Control circuit, control method and related apparatus

Abstract

A control circuit (101), applied to the technical field of battery management. When a first battery (102) and / or a control circuit (101) meets a first condition, by means of a control signal, the control unit (1011) can control a switch unit (1014) to be turned off, such that a power management unit (1012) cannot receive a first signal, and accordingly the control unit (1011) cannot be woken up by means of the first signal. Therefore, in some scenarios in which, for example, the remaining power of the first battery (102) is lower than a first threshold, and / or the control circuit (101) has a fault, a valid wake-up source for the control unit (1011) can be disconnected, such that the control unit (1011) cannot be woken up, and thus can enter a low-power working state, thereby prolonging the available time of a low-voltage lithium battery, and effectively ensuring the service life of the low-voltage lithium battery. In addition, the present application also relates to a control method and a related apparatus.

Description

A control circuit, control method and related device Technical Field

[0001] This application relates to the field of battery management technology, and in particular to a control circuit, control method and related device. Background Technology

[0002] With the booming development of the automotive industry, more and more vehicles are using low-voltage lithium batteries to provide energy for the vehicle's low-voltage network (e.g., 12V / 24V). During vehicle startup or driving, the electronic control unit (ECU) is powered by a DC-DC converter and the low-voltage lithium battery, which is also charged via the DC-DC converter. However, due to circuit faults or other malfunctions, the low-voltage lithium battery may fail to receive power from the DC-DC converter. Since the low-voltage lithium battery continues to supply power to the low-voltage battery management system (LBMS), its charge level gradually decreases, eventually damaging the battery.

[0003] Therefore, a feasible solution is urgently needed to effectively guarantee the lifespan of low-voltage lithium batteries.

[0004] Summary of the Invention

[0005] This application provides a control circuit, control method, and related device that can effectively ensure the service life of low-voltage lithium batteries.

[0006] In a first aspect, this application provides a control circuit, characterized in that it is applied to a first battery, the first battery being used to power the control circuit. The control circuit includes a control unit, a power management unit, a transceiver unit, and a switching unit.

[0007] The control unit is connected to the power management unit. The transceiver unit receives a first signal, which is used to wake up the control unit. The control unit, when the first battery and / or control circuit meets a first condition, sends a control signal to the switching unit to control the switching unit to disconnect. The control unit is connected to the switching unit. The switching unit controls the power management unit to receive the first signal.

[0008] In this application, the control unit can control the switching unit to disconnect via a control signal when the first battery and / or control circuit meet a first condition, so that the power management unit cannot receive the first signal, and thus cannot wake up the control unit via the first signal. In some scenarios (e.g., the remaining charge of the first battery is below a first threshold, and / or, the control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing it from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0009] In one possible implementation of the first aspect, the first condition includes: the remaining charge of the first battery is lower than a first threshold, and / or, the control circuit malfunctions.

[0010] When the remaining charge of the first battery is lower than a first threshold, and / or when there is a fault in the control circuit, it is necessary to reduce the power consumption of the control unit and extend the usable time of the low-voltage lithium battery.

[0011] In another possible implementation of the first aspect, the switching unit includes a first switching unit, which is connected to both a power management unit and a first electronic control unit (ECU), and the ECU is connected to the first switching unit. There is no connection between the power management unit and the transceiver unit, or the transceiver unit does not support the transmission of the first signal.

[0012] In another possible implementation of the first aspect, the control signal includes a first control signal for controlling the first switching unit to disconnect. The first switching unit is used to control the power management unit to receive a first signal from the first ECU.

[0013] In the above embodiments, when the first battery and / or control circuit meet the first condition, the control unit can control the first switching unit to disconnect via a first control signal, so that the power management unit cannot receive the first signal from the first ECU, and the first ECU cannot wake up the control unit via the first signal. Thus, in some scenarios (e.g., when the remaining charge of the first battery is below a first threshold, and / or when the control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing the control unit from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0014] In another possible implementation of the first aspect, the switching unit includes a second switching unit, which is connected to the power management unit and the transceiver unit respectively, and the control unit is connected to the second switching unit.

[0015] In another possible implementation of the first aspect, the control signal includes a second control signal for controlling the second switching unit to open. The second switching unit is used to control the power management unit to receive the first signal from the transceiver unit.

[0016] In the above embodiments, when the first battery and / or control circuit meet the first condition, the control unit can control the second switching unit to disconnect via a second control signal, so that the power management unit cannot receive the first signal from the transceiver unit, and the transceiver unit cannot wake up the control unit via the first signal. Thus, in some scenarios (e.g., when the remaining charge of the first battery is below a first threshold, and / or when the control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing the control unit from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0017] In another possible implementation of the first aspect, the switching unit includes a third switching unit disposed between the input port and the output port of the transceiver unit. The power management unit is connected to the transceiver unit, and the control unit is connected to the third switching unit.

[0018] In another possible implementation of the first aspect, the control signal includes a third control signal for controlling the third switching unit to open. The third switching unit is used to control the power management unit to receive the first signal from the transceiver unit.

[0019] In the above embodiments, when the first battery and / or control circuit meet the first condition, the control unit can control the third switching unit to disconnect via a third control signal, so that the power management unit cannot receive the first signal from the transceiver unit, and the transceiver unit cannot wake up the control unit via the first signal. Thus, in some scenarios (e.g., when the remaining charge of the first battery is below a first threshold, and / or when the control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing the control unit from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0020] In another possible implementation of the first aspect, the switching unit includes a fourth switching unit, which is connected to the power management unit and the transceiver unit respectively, and the control unit is connected to the fourth switching unit.

[0021] In another possible implementation of the first aspect, the control signal includes a fourth control signal for controlling the fourth switching unit to disconnect. The fourth switching unit is used to control the power management unit to supply power to the transceiver unit.

[0022] In the above embodiments, when the first battery and / or control circuit meet the first condition, the control unit can control the fourth switching unit to disconnect via a fourth control signal, so that the power management unit cannot supply power to the transceiver unit, and the transceiver unit cannot wake up the control unit via the first signal. Thus, in some scenarios (e.g., when the remaining charge of the first battery is below a first threshold, and / or, the control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing the control unit from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0023] Secondly, this application provides a control method applied to the control circuit of any of the first aspects mentioned above. The control circuit includes a control unit, a power management unit, a transceiver unit, and a switching unit. The control unit is connected to the power management unit, and the control unit is connected to the switching unit. The control method includes:

[0024] When the first battery and / or control circuit meet the first condition, a control signal is sent to control the switching unit to open, and the first battery is used to power the control circuit.

[0025] The transceiver unit receives a first signal, which is used to wake up the control unit. The switch unit controls the power management unit to receive the first signal.

[0026] In one possible implementation of the second aspect, the first condition includes: the remaining charge of the first battery is lower than a first threshold, and / or, the control circuit malfunctions.

[0027] In another possible implementation of the second aspect, the switching unit includes a first switching unit, which is connected to both a power management unit and a first electronic control unit (ECU). The ECU is connected to the first switching unit. There is no connection between the power management unit and the transceiver unit, or the transceiver unit does not support the transmission of the first signal. Sending a control signal includes sending a first control signal, which is used to control the first switching unit to disconnect. The first switching unit is used to control the power management unit to receive the first signal from the first ECU.

[0028] In another possible implementation of the second aspect, the switching unit includes a second switching unit connected to both the power management unit and the transceiver unit, and the control unit is connected to the second switching unit. Sending a control signal includes sending a second control signal to control the second switching unit to open. The second switching unit is used to control the power management unit to receive a first signal from the transceiver unit.

[0029] In another possible implementation of the second aspect, the switching unit includes a third switching unit disposed between the input port and the output port of the transceiver unit. A power management unit is connected to the transceiver unit, and a control unit is connected to the third switching unit. Sending a control signal includes sending a third control signal for controlling the third switching unit to open. The third switching unit is used to control the power management unit to receive a first signal from the transceiver unit.

[0030] In another possible implementation of the second aspect, the switching unit includes a fourth switching unit, which is connected to both the power management unit and the transceiver unit, and the control unit is connected to the fourth switching unit. Sending a control signal includes sending a fourth control signal, which controls the fourth switching unit to disconnect. The fourth switching unit is used to control the power management unit to supply power to the transceiver unit.

[0031] Regarding the control method described in the second aspect and any possible implementation, the steps of its execution can be referred to the corresponding implementations in the first aspect.

[0032] For the technical effects of the second aspect and any possible implementation, please refer to the description of the technical effects corresponding to the first aspect and the corresponding implementation.

[0033] Thirdly, this application provides yet another control method applied to a control circuit. The control circuit includes a control unit, a power management unit, and a transceiver unit. The control unit is connected to the power management unit, and the power management unit is connected to the transceiver unit. The transceiver unit receives a first signal, which is used to wake up the control unit. The control method includes:

[0034] When the first battery and / or control circuit meet the first condition, a fifth control signal is sent. The fifth control signal is used to control the transmission of the shielded first signal, and the first battery is used to power the control circuit.

[0035] In this application, the control circuit can, when the first battery and / or the control circuit meet the first condition, control the shielding of the transmission of the first signal via a fifth control signal, so that other devices cannot wake up the control unit via the first signal. Thus, in some scenarios (e.g., when the remaining charge of the first battery is below a first threshold, and / or, the control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing it from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0036] In one possible implementation of the third aspect, the first condition includes: the remaining charge of the first battery is lower than a first threshold, and / or, the control circuit malfunctions.

[0037] In one possible implementation of the third aspect, the transceiver unit includes a management unit for managing the signal transmission and reception of the transceiver unit. Sending a fifth control signal includes:

[0038] A fifth control signal is sent to the management unit. The fifth control signal is used to control the management unit to shield the transceiver unit from transmitting the first signal.

