Whole vehicle power supply control system and control method based on vehicle use mode

Abstract

The invention discloses a whole vehicle power supply control system and control method based on a vehicle use mode, and relates to the technical field of vehicle low-voltage power supply control. The system comprises a central computing unit and an area controller, wherein the central computing unit integrates control logic and functions of an upper layer and performs power supply management on whole vehicle equipment; the area controller becomes a hub of a bottom layer sensor and an actuator and is used for controlling and executing an equipment power supply in the area; a power supply mode switch and a power supply mode relay are cancelled, the control of the whole vehicle power supply does not need active operation of a user, the user only pays attention to function requirements, and the user experience is improved; the power supply of the equipment is actively identified by the vehicle according to the vehicle use mode and function requirements, and the equipment independently supplies power and is more intelligent; in a certain use scene, only the current equipment related to the current function supplies power, and the current can be cut off for the equipment without function requirements, so that the power consumption of waiting for input when the equipment is in an activation mode or a standby mode is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle low-voltage power supply control, and in particular relates to a vehicle power supply control system and a control method based on a vehicle usage mode. Background Art

[0002] At present, the models designed and developed by major OEMs on the market basically control the power on or off of the vehicle's electrical appliances through the power mode switch located on the dashboard (key switch or button switch such as SSB-Start / Stop Button); the power modes that the driver can switch through the switch include OFF, ACC, IGN, and Start. Different vehicle functions can be used in different power modes. For example, in the OFF state, most vehicle functions cannot be used, and only functions such as remote control unlocking, turning on and off interior lights, and headlights to guide me home are retained. In the ACC power mode, only entertainment functions such as radio and music playback can be used, while functions such as window control and air conditioning are not available. When the power mode is switched to IGN, all electrical appliances in the vehicle are in Active state, power is continuously supplied, and most vehicle functions can be used.

[0003] For example, Chinese patent CN114291015A discloses a vehicle control method, device, vehicle and storage medium. The method includes: when the vehicle mode of the vehicle is a test vehicle mode, obtaining the working state of the vehicle; when the working state is switched to the whole vehicle power-off, real-time monitoring of the control post-processing state of the vehicle; generating a power-off control instruction according to the control post-processing duration and the preset power-off condition, so that each regional power distribution controller controls the power-off of other loads connected thereto except the preset load. The technical solution of the embodiment solves the problem that when the various loads of the vehicle are directly connected to the battery, the whole vehicle cannot sleep because some controllers cannot sleep, and thus cannot enter the low-power consumption mode. It meets the vehicle-level vehicle distribution control requirements when the vehicle is not fully developed, reduces the battery energy consumption and the loss of the vehicle battery due to manual plugging and unplugging, and improves the convenience and practicality of vehicle control in the research and development stage. For example, Chinese patent CN115257589A discloses a method for switching multiple modes of a vehicle, including normal mode, collision mode and towing mode; the normal mode is the default mode, and all functions of the vehicle can be turned on and used normally, and is used for daily use of the vehicle; when the vehicle airbag controller sends a vehicle collision signal, the vehicle enters the collision mode when it receives the signal; when the vehicle power mode is in the power-on state, the brake pedal is pressed and the towing mode switch is triggered, the vehicle enters the towing mode from the normal mode; when the vehicle is in the collision mode, the vehicle performs a normal safety self-check and there is a vehicle start operation, the vehicle enters the mode before the collision mode from the collision mode; when the towing mode switch is turned off, the vehicle enters the normal mode from the towing mode. The mode management can be performed on the entire process of the vehicle during normal driving, collision accidents and subsequent towing, reducing the safety risks of personnel and vehicles.

[0004] like Figure 1 As shown, the basis for realizing the above vehicle control is that the whole vehicle has a corresponding controller to assume the function of vehicle power control (such as BCM or PEPS or body domain DCU). The controller controls the whole vehicle electrical appliances in different working modes by controlling the ACC relay, IGN relay, and power-saving relay in the relay box. The power supply architecture usually uses electromagnetic relays to control large currents with small currents to supply power to the load. Due to the limitations of the relay volume and weight, the maximum current that the relay contacts can carry is limited, generally not exceeding 40A. Therefore, for high-power loads in the vehicle such as EPS (electric power steering controller), EMS (engine control unit), EPB (electronic parking controller), IPB (integrated brake unit), etc., the main power supply (power supply) is directly connected to the battery for normal power. At the same time, another wake-up activation power supply such as IGN power supply is required as the controller's working enable power supply to connect to the controller's internal SBC to control the power-on of the MCU, and then the MCU controls the drive axle to make the motor work.

