Vehicle power management method, integrated vehicle system and vehicle

Abstract

The invention provides a vehicle-mounted machine power management method, an integrated vehicle-mounted machine system and a vehicle, and the method comprises the steps that in a current working mode of the vehicle-mounted machine system, a power management unit obtains a wake-up source signal or state switching information, and determines a target working mode of the vehicle-mounted machine system according to the wake-up source signal or the state switching information, and adjusting the current working mode of the vehicle machine system to the target working mode, obtaining the target operation state of each target module in the target working mode, and adjusting the current operation state of each target module to the target operation state. According to the invention, flexible switching of different modes of the vehicle-mounted terminal system is realized in combination with the real-time working state of the vehicle-mounted terminal system, and the effectiveness, reliability and flexibility of power management of the central control host are improved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and more specifically, to a vehicle power management method, an integrated vehicle system, and a vehicle. Background Art

[0002] The modules in a car's central control unit are typically independent, and power management for each module is decentralized. For example, the IVI host (In-Vehicle Infotainment), T-BOX (Telematics Box) virtual host, CAN gateway, and display are all separate modules, and power management for each module is decentralized.

[0003] However, as the functions of automobile central control units become increasingly integrated and complex, how to consider the power management needs of each module, achieve more reliable, refined and flexible power management, and improve the stability of system operation has become an urgent problem to be solved. Summary of the Invention

[0004] The purpose of this application is to address the deficiencies in the above-mentioned prior art and provide a vehicle computer power management method, an integrated vehicle computer system, and a vehicle, so as to solve the problems in the prior art of vehicle computer power management being unreliable, sophisticated, and inflexible.

[0005] To achieve the above objectives, the technical solutions adopted in this application are as follows: In a first aspect, the present application provides a vehicle power management method, which is applied to an integrated vehicle system, wherein the integrated vehicle system includes multiple target modules and a power management unit, wherein the multiple target modules include: a T-BOX virtual host, an in-vehicle infotainment system host, a CAN gateway, and a BLE Bluetooth key module; The method comprises: In the current operating mode of the vehicle system, the power management unit obtains a wake-up source signal or state switching information, and determines a target operating mode of the vehicle system according to the wake-up source signal or state switching information, the wake-up source signal includes: an ignition signal, a CAN network signal, a text message signal, and a Bluetooth signal, the operating modes of the vehicle system include: a pre-sleep mode, a normal mode, a sleep mode, a standby mode, an abnormal mode, or a deep sleep mode, and the state switching information includes: a state switching condition and a current operating parameter of the vehicle system; Adjusting the current working mode of the vehicle system to the target working mode, and obtaining the target operating state of each target module under the target working mode, wherein the target operating state includes: disabled state, enabled state, dormant state, and standby state; The current operating state of each target module is adjusted to the target operating state.

[0006] Optionally, determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current operating mode is a pre-sleep mode, a sleep mode, a standby mode, or a deep sleep mode, and the wake-up source signal is an ignition signal, determining that the target operating mode of the vehicle system is a normal mode; If the current operating mode is the abnormal mode and the current voltage of the long power supply meets the first state switching condition, the target operating mode is determined to be the normal mode.

[0007] Optionally, determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current operating mode is the normal mode and the wake-up source signal indicates disabling the ignition signal, determining that the target operating mode is the pre-sleep mode; If the current working mode is the standby mode, and the wake-up source signal is a CAN network signal, a text message signal, or a Bluetooth signal, determining that the target working mode is the pre-sleep mode; If the current operating mode is a sleep mode or a deep sleep mode, and the wake-up source signal is a CAN network signal, the target operating mode is determined to be a pre-sleep mode.

[0008] Optionally, determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current working mode is the pre-sleep mode, and the duration of the pre-sleep mode meets the second state switching condition, then the target working mode is determined to be the sleep mode.

[0009] Optionally, determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current operating mode is the normal mode and the current voltage of the long power supply meets the third state switching condition, the target operating mode is determined to be the abnormal mode.

[0010] Optionally, determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current operating mode is the standby mode and the duration of the standby mode meets the fourth state switching condition, determining that the target operating mode is the deep sleep mode; If the current working mode is an abnormal mode, and the duration of the abnormal mode meets the fifth state switching condition, it is determined that the target working mode is a deep sleep mode.

[0011] Optionally, determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current working mode is sleep mode, and the duration of the sleep mode meets the sixth state switching condition, and the T-BOX virtual host, the in-vehicle infotainment system host and the CAN gateway are all in standby state, then the target working mode is determined to be standby mode.

[0012] Optionally, obtaining a target operating state of each target module in the target operating mode includes: Searching the state table corresponding to the target operating mode to obtain the set operating state of each target module; The set operating state of each target module is used as the target operating state of each target module.

[0013] In a second aspect, the present application provides an integrated vehicle system, which includes multiple target modules and a power management unit. The multiple target modules include: a T-BOX virtual host, an in-vehicle infotainment system host, a CAN gateway, and a BLE Bluetooth key module; The power management unit is used to execute the vehicle power management method described in the first aspect.