[0039] In the above embodiments, the control circuit can send a fifth control signal to the management unit, thereby controlling the management unit to shield the transceiver unit from transmitting the first signal, so that other devices cannot wake up the control unit through the first signal. Thus, in some scenarios (e.g., when the remaining power of the first battery is below a first threshold, and / or the control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing it from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0040] In another possible implementation of the third aspect, sending a fifth control signal includes:

[0041] A fifth control signal is sent to the transceiver unit and / or the power management unit. The fifth control signal is used to control the transmission of the shielded first signal between the power management unit and the transceiver unit.

[0042] In the above embodiments, the control circuit can send a fifth control signal to the transceiver unit and / or the power management unit. This fifth control signal controls the power management unit and the transceiver unit to shield the transmission of the first signal, preventing other devices from waking up the control unit via the first signal. Thus, in some scenarios (e.g., when the remaining charge of the first battery is below a first threshold, and / or the control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing it from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0043] Fourthly, this application provides a control device, which includes:

[0044] The transceiver module is used to send a control signal when the first battery and / or control circuit meets a first condition. The control signal is used to control the switching unit to open.

[0045] The first battery powers the control circuit, which includes a control unit, a power management unit, a transceiver unit, and a switching unit. The control unit is connected to the power management unit and the switching unit. The transceiver unit receives a first signal, which is used to wake up the control unit. The switching unit controls the power management unit to receive the first signal.

[0046] In another possible implementation of the fourth aspect, the first condition includes: the remaining charge of the first battery is lower than a first threshold, and / or, the control circuit malfunctions.

[0047] In one possible implementation of the fourth aspect, the switching unit includes a first switching unit, which is connected to both a power management unit and a first electronic control unit (ECU). The ECU is connected to the first switching unit. There is no connection between the power management unit and the transceiver unit, or the transceiver unit does not support the transmission of the first signal. The transceiver module is further configured to transmit a first control signal, which controls the first switching unit to disconnect, and the first switching unit controls the power management unit to receive the first signal from the first ECU.

[0048] In another possible implementation of the fourth aspect, the switching unit includes a second switching unit connected to both the power management unit and the transceiver unit, and the control unit is connected to the second switching unit. The transceiver module is further configured to transmit a second control signal, which controls the second switching unit to open, and the second switching unit controls the power management unit to receive a first signal from the transceiver unit.

[0049] In another possible implementation of the fourth aspect, the switching unit includes a third switching unit disposed between the input port and the output port of the transceiver unit. The power management unit is connected to the transceiver unit, and the control unit is connected to the third switching unit. The transceiver module is also used to transmit a third control signal, which controls the third switching unit to open, and the third switching unit controls the power management unit to receive a first signal from the transceiver unit.

[0050] In another possible implementation of the fourth aspect, the switching unit includes a fourth switching unit connected to both the power management unit and the transceiver unit, and the control unit is connected to the fourth switching unit. The transceiver module is also configured to transmit a fourth control signal, which controls the fourth switching unit to disconnect, and the fourth switching unit controls the power management unit to supply power to the transceiver unit.

[0051] The steps for performing the modules described in the fourth aspect and any possible implementation can be referred to the corresponding implementation in the second aspect.

[0052] Regarding the technical effects of the fourth aspect and any possible implementation, refer to the description of the technical effects corresponding to the second aspect and the corresponding implementation.

[0053] Fifthly, this application provides yet another control device, which includes:

[0054] The transceiver module is used to send a fifth control signal when the first battery and / or control circuit meets the first condition. The fifth control signal is used to control the transmission of the shielded first signal.

[0055] The first battery is used to power the control circuit, which includes a control unit, a power management unit, and a transceiver unit. The control unit is connected to the power management unit, and the power management unit is connected to the transceiver unit. The transceiver unit is used to receive a first signal, which is used to wake up the control unit.

[0056] In one possible implementation of the fifth aspect, the transceiver unit includes a management unit for managing the signal transmission and reception of the transceiver unit. The transceiver module is further configured to send a fifth control signal to the management unit, the fifth control signal being used to control the management unit to shield the transceiver unit from transmitting the first signal.

[0057] In another possible implementation of the fifth aspect, the transceiver module is further configured to send a fifth control signal to the transceiver unit and / or the power management unit, the fifth control signal being used to control the transmission of the shielded first signal between the power management unit and the transceiver unit.

[0058] The steps for performing the modules described in the fifth aspect and any possible implementation can be referred to the corresponding implementation in the third aspect.

[0059] For the technical effects of the fifth aspect and any possible implementation, please refer to the description of the technical effects corresponding to the third aspect and the corresponding implementation.

[0060] In a sixth aspect, embodiments of this application provide a computing device, which includes a processor and a memory. The memory stores a program, and the processor executes the program stored in the memory to cause the computing device to implement the method described in any of the second aspects above. Alternatively, the processor executes the program stored in the memory to cause the computing device to implement the method described in any of the third aspects above.

[0061] In a seventh aspect, this application provides a terminal, which includes the aforementioned control circuit, control device, or computing device, and is used to implement the method described in any of the second or third aspects.

[0062] Optionally, the terminal may further include a first battery and / or a first ECU, wherein the first battery is used to power the control circuit and the first ECU is used to wake up the control circuit.

[0063] Optionally, the terminal can be a means of transportation, such as a car, truck, aircraft, drone, slow transport vehicle, spacecraft, or ship, or any other possible means of transportation used in any scenario. This application does not limit this.

[0064] Eighthly, embodiments of this application provide a computer-readable storage medium for storing a computer program, the computer program including instructions for performing the methods described in any of the second or third aspects.

[0065] Ninthly, this application provides a computer program product including computer instructions that, when executed by a control device, computing device, or processor, cause the methods described in any of the second or third aspects to be implemented.

[0066] The solutions provided in aspects six through nine above are used to implement or cooperate with the methods provided in aspects two or three above, and therefore can achieve the same or corresponding beneficial effects as the control circuits in aspect one, which will not be elaborated here. Attached Figure Description

[0067] The accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0068] Figure 1 is a schematic diagram of a control circuit provided in an embodiment of this application;

[0069] Figure 2 is a schematic diagram of another control circuit provided in an embodiment of this application;

[0070] Figure 3 is a schematic diagram of another control circuit provided in an embodiment of this application;

[0071] Figure 4 is a schematic diagram of another control circuit provided in an embodiment of this application;

[0072] Figure 5 is a schematic diagram of another control circuit provided in an embodiment of this application;

[0073] Figure 6 is a schematic diagram of another control circuit provided in an embodiment of this application;

[0074] Figure 7 is a flowchart illustrating a control method provided in an embodiment of this application;

[0075] Figure 8 is a flowchart illustrating another control method provided in an embodiment of this application;

[0076] Figure 9 is a schematic diagram of the structure of a control device provided in an embodiment of this application;

[0077] Figure 10 is a schematic diagram of another control device provided in an embodiment of this application;

[0078] Figure 11 is a schematic diagram of the structure of a computing device provided in an embodiment of this application. Detailed Implementation

[0079] The following section provides an exemplary description of the systems that this application may be applied to. It should be noted that the system architecture and business scenarios described in this application are for the purpose of more clearly illustrating the technical solutions of this application and do not constitute a limitation on the technical solutions provided in this application. Those skilled in the art will understand that, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in this application are equally applicable to similar technical problems.

[0080] The following describes a battery system provided by an embodiment of this application. As shown in FIG1, the battery system provided by the embodiment of this application includes a control circuit 101 and a first battery 102.

[0081] Optionally, the control circuit 101 is connected to the first battery 102, which powers the control circuit 101. The control circuit 101 can control the first battery 102 to discharge externally or disconnect its external discharge. For example, the first battery 102 may be a low-voltage lithium battery (e.g., a lithium battery capable of providing 12V / 24V), and the control circuit 101 may be an LBMS. Optionally, the control circuit 101 and the first battery 102 can be physically packaged together and connected to a terminal via a wiring harness interface. The terminal obtains power from the first battery 102. For example, if the terminal is a vehicle, the control circuit 101 and the first battery 102 can be physically packaged together and connected to the vehicle via a wiring harness interface, with the first battery 102 powering the control circuit 101 and the ECU on the vehicle.

[0082] Furthermore, the control circuit 101 includes a control unit 1011, a power management unit 1012, a transceiver unit 1013, and a switching unit 1014.

[0083] The control unit 1011 is connected to the power management unit 1012. The power management unit 1012 can supply power to the control unit 1011 and can also send a trigger signal (referred to as the first trigger signal for easy distinction) to the control unit 1011. Correspondingly, the control unit 1011 can receive the trigger signal from the power management unit 1012. For example, the control unit 1011 can be a microcontroller unit (MCU) in the LBMS, and the power management unit 1012 can be a power management chip in the LBMS. For example, the power management unit 1012 can send the first trigger signal to the control unit 1011, which is used to wake up the control unit 1011. After receiving the first trigger signal from the power management unit 1012, the control unit 1011 enters a normal operating state, which consumes more power and causes significant power loss to the first battery 102. Optionally, the first trigger signal can be implemented using voltage.

[0084] The transceiver unit 1013 receives a first signal, which is used to wake up the control unit 1011. For example, the transceiver unit can be a controller area network (CAN) transceiver in an LBMS, capable of transmitting and receiving signals via a CAN bus. Optionally, the aforementioned first trigger signal has the same function as the first signal, both used to wake up the control unit 1011, and the aforementioned first trigger signal can also be replaced by the first signal. Optionally, after receiving the first signal, the transceiver unit 1013 can send the first signal to the power management unit 1012. Further, the power management unit 1012 receives the first signal and sends the first trigger signal to the control unit 1011 to wake up the control unit 1011. Optionally, the first signal can be implemented via a message.

