Control method and device and vehicle

Abstract

The invention provides a control method and device and a vehicle. The method can be applied to the field of intelligent vehicles. The method comprises the following steps: monitoring a collision signal from an air bag restraint system controller; and controlling the power supply state of the low-voltage storage battery to the door lock motor and / or the door handle motor according to the monitoring result of the collision signal. The method can be applied to the electric automobile, and it can be guaranteed that the automobile door can be rapidly unlocked and the door handle can be rapidly popped out when the automobile is collided.

Description

Technical Field

[0001] This application relates to the field of intelligent vehicles, and more particularly, to a control method, apparatus, and vehicle. Background Art

[0002] With the development and popularization of electric vehicles, intelligence has become an important label for automobiles. Among them, collision safety is also an important scoring criterion for electric vehicles. For example, when a vehicle collides, it can automatically unlock and pop out the door handle, which allows the users inside the vehicle to quickly evacuate to the outside of the vehicle. Or, it can also enable rescue personnel outside the vehicle to rescue the trapped people inside the vehicle in time.

[0003] Therefore, how to ensure that the vehicle can quickly unlock the door and pop out the door handle when a collision occurs has become an urgent problem to be solved. Summary of the Invention

[0004] This application provides a control method, apparatus, and vehicle, which helps to ensure that the vehicle can quickly unlock the door and pop out the door handle when a collision occurs.

[0005] In a first aspect, this application provides a control method, which includes: listening for a collision signal from an air bag module (ABM); and controlling the power supply state of a low-voltage battery to a door lock motor and / or a door handle motor according to the listening result of the collision signal.

[0006] Based on the above technical solution, controlling the power supply state of the low-voltage battery according to the listening result of the collision signal helps to improve the power supply resilience of the low-voltage battery to the door lock motor and / or the door handle motor. For example, when the collision signal is listened, the low-voltage battery can be controlled to supply power to the door lock motor and / or the door handle motor, which helps to ensure that the vehicle can quickly unlock the door and pop out the door handle when a collision occurs.

[0007] In some possible implementation manners, controlling the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor according to the listening result of the collision signal includes: when the collision signal sent by the ABM is listened, the low-voltage battery can be controlled to supply power to the door lock motor and / or the door handle motor.

[0008] In some possible implementation manners, controlling the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor according to the listening result of the collision signal includes: when the collision signal sent by the ABM is not listened and the low-voltage battery is in a non-thermal runaway state, the low-voltage battery can be controlled not to supply power to the door lock motor and / or the door handle motor.

[0009] Exemplarily, the low-voltage battery being in a non-thermal runaway state includes one or more of the remaining state of charge (SOC) of the low-voltage battery being less than or equal to a preset charge, the low-voltage battery being in an over-discharge or over-current state, and there being a balance problem between the battery cells in the low-voltage battery.

[0010] Based on the above technical solution, when no collision signal is monitored and the low-voltage battery is in a non-thermal runaway fault, the power supply of the low-voltage battery to the outside can be controlled. In this way, the power loss of the low-voltage battery can be avoided, which helps to extend the service life of the low-voltage battery.

[0011] In some possible implementation manners, the low-voltage battery may be a low-voltage lithium battery.

[0012] In some possible implementation manners, the monitoring of the collision signal from the airbag controller includes: the low-voltage battery management system (LBMS) monitors the collision signal from the airbag controller; and based on the monitoring result of the collision signal, controlling the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor includes: the LBMS controls the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor based on the monitoring result of the collision signal.

[0013] Based on the above technical solution, the signal transmission link from the airbag controller to the LBMS can be added. In this way, when a vehicle collision occurs, the ABM can send a collision signal to the LBMS, so that the LBMS can control the low-voltage battery to supply power to the door lock motor and / or the door handle motor.

[0014] In some possible implementation manners, the LBMS is located in the power supply system, and the power supply system may further include a low-voltage battery.

