[ summary of the invention ]
The embodiment of the application provides a vehicle body control system and a vehicle, which can divide a zone controller based on the physical position of a vehicle body, and reduce the number of connecting wire harnesses, thereby reducing the weight of the vehicle body.
In a first aspect, an embodiment of the present application provides a vehicle body control system and a vehicle, including a central controller and a plurality of zone controllers connected with the central controller, the vehicle body control system includes:
the plurality of area controllers comprise a front automobile body area controller for managing a front automobile body area function, a left automobile body area controller for managing a left automobile body area function, a right automobile body area controller for managing a right automobile body area function and a rear automobile body area controller for managing a rear automobile body area function, wherein a plurality of electronic control units are arranged in management areas corresponding to the front automobile body area controller, the left automobile body area controller, the right automobile body area controller and the rear automobile body area controller respectively, and the electronic control units are connected with target area controllers corresponding to the management areas.
In the embodiment of the application, the vehicle body is divided into four areas, namely a front area, a rear area, a left area and a right area according to physical positions, the corresponding front vehicle body area functions are managed through a front vehicle body area controller, the corresponding left vehicle body area functions are managed through a left vehicle body area controller, the corresponding right vehicle body area functions are managed through a right vehicle body area controller, the corresponding rear vehicle body area functions are managed through a rear vehicle body area controller, compared with the prior art, the number of area controllers is reduced, the number of connecting wire harnesses is correspondingly reduced, and therefore the weight of the vehicle body is reduced.
Optionally, the plurality of electronic control units connected to the front body area controller include a driving electronic control unit, a braking electronic control unit, a steering electronic control unit, a suspension electronic control unit, a headlight electronic control unit, a wiper electronic control unit and a high-low voltage power-on electronic control unit.
In the embodiment of the application, the plurality of electronic control units connected to the front vehicle body area controller are respectively used for realizing functions of driving, braking, steering, suspension, headlights, windscreen wipers, high-low voltage power-on and the like, and when the functions are required to be realized, corresponding instructions need to be sent to the corresponding electronic control units.
Optionally, the plurality of electronic control units connected to the left body area controller include a left door electronic control unit, a left window electronic control unit, and a left rearview mirror electronic control unit.
In the embodiment of the application, a plurality of electronic control units connected with the left vehicle body area controller are respectively used for realizing functions of a left vehicle door, a left vehicle window, a left rearview mirror and the like, and when the functions are required to be realized, corresponding instructions are required to be sent to the corresponding electronic control units.
Optionally, the plurality of electronic control units connected to the right body area controller include a right vehicle door electronic control unit, a right vehicle window electronic control unit, and a right rearview mirror electronic control unit.
In the embodiment of the application, the plurality of electronic control units connected with the right body area controller are respectively used for realizing functions of a right vehicle door, a right vehicle window, a right rearview mirror and the like, and when the functions are required to be realized, corresponding instructions are required to be sent to the corresponding electronic control units.
Optionally, the plurality of electronic control units connected to the rear vehicle body area controller include a tail door lock electronic control unit, a tail lamp electronic control unit, and a license plate lamp electronic control unit.
In the embodiment of the application, the plurality of electronic control units connected with the rear vehicle body area controller are respectively used for realizing functions such as a tail door lock, a tail lamp and a license plate lamp, and when the functions are required to be realized, corresponding instructions are required to be sent to the corresponding electronic control units.
Optionally, the electronic control units and the target area controller corresponding to the management area are connected and communicated through a controller local area network.
In the embodiment of the application, the electronic control units and the target area controllers of the corresponding areas are connected and communicated through the control local area network, namely, all the electronic control units in the areas are communicated in a centralized mode through the area controllers, so that the control local area network is low in construction cost and simple to maintain.
Optionally, the plurality of zone controllers communicate with the central controller via an ethernet network.
In the embodiment of the application, the regional controller and the central controller are connected and communicated through the Ethernet network, the information transmission rate in the Ethernet network is high, and the information transmission efficiency is improved.
Optionally, the left body area controller, the right body area controller and the rear body area controller communicate with the central controller directly through the ethernet network, and the front body area controller indirectly communicates with the central controller through the ethernet network based on the left body area controller or the right body area controller.
