Awakening system and method of vehicle control unit

Abstract

The invention provides an awakening system and method for a vehicle control unit. The awakening system comprises a key signal detection unit, a charging signal detection unit, a CAN signal detection unit, an LIN signal detection unit, an awakening signal monitoring unit and a system basic unit. Wherein each detection unit determines a respective wake-up signal state according to a corresponding input signal and sends the wake-up signal state to the wake-up signal monitoring unit, and the wake-up signal monitoring unit sends a wake-up trigger signal to the system basic unit when at least one signal state in the received wake-up signals is in a wake-up state; and the system basic unit further responds to the wake-up trigger signal to realize wake-up. By adopting the technical scheme provided by the invention, enabling or disabling configuration can be carried out on a plurality of wake-up source signals, flexible configuration of wake-up signals is realized, diversified requirements of vehicles are met, the flexibility of electrical architecture design of the whole vehicle is improved, and the application range of the whole vehicle controller is widened.

Description

Technical Field

[0001] The present application relates to the field of controller wake-up technology, and in particular to a wake-up system and method for a vehicle controller. Background Art

[0002] As environmental pollution becomes increasingly serious, the automotive industry is gradually moving towards the new energy era. When new energy vehicles are widely used, the automotive market will lead a greener, smarter and healthier lifestyle. New energy vehicles have extremely high requirements for the energy consumption of the entire vehicle, so their on-board components will be strictly managed for energy consumption. For example, when the vehicle is parked, the on-board components will enter a low-power state, and then wake up the vehicle controller when the vehicle is started, so that the vehicle can quickly enter the working state. At present, most of the vehicle controllers are woken up by external high and low level signals.

[0003] However, once the hardware design of the vehicle controller is completed, its wake-up method is determined, and it is impossible to enable or disable the wake-up source. When the vehicle wake-up function requirements change, it may be necessary to redevelop the vehicle controller or change the vehicle wiring harness, which is time-consuming and labor-intensive, and increases enterprise costs. Summary of the invention

[0004] In view of this, an embodiment of the present application provides a wake-up system and method for a vehicle controller, which can enable or disable multiple wake-up source signals, realize flexible configuration of wake-up signals to meet the diverse needs of vehicles, thereby increasing the flexibility of the vehicle electrical architecture design and improving the scope of application of the vehicle controller.

[0005] This application mainly includes the following aspects:

[0006] In a first aspect, an embodiment of the present application provides a wake-up system for a vehicle controller, the wake-up system comprising: a key signal detection unit, a charging signal detection unit, a CAN signal detection unit, a LIN signal detection unit, a wake-up signal monitoring unit and a system base unit;

[0007] The key signal detection unit determines the signal state of the key wake-up signal according to whether the key opening signal is received, and sends the signal state of the key wake-up signal to the wake-up signal monitoring unit; the charging signal detection unit determines the signal state of the charging wake-up signal according to whether the charging signal is received, and sends the signal state of the charging wake-up signal to the wake-up signal monitoring unit; the CAN signal detection unit determines the signal state of the CAN wake-up signal according to whether the CAN wake-up message is received, and sends the signal state of the CAN wake-up signal to the wake-up signal monitoring unit; the LIN signal detection unit determines the signal state of the LIN wake-up signal according to whether the LIN wake-up message is received, and sends the signal state of the LIN wake-up signal to the wake-up signal monitoring unit; the wake-up signal monitoring unit sends a wake-up trigger signal to the system basic unit when at least one of the signal states of the key wake-up signal, the charging wake-up signal, the CAN wake-up signal, and the LIN wake-up signal is in the wake-up state; the system basic unit wakes up in response to the wake-up trigger signal.

[0008] Preferably, the key signal detection unit is specifically used for:

[0009] Determine whether a key-on signal is received; if the key signal detection unit receives the key-on signal, determine that the signal state of the key wake-up signal is in the wake-up state; if the key signal detection unit does not receive the key-on signal, the signal state of the key wake-up signal is in the sleep state; send the signal state of the key wake-up signal to the wake-up signal monitoring unit.

[0010] Preferably, the charging signal detection unit is specifically used for:

[0011] Determine whether a charging signal is received; if the charging signal detection unit receives the charging signal, determine that the signal state of the charging wake-up signal is in the awake state; if the charging signal detection unit does not receive the charging start signal, the signal state of the charging wake-up signal is in the sleep state; send the signal state of the charging wake-up signal to the wake-up signal monitoring unit.

[0012] Preferably, the CAN signal detection unit is specifically used for:

[0013] Determine whether a CAN wake-up message is received; if the CAN signal detection unit receives the CAN wake-up message, the CAN signal detection unit enters the normal state from the sleep state, and determines that the signal state of the CAN wake-up signal is in the wake-up state; if the CAN signal detection unit does not receive the CAN wake-up message, the CAN signal detection unit remains in the sleep state, and determines that the signal state of the CAN wake-up signal is in the sleep state; the signal state of the CAN wake-up signal is sent to the wake-up signal monitoring unit.

[0014] Preferably, the LIN signal detection unit is specifically used for:

[0015] Determine whether a LIN wake-up message is received; if the LIN signal detection unit receives the LIN wake-up message, the LIN signal detection unit enters a normal state from a sleep state, and determines that the signal state of the LIN wake-up signal is in a wake-up state; if the LIN signal detection unit does not receive the LIN wake-up message, the LIN signal detection unit maintains a sleep state, and determines that the signal state of the LIN wake-up signal is in a sleep state; and send the signal state of the LIN wake-up signal to the wake-up signal monitoring unit.

[0016] Preferably, the wake-up system further comprises: a main control unit;

[0017] The main control unit sets the triggering condition for the wake-up signal monitoring unit to send the wake-up triggering signal to the system base unit through the expected rule.