[0014] In a third aspect, an embodiment of the present application further provides a vehicle, which includes the integrated vehicle-machine system described in the second aspect.

[0015] The beneficial effects of this application are: by classifying the vehicle computer system's operating modes into sleep mode, normal mode, dormant mode, standby mode, abnormal mode, and deep sleep mode, and determining the target operating mode of the vehicle computer system based on a wake-up source signal or state switching information, flexible switching of the vehicle computer system's different modes is achieved in combination with the vehicle computer system's real-time operating status. Furthermore, by presetting the operating status for each operating mode, refined management of mode switching is achieved in the scenario of a centralized vehicle computer system, and the effectiveness and reliability of power management of the central control host are improved.

[0016] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the architecture of an integrated vehicle-mounted system provided in an embodiment of the present application is shown; Figure 2 A power supply architecture diagram of a vehicle system provided by an embodiment of the present application is shown; Figure 3 A flow chart of a vehicle power management method provided by an embodiment of the present application is shown; Figure 4 A schematic diagram showing a vehicle computer function provided by an embodiment of the present application is shown; Figure 5 An application diagram of a vehicle system provided by an embodiment of the present application is shown; Figure 6 An overall schematic diagram of a mode switching provided by an embodiment of the present application is shown; Figure 7 A schematic diagram of a system power-on sequence provided by an embodiment of the present application is shown; Figure 8 A flowchart of adjusting the operating state provided by an embodiment of the present application is shown; Figure 9 A schematic structural diagram of a vehicle power management device provided in an embodiment of the present application is shown; Figure 10 A schematic structural diagram of an electronic device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0020] It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the existence of the features declared thereafter, but does not exclude the addition of other features.

[0021] In the prior art, the power management of each module in the vehicle central control host is implemented by each module. For example, when the power mode of the vehicle computer switches, each module needs to switch and manage the module's operating state according to the switching instruction of the vehicle computer power mode.

[0022] However, with the continuous integration and complexity of automobile central control hosts, it is necessary to comprehensively consider the power management requirements of each module and manage the power of the central control host to improve the flexibility, precision and reliability of power management.

[0023] Based on this, this application proposes a vehicle computer power management method, which realizes the refined management of the central control host power supply and improves the reliability of power management by comprehensively considering the working mode of the vehicle computer system and the power management requirements of each module.

[0024] like Figure 1 The figure shows the architecture of an integrated vehicle-mounted system. The system includes multiple target modules and a power management unit (PMU). The PMU is deployed in the hardware system. The target modules include at least the T-BOX virtual host, the in-vehicle infotainment system host, the CAN gateway, and a Bluetooth key module. The Bluetooth key module can be a BLE (Bluetooth Low Energy) Bluetooth key module. The T-BOX virtual host and the in-vehicle infotainment system host are deployed on the MPU (Micro Processor Unit), while the CAN gateway and BLE Bluetooth key module are deployed on the MCU (Micro Controller Unit).

[0025] Figure 2 This is a power architecture diagram of the vehicle system given in this application, in which the power management unit is connected to each target module and sends instructions to each target module to achieve centralized management of the power supply of each target module.

[0026] Next, combine Figure 3 The vehicle power management method of this application is described as follows: Figure 3 As shown, the method includes: S301. In the current working mode of the vehicle system, the power management unit obtains the wake-up source signal or state switching information, and determines the target working mode of the vehicle system according to the wake-up source signal or state switching information. The wake-up source signal includes: ignition signal, CAN network signal, SMS signal and Bluetooth signal. The working modes of the vehicle system include: pre-sleep mode, normal mode, sleep mode, standby mode, abnormal mode or deep sleep mode. The state switching information includes: state switching conditions and the current working parameters of the vehicle system.

[0027] Optionally, the power management unit is used to monitor and control the power distribution and management of the entire vehicle system to ensure that the vehicle system can operate stably and efficiently in different working modes.

[0028] The wake-up source signal refers to a signal that can wake the vehicle system from low-power mode. The ignition signal can be generated when the vehicle is started. The CAN network signal can be a communication signal within the vehicle's controller area network, used to transmit status and control information about various vehicle components. The SMS signal can be a text message received via the vehicle's onboard communication module. The Bluetooth signal can be a signal from a user's mobile phone or other Bluetooth device. When the wake-up source signal is the ignition signal, the wake-up source signal can further indicate whether the ignition signal is enabled or disabled. The disabled state indicates that the ignition signal is disabled, while the enabled state indicates that the ignition signal is activated and can operate normally.

[0029] Optionally, the state switching information includes state switching conditions and current operating parameters of the vehicle-mounted system. The state switching conditions can be determined by at least one of the following: a vehicle speed change threshold, an engine speed change threshold, a long power supply voltage threshold, a duration threshold of the vehicle's current operating mode, etc. The current operating parameters of the vehicle-mounted system include: the long power supply voltage value, the vehicle speed change value, the engine speed, the duration of the vehicle's current operating mode, and the operating status of each target module in the vehicle-mounted system's current operating mode.