[0015] Combined with the first aspect, in certain implementation manners of the first aspect, based on the monitoring result of the collision signal, controlling the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor includes: when the collision signal is monitored and the low-voltage battery is in a non-thermal runaway state, controlling the low-voltage battery to supply power to the door lock motor and / or the door handle motor.

[0016] Based on the above technical solution, when the collision signal is monitored and the low-voltage battery is in a non-thermal runaway state, all non-critical faults of the low-voltage battery can be masked, and the low-voltage battery can be controlled to continuously supply power forcibly, which helps to ensure that the vehicle is unlocked and the door handle is ejected.

[0017] The fault states of the above low-voltage battery may include severe faults and non-severe faults. Among them, the severe fault may refer to the low-voltage battery being in a thermal runaway state, and the non-severe fault may be the above non-thermal runaway state.

[0018] Combined with the first aspect, in some implementation manners of the first aspect, when the collision signal is monitored and the low-voltage battery is in a non-thermal runaway state, controlling the low-voltage battery to supply power to the door lock motor and / or the door handle motor includes: when the collision signal is monitored and the state of charge (SOC) of the low-voltage battery is less than or equal to a preset power level, controlling the low-voltage battery to supply power to the door lock motor and / or the door handle motor; or, when the collision signal is monitored and the low-voltage battery is over-discharged, controlling the low-voltage battery to supply power to the door lock motor and / or the door handle motor; or, when the collision signal is monitored and there are balance problems among multiple battery cells in the low-voltage battery, controlling the low-voltage battery to supply power to the door lock motor and / or the door handle motor.

[0019] Based on the above technical solution, when the collision signal is monitored and the low-voltage battery is in a low power state, an over-discharged state, or there are balance problems with the battery cells, non-severe faults of these low-voltage batteries can be masked, and the low-voltage battery can be controlled to forcibly and continuously supply power to the door lock motor and / or the door handle motor, which helps to ensure that the vehicle is unlocked and the door handle is ejected.

[0020] Combined with the first aspect, in some implementation manners of the first aspect, the monitoring of the collision signal includes: receiving the collision signal sent by the ABM; or, receiving the collision signal sent by the body control module (BCM); or, receiving the collision signal sent by the vehicle integrated unit (VIU).

[0021] In some possible implementation manners, receiving the collision signal sent by the BCM (or, VIU) includes: receiving the collision signal sent by the ABM through the BCM (or, VIU).

[0022] In some possible implementation manners, receiving the collision signal sent by the ABM includes: the LBMS receives the collision signal sent by the ABM.

[0023] Based on the above technical solution, the signal flow transmission link between the ABM and the LBMS can be increased. In this way, when a vehicle collision accident occurs, the ABM can send the collision signal to the LBMS through this signal flow transmission link, so that the LBMS can control the low-voltage battery to forcibly and continuously supply power to the door lock motor and / or the door handle motor when it determines that the low-voltage battery is in a non-thermal runaway state, which helps to ensure that the vehicle is unlocked and the door handle is ejected.

[0024] In some possible implementations, receiving the collision signal sent by the BCM includes: the LBMS receives the collision signal sent by the BCM; receiving the collision signal sent by the VIU includes: the LBMS receives the collision signal sent by the VIU.

[0025] Based on the above technical solution, the signal flow transmission link between the BCM (or VIU) and the LBMS can be increased. In this way, when a vehicle collision accident occurs, the ABM can first send the collision signal to the BCM (or VIU). The BCM (or VIU) sends the collision signal to the LBMS through this signal flow transmission link, so that when the LBMS determines that the low-voltage battery is not in a thermal runaway state, it can control the low-voltage battery to forcibly and continuously supply power to the door lock motor and / or the door handle motor, which helps to ensure that the vehicle is unlocked and the door handle is ejected.

[0026] In some possible implementations, monitoring the collision signal includes: receiving a broadcast message sent by the ABM, and the broadcast message includes the collision signal.

