Vehicle

Abstract

The application discloses a vehicle which is divided into multiple domains, each domain includes a domain controller and at least one intra-domain controller connected with the domain controller through an intra-domain network, and multiple domain controllers are connected through an inter-domain network, wherein the domain controller is used for selectively supplying power to the corresponding intra-domain controller according to the power input condition of the domain controller and the whole vehicle network instruction received based on the inter-domain network. The vehicle of the application can simplify network management behavior, reduce the cost of wiring harness, reduce the static loss when the vehicle is placed, and indirectly improve the endurance of the vehicle.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more particularly to a vehicle. Background Technology

[0002] With the global car ownership increasing year by year, rapidly growing oil consumption and increasingly severe environmental pressures are forcing the automotive industry to pursue an energy-saving and environmentally friendly development path. New energy vehicles, especially electric vehicles, are an inevitable trend in the automotive industry, leading to the development of intelligent and connected technologies. At the same time, the energy efficiency and range of electric vehicles are of particular concern. Currently, related technologies cannot avoid power loss when the vehicle is stationary, and network management requires dedicated signal harnesses, making network management relatively complex. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, a first objective of this invention is to provide a vehicle divided into multiple domains, each domain including a domain controller and at least one intra-domain controller connected to the domain controller via an intra-domain network. The multiple domain controllers are connected via an inter-domain network. The domain controller selectively supplies power to its corresponding intra-domain controller based on its own power input and vehicle network instructions received from the inter-domain network. This simplifies network management, reduces wiring harness costs, lowers electrostatic discharge during vehicle placement, and indirectly improves the vehicle's range.

[0004] To achieve the above objectives, a first aspect of the present invention provides a vehicle divided into multiple domains, each domain including a domain controller and at least one intra-domain controller connected to the domain controller via an intra-domain network, the multiple domain controllers being connected via an inter-domain network, wherein the domain controller is configured to selectively supply power to its corresponding intra-domain controller based on its own power input and vehicle network instructions received from the inter-domain network.

[0005] According to an embodiment of the present invention, a vehicle is divided into multiple domains, each domain including a domain controller and at least one intra-domain controller connected to the domain controller via an intra-domain network. The multiple domain controllers are connected via an inter-domain network. The domain controller is used to selectively supply power to its corresponding intra-domain controller based on its own power input and the vehicle network instructions received from the inter-domain network. As a result, the vehicle can simplify network management, reduce wiring harness costs, reduce electrostatic discharge when the vehicle is placed, and indirectly improve the vehicle's range.

[0006] In addition, the vehicle according to the above embodiments of the present invention may also have the following additional technical features:

[0007] According to one embodiment of the present invention, the domain controller is configured to: supply power to its corresponding domain controller when its own power input includes constant power and wake-up power; and when its own power input includes constant power, determine whether it is necessary to supply power to its corresponding domain controller according to the vehicle network instruction, and supply power to its corresponding domain controller when necessary.

[0008] According to one embodiment of the present invention, the domain controller is further configured to: send a user mode instruction to the intra-domain network when its own power input includes constant power and wake-up power, so that the intra-domain controller determines that the vehicle is currently in a wake-up state; and send a power-down mode instruction to the intra-domain network when its own power input includes constant power, so that the intra-domain controller determines that the vehicle is currently in a power-down state.

[0009] According to one embodiment of the present invention, the domain controller is further configured to: send a first instruction to the inter-domain network when its own power input includes constant power and wake-up power, wherein the first instruction sent by multiple domain controllers is the same; and send a second instruction to the inter-domain network when its own power input includes constant power, wherein the second instructions sent by multiple domain controllers are different.

[0010] According to one embodiment of the present invention, the domain controller is further configured to: acquire and store user demand information of its corresponding domain controller, and send it to its corresponding domain controller after the corresponding domain controller is powered on.

