Vehicle domain control system and vehicle

Abstract

The invention provides a vehicle domain control system and a vehicle. The vehicle domain control system comprises at least two domain controllers, at least two sensors and at least two actuators. Each sensor comprises a first wireless communication module, and each actuator comprises a second wireless communication module; each domain controller is in communication connection with at least one sensor through a first wireless communication module, the first wireless communication module is used for sending a signal detected by the sensor to the corresponding domain controller, and each domain controller is in communication connection with at least one actuator through a second wireless communication module; the second wireless communication module is used for signal transmission between the actuator and the domain controller; and the domain controllers are in communication connection through a local area network. Therefore, the communication connection among the plurality of actuators, the plurality of sensors and the plurality of domain controllers is realized in a wireless communication mode, the length of each signal transmission wire harness of the whole vehicle and the number of loops are reduced, and the internal arrangement, manufacturing and assembling of the vehicle are facilitated.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a vehicle domain control system and a vehicle. Background Art

[0002] As the level of automobile intelligence increases, the amount of data transmission and usage functions are gradually increasing, and the electronic and electrical architecture of the whole vehicle is gradually developing towards domain centralization. As a result, there are more and more sensors and actuators on the vehicle, which makes the wiring harness circuit branches of the whole vehicle more and more complex. The vehicle domain control system divides the vehicle electronic system into different functional domains, and each domain can operate independently, improving the reliability and stability of the vehicle system, and will not be affected by failures in other domains.

[0003] In the relevant technologies of vehicle domain control systems, various sensors, actuators and domain controllers usually transmit signals through hard wires, which makes the wiring harness length too long and causes redundancy in the vehicle's internal wiring harness, which is not conducive to the internal layout and manufacturing and assembly of the vehicle. Summary of the invention

[0004] In view of the above problems, the embodiments of the present application provide a vehicle domain control system and a vehicle to solve the problem in the related art that the internal wiring harness of the vehicle is redundant, which is not conducive to the internal layout and manufacturing and assembly of the vehicle.

[0005] An embodiment of the present application provides a vehicle domain control system, including at least two domain controllers, at least two sensors, and at least two actuators;

[0006] Each of the sensors includes a first wireless communication module, and each of the actuators includes a second wireless communication module;

[0007] Each of the domain controllers is communicatively connected with at least one of the sensors via the first wireless communication module, and the first wireless communication module is used to send the signal detected by the sensor to the corresponding domain controller; each of the domain controllers is communicatively connected with at least one of the actuators via the second wireless communication module, and the second wireless communication module is used for signal transmission between the actuator and the domain controller;

[0008] At least two of the domain controllers are communicatively connected via a local area network.

[0009] Optionally, at least two of the domain controllers are a first domain controller, a second domain controller and a third domain controller;

[0010] The first domain controller is communicatively connected to the second domain controller via a local area network, the second domain controller is communicatively connected to the third domain controller via a local area network, and one of the three domain controllers is located in the front cabin of the vehicle, one is located in the passenger cabin of the vehicle, and another is located in the luggage compartment of the vehicle.

[0011] Optionally, each of the domain controllers includes a third wireless communication module;

[0012] The third wireless communication module is communicatively connected with the first wireless communication module or the second wireless communication module.

[0013] Optionally, a battery is also included;

[0014] The storage battery is electrically connected to each of the domain controllers to provide power for each of the domain controllers.

[0015] Optionally, a current converter is also included;

[0016] The current converter is electrically connected to the vehicle power supply, the current converter is electrically connected to the battery to supply power to the battery, and the current converter is also electrically connected to at least one of the domain controllers to supply power to the domain controller.

[0017] Optionally, each of the domain controllers is electrically connected to at least one of the sensors and at least one of the actuators to supply power to the sensors and the actuators.

[0018] Optionally, each of the domain controllers includes a local area network communication module;

[0019] The local area network communication modules of different domain controllers are connected for communication via a local area network.