[0085] Low-voltage lithium batteries play a crucial role in vehicle energy supply. When their charge level falls below a certain threshold, the low-voltage lithium battery disconnects from external discharge (e.g., disconnects power to the ECU), and the LBMS enters sleep mode. At this time, the battery pack inside the low-voltage lithium battery still supplies power to the LBMS, and the ECU continues to wake up the LBMS. Once awakened, the LBMS operates normally, consuming significant power and continuously depleting the battery pack's charge. In this scenario, if the user drives the vehicle for an extended period or travels a long distance to an after-sales service point, the battery pack may be depleted, causing permanent damage to the low-voltage lithium battery and incurring high costs for replacement / repair. For example, in this embodiment, when the remaining charge of the first battery 102 falls below a certain threshold, the first battery 102 disconnects from external discharge, but still supplies power to the control circuit 101. If the transceiver unit 1013 wakes up the control unit 1011 through the first signal, the control unit 1011 will be in normal working state after being woken up. It consumes a lot of power and will continuously consume the power of the first battery 102, which may cause the first battery 102 to run out of power and cause permanent damage to the first battery 102.

[0086] In view of this, the control circuit 101 provided in this application also includes a switching unit 1014.

[0087] The switching unit 1014 has both on and off functions. The switching unit 1014 can be an electronic component that can open a circuit, interrupt current, or divert current to another circuit. For example, the switching unit 1014 has one or more electronic contacts. "Closed" means the electronic contacts are conducting, allowing current to flow; "open" means the electronic contacts are not conducting, forming an open circuit and preventing current from flowing. For example, the switching unit 1014 can be a switch in the form of a thyristor or transistor, etc., without limitation.

[0088] Switching unit 1014 controls power management unit 1012 to receive a first signal. Control unit 1011 is connected to switching unit 1014. Optionally, switching unit 1014 is in a closed state by default, and power management unit 1012 can receive the first signal. Control unit 1011 can send a control signal to switching unit 1014 when the first battery 102 and / or control circuit 101 meet a first condition. The control signal is used to control switching unit 1014 to open. For example, when switching unit 1014 is in the open state, power management unit 1012 cannot receive the first signal. That is, when switching unit 1014 is in the open state, control unit 1011 cannot be woken up by the first signal. Thus, when control unit 1011 cannot be woken up, it can enter a low-power operating state with lower power consumption and less power loss to the first battery 102.

[0089] Optionally, the first condition includes the remaining charge of the first battery 102 being lower than a first threshold, and / or the control circuit 101 malfunctioning. The first threshold is a preset value, which may be related to factors such as the rated capacity and model of the first battery. For example, the first threshold may be 5% of the rated capacity of the first battery, or 10% of the rated capacity of the first battery. Alternatively, the first condition may include the duration for which the remaining charge of the first battery 102 is lower than the first threshold being greater than a first duration. If the duration for which the remaining charge of the first battery is lower than the first threshold is greater than the first duration, it is assumed that no other power supply device is available to replenish the first battery, meaning the remaining charge of the first battery is low and cannot be replenished. If the control circuit is still operating normally at this time, the power consumption is high, which can easily lead to the depletion of the first battery, causing permanent damage to the low-voltage lithium battery.

[0090] In the embodiment shown in Figure 1, when the first battery 102 and / or the control circuit 101 meet the first condition, the control unit 1011 can control the switch unit 1014 to disconnect via a control signal, so that the power management unit 1012 cannot receive the first signal, and thus cannot wake up the control unit 1011 via the first signal. In this way, in some scenarios (e.g., when the remaining charge of the first battery is below a first threshold, and / or, when the control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing the control unit from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0091] The basic structure of the control circuit has been introduced above. The following section introduces some possible designs of this application.

[0092] As shown in Figure 2, the control circuit 101 provided in this embodiment includes a control unit 1011, a power management unit 1012, a transceiver unit 1013, and a first switch unit 1015.

[0093] Optionally, the control circuit 101 is connected to the first battery 102, and the control unit 1011 is connected to the power management unit 1012. The first battery 102 and the power management unit 1012 are described in the foregoing related descriptions.

[0094] In some possible designs, the switching unit 1014 shown in FIG1 includes a first switching unit, for example, the switching unit 1014 shown in FIG1 includes the first switching unit 1015 shown in FIG2. Exemplarily, the first switching unit 1015 can be a switch in the form of a thyristor or transistor, etc., without limitation.

[0095] Optionally, as shown in Figure 2, there is no connection between the power management unit 1012 and the transceiver unit 1013, or the transceiver unit 1013 does not support the transmission of the first signal. For example, the transceiver unit 1013 may be a transceiver that does not support wake-up, or there is no connection between the inhibit (INH) pin of the transceiver unit 1013 and the power management unit 1012.

[0096] As shown in Figure 2, the first switching unit 1015 is connected to the power management unit 1012 and the first ECU 103, respectively. Exemplarily, the first switching unit 1015 can be connected to the power management unit 1012 and the first ECU 103 via hardwired circuitry. Optionally, the first switching unit 1015 is in a closed state by default, and the first ECU 103 can wake up the control unit 1011 via this hardwired circuitry. Exemplarily, the first switching unit 1015 can receive a first signal from the first ECU 103, which is used to wake up the control unit 1011. Optionally, after receiving the first signal, the first switching unit 1015 can send the first signal to the power management unit 1012. Further, the power management unit 1012 receives the first signal and sends a first trigger signal to the control unit 1011 to wake up the control unit 1011.

[0097] Control unit 1011 is connected to first switching unit 1015. For example, control unit 1011 can be connected to first switching unit 1015 via hard-wired circuitry. Control unit 1011 can be used to send a first control signal to first switching unit 1015 when first battery 102 and / or control circuit 101 meet a first condition. The first control signal is used to control first switching unit 1015 to disconnect. The first condition is described in the foregoing related description.

[0098] The first switching unit 1015 is used to control the power management unit 1012 to receive a first signal from the first ECU 103. For example, when the first switching unit 1015 is in the off state, the power management unit 1012 cannot receive the first signal from the first ECU 103, meaning there is no transmission of the first signal between the first ECU 103 and the power management unit 1012. In other words, when the first switching unit 1015 is in the off state, the first ECU 103 cannot send the first signal to the power management unit 1012, meaning the first ECU 103 cannot wake up the control unit 1011 via the first signal. Thus, when the control unit 1011 cannot be woken up, it can enter a low-power operating state, resulting in lower power consumption and less power loss to the first battery 102.

[0099] Optionally, the control circuit 101 is connected to the user-operable switch unit 104. For example, when the control circuit 101 disconnects the power supply from the first battery 102 and the control unit 1011 enters a sleep state (or low-power operating state), the control circuit 101 can receive a first signal from the user-operable switch unit 104 to wake up the control unit 1011. The control unit 1011 can then restore power supply from the first battery 102 via a software algorithm. For example, if the first battery 102 and / or the control circuit 101 meet a first condition, the control unit 1011 can control the first switch unit 1015 to disconnect via a first control signal, preventing the first ECU 103 from waking up the control unit 1011 via the first signal. When the control circuit 101 receives a first signal from the user-operable switch unit 104 and the remaining power of the first battery 102 is higher than the first threshold, the control unit 1011 may send a sixth control signal to the first switch unit 1015. The sixth control signal is used to control the first switch unit 1015 to close, so that the first ECU 103 can wake up the control unit 1011 through the first signal.

[0100] In the embodiment shown in Figure 2, when the first battery 102 and / or control circuit 101 meet the first condition, the control unit 1011 can control the first switch unit 1015 to disconnect via a first control signal, so that the power management unit 1012 cannot receive the first signal from the first ECU 103, and the first ECU 103 cannot wake up the control unit 1011 via the first signal. Thus, in some scenarios (e.g., the remaining charge of the first battery is below a first threshold, and / or, the control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing the control unit from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0101] As shown in Figure 3, the control circuit 101 provided in this embodiment includes a control unit 1011, a power management unit 1012, a transceiver unit 1013, and a second switching unit 1016. For example, the second switching unit 1016 can be a switch in the form of a thyristor or transistor, etc., and is not limited here.

[0102] Optionally, the control circuit 101 is connected to the first battery 102, and the control unit 1011 is connected to the power management unit 1012. The first battery 102 and the power management unit 1012 are described in the foregoing related descriptions.

[0103] In some possible designs, the switching unit 1014 shown in FIG1 includes a second switching unit, for example, the switching unit 1014 shown in FIG1 includes the second switching unit 1016 shown in FIG3.

[0104] As shown in Figure 3, the second switch unit 1016 is connected to both the power management unit 1012 and the transceiver unit 1013. For example, the second switch unit 1016 is connected to the INH pins of both the power management unit 1012 and the transceiver unit 1013. Optionally, the second switch unit 1016 is in a closed state by default. The second switch unit 1016 can receive a first signal from the transceiver unit 1013, which is used to wake up the control unit 1011. Optionally, after receiving the first signal, the second switch unit 1016 can send the first signal to the power management unit 1012. Further, the power management unit 1012 receives the first signal and sends a first trigger signal to the control unit 1011 to wake up the control unit 1011.

[0105] Control unit 1011 is connected to second switching unit 1016. For example, control unit 1011 is connected to second switching unit 1016 via hard-wired circuitry. Control unit 1011 can be used to send a second control signal to second switching unit 1016 when the first battery 102 and / or control circuit 101 meet a first condition. The second control signal is used to control second switching unit 1016 to disconnect. The first condition is described in the foregoing related description.

