a control system thereof, and relates to the field of vehicles. The central gateway may include: the controller comprises a circuit board, at least one Ethernet transceiver, at least one controller area network transceiver, a plurality of crystal oscillators, a controller, at least one first interface corresponding to the Ethernet transceiver and at least one second interface corresponding to the controller area network transceiver, wherein the at least one Ethernet transceiver, the at least one controller area network transceiver, the plurality of crystal oscillators and the controller are integrated on the circuit board. Each transceiver is connected with the controller and an interface respectively. Each ethernet transceiver and the controller are connected to a corresponding one of the crystal oscillators. Each transceiver may transmit signals between the controller and the interface. And the ground layer of the circuit board is provided with a hollowed area, and the orthographic projection of each crystal oscillator on the ground layer is positioned in the hollowed area. Therefore, each crystal oscillator can be effectively isolated from the stratum in the circuit board, and the anti-interference capability of the central gateway and the accuracy of data transmission can be improved.
Description
Technical Field
The invention relates to the field of vehicles, in particular to a vehicle and a central gateway and a control system thereof.
Background
A Central Gateway (CGW) in a vehicle is a central node for data transmission inside the vehicle. Electronic Control Units (ECUs) in the vehicle are connected to the CGW, and the ECUs interact with each other via the CGW.
In the related art, a controller, a plurality of transceivers and a plurality of interfaces are disposed in the CGW, and each transceiver is connected to the controller and one interface. Each of the plurality of interfaces may be connected with one ECU.
However, with the abundance of vehicle functions, the number of ECUs installed in a vehicle is also increasing continuously, and the data transmission rate is also increasing continuously, so that when data interaction is performed through the CGW, the interference between data is large, and the accuracy of the CGW in transmitting data is low.
Disclosure of Invention
The embodiment of the invention provides a vehicle, a central gateway and a control system thereof, which can solve the problem of low accuracy of CGW data transmission in the related technology. The technical scheme is as follows:
in one aspect, there is provided a central gateway of a vehicle, the central gateway including: the system comprises a circuit board, at least one Ethernet transceiver, at least one controller area network transceiver, a plurality of crystal oscillators, a controller, at least one first interface and at least one second interface, wherein the at least one Ethernet transceiver, the at least one controller area network transceiver, the plurality of crystal oscillators, the controller, the at least one first interface and the at least one second interface are integrated on the circuit board;
each ethernet transceiver is respectively connected with the controller, one crystal oscillator and a corresponding first interface, the controller is connected with one crystal oscillator, and each ethernet transceiver is used for transmitting signals between the controller and the first interface under the control of a clock signal provided by the crystal oscillator;
each controller local area network transceiver is respectively connected with the controller and a corresponding second interface and is used for transmitting signals between the controller and the second interface;
the circuit board comprises a stratum, wherein a hollowed area is arranged on the stratum, and the orthographic projection of each crystal oscillator on the stratum is located in the hollowed area.
Optionally, in the at least one ethernet transceiver and the at least one controller local area network transceiver, each transceiver is connected to the controller through a differential line, each transceiver is connected to a corresponding interface through a differential line, and the differential line is a serpentine line.
Optionally, the central gateway further includes: a plurality of common mode chokes integrated on the circuit board;
each Ethernet transceiver is connected with a corresponding first interface through one common mode choke coil;
each controller area network transceiver is connected with a corresponding one of the second interfaces through one of the common mode chokes.
Optionally, the central gateway further includes: and the crystal oscillator shell is arranged on the outer side of each crystal oscillator and is connected with the ground layer of the circuit board.
Optionally, a distance between each crystal oscillator and a device connected to the crystal oscillator is smaller than a first distance threshold, and a distance between each crystal oscillator and other active devices on the circuit board is larger than a second distance threshold.
Optionally, the central gateway further includes: the casing, the circuit board and integrated device on the circuit board all set up in the casing, the casing be used for with the bonding of vehicle is connected.
Optionally, the central gateway further includes: a power supply component integrated on the circuit board;
the power supply assembly is connected to the controller, each of the ethernet transceivers, and each of the controller area network transceivers, respectively.