In the embodiment of the application, the vehicle body area controller, the right vehicle body area controller and the rear vehicle body area controller are directly communicated with the central controller through the Ethernet network, the front vehicle body area controller needs to be indirectly communicated with the central controller through the Ethernet network based on the left vehicle body area controller and the right vehicle body area controller, namely, the central controller can receive the instruction of the front vehicle body area controller only after the instruction is forwarded through the left vehicle body area controller or the right vehicle body area controller, at least two interaction channels exist between each area controller and the central controller, when some area controllers fail, the situation that the information interaction between the other area controllers and the central controller is greatly influenced can be avoided, and therefore the safety of the information interaction is guaranteed.
Optionally, the rear vehicle body area controller is directly communicated with the right vehicle body area controller and the left vehicle body area controller through the ethernet network.
In the embodiment of the application, the rear vehicle body area controller, the right vehicle body area controller and the left vehicle body area controller are directly communicated through the Ethernet network, namely, communication interaction can be carried out among the area controllers, the area controllers can also directly control part of the electronic control units, the requirement for high calculation power of the central controller can be reduced, and the dependence on the central controller is reduced.
In a second aspect, an embodiment of the present application provides a vehicle, including: the embodiment of the first aspect of the invention provides a vehicle body control system.
It should be understood that the second aspect of the embodiment of the present application is consistent with the technical solution of the first aspect of the embodiment of the present application, and beneficial effects obtained by various aspects and corresponding possible implementation manners are similar and will not be described again.
[ detailed description ] embodiments
For better understanding of the technical solutions in the present specification, the following detailed description of the embodiments of the present application is provided with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present specification, and not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present specification without any inventive step are within the scope of the present specification.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the specification. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
The applicant researches and discovers that in the prior art, an automobile is divided into five domains, namely an automobile body control domain, a power control domain, a chassis control domain, a cockpit domain and an automatic driving domain according to the functional characteristics of the automobile, but the functional domains are more in dispersed arrangement and insufficient in centralized degree, so that more connecting wire harnesses are arranged, and the weight of the automobile body is larger.
In view of this, the embodiment of the present application provides a vehicle body control system, in which a vehicle body is divided into four regions, front, rear, left, and right regions according to physical positions, corresponding front vehicle body region functions are managed by a front vehicle body region controller, corresponding left vehicle body region functions are managed by a left vehicle body region controller, corresponding right vehicle body region functions are managed by a right vehicle body region controller, and corresponding rear vehicle body region functions are managed by a rear vehicle body region controller.
The technical solution provided by the embodiment of the present invention is described in detail below with reference to fig. 1.
Referring to fig. 1, an embodiment of the present invention provides a schematic view of a vehicle body control system, including a central controller 101 and a plurality of zone controllers connected to the central controller 101, wherein:
the plurality of area controllers comprise a front vehicle body area controller 102 for managing a front vehicle body area function, a left vehicle body area controller 103 for managing a left vehicle body area function, a right vehicle body area controller 104 for managing a right vehicle body area function and a rear vehicle body area controller 105 for managing a rear vehicle body area function, a plurality of electronic control units are arranged in management areas corresponding to the front vehicle body area controller 102, the left vehicle body area controller 103, the right vehicle body area controller 104 and the rear vehicle body area controller 105 respectively, and the plurality of electronic control units are connected with target area controllers corresponding to the management areas.
In the embodiment of the application, the vehicle body is divided into four areas based on the physical position, each area controller correspondingly manages the electronic control unit in the area, namely the front vehicle body area controller 102 manages the electronic control unit in the front vehicle body area, the left vehicle body area controller 103 manages the electronic control unit in the vehicle body area, the right vehicle body area controller 104 manages the electronic control unit in the right vehicle body area, and the rear vehicle body area controller 105 manages the electronic control unit in the rear vehicle body area.
Considering that a large number of electronic control units are included in the vehicle, each electronic control unit can realize corresponding functions, and with the intelligent development of the vehicle, more and more electronic control units are needed, but the large number of electronic control units can complicate wiring inside the vehicle and increase the weight of the vehicle body, and when the central controller 101 calls the electronic control units, the calling process is long and complicated.
Therefore, in the embodiment of the present application, integrated control is performed according to the physical positions of part of the electronic control units, and the functions implemented by the electronic control units are integrated, so that the central controller 101 and the zone controller can be directly invoked conveniently, the electronic control units are used for providing atomic capability, i.e., for implementing corresponding functions, without excessive operations and logic processing, so that the software and hardware development cost and the maintenance cost of the electronic control units are reduced, and the invocation of the functions implemented by the electronic control units is simpler and more direct.