[0106] The second switching unit 1016 is used to control the power management unit 1012 to receive the first signal from the transceiver unit 1013. When the second switching unit 1016 is in the off state, the power management unit 1012 cannot receive the first signal from the transceiver unit 1013, that is, there is no transmission of the first signal between the power management unit 1012 and the transceiver unit 1013. In other words, when the second switching unit 1016 is in the off state, the transceiver unit 1013 cannot send the first signal to the power management unit 1012, that is, the transceiver unit 1013 cannot wake up the control unit 1011 through the first signal. Thus, when the control unit 1011 cannot be woken up, it can enter a low-power operating state with lower power consumption and less power loss to the first battery 102.

[0107] Optionally, the transceiver unit 1013 is connected to the first ECU 103. Alternatively, the transceiver unit 1013 and the first ECU 103 can be connected via a CAN bus, and the transceiver unit 1013 can receive a first signal from the first ECU 103 via the CAN bus. This first signal is used to wake up the control unit 1011. When the second switch unit 1016 is in the off state, the first ECU 103 cannot wake up the control unit 1011 via the CAN bus.

[0108] Optionally, the control circuit 101 is connected to the user-operable switch unit 104. The control circuit 101 can receive a first signal from the user-operable switch unit 104 to wake up the control unit 1011. For example, if the first battery 102 and / or the control circuit 101 meet a first condition, the control unit 1011 can control the second switch unit 1016 to open via a second control signal, so that the transceiver unit 1013 cannot wake up the control unit 1011 via the first signal. If the control circuit 101 receives the first signal from the user-operable switch unit 104 and the remaining power of the first battery 102 is higher than a first threshold, the control unit 1011 can send a seventh control signal to the second switch unit 1016. The seventh control signal is used to control the second switch unit 1016 to close, so that the transceiver unit 1013 can wake up the control unit 1011 via the first signal.

[0109] In the embodiment shown in Figure 3, when the first battery 102 and / or the control circuit 101 meet the first condition, the control unit 1011 can control the second switch unit 1016 to disconnect via a second control signal, so that the power management unit 1012 cannot receive the first signal from the transceiver unit 1013, and the transceiver unit 1013 cannot wake up the control unit 1011 via the first signal. Thus, in some scenarios (e.g., when the remaining charge of the first battery is below a first threshold, and / or, the control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing the control unit from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0110] As shown in Figure 4, the control circuit 101 provided in this embodiment includes a control unit 1011, a power management unit 1012, and a transceiver unit 1013. The transceiver unit 1013 includes a third switching unit 1017. For example, the third switching unit 1017 can be a switch in the form of a thyristor or transistor, etc., and is not limited here.

[0111] Optionally, the control circuit 101 is connected to the first battery 102, and the control unit 1011 is connected to the power management unit 1012. The first battery 102 and the power management unit 1012 are described in the foregoing related descriptions.

[0112] In some possible designs, the switch unit 1014 shown in FIG1 includes a third switch unit, for example, the switch unit 1014 shown in FIG1 includes the third switch unit 1017 shown in FIG4.

[0113] Optionally, the third switch unit 1017 is disposed between the input port and the output port of the transceiver unit 1013, as shown in Figure 3. The third switch unit 1017 is disposed between the first interface and the second interface of the transceiver unit 1013. Optionally, the third switch unit 1017 is in a closed state by default. The third switch unit 1017 can be used to transmit a first signal, which is used to wake up the control unit 1011. Optionally, after receiving the first signal from the second interface of the transceiver unit 1013, the third switch unit 1017 can send the first signal to the first interface of the transceiver unit 1013.

[0114] Control unit 1011 is connected to third switching unit 1017. For example, control unit 1011 is connected to third switching unit 1017 via hard-wired circuitry. Control unit 1011 can be used to send a third control signal to third switching unit 1017 when the first battery 102 and / or control circuit 101 meet a first condition. The third control signal is used to control third switching unit 1017 to disconnect. The first condition is described in the foregoing related description.

[0115] The third switching unit 1017 is used to control the power management unit 1012 to receive the first signal from the transceiver unit 1013. When the third switching unit 1017 is in the off state, the power management unit 1012 cannot receive the first signal from the transceiver unit 1013, that is, there is no transmission of the first signal between the power management unit 1012 and the transceiver unit 1013. In other words, when the third switching unit 1017 is in the off state, the transceiver unit 1013 cannot send the first signal to the power management unit 1012, that is, the transceiver unit 1013 cannot wake up the control unit 1011 through the first signal. Thus, when the control unit 1011 cannot be woken up, it can enter a low-power operating state with lower power consumption and less power loss to the first battery 102.

[0116] The power management unit 1012 is connected to the transceiver unit 1013. For example, the power management unit 1012 is connected to the first interface of the transceiver unit 1013 via a hardwired circuit. Exemplarily, the first interface of the transceiver unit 1013 can send a first signal to the power management unit 1012. Upon receiving the first signal, the power management unit 1012 sends a first trigger signal to the control unit 1011 to wake up the control unit 1011.

[0117] Optionally, the transceiver unit 1013 is connected to the first ECU 103. For example, the first ECU 103 is connected to the second interface of the transceiver unit 1013 via a CAN bus. The second interface of the transceiver unit 1013 can receive a first signal from the first ECU 103 via the CAN bus. The first signal is used to wake up the control unit 1011.

[0118] Optionally, the control circuit 101 is connected to the user-operable switch unit 104. The control circuit 101 can receive a first signal from the user-operable switch unit 104 to wake up the control unit 1011. For example, if the first battery 102 and / or the control circuit 101 meet a first condition, the control unit 1011 can control the third switch unit 1017 to open via a third control signal, so that the transceiver unit 1013 cannot wake up the control unit 1011 via the first signal. If the control circuit 101 receives the first signal from the user-operable switch unit 104 and the remaining power of the first battery 102 is higher than a first threshold, the control unit 1011 can send an eighth control signal to the third switch unit 1017. The eighth control signal is used to control the third switch unit 1017 to close, so that the transceiver unit 1013 can wake up the control unit 1011 via the first signal.

[0119] In the embodiment shown in Figure 4, when the first battery 102 and / or the control circuit 101 meet the first condition, the control unit 1011 can control the third switch unit 1017 to disconnect via a third control signal, so that the power management unit 1012 cannot receive the first signal from the transceiver unit 1013, and the transceiver unit 1013 cannot wake up the control unit 1011 via the first signal. Thus, in some scenarios (e.g., when the remaining power of the first battery is below a first threshold, and / or, the control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing the control unit from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0120] As shown in Figure 5, the control circuit 101 provided in this embodiment includes a control unit 1011, a power management unit 1012, a transceiver unit 1013, and a fourth switching unit 1018. For example, the fourth switching unit 1018 can be a switch in the form of a thyristor or transistor, etc., and is not limited here.

[0121] Optionally, the control circuit 101 is connected to the first battery 102, and the control unit 1011 is connected to the power management unit 1012. The first battery 102 and the power management unit 1012 are described in the foregoing related descriptions.

[0122] In some possible designs, the switch unit 1014 shown in FIG1 includes a fourth switch unit, for example, the switch unit 1014 shown in FIG1 includes the fourth switch unit 1018 shown in FIG5.

[0123] As shown in Figure 5, the fourth switching unit 1018 is connected to both the power management unit 1012 and the transceiver unit 1013. The fourth switching unit 1018 is used to control the power management unit 1012 to supply power to the transceiver unit 1013. For example, the fourth switching unit 1018 is disposed on the power supply line between the power management unit and the transceiver unit 1013.

[0124] Optionally, the fourth switch unit 1018 is in a closed state by default. The power management unit 1012 can supply power to the transceiver unit 1013 through the fourth switch unit 1018, so that the transceiver unit 1013 can receive a first signal, which is used to wake up the control unit 1011. Optionally, after receiving the first signal, the transceiver unit 1013 can send the first signal to the power management unit 1012. Further, the power management unit 1012 receives the first signal and sends a first trigger signal to the control unit 1011 to wake up the control unit 1011.

[0125] Control unit 1011 is connected to fourth switch unit 1018. For example, control unit 1011 is connected to fourth switch unit 1018 via a hardwired circuit. Control unit 1011 can be used to send a fourth control signal to fourth switch unit 1018 when the first battery 102 and / or control circuit 101 meet a first condition. The fourth control signal is used to control fourth switch unit 1018 to disconnect. The first condition is described in the foregoing related description.

[0126] When the fourth switch unit 1018 is in the off state, the power management unit 1012 cannot supply power to the transceiver unit 1013. Therefore, the transceiver unit 1013 cannot receive the first signal, nor can it send the first signal to the power management unit 1012. In other words, there is no transmission of the first signal between the power management unit 1012 and the transceiver unit 1013. That is, when the fourth switch unit 1018 is in the off state, the transceiver unit 1013 cannot send the first signal to the power management unit 1012, meaning the transceiver unit 1013 cannot wake up the control unit 1011 via the first signal. Thus, when the control unit 1011 cannot be woken up, it can enter a low-power operating state with lower power consumption and less drain on the first battery 102.

[0127] Optionally, the transceiver unit 1013 is connected to the first ECU 103. Alternatively, the transceiver unit 1013 and the first ECU 103 can be connected via a CAN bus, and the transceiver unit 1013 can receive a first signal from the first ECU 103 via the CAN bus. This first signal is used to wake up the control unit 1011. When the fourth switch unit 1018 is in the off state, the first ECU 103 cannot wake up the control unit 1011 via the CAN bus.

[0128] Optionally, the control circuit 101 is connected to the user-operable switch unit 104. The control circuit 101 can receive a first signal from the user-operable switch unit 104 to wake up the control unit 1011. For example, if the first battery 102 and / or the control circuit 101 meet a first condition, the control unit 1011 can control the fourth switch unit 1018 to disconnect via a fourth control signal, so that the transceiver unit 1013 cannot wake up the control unit 1011 via the first signal. If the control circuit 101 receives the first signal from the user-operable switch unit 104 and the remaining power of the first battery 102 is higher than a first threshold, the control unit 1011 can send a ninth control signal to the fourth switch unit 1018. The ninth control signal controls the fourth switch unit 1018 to close, so that the power management unit 1012 can supply power to the transceiver unit 1013, allowing the transceiver unit 1013 to wake up the control unit 1011 via the first signal.