[0020] Optionally, the third wireless communication module is connected to the first wireless communication module or the second wireless communication module in a communication manner including Bluetooth and / or wireless network.

[0021] Optionally, the local area network includes Ethernet and / or a controller area network.

[0022] An embodiment of the present application also provides a vehicle, comprising any of the vehicle domain control systems described above.

[0023] The vehicle domain control system provided by the embodiment of the present application has the following advantages:

[0024] First, both the sensor and the actuator are equipped with wireless communication modules, wherein the first wireless communication module sends various signals detected by the sensor itself to the domain controller to realize the communication connection between the sensor and the domain controller. The second wireless communication module, on the one hand, sends various execution signals of the actuator itself to the domain controller, and on the other hand, receives the control signal sent from the domain controller to realize the communication connection between the actuator and the domain controller. Therefore, the communication connection between multiple actuators, sensors and domain controllers is realized by wireless communication, which reduces the length and number of loops of signal transmission harnesses on various sensors and actuators of the whole vehicle, reduces the redundancy of the internal harnesses of the vehicle, and is beneficial to the internal layout and manufacturing assembly of the vehicle.

[0025] Second, different domain controllers communicate and connect through a local area network, integrating multiple domain controllers together, which has the advantages of high-speed data transmission, resource sharing, and high security.

[0026] Third, the current converter converts the current from the power supply into a smaller current for the domain controller to operate. The battery and the current converter can power the domain controller at the same time, improving the power supply reliability.

[0027] Fourth, the domain controller provides power to the corresponding sensors and actuators to meet their power needs.

[0028] Fifth, domain controllers are arranged in different locations of the vehicle, such as the front cabin, the passenger cabin and the luggage compartment. Sensors and actuators with corresponding functions can be arranged in different locations to meet the personalized functional needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 It is a schematic diagram of vehicle domain control system signal transmission provided by an embodiment of the present application;

[0031] Figure 2 This is a schematic diagram of power supply and distribution connection of a vehicle domain control system provided in an embodiment of the present application;

[0032] Figure 3 is a schematic diagram of a domain controller in an embodiment of the present application;

[0033] Figure 4 is a schematic diagram of a sensor according to an embodiment of the present application;

[0034] Figure 5 It is a schematic diagram of an actuator according to an embodiment of the present application.

[0035] Description of reference numerals:

[0036] 1-domain controller, 1a-first domain controller, 1b-second domain controller, 1c-third domain controller, 11-third wireless communication module, 12-control module, 13-local area network communication module, 2-sensor, 21-first wireless communication module, 22-sensor signal module, 3-actuator, 31-second wireless communication module, 32-actuator function module, 4-battery, 5-current converter. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the vehicle domain control system and the vehicle provided by the present application are further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] Reference Figure 1 , an embodiment of the present application provides a vehicle domain control system, including at least two domain controllers 1, at least two sensors 2 and at least two actuators 3; each of the sensors 2 includes a first wireless communication module 21, and each of the actuators 3 includes a second wireless communication module 31; each of the domain controllers 1 is communicatively connected to at least one of the sensors 2 through the first wireless communication module 21, and the first wireless communication module 21 is used to send the signal detected by the sensor 2 to the corresponding domain controller 1, and each of the domain controllers 1 is communicatively connected to at least one of the actuators 3 through the second wireless communication module 31, and the second wireless communication module 31 is used for signal transmission between the actuator 3 and the domain controller 1; at least two of the domain controllers 1 are communicatively connected via a local area network.

