Vehicle wake-up system, method and device, controller and storage medium

Abstract

The invention relates to a vehicle awakening system, method and device, a controller and a storage medium. The system comprises a controller, a latch and a power management chip, the latch and the power management chip are respectively connected with the controller, the latch is connected with at least one wake-up source, the power management chip is connected with the wake-up source, the power management chip is used for sending a power-on signal to the controller when receiving a wake-up signal sent by the wake-up source, and the power-on signal is sent to the controller when receiving the wake-up signal sent by the wake-up source. The latch is used for recording the signal state of the wake-up source, and the controller is used for reading the signal state of the wake-up source recorded in the latch when receiving the power-on signal, determining a target wake-up source according to the signal state of the wake-up source, and executing a corresponding wake-up processing flow according to the target wake-up source. By adopting the method, the wake-up source can be accurately identified, so that the corresponding wake-up process is executed based on the accurate wake-up source.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a vehicle wake-up system, method, apparatus, controller, and storage medium. Background Technology

[0002] Vehicle wake-up is the process by which a vehicle switches from a low-power sleep state to a normal operating state. To balance sleep power consumption and functional response, the vehicle control system needs to start quickly when a wake-up source is triggered and accurately identify the cause of the wake-up. Therefore, a reliable wake-up mechanism is a necessary prerequisite for the stable operation of the vehicle's electronic systems.

[0003] Traditional vehicle wake-up technology typically uses an elimination method to identify the cause of wake-up after the system is woken up. By eliminating untriggered wake-up signals, the scope is gradually narrowed down, and the cause of wake-up is finally determined.

[0004] However, traditional technologies that rely on elimination and polling one by one can easily lead to misjudgment of the wake-up reason, which can ultimately affect the execution of subsequent wake-up processes. Summary of the Invention

[0005] Therefore, it is necessary to provide a vehicle wake-up system, method, device, controller, and storage medium that can accurately identify the wake-up source in order to address the above-mentioned technical problems.

[0006] In a first aspect, this application provides a vehicle wake-up system, including a controller and a latch and a power management chip respectively connected to the controller. The latch is connected to a wake-up source, and the power management chip is connected to the wake-up source. The wake-up source includes at least one [unspecified component]. The power management chip is used to send a power-on signal to the controller when it receives a wake-up signal from the wake-up source; The latch is used to record the signal state of the wake-up source; The controller is used to read the signal status of the wake-up source recorded in the latch when it receives the power-on signal, determine the target wake-up source based on the signal status of the wake-up source, and execute the corresponding wake-up process based on the target wake-up source.

[0007] In one embodiment, the controller is configured to identify the wake-up source whose signal state is valid as the target wake-up source based on the signal state of the wake-up source.

[0008] In one embodiment, the system further includes a power monitoring chip connected to both the battery and the controller. The power monitoring chip is pre-configured with a low-voltage wake-up threshold that matches the battery type; When the target wake-up source is a first-type wake-up source, the controller notifies the communication module to report the corresponding wake-up event, and re-enters the sleep state after the event is reported in order to execute the wake-up process. The first-type wake-up source includes a power monitoring chip and a CAN transceiver. The power monitoring chip sends a low-voltage wake-up signal to the latch when it detects that the battery voltage is lower than the low-voltage wake-up threshold. The CAN transceiver sends a bus wake-up signal to the latch.

[0009] In one embodiment, the controller is further configured to control the wake-up of the autonomous driving module and the vehicle controller and execute the wake-up process when the wake-up source is a second type of wake-up source. The second type of wake-up source includes a communication module and a start button module. The communication module is configured to send a remote wake-up signal to the latch, and the start button module is configured to send a start wake-up signal to the latch.

[0010] In one embodiment, the power management chip is also connected to the enable pin of the latch, and the power management chip is also used to control the latch to be in a locked state when it receives a wake-up signal sent by any one or more wake-up sources.

[0011] Secondly, this application provides a vehicle wake-up method applied to a controller, wherein the controller is connected to a latch, and the latch is connected to at least one wake-up source, the method comprising: Upon receiving a power-on signal, read the signal status of the wake-up source recorded in the latch; The target wake-up source that triggers the wake-up is determined based on the signal status of the wake-up source. The corresponding wake-up process is executed based on the target wake-up source.