In another aspect, there is provided a control system of a vehicle, the control system including: a plurality of electronic control units and a central gateway as described in the above aspects;
each electronic control unit is connected with one interface of the central gateway through a twisted pair.
Optionally, the twist lay of the twisted pair is less than or equal to 2.5 cm.
In yet another aspect, a vehicle is provided, the vehicle comprising: a control system as in the preceding aspect. The method comprises the following steps:
the technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the embodiment of the invention provides a vehicle, a central gateway and a control system thereof, wherein the central gateway can comprise: the controller comprises a circuit board, at least one Ethernet transceiver, at least one controller area network transceiver, a plurality of crystal oscillators, a controller, at least one first interface corresponding to the Ethernet transceiver and at least one second interface corresponding to the controller area network transceiver, wherein the at least one Ethernet transceiver, the at least one controller area network transceiver, the plurality of crystal oscillators and the controller are integrated on the circuit board. Each Ethernet transceiver is respectively connected with the controller, a crystal oscillator and a first interface, the controller is connected with the crystal oscillator, each controller area network transceiver is respectively connected with the controller and a second interface, and each transceiver can transmit signals between the controller and the interfaces. And the stratum of the circuit board is provided with a hollowed area, and the orthographic projection of each crystal oscillator on the stratum is positioned in the hollowed area. Therefore, each crystal oscillator can be effectively isolated from the stratum in the circuit board, parasitic capacitance generated between the crystal oscillator and the stratum is avoided, and interference on data transmission can be reduced. Meanwhile, the circuit board is of a laminated structure, so that electromagnetic interference radiation in signal transmission can be effectively inhibited, and the anti-interference capability and the data transmission accuracy of the central gateway are effectively improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a central gateway of a vehicle according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another vehicle central gateway provided by an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a control system of a vehicle according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another vehicle control system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Currently, a plurality of modules such as an Automatic Driving Control Unit (ADCU), a Body Control Module (BCM), a chassis module, a meter module, an entertainment module, and an On-Board Diagnostic module (OBD) may be provided inside a vehicle. These modules may each be connected to the CGW via a Controller Area Network (CAN) bus or an ethernet bus. The CGW is used as a central node for the internal communication of the whole vehicle, and the mutual communication of all modules in the vehicle can be realized. Wherein, the CAN bus CAN include: low-speed CAN bus, high-speed CAN bus, CANFD bus. The Ethernet bus comprises: gigabit ethernet bus, and the like.
The CGW supports a multi-channel and multi-bus data transmission mode, can realize cross-region function integration, basic routing communication and protocol translation, extraction, integration and safe deployment of in-vehicle data, can provide diagnosis communication service and internet service, and enables mutual service of vehicles to be realized. In addition, in terms of vehicle communication security, the CGW may also provide the user with a comprehensive security solution, hardware security module, key management, upgradeable services, software and hardware solutions, and optional communication protocol configuration. Meanwhile, the CGW also has advanced security protection functions (such as a waterproof wall, digital security key storage and data packet inspection), can ensure high-performance communication among all modules, and can perform security authentication on the communication so as to reduce the threat of malicious attack.
However, as the number of modules in a vehicle is increased, the application of high-power devices in the modules and the data transmission rate between the modules are increased, the interference between data is large when the modules perform data interaction through the CGW, and thus the security of the CGW for transmitting data is low.
The embodiment of the invention provides a central gateway of a vehicle, which can solve the problems of low safety and low accuracy of CGW data transmission in the related technology. As shown in fig. 1, the central gateway may include: the circuit board 01, at least one ethernet transceiver 02, at least one CAN transceiver 03, a plurality of crystal oscillators 04, a controller 05, at least one first interface 06 corresponding to the at least one ethernet transceiver 02 one to one, and at least one second interface 07 corresponding to the at least one CAN transceiver 03 one to one, which are integrated on the circuit board 01.