[0129] In the embodiment shown in Figure 5, when the first battery 102 and / or the control circuit 101 meet the first condition, the control unit 1011 can control the fourth switch unit 1018 to disconnect via a fourth control signal, so that the power management unit 1012 cannot supply power to the transceiver unit 1013, and the transceiver unit 1013 cannot wake up the control unit 1011 via the first signal. Thus, in some scenarios (e.g., the remaining power of the first battery is lower than the first threshold, and / or, the control circuit is faulty), this application can disconnect the effective wake-up source for the control unit, so that the control unit cannot be woken up, and the control unit can enter a low-power operating state, which can extend the usable time of the low-voltage lithium battery and effectively protect the service life of the low-voltage lithium battery.

[0130] As another possible design, the control circuit may not include a switching unit. The following describes another possible control circuit with reference to Figure 6.

[0131] As shown in Figure 6, the battery system provided in this application embodiment includes a control circuit 201 and a first battery 202.

[0132] Optionally, the control circuit 201 is connected to the first battery 202, which powers the control circuit 201. The control circuit 201 can control the first battery 202 to discharge externally or disconnect its external discharge. For example, the first battery 202 can be a low-voltage lithium battery (e.g., a lithium battery capable of providing 12V / 24V), and the control circuit 201 can be an LBMS. Optionally, the control circuit 201 and the first battery 202 can be physically packaged together and connected to a terminal via a wiring harness interface. The terminal obtains power from the first battery 202. For example, if the terminal is a vehicle, the control circuit 201 and the first battery 202 can be physically packaged together and connected to the vehicle via a wiring harness interface, with the first battery 202 powering the control circuit 201 and the ECU on the vehicle.

[0133] Furthermore, the control circuit 201 includes a control unit 2011, a power management unit 2012, and a transceiver unit 2013.

[0134] The control unit 2011 is connected to the power management unit 2012. The power management unit 2012 can supply power to the control unit 2011 and can also send a trigger signal (referred to as the second trigger signal for easy distinction) to the control unit 2011. Correspondingly, the control unit 2011 can receive the trigger signal from the power management unit 2012. For example, the control unit 2011 can be an MCU in the LBMS, and the power management unit 2012 can be a power management chip in the LBMS. For example, the power management unit 2012 can send the second trigger signal to the control unit 2011, which is used to wake up the control unit 2011. After receiving the second trigger signal from the power management unit 2012, the control unit 2011 enters a normal operating state, which consumes more power and causes significant power loss to the first battery 202. Optionally, the second trigger signal can be implemented using voltage.

[0135] The transceiver unit 2013 is used to receive a first signal, which is used to wake up the control unit 2011. Optionally, the aforementioned second trigger signal has the same function as the first signal, both used to wake up the control unit 2011, and the aforementioned second trigger signal can also be replaced by the first signal.

[0136] The power management unit 2012 is connected to the transceiver unit 2013. Optionally, after receiving the first signal, the transceiver unit 2013 can send the first signal to the power management unit 2012. Further, the power management unit 2012 receives the first signal and sends a second trigger signal to the control unit 2011 to wake up the control unit 2011.

[0137] Optionally, the transceiver unit 2013 may include a management unit 2014, which is used to manage the signal transmission and reception of the transceiver unit 2013.

[0138] As one possible implementation, the control unit 2011 is communicatively connected to the management unit 2014. There are several possible communication methods between the control unit 2011 and the management unit 2014; some of these are described below.

[0139] Method 1: Establish communication between the control unit 2011 and the management unit 2014 through the existing connections within the control circuit 201. For example, the control unit 2011 sends control signals to the management unit 2014 via the power management unit 2012; that is, the control unit 2011 sends control signals to the power management unit 2012, which then forwards the control signals to the management unit 2014 in the transceiver unit 2013.

[0140] Method 2: The control unit 2011 and the management unit 2014 have separate line connections, and the control unit 2011 directly sends control signals to the management unit 2014. For example, the control unit 2011 is connected to the management unit 2014 via a hard-wired circuit, and the control unit 2011 can directly send control signals to the management unit 2014.

[0141] Method 3: The control unit 2011 sends the control signal to the management unit 2014 wirelessly.

[0142] Of course, in actual use, there may be more ways for the control unit 2011 and the management unit 2014 to communicate. This is not limited here and will not be listed one by one.

[0143] In one possible implementation, the control unit 2011 can send a fifth control signal to the management unit 2014 when the first battery 102 and / or control circuit 101 meet a first condition. The fifth control signal is used to control the management unit 2014 to block the transceiver unit 2013 from transmitting the first signal. The first condition is described above. Optionally, the management unit 2014 has a partial networking (PN) function. For example, after receiving the fifth control signal, the management unit 2014 can filter related identifiers (e.g., identification IDs) to block the transceiver unit 2013 from transmitting the first signal, preventing the transceiver unit 2013 from sending the first signal to the power management unit 2012, i.e., preventing the transceiver unit 2013 from waking up the control unit 2011 via the first signal. Thus, when the control unit 2011 cannot be woken up, it can enter a low-power operating state with lower power consumption and less power loss to the first battery 202.

[0144] Alternatively, the transceiver unit 2013 is connected to the first ECU 203. For example, the first ECU 203 is connected to the transceiver unit 2013 via a CAN bus, and the transceiver unit 2013 can receive a first signal from the first ECU 203 via the CAN bus. The first signal is used to wake up the control unit 2011.

[0145] Optionally, the control circuit 201 is connected to the user-operable switch unit 204. For example, when the control circuit 201 disconnects the power supply from the first battery 202 and the control unit 2011 enters a sleep state, the control circuit 201 can receive a first signal from the user-operable switch unit 204 to wake up the control unit 2011. The control unit 2011 can then restore power supply from the first battery 202 via a software algorithm. For example, if the first battery 202 and / or the control circuit 201 meet a first condition, the control unit 2011 can control the management unit 2014 via a fifth control signal to block the transmission of the first signal by the transceiver unit 2013, preventing the transceiver unit 2013 from waking up the control unit 2011 via the first signal. When the control circuit 201 receives a first signal from the user-operable switch unit 204 and the remaining power of the first battery 202 is higher than the first threshold, the control unit 2011 can send a tenth control signal to the management unit 2014. The tenth control signal is used to control the management unit 2014 to resume the transmission of the first signal by the transceiver unit 2013, so that the transceiver unit 2013 can wake up the control unit 2011 through the first signal.

[0146] In one possible implementation, the transceiver unit 2013 does not include the management unit 2014, and the control unit 2011 is connected to the power management unit 2014 and / or the transceiver unit 2013. For example, the control unit 2011 is connected to the transceiver unit 2013 via a hardwired circuit, or the control unit 2011 is connected to the transceiver unit 2013 via wireless communication. The control unit 2011 can be used to send a fifth control signal to the power management unit 2014 and / or the transceiver unit 2013 when the first battery 102 and / or the control circuit 101 meets a first condition. The fifth control signal is used to control the transmission of the first signal between the power management unit 2014 and the transceiver unit 2013. That is, this application uses the fifth control signal to prevent the transceiver unit 2013 from sending the first signal to the power management unit 2012, i.e., the transceiver unit 2013 cannot wake up the control unit 2011 via the first signal. Thus, when the control unit 2011 cannot be woken up, it can enter a low-power operating state with low power consumption and less power loss to the first battery 202.

[0147] In the embodiment shown in Figure 6, the control unit 2011 can, when the first battery 202 and / or the control circuit 201 meet the first condition, control the shielding of the transmission of the first signal via a fifth control signal, so that other devices cannot wake up the control unit 2011 via the first signal. Thus, in some scenarios (e.g., when the remaining charge of the first battery is below a first threshold, and / or when the control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing it from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0148] The methods of the embodiments of this application will be described in detail below.

[0149] Please refer to Figure 7, which is a schematic flowchart of a control method provided in an embodiment of this application. Optionally, the method can be applied to a first control circuit, such as the control circuit 101 shown in Figures 1, 2, 3, 4 or 5, and can be executed by the control unit 1011 in the control circuit 101.

[0150] The control method shown in Figure 7 may include step S701. Step S701 is as follows:

[0151] Step S701: The control device sends a control signal.

[0152] The control device can be a control circuit or a control unit. For example, the control device can be the control circuit 101 shown in Figure 1, Figure 2, Figure 3, Figure 4 or Figure 5. Alternatively, the control device can be the control unit 1011 in the control circuit 101 shown in Figure 1, Figure 2, Figure 3, Figure 4 or Figure 5.

[0153] In one possible implementation, the first control circuit includes a control unit, a power management unit, a transceiver unit, and a switching unit. The control unit is connected to the power management unit, and the control unit is also connected to the switching unit. This first control circuit is, for example, the control circuit 101 shown in Figure 1. The connection relationships between the various units in the first control circuit can be found in the relevant description in Figure 1 above, and will not be repeated here.

[0154] Furthermore, when the first battery and / or control circuit meet the first condition, the control device sends a control signal to the switching unit. The control signal is used to control the switching unit to open, and the first battery is used to power the first control circuit.

[0155] The transceiver unit receives a first signal, which is used to wake up the control unit. The switch unit controls the power management unit to receive the first signal.