[0018] In a second aspect, an embodiment of the present application further provides a wake-up method for a vehicle controller, wherein the wake-up method is applied to a wake-up system; the wake-up system comprises: a key signal detection unit, a charging signal detection unit, a CAN signal detection unit, a LIN signal detection unit, a wake-up signal monitoring unit and a system base unit;

[0019] The wake-up method comprises:

[0020] The key signal detection unit determines the signal state of the key wake-up signal according to whether the key-on signal is received, and sends the signal state of the key wake-up signal to the wake-up signal monitoring unit;

[0021] The charging signal detection unit determines the signal state of the charging wake-up signal according to whether the charging signal is received, and sends the signal state of the charging wake-up signal to the wake-up signal monitoring unit;

[0022] The CAN signal detection unit determines a signal state of the CAN wake-up signal according to whether a CAN wake-up message is received, and sends the signal state of the CAN wake-up signal to the wake-up signal monitoring unit;

[0023] The LIN signal detection unit determines a signal state of the LIN wake-up signal according to whether a LIN wake-up message is received, and sends the signal state of the LIN wake-up signal to the wake-up signal monitoring unit;

[0024] The wake-up signal monitoring unit sends a wake-up trigger signal to the system base unit when receiving at least one of the key wake-up signal, the charging wake-up signal, the CAN wake-up signal, and the LIN wake-up signal in the wake-up state;

[0025] The system base unit wakes up in response to the wake-up trigger signal.

[0026] Preferably, the key signal detection unit determines the signal state of the key wake-up signal according to whether the key-on signal is received, and sends the signal state of the key wake-up signal to the wake-up signal monitoring unit, including:

[0027] determining whether a key-on signal is received;

[0028] If the key signal detection unit receives the key-on signal, it is determined that the signal state of the key wake-up signal is in the wake-up state; if the key signal detection unit does not receive the key-on signal, the signal state of the key wake-up signal is in the sleep state;

[0029] The signal status of the key wake-up signal is sent to the wake-up signal monitoring unit.

[0030] Preferably, the charging signal detection unit determines the signal state of the charging wake-up signal according to whether the charging signal is received, and sends the signal state of the charging wake-up signal to the wake-up signal monitoring unit, including:

[0031] Determining whether a charging signal is received;

[0032] If the charging signal detection unit receives the charging signal, it is determined that the signal state of the charging wake-up signal is in the awake state; if the charging signal detection unit does not receive the charging start signal, the signal state of the charging wake-up signal is in the sleep state;

[0033] The signal state of the charging wake-up signal is sent to the wake-up signal monitoring unit.

[0034] Preferably, the CAN signal detection unit determines the signal state of the CAN wake-up signal according to whether the CAN wake-up message is received, and sends the signal state of the CAN wake-up signal to the wake-up signal monitoring unit, including:

[0035] Determine whether a CAN wake-up message is received;

[0036] If the CAN signal detection unit receives a CAN wake-up message, the CAN signal detection unit enters a normal state from a sleep state, and determines that the signal state of the CAN wake-up signal is in the wake-up state; if the CAN signal detection unit does not receive a CAN wake-up message, the CAN signal detection unit remains in a sleep state, and determines that the signal state of the CAN wake-up signal is in the sleep state;

[0037] The signal status of the CAN wake-up signal is sent to the wake-up signal monitoring unit.

[0038] An embodiment of the present application provides a wake-up system and method for a vehicle controller, wherein a key signal detection unit, a charging signal detection unit, a CAN signal detection unit, and a LIN signal detection unit respectively determine their respective wake-up signal states according to corresponding input signals and send them to a wake-up signal monitoring unit. When at least one signal state among the received wake-up signals is in the wake-up state, the wake-up signal monitoring unit sends a wake-up trigger signal to a system base unit, and the system base unit then responds to the wake-up trigger signal to achieve wake-up.

[0039] In this way, multiple wake-up source signals can be enabled or disabled, and the wake-up signals can be flexibly configured to meet the diverse needs of vehicles, thereby increasing the flexibility of the vehicle electrical architecture design and improving the applicability of the vehicle controller.

[0040] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. 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 related drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 One of the structural schematic diagrams of a wake-up system of a vehicle controller provided in an embodiment of the present application is shown;

[0043] Figure 2 A circuit diagram of a key signal detection unit provided in an embodiment of the present application is shown;

[0044] Figure 3 A circuit diagram of a charging signal detection unit provided in an embodiment of the present application is shown.

[0045] Figure 4 A second structural schematic diagram of a wake-up system for a vehicle controller provided in an embodiment of the present application is shown;

[0046] Figure 5 The circuit diagram of the CAN signal detection unit provided in the embodiment of the present application is shown;

[0047] Figure 6 The LIN signal detection unit circuit diagram provided in the embodiment of the present application is shown;

[0048] Figure 7 A circuit diagram of a wake-up signal monitoring unit provided in an embodiment of the present application is shown;

[0049] Figure 8 A circuit diagram of a basic unit of a system provided by an embodiment of the present application is shown;

[0050] Fig. 9 A circuit diagram of a main control unit provided in an embodiment of the present application is shown;

[0051] Fig.10 A flow chart of a vehicle controller wake-up method provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0052] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme 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. It should be understood that the drawings in the present application only serve the purpose of explanation and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn in real proportion. The flowchart used in this application shows the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowchart can be implemented out of sequence, and the steps without logical context can be reversed in order or implemented simultaneously. In addition, those skilled in the art, under the guidance of the content of the present application, can add one or more other operations to the flowchart, or remove one or more operations from the flowchart.

[0053] In addition, 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 described and shown in the drawings here can be arranged and designed in various 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 claimed 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 belong to the scope of protection of the present application.

[0054] The following system and method of the embodiment of the present application can be applied to any scenario where the controller needs to be awakened. The embodiment of the present application is not limited to the specific application scenario. Any solution using the vehicle controller awakening system and method provided by the embodiment of the present application is within the protection scope of the present application.

[0055] As environmental pollution becomes increasingly serious, the automotive industry is gradually moving towards the era of new energy. When new energy vehicles are widely used, the automotive market will lead a greener, smarter and healthier lifestyle. New energy vehicles have extremely high requirements for the energy consumption of the entire vehicle, so their on-board components will be strictly managed for energy consumption. For example, when the vehicle is parked, the on-board components will enter a low-power state, and then wake up the vehicle controller when the vehicle is started, so that the vehicle can quickly enter the working state. At present, most of the wake-up methods of the vehicle controller are through external high and low level signals. However, after the hardware design of the vehicle controller is completed, its wake-up method is determined, and it is impossible to enable or disable the wake-up source. When the requirements for the vehicle wake-up function change, it may be necessary to redevelop the vehicle controller or change the vehicle wiring harness, which is time-consuming and labor-intensive, and increases corporate costs.

