CN211454318U - Vehicle body domain controller and system - Google Patents
Vehicle body domain controller and system Download PDFInfo
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- CN211454318U CN211454318U CN202020440689.0U CN202020440689U CN211454318U CN 211454318 U CN211454318 U CN 211454318U CN 202020440689 U CN202020440689 U CN 202020440689U CN 211454318 U CN211454318 U CN 211454318U
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Abstract
The utility model discloses a car body domain controller and system, the domain controller includes first the control unit, the second the control unit, the voltage regulation unit, mutual unit, video module and ethernet module, the voltage regulation unit is connected with first the control unit and second the control unit electricity respectively, a working voltage for being first the control unit and second the control unit with external power source's voltage regulation, mutual unit is connected with first the control unit electricity, first the control unit passes through mutual unit and gathers external sensor's data and sends drive signal to outside execution unit, video module is connected with the second the control unit electricity, a driver's information is used for gathering, first the control unit passes through SPI, CAN and ethernet module and second the control unit communication connection, the ethernet module is used for providing packing data interaction path. The utility model provides a domain controller is convenient for expand, is favorable to the platform ization, the intellectuality of whole car.
Description
Technical Field
The embodiment of the utility model provides a relate to vehicle control technique, especially relate to an automobile body territory controller and system.
Background
The body controller is mainly used for enhancing the safety, comfort and convenience of the automobile in the whole electronic system. With the development of automotive electronics, the functions of the automobile are continuously expanded and increased, and in addition to the basic functions of traditional light control, wiper (washing) control, door and window seats and the like, the functions of automatic wiper, engine theft prevention, tire pressure monitoring, keyless starting and the like are gradually realized in recent years.
In the prior art, one vehicle body controller mostly only corresponds to one or a small number of functions, and with the gradual increase of vehicle functions realized by electronic technology, the vehicle controllers need to communicate with each other to realize cooperative control of vehicles, for example, under some driving conditions, information such as a camera, millimeter radar waves, laser radars, a GPS, wheel speed data and the like needs to be fused to obtain a better vehicle control output signal, if a vehicle control network is constructed by adopting the traditional vehicle body controller, a large number of vehicle body controllers are needed, so that the complexity of an electronic control system of the vehicle is rapidly improved, and meanwhile, as the vehicle functions are dispersed in different vehicle body controllers, rapid development and iteration of software are difficult to realize.
Therefore, a vehicle body domain controller is urgently needed, which can integrate several functional domains of a whole vehicle, so that interaction between different domain controllers is facilitated, a large amount of information is prevented from interacting through a bus, and software development and iteration are easy to perform.
SUMMERY OF THE UTILITY MODEL
The utility model provides a car body area controller and system to reach and to conveniently extend external sensor and executor, avoid a large amount of information to pass through the bus interaction, thereby easily realize the iteration of software and adapt to different development demands, improve whole car electric, intelligent purpose.
In a first aspect, an embodiment of the present invention provides a vehicle body area controller, including a first control unit, a second control unit, a voltage regulation unit, an interaction unit, a video module and an ethernet module, where the voltage regulation unit is electrically connected to the first control unit and the second control unit respectively, and is used for connecting an external power source through a power interface, regulating the voltage of the external power source to be the working voltage of the first control unit and the second control unit, the interaction unit is electrically connected to the first control unit, the first control unit collects data of an external sensor through the interaction unit and sends a driving signal to an external execution unit, the video module is electrically connected to the second control unit, and is used for collecting driver information, the first control unit is communicatively connected to the second control unit through SPI, a CAN and the ethernet module, the Ethernet module is used for providing a packed data interaction path.
Further, the first control unit adopts a Micro Control Unit (MCU).
Further, the second control unit comprises a microprocessor MPU and a memory, and the memory is electrically connected with the microprocessor MPU.
Further, the voltage regulation unit includes first voltage regulation module and second voltage regulation module, the input of first voltage regulation module with power source interface electricity links, the output of first voltage regulation module with first the control unit electricity is connected, the input of second voltage regulation module with power source interface electricity links, the output of second voltage regulation module with the second the control unit electricity is connected.