Each ethernet transceiver 02 is connected to the controller 05, a crystal oscillator 04 and a corresponding first interface 06, the controller 05 is connected to the crystal oscillator 04, and each ethernet transceiver 02 is configured to transmit signals between the controller 05 and the first interface 06 under the control of a clock signal provided by the crystal oscillator 04. For example, the frequency of the crystal 04 connected to the controller 05 may be 8 megahertz (MHz), and the frequency of the crystal 04 connected to the ethernet transceiver 02 may be greater than or equal to 25 MHz.
Each CAN transceiver 03 is connected to the controller 05 and a corresponding second interface 07, respectively, for transmitting signals between the controller 05 and the second interface 07.
The circuit board 01 may be a laminate structure including a ground layer. The formation has a hollowed area (i.e., a partial area of the formation is hollowed), and an orthographic projection of each crystal 04 on the formation is located in the hollowed area. Therefore, effective isolation between each crystal oscillator 04 and the stratum in the circuit board 01 can be guaranteed, parasitic capacitance generated between the crystal oscillator 04 and the stratum is avoided, and interference on data transmission can be reduced. The hollowed area may be a rectangular area or a circular area, and the shape of the hollowed area is not limited in the embodiment of the present invention.
In summary, an embodiment of the present invention provides a central gateway for a vehicle, where the central gateway may include: the controller comprises a circuit board, at least one Ethernet transceiver, at least one controller area network transceiver, a plurality of crystal oscillators, a controller, at least one first interface corresponding to the Ethernet transceiver and at least one second interface corresponding to the controller area network transceiver, wherein the at least one Ethernet transceiver, the at least one controller area network transceiver, the plurality of crystal oscillators and the controller are integrated on the circuit board. Each Ethernet transceiver is respectively connected with the controller, a crystal oscillator and a first interface, the controller is connected with the crystal oscillator, each controller area network transceiver is respectively connected with the controller and a second interface, and each transceiver can transmit signals between the controller and the interfaces. And the stratum of the circuit board is provided with a hollowed area, and the orthographic projection of each crystal oscillator on the stratum is positioned in the hollowed area. Therefore, each crystal oscillator can be effectively isolated from the stratum in the circuit board, parasitic capacitance generated between the crystal oscillator and the stratum is avoided, and interference on data transmission can be reduced. Meanwhile, the circuit board is of a laminated structure, so that electromagnetic interference radiation in signal transmission can be effectively inhibited, and the anti-interference capability and the data transmission accuracy of the central gateway are effectively improved.
In the embodiment of the present invention, the circuit board 01 may be a Printed Circuit Board (PCB), which is also called a PCB. The controller 05 may be a Micro Controller Unit (MCU). The first interface 06 may be an ethernet interface, for example, an RJ45 interface, or may be a High Speed Data (HSD) interface. The second interface 07 may be a DB9 interface, for example, a DB9F interface. Each of the plurality of interfaces may be connected to an ECU of the vehicle, each ECU may transmit data to a transceiver through the interface, the transceiver may transmit the data to the controller, and the controller may transmit the data to another ECU in the vehicle through another transceiver and another interface, so that data interaction between the plurality of ECUs may be achieved.
As shown in fig. 1, the circuit board 01 may have 3 CAN transceivers 03 and 3 ethernet transceivers 02 integrated thereon. Wherein, the model of the 3 CAN transceivers may be the same, and the model of the 3 ethernet transceivers 02 may be the same.
The manner in which data is transmitted between each ECU in the vehicle and the CGW may vary. According to different data transmission modes, each ECU can be connected with the CGW through different interfaces. For example, if the ECU and the CGW are data-transmitted through the ethernet, the ECU may be connected to the first interface 06 of the CGW. If the ECU and the CGW are data-transmitting via a CAN bus, the ECU may be connected to the second interface 07 of the CGW.
In the embodiment of the present invention, when data is transmitted between the interface, the transceiver, and the controller 05, the transmission rate is high, and crosstalk may exist in the data transmission process. Therefore, in the at least one ethernet transceiver 02 and the at least one CAN transceiver 03, each transceiver may be connected to the controller 05 through a differential line, and each transceiver may be connected to a corresponding interface through a differential line. The differential line may be a serpentine line, and the differential line may include two parallel signal transmission lines of equal length.