[0056] In response to the above problems, an embodiment of the present application provides a wake-up system and method for a vehicle controller, which can enable or disable multiple wake-up source signals, realize flexible configuration of wake-up signals to meet the diverse needs of vehicles, thereby increasing the flexibility of the vehicle electrical architecture design and improving the scope of application of the vehicle controller.

[0057] To facilitate the understanding of the present application, the technical solution provided by the present application is described in detail below in conjunction with specific embodiments.

[0058] See also Figure 1 , Figure 1 This is one of the structural schematic diagrams of a wake-up system for a vehicle controller provided in an embodiment of the present application.

[0059] like Figure 1As shown, the wake-up system of the vehicle controller provided by the embodiment of the present application includes: a key signal detection unit, a charging signal detection unit, a CAN signal detection unit, a LIN signal detection unit, a wake-up signal monitoring unit and a system base unit. Among them, the key signal detection unit determines the signal state of the key wake-up signal according to whether the key opening signal is received, and sends the signal state of the key wake-up signal to the wake-up signal monitoring unit; the charging signal detection unit determines the signal state of the charging wake-up signal according to whether the charging signal is received, and sends the signal state of the charging wake-up signal to the wake-up signal monitoring unit; the CAN signal detection unit determines the signal state of the CAN wake-up signal according to whether the CAN wake-up message is received, and sends the signal state of the CAN wake-up signal to the wake-up signal monitoring unit; the LIN signal detection unit determines the signal state of the LIN wake-up signal according to whether the LIN wake-up message is received, and sends the signal state of the LIN wake-up signal to the wake-up signal monitoring unit; the wake-up signal monitoring unit sends the wake-up trigger signal to the system base unit when at least one of the signal states of the key wake-up signal, the charging wake-up signal, the CAN wake-up signal and the LIN wake-up signal is in the wake-up state; the system base unit wakes up in response to the wake-up trigger signal.

[0060] See also Figure 2 , Figure 2 A circuit diagram of a key signal detection unit provided in an embodiment of the present application is shown.

[0061] As an example, Figure 2 As shown in , the key signal detection unit circuit includes: a capacitor C1, a diode D1, a resistor R1 and a resistor R2; wherein, one end of the capacitor C1 is connected to the ground end, the other end of the capacitor C1 and the anode of the diode D1 are both connected to the output end of the key switch signal KEY_ON, the cathode of the diode D1 is connected to one end of the resistor R1, the other end of the resistor R1 and one end of the resistor R2 are both connected to the input end of the key wake-up signal KEY_ON_AWK of the wake-up signal monitoring unit, and the other end of the resistor R2 is connected to the ground end.

[0062] See also Figure 3 , Figure 3 A circuit diagram of a charging signal detection unit provided in an embodiment of the present application is shown.

[0063] As an example, Figure 3As shown in the figure, the charging signal detection unit circuit includes: a capacitor C2, a diode D2, a resistor R3 and a resistor R4; wherein, one end of the capacitor C2 is connected to the ground end, the other end of the capacitor C2 and the anode of the diode D2 are both connected to the output end of the charging signal CHARGE_ON, the diode D2 is connected to one end of the resistor R3, the other end of the resistor R3 and one end of the resistor R4 are both connected to the input end of the charging wake-up signal CHARGE_ON_AWK of the wake-up signal monitoring unit, and the other end of the resistor R4 is connected to the ground end.

[0064] See also Figure 4 , Figure 4 A second structural schematic diagram of a wake-up system for a vehicle controller provided in an embodiment of the present application is shown.

[0065] like Figure 4 As shown in , the wake-up system also includes: a main control unit.

[0066] See also Figure 5 , Figure 5 A circuit diagram of a CAN signal detection unit provided in an embodiment of the present application is shown.

[0067] As an example, Figure 5As shown in, the CAN signal detection unit circuit includes: a chip U3, a capacitor C4, a diode D4, a capacitor C6, a capacitor C7, a resistor R6, a resistor R7, a capacitor C10, a resistor R7, a resistor R11 and a resistor R10; wherein, the pin VFLT of the chip U3 and one end of the capacitor C4 are connected to the output end of the working voltage VCC, the other end of the capacitor C4 is connected to the ground end, the pin VSUP of the chip U3 is connected to the cathode of the diode D4, the anode of the diode D4 and one end of the capacitor C6 are connected to the output end of the battery voltage VBAT, the other end of the capacitor C6 is connected to the ground end, the pin VIO of the chip U3 and one end of the capacitor C7 are connected to the output end of the working voltage VCC, the other end of the capacitor C7 is connected to the ground end, one end of the resistor R6 and one end of the resistor R7 are connected to one end of the capacitor C10 The other end of capacitor C10 is connected to the ground terminal, the pin CANH of chip U3 and the other end of resistor R6 are connected to the wake-up message output end of the CANH line, the pin CANL of chip U3 and the other end of resistor R7 are connected to the wake-up message output end of the CANL line, the pin INH of chip U3 and one end of resistor R11 are connected to the input end of the CAN wake-up signal CAN_AWK of the wake-up signal monitoring unit, the pin RXD of chip U3 and the pin TXD of chip U3 are connected to the main control unit, the pin WAKE of chip U3 is connected to one end of resistor R10, the other end of resistor R10 and the other end of resistor R11 are connected to the ground terminal, the pin nSLP of chip U3 and the pin TS of chip U3 are connected to the main control unit, and the pin GND of chip U3 is connected to the ground terminal. Here, the model of chip U3 of the CAN signal detection unit is TI's CAN transceiver chip TCAN1162.

[0068] See also Figure 6 , Figure 6 The figure shows a circuit diagram of a LIN signal detection unit provided in an embodiment of the present application.

[0069] As an example, Figure 6As shown in, the LIN signal detection unit circuit includes: resistor R8, chip U4, resistor R12, resistor R9, capacitor C12, diode D5 and capacitor C11; wherein, the pin EN of the chip U4 and one end of the resistor R8 are connected to the main control unit, the other end of the resistor R8 is connected to the ground terminal, the pin WKin of the chip U4 is connected to the output end of the battery voltage VBAT, the pin RXD of the chip U4 and the pin TXD of the chip U4 are connected to the main control unit, the pin INH of the chip U4 and one end of the resistor R12 are connected to The wake-up signal monitoring unit is connected, the pin LIN of the chip U4, one end of the resistor R9, and one end of the capacitor C12 are all connected to the LIN wake-up message output end, the other end of the resistor R9 is connected to the cathode of the diode D5, the anode of the diode D5 is connected to the battery voltage VBAT output end, the pin VS of the chip U4 and one end of the capacitor C11 are all connected to the battery voltage VBAT output end, the pin GND of the chip U4, the other end of the capacitor C11, the other end of the capacitor C12, and the other end of the resistor R12 are all connected to the ground end. Here, the model of the chip U4 of the LIN signal detection unit is the LIN transceiver chip ATA663211 of Microchip Technology.