[0011] According to one embodiment of the present invention, the domain controller includes one or more of the following: body domain controller, cockpit domain controller, advanced driver assistance system (ADAS) domain controller, and powertrain chassis domain controller.

[0012] According to one embodiment of the present invention, the domain controller is further configured to connect to a wireless communication module and an on-board self-diagnostic system via the inter-domain network.

[0013] According to one embodiment of the present invention, the vehicle is an electric vehicle.

[0014] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] Figure 1 A schematic block diagram of a vehicle according to an embodiment of the present invention;

[0016] Figure 2 This is a block diagram of a vehicle according to a specific embodiment of the present invention. Detailed Implementation

[0017] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0018] The vehicle proposed in the embodiments of the present invention will now be described with reference to the accompanying drawings.

[0019] Figure 1 This is a block diagram of a vehicle according to an embodiment of the present invention.

[0020] like Figure 1 As shown, the vehicle is divided into multiple domains, each domain including a domain controller 100 and at least one intra-domain controller 200.

[0021] Each domain includes a domain controller 100 and at least one intra-domain controller 200 connected to the domain controller 100 via an intra-domain network. Multiple domain controllers 100 are connected via an inter-domain network. The domain controller 100 is used to selectively supply power to its corresponding intra-domain controller 200 based on its own power input and the vehicle network instructions received from the inter-domain network.

[0022] Specifically, in one embodiment of the present invention, a vehicle can be divided into multiple domains based on a combination of regionality and functionality. For example, it can be divided into domain 1, domain 2, ..., domain n, and the specific number can be determined according to the functions of the vehicle. Each domain may include a domain controller 100 and at least one intra-domain controller 200 connected to the domain controller 100 via an intra-domain network. Multiple domain controllers 100 can be connected via an inter-domain network, thereby enabling communication between multiple domain controllers 100. For example, when a certain function needs to be implemented, multiple domain controllers 100 may work simultaneously.

[0023] Domain controller 100 may have gateway functionality, enabling routing between inter-domain networks and external gateways, and power distribution functionality, managing the power supply and consumption of each controller 200 within the domain. Domain controller 100 can selectively supply power to its corresponding controller 200 within the domain based on its own power input and vehicle network commands received from the inter-domain network. For example, when the vehicle is off-state, only domain controller 100 has a constant power input, while the controller 200 within the domain has no power input. Unless the user is near the vehicle or remotely controlling it, domain controller 100 will not supply power to its corresponding controller 200, thus saving power. When the vehicle is on-state, domain controller 100 will increase its IG (Ignition) power (power supplied when the key is turned to the ON position) and supply power to its corresponding controller 200 within the domain. This ensures that all vehicle functions are operational when the vehicle is on-state, improving the consistency of the vehicle's sleep / wake-up process.

[0024] For example, when the vehicle is not started, only the domain controller 100 has a constant power input. However, if the user sends a network command via a mobile device, such as a command to turn on the air conditioner to cool down the vehicle in advance, the corresponding domain controller 100 is determined based on this function. Then, according to the vehicle network command received from the inter-domain network, the corresponding intra-domain controller 200 is powered on. After the intra-domain controller 200 is powered on, the air conditioner can be turned on. Thus, network management is performed through power management, which simplifies network management behavior.

[0025] Therefore, the domain controller is used to selectively supply power to the controllers in its corresponding domain based on its own power input and the vehicle network instructions received from the inter-domain network. This can reduce wiring harness costs, reduce electrostatic losses when the vehicle is parked, and indirectly improve the vehicle's range.

[0026] According to one embodiment of the present invention, the domain controller 100 is configured to: supply power to its corresponding domain controller 200 when its own power input includes constant power and wake-up power; and when its own power input includes constant power, determine whether it is necessary to supply power to its corresponding domain controller according to the vehicle network instruction, and supply power to its corresponding domain controller when necessary.