Each transceiver is connected with the controller 05 and the corresponding interface through a differential wire, so that crosstalk in the data transmission process can be effectively reduced, and the anti-interference capability of the CGW is improved. Due to the delay of data transmission on the circuit board 01, when each transceiver and the controller 05 receive or transmit data, the timings of the data signals transmitted by the two signal transmission lines in the differential line are not consistent, so that the accuracy of receiving or transmitting data by each transceiver and the controller 05 is low. By setting the differential line as a serpentine line, when each transceiver and the controller 05 receive or transmit data, the timings of the data signals transmitted by the two signal transmission lines in the differential line can be kept consistent, so that the accuracy of receiving or transmitting data by the controller 05 and the transceiver can be improved.
Optionally, a via hole may be disposed on the circuit board 01, and the differential line located on a certain layer may be routed on another layer through the via hole. It should be noted that as few vias as possible should be disposed on the circuit board 01 to reduce the parasitic capacitance and parasitic inductance generated by the differential line.
Fig. 2 is a schematic structural diagram of another vehicle central gateway according to an embodiment of the present invention. Referring to fig. 2, the CGW may further include: a plurality of common mode chokes 08 integrated on the circuit board 01. Each ethernet transceiver 02 can be connected to a corresponding first interface 06 via a common-mode choke 08. Each CAN transceiver 03 CAN be connected to a corresponding second interface 07 via a common-mode choke 08. By way of example, the common mode choke may be a ferrite magnetic common mode choke.
The common mode choke 08 is two coils wound on the same core, and the two coils have the same number of turns, the same phase, and opposite winding directions. When data is transmitted between the interface and the transceiver, a common-mode signal and a differential-mode signal in the data are transmitted through the common-mode choke 08 at the same time, the common-mode signal generates common-mode interference in two coils of the common-mode choke, the common-mode interference has the same intensity but opposite directions, and therefore the common-mode interference can be cancelled, the common-mode choke 08 can suppress the common-mode signal, and the differential-mode signal passes through, so that the common-mode interference generated on the circuit board 01 during data transmission can be reduced, and the accuracy of data transmission can be improved. The common mode choke coil is small in size, simple in structure and low in cost.
Optionally, the CGW may further include: and a crystal oscillator housing (not shown) arranged outside each crystal oscillator 04, wherein the crystal oscillator housing can be connected with the ground layer of the circuit board 01 to improve the anti-interference capability of the crystal oscillator 04. For example, the outer shell of the crystal oscillator 04 may be made of a metal material, for example, a copper-tin alloy.
In the embodiment of the present invention, each device integrated on the circuit board 01 may be soldered on the circuit board 01. The pitch of the devices to which each crystal 04 is connected may be smaller than the first pitch threshold, i.e., the pitch between the devices to which each crystal 04 is connected should be as small as possible. Meanwhile, it is required to ensure that pins of the device and pins of the crystal oscillator 04 correspondingly connected with the device are not shielded from each other in the process of welding the crystal oscillator 04 and the device connected with the crystal oscillator on the circuit board 01.
Each crystal oscillator 04 needs to be far away from other active devices on the circuit board 01, and the distance between each crystal oscillator 04 and the other active devices may be larger than the second distance threshold, so as to prevent the crystal oscillator 04 from interfering with the active devices, thereby affecting the normal operation of the active devices. The other active devices may refer to active devices on the circuit board except for the device connected to the crystal oscillator 04. By way of example, the second spacing threshold may be 5 millimeters (mm).
Alternatively, the circuit board 01 may include a wiring inhibiting layer, and each crystal 04 may be disposed in the area where the wiring inhibiting layer is located.
Referring to fig. 2, the CGW may further include: a power supply component 09 integrated on the circuit board 01. The power supply component 09 is connected to the controller 05, each ethernet transceiver 02 and each CAN transceiver 03 on the circuit board 01, and CAN supply power to the controller 05, each ethernet transceiver 02 and each CAN transceiver 03, so as to ensure that the controller 05, each ethernet transceiver 02 and each CAN transceiver 03 CAN operate.