Further, the first voltage regulation module adopts a base chip SBC, and the second voltage regulation module adopts a power management chip PMIC.
Furthermore, the interaction unit comprises a high/low side driving module, an interaction module and an analog quantity acquisition module, the high/low side driving module is electrically connected with the first control unit, the first control unit sends a driving signal to the external execution unit through the high/low side driving module, the interaction module is electrically connected with the first control unit, the first control unit carries out information interaction with the external execution unit through the interaction module, the analog quantity acquisition module is electrically connected with the first control unit, and the first control unit acquires the information of the external sensor through the analog quantity acquisition module.
Further, the interaction module comprises a CAN/LIN transceiver and a low-frequency antenna.
Further, the high/low side driving module and the low frequency antenna are respectively in communication connection with the first control unit through an SPI port.
In a second aspect, the embodiment of the present invention provides a vehicle body domain control system, including at least one the embodiment of the present invention provides an arbitrary vehicle body domain controller, which is connected through the vehicle-mounted ethernet communication between the vehicle body domain controllers.
The vehicle body domain controller is in communication connection with the vehicle-mounted T-Box through a vehicle-mounted Ethernet, the T-Box is in communication connection with a cloud server, and the vehicle body domain controller performs information interaction with the cloud server through the vehicle-mounted T-Box.
Compared with the prior art, the utility model provides an automobile body domain controller's beneficial effect lies in:
1. the first control unit and the second control unit are arranged, wherein the first control unit is configured to realize logic control of hardware equipment, and the second control unit is configured to realize interactive communication with an external controller, so that loose coupling between hardware and software of the vehicle body controller is realized, and design and iteration of the software for the vehicle body area controller are facilitated.
2. The first control unit and the second control unit communicate through the Ethernet module, and the second control unit and the external controller interact through the Ethernet module, so that the vehicle body area controller can fully utilize the communication capacity of the Ethernet to carry out data interaction, and the transmission of long messages and point-to-point communication are efficiently realized.
3. The body area controller is also provided with a video module, so that driver information can be collected and analyzed, and the intelligent level of the body area controller is improved.
Drawings
FIG. 1 is a block diagram of a body area controller according to a first embodiment;
FIG. 2 is a block diagram of another body area controller according to the first embodiment;
FIG. 3 is a block diagram of a body area controller according to another embodiment;
FIG. 4 is a structural view of a body area control system according to a second embodiment;
fig. 5 is a structural diagram of another body area control system in the second embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a structural diagram of a body area controller in a first embodiment, and referring to fig. 1, the body area controller includes a first control unit 1, a second control unit 2, a voltage regulating unit 3, an interaction unit 4, a video module 5, and an ethernet module 6.
The voltage adjusting unit 3 is electrically connected to the first control unit 1 and the second control unit 2, and is configured to be connected to an external power source through a power interface 7, so as to adjust the voltage of the external power source to the working voltage of the first control unit 1 and the second control unit 2. The interaction unit 4 is electrically connected with the first control unit 1, and the first control unit 1 collects data of an external sensor through the interaction unit 4 and sends a driving signal to an external execution unit. The video module 5 is electrically connected with the second control unit 2 and used for collecting driver information. The first control unit 1 is in communication connection with the second control unit 2 through the SPI, the CAN and the Ethernet module 6, and the Ethernet module 6 is used for providing a packed data interaction path.