As a possible implementation manner, the electronic control units are configured for service, that is, functions of a plurality of electronic control units are merged to form a service, and the central controller 101 and the zone controller can directly invoke the corresponding service.
It is considered that the additional servicing configuration is performed on the electronic control units to facilitate the calling, but there is a portion of the functions implemented by the electronic control units that need not be called by the central controller 101 or other zone controllers, and only information interaction between the electronic control units is needed.
Therefore, in the embodiment of the present application, when the functions implemented by the electronic control units located under different zone controllers do not need to be called by the central controller 101 or the zone controllers, the electronic control units do not need to be configured for service, thereby reducing the cost of configuration for service.
For example, an electronic control unit that does not need to be configured for service mainly includes: a meter related electronic control unit, a chassis related electronic control unit, a power related electronic control unit, and an autopilot related electronic control unit.
For example, please refer to fig. 2, which is a schematic diagram of an electronic control unit connected to the front body area controller 102. As shown, the plurality of electronic control units connected to the front body area controller 102 include a driving electronic control unit, a braking electronic control unit, a steering electronic control unit, a suspension electronic control unit, a headlight electronic control unit, a wiper electronic control unit, and a high-low voltage power-on electronic control unit.
For example, please refer to fig. 3, which is a schematic diagram of an electronic control unit connected to the left body area controller 103. As shown in the figure, the plurality of electronic control units connected to the left body region controller 103 include a left door electronic control unit, a left window electronic control unit, and a left mirror electronic control unit;
for example, please refer to fig. 4, which is a schematic diagram of the electronic control unit connected to the right body area controller 104. As shown, the plurality of electronic control units connected to the right body area controller 104 include a right door electronic control unit, a right window electronic control unit, and a right rearview mirror electronic control unit;
for example, please refer to fig. 5, which is a schematic diagram of an electronic control unit connected to the rear body area controller 105. As shown, the plurality of electronic control units connected to the rear body area controller 105 include a tail gate lock electronic control unit, a tail light electronic control unit, and a license lamp electronic control unit.
The data information transmission distance is short and the transmission information is less when the area controller and the electronic control unit are in communication connection and interaction. Therefore, in the embodiment of the application, the communication between the area controller and the electronic control unit can be performed based on the controller local area network with a short transmission distance, and the construction cost is low and the maintenance is simple under the condition that the information transmission requirements of the area controller and the electronic control unit are met.
Considering that, the central controller 101 and the plurality of zone controllers are connected for communication, the amount of information data to be transmitted is large, and a high transmission speed is required, for example, when a user in the vehicle adjusts the left window of the vehicle, the central controller 101 generates a corresponding control instruction based on the operation of the user, sends the control instruction to the left body zone controller 103, and the left body zone controller 103 sends the control instruction to the corresponding electronic control unit, so that the high control information transmission is required to be ensured in response to the current adjustment of the window state by the user, and the use requirement of the user is met.
Therefore, in the embodiment of the application, communication can be performed based on the ethernet network, and the transmission rate of the ethernet network can be as high as 100M or even can be iterated to 1000M, so that the transmission rate of the instruction sent by the central controller 101 is ensured, and the use experience of the user is improved.
As a possible implementation, a plurality of zone controllers communicate with the central controller 101 through an ethernet network connection, which satisfies the requirement of efficient transmission of commands.
In some embodiments, each of the plurality of zone controllers is in mutual communication with each other, and one of the zone controllers is connected to the central controller 101, that is, all control commands issued by the central controller 101 need to be forwarded by the connected zone controller, and when a fault occurs in the zone controller connected to the central controller 101, the command issued by the central controller 101 cannot be timely sent to other zone controllers, thereby causing a fault in the vehicle.
Therefore, in the embodiment of the present application, a plurality of zone controllers are connected and communicated with the central controller 101, and the central controller 101 can directly transmit instructions to the connected zone controllers. The control instruction sent by the central controller 101 can be received by forwarding of other zone controllers, and it can be ensured that each zone controller has at least two communication transmission lines to interact with the central controller 101, so that the control instruction sent by the central controller 101 can be timely and accurately sent to the corresponding zone controller, and the efficiency of control instruction transmission is ensured.