[0027] Specifically, the domain controller 100 has a power distribution function, that is, it has the function of supplying power and managing power consumption to its corresponding domain controller 200. In one embodiment of the present invention, in order to save wiring harnesses and reduce costs, the wiring harness that provides IG (Ignition) power to the domain controller 200 can be removed, that is, the ignition wire of the domain controller can be removed, and the domain controller 100 can provide IG power (the power supply turned on when the key is in the ON position, that is, the wake-up power). Constant power is the power that the vehicle always has, that is, the power that is available when the vehicle is stationary, regardless of whether it is started or not. The domain controller 100 has constant power input when the vehicle is stationary and not started.

[0028] The current input power of the domain controller 100 is determined. When the power input of the domain controller 100 includes constant power and wake-up power, i.e. the vehicle is currently ignited, the domain controller 100 can supply power to its corresponding domain controller 200, so that each domain controller 200 is powered on. After the domain controller 200 is powered on, it can execute the corresponding network commands, so that the vehicle can perform the corresponding functions after ignition.

[0029] When the domain controller 100's own power input only includes constant power, it can determine whether to supply power to its corresponding domain controller 200 according to the vehicle network command, and supply power to its corresponding domain controller 200 when necessary. For example, when the domain controller 100's own power input only includes constant power and the vehicle is in a turned-off state, it can control the operation of different domain controllers 200 according to different vehicle network commands. For example, when a user passes by the vehicle with the car key, the corresponding domain controller 100 can detect that the user is near the vehicle, and can send a vehicle network command to turn on the power of the domain controller 200. After the domain controller 200 is powered on, it can perform welcome functions such as unfolding the rearview mirrors and turning on the headlights.

[0030] According to one embodiment of the present invention, the domain controller 100 is further configured to: send a user mode instruction to the intra-domain network when its own power input includes constant power and wake-up power, so that the intra-domain controller determines that the vehicle is currently in a wake-up state; and send a power-down mode instruction to the intra-domain network when its own power input includes constant power, so that the intra-domain controller determines that the vehicle is currently in a power-down state.

[0031] Specifically, the domain controller 100 has a network management mode status function, meaning it can monitor and issue two network management mode statuses, and these statuses are only issued and interacted with by the domain controller 100 within the domain network. When the domain controller 100's own power input includes both constant power and wake-up power, it indicates that the current user has started the engine, and it can send a user mode command to the domain network so that the domain controller 200 can determine that the vehicle is currently in a wake-up state. When the domain controller 100's own power input includes constant power, it indicates that the current vehicle is not in a wake-up state, and it can send a power-down mode command to the domain network so that the domain controller 200 can determine that the vehicle is currently in a power-down state. This solves the problem that, since the domain controller 200 eliminates the IG wiring harness, each domain controller 200 can only determine that it is powered on by the domain controller 100, but cannot determine whether the current vehicle is in a wake-up or power-down state, thus ensuring the functional integrity of the vehicle.

[0032] According to one embodiment of the present invention, the domain controller 100 is further configured to: send a first instruction to the inter-domain network when its own power input includes constant power and wake-up power, and the first instruction sent by multiple domain controllers 100 is the same; and send a second instruction to the inter-domain network when its own power input includes constant power, and the second instructions sent by multiple domain controllers 100 are different.

[0033] Specifically, the domain controller 100 has local network management command functionality, meaning it can control the network behavior of its local network segment based on vehicle network management commands and its own functional enablement. These network management commands are only exchanged and used within the inter-domain network between domain controllers 100. When the domain controller 100's power input includes constant power and wake-up power, it indicates that the vehicle is currently ignited. It can then send a first command to the inter-domain network, and multiple domain controllers 100 can send the same first command, effectively enabling all domain controllers 100 to power on uniformly. When the domain controller 100's power input includes constant power, it can send a second command to the network, and multiple domain controllers 100 can send different second commands. This means that when the vehicle is not ignited, the domain controller 100 can issue different commands based on its own functions, determining which domain controller 100 should power on based on these commands, thereby controlling the power-on of the corresponding intra-domain controller 200 and ensuring the normal operation of the corresponding functions.