[0030] Optionally, the vehicle computer system can operate in a pre-sleep mode, a normal mode, a sleep mode, a standby mode, an abnormal mode, or a deep sleep mode. Normal mode refers to a mode in which the vehicle computer system operates normally and all functions are available; pre-sleep mode refers to a transitional mode in which the vehicle computer system is preparing to enter sleep mode; sleep mode refers to a mode in which most functions of the vehicle computer system are turned off and the system is in a low-power state; standby mode refers to a mode in which some key functions of the vehicle computer system are guaranteed to operate and can be quickly awakened; abnormal mode may be a mode entered by the vehicle computer system when an abnormal situation is detected, and is usually used for fault diagnosis and processing; deep sleep mode may be a mode in which the vehicle computer system is in a state of even lower power consumption, at which time the vehicle computer system can only retain the most basic functions.

[0031] Optionally, the current operating mode of the vehicle system may be any one of the above operating modes, and the target operating mode may be an operating mode different from the current operating mode and determined based on the wake-up source signal or state switching information.

[0032] For example, assuming that the current working mode of the vehicle system is the sleep mode, after obtaining the ignition signal, the vehicle system can switch to the normal mode, and the target working mode is the normal mode.

[0033] Table 1 is a list of wake-up source signals. Figure 1 The acquisition and wakeup process for each wakeup source signal in Table 1 is described below. When the power management unit acquires the wakeup source signal, it can obtain the ignition signal from the MCU. For example, the ignition signal is represented as KL15. The MCU processes the KL15 signal and controls the MCU_PTC27-SOC_93 pin of the general-purpose input / output interface (GPIO) to wake up the T-BOX virtual host in the vehicle system. The power management unit can also acquire CAN network messages from the MCU and, based on these messages, control the MCU_PTC27-SOC_93 pin of the general-purpose input / output interface (GPIO) to wake up the T-BOX virtual host in the vehicle system.

[0034] Continue to refer to Figure 1 As shown in Table 1, the power management unit can receive SMS messages and wake up the T-BOX virtual host through the SMS module in the MPU. The T-BOX virtual host processes the SMS messages and, when the SMS messages meet the wake-up conditions, controls the MCU_PTE22-SOC_117 pin on the general-purpose input / output (GPIO) interface to wake up the MCU. The power management unit can also receive Bluetooth signals. The vehicle-controlled Bluetooth module receives the Bluetooth signals to wake up the MCU. The MCU then controls the MCU_PTC27-SOC_93 pin on the GPIO interface to wake up the T-BOX virtual host in the vehicle system.

[0035] Table 1 Wake-up source signal list

[0036] S302: Adjust the current working mode of the vehicle system to the target working mode, and obtain the target operating state of each target module in the target working mode. The target operating state includes: disabled state, enabled state, dormant state, and standby state.

[0037] Among them, the disabled state means that the module is turned off and cannot work, the enabled state means that the module is activated and can work normally, the dormant state means that the module is in low-power dormancy and can be awakened, and the standby state means that the module keeps some functions running and waits for further instructions.

[0038] It should be understood that in different working modes, the target modules correspond to different operating states, for example, the screen backlight is disabled in the pre-sleep mode and enabled in the normal mode.

[0039] As a possible implementation, the operating status of each target module can be predefined for different operating modes, and the corresponding relationship between the operating mode and the target module operating status can be stored in the vehicle system. When the vehicle system operating mode changes, the power management unit can adjust the status of the target module based on the saved relationship.

[0040] The target module refers to the modules corresponding to various functions in the vehicle system, including the T-BOX virtual host, the vehicle infotainment system host, the CAN gateway and the BLE Bluetooth key module.

[0041] Reference Figure 4 , is a schematic diagram of a car computer application. The car computer system includes multiple functions, which are respectively Figure 1 The target module in the figure is implemented, where each target module can include at least one target sub-module, each of which is used to implement a function of the vehicle system. For example, the T-BOX virtual host module is used to implement the 4G communication function and positioning function in the figure; the vehicle infotainment system host includes multiple sub-modules, each of which is used to implement Figure 4 The display screen, camera, microphone, amplifier, USB device and other functions in the CAN gateway are used to realize Figure 4 The BLE Bluetooth key module is used to realize the interconnection with terminal devices such as user mobile phones and other functions.

[0042] like Figure 5 As shown in the figure, the vehicle system integrates multiple functions and provides multiple interfaces to the outside world. The vehicle system can communicate with the outside world through multiple interfaces and realize Figure 4 For example, refer to Figure 5 The car system can be connected to the car navigation host and display screen, camera system or other car display devices through the LVDS (Low Voltage Differential Signaling) interface.

