Power distribution method and system for vehicle, and vehicle

Abstract

The invention provides a power distribution method for a vehicle, and the method comprises the steps that a vehicle central calculation unit determines a corresponding atomic service and a power distribution channel demand according to a function scene demand, and the atomic service is a minimum function module for achieving the function scene demand; a corresponding area controller is determined according to the power distribution channel requirement, a first request instruction is sent to the area controller, and the first request instruction comprises a power distribution channel calling request; and the area controller calls a corresponding power distribution channel according to the first request instruction, and performs power distribution on a sensor or an actuator corresponding to the power distribution channel. Compared with a traditional mode that a plurality of ECUs supply power through KL30, the method has the advantages that quiescent current is easier to control, decoupling of function scenes and power distribution modes is achieved, power supply logic is more flexible, the method adapts to different function scene requirements, and through a centralized power distribution framework and introduction of an SOA atomic power distribution service concept, the power distribution efficiency is improved. Accurate power distribution of a sensor or an actuator is realized, and the energy consumption of the whole vehicle is reduced.

Description

Technical Field

[0001] The present invention relates to the field of vehicles, and particularly to a power distribution method and system for a vehicle, and a vehicle. Background Art

[0002] In the prior art, vehicle power distribution management is usually carried out by a BCM (body control module). Multiple ECUs are directly connected to the battery and powered by KL30, and it is difficult to control the static current. At the same time, there is KL15 power (ignition switch ON position). When an ECU needs KL15 power supply to work, all ECUs under KL15 will be powered, and accurate power distribution cannot be achieved, which easily causes energy waste. Moreover, the ECU power supply control is strongly coupled with the functional scenario. When the functional scenario expands, the power supply control logic of the ECU needs to be changed, and it is difficult to adapt to the current increasingly rich vehicle functional scenarios. Summary of the Invention

[0003] In order to improve the accuracy of power distribution, reduce power waste, reduce the energy consumption of the whole vehicle, and strengthen the control of static current at the same time, the present invention provides a power distribution method for a vehicle, including:

[0004] The vehicle central computing unit determines the corresponding atomic service and power distribution channel requirements according to the functional scenario requirements, and the atomic service is the smallest functional module for realizing the functional scenario requirements;

[0005] Determine the corresponding area controller according to the power distribution channel requirements, and send a first request instruction to the area controller, where the first request instruction includes a request for calling a power distribution channel;

[0006] The area controller calls the corresponding power distribution channel according to the first request instruction to distribute power to the sensor or actuator corresponding to the power distribution channel.

[0007] Preferably, the vehicle central computing unit determines the corresponding atomic service according to the functional scenario requirements, determines the required sensors or actuators according to the atomic service, determines the power distribution channel requirements according to the required sensors or actuators,

[0008] Determine and wake up the corresponding area controller according to the power distribution channel requirements;

[0009] The area controller initializes, receives the first request instruction, and the first request instruction includes a request for calling an atomic service and a request for calling a power distribution channel;

[0010] The area controller turns on the power distribution channel according to the first request instruction to distribute power to the corresponding sensor or actuator.

[0011] Preferably, the area controller initializes, calls the corresponding power distribution channel according to the first request instruction, sends an opening instruction to the intelligent power distribution module of the power distribution channel, the intelligent power distribution module is turned on, and the power distribution channel distributes power to the corresponding sensor or actuator.

[0012] Preferably, the vehicle central computing unit determines the corresponding atomic services and power distribution channel requirements according to the functional scenario requirements, and updates the required atomic services and power distribution channel requirements in real time;

[0013] Determine the corresponding area controller according to the updated power distribution channel requirements, and send a second request instruction to the area controller, where the second request instruction includes a request to call or close the power distribution channel;

[0014] The area controller calls or closes the corresponding power distribution channel according to the second request instruction, and distributes power to the sensor or actuator corresponding to the power distribution channel.