[0156] For example, the switch unit is in a closed state by default, at which time the power management unit can receive the first signal. When the switch unit is opened by a control signal, the switch unit is in an open state, and the power management unit cannot receive the first signal. That is, when the switch unit is in an open state, the control unit cannot be woken up by the first signal. Thus, when the control unit cannot be woken up, it can enter a low-power operating state with lower power consumption and less power loss to the first battery. In some scenarios (e.g., when the remaining power of the first battery is lower than a first threshold, and / or, when the first control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, making the control unit unable to be woken up. The control unit can then enter a low-power operating state, which can extend the usable time of the low-voltage lithium battery and effectively protect the lifespan of the low-voltage lithium battery.

[0157] Optionally, the first condition includes the remaining charge of the first battery being lower than a first threshold, and / or a malfunction in the first control circuit. The first threshold is a preset value and may be related to factors such as the rated capacity and model of the first battery. For example, the first threshold may be 5% of the rated capacity of the first battery, or 10% of the rated capacity of the first battery. Further, the first condition may include the duration for which the remaining charge of the first battery 102 is lower than the first threshold being greater than a first duration. Related descriptions are as described above and will not be repeated here.

[0158] There are several possible designs for the switching unit in the first control circuit. Several possible designs are introduced below.

[0159] Design 1: The switching unit includes a first switching unit, such as the first switching unit 1015 shown in Figure 2. The first switching unit is connected to both the power management unit and the first ECU. The control unit is connected to the first switching unit. There is no connection between the power management unit and the transceiver unit, or the transceiver unit does not support the transmission of the first signal. For related descriptions, please refer to the aforementioned description of Figure 2, which will not be repeated here.

[0160] Furthermore, the control signal includes a first control signal, which is sent by the control device to the first switching unit when the first battery and / or the first control circuit meets a first condition. The first control signal is used to control the first switching unit to open. The first switching unit is used to control the power management unit to receive a first signal from the first ECU.

[0161] For example, the first switch unit is in a closed state by default, and the power management unit can receive a first signal from the first ECU to wake up the control unit. When the first switch unit is opened by controlling it with a first control signal, the first switch unit is in an open state. At this time, the power management unit cannot receive the first signal from the first ECU, meaning there is no transmission of the first signal between the first ECU and the power management unit. In other words, when the first switch unit is in an open state, the first ECU cannot send a first signal to the power management unit, meaning the first ECU cannot wake up the control unit via the first signal. Thus, when the control unit cannot be woken up, it can enter a low-power operating state, resulting in lower power consumption and less drain on the first battery.

[0162] Optionally, the control signal further includes a sixth control signal, and the control device can also send the sixth control signal to the first switching unit. The sixth control signal is used to control the first switching unit to close, so that the power management unit can receive the first signal from the first ECU, and the first ECU can wake up the control unit through the first signal. For example, as shown in FIG2, when the control circuit 101 receives the first signal from the user-operable switching unit 104 and the remaining power of the first battery 102 is higher than the first threshold, the control unit 1011 can send the sixth control signal to the first switching unit 1015. The sixth control signal is used to control the first switching unit 1015 to close, so that the power management unit 1012 can receive the first signal from the first ECU, and the first ECU 103 can wake up the control unit 1011 through the first signal.

[0163] Design 2: The switching unit includes a second switching unit, such as the second switching unit 1016 shown in Figure 3. The second switching unit is connected to both the power management unit and the transceiver unit, and the control unit is connected to the second switching unit. For related descriptions, please refer to the aforementioned description of Figure 3, which will not be repeated here.

[0164] Furthermore, the control signal includes a second control signal, which is sent by the control device to the second switching unit when the first battery and / or the first control circuit meets the first condition. The second control signal is used to control the second switching unit to open. The second switching unit is used to control the power management unit to receive the first signal from the transceiver unit.

[0165] For example, the second switch unit is in a closed state by default, and the power management unit can receive the first signal from the transceiver unit to wake up the control unit. When the second switch unit is opened by the second control signal, it is in an open state. At this time, the power management unit cannot receive the first signal from the transceiver unit, meaning there is no transmission of the first signal between the power management unit and the transceiver unit. In other words, when the second switch unit is in an open state, the transceiver unit cannot send the first signal to the power management unit, and therefore cannot wake up the control unit using the first signal. Thus, when the control unit cannot be woken up, it can enter a low-power operating state with lower power consumption and less drain on the first battery.

[0166] Optionally, the control signal includes a seventh control signal, and the control device may also send the seventh control signal to the second switching unit. The seventh control signal is used to control the second switching unit to close, so that the power management unit can receive the first signal from the transceiver unit, and the transceiver unit can wake up the control unit through the first signal. For example, as shown in FIG3, when the control circuit 101 receives the first signal from the user-operable switching unit 104 and the remaining power of the first battery 102 is higher than the first threshold, the control unit 1011 may send the seventh control signal to the second switching unit 1016. The seventh control signal is used to control the second switching unit 1016 to close, so that the power management unit 1012 can receive the first signal from the transceiver unit 1013, and the transceiver unit 1013 can wake up the control unit 1011 through the first signal.

[0167] Design 3 includes a third switching unit, such as the third switching unit 1017 shown in Figure 4. The third switching unit is located between the input and output ports of the transceiver unit. The power management unit is connected to the transceiver unit, and the control unit is connected to the third switching unit. For related descriptions, please refer to the preceding description of Figure 4; further details will not be repeated here.

[0168] Furthermore, the control signal includes a third control signal, which is sent by the control device to the third switching unit when the first battery and / or the first control circuit meets the first condition. The third control signal is used to control the third switching unit to open. The third switching unit is used to control the power management unit to receive the first signal from the transceiver unit.

[0169] For example, the third switch unit is in a closed state by default, and the power management unit can receive the first signal from the transceiver unit to wake up the control unit. When the third switch unit is opened by controlling it with the first control signal, the third switch unit is in an open state. At this time, the power management unit cannot receive the first signal from the transceiver unit, that is, there is no transmission of the first signal between the power management unit and the transceiver unit. In other words, when the third switch unit is in an open state, the transceiver unit cannot send the first signal to the power management unit, that is, the transceiver unit cannot wake up the control unit through the first signal. Thus, when the control unit cannot be woken up, it can enter a low-power operating state with lower power consumption and less drain on the first battery.

[0170] Optionally, the control signal includes an eighth control signal, and the control device may also send the eighth control signal to the third switching unit. The eighth control signal is used to control the third switching unit to close, so that the power management unit can receive the first signal from the transceiver unit, and the transceiver unit can wake up the control unit through the first signal. For example, as shown in FIG4, when the control circuit 101 receives the first signal from the user-operable switching unit 104 and the remaining power of the first battery 102 is higher than the first threshold, the control unit 1011 may send the eighth control signal to the third switching unit 1017. The eighth control signal is used to control the third switching unit 1017 to close, so that the power management unit 1012 can receive the first signal from the transceiver unit 1013, and the transceiver unit 1013 can wake up the control unit 1011 through the first signal.

[0171] Design four includes a fourth switching unit, such as the fourth switching unit 1018 shown in Figure 5. The fourth switching unit is connected to both the power management unit and the transceiver unit, and the control unit is connected to the second switching unit. For related descriptions, please refer to the aforementioned description of Figure 4, which will not be repeated here.

[0172] Furthermore, the control signal includes a fourth control signal, which is sent by the control device to the fourth switching unit when the first battery and / or the first control circuit meets the first condition. The fourth control signal is used to control the fourth switching unit to open. The fourth switching unit is used to control the power management unit to supply power to the transceiver unit.

[0173] For example, the fourth switch unit is in a closed state by default. The power management unit can supply power to the transceiver unit through the fourth switch unit, so that the transceiver unit can receive the first signal, which is used to wake up the control unit. Optionally, after receiving the first signal, the transceiver unit can send the first signal to the power management unit to wake up the control unit. When the fourth switch unit is opened by the fourth control signal, the fourth switch unit is in an open state. At this time, the power management unit cannot supply power to the transceiver unit, so the transceiver unit cannot receive the first signal, nor can it send the first signal to the power management unit. That is, there is no transmission of the first signal between the power management unit and the transceiver unit. In other words, when the fourth switch unit is in an open state, the transceiver unit cannot send the first signal to the power management unit, that is, the transceiver unit cannot wake up the control unit through the first signal. Thus, when the control unit cannot be woken up, it can enter a low-power operating state with lower power consumption and less power consumption of the first battery.

[0174] Optionally, the control signal includes a ninth control signal, and the control device may also send the ninth control signal to the fourth switching unit. The ninth control signal is used to control the fourth switching unit to close, so that the power management unit can supply power to the transceiver unit, and the transceiver unit can wake up the control unit through the first signal. For example, as shown in FIG5, when the control circuit 101 receives a first signal from the user-operable switching unit 104 and the remaining power of the first battery 102 is higher than a first threshold, the control unit 1011 may send a ninth control signal to the fourth switching unit 1018. The ninth control signal is used to control the fourth switching unit 1018 to close, so that the power management unit 1012 can supply power to the transceiver unit 1013, and the transceiver unit 1013 can wake up the control unit 1011 through the first signal.

[0175] In summary, this application can disconnect the effective wake-up source of the control unit in multiple ways, making the control unit unable to be woken up. The control unit can enter a low-power operating state, which can extend the usable time of the low-voltage lithium battery and effectively protect the service life of the low-voltage lithium battery.

[0176] In the embodiment shown in Figure 7, the control device can send a control signal to the switching unit to disconnect the switching unit, preventing the power management unit from receiving the first signal and thus preventing the control unit from being woken up by the first signal. In some scenarios (e.g., when the remaining charge of the first battery is below a first threshold, and / or when the first control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing the control unit from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0177] Please refer to Figure 8, which is a flowchart illustrating another control method provided in an embodiment of this application. Optionally, this method can be applied to a second control circuit, such as the control circuit 201 shown in Figure 6, and can optionally be executed by the control unit 2011 in the control circuit 201.