[0027] In some possible implementations, the broadcast message can be a Bluetooth broadcast message.

[0028] Combined with the first aspect, in certain implementations of the first aspect, the collision signal includes one or more of a collision controller area network (CAN) signal, a collision local interconnect network (LIN) signal, or a collision hardwire signal.

[0029] In some possible implementations, controlling the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor according to the monitoring result of the collision signal includes: when the vehicle is in an unrested state, the collision signal is not monitored and the first instruction from the user is not received, controlling the low-voltage battery to stop supplying power to the door lock motor, and the first instruction is used to indicate unlocking the door; or, when the vehicle is in an unrested state, the collision signal is not monitored and the second instruction from the user is not received, controlling the low-voltage battery to stop supplying power to the door handle motor, and the second instruction is used to indicate ejecting the door handle.

[0030] In a second aspect, a control method is provided, and the method includes: acquiring data collected by a collision sensor; when it is determined to deploy an airbag according to the data, sending a collision signal to a control device, and the control device is used to control a low-voltage battery.

[0031] Based on the above technical solution, the signal flow transmission link between the ABM and the control device can be increased. In this way, when a vehicle collision accident occurs, the ABM can send a collision signal to the control device through this signal flow transmission link, so that the control device can control the low-voltage battery to supply power to the door lock motor and / or the door handle motor, which helps to ensure that the vehicle is unlocked and the door handle is ejected.

[0032] In some possible implementation manners, the control device may be located in the LBMS, or the control device may be the LBMS.

[0033] Combined with the second aspect, in certain implementation manners of the second aspect, sending the collision signal to the control device includes: sending the collision signal to the control device through the BCM; or sending the collision signal to the control device through the VIU.

[0034] Based on the above technical solution, the signal flow transmission link between the BCM (or VIU) and the control device can be increased. In this way, when a vehicle collision accident occurs, the ABM can send a collision signal to the control device through the BCM (or VIU), so that when the control device determines that the low-voltage battery is in a non-thermal runaway state, it can control the low-voltage battery to supply power to the door lock motor and / or the door handle motor, which helps to ensure that the vehicle is unlocked and the door handle is ejected.

[0035] Combined with the second aspect, in certain implementation manners of the second aspect, the collision signal includes one or more of a collision CAN signal, a collision LIN signal, or a collision hardwire signal.

[0036] In a third aspect, a control method is provided, and the method includes: receiving a collision signal sent by the ABM; sending the collision signal to a control device, where the control device is used to control the low-voltage battery.

[0037] Combined with the third aspect, in certain implementation manners of the third aspect, the collision signal includes one or more of a collision CAN signal, a collision LIN signal, or a collision hardwire signal.

[0038] In a fourth aspect, a control device is provided, and the device includes: a monitoring unit for monitoring a collision signal from an airbag controller; a control unit for controlling the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor according to the monitoring result of the collision signal.

[0039] Combined with the fourth aspect, in certain implementation manners of the fourth aspect, the control unit is specifically configured to: when the monitoring unit monitors the collision signal and the low-voltage battery is in a non-thermal runaway state, control the low-voltage battery to supply power to the door lock motor and / or the door handle motor.

[0040] In combination with the fourth aspect, in some implementation manners of the fourth aspect, the control unit is specifically configured to: when the monitoring unit monitors the collision signal and the remaining power SOC of the low-voltage battery is less than or equal to the preset power, control the low-voltage battery to supply power to the door lock motor and / or the door handle motor; or, when the monitoring unit monitors the collision signal and the low-voltage battery is over-discharged, control the low-voltage battery to supply power to the door lock motor and / or the door handle motor; or, when the monitoring unit monitors the collision signal and there are balance problems in multiple battery cells of the low-voltage battery, control the low-voltage battery to supply power to the door lock motor and / or the door handle motor.