[0015] Preferably, the vehicle central computing unit determines the corresponding atomic services and power distribution channel requirements according to the functional scenario requirements, and determines the required atomic services and power distribution channel requirements to be called or closed;

[0016] Determine the corresponding area controller according to the required power distribution channel requirements to be called or closed, and send a second request instruction to the area controller, where the second request instruction includes a request to call or close the power distribution channel.

[0017] On the other hand, the present invention provides a power distribution system for a vehicle, which applies the power distribution method for a vehicle described in any one of the above.

[0018] Preferably, it includes: a vehicle central computing unit and an area controller,

[0019] The vehicle central computing unit is used to determine the corresponding atomic services and power distribution channel requirements according to the functional scenario requirements, where the atomic service is the smallest functional module for realizing the functional scenario requirements; and is used to determine the corresponding area controller according to the power distribution channel requirements, and send a first request instruction to the area controller, where the first request instruction includes a request to call the power distribution channel;

[0020] The area controller is used to call the corresponding power distribution channel according to the first request instruction, and distribute power to the sensor or actuator corresponding to the power distribution channel.

[0021] The present invention also discloses a vehicle, which includes the power distribution system for a vehicle described in any one of the above.

[0022] After adopting the above technical solutions, compared with the prior art, the following beneficial effects are achieved:

[0023] 1. Compared with the traditional power supply of multiple ECUs through KL30, the static current in the present invention is easier to control.

[0024] 2. It can realize the individual power supply for each sensor and sensor or actuator at the end, decouple the functional scenario from the power distribution method, make the power supply logic more flexible, and adapt to the requirements of different functional scenarios.

[0025] 3. Through the central centralized power distribution architecture and the introduction of the concept of SOA atomic power distribution service, precise power distribution for sensors or actuators and sensors is realized, reducing the energy consumption of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is a schematic diagram of a general power distribution method for vehicles in the prior art.

[0027] Figure 2 FIG. is a schematic diagram of a power distribution method for vehicles according to an embodiment of the present invention.

[0028] Figure 3 is Figure 2 a schematic diagram of the power distribution method for vehicles in the shown embodiment.

[0029] Figure 4 FIG. is a schematic diagram of another power distribution method for vehicles according to an embodiment of the present invention.

[0030] Figure 5 FIG. is a schematic diagram of another power distribution method for vehicles according to an embodiment of the present invention.

[0031] Figure 6 FIG. is a schematic diagram of a power distribution system for vehicles according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The advantages of the present invention are further elaborated below in conjunction with the drawings and specific embodiments.

[0033] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0034] The terms used in this disclosure are for the purpose of describing particular embodiments only and are not intended to limit the disclosure. The singular forms "a", "the", and "said" used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0035] In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] In the subsequent description, the suffixes such as "module", "component", or "unit" used to represent elements are only for the convenience of the description of the present invention and have no specific meaning in themselves. Therefore, "module" and "component" can be used interchangeably.

[0037] Figure 1 It is a schematic diagram of a general power distribution method for vehicles in the prior art. According to Figure 1 As can be seen, in the power distribution method in the prior art, multiple ECUs are connected to KL30 power (battery supply voltage), and the static current is difficult to control. At the same time, there is KL15 power. When an ECU needs KL15 power supply to work, all ECUs under KL15 will be powered, resulting in energy waste.

[0038] To address the above technical problems, as Figure 2 shown, in an embodiment of the present invention, a power distribution method for vehicles is provided, which specifically includes:

[0039] The vehicle central computing unit determines the corresponding atomic services and power distribution channel requirements according to the functional scenario requirements, and the atomic service is the smallest functional module for realizing the functional scenario requirements;

[0040] According to the power distribution channel requirements, determine the corresponding regional controller, and send a first request instruction to the regional controller, where the first request instruction includes a request for calling a power distribution channel;

[0041] The regional controller calls the corresponding power distribution channel according to the first request instruction to distribute power to the sensors or actuators corresponding to the power distribution channel.