[0034] According to one embodiment of the present invention, the domain controller 100 is further configured to: obtain and store user demand information of its corresponding domain controller 200, and send it to its corresponding domain controller 200 after the domain controller 200 is powered on.

[0035] Specifically, the domain controller 100 can have a storage and memory function, meaning it can have the user requirement-related configuration of its corresponding domain controller 200. In other words, since the domain controller 200 has eliminated the IG wiring harness, if it continues to store user-related configurations and requirement information on its own, there may be information loss when the vehicle is powered off. Therefore, the domain controller 100 can obtain and store the user requirement information of its corresponding domain controller 200. When the domain controller 100's own power input includes constant power and wake-up power, its corresponding domain controller 200 will be powered on. After power-on, the domain controller 100 can send the stored user requirement information to its corresponding domain controller 200. After receiving the relevant configuration, the domain controller 200 can execute the corresponding function. For example, after the corresponding domain controller 200 is powered on, it can obtain information such as the position and backrest angle of the driver's seat, so that the driver's seat can be automatically adjusted when the vehicle door is opened.

[0036] In addition, different domain controllers 100 can store different user requirement information. For example, in some user settings for assisted driving functions, such as when the user turns on the collision alarm, the domain controller 100 can store the user requirement information of its corresponding domain controller 200, that is, store the collision alarm on status, and send it to its corresponding domain controller 200 after it is powered on. After receiving the information, the domain controller 200 can turn on the collision alarm.

[0037] According to one embodiment of the present invention, such as Figure 2 As shown, the domain controller 100 may include one or more of the following: body domain controller 110, cockpit domain controller 120, advanced driver assistance system domain controller 130, and powertrain chassis domain controller 140.

[0038] Specifically, different vehicles or different models of the same vehicle may have different functions. Domain controller 100 can be adjusted according to the specific functional configuration of the vehicle. For example, domain controller 100 may include one of the following: body domain controller 110, cockpit domain controller 120, advanced driver assistance system (ADAS) domain controller 130, and powertrain chassis domain controller 140. It may also include multiple domain controllers, such as domain controller 100 including body domain controller 110 and cockpit domain controller 120, or domain controller 100 including body domain controller 110 and ADAS domain controller 130, or domain controller 100 including body domain controller 110 and powertrain chassis domain controller 140, or domain controller 100 including cockpit domain controller 120 and ADAS domain controller 130, or domain controller 100 including... Domain controller 100 may include cockpit domain controller 120 and powertrain chassis domain controller 140, or domain controller 100 may include advanced driver assistance system (ADAS) domain controller 130 and powertrain chassis domain controller 140, or domain controller 100 may also include body domain controller 110, cockpit domain controller 120 and ADAS domain controller 130, or domain controller 100 may also include body domain controller 110, cockpit domain controller 120 and powertrain chassis domain controller 140, or domain controller 100 may also include cockpit domain controller 120, ADAS domain controller 130 and powertrain chassis domain controller 140, or domain controller 100 may also include body domain controller 110, cockpit domain controller 120, ADAS domain controller 130 and powertrain chassis domain controller 140.

[0039] Taking the domain controller 100, which includes the body domain controller 110, cockpit domain controller 120, advanced driver assistance system (ADAS) domain controller 130, and powertrain chassis domain controller 140, as an example, the body domain controller 110, also known as the BCM (body control module), is the core controller for controlling vehicle accessories. It can control interior and exterior lighting, windows, keyless entry and start systems, anti-theft alarm control, and windshield washer control via CAN / LIN bus or hardwired connections. The cockpit domain controller 120 can integrate functions such as in-vehicle infotainment systems, LCD instrument clusters, and HUD (Head-up Display) systems. The ADAS domain controller 130 enables the vehicle to perform multi-sensor fusion, localization, path planning, and decision-making control. The powertrain chassis domain controller 140 controls the vehicle's powertrain, optimizes vehicle power performance, ensures vehicle power safety, and controls vehicle driving behavior and attitude.