[0039] Specifically, if Figure 1 As shown, the vehicle domain control system provided in the embodiment of the present application includes at least two domain controllers 1, at least two sensors 2 and at least two actuators 3. The domain controller 1 is the main control device of the respective functional domain, and the number is two, three or more, and different domain controllers 1 are located in different functional areas of the vehicle. The domain controller 1 includes a third wireless communication module 11, a control module 12 and a local area network communication module 13, wherein the control module 12 is the main body of the calculation and analysis function of the domain controller. Each domain controller 1 is correspondingly provided with at least one sensor 2 and at least one actuator 3. The sensor 2 collects the vehicle operating parameters in the corresponding function, including but not limited to wheel speed, temperature and humidity in the vehicle, pressure, gas flow, vehicle speed, acceleration, wheel angle, wheel torque, coolant temperature or other parameters, and sends the collected operating parameters to the corresponding domain controller 1, and the control module 12 performs analysis and calculation. Each sensor 2 is provided with at least one first wireless communication module 21, and the first wireless communication module 21 is a wireless short-range communication module, which is a Bluetooth transmission device or a WIFI (Wireless Fidelity) network transceiver. As shown in FIG. Figure 4 As shown, the sensor 2 is also provided with a sensor signal module 22, and the first wireless communication module 21 sends the vehicle operating parameters collected by the sensor signal module 22 to the domain controller 1. That is, the sensor 2 is connected to the corresponding domain controller 1 through the first wireless communication module 21. Each actuator 3 is provided with at least one second wireless communication module 31, which is a Bluetooth transmission device or a WIFI (Wireless Fidelity) network transceiver. Figure 5 As shown, the actuator 3 is also provided with an actuator function module 32, and the functions performed include power control, emission control, temperature control and safety control. The second wireless communication module 31 sends the execution status signal of the actuator function module 32 to the domain controller 1, and the control module 12 performs analysis and calculation. At the same time, the second wireless communication module 31 receives the control signal sent from the domain controller 1. It should be noted that these two working processes do not affect each other and can work independently, or form a feedback adjustment working mode between the actuator 3 and the domain controller 1. That is, the actuator 3 realizes the two-way transmission of signals between the actuator 3 and the domain controller 1 through the second wireless communication module 31.

[0040] Specifically, if Figure 1 As shown, at least two domain controllers 1 are connected to each other through a local area network. When three or more domain controllers 1 are provided, two adjacent domain controllers 1 are connected to each other through a local area network, which can reduce the network configuration cost. The local area network includes Ethernet and / or CAN (Controller Area Network). Among them, when the CAN network is used to connect different domain controllers 1, the CAN network connects multiple nodes without terminal nodes. It is a bus-type communication with a low data error rate, but a slow transmission rate and cannot quickly respond to changes in vehicle dynamic information. When Ethernet is used to connect different domain controllers 1, terminal nodes are set in the Ethernet, which is a switch-type communication with a high data transmission rate and low cost, but poor anti-interference ability and data security and reliability issues. Therefore, in the embodiment, the combination of Ethernet and CAN network is used between different domain controllers 1, which can improve the data transmission rate and security and reliability, and improve the convenience of resource sharing.

[0041] In the vehicle domain control system provided in the embodiment of the present application, both the sensor and the actuator are provided with a wireless communication module. Among them, the first wireless communication module sends various signals detected by the sensor itself to the domain controller to realize the communication connection between the sensor and the domain controller. The second wireless communication module, on the one hand, sends various execution signals of the actuator itself to the domain controller, and on the other hand, receives the control signal sent from the domain controller to realize the communication connection between the actuator and the domain controller. Therefore, the embodiment of the present application realizes the communication connection between multiple actuators, sensors and domain controllers by means of wireless communication, reduces the length of the signal transmission harness and the number of loops on various sensors and actuators of the whole vehicle, reduces the redundancy of the internal harness of the vehicle, and is beneficial to the internal layout and manufacturing and assembly of the vehicle. In addition, the use of a local area network for communication connection between different domain controllers can improve the data transmission rate and security reliability, and meet the requirements of high-speed signal transmission and large bandwidth transmission between domain controllers.