[0041] In combination with the fourth aspect, in some implementation manners of the fourth aspect, the monitoring unit is specifically configured to: receive the collision signal sent by the airbag controller; or, receive the collision signal sent by the BCM; or, receive the collision signal sent by the VIU.

[0042] In combination with the fourth aspect, in some implementation manners of the fourth aspect, the collision signal includes one or more of a collision CAN signal, a collision LIN signal, or a collision hardwire signal.

[0043] In a fifth aspect, a signal processing device is provided. The device includes an acquisition unit, a determination unit, and a transmission unit. The acquisition unit is configured to acquire data collected by a collision sensor. The transmission unit is configured to send a collision signal to a control device when the determination unit determines that the airbag is to be deployed. The control device is configured to control a low-voltage battery.

[0044] In combination with the fifth aspect, in some implementation manners of the fifth aspect, the transmission unit is specifically configured to: send the collision signal to the control device through the BCM; or, send the collision signal to the control device through the VIU.

[0045] In combination with the fifth aspect, in some implementation manners of the fifth aspect, the collision signal includes one or more of a collision CAN signal, a collision LIN signal, or a collision hardwire signal.

[0046] In a sixth aspect, a signal processing device is provided. The device includes a receiving unit configured to receive a collision signal sent by an airbag controller, and a transmission unit configured to send the collision signal to a control device, where the control device is configured to control a low-voltage battery.

[0047] In combination with the sixth aspect, in some implementation manners of the sixth aspect, the collision signal includes one or more of a collision CAN signal, a collision LIN signal, or a collision hardwire signal.

[0048] In a seventh aspect, the present application provides a control device, which includes a processor and a memory. The memory is used to store instructions, and the processor executes the instructions stored in the memory so that the device executes any possible method in the first aspect.

[0049] In an eighth aspect, the present application provides a signal processing device, which includes a processor and a memory. The memory is used to store instructions, and the processor executes the instructions stored in the memory so that the device executes any possible method in the second aspect.

[0050] In a ninth aspect, the present application provides a signal processing device, which includes a processor and a memory. The memory is used to store instructions, and the processor executes the instructions stored in the memory so that the device executes any possible method in the third aspect.

[0051] In a tenth aspect, the present application provides a power supply system, which includes the control device described in the fourth aspect or the seventh aspect above, and a low-voltage battery.

[0052] In an eleventh aspect, the present application provides a vehicle, which includes any possible device in the fourth aspect to the ninth aspect, or includes the power supply system in the tenth aspect.

[0053] In a twelfth aspect, the present application provides a computer program product, which includes: computer program code. When the computer program code runs on a computer, it causes the computer to execute any possible method in the first aspect, the second aspect, or the third aspect above.

[0054] It should be noted that the above computer program code can be stored in whole or in part on a first storage medium. The first storage medium can be packaged together with the processor or packaged separately from the processor. The embodiments of the present application do not make specific limitations on this.

[0055] In a thirteenth aspect, the present application provides a computer-readable storage medium, which stores program code. When the computer program code runs on a computer, it causes the computer to execute any possible method in the first aspect, the second aspect, or the third aspect above.

[0056] In a fourteenth aspect, the present application provides a chip. The chip system includes a circuit, and the circuit is used to execute any possible method in the first aspect, the second aspect, or the third aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is a schematic diagram of the functional block diagram of the vehicle provided by the embodiment of the present application.

[0058] Figure 2 It is a schematic diagram of supplying power to the door lock motor and the door handle motor.

[0059] Figure 3 It is a schematic flowchart of the control method provided by the embodiment of the present application.

[0060] Figure 4 It is a schematic diagram of supplying power to the door lock motor and the door handle motor provided by the embodiment of the present application.

[0061] Figure 5 It is a schematic block diagram of the control device provided by the embodiment of the present application.

[0062] Figure 6 It is another schematic block diagram of the control device provided by the embodiment of the present application.