[0005] As mentioned above, the power control solution needs to add a power mode switch in the cab, and the user needs to switch the power mode according to their own usage needs, and then turn on the corresponding function. From the perspective of customer experience, this operation is redundant. The user does not care about the power mode of the vehicle when using the vehicle. In addition, the switching of the power mode needs to rely on electromagnetic relays (ACC / IGN / power-saving relays). Because of the volume, weight, life, noise and other reasons of the relay, it no longer meets the current smart car requirements for energy consumption and customer experience. In addition, the design of enabling electrical appliances based on the power mode has some usage scenarios where customers do not have this function requirement, and the controller corresponding to this function is always in Active mode, resulting in the problem of high low-voltage power consumption of the whole vehicle. For example, in driving conditions, the power mode is IGN. At this time, the user has no need to open / close the back door, and the electric back door control module (PLG) is always in a power supply state. The power consumption of the controller itself in the active mode is relatively large. When all controllers of the whole vehicle are always in Active mode when there is no use demand, the accumulated low-voltage power consumption of the whole vehicle will directly affect the final driving range of the vehicle. In view of the above problems, the present invention provides a power control strategy based on a regional controller. Summary of the invention

[0006] The purpose of the present invention is to provide a vehicle power control system and control method based on the vehicle usage mode, which provides low-voltage 12V power for electrical appliances at different positions of the vehicle through a regional controller, and controls the power of the application electrical appliances to be turned on or off according to the vehicle usage mode and user functional requirements. This control strategy can reduce the low-voltage power consumption of the vehicle, which can indirectly improve fuel economy and reduce CO2 emissions for fuel vehicles, and can indirectly reduce the power consumption of the vehicle and increase the driving range for new energy vehicles.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] As a first aspect provided by the present invention, the present invention is a vehicle power control system based on a vehicle usage mode, comprising:

[0009] A central computing unit, which integrates a vehicle mode management module, a vehicle control module, and an equipment power control module. The central computing unit is used for power control of all electrical equipment in the vehicle;

[0010] A regional controller is used for I / O connection and signal routing of sensors, actuators, and ECUs in the region; the regional controller is in communication with the central computing unit; an electronic and electrical architecture based on the central computing unit and the regional controller, wherein the central computing unit of the architecture integrates a power control software module (Device Power Management Module) as the power control decision center for all electrical appliances in the vehicle, while the regional controllers distributed in different regions of the vehicle are responsible for I / O connection, power control, and signal routing of sensors, actuators, and ECUs in the region;

[0011] The zone controllers include a rear cabin zone controller, a left cabin zone controller, a right cabin zone controller, and a front cabin zone controller;

[0012] Among them, the vehicle mode management module, vehicle control module, and equipment power control module are application layer software modules located in the central computing unit. The regional controller provides low-voltage 12V power for electrical appliances in different positions of the vehicle. At the same time, it controls the power on or off of the application electrical appliances according to the vehicle's usage mode and user functional requirements. This control strategy can reduce the low-voltage power consumption of the entire vehicle, which can indirectly improve fuel economy and reduce CO2 emissions for fuel vehicles. For new energy vehicles, it can indirectly reduce the power consumption of the entire vehicle and increase the driving range.

[0013] Furthermore, the regional controller is respectively connected to the rear cabin regional controller, the cockpit left regional controller, the cockpit right regional controller, and the front cabin regional controller via Ethernet.

[0014] Furthermore, the power distribution board in the zone controller uses metal oxide semi-conductor field effect transistor MOSFET, HSD and Efuse.

[0015] Furthermore, the vehicle usage mode includes:

[0016] Non-use mode: The vehicle is parked and dormant, and the user has no need to use the vehicle;

[0017] Convenience mode: When the driver unlocks the door and enters the vehicle, the vehicle switches from non-use mode to convenience mode, and the power drive system is unavailable.

[0018] Driving mode: When the driver steps on the brake and switches from P gear to D / R gear at the same time, the vehicle switches from convenience mode to driving mode, the power drive system functions can be used, and the vehicle is in a drivable state.