[0043] It is worth mentioning that Figure 1 The integration method of the target modules shown is only a possible example. It should be understood that the power management unit can also use sub-modules such as MCU, DSP&A2B (Digital Signal Processor&Automotive AudioBus), various battery modules, IHU (In-Vehicle Infotainment Head Unit, vehicle-specific central processing unit), baseband, GPS (Global Positioning System) and positioning antenna as target modules, and pre-set the operating status of each target module in different working modes.

[0044] S303: Adjust the current operating state of each target module to the target operating state.

[0045] Optionally, the power management unit can switch each target module from its current operating state to a target operating state based on the target operating state corresponding to each operating mode. For example, if switching to sleep mode, the power supply of the relevant module is turned off or the supply voltage is reduced to put it into sleep mode; if switching to enable mode, normal power supply is provided to the module to activate its function.

[0046] In the embodiments of the present application, by classifying the vehicle-mounted system's operating modes into sleep mode, normal mode, dormant mode, standby mode, abnormal mode, and deep sleep mode, and determining the target operating mode of the vehicle-mounted system based on a wake-up source signal or state switching information, flexible switching between different modes of the vehicle-mounted system is achieved in conjunction with the vehicle-mounted system's real-time operating status. Furthermore, by presetting the operating status for each operating mode, refined management of mode switching is achieved in centralized vehicle-mounted system scenarios, and the effectiveness and reliability of power management for the central control host are improved.

[0047] Next, combine Figure 6 The mode switching diagram shown in FIG. 1 is a diagram for explaining the process of switching the working mode in this application in detail. Figure 6 , by turning on the long power supply or restarting the vehicle system to enter the vehicle power-on state, after the vehicle is powered on, the wake-up source signal can be obtained. When the wake-up source signal is the ignition signal, the vehicle system enters the normal mode. When the ignition signal is disabled, the vehicle system enters the pre-sleep mode. As a possible implementation method, you can use Figure 7 The power-on sequence shown powers on the system, and the power-on sequence can be pre-set based on the operating conditions of the peripherals.

[0048] When the target operating mode is the normal mode, the process of determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current operating mode is pre-sleep mode, sleep mode, standby mode or deep sleep mode, and the wake-up source signal is an ignition signal, the target operating mode of the vehicle system is determined to be normal mode.

[0049] When the vehicle system is in pre-sleep mode, sleep mode, standby mode or deep sleep mode, if the wake-up source signal obtained by the power management unit is an ignition signal and the ignition signal is enabled, the MCU can process the ignition signal and determine the target working mode as normal mode.

[0050] If the current operating mode is the abnormal mode and the current voltage of the long power supply meets the first state switching condition, the target operating mode is determined to be the normal mode.

[0051] The vehicle computer system is currently in abnormal mode, indicating that the vehicle computer system has detected some abnormal conditions that may affect normal operation. In this case, the power management unit can continuously monitor the current long power supply voltage value and compare the long power supply voltage value with the first state switching condition. If the current long power supply voltage meets the first state switching condition, the target operating mode is determined to be normal mode.

[0052] Among them, the first state switching condition can be that the voltage value of the long power supply reaches a preset working voltage range or a preset voltage standard. As a possible implementation method, the first state switching condition can be that the voltage value KL30 of the long power supply meets "8.5V <KL30<16.5V”。

[0053] Table 2 shows the operating status of each module in the vehicle system in normal mode. When the target operating mode is determined to be normal mode, the status of each target module can be adjusted to the status shown in Table 2 to complete the switch of the vehicle system to normal mode.

[0054] Table 2 Normal mode working status table

[0055] It should be noted that what is shown in Table 2 above is only a status setting table of some target modules given in this application. The status of other target modules in different working modes can be pre-set by designers based on actual power management requirements. The specific status setting values are not limited in this application.

[0056] When the target operating mode is the pre-sleep mode, the process of determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current operating mode is the normal mode and the wake-up source signal indicates that the ignition signal is disabled, the target operating mode is determined to be the pre-sleep mode.

[0057] Optionally, when the wake-up source signal is an ignition signal and the ignition signal is in a disabled state, the target operating mode may be determined to be a pre-sleep mode.

[0058] For example, suppose a user turns the key to "OFF" after using the vehicle in normal mode, or presses the "Engine Start / Stop" button in the smart start system to shut down the engine. At this point, the vehicle system detects a signal indicating the ignition system is off, known as an "ignition disable signal." The vehicle system recognizes that the current operating mode is normal mode and that it has received the ignition disable signal, so it determines that the target operating mode is pre-sleep mode.

[0059] After determining that the target operating mode is pre-sleep mode, the vehicle system can begin pre-sleep operations, adjusting the state of the target module to the target operating state in pre-sleep mode. For example, this may stop music playback, disable the real-time navigation update function, disconnect Bluetooth, and save the current settings and status information so that it can be quickly restored to the previous state upon the next startup. After completing these operations, the vehicle system may enter sleep mode to reduce energy consumption.

[0060] If the current working mode is the standby mode, and the wake-up source signal is a CAN network signal, a text message signal, or a Bluetooth signal, then the target working mode is determined to be the pre-sleep mode.