[0063] Figure 7 It is another schematic block diagram of the control device provided by the embodiment of the present application. Detailed implementation manners

[0064] Next, the technical solutions in the embodiments of the present application will be described in conjunction with the accompanying drawings in the embodiments of the present application. Among them, in the description of the embodiments of the present application, unless otherwise specified, " / " means "or". For example, A / B may represent A or B; herein, "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. "At least one item" means one or more than one item. For example, "at least one of A and B" is similar to "A and / or B", describing the association relationship of associated objects, indicating that there can be three relationships. For example, at least one of A and B may represent: A exists alone, A and B exist simultaneously, and B exists alone.

[0065] In the embodiments of the present application, prefix words such as "first" and "second" are only used to distinguish different described objects, and have no restrictive effect on the position, order, priority, quantity, content, etc. of the described objects. The use of ordinal numbers and other prefix words for distinguishing described objects in the embodiments of the present application does not constitute a limitation on the described objects. The statement of the described objects refers to the description in the context of the claims or embodiments, and should not constitute unnecessary limitations due to the use of such prefix words. In addition, in the description of this embodiment, unless otherwise specified, the meaning of "a plurality" is two or more than two.

[0066] Figure 1 It is a schematic functional block diagram of the vehicle 100 provided by the embodiment of the present application.

[0067] Such as Figure 1As shown, vehicle 100 may include a perception system 110 and a computing platform 120. Among them, the perception system 110 may include one or more sensors that sense information about the environment around vehicle 100. For example, the perception system 110 may include a positioning system, which may be a global positioning system (GPS), or a Beidou system or other positioning systems. For another example, the perception system 110 may include one or more of an inertial measurement unit (IMU), an acceleration sensor, a lidar, a millimeter wave radar, an ultrasonic radar, and a camera device. For another example, the perception system 110 may include one or more collision sensors.

[0068] Some or all of the functions of vehicle 100 may be controlled by computing platform 120. Computing platform 120 may include one or more processors, such as processors 121 to 12n (n is a positive integer). A processor is a circuit with signal processing capabilities. In one implementation, a processor may be a circuit with the ability to read and execute instructions, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a type of microprocessor), or a digital signal processor (DSP), etc.; in another implementation, a processor may achieve certain functions through the logical relationship of a hardware circuit, and the logical relationship of this hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as a field programmable gate array (FPGA). In a reconfigurable hardware circuit, the process of a processor loading a configuration document to implement the configuration of the hardware circuit can be understood as the process of a processor loading instructions to implement the functions of some or all of the above units. In addition, a processor may also be a hardware circuit designed for artificial intelligence, which can be understood as a type of ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc. In addition, computing platform 120 may also include a memory for storing instructions, and some or all of processors 121 to 12n may call the instructions in the memory to implement corresponding functions.

[0069] Optionally, the above structure of vehicle 100 is merely illustrative. In actual applications, each component in the above vehicle 100 may be added or deleted according to actual needs.

[0070] The vehicle 100 in the present application may include: road vehicles, water vehicles, air vehicles, industrial equipment, agricultural equipment, or entertainment equipment, etc. For example, the vehicle 100 may be a vehicle (such as a commercial vehicle, a passenger car, a motorcycle, a flying car, a train, etc.), an industrial vehicle (such as a forklift, a trailer, a tractor, etc.), an engineering vehicle (such as an excavator, a bulldozer, a crane, etc.), agricultural equipment (such as a lawn mower, a harvester, etc.), amusement equipment, a toy vehicle, etc. The embodiment of the present application does not specifically limit the type of vehicle.

[0071] Figure 2 A schematic diagram showing power supply to the door lock motor and door handle motor is shown.