[0042] As Figure 3As shown in the figure, the "functional scenario requirement" in the present invention is realized by an APP (application program) of the application scenario calling multiple atomic services and the corresponding power distribution channel requirements of the atomic services. For example, one-key vehicle preparation, welcome mode, etc. The "atomic service" in the present invention refers to a functional module that can implement certain data fusion or control logic. It is the smallest unit and single execution entity for realizing the service of the functional scenario requirement, and provides an on-demand orchestrated basic service for the application through the API.

[0043] For example, when the functional scenario requirement is "adjusting cockpit comfort", the corresponding atomic services include: seat ventilation, air conditioning, ambient temperature, air quality, and ventilation control. That is, in this embodiment, a functional scenario requirement is decomposed into several functional modules (atomic services), and precise power distribution to sensors or actuators is achieved by controlling the power distribution channels corresponding to the functional modules, thereby improving the flexibility of the power distribution scheme and reducing the energy consumption of the whole vehicle. Among them, the interface can be a request / response interface.

[0044] Such as Figure 4 As shown in the figure, when the vehicle is in a stationary state, the vehicle Central Compute Unit (CCU) is in a sleep state. The power distribution method of this embodiment includes:

[0045] S1: The CCU determines the corresponding atomic service according to the functional scenario requirement, determines the required sensors or actuators according to the atomic service, and determines the power distribution channel requirement according to the required sensors or actuators.

[0046] In this embodiment, the functional scenario requirement is: remote control of cockpit comfort. The atomic services determined by the CCU according to this functional scenario requirement are: seat ventilation, AC (air conditioning), ambient temperature, air quality, and ventilation control. Correspondingly, the required sensors or actuators (loads) are: driver's seat ventilation motor, co-driver's seat ventilation motor, air conditioning compressor, ambient temperature sensor, air quality sensor, and blower. And further determine the power distribution channel requirement according to the above sensors or actuators.

[0047] S2: Determine and wake up the corresponding regional controller according to the power distribution channel requirement:

[0048] This embodiment includes 4 regional controllers, namely the front regional controller, the rear regional controller, the left regional controller, and the right regional controller. The regional controller includes an intelligent power distribution module. In actual use, the regional controller is internally integrated with a PDC board (intelligent power distribution control board) and an electronic fuse (Electronic fuse) hardware-wise, which is used to perform secondary power distribution functions, receive the power distribution control commands of the vehicle central computing unit, and distribute power to the lower-level loads (sensors, sensors or actuators, controllers).

[0049] Determine the corresponding area controller according to the matrix table of the power distribution channel and the area controller shown in Table 1. Among them, the horizontal titles of each sensor or actuator are 4 area controllers, and the vertical titles are the power distribution channels of the electronic fuse switches of the area controllers. For example: In the title of the air-conditioning blower (11), the first 1 represents the front area controller, and the second 1 represents the power distribution channel 1 of the front area controller. Together, it means that the air-conditioning blower needs to be powered by the power distribution channel 1 of the front area controller.

[0050] Table 1 Matrix table of power distribution channel and area controller

[0051]

[0052] The area controller to be woken up can be determined according to the above table.

[0053] S3: Initialize the area controller, and receive the first request instruction, where the first request instruction includes a request for invoking an atomic service and a request for invoking a power distribution channel:

[0054] Specifically, the area controllers involved in this embodiment include: a front area controller, a left area controller, and a right area controller. Therefore, the above area controllers are woken up and receive the first request instruction sent by the vehicle central computing unit.

[0055] The first request instruction includes: a request for invoking an atomic service and a request for invoking a power distribution channel. In this embodiment, the front area controller invokes power distribution channels 11, 13, 15, and 17; the left area controller invokes power distribution channel 22; the right area controller invokes power distribution channel 32.

[0056] S4: The area controller opens the power distribution channel according to the first request instruction to distribute power to the corresponding sensor or actuator.

[0057] In this embodiment, the area controller sends an opening instruction to the intelligent power distribution module of the power distribution channel. The intelligent power distribution module is opened, and the corresponding power distribution channel supplies power to the sensor or actuator.