[0178] The control method shown in Figure 8 may include step S801. Step S801 is as follows:

[0179] Step S801: The control device sends the fifth control signal.

[0180] The control device can be a control circuit or a control unit. For example, the control device can be the control circuit 201 shown in Figure 6. Alternatively, the control device can be the control unit 2011 in the control circuit 201 shown in Figure 6.

[0181] In one possible implementation, the second control circuit includes a control unit, a power management unit, and a transceiver unit. The control unit is connected to the power management unit, and the power management unit is connected to the transceiver unit. This second control circuit is, for example, the control circuit 201 shown in Figure 6. The connection relationships between the various units in the second control circuit are described in Figure 6 above and will not be repeated here.

[0182] The transceiver unit is used to receive a first signal, which is used to wake up the control unit. The first condition is described in the preceding relevant description and will not be repeated here.

[0183] Furthermore, when the first battery and / or the second control circuit meet the first condition, the control device sends a fifth control signal. The fifth control signal is used to control the shielding of the transmission of the first signal, and the first battery is used to power the second control circuit. Thus, this application can control the shielding of the transmission of the first signal through the fifth control signal, preventing other devices from waking up the control unit via the first signal. In some scenarios (e.g., when the remaining charge of the first battery is below a first threshold, and / or, the second control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing the control unit from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0184] The following describes two possible implementation methods for controlling the transmission of the shielded first signal using the fifth control signal.

[0185] As one possible implementation, the transceiver unit includes a management unit for managing the signal transmission and reception of the transceiver unit. For example, the transceiver unit in Figure 6 includes a management unit 2014.

[0186] Furthermore, the control device sends a fifth control signal to the management unit, which is used to control the management unit to shield the transceiver unit from transmitting the first signal.

[0187] For example, as shown in FIG6, when the first battery 102 and / or control circuit 101 meet the first condition, the control unit 2011 sends a fifth control signal to the management unit 2014. The fifth control signal is used to control the management unit 2014 to block the transmission of the first signal by the transceiver unit 2013. Optionally, the management unit 2014 has a PN function. For example, after receiving the fifth control signal, the management unit 2014 can block the transmission of the first signal by the transceiver unit 2013 by filtering related identifiers (e.g., ID), so that the transceiver unit 2013 cannot send the first signal to the power management unit 2012, i.e., the transceiver unit 2013 cannot wake up the control unit 2011 through the first signal. Thus, when the control unit 2011 cannot be woken up, it can enter a low-power operating state with lower power consumption and less power loss to the first battery 202.

[0188] Optionally, the control device may also send a tenth control signal to the management unit. The tenth control signal is used to control the management unit to resume the transmission of the first signal by the transceiver unit, so that the transceiver unit can wake up the control unit through the first signal. For example, as shown in FIG6, when the control circuit 201 receives the first signal from the user-operable switch unit 204 and the remaining power of the first battery 202 is higher than the first threshold, the control unit 2011 may send a tenth control signal to the management unit 2014. The tenth control signal is used to control the management unit 2014 to resume the transmission of the first signal by the transceiver unit 2013, so that the transceiver unit 2013 can wake up the control unit 2011 through the first signal.

[0189] As another possible implementation, the transceiver unit does not include a management unit, and the control unit is connected to the power management unit and / or the transceiver unit. For example, the control unit is connected to the transceiver unit via hard-wired circuitry, or the control unit is connected to the transceiver unit via wireless communication.

[0190] For example, as shown in FIG6, the control unit 2011 may send a fifth control signal to the power management unit 2014 and / or the transceiver unit 2013 when the first battery 102 and / or the control circuit 101 meet the first condition. The fifth control signal is used to control the transmission of the first signal between the power management unit 2014 and the transceiver unit 2013. In other words, this application uses the fifth control signal to prevent the transceiver unit 2013 from sending the first signal to the power management unit 2012, i.e., the transceiver unit 2013 cannot wake up the control unit 2011 through the first signal. Thus, when the control unit 2011 cannot be woken up, it can enter a low-power operating state with lower power consumption and less power loss to the first battery 202.

[0191] As another possible implementation, after receiving the first signal, the second control circuit can also receive a second signal. This second signal is used to cancel the wake-up of the control unit. For example, the vehicle can generate the second signal through vehicle control and send it to the second control circuit to cancel the vehicle's wake-up of the control unit.

[0192] In the embodiment shown in Figure 8, the control device can send a fifth control signal to control the shielding of the transmission of the first signal, so that other devices cannot wake up the control unit through the first signal. Thus, in some scenarios (e.g., when the remaining power of the first battery is below a first threshold, and / or, the second control circuit malfunctions), this application can disconnect the effective wake-up source for the control unit, preventing it from being woken up. The control unit can then enter a low-power operating state, extending the usable time of the low-voltage lithium battery and effectively ensuring its lifespan.

[0193] The methods of the embodiments of this application have been described in detail above. Below, some apparatuses for implementing the foregoing methods are described. It should be understood that the division of units in the apparatuses provided in the embodiments of this application is only a logical functional division; in actual implementation, they can be fully or partially integrated onto a single physical entity, or they can be physically separated.

[0194] Furthermore, the units or modules in the device can be implemented in the form of processor calling software. For example, the device includes a processor connected to a memory, which stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of each unit of the device. The processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is either internal or external to the device.

[0195] Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all units can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC), and the functionality of some or all of the above units is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD), such as a field-programmable gate array (FPGA). This PLD can include a large number of logic gates, and the connection relationships between these logic gates can be configured through configuration files to achieve the functionality of some or all of the above units. All units of the above device can be implemented entirely through processor-invoked software, entirely through hardware circuits, or partially through processor-invoked software with the remaining parts implemented through hardware circuits.

[0196] In this application embodiment, a processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a central processing unit (CPU) or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. These logical relationships are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units. Therefore, each unit in the device can be one or more processors (or processing circuits) configured to implement the above methods, such as a CPU, GPU, microprocessor, DSP, ASIC, FPGA, or a combination of at least two of these processor types.

[0197] Furthermore, the units or modules in the above devices can be integrated in whole or in part, or they can be implemented independently. In one implementation, these units or modules are integrated together as a system-on-a-chip (SOC). The SOC may include at least one processor for implementing any of the above methods or implementing the functions of the units in the device. The at least one processor may be of different types, such as CPU and FPGA.

[0198] Several possible devices are listed below.

[0199] Please refer to Figure 9, which is a schematic diagram of the structure of a control device provided in an embodiment of this application, namely, control device 90. Optionally, the control device 90 can be an independent device, such as the control circuit 101 shown in Figures 1, 2, 3, 4, or 5, or the control unit 1011 in the control circuit 101 shown in Figures 1, 2, 3, 4, or 5. Alternatively, the control device 90 can also be a component in an independent device (such as a node), such as a chip or integrated circuit. The control device 90 is used to implement the control method shown in Figure 7 above.

[0200] As shown in Figure 9, the control device 90 includes a transceiver module 901. The transceiver module 901 is used to perform one or more operations such as acquiring, receiving, listening, transmitting, and sending. For example, it is used to send a control signal when the first battery and / or control circuit meets a first condition; the control signal is used to control the switching unit to open. It further includes other operations for implementing the control method.

[0201] For related descriptions, please refer to the description of the embodiment shown in Figure 7, which will not be described in detail here.

[0202] Please refer to Figure 10, which is a schematic diagram of another control device provided in an embodiment of this application, namely control device 100. Optionally, the control device 100 can be an independent device, for example, the control device 100 can be the control circuit 201 shown in Figure 6, or the control device 100 can be the control unit 2011 in the control circuit 201 shown in Figure 6. Alternatively, the control device 100 can also be a component in an independent device (such as a node), such as a chip or integrated circuit. The control device 100 is used to implement the control method shown in Figure 8 above.

[0203] As shown in Figure 10, the control device 100 includes a transceiver module 1001. The transceiver module 1001 is used to perform one or more operations such as acquiring, receiving, listening, transmitting, and sending. For example, when the first battery and / or control circuit meets a first condition, it sends a fifth control signal, which controls the transmission of the shielded first signal. It further includes other operations for implementing the control method.

[0204] For related descriptions, please refer to the description of the embodiment shown in Figure 8, which will not be described in detail here.

[0205] Please refer to Figure 11, which is a schematic diagram of the structure of a computing device provided in an embodiment of this application. A computing device is a device with processing capabilities. The device here can be a physical device, such as a server (e.g., a rack server) or a host, or it can be a virtual device, such as a virtual machine or a container.

[0206] As shown in Figure 11, the computing device 110 includes a processor 1101, a memory 1102, and one or more programs, and may include a communication interface 1103. It should be understood that this application does not limit the number of processors and memories in the computing device 110.

[0207] Processor 1101 is a module for performing calculations and may include a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor (MP), a digital signal processor (DSP), a micro controller unit (MCU), or one or more integrated circuits for controlling the execution of programs in the above schemes.

[0208] Memory 1102 provides storage space, in which application data, user data, operating system, and computer programs can be optionally stored. Memory 1102 may include read-only memory (ROM) or other types of static storage devices capable of storing static information and instructions, random access memory (RAM) or other types of dynamic storage devices capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0209] The memory 1102 can exist independently and be connected to the processor 1101 via a bus. Alternatively, the memory 1102 can be integrated with the processor 1101.

[0210] The communication interface 1103 is used to provide information input or output to the at least one processor. And / or, the communication interface 1103 can be used to receive data transmitted externally and / or transmit data externally. The communication interface 1103 can be a wired link interface, such as an Ethernet cable, or a wireless link interface (Bluetooth, general wireless transmission, and other wireless communication technologies, etc.). Optionally, the communication interface 1103 may also include a transmitter (such as a radio frequency transmitter, antenna, etc.) or a receiver coupled to the interface.