[0061] In standby mode, some key functions of the vehicle system remain running and can be quickly awakened, but most non-essential functions are turned off or in low-power state, such as the infotainment system pauses playback but retains the standby interface, and the Bluetooth connection is in a low-power maintenance state.

[0062] Optionally, the CAN network signal can be a communication signal in the vehicle controller local area network, which can transmit the status and control information of various vehicle components; the SMS signal can be a text message received by the vehicle system through the on-board communication module; the Bluetooth signal can be a signal from the user's mobile phone or other Bluetooth device.

[0063] For example, assume the vehicle system is in standby mode, the infotainment system is paused but displays the standby interface, and the Bluetooth connection is in a low-power maintenance state. If the lock status of a vehicle door changes (e.g., the door is unlocked), this state change can be signaled to the vehicle system via the CAN network. After receiving this CAN network signal, the vehicle system, based on pre-set logic, determines the target operating mode as pre-sleep mode. The vehicle system then begins pre-sleep operations, such as turning off the infotainment system's standby interface and further reducing the power consumption of the Bluetooth module, in preparation for fully entering sleep mode.

[0064] In another example, a user can send a remote control text message to the vehicle's control panel via their mobile phone. Upon receiving the text message, the system recognizes that it is currently in standby mode and has received a wake-up signal, and therefore determines that the target operating mode is pre-sleep mode. The system then performs pre-sleep operations, such as suspending some background services and reducing system resource usage, while preparing to process the text message command. After completing the pre-sleep operations, it responds accordingly.

[0065] In another example, a user's phone pairs with the car's head unit via Bluetooth and attempts to connect. Upon detecting the Bluetooth signal, the head unit determines that the target operating mode is pre-sleep mode, based on the current standby mode and the Bluetooth signal as the wakeup source. The head unit then performs pre-sleep operations, such as adjusting system resource allocation to accommodate the Bluetooth connection requirements and shutting down non-essential background processes. Afterward, the Bluetooth connection is established and data exchange begins.

[0066] If the current working mode is the sleep mode or the deep sleep mode, and the wake-up source signal is a CAN network signal, the target working mode is determined to be the pre-sleep mode.

[0067] Alternatively, when the vehicle system is in sleep mode or deep sleep mode and receives a CAN network signal, it can determine the target operating mode as pre-sleep mode. The vehicle system then performs pre-sleep operations, such as turning off the infotainment system display and suspending non-essential background services, while preparing to process the information carried by the CAN network signal. After completing these operations, the vehicle system can further switch to other modes, such as normal mode, as needed to handle specific events.

[0068] Table 3 shows the operating status of each module in the vehicle system in pre-sleep mode. When the target operating mode is determined to be pre-sleep mode, the status of each target module can be adjusted to the status shown in Table 3 to complete the switch of the vehicle system to pre-sleep mode.

[0069] Table 3 Working status table of pre-sleep mode

[0070] When the target operating mode of the vehicle system is the sleep mode, the above-mentioned determination of the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current working mode is the pre-sleep mode, and the duration of the pre-sleep mode meets the second state switching condition, the target working mode is determined to be the sleep mode.

[0071] Optionally, the second state switching condition may be that the duration of the pre-sleep mode is greater than a preset duration threshold. Exemplarily, the preset duration threshold may be three minutes.

[0072] When the vehicle system starts to be in pre-sleep mode, the vehicle system can record and monitor the duration of the pre-sleep mode. When the duration is greater than the preset duration threshold, the target working mode is determined to be sleep mode, and the basic wake-up function is retained according to the sleep mode, and the operating status of each target module is adjusted.

[0073] Table 4 shows the operating status of each module in the vehicle system in sleep mode. When the target operating mode is determined to be sleep mode, the status of each target module can be adjusted to the status shown in Table 4 to complete the switch of the vehicle system to sleep mode.

[0074] Table 4 Working status table of sleep mode

[0075] When the target operating mode of the vehicle system is an abnormal mode, the process of determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current operating mode is the normal mode and the current voltage of the long power supply meets the third state switching condition, the target operating mode is determined to be the abnormal mode.

[0076] Optionally, the third state switching condition may be that the current long power supply voltage is greater than a first preset voltage threshold or less than a second preset voltage threshold, for example, the current long power supply voltage KL30>17V or KL30<7.5V.

[0077] For example, assuming the vehicle system is currently operating in normal mode, and continuous monitoring of the long-duration power supply voltage reveals that it is less than 7.5V, indicating a possible battery failure, the target operating mode can be determined to be abnormal mode. Upon entering abnormal mode, the vehicle system may disable non-critical functions such as the infotainment system display and suspend real-time navigation updates to reduce power consumption. It may also issue an alert to the user, indicating a power supply anomaly requiring inspection and repair.

[0078] Table 5 shows the operating status of each module in the vehicle system in abnormal mode. When the target operating mode is determined to be abnormal mode, the status of each target module can be adjusted to the status shown in Table 5 to complete the switching of the vehicle system to abnormal mode.