The body area controller shown in fig. 1 is provided with a first control unit 1 and a second control unit 2, wherein the first control unit 1 is configured as a logic control unit and is mainly used for generating a logic control instruction for controlling an external execution unit through received sensor data, or generating a logic control instruction for controlling an external execution unit by calling a service packaged by other body controllers, wherein the service refers to a readable and writable software component or data packet. The second control unit 2 is configured as a data processing unit, and is mainly used for encapsulating received sensor data into a service or encapsulating acquired sensor data into a service after analyzing and processing the sensor data, and the second control unit 2 also provides service interfaces for other vehicle body controllers, and is used for sending and receiving the service. For example, the first control unit 1 may be configured as an execution Platform based on a Classic Platform AUTOSAR, the second control unit 2 may be configured as an execution Platform based on an Adaptive Platform AUTOSAR, the second control unit 2 implements encapsulation of services through the Adaptive Platform AUTOSAR, and the first control unit 1 and the second control unit 2 implement interaction of services through the SOME/IP protocol. Wherein, Classicplatform AUTOSAR, Adaptive platformmAUUTOSAR and SOME/IP are all prior art, and the specific implementation process and working principle are not repeated.
Referring to fig. 1, the first control unit 1 and the second control unit 2 are communicatively connected through an ethernet module 6, specifically, through an RGMII interface, and the ethernet module 6 is mainly used to provide service-oriented channels between the first control unit 1 and the second control unit 2 and between the second control unit 2 and other body controllers. Illustratively, the service interaction process includes:
the first control unit 1 collects information sent by the vehicle sensor through the interaction unit 4, the information is sent to the second control unit 2 through the Ethernet module 6, the second control unit 2 packages the information into service, and the service is sent to other vehicle body controllers through the Ethernet module 6.
The second control unit 2 receives the service through the ethernet module 6, and issues the service to the first control unit 1 through the ethernet module 6, the first control unit 1 analyzes the service and generates a logic control instruction based on the service, and the first control unit 1 sends the logic control instruction to an external execution unit through the interaction unit 4.
The second control unit 2 acquires image information of the driver through the video module 5, analyzes behavior, psychological and physiological characteristics of the driver by using the image processing application configured in the second control unit 2, packages the characteristics into a service, and sends the service to other vehicle body controllers through the ethernet module 6, wherein the image processing application configured in the second control unit 2 is the prior art, and is not described herein again. Illustratively, the video module 5 is a chip with a model number of MAXIM max9286, and the video module 5 is electrically connected to the second control unit 2 through an MIPI interface.
In the body area controller shown in fig. 1, a first control unit 1 directly interacts with sensors and execution units on a vehicle through an interaction unit 4, and logic control of hardware devices is realized through static software configuration. The second control unit 2 directly interacts with other vehicle body controllers of the vehicle body through the Ethernet module 6, and the second control unit 2 is mainly used for service encapsulation and interaction, so that a software interface for realizing required functions can be dynamically configured in the second control unit 2, loose coupling between hardware and software is realized, and software design and iteration are convenient for a vehicle body domain controller. The first control unit 1 and the second control unit 2 realize information interaction through the Ethernet module 6, and realize vehicle body domain control through the first control unit 1 and the interaction unit 4, the second control unit 2 realizes information interaction with other vehicle body controllers through the Ethernet module 6, and the second control unit 2 can adopt a service-oriented system architecture, so that the vehicle body domain controller and the other vehicle body controllers can fully utilize the communication capability of the Ethernet to carry out data interaction, and the transmission of long messages and point-to-point communication can be efficiently realized. The body area controller shown in fig. 1 is also provided with a video module 5, and the corresponding second control unit 2 is provided with an image processing application, so that the intelligent level of the body area controller is improved.
Fig. 2 is a structural diagram of another body area controller in the first embodiment, and referring to fig. 2, the first control unit 1 adopts a micro control unit MCU. The second control unit 2 includes a microprocessor MPU21 and a memory 22, and the memory 22 is electrically connected to the microprocessor MPU 21.