[0058] It should be noted that the vehicle central computing unit and the area controller in the present invention are remotely controlled, and the interface form can be a request / response interface (Request / Response interface). The communication method is Ethernet SOME / IP or Ethernet DDS.

[0059] Based on the above embodiments, it can be seen that by introducing the concept of atomic services, the functional scenario requirements are decomposed, so that the area controller accurately distributes power to the load, controls the load to execute functions, and thus realizes the functional scenarios required by users.

[0060] In addition, the functional scenario requirements in the present invention are determined according to the user's instructions, and the user's instructions can be sent to the vehicle through means such as the in-vehicle AI voice system, the in-vehicle central control screen, and a mobile terminal (smartphone). The information interaction method between the user and the vehicle is not limited in the present invention. In this embodiment, since the vehicle is stationary and the CCU is in a sleep state, after receiving the user's instruction, the CCU first performs initialization.

[0061] In another embodiment, when the vehicle is running, as Figure 5 shown, after the user sends a new functional scenario requirement, the vehicle central computing unit first determines whether the functional scenario requirement will cause danger. The danger refers to a dangerous situation that may endanger pedestrians, its own driving safety, the safety of other vehicles, etc. For example, when the vehicle speed is greater than 20 km / h, requesting to unlock the door or open the electric tailgate (endangering its own driving safety); when meeting another vehicle at night, requesting to turn on the high beam (endangering the driving safety of others); in heavy rain weather, requesting to turn off the windshield wipers (endangering its own driving safety), etc. Whether a dangerous situation will occur is determined by the vehicle OEM and is not limited in the present invention.

[0062] If a danger will occur, a reminder signal is sent, and the reminder signal includes a reminder to re-determine the functional scenario requirement.

[0063] If no danger will occur, the CCU determines the corresponding atomic services and power distribution channel requirements according to the functional scenario requirements, and updates the required atomic services and power distribution channel requirements in real time.

[0064] According to the updated power distribution channel requirements, the corresponding area controller is determined. If a new area controller needs to be started, the new area controller is further awakened and activated, which is not elaborated in the present invention.

[0065] A second request instruction is sent to the area controller, and the second request instruction includes a request to call or close a power distribution channel.

[0066] The area controller calls or closes the corresponding power distribution channel according to the second request instruction to distribute power to the sensor or actuator corresponding to the power distribution channel.

[0067] Through the above update method, the power distribution channel requirements corresponding to the required atomic services can be updated in real time according to the user's instructions, so as to achieve accurate and flexible power distribution.

[0068] Another embodiment of the present invention provides a power distribution system for a vehicle, as Figure 6As shown, it includes a vehicle CCU (Central Computing Unit) and four regional controllers. The CCU is used to determine the corresponding atomic services and power distribution channel requirements according to the functional scenario requirements. The atomic service is the smallest functional module for realizing the functional scenario requirements; and it is used to determine the corresponding regional controller according to the power distribution channel requirements, and send a first request instruction to the regional controller. The first request instruction includes a request for invoking a power distribution channel.

[0069] The regional controller is used to invoke the corresponding power distribution channel according to the first request instruction to distribute power to the sensors or actuators corresponding to the power distribution channel.

[0070] The CCU in this embodiment includes a Smart PDC Application, which internally stores the power distribution numbers of all vehicle controllers, sensors or actuators, and sensors. According to the calculation results of the central computing unit, it accurately supplies power to the controllers, sensors or actuators, sensors, etc. that need to be turned on for the functional scenario requirements. And an Ethernet switch (ETH Switch), which is used as a communication network connector between the central computing unit CCU and the regional controller. Through the Ethernet switch, the instructions of the vehicle central computing unit are transmitted to the regional controller.

[0071] The regional controller in this embodiment includes a PDC board (Smart Power Distribution Control Board) and an electronic fuse, which are used to perform secondary power distribution functions, receive the power distribution control commands of the vehicle central computing unit, and distribute power to the lower-level loads (sensors or actuators, controllers).