[0042] Optionally, refer to Figure 1 , at least two of the domain controllers 1 are a first domain controller 1a, a second domain controller 1b and a third domain controller 1c; the first domain controller 1a is communicatively connected to the second domain controller 1b via a local area network, the second domain controller 1b is communicatively connected to the third domain controller 1c via a local area network, and one of the three domain controllers 1 is located in the front cabin of the vehicle, one is located in the passenger cabin of the vehicle, and the other is located in the luggage compartment of the vehicle.

[0043] Specifically, if Figure 1 As shown, the embodiment of the present application is provided with three domain controllers 1, namely the first domain controller 1a, the second domain controller 1b and the third domain controller 1c, and the three domain controllers 1 are located in different functional areas of the vehicle. Among them, the first domain controller 1a is located inside the front cabin of the vehicle, also known as the front area controller; the second domain controller 1b is located inside the passenger compartment of the vehicle, also known as the middle area controller; the third domain controller 1c is located in the luggage compartment area of ​​the vehicle or the lower part of the luggage compartment, also known as the rear area controller. The two adjacent domain controllers 1 among the three domain controllers 1 are connected in communication through a local area network, that is, the first domain controller 1a and the second domain controller 1b are connected in communication through a local area network, and the second domain controller 1b and the third domain controller 1c are connected in communication through a local area network. Therefore, the vehicle is arranged with domain controllers 1 with different functions in different positions, and sensors 2 and actuators 3 with corresponding functions can be arranged according to different needs to meet the personalized functional needs.

[0044] Specifically, if Figure 1As shown, in some embodiments, during normal driving of the vehicle, various sensors 2 in the front cabin area of ​​the vehicle send the vehicle operating parameters detected by the sensor signal module 22, including but not limited to the acceleration of the vehicle body or the intake air or charge air temperature, to the first domain controller 1a in real time through the first wireless communication module 21; various sensors 2 in the passenger compartment area of ​​the vehicle send the vehicle operating parameters detected by the sensor signal module 22, including but not limited to the air flow or intake air temperature, to the second domain controller 1b in real time through the first wireless communication module 21; various sensors 2 in the luggage compartment area of ​​the vehicle send the vehicle operating parameters detected by the sensor signal module 22 to the third domain controller 1c in real time through the first wireless communication module 21.

[0045] Specifically, if Figure 1 As shown, in some embodiments, during normal driving of the vehicle, various actuators 3 in the front cabin area of ​​the vehicle send various execution signals of the actuators 3 to the first domain controller 1a through the second wireless communication module 31. At the same time, various actuators 3 in the front cabin area of ​​the vehicle receive control signals sent from the first domain controller 1a through the second wireless communication module 31, and perform corresponding command operations according to the control signals, including but not limited to controlling the air flow entering the engine, controlling the opening of the solenoid valve, or controlling the opening of the wiper. Various actuators 3 in the passenger compartment area of ​​the vehicle send various execution signals of the actuators 3 to the second domain controller 1b through the second wireless communication module 31. At the same time, various actuators 3 in the passenger compartment area of ​​the vehicle receive control signals sent from the second domain controller 1b through the second wireless communication module 31, and perform corresponding command operations according to the control signals, including but not limited to adjusting the temperature and humidity in the cabin or the opening and closing of the door. Various actuators 3 in the luggage compartment area of ​​the vehicle send various execution signals of the actuators 3 to the third domain controller 1c through the second wireless communication module 31. At the same time, the control signals sent by the third domain controller 1c are received through the second wireless communication module 31, and corresponding instruction operations are executed according to the control signals, including but not limited to the opening and closing actions of the luggage compartment door.

[0046] Optionally, refer to Figure 1 and Figure 3 , each of the domain controllers 1 includes a third wireless communication module 11; the third wireless communication module 11 is communicatively connected to the first wireless communication module 21 or the second wireless communication module 31.