[0211] In this embodiment, one or more programs are stored in the memory 1102 in the form of program code and configured to be executed by the processor 1101. The programs include instructions for implementing the steps in the control method shown in FIG. 7 or FIG. 8. That is, the memory 1102 stores executable instructions, and the processor 1101 executes the executable instructions to implement the steps in the control method shown in FIG. 7 or FIG. 8. In other words, the memory 1102 stores instructions for executing the control method shown in FIG. 7 or FIG. 8.

[0212] This application embodiment also provides a terminal, which includes the aforementioned control device 90, the aforementioned control device 100, or the computing device 110. The terminal is used to implement the aforementioned control method, such as the control method shown in FIG7 or FIG8.

[0213] Optionally, the terminal may further include a first battery and / or a first ECU, wherein the first battery is used to power the control circuit and the first ECU is used to wake up the control circuit.

[0214] Optionally, the terminal can be a means of transportation, such as a car, truck, aircraft, drone, slow transport vehicle, spacecraft, or ship, or any other possible means of transportation used in any scenario. This application does not limit this.

[0215] This application also provides a computer program product containing instructions. The computer program product may be a software or program product containing instructions, capable of running on a computing device or stored on any usable medium. The computer program instructions are used to implement the aforementioned control method, such as the control method shown in FIG7 or FIG8.

[0216] This application also provides a computer-readable storage medium. This computer-readable storage medium is used to store a computer program, the computer program including instructions for implementing the aforementioned control method, such as the control method shown in FIG7 or FIG8.

[0217] The computer-readable storage medium can be any available medium that can be stored by an information interaction device and / or computing device, or a data storage device such as a data center containing one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media, or semiconductor media (e.g., solid-state drives).

[0218] In this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0219] In this application, "at least one" in the embodiments refers to one or more items, and "more than one" refers to two or more items. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c, (a and b), (a and c), (b and c), or (a and b and c), where a, b, and c can be single or multiple. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0220] Furthermore, unless otherwise stated, the use of ordinal numbers such as "first" and "second" in the embodiments of this application is for distinguishing multiple objects, and is not for limiting the order, sequence, priority or importance of multiple objects.

[0221] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0222] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this application.

Claims

1. A control circuit, characterized in that, Applied to a first battery, the first battery being used to power the control circuit; the control circuit includes: Control unit, power management unit, transceiver unit, and switching unit; The control unit is connected to the power management unit; The transceiver unit is used to receive a first signal, which is used to wake up the control unit. The control unit is configured to send a control signal to the switching unit when the first battery and / or the control circuit meets a first condition. The control signal is used to control the switching unit to disconnect. The control unit is connected to the switching unit. The switching unit is used to control the power management unit to receive the first signal.

2. The control circuit according to claim 1, characterized in that, The first condition includes: the remaining charge of the first battery is lower than a first threshold, and / or, the control circuit is faulty.

3. The control circuit according to claim 1 or 2, characterized in that, The switching unit includes a first switching unit, which is connected to the power management unit and the first electronic control unit (ECU), and the control unit is connected to the first switching unit. There is no connection between the power management unit and the transceiver unit, or the transceiver unit does not support the transmission of the first signal.

4. The control circuit according to claim 3, characterized in that, The control signal includes a first control signal, which is used to control the first switching unit to disconnect. The first switching unit is used to control the power management unit to receive the first signal from the first ECU.

5. The control circuit according to claim 1 or 2, characterized in that, The switching unit includes a second switching unit, which is connected to the power management unit and the transceiver unit respectively, and the control unit is connected to the second switching unit.

6. The control circuit according to claim 5, characterized in that, The control signal includes a second control signal, which is used to control the second switching unit to disconnect. The second switching unit is used to control the power management unit to receive the first signal from the transceiver unit.

7. The control circuit according to claim 1 or 2, characterized in that, The switching unit includes a third switching unit, which is disposed between the input port and the output port of the transceiver unit; the power management unit is connected to the transceiver unit, and the control unit is connected to the third switching unit.

8. The control circuit according to claim 7, characterized in that, The control signal includes a third control signal, which is used to control the third switching unit to disconnect. The third switching unit is used to control the power management unit to receive the first signal from the transceiver unit.

9. The control circuit according to claim 1 or 2, characterized in that, The switching unit includes a fourth switching unit, which is connected to the power management unit and the transceiver unit respectively, and the control unit is connected to the fourth switching unit.

10. The control circuit according to claim 9, characterized in that, The control signal includes a fourth control signal, which is used to control the fourth switching unit to disconnect. The fourth switching unit is used to control the power management unit to supply power to the transceiver unit.

11. A control method, characterized in that, The control circuit described in any one of claims 1-10 includes a control unit, a power management unit, a transceiver unit, and a switching unit, wherein the control unit is connected to the power management unit and the control unit is connected to the switching unit; the control method includes: When the first battery and / or the control circuit meet the first condition, a control signal is sent to control the switching unit to open, and the first battery is used to power the control circuit. The transceiver unit is used to receive a first signal, which is used to wake up the control unit. The switching unit is used to control the power management unit to receive the first signal.

12. The method according to claim 11, characterized in that, The first condition includes: the remaining charge of the first battery is lower than a first threshold, and / or, the control circuit is faulty.

13. The method according to claim 11 or 12, characterized in that, The switching unit includes a first switching unit, which is connected to the power management unit and the first electronic control unit (ECU) respectively. The control unit is connected to the first switching unit. There is no connection between the power management unit and the transceiver unit, or the transceiver unit does not support the transmission of the first signal. The transmission control signal includes: Send a first control signal, which is used to control the first switching unit to disconnect; The first switching unit is used to control the power management unit to receive the first signal from the first ECU.

14. The method according to claim 11 or 12, characterized in that, The switching unit includes a second switching unit, which is connected to the power management unit and the transceiver unit respectively, and the control unit is connected to the second switching unit; The transmission control signal includes: Send a second control signal, which is used to control the second switching unit to open; The second switching unit is used to control the power management unit to receive the first signal from the transceiver unit.

15. The method according to claim 11 or 12, characterized in that, The switching unit includes a third switching unit, which is disposed between the input port and the output port in the transceiver unit; The power management unit is connected to the transceiver unit, and the control unit is connected to the third switching unit. The transmission control signal includes: Send a third control signal, which is used to control the third switching unit to open; The third switching unit is used to control the power management unit to receive the first signal from the transceiver unit.

16. The method according to claim 11 or 12, characterized in that, The switching unit includes a fourth switching unit, which is connected to the power management unit and the transceiver unit respectively, and the control unit is connected to the fourth switching unit; The transmission control signal includes: Send a fourth control signal, which is used to control the fourth switching unit to open; The fourth switching unit is used to control the power management unit to supply power to the transceiver unit.

17. A control method, characterized in that, The control circuit is applied to a control circuit, which includes a control unit, a power management unit, and a transceiver unit. The control unit is connected to the power management unit, and the power management unit is connected to the transceiver unit. The transceiver unit is used to receive a first signal, which is used to wake up the control unit. The control method includes: When the first battery and / or the control circuit meet the first condition, a fifth control signal is sent, the fifth control signal being used to control the shielding of the transmission of the first signal, and the first battery being used to power the control circuit.

18. The control method according to claim 17, characterized in that, The first condition includes: the remaining charge of the first battery is lower than a first threshold, and / or, the control circuit is faulty.

19. The control method according to claim 17 or 18, characterized in that, The transceiver unit includes a management unit for managing the signal transmission and reception of the transceiver unit; the transmission of the fifth control signal includes: The fifth control signal is sent to the management unit, and the fifth control signal is used to control the management unit to block the transmission of the first signal by the transceiver unit.

20. The control method according to claim 17 or 18, characterized in that, Sending the fifth control signal includes: The fifth control signal is sent to the transceiver unit and / or the power management unit, the fifth control signal being used to control the power supply. The transmission of the first signal is shielded between the management unit and the transceiver unit.

21. A control device, characterized in that, The control device includes: The transceiver module is used to send a control signal when the first battery and / or control circuit meets a first condition, the control signal being used to control the switching unit to open. The first battery is used to power the control circuit, which includes a control unit, a power management unit, a transceiver unit, and a switching unit. The control unit is connected to the power management unit and the switching unit. The transceiver unit is used to receive a first signal, which is used to wake up the control unit. The switching unit is used to control the power management unit to receive the first signal.

22. A control device, characterized in that, The control device includes: A transceiver module is configured to send a fifth control signal when the first battery and / or control circuit meets a first condition, the fifth control signal being used to control the transmission of the shielded first signal; The first battery is used to power the control circuit, which includes a control unit, a power management unit, and a transceiver unit. The control unit is connected to the power management unit, and the power management unit is connected to the transceiver unit. The transceiver unit is used to receive the first signal, which is used to wake up the control unit.

23. A computing device, characterized in that, The computing device includes a processor and a memory, the memory storing a program, the processor executing the program to cause the computing device to implement the method as claimed in any one of claims 11-16, or the processor executing the program to cause the computing device to implement the method as claimed in any one of claims 17-20.

24. A terminal, characterized in that, The terminal includes a control circuit as described in any one of claims 1-10, a control device as described in claim 21 or claim 22, or a computing device as described in claim 23.

25. The terminal according to claim 23, characterized in that, The terminal further includes a first battery and / or a first ECU; wherein the first battery is used to power the control circuit, and the first ECU is used to wake up the control circuit.

26. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program, the computer program including instructions for performing the method as described in any one of claims 11-16 or any one of claims 17-20.

27. A computer program product, characterized in that, The computer program product includes instructions that, when executed by a processor, cause the method as described in any one of claims 11-16 or any one of claims 17-20 to be implemented.

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