[0012] In one embodiment, the controller is also connected to a communication module, and the vehicle wake-up method further includes: Upon receiving a power-on signal, the control wakes up the communication module; The corresponding wake-up process is executed based on the target wake-up source, including: When the target wake-up source is a first type of wake-up source, the communication module is notified to upload the corresponding wake-up event, and the sleep state is entered after the corresponding wake-up event is uploaded. When the target wake-up source is a second type of wake-up source, control the wake-up of the autonomous driving module and the vehicle controller; The first type of wake-up source includes a power monitoring chip and a CAN transceiver, while the second type of wake-up source includes a communication module and a start button module. The power monitoring chip is also connected to the battery. When the power monitoring chip detects that the battery voltage is lower than the low-voltage wake-up threshold, it sends a low-voltage wake-up signal to the latch. The CAN transceiver is used to send a bus wake-up signal to the latch. The communication module is used to send a remote wake-up signal to the latch. The start button module is used to send a start wake-up signal to the latch.

[0013] Thirdly, this application provides a vehicle wake-up device, which is applied to a controller, the controller is connected to a latch, and the latch is connected to at least one wake-up source. The method includes: The read module is used to read the signal status of the wake-up source recorded in the latch when a power-on signal is received; The determination module is used to determine the target wake-up source that triggers the wake-up based on the signal state of the wake-up source. The wake-up module is used to execute the corresponding wake-up process based on the target wake-up source.

[0014] Fourthly, this application provides a controller, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the vehicle wake-up method provided in any embodiment of the second aspect of this application.

[0015] Fifthly, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the vehicle wake-up method provided in any embodiment of the second aspect of this application.

[0016] The aforementioned vehicle wake-up system, method, apparatus, controller, and storage medium, through a power management chip receiving a wake-up signal from a wake-up source, send a power-on signal to the controller. A latch records the signal state of the wake-up source. Upon receiving the power-on signal, the controller reads the recorded signal state from the latch and determines the target wake-up source based on this state. This allows for precise differentiation of different wake-up sources and the execution of differentiated wake-up operations, avoiding unnecessary module power-ups and system operation. Therefore, this application, by adding a latch to the circuit to latch and hold the wake-up signal, can accurately identify the wake-up source, effectively solving the problems of misjudgment and missed judgment of wake-up causes in traditional technologies, avoiding false wake-ups caused by incorrect wake-up source identification, and improving the accuracy and reliability of vehicle wake-up control. Attached Figure Description

[0017] Figure 1 This is a circuit diagram of the vehicle wake-up system in some embodiments; Figure 2 The circuit diagrams for the vehicle wake-up system are shown in some other embodiments; Figure 3 This is a flowchart illustrating the execution of a corresponding wake-up process based on a target wake-up source in some embodiments; Figure 4 This is a flowchart illustrating the vehicle wake-up method in some other embodiments; Figure 5 This is a structural block diagram of the vehicle wake-up device in some embodiments; Figure 6 This is a diagram of the internal structure of the controller in some embodiments. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0019] In a first aspect, this application provides a vehicle wake-up system 100, such as Figure 1 As shown, the vehicle wake-up system 100 includes a controller 101 and a latch 102 and a power management chip 103 respectively connected to the controller 101. The latch 102 is connected to a wake-up source 104, and the power management chip 103 is connected to the wake-up source 104. The wake-up source 104 includes at least one. The power management chip 103 is used to send a power-on signal to the controller 101 when it receives a wake-up signal sent by the wake-up source 104. The latch 102 is used to record the signal state of the wake-up source 104. The controller 101 is used to read the signal state of the wake-up source 104 recorded in the latch 102 when it receives the power-on signal, determine the target wake-up source according to the signal state of the wake-up source 104, and execute the corresponding wake-up processing flow according to the target wake-up source.

[0020] The vehicle wake-up system 100 is used to receive external wake-up signals, identify the wake-up source, and execute the corresponding wake-up logic when the vehicle is in sleep mode.