[0070] See also Figure 7 , Figure 7 A circuit diagram of a wake-up signal monitoring unit provided in an embodiment of the present application is shown.

[0071] Continuing with the above example, Figure 7 As shown in, the wake-up signal monitoring unit circuit includes: chip U2, resistor R5, capacitor C8 and diode D3; wherein, the pin IN0 of chip U2 is respectively connected to the other end of the resistor R1 of the key signal detection unit and one end of the resistor R2, the pin IN1 of chip U2 is respectively connected to the other end of the resistor R3 of the charging signal detection unit and one end of the resistor R4, the pin IN2 of chip U2 is respectively connected to the pin INH of chip U3 of the CAN signal detection unit and one end of the resistor R11, the pin IN3 of chip U2 is respectively connected to the pin INH of chip U4 of the LIN signal detection unit and one end of the resistor R12, the pin of chip U2 One end of the resistor R5 is connected to the system base unit, the other end of the resistor R5 is connected to the cathode of the diode D3, the anode of the diode D3 is connected to the ground terminal, the pin VDD of the chip U2 and one end of the capacitor C8 are connected to the output terminal of the working voltage VCC, the other end of the capacitor C8 is connected to the ground terminal, and the pin of the chip U2 is connected to the working voltage VCC output terminal. The SCLK pin of the chip U2, the SDIN pin of the chip U2, the SDOUT pin of the chip U2, and the INT_EN pin of the chip U2 are all connected to the main control unit, and the VSS pin of the chip U2 is connected to the ground terminal. Here, the model of the chip U2 of the wake-up signal monitoring unit is the interface chip PCA9704 of NXP.

[0072] See also Figure 8 , Figure 8 A circuit diagram of a basic system unit provided in an embodiment of the present application is shown.

[0073] Continuing with the above example, Figure 8 As shown in the figure, the basic unit circuit of the system includes: chip U1, capacitor C3, capacitor C9 and capacitor C5; wherein the pin BAT of chip U1 and one end of capacitor C3 are connected to the output end of battery voltage VBAT, and the other end of capacitor C3 is connected to the ground end.

[0074] ————The pin WAKE of U1 is connected to the pin INT of chip U2 and one end of resistor R5 respectively, the pin VEXT of chip U1 and one end of capacitor C9 are connected to the input end of wake-up voltage VEXT, the pin GND of chip U1 and the other end of capacitor C9 are connected to the ground end, the pin V1 of chip U1 and one end of capacitor C5 are connected to the output end of working voltage VCC, the other end of capacitor C5 is connected to the ground end, the pin RSTN of chip U1, the pin SCSN of chip U1, the pin SDO of chip U1, the pin SCK of chip U1, and the pin SDI of chip U1 are all connected to the main control unit. Here, the model of chip U1 of the system base unit is NXP's chip UJA1167ATK.

[0075] See also Fig. 9 , Fig. 9 A circuit diagram of a main control unit provided in an embodiment of the present application is shown.

[0076] Continuing with the above example, Fig. 9As shown in the figure, the main control unit circuit includes: chip U5, capacitor C13, capacitor C14, capacitor C15, resistor R13, resistor R14, resistor R15, resistor R16, capacitor C17, resistor R17, resistor R18, crystal oscillator X1, capacitor C22, capacitor C23, MOS tube Q1, capacitor C24, capacitor C25, capacitor C29, capacitor C30, capacitor C27, capacitor C28, capacitor C26, capacitor C16, capacitor C18, capacitor C19, capacitor C21. Among them, the pin RX_CAN2 of the chip U5 is connected to the pin RXD of the chip U3 of the CAN signal detection unit, the pin TX_CAN2 of the chip U5 is connected to the pin TXD of the chip U3 of the CAN signal detection unit, the pin P007 of the chip U5 is connected to the pin nSLP of the chip U3 of the CAN signal detection unit, the pin P006 of the chip U5 is connected to the pin TS of the chip U3 of the CAN signal detection unit, the pin P004 of the chip U5 is respectively connected to the pin EN of the chip U4 of the LIN signal detection unit and one end of the resistor R8, the pin RX_CAN0 of the chip U5 is connected to the pin RXD of the chip U4 of the LIN signal detection unit, the pin TX_CAN0 of the chip U5 is connected to the pin TXD of the chip U4 of the LIN signal detection unit, and the pin P024 of the chip U5 is connected to the pin

[0077] ———pin CS is connected, pin P027 of chip U5 is respectively connected to pin SCLK of chip U2 of the wake-up signal monitoring unit and pin SCK of chip U1 of the system base unit, pin P025 of chip U5 is respectively connected to pin SDIN of chip U2 of the wake-up signal monitoring unit and pin SDI of chip U1 of the system base unit, pin P026 of chip U5 is respectively connected to pin SDOUT of chip U2 of the wake-up signal monitoring unit and pin SDO of chip U1 of the system base unit, pin P004 of chip U5 is connected to pin INT_EN of chip U2 of the wake-up signal monitoring unit, P009 of chip U5 is connected to SCSN of chip U1 of the system base unit, pin GND of chip U5 is connected to the ground terminal, pin VFLEX of chip U5 is connected to one end of capacitor C13, the other end of capacitor C13 is connected to the ground terminal, pin Pin VDDFL3 and the first pin VDDP3 of chip U5 are connected to one end of capacitor C14, and the other end of capacitor C14 is connected to ground. The first pin VEXT of chip U5 is connected to one end of capacitor C15, and the other end of capacitor C15 is connected to ground. Pin HWCFG[0] of chip U5 is connected to one end of resistor R13, pin HWCFG[1] of chip U5 is connected to one end of resistor R14, and the other end of resistor R13 and the other end of resistor R14 are both connected to the wake-up voltage VEXT. Pin HWCFG[6] of chip U5 is connected to one end of resistor R15, and the other end of resistor R15 is connected to ground. Pin HWCFG[2] of chip U5 is connected to one end of resistor R16, and the other end of resistor R16 is connected to the wake-up voltage VEXT. The first pin VDD of chip U5 is connected to one end of capacitor C17, and the other end of capacitor C17 is connected to ground.