[0079] Table 5 Abnormal mode working status table

[0080] As a possible implementation method, the working mode of the vehicle system can also include a power-off mode. When there is a problem with the vehicle's battery, the vehicle can switch to an abnormal mode. When the vehicle is in an abnormal mode and the vehicle's current operating parameters meet the preset conditions, the vehicle's vehicle system can switch from the abnormal mode to the power-off mode.

[0081] For example, if the vehicle is in abnormal mode and the power supply voltage is less than 3.6V or the vehicle's backup battery has been operating for 30 minutes or longer, the vehicle can be switched from abnormal mode to power-down mode. When the vehicle is in power-down mode, it can be powered on again by enabling the long-term power supply and then entering normal mode by restarting the ignition.

[0082] The operating status of each module in power-down mode may be as shown in Table 6. When the vehicle switches from abnormal mode to power-down mode, the operating status of each module may be adjusted to the status shown in Table 6. For example, the operating status of the MCU may be adjusted from the running state to the disabled state.

[0083] Table 6 Working status table of power-down mode

[0084] When the target operating mode is deep sleep mode, the process of determining the target operating mode of the vehicle system according to the wake-up source signal or state switching information includes: If the current working mode is the standby mode and the duration of the standby mode meets the fourth state switching condition, it is determined that the target working mode is the deep sleep mode.

[0085] Optionally, the fourth state switching condition may be a time threshold of the standby mode. Exemplarily, the fourth state switching condition may be that the duration of the standby mode is greater than two days.

[0086] For example, if the vehicle system has been in standby mode for more than two days without any user interaction and no wake-up signal, after 48 hours, the system automatically switches to deep sleep mode, shutting down non-essential functions and retaining only some functions to monitor the vehicle status.

[0087] If the current working mode is the abnormal mode, and the duration of the abnormal mode meets the fifth state switching condition, the target working mode is determined to be the deep sleep mode.

[0088] Optionally, the fifth state switching condition may be a duration threshold of the abnormal mode. For example, the fifth state switching condition may be that the duration of the abnormal mode is greater than 30 minutes.

[0089] For example, suppose the vehicle system enters abnormal mode due to abnormal power supply voltage and continues to attempt to recover but the problem is not resolved. If this continues for 30 minutes, the system automatically switches to deep sleep mode, shutting down non-essential functions and waiting for external intervention to fix the problem.

[0090] Table 7 shows the operating status of each module in the vehicle system in deep sleep mode. When the target operating mode is determined to be deep sleep mode, the status of each target module can be adjusted to the status shown in Table 7 to complete the switch of the vehicle system to deep sleep mode.

[0091] Table 7 Working status table of deep sleep mode

[0092] When the target operating mode of the vehicle system is the standby mode, the process of determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current working mode is sleep mode, and the duration of the sleep mode meets the sixth state switching condition, and the T-BOX virtual host, the in-vehicle infotainment system host and the CAN gateway are all in standby state, then the target working mode is determined to be standby mode.

[0093] Optionally, when the vehicle system enters the sleep mode, the duration of the sleep mode can be continuously detected, and the operating status of each module can be monitored.

[0094] The sixth state switching condition may be that the duration of the sleep mode is greater than a preset sleep mode duration threshold, and the sleep mode duration threshold may be 30 seconds.

[0095] For example, assume the T-BOX virtual host, the in-vehicle infotainment system host, and the CAN gateway are all in standby mode. When sleep mode lasts for 30 seconds, the system detects that the T-BOX virtual host, the in-vehicle infotainment system host, and the CAN gateway are all in standby mode. At this point, the system determines that the target operating mode is standby mode and performs the corresponding switch operation. Once in standby mode, the vehicle system can quickly respond to user operations or external wake-up signals.

[0096] Table 8 shows the operating status of each module in the vehicle system in standby mode. When the target operating mode is determined to be standby mode, the status of each target module can be adjusted to the status shown in Table 8 to complete the switch of the vehicle system to standby mode.

[0097] Table 8 Working status table of standby mode

[0098] Next, the process of obtaining the target operating status of each target module in the target working mode is described. Figure 8 As shown, the above step S302 includes: S801: Query the state table corresponding to the target working mode to obtain the set operating state of each target module.

[0099] Optionally, the state table corresponding to the working mode can refer to Table 2 to Table 8 above. The state table records the set operating state of each target module in the current working mode. For example, Table 8 records that the set operating state of the positioning antenna in standby mode is "disabled".

[0100] S802: Taking the set operating state of each target module as the target operating state of each target module.

[0101] Optionally, the current operating state of each target module is switched to the set operating state, thereby completing the mode switching of the vehicle system.

[0102] For example, assuming that the vehicle system needs to switch from sleep mode to standby mode, the operating state of the MCU can be switched from "running" to "standby", the operating state of the CAN can be switched from "sleep" to "standby", the operating state of the peripheral power supply can be switched from "enable" to "disable", the operating state of the TBOX can be switched from "sleep" to "standby", and the operating state of the IHU can be switched from "sleep" to "standby".