[0021] The controller 101 is the core processing unit of the vehicle control system. After being woken up and powered on by the power management chip 103, it reads the wake-up source status recorded in the latch 104, identifies the target wake-up source that triggered the wake-up, and then executes the corresponding wake-up processing flow based on the target wake-up source. The controller 101 can be an MCU (Microcontroller Unit), an ECU (Electronic Control Unit), or a VCU (Vehicle Control Unit).

[0022] Latch 102 is a type of pulse-level sensitive storage cell circuit that can change its state under the influence of a specific input pulse level. Latching refers to temporarily storing a signal to maintain a certain level state. The primary function of a latch is buffering, used for real-time latching and maintaining the signal state of the wake-up source, ensuring that the instantaneous wake-up signal is recorded and not lost, so that the controller 101 can accurately read it.

[0023] Specifically, the data input terminal of latch 102 is connected to wake-up source 104, and the data output terminal is connected to controller 101.

[0024] The power management chip 103 is responsible for the power supply management of the whole vehicle. It is used to monitor the wake-up signal. When the wake-up signal is detected, it outputs a power-on signal to the controller 101 to wake up the controller and make it enter the working state from the sleep state.

[0025] The wake-up source 104 is a signal source that can trigger the vehicle to switch from sleep mode to working mode. The target wake-up source refers to the wake-up source that actually triggers the wake-up action this time, which is the valid wake-up source that the controller 101 reads and confirms from the latch 104.

[0026] Specifically, when the vehicle is in a dormant state, the controller 101 is powered down or in sleep mode, and the power management chip 103 is in a monitoring state. When one or more wake-up sources 104 generate a wake-up signal, the wake-up signal is simultaneously sent to the power management chip 103 and the latch 102. After detecting the wake-up signal, the power management chip 103 outputs a power-on signal to the controller 101, causing the controller 101 to start. At the same time, the latch 102 latches and retains the signal state of the wake-up source 104, preventing it from being lost due to signal disappearance. After the controller 101 starts, it directly reads the signal state stored in the latch 102.

[0027] Furthermore, based on the latched signal state of the wake-up source, the controller 101 can accurately determine the target wake-up source without needing to use an elimination polling method, thus improving the accuracy and efficiency of wake-up source identification. The controller 101 then executes the wake-up processing logic corresponding to the identified target wake-up source, performing differentiated wake-up.

[0028] In one embodiment, the controller 101 is used to select the wake-up source 104 whose signal state is valid as the target wake-up source based on the signal state of the wake-up source 104.

[0029] The effective state refers to the signal state that can trigger the vehicle to wake up. This application can be preset during the design stage through hardware circuit configuration or controller program preset, for example, setting a high level to represent an effective state or a low level to represent an effective state.

[0030] After startup, the controller 101 reads the signal status of each wake-up source 104 recorded in the latch 102, determines whether the signal of each wake-up source 104 is valid, and determines the wake-up source 104 with a valid signal status as the target wake-up source for triggering vehicle wake-up this time.

[0031] In one embodiment, please refer to Figure 2The vehicle wake-up system also includes a power monitoring chip 105, which is connected to the battery 106 and the controller 101. The power monitoring chip 105 is pre-configured with a low-voltage wake-up threshold that matches the type of the battery 106. The controller 101 is used to notify the communication module 107 to report the corresponding wake-up event when the target wake-up source is a first type of wake-up source, and to re-enter the sleep state after the event is reported in order to execute the wake-up process. The first type of wake-up source includes the power monitoring chip 105 and the CAN transceiver 108. The power monitoring chip 105 is used to send a low-voltage wake-up signal to the latch 102 when it detects that the voltage of the battery 106 is lower than the low-voltage wake-up threshold. The CAN (Controller Area Network) transceiver 108 is used to send a bus wake-up signal to the latch 102.

[0032] Among them, the power monitoring chip 105 is a chip used to monitor the voltage of the vehicle battery 106 in real time. When the voltage of the battery 106 is lower than the low voltage wake-up threshold, it can output a low voltage wake-up signal to realize low voltage alarm wake-up.