[0078] ————————————connection, the pin TESTMODE of chip U5 is connected to one end of the resistor R17, the other end of the resistor R17 is connected to the wake-up voltage VEXT, the second pin VDDP3 of chip U5 is connected to one end of the capacitor C20, the other end of the capacitor C20 is connected to the ground, the pin XTAL2 of chip U5 is respectively connected to one end of the resistor R18 and the first end of the crystal oscillator X1, the second end of the crystal oscillator X1 is connected to the ground, the pin XTAL1 of chip U5 is respectively connected to the other end of the resistor R18 and the third end of the crystal oscillator X1, The pin VSS of the chip U5 is connected to the ground terminal, the second pin VDD of the chip U5 is connected to one end of the capacitor C23, the second pin VEXT of the chip U5 is connected to one end of the capacitor C22, the other end of the capacitor C22 and the other end of the capacitor C23 are both connected to the ground terminal, the pin VGATE1P of the chip U5 is connected to the first end of the MOS tube Q1, the second end of the MOS tube Q1 is respectively connected to one end of the capacitor C24, one end of the capacitor C25, and the input end of the working voltage VDD, and the other end of the capacitor C24 and the other end of the capacitor C25 are both connected to the ground terminal The third end of the MOS tube Q1 is respectively connected to one end of the capacitor C29, one end of the capacitor C30, and the output end of the wake-up voltage VEXT, the other end of the capacitor C29 and the other end of the capacitor C30 are both connected to the ground end, the third pin VDD of the chip U5 is respectively connected to one end of the capacitor C28, the second pin VEXT of the chip U5 is connected to one end of the capacitor C27, the other end of the capacitor C27 and the other end of the capacitor C28 are both connected to the ground end, the pin VAREF1 of the chip U5 and the pin VDDM of the chip U5 are both connected to one end of the capacitor C26, and the chip U5 is connected to one end of the capacitor C27. The pin VAGNED1 of chip U5, the pin VSSM of chip U5, and the other end of capacitor C26 are all connected to the ground terminal, the fourth pin VDD of chip U5 is connected to one end of capacitor C16, the fifth pin VDD of chip U5 is connected to one end of capacitor C18, the third pin VEXT of chip U5 is connected to one end of capacitor C19, the pin VAREF2 of chip U5 is connected to one end of capacitor C21, the pin VAGND2 of chip U5, the other end of capacitor C18, the other end of capacitor C19, and the other end of capacitor C21 are all connected to the ground terminal. Here, the chip U5 of the main control unit is a TC275 microcontroller.

[0079] It should be noted that the chip U5 of the main control unit is a single-chip microcomputer with a serial peripheral interface. The chip U5 of the control unit can use but is not limited to the following single-chip microcomputers: Infineon's TC27x series, Infineon's TC38x series, Infineon's TC39x series, NXP's S32K series, NXP's S32G series, STMicroelectronics' Stellar P series, STMicroelectronics' Stellar E series, and STMicroelectronics' Stellar G series.

[0080] In an embodiment of the present application, the key signal detection unit is specifically used to: determine whether a key-on signal is received; if the key signal detection unit receives a key-on signal, determine that the signal state of the key wake-up signal is in a wake-up state; if the key signal detection unit does not receive a key-on signal, the signal state of the key wake-up signal is in a sleep state; send the signal state of the key wake-up signal to the wake-up signal monitoring unit. Here, the key-on signal can be obtained by, but is not limited to, the following methods: turning the key in the ignition switch, pressing the vehicle start button on the smart key, and remotely starting the vehicle through the client. The signal state includes: a low level state and a high level state.

[0081] In an embodiment of the present application, the charging signal detection unit is specifically used to: determine whether a charging signal is received; if the charging signal detection unit receives a charging signal, determine that the signal state of the charging wake-up is in the wake-up state; if the charging signal detection unit does not receive a charging on signal, the signal state of the charging wake-up signal is in the sleep state; send the signal state of the charging wake-up signal to the wake-up signal monitoring unit. Here, the charging signal is obtained when the charging device is connected to the vehicle for charging. The charging device may include, but is not limited to: a charging gun, a charging pile.

[0082] In an embodiment of the present application, the CAN signal detection unit is specifically used to: determine whether a CAN wake-up message is received; if the CAN signal detection unit receives a CAN wake-up message, the CAN signal detection unit enters a normal state from a sleep state, and determines that the signal state of the CAN wake-up signal is in a wake-up state; if the CAN signal detection unit does not receive a CAN wake-up message, the CAN signal detection unit remains in a sleep state, and determines that the signal state of the CAN wake-up signal is in a sleep state; the signal state of the CAN wake-up signal is sent to a wake-up signal monitoring unit. Here, the CAN wake-up message can be obtained in the following ways, but not limited to: the battery is abnormal, the fault detection sensor detects a fault, and the engine is in the preheating stage. As an example, when the battery is abnormal, such as overcharging, over-discharging, and overtemperature, the body control module generates a CAN wake-up message and sends it to the vehicle controller. After the vehicle controller is awakened, it will control the cooling system to reduce the battery temperature.

[0083] In the embodiment of the present application, the LIN signal detection unit is specifically used to: determine whether a LIN wake-up message is received; if the LIN signal detection unit receives a LIN wake-up message, the LIN signal detection unit enters a normal state from a sleep state, and determines that the signal state of the LIN wake-up signal is in a wake-up state; if the LIN signal detection unit does not receive a LIN wake-up message, the LIN signal detection unit remains in a sleep state, and determines that the signal state of the LIN wake-up signal is in a sleep state; and sends the signal state of the LIN wake-up signal to the wake-up signal monitoring unit. Here, the LIN wake-up message can be obtained by, but not limited to, the following methods: the car door is opened, and the lights in the car are turned on.