[0047] Specifically, if Figure 1 and Figure 3As shown, since the domain controller 1 and the sensor 2, as well as the domain controller 1 and the actuator 3 adopt a wireless short-range communication connection mode. The domain controller 1 is provided with a third wireless communication module 11. When the third wireless communication module 11 is connected to the first wireless communication module 21 for communication, the domain controller 1 is connected to the sensor 2 for communication, and the third wireless communication module 11 and the first wireless communication module 21 have the same communication protocol. When the third wireless communication module 11 is connected to the second wireless communication module 31 for communication, the domain controller 1 is connected to the actuator 3 for communication, and the third wireless communication module 11 and the second wireless communication module 31 have the same communication protocol, that is, both adopt Bluetooth or WIFI network devices.

[0048] Optionally, refer to Figure 2 , and also includes a battery 4; the battery 4 is electrically connected to each of the domain controllers 1 to provide power for each of the domain controllers 1.

[0049] Specifically, if Figure 2 As shown, in the power supply and distribution system of the vehicle domain control system, a battery 4 is provided, and the positive electrode of the battery 4 is electrically connected to each domain controller 1 including the first domain controller 1a, the second domain controller 1b and the third domain controller 1c, to supply power to each domain controller 1. The power supply voltage supplied by the battery 4 is a low voltage, ranging from 12V to 24V.

[0050] Optionally, refer to Figure 2 , and also includes a current converter 5; the current converter 5 is electrically connected to the vehicle power supply, the current converter 5 is electrically connected to the battery 4 to supply power to the battery, and the current converter is also electrically connected to at least one of the domain controllers 1 to supply power to the domain controller 1.

[0051] Specifically, if Figure 2 As shown, a current converter 5 is also provided in the power supply and distribution system of the vehicle domain control system. The current converter 5 of this embodiment is a DCDC (Direct Current-to-Direct Current Converter). The current converter 5 is electrically connected to the positive pole of the battery 4, and converts the high-voltage current of the vehicle power supply into the low-voltage current required by the battery 4 and the domain controller 1. The current converter 5 is directly electrically connected to at least one domain controller 1 to supply power to the domain controller 1. In this embodiment, the current converter 5 is directly electrically connected to the second domain controller 1b and the third domain controller 1c to supply power to the second domain controller 1b and the third domain controller 1c. Therefore, the current converter 5 and the battery 4 can simultaneously supply power to the domain controller 1. When the battery 4 fails to operate due to a circuit failure, the current converter 5 can ensure the normal working state of the domain controller 1, thereby improving the reliability and safety of the power supply.

[0052] Optionally, refer to Figure 2 Each of the domain controllers 1 is electrically connected to at least one of the sensors 2 and at least one of the actuators 3 to provide power to the sensor 2 and the actuator 3.

[0053] Specifically, if Figure 2 As shown, each domain controller 1 is electrically connected to the corresponding sensor 2 and actuator 3 to supply power to the sensor 2 and actuator 3. The first domain controller 1a supplies power to all electrical appliances in the front cabin area of ​​the vehicle, including the sensor 2 and actuator 3 in the front cabin; the second domain controller 1b supplies power to all electrical appliances in the passenger cabin area of ​​the vehicle, including the sensor 2 and actuator 3 in the passenger cabin; and the third domain controller 1c supplies power to all electrical appliances in the luggage cabin area of ​​the vehicle, including the sensor 2 and actuator 3 in the luggage cabin. In addition, the ground wires of the domain controllers 1, sensors 2 and actuators 3 in each area are connected using the principle of nearest grounding.

[0054] Optionally, refer to Figure 1 and Figure 3 Each of the domain controllers 1 includes a local area network communication module 13; the local area network communication modules 13 of different domain controllers 1 are connected to each other through a local area network.

[0055] Specifically, if Figure 1 and Figure 3 As shown, the first domain controller 1a is connected to the second domain controller 1b through a local area network. Therefore, the local area network communication module 13 of the first domain controller 1a and the local area network communication module 13 of the second domain controller 1b have the same communication protocol. The second domain controller 1b is connected to the third domain controller 1c through a local area network. Therefore, the local area network communication module 13 of the second domain controller 1b and the local area network communication module 13 of the third domain controller 1c have the same communication protocol.