[0033] Battery 106 is the vehicle's power supply, providing power to the entire vehicle and the vehicle wake-up system 100, and is the object monitored by the power monitoring chip.

[0034] The communication module 107 is responsible for wireless communication between the vehicle and the backend or external devices. It is used to report wake-up events and remotely notify the reason for wake-up.

[0035] The CAN transceiver 108 is a CAN bus communication interface circuit used to receive wake-up commands on the CAN bus and output bus wake-up signals to the latch.

[0036] Specifically, the power monitoring chip 105 is connected to both the battery 106 and the controller 101. The controller 101 first determines the type of the target wake-up source. When the target wake-up source is a first-type wake-up source, the controller 101 controls the communication module 107 to report the corresponding wake-up event, and after reporting, re-enters sleep mode, completing the wake-up process. The first-type wake-up source includes the power monitoring chip 105 and the CAN transceiver 108. When the power monitoring chip 105 detects that the battery 106 voltage is below the low-voltage wake-up threshold, it sends a low-voltage wake-up signal to the latch 102, and the CAN transceiver 108 sends a bus wake-up signal to the latch 102. The wake-up event may include information such as the type of wake-up signal, the type of wake-up source, and the wake-up time.

[0037] Specifically, the power monitoring chip 105 is pre-configured with a corresponding low-voltage wake-up threshold based on the type of battery in the current vehicle. The battery type refers to, for example, lead-acid batteries and lithium batteries. This application determines the corresponding low-voltage wake-up threshold based on different battery types and pre-configures it in the power monitoring chip 105. Subsequent low-voltage detection based on the corresponding low-voltage wake-up threshold allows the same hardware circuit to be adapted to different vehicle models.

[0038] This application implements low-voltage wake-up and alarm by adding a power monitoring chip 105, and focuses on the power monitoring chip 105 and the CAN transceiver. The first type of wake-up source immediately returns to sleep state after completing the event reporting, shortening the time the system is in a high-power operation state, while ensuring that low-voltage anomalies and bus wake-up events can be reported and recorded in a timely manner.

[0039] In one embodiment, please continue to refer to Figure 2 The controller 101 is also used to control the wake-up of the autonomous driving module 109 and the vehicle controller 110 when the wake-up source 104 is a second type of wake-up source, and to execute the wake-up process. The second type of wake-up source includes a communication module 107 and a start button module 111. The communication module 107 is used to send a remote wake-up signal to the latch 102, and the start button module 111 is used to send a start wake-up signal to the latch 103.

[0040] The autonomous driving module 109 is the core control unit in the vehicle that enables autonomous driving and assisted driving functions, and is used for autonomous driving-related perception and control. The autonomous driving module 109 is only awakened when autonomous driving is needed, and otherwise remains in sleep mode to reduce power consumption.

[0041] The vehicle controller 110 is a general term for the controllers on a vehicle used to control the vehicle's operation, power, body, chassis, and other functions. After being activated, the vehicle controller 110 is responsible for starting up the vehicle's functions, initializing the system, and controlling normal driving.

[0042] The communication module 107 is a wireless communication module used to receive remote commands, generate remote wake-up signals, and transmit them to the latch 102.

[0043] The start button module 111 is a circuit module that includes a vehicle start button. When the user presses the start button, a start wake-up signal is generated and transmitted to the latch 102.

[0044] Specifically, when the controller 101 determines that the target wake-up source is a second type of wake-up source, it controls the wake-up of the autonomous driving module 109 and the vehicle controller 110 to complete the corresponding wake-up process. The second type of wake-up source includes a communication module 107 and a start button module 111. The communication module 107 sends a remote wake-up signal to the latch 102, and the start button module 111 sends a start wake-up signal to the latch 102.