[0084] In an embodiment of the present application, the main control unit configures the trigger condition for the wake-up signal monitoring unit to send a wake-up trigger signal to the system base unit through an expected rule. Here, as an example, the chip U5 of the main control unit sets the interrupt mask register built into the wake-up signal monitoring unit chip U2 through the serial peripheral interface SPI, and setting the interrupt mask register to one or more signals in the input signal can trigger an interrupt signal. In the present application, the chip U5 of the main control unit sets the interrupt mask register built into the wake-up signal monitoring unit chip U2 through the chip select signal MCU_SPI_CS1, clock signal MCU_SPI_SCLK, input signal MCU_SPI_SDI, and output signal MCU_SPI_SDO transmitted by pins P0024, P0025, P0026, and P0027.

[0085] Continuing with the above example, assume that the chip U2 in the wake-up signal monitoring unit is provided with input signal pins IN0-IN7, and the default value of the internal input status register corresponding to these pins is 00000000. At the same time, the external signal level states corresponding to the IN0-IN7 pins are all low levels, which is consistent with the default value of the internal input status register. In this application, it is assumed that when the signal state of the wake-up signal is the wake-up state, the bit of the interrupt mask register built into the wake-up signal monitoring unit chip U2 is 1, and when the signal state of the wake-up signal is the sleep state, the bit of the interrupt mask register built into the wake-up signal monitoring unit chip U2 is 0.

[0086] Continuing with the above example, in the key signal detection unit, when the key switch signal is an on signal, the key switch signal KEY_ON is high, the signal is filtered by capacitor C1, and then reaches resistor R1 through diode D1, and finally the key wake-up signal KEY_ON_AWK generated by the voltage divider of resistor R2 is high, and is in the wake-up state. When the key switch signal is an off signal, the key switch signal KEY_ON is low, the entire circuit of the key signal detection unit remains low, and the key wake-up signal KEY_ON_AWK is low, and is in the sleep state. When the key wake-up signal KEY_ON_AWK is high, the key signal detection unit sends the key wake-up signal KEY_ON_AWK to the wake-up signal monitoring unit, and the pin IN0 of the wake-up signal monitoring unit receives a high level. At this time, the bit of the interrupt mask register corresponding to the pin IN0 of the wake-up signal monitoring unit chip U2 is 1.

[0087] Continuing with the above example, in the charging signal detection unit, when a charging signal is received, the charging signal CHARGE_ON is high, the signal is filtered by capacitor C2, and then reaches resistor R3 through diode D2, and finally the charging wake-up signal CHARGE_ON_AWK generated by the voltage divider of resistor R4 is high, and is in the awake state. When no charging signal is received, the charging signal CHARGE_ON is low, the entire circuit of the charging signal detection unit remains low, and the charging wake-up signal CHARGE_ON_AWK is low, and is in the sleep state. When the charging wake-up signal CHARGE_ON_AWK is high, the charging signal detection unit sends the charging wake-up signal CHARGE_ON_AWK to the wake-up signal monitoring unit, and the pin IN1 of the wake-up signal monitoring unit receives a high level. At this time, the bit of the interrupt mask register corresponding to the pin IN1 of the wake-up signal monitoring unit chip U2 is 1.

[0088] Continuing with the above example, in the CAN signal detection unit, when the CAN signal detection unit does not receive the CAN wake-up message, the low-power signal MCU_CAN_nSLP on the pin P007 of the chip U5 of the main control unit is at a low level, and the pin RX_CAN2 of the chip U5 of the main control unit sends a sleep instruction to the chip U3 of the CAN signal detection unit, and the chip U3 of the CAN signal detection unit enters a sleep state, and the CAN wake-up signal CAN_AWK sent by the pin INH of the chip U3 of the CAN signal detection unit to the pin IN3 of the chip U5 of the main control unit is at a low level, and the signal state of the CAN wake-up signal is in a sleep state. When the device sends a CAN wake-up message to the CANL and CANH pins of the chip U3 of the CAN signal detection unit through the CAN bus, the chip U3 of the CAN signal detection unit enters the normal state from the sleep state, and the CAN wake-up signal CAN_AWK sent by the pin INH of the chip U3 of the CAN signal detection unit to the pin IN3 of the chip U5 of the main control unit is high, and the signal state of the CAN wake-up signal is in the wake-up state. At this time, the bit of the interrupt mask register corresponding to the pin IN3 of the wake-up signal monitoring unit chip U2 is 1.

[0089] Continuing with the above example, in the LIN signal detection unit, when the LIN signal detection unit does not receive the LIN wake-up message, the enable signal MCU_LIN_EN on the pin P004 of the chip U5 of the main control unit is at a low level, and the pin RX_CAN0 of the chip U5 of the main control unit sends a sleep instruction to the chip U4 of the LIN signal detection unit, and the chip U4 of the LIN signal detection unit enters a sleep state. The LIN wake-up signal LIN_AWK sent by the pin INH of the chip U4 of the LIN signal detection unit to the pin IN4 of the chip U5 of the main control unit is at a low level, and the signal state of the LIN wake-up signal is in a sleep state. When the device sends a LIN wake-up message to the pins LINL and LINH of the chip U4 of the LIN signal detection unit through the LIN bus, the chip U4 of the LIN signal detection unit enters the normal state from the sleep state, and the LIN wake-up signal LIN_AWK sent by the pin INH of the chip U4 of the LIN signal detection unit to the pin IN3 of the chip U5 of the main control unit is high, and the signal state of the LIN wake-up signal is in the wake-up state. At this time, the bit of the interrupt mask register corresponding to the pin IN4 of the wake-up signal monitoring unit chip U2 is 1.

[0090] Continuing with the above example, when any signal of the IN0-IN7 pin of the wake-up signal monitoring unit becomes high level, the interrupt mask register expectation rule built into the chip U2 of the wake-up signal monitoring unit determines whether to trigger the wake-up signal monitoring unit. The pin generates a falling edge signal, that is, the falling edge signal is the wake-up trigger signal. For example, assuming that the expected rule of the built-in interrupt mask register of the chip U2 of the wake-up signal monitoring unit is: when only one pin corresponding to the interrupt mask register bit is 1, the pin of the wake-up signal monitoring unit is triggered Generate a falling edge signal; when the interrupt mask register bits corresponding to multiple pins are 1 at the same time, the wake-up signal monitoring unit pin is not triggered Generate a falling edge signal, assuming that the lowest bit corresponds to IN0. When the status register of the wake-up signal monitoring unit is 00000001 (the key switch signal is an open signal), the wake-up signal monitoring unit pin is triggered. Generate a falling edge signal. When the status register of the wake-up signal monitoring unit is 00000011 (the key switch signal is an open signal and a charging signal is received), the wake-up signal monitoring unit pin is not triggered. Generates a falling edge signal.