For example, a power interface is provided on the CGW, and the power supply assembly 09 may be connected to the power supply through the power interface. The power supply may be a battery provided independently of the CGW.
In an embodiment of the present invention, the CGW may further include: a housing (not shown). The circuit board 01 and the components integrated on the circuit board 01 can be disposed in the housing, which is used for bonding connection with the vehicle. For example, the housing may be made of a metal material.
In the embodiment of the present invention, since the housing is provided and has a shielding function, electromagnetic interference (EMI) of the CGW to the outside during data transmission can be reduced, and electromagnetic interference (EMS) of the CGW can be improved, wherein the EMS may refer to an ability of the CGW to resist the external electromagnetic interference. In addition, the area of the ground of the vehicle is large, and the housing is connected with the ground, so that the heat dissipation rate of the CGW can be improved.
In summary, an embodiment of the present invention provides a central gateway for a vehicle, where the central gateway may include: the controller comprises a circuit board, at least one Ethernet transceiver, at least one controller area network transceiver, a plurality of crystal oscillators, a controller, at least one first interface corresponding to the Ethernet transceiver and at least one second interface corresponding to the controller area network transceiver, wherein the at least one Ethernet transceiver, the at least one controller area network transceiver, the plurality of crystal oscillators and the controller are integrated on the circuit board. Each Ethernet transceiver is respectively connected with the controller, a crystal oscillator and a first interface, the controller is connected with the crystal oscillator, each controller area network transceiver is respectively connected with the controller and a second interface, and each transceiver can transmit signals between the controller and the interfaces. And the stratum of the circuit board is provided with a hollowed area, and the orthographic projection of each crystal oscillator on the stratum is positioned in the hollowed area. Therefore, each crystal oscillator can be effectively isolated from the stratum in the circuit board, parasitic capacitance generated between the crystal oscillator and the stratum is avoided, and interference on data transmission can be reduced. Meanwhile, the circuit board is of a laminated structure, so that electromagnetic interference radiation in signal transmission can be effectively inhibited, and the anti-interference capability and the data transmission accuracy of the central gateway are effectively improved.
Fig. 3 is a schematic structural diagram of a control system of a vehicle according to an embodiment of the present invention. Referring to fig. 3, the control system may include: a plurality of ECUs 10 and a CGW 00 as shown in fig. 1 or 2.
Each ECU 10 may be connected to an interface of the CGW 00 via twisted pair 11 and may send data to the controller 05 of the CGW 00 via the interface.
In the embodiment of the present invention, the twisted pair 11 can be tightly wound in the counterclockwise direction, and the lay length of the twisted pair 11 can be less than or equal to 2.5 centimeters (cm), so that the attenuation ratio of the twisted pair 11 can be ensured to be 141:1, and the interference resistance of the control system is effectively improved.
Fig. 4 is a schematic structural diagram of another vehicle control system according to an embodiment of the present invention. As shown in fig. 4, each ECU 10 may include an interface 12 and a transceiver 13, and the interface 12 and the transceiver 13 may be connected through a common mode choke, and the interface 12 of the ECU 10 is connected with an interface of the CGW 00. If the ECU transmits data to the CGW 00 via ethernet, the interface 12 of the ECU 10 may be an ethernet interface, such as an RJ45 interface, and the interface 12 may be connected to the first interface 06 of the CGW 00. If data is transmitted between an ECU 10 and the CGW 00 via the CAN bus, the interface of the ECU 10 may be a DB9 interface, for example, a DB9F interface, and the interface of the ECU 10 may be connected to the second interface 07 of the CGW 00.