[0019] As a second aspect provided by the present invention, the present invention is a vehicle power control method based on a vehicle usage mode, the control method is implemented based on the vehicle power control system described in the first aspect, and the control method comprises the following steps:

[0020] Step 1: Set the vehicle usage mode;

[0021] Step 2: Identify vehicle functions that can be used in different vehicle usage modes according to the vehicle function list, and generate a vehicle function-vehicle usage mode mapping table;

[0022] Step 3: Each software module in the central computing unit receives the current vehicle usage mode information, and determines whether the corresponding vehicle function can be turned on in the vehicle usage mode according to the vehicle function-vehicle usage mode mapping table; at the same time, all input conditions are received, and after determining that the corresponding vehicle function is allowed to be turned on according to the input conditions, step 4 is entered;

[0023] Step 4: Get the MOSFET ID of the device corresponding to the vehicle function to be enabled;

[0024] Step 5: Input the MOSFET ID of the device to be turned on to the regional controller via Ethernet, and the regional controller turns on the corresponding MOSFET to power the device.

[0025] According to the usage scenario of the vehicle, the different states of users using the vehicle are divided to form the vehicle usage mode (UsageMode), and the vehicle functions that can be used in different UsageModes are specified. Then, according to the hardware equipment required by the functions, the device power control software module (DevicePowerManagementModule) controls the power on or off of the application electrical appliances. For electrical appliances that have no working requirements under the UsageMode, their power can be cut off to avoid the power consumption of the controller in Active mode or Standby mode, thereby improving the power utilization rate of the whole vehicle, improving the driving range of electric vehicles and the fuel economy of fuel vehicles.

[0026] Furthermore, the column headers of the vehicle function-vehicle usage mode mapping table are: ID, vehicle function, and vehicle usage mode.

[0027] Furthermore, in step 4, the method for obtaining the MOSFET ID of the device includes the following steps:

[0028] Step S41: querying the electrical equipment that needs to be operated to enable the corresponding vehicle function;

[0029] Step S42: transmitting the ID of the power-consuming device that needs to be operated to the device power control module, and the device power control module queries the mapping table between the power-consuming device ID and the power chip MOSFET ID;

[0030] Step S43: Obtain the MOSFET ID corresponding to the electrical device to be turned on, and transmit it to the central computing unit.

[0031] Furthermore, in the step S42, the column headers of the mapping table of the power-consuming device ID and the power chip MOSFET ID are respectively: power-consuming device ID, device, abbreviation, regional controller to which it belongs, and power chip MOSFET ID.

[0032] The present invention has the following beneficial effects:

[0033] 1. The present invention does not have a power mode switch and cancels the traditional power mode relay. The control of the vehicle power does not require active operation by the user. The user only needs to focus on the functional requirements, which improves the user experience.

[0034] 2. The power supply control of electrical equipment is free from the traditional power supply mode control. The power supply of the equipment is actively identified by the vehicle according to the vehicle usage mode and functional requirements. The equipment is independently powered and more intelligent;

[0035] 3. The intelligentization of equipment power supply also reduces the energy consumption of the entire vehicle. In a certain usage scenario, only the current and current function-related devices are powered, and the current can be cut off for devices with no functional requirements, thereby reducing the power consumption of the device in activation mode or standby mode waiting for input.

[0036] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0038] Figure 1 This is a diagram of a traditional equipment power control system;

[0039] Figure 2 This is a diagram of a vehicle power control system based on a vehicle usage mode of the present invention;

[0040] Figure 3 This is the power supply timing diagram of the left front window control of the present invention. DETAILED DESCRIPTION

[0041] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0042] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0043] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0044] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0045] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0046] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0047] like Figure 1As shown, in the traditional device power control method, the controller that assumes the power control function (PEPS or BCM or body domain DCU) first collects the power mode switch signal, and combines other judgment conditions to identify the driver's intention, and controls the opening and closing of the ACC relay, IGN relay, and node relay at the same time, so as to output power to the equipment under the corresponding circuit. At the same time, in order to protect the entire power circuit wire, a fuse is set at the front end of the relay.

[0048] Embodiment 1:

[0049] See also Figure 2 As shown, as the first embodiment provided by the present invention, the present invention is a vehicle power control system based on vehicle usage mode. The present invention is applicable to the advanced electronic and electrical architecture based on central computing unit and regional controller in the automotive industry. The central computing unit of the architecture integrates a power control software module (Device Power Management Module) as the power control decision center of all electrical appliances in the vehicle, while the regional controllers distributed in different areas of the vehicle are responsible for the I / O connection, power control and signal routing functions of sensors, actuators and ECUs in the area.