[0045] For details, please refer to Figure 3 , Figure 3 This is a schematic diagram illustrating the specific process of executing the corresponding wake-up processing flow based on the target wake-up source in one embodiment. Figure 3 In the process, the controller 101 is awakened when it receives a power-on signal. After being awakened, the controller 101 first activates the communication module 107 to further identify the type of the target wake-up source. If the target wake-up source is a low-voltage wake-up or a collision wake-up, it is determined to be a first-type wake-up source. Low-voltage wake-up refers to the wake-up signal sent by the power monitoring chip 105, and collision wake-up refers to the bus wake-up signal sent by the CAN transceiver. When the target wake-up source is a first-type wake-up source, the controller notifies the communication module 107 to upload the corresponding wake-up event. After the communication module 107 completes uploading the corresponding wake-up event, the controller enters a sleep state. If the corresponding wake-up event has not been uploaded, the controller continues to notify the communication module 107 to upload the corresponding wake-up event until the upload is successful.

[0046] Furthermore, when the controller 101 identifies the target wake-up source as a second type of wake-up source, it controls the wake-up of the autonomous driving module 109. Here, SMS wake-up represents a remote wake-up command sent by the communication module 107.

[0047] Specifically, when the target wake-up source is an SMS wake-up signal sent by the communication module 107, a request to query SMS verification is first sent to the communication module 107. When the SMS verification is successful, the autonomous driving module is then woken up, and the system-on-a-chip is further activated. When the autonomous driving module is successfully woken up, it enters normal working state.

[0048] When the target wake-up source is the start button module 111, the vehicle controller 110 and the autonomous driving module 109 are woken up. If the autonomous driving module 109 is successfully woken up, it enters the normal working state. If the autonomous driving module 109 fails to wake up, the corresponding wake-up event is uploaded. After the upload is completed, it enters the sleep state.

[0049] This application divides wake-up sources into first-class wake-up sources and second-class wake-up sources, and can perform differentiated wake-up processing procedures for different types of wake-up sources. This avoids unnecessary wake-up actions due to incorrect wake-up source identification, which could lead to the accidental wake-up of high-power modules such as autonomous driving modules and vehicle controllers, thereby reducing ineffective power consumption during the wake-up process.

[0050] In one embodiment, please continue to refer to Figure 2 The power management chip 103 is also connected to the enable pin of the latch 102. The power management chip 103 is also used to control the latch 102 to be in a locked state when it receives a wake-up signal sent by any one or more wake-up sources 104.

[0051] The power management chip 103 is also connected to the enable pin of the latch 102. When the power management chip 103 receives a wake-up signal sent by any one or more wake-up sources 104, it outputs a corresponding control signal to the enable pin of the latch 102 to control the latch 102 to enter the locked state, thereby latching and maintaining the signal state of the wake-up source 104 at this time. This prevents the loss of the latched signal state due to the disappearance or change of the wake-up signal, and provides an accurate signal basis for the subsequent controller 101 to accurately read and identify the target wake-up source.

[0052] This application connects the power management chip 103 to the enable pin of the latch 102. When the power management chip 103 detects a wake-up signal, it directly controls the latch 102 to enter a locked state. This allows the wake-up source signal state to be latched at the first moment of wake-up, avoiding the loss of wake-up source information caused by the instantaneous disappearance of the wake-up signal. This ensures that the controller 101 can accurately read the real and valid wake-up source state after startup, thereby improving the accuracy and stability of wake-up source identification.

[0053] Secondly, this application also provides a vehicle wake-up method, the method being applied to a controller, the controller being connected to a latch, and the latch being connected to at least one wake-up source, such as... Figure 4 As shown, vehicle wake-up methods may include: Step S41: When a power-on signal is received, read the signal status of the wake-up source recorded in the latch.

[0054] Step S42: Determine the target wake-up source that triggers the wake-up based on the signal status of the wake-up source.

[0055] Step S43: Execute the corresponding wake-up process according to the target wake-up source.

[0056] Specifically, the specific implementation methods of steps S41-S43 can be referred to the specific discussions of the various embodiments in the first aspect, and will not be repeated here.