An embodiment of the present invention further provides a vehicle, which may include: such as the control system shown in fig. 3. Wherein the vehicle may be a smart vehicle. The intelligent vehicle is also called a wheeled mobile robot, and intelligent driving is realized mainly by means of an intelligent driving controller in the vehicle.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A central gateway for a vehicle, the central gateway comprising: the system comprises a circuit board, at least one Ethernet transceiver, at least one controller area network transceiver, a plurality of crystal oscillators, a controller, at least one first interface and at least one second interface, wherein the at least one Ethernet transceiver, the at least one controller area network transceiver, the plurality of crystal oscillators, the controller, the at least one first interface and the at least one second interface are integrated on the circuit board;
each ethernet transceiver is respectively connected with the controller, one crystal oscillator and a corresponding first interface, the controller is connected with one crystal oscillator, and each ethernet transceiver is used for transmitting signals between the controller and the first interface under the control of a clock signal provided by the crystal oscillator;
each controller local area network transceiver is respectively connected with the controller and a corresponding second interface and is used for transmitting signals between the controller and the second interface;
the circuit board is of a laminated structure, the laminated structure comprises a stratum, each stratum is provided with a hollowed area, and the orthographic projection of each crystal oscillator on each stratum is located in each hollowed area;
each of the first interface and the second interface is used for being connected with an electronic control unit, and the controller is used for transmitting data transmitted to the controller by one electronic control unit through one interface to the other electronic control unit through the other interface.
2. The central gateway of claim 1,
in the at least one Ethernet transceiver and the at least one controller local area network transceiver, each transceiver is connected with the controller through a differential line, each transceiver is connected with a corresponding interface through a differential line, and the differential line is a serpentine line.
3. The central gateway of claim 1, further comprising: a plurality of common mode chokes integrated on the circuit board;
each Ethernet transceiver is connected with a corresponding first interface through one common mode choke coil;
each controller area network transceiver is connected with a corresponding one of the second interfaces through one of the common mode chokes.
4. The central gateway according to any of claims 1 to 3, characterized in that it further comprises: and the crystal oscillator shell is arranged on the outer side of each crystal oscillator and is connected with the ground layer of the circuit board.
5. The central gateway of any one of claims 1 to 3, wherein each of the oscillators is spaced from devices connected thereto by a distance less than a first spacing threshold, and is spaced from other active devices on the circuit board by a distance greater than a second spacing threshold.
6. The central gateway according to any of claims 1 to 3, characterized in that it further comprises: the casing, the circuit board and integrated device on the circuit board all set up in the casing, the casing be used for with the bonding of vehicle is connected.
7. The central gateway according to any of claims 1 to 3, characterized in that it further comprises: a power supply component integrated on the circuit board;
the power supply assembly is connected to the controller, each of the ethernet transceivers, and each of the controller area network transceivers, respectively.
8. The central gateway of claim 1, wherein the circuit board comprises a wiring inhibited layer, and each of the crystal oscillators is disposed in an area where the wiring inhibited layer is located.
9. A control system of a vehicle, characterized by comprising: a plurality of electronic control units and a central gateway as claimed in any one of claims 1 to 8;
each electronic control unit is connected with one interface of the central gateway through a twisted pair.
10. The control system of claim 9, wherein the twisted pair has a lay length of less than or equal to 2.5 centimeters.
11. A vehicle, characterized in that the vehicle comprises: a control system as claimed in claim 9 or 10.
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| CN201811450995.6A CN109347732B (en) | 2018-11-30 | 2018-11-30 | Vehicle and central gateway and control system thereof |
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| CN201811450995.6A CN109347732B (en) | 2018-11-30 | 2018-11-30 | Vehicle and central gateway and control system thereof |
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| CN112977091A (en) * | 2021-03-18 | 2021-06-18 | 奇瑞新能源汽车股份有限公司 | Whole-vehicle-area control module and control method of electric vehicle and vehicle |
| CN114501796B (en) * | 2022-01-12 | 2024-05-03 | 中国第一汽车股份有限公司 | Vehicle-mounted gateway printed circuit board |
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| JP2004122993A (en) * | 2002-10-03 | 2004-04-22 | Sumitomo Electric Ind Ltd | Onboard equipment connection system |
| US8774262B2 (en) * | 2005-01-04 | 2014-07-08 | Vitesse Semiconductor Corporation | Adaptive equalization with group delay |
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