[0056] Optionally, the third wireless communication module 11 communicates with the first wireless communication module 21 or the second wireless communication module 31 via Bluetooth and / or wireless network.

[0057] Specifically, the communication connection between the first wireless communication module 21 on the sensor 2 and the third wireless communication module 11 on the domain controller 1, and the second wireless communication module 31 on the actuator 3 and the third wireless communication module 11 on the domain controller 1 includes Bluetooth and / or wireless network. Bluetooth connection is suitable for short-distance connection. Through frequency hopping technology, the possibility of signal interference is effectively reduced, the stability of the connection is ensured, and the power consumption is low. The transmission distance and transmission rate of wireless network connection are relatively high.

[0058] An embodiment of the present application also provides a vehicle, including the vehicle domain control system described in any of the above embodiments, which realizes communication connection between multiple actuators, sensors and domain controllers through wireless communication, reduces the length of signal transmission harnesses and the number of loops on various sensors and actuators of the whole vehicle, reduces the redundancy of internal harnesses in the vehicle, is beneficial to the internal layout and manufacturing and assembly of the vehicle, and realizes the lightweight of the vehicle.

[0059] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

[0060] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in this application, and these improvements and modifications should also be considered as the scope of protection of this application.

[0061] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0062] The vehicle domain control system and the vehicle provided by the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A vehicle domain control system, characterized in that: comprising at least two domain controllers, at least two sensors and at least two actuators; Each of the sensors includes a first wireless communication module, and each of the actuators includes a second wireless communication module; Each of the domain controllers is communicatively connected with at least one of the sensors via the first wireless communication module, and the first wireless communication module is used to send the signal detected by the sensor to the corresponding domain controller; each of the domain controllers is communicatively connected with at least one of the actuators via the second wireless communication module, and the second wireless communication module is used for signal transmission between the actuator and the domain controller; At least two of the domain controllers are communicatively connected via a local area network.

2. The vehicle domain control system according to claim 1, characterized in that: The at least two domain controllers are a first domain controller, a second domain controller and a third domain controller; The first domain controller is communicatively connected to the second domain controller via a local area network, the second domain controller is communicatively connected to the third domain controller via a local area network, and one of the three domain controllers is located in the front cabin of the vehicle, one is located in the passenger cabin of the vehicle, and another is located in the luggage compartment of the vehicle.

3. The vehicle domain control system according to claim 1, characterized in that: Each of the domain controllers includes a third wireless communication module; The third wireless communication module is communicatively connected with the first wireless communication module or the second wireless communication module.

4. The vehicle domain control system according to claim 1, characterized in that: Also includes batteries; The storage battery is electrically connected to each of the domain controllers to provide power for each of the domain controllers.

5. The vehicle domain control system according to claim 4, characterized in that: Also included is a current converter; The current converter is electrically connected to the vehicle power supply, the current converter is electrically connected to the battery to supply power to the battery, and the current converter is also electrically connected to at least one of the domain controllers to supply power to the domain controller.

6. The vehicle domain control system according to claim 4, characterized in that: Each of the domain controllers is electrically connected to at least one of the sensors and at least one of the actuators, and supplies power to the sensors and the actuators.

7. The vehicle domain control system according to claim 1, characterized in that: Each of the domain controllers includes a local area network communication module; The local area network communication modules of different domain controllers are connected for communication via a local area network.

8. The vehicle domain control system according to claim 3, characterized in that: The third wireless communication module is connected to the first wireless communication module or the second wireless communication module in a communication manner including Bluetooth and / or wireless network.

9. The vehicle domain control system according to any one of claims 1 to 8, characterized in that: The local area network includes Ethernet and / or controller area network.

10. A vehicle, characterized in that: The vehicle domain control system comprises the vehicle domain control system as described in any one of claims 1 to 9.

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