[0050] As an embodiment provided by the present invention, preferably, the vehicle power control system based on the vehicle usage mode includes:

[0051] A central computing unit, which integrates a vehicle mode management module, a vehicle control module, and an equipment power control module, and is used for power control of all electrical equipment in the vehicle;

[0052] A regional controller is used for I / O connection and signal routing of sensors, actuators, and ECUs in the region; the regional controller is in communication with the central computing unit; an electronic and electrical architecture based on the central computing unit and the regional controller, wherein the central computing unit of the architecture integrates a power control software module (Device Power Management Module) as the power control decision center for all electrical appliances in the vehicle, while the regional controllers distributed in different regions of the vehicle are responsible for I / O connection, power control, and signal routing of sensors, actuators, and ECUs in the region;

[0053] The zone controllers include a rear cabin zone controller, a left cabin zone controller, a right cabin zone controller, and a front cabin zone controller;

[0054] Among them, the vehicle mode management module, vehicle control module, and equipment power control module are application layer software modules located in the central computing unit. The regional controller provides low-voltage 12V power for electrical appliances in different positions of the vehicle. At the same time, it controls the power on or off of the application electrical appliances according to the vehicle's usage mode and user functional requirements. This control strategy can reduce the low-voltage power consumption of the entire vehicle, which can indirectly improve fuel economy and reduce CO2 emissions for fuel vehicles. For new energy vehicles, it can indirectly reduce the power consumption of the entire vehicle and increase the driving range.

[0055] As an embodiment provided by the present invention, preferably, the regional controller is respectively connected to the rear cabin regional controller, the left cabin regional controller, the right cabin regional controller, and the front cabin regional controller via Ethernet. Based on such an architecture, the central computing unit integrates most of the upper-layer control logic and functions of the vehicle, and the regional controllers distributed in different positions of the vehicle become the hub of the underlying sensors and actuators. At the same time, in this invention, the central computing unit manages the power supply of the vehicle equipment, while the regional controller is responsible for the control and execution of the power supply of the equipment in the area.

[0056] As an embodiment provided by the present invention, preferably, the power distribution board in the zone controller adopts MOSFET (metal oxide semiconductor field effect transistor), 5HSD (high side driver chip) and Efuse (electronic smart fuse); the power distribution board in the zone controller adopts MOSFET, HSD and Efuse instead of traditional fuses and relays, thereby realizing short circuit protection, overcurrent protection, overvoltage protection, reverse polarity protection, wiring harness system fault diagnosis, power self-recovery after fault elimination and other characteristics, thereby improving the functional safety level of the electrical system.

[0057] As an embodiment provided by the present invention, preferably, the vehicle usage modes are divided into the following vehicle usage modes (UsageMode) according to the usage scenarios of the vehicle:

[0058] Abandon mode: In this mode, the vehicle is parked and dormant. The user has no need to use the vehicle. Only a few functions can be used, such as alarm and remote control.

[0059] Convenience mode: When the driver unlocks the door and enters the vehicle, the driver can switch from Abandon mode to this mode. In this mode, most vehicle functions except the power system functions can be used, such as audio and video entertainment, doors and windows, air conditioning, etc., but these functions can only respond after being triggered by the user;

[0060] Driving mode: When the driver steps on the brake and switches from P gear to D / R gear at the same time, the vehicle mode switches from Convenice to Driving. At this time, the power drive system function can be used and the vehicle is in a drivable state.

[0061] Embodiment 2:

[0062] As a second embodiment provided by the present invention, the present invention is a vehicle power control method based on a vehicle usage mode, the control method is implemented based on the vehicle power control system described in the first embodiment, and the control method includes the following steps:

[0063] Step 1: Set the vehicle usage mode;

[0064] Step 2: Identify vehicle functions that can be used in different vehicle usage modes according to the vehicle function list, and generate a vehicle function-vehicle usage mode mapping table;

[0065] Step 3: Each software module in the central computing unit receives the current vehicle usage mode information, and determines whether the corresponding vehicle function can be turned on in the vehicle usage mode according to the vehicle function-vehicle usage mode mapping table; at the same time, all input conditions are received, and after determining that the corresponding vehicle function is allowed to be turned on according to the input conditions, step 4 is entered;

[0066] Step 4: Get the MOSFET ID of the device corresponding to the vehicle function to be enabled;

[0067] Step 5: Input the MOSFET ID of the device to be turned on to the regional controller via Ethernet, and the regional controller turns on the corresponding MOSFET to power the device.