[0091] In the embodiment of the present application, when the chip U1 of the system base unit is in a sleep state, the wake-up voltage VEXT is in a closed state and has no output. After the system base unit wakes up, the wake-up voltage VEXT is output through the pin VEXT of the chip U1 of the system base unit, and the wake-up voltage VEXT provides a working voltage for the main control unit. Specifically, the wake-up voltage VEXT generates a 3.3V power supply through the voltage regulator module inside the chip U5 of the main control unit to power the internal modules of the main control unit.

[0092] An embodiment of the present application provides a wake-up system for a vehicle controller. Through the wake-up system, multiple wake-up source signals can be enabled or disabled, thereby achieving flexible configuration of wake-up signals to meet the diverse needs of vehicles, thereby increasing the flexibility of the vehicle electrical architecture design and improving the applicability of the vehicle controller.

[0093] Based on the same application concept, the embodiment of the present application also provides a wake-up method for the vehicle controller corresponding to the wake-up system of the vehicle controller provided in the above embodiment. Since the principle of solving the problem by the system in the embodiment of the present application is similar to the wake-up system of the vehicle controller in the above embodiment of the present application, the implementation of the method can refer to the implementation of the system, and the repeated parts will not be repeated.

[0094] See also Fig.10 , Fig.10 A flow chart of a vehicle controller wake-up method provided in an embodiment of the present application is shown.

[0095] like Fig.10 As shown in , the wake-up method is applied to wake-up the system; the wake-up method includes:

[0096] Step S101 : The key signal detection unit determines the signal state of the key wake-up signal according to whether the key-on signal is received, and sends the signal state of the key wake-up signal to the wake-up signal monitoring unit.

[0097] Step S102 : The charging signal detection unit determines the signal state of the charging wake-up signal according to whether the charging signal is received, and sends the signal state of the charging wake-up signal to the wake-up signal monitoring unit.

[0098] Step S103 : The CAN signal detection unit determines the signal state of the CAN wake-up signal according to whether the CAN wake-up message is received, and sends the signal state of the CAN wake-up signal to the wake-up signal monitoring unit.

[0099] Step S104 : The LIN signal detection unit determines the signal state of the LIN wake-up signal according to whether the LIN wake-up message is received, and sends the signal state of the LIN wake-up signal to the wake-up signal monitoring unit.

[0100] Step S105 , when the wake-up signal monitoring unit receives at least one of the key wake-up signal, the charging wake-up signal, the CAN wake-up signal, and the LIN wake-up signal and the signal state is in the wake-up state, the wake-up signal monitoring unit sends a wake-up trigger signal to the system base unit.

[0101] Step S106: the system base unit wakes up in response to the wake-up trigger signal.

[0102] Further, regarding step S101, in specific implementation, as an example, the following steps may be included:

[0103] First, it is determined whether a key-on signal is received.

[0104] Then, if the key signal detection unit receives the key-on signal, it is determined that the signal state of the key wake-up signal is in the wake-up state; if the key signal detection unit does not receive the key-on signal, the signal state of the key wake-up signal is in the sleep state.

[0105] Finally, the signal state of the key wake-up signal is sent to the wake-up signal monitoring unit.

[0106] Further, regarding step S102, in specific implementation, as an example, the following steps may be included:

[0107] First, it is determined whether a charging signal is received.

[0108] Then, if the charging signal detection unit receives the charging signal, it is determined that the signal state of the charging wake-up signal is in the awake state; if the charging signal detection unit does not receive the charging start signal, the signal state of the charging wake-up signal is in the sleep state.

[0109] Finally, the signal state of the charging wake-up signal is sent to the wake-up signal monitoring unit.

[0110] Further, regarding step S103, in specific implementation, as an example, the following steps may be included:

[0111] First, determine whether a CAN wake-up message is received.

[0112] Then, if the CAN signal detection unit receives a CAN wake-up message, the CAN signal detection unit enters a normal state from a sleep state, and determines that the signal state of the CAN wake-up signal is in the wake-up state; if the CAN signal detection unit does not receive a CAN wake-up message, the CAN signal detection unit remains in the sleep state, and determines that the signal state of the CAN wake-up signal is in the sleep state.

[0113] Finally, the signal status of the CAN wake-up signal is sent to the wake-up signal monitoring unit.

[0114] Further, regarding step S104, in specific implementation, as an example, the following steps may be included:

[0115] First, determine whether a LIN wake-up message is received.

[0116] Then, if the LIN signal detection unit receives a LIN wake-up message, the LIN signal detection unit enters a normal state from a sleep state, and determines that the signal state of the LIN wake-up signal is in the wake-up state; if the LIN signal detection unit does not receive a LIN wake-up message, the LIN signal detection unit maintains a sleep state, and determines that the signal state of the LIN wake-up signal is in the sleep state.

[0117] Finally, the signal state of the LIN wake-up signal is sent to the wake-up signal monitoring unit.

[0118] Further, the main control unit sets the triggering condition for the wake-up signal monitoring unit to send the wake-up triggering signal to the system base unit through the expected rule.

[0119] An embodiment of the present application provides a wake-up method for a vehicle controller. Through the wake-up method, multiple wake-up source signals can be enabled or disabled, thereby achieving flexible configuration of wake-up signals to meet the diverse needs of vehicles, thereby increasing the flexibility of the vehicle electrical architecture design and improving the applicability of the vehicle controller.

[0120] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working process of the system and device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. In the several embodiments provided in the present application, it should be understood that the disclosed system, device and method 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 interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0121] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0122] In addition, each functional unit in each embodiment of 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.

[0123] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a non-volatile computer-readable storage medium that is executable by a processor. 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, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform 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), random access memory (RAM), disk or optical disk, etc., various media that can store program codes.