On the basis of the vehicle body area controller shown in fig. 1, according to the difference of specific functions realized by the first control unit 1 and the second control unit 2, the MCU chip with lower operation performance is selected as the core processing component in the first control unit 1, and the MPU chip with higher operation performance is selected as the core processing component in the second control unit 2, so that the vehicle body area controller reasonably considers the practicability, the calculation performance and the communication performance. Alternatively, the first control unit 1 may use an MPU chip or an SOC chip having higher arithmetic performance as the core processing section. Optionally, according to different functions implemented by the body area controller, the first control unit 1 may be provided with a plurality of micro control units MCU, and the second control unit 2 may be provided with a plurality of microprocessors MPU 21. Illustratively, the micro control unit MCU is an Infineon TC397 chip, the microprocessor MPU21 is an NXP i.mx8 chip, the memory 22 attached to the microprocessor MPU21 includes LPDDR4 and eMMC, and the memory 22 is used for storing software executed by the microprocessor MPU21 and storing data generated by the microprocessor MPU 21.
Referring to fig. 2, preferably, the voltage regulating unit 3 includes a first voltage regulating module 31 and a second voltage regulating module 32, an input end of the first voltage regulating module 31 is electrically connected to the power interface 7, and an output end of the first voltage regulating module 31 is electrically connected to the first control unit 1. The input end of the second voltage regulating module 32 is electrically connected to the power interface 7, and the output end of the second voltage regulating module 32 is electrically connected to the second control unit 2.
The vehicle body area controller shown in fig. 2 adopts two voltage regulation modules to respectively supply power to the first control unit 1 and the second control unit 2, so that the problem that the first control unit 1 and the second control unit 2 stop working simultaneously due to failure of the voltage regulation modules possibly caused by the adoption of a single voltage regulation module is avoided, if one of the voltage regulation modules fails, at least one control unit can be ensured to work continuously, and the vehicle body area controller can keep a basic control function by means of redundancy backup in the control units. Illustratively, the first voltage regulating module 31 employs a System Basic Chip (SBC), the model of the chip is NXP FS6522, and the SBC is electrically connected to the first control unit 1 through the SPI. The second voltage regulating module 32 is a Power Management chip (PMIC) with a model number of nxpmic 8100, and the PMIC is electrically connected to the second control unit 2 through I2C. The SBC and the PMIC are provided with the watchdog, and the SBC and the PMIC are selected as the voltage regulating module, so that the software configured in the first control unit 1 and the second control unit 2 can be monitored while the working voltage is provided.
Referring to fig. 2, the interactive unit 4 includes a high/low side driving module 41, an interactive module 42, and an analog quantity collecting module 43, the high/low side driving module 41 is electrically connected to the first control unit 1 (a micro control unit MCU), and the first control unit 1 sends a driving signal to an external execution unit through the high/low side driving module 41. The interaction module 42 is electrically connected to the first control unit 1, and the first control unit 1 performs information interaction with an external execution unit through the interaction module 42, for example, performs information interaction with an air conditioner execution unit, a vehicle window execution unit, and the like. The analog quantity acquisition module 43 is electrically connected with the first control unit 1, and the first control unit 1 acquires information of an external sensor through the analog quantity acquisition module 43, for example, acquires measurement information of devices such as an ABS sensor and a vehicle body suspension sensor.
Illustratively, the model of the high/low side driving module 41 is EVAL-L9301, and the model of the analog quantity acquisition module 43 is MCP 3208. The high/low side driving module 41 and the interactive module 42 are controlled by the first control unit 1 and are responsible for outputting driving signals to an external execution unit in a vehicle body area so as to realize a vehicle body area control function. The first control unit 1 also calls the output function of the external execution unit through the interaction module 42 to realize the collection of the data output by the external execution unit. Optionally, in order to save the IO interface of the first control unit 1, the high/low side driving module 41 and the analog quantity collecting module 43 are electrically connected to the first control unit 1 through the SPI.
Fig. 3 is a structural diagram of a body area controller according to still another embodiment, and referring to fig. 3, an interaction module includes a CAN/LIN transceiver 421 and a low frequency antenna 422.