[0072] The power distribution system for vehicles in other embodiments of the present invention applies the above power distribution method, and its technical features are consistent with those of the power distribution method, and will not be elaborated herein.

[0073] Another embodiment of the present invention provides a vehicle equipped with the above power distribution system for vehicles. It can be known that the power distribution system for vehicles in the present invention does not add additional hardware, and is more flexible and convenient.

[0074] It should be noted that the embodiments of the present invention have good implementability and do not limit the present invention in any form. Any person skilled in the art may use the disclosed technical content to change or modify it into an equivalent effective embodiment. However, as long as it does not depart from the technical content of the technical solution of the present invention, any modification, equivalent change or modification made to the above embodiments according to the technical essence of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A power distribution method for a vehicle, characterized in that, it includes: The vehicle central computing unit determines the corresponding atomic services and power distribution channel requirements according to the functional scenario requirements, and the atomic service is the smallest functional module for realizing the functional scenario requirements; Determine the corresponding area controller according to the power distribution channel requirements, and send a first request instruction to the area controller, and the first request instruction includes a request for calling a power distribution channel; The area controller calls the corresponding power distribution channel according to the first request instruction, and distributes power to the sensor or actuator corresponding to the power distribution channel.

2. The power distribution method for a vehicle according to claim 1, characterized in that, The vehicle central computing unit determines the corresponding atomic services according to the functional scenario requirements, determines the required sensors or actuators according to the atomic services, and determines the power distribution channel requirements according to the required sensors or actuators; Determine and wake up the corresponding area controller according to the power distribution channel requirements; The area controller is initialized and receives the first request instruction, and the first request instruction includes a request for calling an atomic service and a request for calling a power distribution channel; The area controller turns on the power distribution channel according to the first request instruction, and distributes power to the corresponding sensor or actuator.

3. The power distribution method for a vehicle according to claim 2, characterized in that, The area controller is initialized, calls the corresponding power distribution channel according to the first request instruction, sends an opening instruction to the intelligent power distribution module of the power distribution channel, the intelligent power distribution module is turned on, and the power distribution channel distributes power to the corresponding sensor or actuator.

4. The power distribution method for a vehicle according to any one of claims 1-3, characterized in that, The vehicle central computing unit determines the corresponding atomic services and power distribution channel requirements according to the functional scenario requirements, and updates the required atomic services and power distribution channel requirements in real time; Determine the corresponding area controller according to the updated power distribution channel requirements, and send a second request instruction to the area controller, and the second request instruction includes a request for calling or closing a power distribution channel; The area controller calls or closes the corresponding power distribution channel according to the second request instruction, and distributes power to the sensor or actuator corresponding to the power distribution channel.

5. The power distribution method for a vehicle according to claim 4, characterized in that, The vehicle central computing unit determines the corresponding atomic services and power distribution channel requirements according to the functional scenario requirements, and determines the required atomic services and power distribution channel requirements to be called or closed; Determine the corresponding area controller according to the required power distribution channel requirements to be called or closed, and send a second request instruction to the area controller, and the second request instruction includes a request for calling or closing a power distribution channel.

6. A power distribution system for a vehicle, characterized in that, The power distribution method for a vehicle according to any one of claims 1-5 is applied.

7. The power distribution system for a vehicle according to claim 6 ， characterized in that, it includes: A vehicle central computing unit and an area controller, The vehicle central computing unit is used to determine corresponding atomic services and power distribution channel requirements according to functional scenario requirements, and the atomic service is the smallest functional module for realizing the functional scenario requirements; and is used to determine a corresponding regional controller according to the power distribution channel requirements, and send a first request instruction to the regional controller, where the first request instruction includes a request for calling a power distribution channel; The regional controller is used to call a corresponding power distribution channel according to the first request instruction to supply power to sensors or actuators corresponding to the power distribution channel.

8. A vehicle, characterized in that, it includes the power distribution system for vehicles as described in claim 6 or 7.

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