As a possible implementation, the left body area controller 103, the right body area controller 104, and the rear body area controller 105 directly communicate with the central controller 101 through the ethernet network, and the front body area controller 102 indirectly communicates with the central controller 101 through the ethernet network based on the left body area controller 103 or the right body area controller 104, that is, the instruction sent by the central controller 101 to the front body area controller 102 needs to be forwarded by the left body area controller 103 or the right body area controller 104 before being received.
In some embodiments, the central controller 101 issues control commands to the electronic control units in the plurality of area controllers in a unified manner, that is, the area controllers do not directly control the electronic control units in the area, but serve as communication midpoints for performing communication interaction with the central controller 101, and serve only as forwarding stations for commands issued by the central controller 101, so all control information needs to be processed by the central controller 101, which results in higher requirements on computing power of used chips by the central controller 101 and stronger chip dependence on high computing power.
Therefore, in the embodiment of the present application, the zone controllers can also perform communication interaction, that is, each zone controller can control part of the electronic control units in a zone without depending on the central controller 101, and can call the electronic control units in the connected adjacent zone controllers, so that the dependency of the central controller 101 on a high-computing-power chip is reduced, and the cost of a vehicle chip can be reduced.
As a possible implementation manner, the rear body area controller 105 directly communicates with the right body area controller 104 and the left body area controller 103 through the ethernet network, that is, the rear body area controller 105 can control part of the electronic control units in the area control, and can call up part of the electronic control units in the connected left body area controller 103 and the right body area controller 104, so as to reduce the dependence on the high-computing power chip of the central controller 101.
It is considered that when information on an electronic control unit is called by the central controller 101 and other electronic control units on the current area controller at the same time, it may happen that it takes a long time to sequentially transmit information causing subsequent transmission to arrive at the calling controller, affecting efficiency.
Therefore, in the embodiment of the present application, a dual-transmission mode may be adopted, that is, the electronic control unit sends the called information to the called controller and the electronic control unit at the same time, so as to ensure the efficiency of information transmission.
As a possible implementation manner, when the electronic control unit is called by the central controller 101 and the electronic control unit on the current area controller, the electronic control unit of the called information can send the information to the current area controller through the controller local area network, and then the information is forwarded to the central controller by the current area controller, and simultaneously, the information is directly sent to the electronic control unit of the current area controller, which needs to call the information, through the controller local area network, thereby ensuring that the called information can efficiently reach the called controller and the electronic control unit.
Referring to fig. 6, a schematic diagram of a vehicle body control system according to an embodiment of the present invention is described in detail as follows:
the central controller 101 is used for exchanging and transmitting data with a plurality of zone controllers, and processing and issuing control commands according to the obtained data; the front body area controller 102 is used for managing electronic control units located in the front body area, the left body area controller 103 is used for managing electronic control units located in the left body area, the right body area controller 104 is used for managing electronic control units located in the right body area, and the rear body area controller 105 is used for managing electronic control units located in the rear body area;
a driving electronic control unit, a braking electronic control unit, a steering electronic control unit, a suspension electronic control unit, a headlight electronic control unit, a wiper electronic control unit, a high-low voltage electrifying electronic control unit and the like are connected in the front vehicle body area controller 102 through a controller area network; a left vehicle door electronic control unit, a left vehicle window electronic control unit, a left rearview mirror electronic control unit and the like are connected in the left vehicle body area controller 103 through a controller local area network; a right vehicle door electronic control unit, a right vehicle window electronic control unit, a right rearview mirror electronic control unit and the like are connected in the right vehicle body area controller 104 through a controller local area network; a tail lamp door lock electronic control unit, a tail lamp electronic control unit, a license lamp electronic control unit, and the like are connected to the rear vehicle body area controller 105 through a controller lan.
The central controller 101 is connected and communicated with the left body area controller 103, the right body area controller 104 and the rear body area controller 105 through the Ethernet network, the front body area controller 102 is connected and communicated with the left body area controller 103 and the right body area controller 104 through the Ethernet network, the rear body area controller 105 is connected and communicated with the left body area controller 103 and the right body area controller 104 through the Ethernet network, namely, the information transmission between the central controller and the front body area controller 102 needs to be forwarded through the left body area controller 103 or the right body area controller 104, and different area controllers can also be directly communicated through the Ethernet network.
Referring to fig. 7, the embodiment of the present application provides a vehicle 200, where the vehicle 200 includes a vehicle body control system as shown in fig. 6.
The above description is only a preferred embodiment of the present disclosure, and should not be taken as limiting the present disclosure, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.