Illustratively, the low-frequency antenna 422 is of a model number NXP NJJ29C0B, and the low-frequency antenna 422 is communicatively connected to the first control unit 1 through an SPI port. The first control unit 1 calls an output function of the external execution unit through the CAN/LIN transceiver 421, and outputs a drive signal to the external execution unit in the vehicle body domain through the CAN/LIN transceiver 421. Specifically, the low-frequency antenna 422 is used for acquiring an external radio frequency signal, for example, the low-frequency antenna 422 can acquire a radio frequency signal transmitted by a car key, so that the car body area controller has the functions of keyless starting and welcoming.
Example two
Fig. 4 is a structural diagram of a vehicle body area control system in a second embodiment, and referring to fig. 4, the vehicle body area control system includes at least one vehicle body area controller shown in fig. 1, fig. 2 or fig. 3 in the first embodiment, and the vehicle body area controllers (100, 101 … n) are in communication connection with each other through a vehicle-mounted ethernet 200.
Specifically, all the body area controllers used in the domain control system may be the body area controllers described in the first embodiment, or some of the body area controllers described in the first embodiment may be used, for example, each body area controller may be in communication connection with the central gateway based on the 100BASE-T1 standard, and information interaction and system control are realized through the central gateway.
Fig. 5 is a structural diagram of another body area control system in the second embodiment, and referring to fig. 5, the body area control system further includes a vehicle-mounted T-Box300, and the body area controller 100 is communicatively connected to the vehicle-mounted T-Box300 through the vehicle-mounted ethernet network 200.
Specifically, the vehicle body area controller 100 adopts the vehicle body area controller described in the first embodiment, the vehicle body area controller 100 can be in communication connection with the cloud terminal through the vehicle-mounted T-Box300, and the vehicle body area controller 100 can send the packaged service to the cloud terminal through the ethernet module and the vehicle-mounted T-Box300 and can also receive the service sent by the cloud terminal. For example, the vehicle body area control system provided by this embodiment can operate the closing of the vehicle window through the mobile phone APP, at this time, the vehicle-mounted T-Box300 receives a window closing instruction sent by the cloud, and sends the instruction to the vehicle body area controller 100 through the ethernet module, the second control unit sends the service to the first control unit after determining the admission condition, the first control unit pushes out the condition determination and generates a logic control instruction, the vehicle window execution unit receives the logic control instruction to complete the window closing action, the first control unit receives the execution result fed back by the vehicle window execution unit, and sends the execution result to the second control unit, and the second control unit packages the execution result into the service and feeds back the service to the cloud through the vehicle-mounted T-Box 300. After receiving the window closing instruction sent by the cloud, the vehicle-mounted T-Box300 can also send the window closing instruction to the central gateway domain controller, and the central gateway domain controller sends the window closing instruction to the vehicle body domain controller 100 through the vehicle-mounted ethernet, and then the vehicle body domain controller 100 executes subsequent steps.
In this embodiment, the body domain controller in the first embodiment is used to construct the body domain control system, so that the electronic and electrical distributed architecture of the entire vehicle is changed into a centralized architecture, the number of electronic control units in the entire vehicle is reduced, and the complexity of the control system is reduced. Meanwhile, as The body domain controller realizes The loose coupling of hardware and software, The OTA (over The air) upgrading of The whole vehicle can be carried out through a second control unit in The body domain controller, The iterative upgrading of a whole vehicle control system can be completed by adding or changing an external sensor hung on The second control unit and designing and iterating The software executed by The second control unit, and The development of different requirements can be easily completed.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (10)
1. A vehicle body area controller is characterized by comprising a first control unit, a second control unit, a voltage regulating unit, an interaction unit, a video module and an Ethernet module,
the voltage adjusting unit is electrically connected with the first control unit and the second control unit respectively and is used for connecting an external power supply through a power interface to adjust the voltage of the external power supply to the working voltage of the first control unit and the second control unit,
the interaction unit is electrically connected with the first control unit, the first control unit collects data of an external sensor through the interaction unit and sends a driving signal to an external execution unit,
the video module is electrically connected with the second control unit and is used for collecting driver information,
the first control unit is in communication connection with the second control unit through the SPI, the CAN and the Ethernet module, and the Ethernet module is used for providing a packed data interaction path.