[0057] In one embodiment, the controller is also connected to a communication module, and the vehicle wake-up method may further include: upon receiving a power-on signal, controlling the wake-up of the communication module, and executing a corresponding wake-up process according to the target wake-up source, including: when the target wake-up source is a first type of wake-up source, notifying the communication module to upload the corresponding wake-up event, and entering a sleep state after uploading the corresponding wake-up event; when the target wake-up source is a second type of wake-up source, controlling the wake-up of the autonomous driving module and the vehicle controller, wherein the first type of wake-up source includes a power monitoring chip and a CAN transceiver, the second type of wake-up source includes a communication module and a start button module, the power monitoring chip is also connected to the battery, the power monitoring chip is used to send a low-voltage wake-up signal to the latch when the battery voltage is detected to be lower than the low-voltage wake-up threshold, the CAN transceiver is used to send a bus wake-up signal to the latch, the communication module is used to send a remote wake-up signal to the latch, and the start button module is used to send a start wake-up signal to the latch.

[0058] Specifically, the controller is also connected to the communication module. Upon receiving a power-on signal, the controller wakes up the communication module. The controller reads the signal status recorded in the latch to determine the target wake-up source and executes the corresponding wake-up process based on the target wake-up source: when the target wake-up source is a first-type wake-up source including a power monitoring chip and a CAN transceiver, the controller notifies the communication module to upload the corresponding wake-up event and re-enters sleep mode after the upload is completed; when the target wake-up source is a second-type wake-up source including a communication module and a start button module, the controller wakes up the autonomous driving module and the vehicle controller. The power monitoring chip sends a low-voltage wake-up signal to the latch when the battery voltage is detected to be below the low-voltage wake-up threshold; the CAN transceiver sends a bus wake-up signal to the latch; the communication module sends a remote wake-up signal to the latch; and the start button module sends a start wake-up signal to the latch.

[0059] This application divides wake-up sources into first-class wake-up sources and second-class wake-up sources, and executes differentiated wake-up processing procedures according to different types of target wake-up sources. On the basis of achieving accurate identification of wake-up sources, it can not only report wake-up events and quickly return to a low-power sleep state when there is a low-voltage alarm or CAN bus wake-up, thus reducing system power consumption, but also wake up the autonomous driving module and vehicle controller in a timely manner when remotely woke up or woke up by the start button, so as to meet the needs of vehicle start-up and autonomous driving, thereby achieving refined vehicle wake-up control and improving the reliability of the wake-up system.

[0060] In a second aspect, this application provides a vehicle wake-up device applied to a controller, the controller being connected to a latch, and the latch being connected to at least one wake-up source, such as... Figure 5 As shown, the vehicle wake-up device includes: a reading module 51, a determining module 52, and a wake-up module 53, wherein: The reading module 51 is used to read the signal status of the wake-up source recorded in the latch when a power-on signal is received; The determination module 52 is used to determine the target wake-up source that triggers the wake-up based on the signal state of the wake-up source; The wake-up module 53 is used to execute the corresponding wake-up process according to the target wake-up source.

[0061] In some embodiments, the controller is also connected to a communication module. The reading module 51 can also control the wake-up of the communication module when it receives a power-on signal. The wake-up module 53 can notify the communication module to upload the corresponding wake-up event when the target wake-up source is a first type of wake-up source, and enter a sleep state after uploading the corresponding wake-up event. When the target wake-up source is a second type of wake-up source, it controls the wake-up of the autonomous driving module and the vehicle controller. The first type of wake-up source includes a power monitoring chip and a CAN transceiver. The second type of wake-up source includes a communication module and a start button module. The power monitoring chip is also connected to the battery. The power monitoring chip is used to send a low-voltage wake-up signal to the latch when it detects that the battery voltage is lower than the low-voltage wake-up threshold. The CAN transceiver is used to send a bus wake-up signal to the latch. The communication module is used to send a remote wake-up signal to the latch. The start button module is used to send a start wake-up signal to the latch.

[0062] In a third aspect, this application provides a controller including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the steps of the vehicle wake-up method provided in any embodiment of the second aspect of this application.

[0063] In one embodiment, a controller is provided, the internal structure of which can be shown in the following diagram: Figure 6 As shown, the controller includes a processor, memory, network interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface is used to communicate with external terminals via a network connection. When the computer program is executed by the processor, it implements a vehicle wake-up method. The display screen can be an LCD screen or an e-ink display screen. The input devices can be a touch layer covering the display screen, buttons, a trackball, or a touchpad on the controller housing, or an external keyboard, touchpad, or mouse.