[0124] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A vehicle controller wake-up system, characterized in that: The wake-up system includes: a key signal detection unit, a charging signal detection unit, a CAN signal detection unit, a LIN signal detection unit, a wake-up signal monitoring unit and a system base unit; The key signal detection unit determines the signal state of the key wake-up signal according to whether the key opening signal is received, and sends the signal state of the key wake-up signal to the wake-up signal monitoring unit; the charging signal detection unit determines the signal state of the charging wake-up signal according to whether the charging signal is received, and sends the signal state of the charging wake-up signal to the wake-up signal monitoring unit; the CAN signal detection unit determines the signal state of the CAN wake-up signal according to whether the CAN wake-up message is received, and sends the signal state of the CAN wake-up signal to the wake-up signal monitoring unit; the LIN signal detection unit determines the signal state of the LIN wake-up signal according to whether the LIN wake-up message is received, and sends the signal state of the LIN wake-up signal to the wake-up signal monitoring unit; the wake-up signal monitoring unit sends a wake-up trigger signal to the system basic unit when at least one of the signal states of the key wake-up signal, the charging wake-up signal, the CAN wake-up signal, and the LIN wake-up signal is in the wake-up state; the system basic unit wakes up in response to the wake-up trigger signal.

2. The wake-up system according to claim 1, characterized in that: The key signal detection unit is specifically used for: Determine whether a key-on signal is received; if the key signal detection unit receives the key-on signal, determine that the signal state of the key wake-up signal is in the wake-up state; if the key signal detection unit does not receive the key-on signal, the signal state of the key wake-up signal is in the sleep state; send the signal state of the key wake-up signal to the wake-up signal monitoring unit.

3. The wake-up system according to claim 1, characterized in that: The charging signal detection unit is specifically used for: Determine whether a charging signal is received; if the charging signal detection unit receives the charging signal, determine that the signal state of the charging wake-up signal is in the awake state; if the charging signal detection unit does not receive the charging start signal, the signal state of the charging wake-up signal is in the sleep state; send the signal state of the charging wake-up signal to the wake-up signal monitoring unit.

4. The wake-up system according to claim 1, characterized in that: The CAN signal detection unit is specifically used for: Determine whether a CAN wake-up message is received; if the CAN signal detection unit receives the CAN wake-up message, the CAN signal detection unit enters the normal state from the sleep state, and determines that the signal state of the CAN wake-up signal is in the wake-up state; if the CAN signal detection unit does not receive the CAN wake-up message, the CAN signal detection unit remains in the sleep state, and determines that the signal state of the CAN wake-up signal is in the sleep state; the signal state of the CAN wake-up signal is sent to the wake-up signal monitoring unit.

5. The wake-up system according to claim 1, characterized in that: The LIN signal detection unit is specifically used for: Determine whether a LIN wake-up message is received; if the LIN signal detection unit receives the LIN wake-up message, the LIN signal detection unit enters a normal state from a sleep state, and determines that the signal state of the LIN wake-up signal is in a wake-up state; if the LIN signal detection unit does not receive the LIN wake-up message, the LIN signal detection unit maintains a sleep state, and determines that the signal state of the LIN wake-up signal is in a sleep state; and send the signal state of the LIN wake-up signal to the wake-up signal monitoring unit.

6. The wake-up system according to claim 1, characterized in that: The wake-up system further includes: a main control unit; The main control unit sets the triggering condition for the wake-up signal monitoring unit to send the wake-up triggering signal to the system base unit through the expected rule.

7. A vehicle controller wake-up method, characterized in that: The wake-up method is applied to a wake-up system; the wake-up system comprises: a key signal detection unit, a charging signal detection unit, a CAN signal detection unit, a LIN signal detection unit, a wake-up signal monitoring unit and a system base unit; The wake-up method comprises: The key signal detection unit determines the signal state of the key wake-up signal according to whether the key-on signal is received, and sends the signal state of the key wake-up signal to the wake-up signal monitoring unit; The charging signal detection unit determines the signal state of the charging wake-up signal according to whether the charging signal is received, and sends the signal state of the charging wake-up signal to the wake-up signal monitoring unit; The CAN signal detection unit determines a signal state of the CAN wake-up signal according to whether a CAN wake-up message is received, and sends the signal state of the CAN wake-up signal to the wake-up signal monitoring unit; The LIN signal detection unit determines a signal state of the LIN wake-up signal according to whether a LIN wake-up message is received, and sends the signal state of the LIN wake-up signal to the wake-up signal monitoring unit; The wake-up signal monitoring unit sends a wake-up trigger signal to the system base unit when receiving at least one of the key wake-up signal, the charging wake-up signal, the CAN wake-up signal, and the LIN wake-up signal in the wake-up state; The system base unit wakes up in response to the wake-up trigger signal.

8. The wake-up method according to claim 7, characterized in that: The key signal detection unit determines the signal state of the key wake-up signal according to whether the key-on signal is received, and sends the signal state of the key wake-up signal to the wake-up signal monitoring unit, including: determining whether a key-on signal is received; If the key signal detection unit receives the key-on signal, it is determined that the signal state of the key wake-up signal is in the wake-up state; if the key signal detection unit does not receive the key-on signal, the signal state of the key wake-up signal is in the sleep state; The signal status of the key wake-up signal is sent to the wake-up signal monitoring unit.

9. The wake-up method according to claim 7, characterized in that: The charging signal detection unit determines the signal state of the charging wake-up signal according to whether the charging signal is received, and sends the signal state of the charging wake-up signal to the wake-up signal monitoring unit, including: Determining whether a charging signal is received; If the charging signal detection unit receives the charging signal, it is determined that the signal state of the charging wake-up signal is in the awake state; if the charging signal detection unit does not receive the charging start signal, the signal state of the charging wake-up signal is in the sleep state; The signal state of the charging wake-up signal is sent to the wake-up signal monitoring unit.

10. The wake-up method according to claim 7, characterized in that: The CAN signal detection unit determines the signal state of the CAN wake-up signal according to whether the CAN wake-up message is received, and sends the signal state of the CAN wake-up signal to the wake-up signal monitoring unit, including: Determine whether a CAN wake-up message is received; If the CAN signal detection unit receives a CAN wake-up message, the CAN signal detection unit enters a normal state from a sleep state, and determines that the signal state of the CAN wake-up signal is in the wake-up state; if the CAN signal detection unit does not receive a CAN wake-up message, the CAN signal detection unit remains in a sleep state, and determines that the signal state of the CAN wake-up signal is in the sleep state; The signal status of the CAN wake-up signal is sent to the wake-up signal monitoring unit.

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