2. The domain controller of claim 1, wherein the first control unit employs a Micro Control Unit (MCU).
3. The domain controller of claim 1, wherein the second control unit includes a microprocessor MPU and a memory, the memory being electrically connected to the microprocessor MPU.
4. The domain controller of claim 1, wherein the voltage regulation unit includes a first voltage regulation module and a second voltage regulation module,
the input end of the first voltage regulating module is electrically connected with the power interface, the output end of the first voltage regulating module is electrically connected with the first control unit,
the input end of the second voltage regulating module is electrically connected with the power interface, and the output end of the second voltage regulating module is electrically connected with the second control unit.
5. The domain controller of claim 4, wherein the first voltage regulation module employs a base chip (SBC) and the second voltage regulation module employs a power management chip (PMIC).
6. The domain controller of claim 1, wherein the interactive unit includes a high/low side driving module, an interactive module, and an analog quantity collecting module,
the high/low side driving module is electrically connected with the first control unit, the first control unit sends driving signals to the external execution unit through the high/low side driving module,
the interaction module is electrically connected with the first control unit, the first control unit carries out information interaction with the external execution unit through the interaction module,
the analog quantity acquisition module is electrically connected with the first control unit, and the first control unit acquires the information of the external sensor through the analog quantity acquisition module.
7. The domain controller of claim 6, wherein the interaction module comprises a CAN/LIN transceiver and a low frequency antenna.
8. The domain controller of claim 7, wherein the high/low side driver module and the low frequency antenna are each communicatively connected to the first control unit via an SPI port.
9. A vehicle body domain control system comprising at least one vehicle body domain controller of claim 1, wherein the vehicle body domain controllers are communicatively connected to each other via an on-board ethernet.
10. The domain control system of claim 9, further comprising a vehicle-mounted T-Box, wherein the body domain controller is communicatively connected to the vehicle-mounted T-Box through the vehicle-mounted ethernet, the T-Box is communicatively connected to a cloud server, and the body domain controller performs information interaction with the cloud server through the vehicle-mounted T-Box.
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| CN202020440689.0U CN211454318U (en) | 2020-03-31 | 2020-03-31 | Vehicle body domain controller and system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068475A (en) * | 2020-09-21 | 2020-12-11 | 英博超算(南京)科技有限公司 | Vehicle-mounted multi-domain controller |
| CN113364656A (en) * | 2021-04-30 | 2021-09-07 | 中汽研（天津）汽车工程研究院有限公司 | Vehicle-mounted network central domain controller |
| CN114884912A (en) * | 2022-04-12 | 2022-08-09 | 阿尔特汽车技术股份有限公司 | Communication method, system, equipment and computer readable storage medium of SOA architecture |
| CN117369348A (en) * | 2023-12-07 | 2024-01-09 | 中国汽车技术研究中心有限公司 | Central domain controller based on security domain and computing domain |
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2020
- 2020-03-31 CN CN202020440689.0U patent/CN211454318U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068475A (en) * | 2020-09-21 | 2020-12-11 | 英博超算(南京)科技有限公司 | Vehicle-mounted multi-domain controller |
| CN112068475B (en) * | 2020-09-21 | 2021-07-13 | 英博超算(南京)科技有限公司 | Vehicle-mounted multi-domain controller |
| CN113364656A (en) * | 2021-04-30 | 2021-09-07 | 中汽研（天津）汽车工程研究院有限公司 | Vehicle-mounted network central domain controller |
| CN113364656B (en) * | 2021-04-30 | 2022-03-18 | 中汽研（天津）汽车工程研究院有限公司 | Vehicle-mounted network central domain controller |
| CN114884912A (en) * | 2022-04-12 | 2022-08-09 | 阿尔特汽车技术股份有限公司 | Communication method, system, equipment and computer readable storage medium of SOA architecture |
| CN117369348A (en) * | 2023-12-07 | 2024-01-09 | 中国汽车技术研究中心有限公司 | Central domain controller based on security domain and computing domain |
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