[0068] According to the usage scenario of the vehicle, the different states of users using the vehicle are divided to form the vehicle usage mode (UsageMode), and the vehicle functions that can be used in different UsageModes are specified. Then, according to the hardware equipment required by the function, the device power control software module (DevicePowerManagementModule) controls the power on or off of the application electrical appliances. For electrical appliances that have no working requirements under the UsageMode, their power can be cut off to avoid the power consumption of the controller in Active mode or Standby mode, thereby improving the power utilization rate of the whole vehicle, improving the driving range of electric vehicles and the fuel economy of fuel vehicles.

[0069] As another embodiment provided by the present invention, preferably, the list headers of the whole vehicle function-vehicle usage mode mapping table are: ID, vehicle function, vehicle usage mode, and the vehicle functions that can be used in different vehicle modes are identified according to the whole vehicle function list, and a mapping table of functions and vehicle modes is formulated. The whole vehicle function-vehicle usage mode mapping table is shown in Table 1:

[0070] Table 1: Vehicle function-vehicle usage mode mapping table

[0071]

[0072] According to the vehicle function-vehicle usage mode mapping table, each software module located in the central computing unit needs to receive the current vehicle mode information, determine whether the function can be turned on in this mode and receive all input conditions at the same time. After determining that the function can be turned on, it is first necessary to query the hardware devices that support the realization of its own functions, and tell the device power module the corresponding device ID. The device power module queries the mapping table between the device and the power chip, and inputs the MOSFET ID corresponding to the device to be turned on to the left area controller of the cockpit through Ethernet. The left area controller of the cockpit turns on the corresponding MOSFET to power the device.

[0073] As an embodiment provided by the present invention, preferably, in step 4, the method for obtaining the MOSFET ID of the device includes the following steps:

[0074] Step S41: querying the electrical equipment that needs to be operated to enable the corresponding vehicle function;

[0075] Step S42: transmitting the ID of the power-consuming device that needs to be operated to the device power control module, and the device power control module queries the mapping table between the power-consuming device ID and the power chip MOSFET ID;

[0076] Step S43: Obtain the MOSFET ID corresponding to the electrical device to be turned on, and transmit it to the central computing unit.

[0077] As an embodiment provided by the present invention, preferably, in the step S42, the column headers of the mapping table of the power device ID and the power chip MOSFET ID are: power device ID, device, abbreviation, regional controller, power chip ID, and the mapping table of the power device ID and the power chip MOSFET ID is shown in Table 2:

[0078] Table 2: Mapping table of power device ID and power chip MOSFET ID

[0079]

[0080]

[0081] Through the above technical solution, the power supply of each device can be individually controlled according to the vehicle usage mode. When there is a functional requirement, the power supply of the device related to the function can be turned on accordingly, thereby avoiding the device being in Active mode or Standby mode for a long time when there is no usage demand, thereby reducing energy consumption.

[0082] Embodiment three:

[0083] As another embodiment provided by the present invention, preferably, for example, the following vehicle mode management module, vehicle control module, and device power control module are all application layer software modules located in the central computing unit. When the driver operates the left front window switch, the power supply timing diagram for this function is as follows: Figure 3 As shown: when the driver enters the vehicle, the vehicle mode management module located in the central computing unit controls the vehicle's usage mode to switch from Abandon to Convenience, and broadcasts the current vehicle usage mode to all modules of the vehicle. When the driver operates the left front window switch, the window control software module located in the central computing unit recognizes the current vehicle mode and the driver's operation of opening the left front window, and then comprehensively judges and queries the device ID that needs to be supported by the left front window control function, and gives the device ID that needs to be powered to the device power control software module located in the central computing unit. The device power control software module queries the mapping table between the device and the power chip to obtain the MOSFET ID of the power chip that needs to be turned on, and inputs the MOSFET ID of the power chip that needs to be turned on to the left area controller of the cabin, and the left area controller of the cabin executes the corresponding power circuit conduction.