[0064] In a fourth aspect, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the vehicle wake-up method provided in any embodiment of the second aspect of this application.

[0065] The computer-readable storage medium may be Figure 6 The computer-readable storage medium in the controller shown.

[0066] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above embodiments merely illustrate several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A vehicle wake-up system, characterized in that, The system includes a controller and a latch and a power management chip respectively connected to the controller. The latch is connected to a wake-up source, and the power management chip is connected to the wake-up source. The wake-up source includes at least one, wherein... The power management chip is used to send a power-on signal to the controller when it receives a wake-up signal sent by the wake-up source; The latch is used to record the signal state of the wake-up source; The controller is used to read the signal state of the wake-up source recorded in the latch when it receives a power-on signal, determine the target wake-up source according to the signal state of the wake-up source, and execute the corresponding wake-up processing flow according to the target wake-up source.

2. The system according to claim 1, characterized in that, The controller is used to identify the wake-up source whose signal state is valid as the target wake-up source based on the signal state of the wake-up source.

3. The system according to claim 1, characterized in that, The system also includes a power monitoring chip, which is connected to both the battery and the controller. The power monitoring chip is pre-configured with a low-voltage wake-up threshold that matches the type of battery; The controller is used to notify the communication module to report the corresponding wake-up event when the target wake-up source is a first type of wake-up source, and to re-enter the sleep state after the event is reported in order to execute the wake-up processing flow. The first type of wake-up source includes the power monitoring chip and the CAN transceiver. The power monitoring chip is used to send a low-voltage wake-up signal to the latch when it detects that the voltage of the battery is lower than the low-voltage wake-up threshold. The CAN transceiver is used to send a bus wake-up signal to the latch.

4. The system according to claim 3, characterized in that, The controller is also used to control the wake-up of the autonomous driving module and the vehicle controller when the wake-up source is a second type of wake-up source, and to execute the wake-up process. The second type of wake-up source includes the communication module and the start button module. The communication module is used to send a remote wake-up signal to the latch, and the start button module is used to send a start wake-up signal to the latch.

5. The system according to claim 1, characterized in that, The power management chip is also connected to the enable pin of the latch, and the power management chip is also used to control the latch to be in a locked state when it receives a wake-up signal sent by any one or more wake-up sources.

6. A vehicle wake-up method, characterized in that, The method is applied to a controller connected to a latch, the latch being connected to at least one wake-up source, and the method includes: Upon receiving a power-on signal, the signal state of the wake-up source recorded in the latch is read; The target wake-up source that triggers the wake-up is determined based on the signal state of the wake-up source; The corresponding wake-up process is executed based on the target wake-up source.

7. The method according to claim 6, characterized in that, The controller is also connected to a communication module, and the method further includes: Upon receiving a power-on signal, the communication module is activated. The step of executing the corresponding wake-up processing flow according to the target wake-up source includes: When the target wake-up source is a first type of wake-up source, the communication module is notified to upload the corresponding wake-up event, and the sleep state is entered after the corresponding wake-up event is uploaded. When the target wake-up source is a second type of wake-up source, the autonomous driving module and the vehicle controller are woken up. The first type of wake-up source includes the power monitoring chip and the CAN transceiver, and the second type of wake-up source includes the communication module and the start button module. The power monitoring chip is also connected to the battery. The power monitoring chip is used to send a low-voltage wake-up signal to the latch when it detects that the voltage of the battery is lower than the low-voltage wake-up threshold. The CAN transceiver is used to send a bus wake-up signal to the latch. The communication module is used to send a remote wake-up signal to the latch. The start button module is used to send a start wake-up signal to the latch.

8. A vehicle wake-up device, characterized in that, The device is applied to a controller, the controller is connected to a latch, the latch is connected to at least one wake-up source, and the method includes: The reading module is used to read the signal state of the wake-up source recorded in the latch when a power-on signal is received; The determination module is used to determine the target wake-up source that triggers the wake-up based on the signal state of the wake-up source; The wake-up module is used to execute the corresponding wake-up processing flow according to the target wake-up source.

9. A controller, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 6 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 6 to 7.

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