[0103] Continue to refer to Figure 6 This application can also monitor when the MCU is blocked. When the MCU is blocked, the vehicle system can enter abnormal mode or a pre-set safe mode. In safe mode, basic functions can be retained and some advanced functions can be disabled. When the MCU is blocked, it will re-enter the power-on state and enter normal mode through the ignition signal.

[0104] Based on the same inventive concept, an embodiment of the present application also provides a vehicle power management device corresponding to the vehicle power management method. The device can be deployed in a power management unit. Since the principle of solving the problem by the device in the embodiment of the present application is similar to the above-mentioned vehicle power management method in the embodiment of the present application, the implementation of the device can refer to the implementation of the method, and the repeated parts will not be repeated.

[0105] Figure 9 A schematic structural diagram of a vehicle power management device provided in an embodiment of the present application is shown.

[0106] A mode determination module 901 is configured to, in the current operating mode of the vehicle-mounted system, cause the power management unit to obtain a wake-up source signal or state switching information, and determine a target operating mode of the vehicle-mounted system based on the wake-up source signal or state switching information. The wake-up source signal includes an ignition signal, a CAN network signal, a text message signal, and a Bluetooth signal. The operating modes of the vehicle-mounted system include a pre-sleep mode, a normal mode, a sleep mode, a standby mode, an abnormal mode, or a deep sleep mode. The state switching information includes a state switching condition and current operating parameters of the vehicle-mounted system. A state acquisition module 902 is used to adjust the current working mode of the vehicle system to the target working mode and obtain the target operating state of each target module under the target working mode, wherein the target operating state includes: disabled state, enabled state, dormant state, and standby state; The state adjustment module 903 is configured to adjust the current operating state of each target module to the target operating state.

[0107] Optionally, the mode determination module 901 is specifically configured to: If the current operating mode is a pre-sleep mode, a sleep mode, a standby mode, or a deep sleep mode, and the wake-up source signal is an ignition signal, determining that the target operating mode of the vehicle system is a normal mode; If the current operating mode is the abnormal mode and the current voltage of the long power supply meets the first state switching condition, the target operating mode is determined to be the normal mode.

[0108] Optionally, the mode determination module 901 is specifically configured to: If the current operating mode is the normal mode and the wake-up source signal indicates disabling the ignition signal, determining that the target operating mode is the pre-sleep mode; If the current working mode is the standby mode, and the wake-up source signal is a CAN network signal, a text message signal, or a Bluetooth signal, determining that the target working mode is the pre-sleep mode; If the current operating mode is a sleep mode or a deep sleep mode, and the wake-up source signal is a CAN network signal, the target operating mode is determined to be a pre-sleep mode.

[0109] Optionally, the mode determination module 901 is specifically configured to: If the current working mode is the pre-sleep mode, and the duration of the pre-sleep mode meets the second state switching condition, then the target working mode is determined to be the sleep mode.

[0110] Optionally, the mode determination module is specifically configured to: If the current operating mode is the normal mode and the current voltage of the long power supply meets the third state switching condition, it is determined that the target operating mode is the abnormal mode.

[0111] Optionally, the mode determination module 901 is specifically configured to: If the current operating mode is the standby mode and the duration of the standby mode meets the fourth state switching condition, determining that the target operating mode is the deep sleep mode; If the current working mode is an abnormal mode, and the duration of the abnormal mode meets the fifth state switching condition, it is determined that the target working mode is a deep sleep mode.

[0112] Optionally, the mode determination module 901 is specifically configured to: If the current working mode is sleep mode, and the duration of the sleep mode meets the sixth state switching condition, and the T-BOX virtual host, the in-vehicle infotainment system host and the CAN gateway are all in standby state, then the target working mode is determined to be standby mode.

[0113] Optionally, the status acquisition module 902 is specifically configured to: Searching the state table corresponding to the target operating mode to obtain the set operating state of each target module; The set operating state of each target module is used as the target operating state of each target module.

[0114] The embodiments of the present application categorize the vehicle system's operating modes into sleep mode, normal mode, dormant mode, standby mode, abnormal mode, and deep sleep mode, and determine the target operating mode of the vehicle system based on a wake-up source signal or state switching information. This allows for flexible switching between different modes of the vehicle system based on its real-time operating status. Furthermore, by presetting operating states for various operating modes, refined management of mode switching is achieved in centralized vehicle system scenarios, improving the effectiveness and reliability of power management for the central control host.

[0115] Figure 10 A structural schematic diagram of an electronic device provided in an embodiment of the present application is shown, including: a processor 1001, a storage medium 1002 and a bus 1003. The storage medium 1002 stores machine-readable instructions executable by the processor 1001. When the electronic device runs a vehicle power management method such as the one in the embodiment, the processor 1001 communicates with the storage medium 1002 through the bus 1003. The processor 1001 executes the machine-readable instructions and the preamble of the method item of the processor 1001 to execute the steps in the above-mentioned vehicle power management method.