[0084] A vehicle power control system and control method based on vehicle usage mode has obvious advantages over the existing power mode switching switch (Start / Stop Button) and power mode relay (ACC / IGN / power saving) to control the power supply of vehicle electrical equipment:

[0085] 1. The invention cancels the power mode switch and the traditional power mode relay. The control of the vehicle power does not require active operation by the user. The user only needs to focus on the functional requirements, which improves the user experience. 2. The power control of electrical equipment is free from the traditional power mode control. The power supply of the equipment is actively identified by the vehicle according to the vehicle usage mode and functional requirements. The equipment is independently powered, which is more intelligent.

[0086] 3. The intelligentization of equipment power supply also reduces the energy consumption of the entire vehicle. In a certain usage scenario, only the current and current function-related devices are powered, and the current can be cut off for devices with no functional requirements, thereby reducing the power consumption of the device in activation mode or standby mode waiting for input.

[0087] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0088] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A vehicle power control system based on vehicle usage mode, characterized in that: include: A central computing unit, which integrates a vehicle mode management module, a vehicle control module, and an equipment power control module, and is used for power control of all electrical equipment in the vehicle; A regional controller, which is used for I / O connection and signal routing of sensors, actuators, and ECUs in the region; the regional controller is communicatively connected to the central computing unit; The zone controllers include a rear cabin zone controller, a left cabin zone controller, a right cabin zone controller, and a front cabin zone controller; Among them, the vehicle mode management module, the vehicle control module, and the equipment power control module are application layer software modules located in the central computing unit.

2. A vehicle power control system based on vehicle usage mode according to claim 1, characterized in that: The regional controller is respectively connected to the rear cabin regional controller, the left cabin regional controller, the right cabin regional controller, and the front cabin regional controller through Ethernet.

3. The vehicle power control system based on vehicle usage mode according to claim 1, characterized in that: The power distribution board in the zone controller uses MOSFET, HSD and Efuse.

4. The vehicle power control system based on vehicle usage mode according to claim 1, characterized in that: The vehicle usage modes include: Non-use mode: The vehicle is parked and dormant, and the user has no need to use the vehicle; Convenience mode: When the driver unlocks the door and enters the vehicle, the vehicle switches from non-use mode to convenience mode, and the power drive system is unavailable. Driving mode: When the driver steps on the brake and switches from P gear to D / R gear at the same time, the vehicle switches from convenience mode to driving mode, the power drive system functions can be used, and the vehicle is in a drivable state.

5. A vehicle power control method based on vehicle usage mode, characterized in that: The control method is implemented based on the vehicle power control system according to any one of claims 1 to 4, and the control method comprises the following steps: Step 1: Set the vehicle usage mode; Step 2: Identify vehicle functions that can be used in different vehicle usage modes according to the vehicle function list, and generate a vehicle function-vehicle usage mode mapping table; Step 3: Each software module in the central computing unit receives the current vehicle usage mode information, and determines whether the corresponding vehicle function can be turned on in the vehicle usage mode according to the vehicle function-vehicle usage mode mapping table; at the same time, all input conditions are received, and after determining that the corresponding vehicle function is allowed to be turned on according to the input conditions, step 4 is entered; Step 4: Get the MOSFET ID of the device corresponding to the vehicle function to be enabled; Step 5: Input the MOSFET ID of the device to be turned on to the regional controller via Ethernet, and the regional controller turns on the corresponding MOSFET to power the device.

6. A vehicle power control method based on vehicle usage mode according to claim 5, characterized in that: The column headers of the vehicle function-vehicle usage mode mapping table are: ID, vehicle function, and vehicle usage mode.

7. A vehicle power control method based on vehicle usage mode according to claim 5, characterized in that: In step 4, the method for obtaining the MOSFET ID of the device includes the following steps: Step S41: querying the electrical equipment that needs to be operated to enable the corresponding vehicle function; Step S42: transmitting the ID of the power-consuming device that needs to be operated to the device power control module, and the device power control module queries the mapping table between the power-consuming device ID and the power chip MOSFET ID; Step S43: Obtain the MOSFET ID corresponding to the electrical device to be turned on, and transmit it to the central computing unit.

8. A vehicle power control method based on vehicle usage mode according to claim 7, characterized in that: In the step S42, the column headers of the mapping table of the power-consuming device ID and the power chip MOSFET ID are respectively: power-consuming device ID, device, abbreviation, regional controller to which it belongs, and power chip MOSFET ID.

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