[0040] According to one embodiment of the present invention, such as Figure 2 As shown, the domain controller 100 is also used to connect to the wireless communication module 300 and the vehicle self-diagnostic system 400 via an inter-domain network.

[0041] Specifically, the domain controller 100 is also connected to the wireless communication module 300 and the on-board diagnostic system 400 through an inter-domain network. The wireless communication module 300 has message routing capabilities. When there are multiple domain controllers 100, they can communicate with each other through the wireless communication module 300 to exchange, process, and share data. It can also enable the inter-domain network to communicate with external networks. The on-board diagnostic system 400 can quickly diagnose vehicle faults, reduce the time for manual diagnosis, and obtain various operating data of the vehicle, such as data displayed on the vehicle's instrument panel, various fuel consumption records, battery voltage, air-fuel ratio, throttle opening, etc.

[0042] According to one embodiment of the present invention, the vehicle is an electric vehicle. By eliminating the IG power input of the domain controller 200, a considerable amount of wiring harness cost can be saved. Furthermore, by eliminating the constant power input of the domain controller 200 when the engine is not ignited, the power loss of the electric vehicle when it is left unattended for a long time can be resolved, thereby indirectly improving the overall vehicle range.

[0043] In summary, the vehicle according to embodiments of the present invention is divided into multiple domains, each domain including a domain controller and at least one intra-domain controller connected to the domain controller via an intra-domain network. The multiple domain controllers are connected via an inter-domain network. The domain controller is used to selectively supply power to its corresponding intra-domain controller based on its own power input and the vehicle network instructions received from the inter-domain network. As a result, the vehicle can simplify network management, reduce wiring harness costs, reduce electrostatic discharge when the vehicle is placed, and indirectly improve the vehicle's range.

[0044] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0045] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0046] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A vehicle characterized by comprising: The vehicle is divided into a plurality of domains, each domain including a domain controller and at least one intra-domain controller connected to the domain controller through an intra-domain network, and a plurality of domain controllers are connected through an inter-domain network, wherein the domain controller is configured to selectively supply power to the corresponding intra-domain controller according to the power input of the domain controller and the vehicle network instruction received based on the inter-domain network; The domain controller has a power distribution function and a network management mode state function, and cancels the connection of the ignition line with the intra-domain controller; The domain controller is configured to: When the power input of the domain controller includes normal power and wake-up power, supply power to the corresponding intra-domain controller and send a user mode instruction to the intra-domain network to determine that the vehicle is currently in a wake-up state; When the power input of the domain controller includes only normal power, determine whether the corresponding intra-domain controller needs to be powered according to the vehicle network instruction, and when needed, supply power to the corresponding intra-domain controller and send a power-off mode instruction to the intra-domain network to determine that the vehicle is currently in a power-off state.

2. The vehicle of claim 1, wherein The domain controller is further configured to: When the power input of the domain controller includes normal power and wake-up power, send a first instruction to the inter-domain network, and the first instructions sent by a plurality of domain controllers are the same; When the power input of the domain controller includes normal power, send a second instruction to the inter-domain network, and the second instructions sent by a plurality of domain controllers are different.

3. The vehicle of claim 1, wherein The domain controller is further configured to: Obtain user demand information of the corresponding intra-domain controller and store it, and send it to the corresponding intra-domain controller after the corresponding intra-domain controller is powered on.

4. The vehicle according to any one of claims 1 to 3, characterized in that The domain controller includes one or more of a vehicle body domain controller, a cabin domain controller, an advanced auxiliary intelligent driving domain controller, and a power chassis domain controller.

5. The vehicle of claim 4, wherein The domain controller is further configured to be connected to a wireless communication module and an on-board diagnostic system through the inter-domain network.

6. The vehicle of claim 1, wherein The vehicle is an electric vehicle.

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