[0116] An embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored. The computer program is executed when a processor is running, and the processor executes the steps in the above-mentioned vehicle power management method.

[0117] In the embodiment of the present application, the computer program can also execute other machine-readable instructions when run by the processor to execute other methods described in the embodiment. For the specific execution method steps and principles, please refer to the description of the embodiment and will not be repeated here.

[0118] The embodiment of the present application further provides a vehicle, the vehicle comprising Figure 1 In the integrated vehicle system shown, the power management unit in the integrated vehicle system is used to execute the steps in the above-mentioned vehicle power management method to achieve integrated management of the vehicle power supply.

[0119] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interface, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0120] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0121] In addition, each functional unit in the embodiments provided in the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0122] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, and other media that can store program code.

[0123] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and are not to be understood as indicating or implying relative importance.

[0124] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The scope of protection of the present application is not limited thereto. Although the present application has been described in detail with reference to the above-described embodiments, those skilled in the art should understand that any person skilled in the art can modify or easily conceive of changes to the technical solutions described in the above-described embodiments within the technical scope disclosed in the present application, or make equivalent replacements for some of the technical features thereof. However, these modifications, changes, or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present application. They should all be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A vehicle power management method, characterized in that: Applied to an integrated vehicle system, the integrated vehicle system includes multiple target modules and a power management unit, the multiple target modules include: T-BOX virtual host, vehicle infotainment system host, CAN gateway and Bluetooth key module; The method comprises: In the current operating mode of the vehicle-mounted system, the power management unit obtains a wake-up source signal or state switching information, and determines a target operating mode of the vehicle-mounted system according to the wake-up source signal or state switching information, wherein the wake-up source signal includes an ignition signal, a CAN network signal, a text message signal, and a Bluetooth signal; the operating modes of the vehicle-mounted system include a pre-sleep mode, a normal mode, a sleep mode, a standby mode, an abnormal mode, or a deep sleep mode; and the state switching information includes a state switching condition and a current operating parameter of the vehicle-mounted system; Adjusting the current working mode of the vehicle system to the target working mode, and obtaining the target operating state of each target module under the target working mode, wherein the target operating state includes: disabled state, enabled state, dormant state, and standby state; The current operating state of each target module is adjusted to the target operating state.

2. The method according to claim 1, characterized in that The determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current operating mode is a pre-sleep mode, a sleep mode, a standby mode, or a deep sleep mode, and the wake-up source signal is an ignition signal, determining that the target operating mode of the vehicle system is a normal mode; If the current operating mode is the abnormal mode and the current voltage of the long power supply meets the first state switching condition, the target operating mode is determined to be the normal mode.

3. The method according to claim 1, characterized in that The determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current operating mode is the normal mode and the wake-up source signal indicates disabling the ignition signal, determining that the target operating mode is the pre-sleep mode; If the current working mode is the standby mode, and the wake-up source signal is a CAN network signal, a text message signal, or a Bluetooth signal, determining that the target working mode is the pre-sleep mode; If the current operating mode is a sleep mode or a deep sleep mode, and the wake-up source signal is a CAN network signal, the target operating mode is determined to be a pre-sleep mode.

4. The method according to claim 1, wherein The determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current working mode is the pre-sleep mode, and the duration of the pre-sleep mode meets the second state switching condition, then the target working mode is determined to be the sleep mode.

5. The method according to claim 1, wherein The determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current operating mode is the normal mode and the current voltage of the long power supply meets the third state switching condition, it is determined that the target operating mode is the abnormal mode.

6. The method according to claim 1, characterized in that The determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current operating mode is the standby mode and the duration of the standby mode meets the fourth state switching condition, determining that the target operating mode is the deep sleep mode; If the current working mode is an abnormal mode, and the duration of the abnormal mode meets the fifth state switching condition, it is determined that the target working mode is a deep sleep mode.

7. The method according to claim 1, characterized in that The determining the target operating mode of the vehicle system according to the wake-up source signal or the state switching information includes: If the current working mode is sleep mode, and the duration of the sleep mode meets the sixth state switching condition, and the T-BOX virtual host, the in-vehicle infotainment system host and the CAN gateway are all in standby state, then the target working mode is determined to be standby mode.

8. The method according to claim 1, characterized in that The acquiring of the target operating state of each target module in the target operating mode includes: Searching the state table corresponding to the target operating mode to obtain the set operating state of each target module; The set operating state of each target module is used as the target operating state of each target module.

9. An integrated vehicle computer system, characterized in that: The integrated vehicle system includes multiple target modules and a power management unit. The multiple target modules include: a T-BOX virtual host, an in-vehicle infotainment system host, a CAN gateway, and a Bluetooth key module; The power management unit is used to execute the vehicle power management method according to any one of claims 1 to 8.

10. A vehicle, characterized in that: The vehicle includes the integrated vehicle-mounted system as claimed in claim 9.

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