[0072] In order to ensure that the vehicle can automatically unlock when it collides, in the current general electrical architecture solution, the ABM is connected to the BCM, and the low-voltage battery and the direct current converter (DCDC) are connected to the ABM, BCM, door lock motor and door handle motor, etc. When the vehicle collides, the ABM can receive the data collected by the collision sensor. When the ABM determines to control the airbag to pop out according to the data collected by the collision sensor, the ABM can send a collision signal to the BCM. The BCM can control the DCDC to disconnect the output according to the collision signal. With the help of the power provided by the low-voltage battery, the door lock motor of the vehicle is driven to unlock, and the door handle of the vehicle is popped out (for example, a hidden door handle), which is convenient for people outside the vehicle to rescue. In this electrical architecture solution, the DCDC will immediately disconnect the output when the vehicle collides, and the vehicle can be unlocked completely relying on the low-voltage battery for power supply. If some faults occur in the low-voltage battery when the vehicle collides, it will cause the low-voltage battery to disconnect the output, resulting in the vehicle being unable to unlock and the door handle being unable to pop out.

[0073] For example, when one or more of the following faults occur in the low-voltage battery, the low-voltage battery may be disconnected from output:

[0074] (1) The SOC of the low-voltage battery is less than or equal to the preset power;

[0075] (2) The state of health (SOH) of the low-voltage battery is less than or equal to the preset health state;

[0076] (3) The voltage difference between multiple cells in the low-voltage battery when fully charged is greater than or equal to a preset difference;

[0077] (4) The low-voltage battery is in an over-discharge or over-current state.

[0078] (5) The driver in the low-voltage battery fails.

[0079] (6) A sensor in the low-voltage battery fails.

[0080] If one or more of the above-mentioned faults occur in the low-voltage battery when the vehicle collides, it will also cause the low-voltage battery to stop supplying power to the door lock motor and the door handle motor, resulting in the vehicle being unable to unlock and the door handle being unable to pop out.

[0081] The above faults (1)-(6) can also be referred to as the low-voltage battery being in a non-thermal runaway state, or the low-voltage battery being in a non-serious fault state.

[0082] The above faults (1)-(6) are only illustrative, and the low-voltage battery can also be in other types of non-thermal runaway states.

[0083] Figure 3 The schematic flowchart of the control method 300 provided by the embodiment of the present application is shown. This method 300 can be executed by the power supply system (for example, the power supply system can include a control device and a low-voltage battery); alternatively, this method 300 can be executed by the control device in the power supply system. In the following embodiments, the execution by the control device is taken as an example for illustration. This method 300 includes:

[0084] S310, monitor the collision signal from the ABM.

[0085] Optionally, the monitoring of the collision signal includes: receiving the collision signal sent by the ABM; or, receiving the collision signal sent by the BCM; or, receiving the collision signal sent by the VIU.

[0086] Exemplarily, as a regional communication unit, the VIU can be deployed at a location where vehicle sensors and actuators are dense, so that the vehicle's sensors and actuators can be accessed nearby; at the same time, the VIU can have certain computing and driving capabilities (for example, the VIU can absorb the driving computing functions of some actuators).

[0087] Figure 4 The schematic diagram of supplying power to the door lock motor and the door handle motor provided by the embodiment of the present application is shown.

[0088] As Figure 4 shown in (a) of, a signal link from the ABM to the power supply system is newly added in the electrical architecture. The power supply system includes a control device and a low-voltage battery.

[0089] Exemplarily, the control device is located in the LBMS, or the control device can be the LBMS.

[0090] When the vehicle collides, the ABM can receive the data collected by the collision sensor. When determining to control the airbag to pop out according to the data collected by the collision sensor, the ABM can send the collision signal to the control device.

[0091] As Figure 4 shown in (b) of Figure 4 , a signal link from the BCM (or VIU) to the low-voltage power supply device is newly added in the electrical architecture. When a vehicle collision occurs, the ABM can receive the data collected by the collision sensor. When determining to control the airbag to pop up based on the data collected by the collision sensor, the ABM can send a collision signal to the BCM (or VIU). The BCM (or VIU) can send the collision signal to the control device.

[0092] Exemplarily, the collision signal can be one or more of a collision CAN signal, a collision LIN signal, or a collision hardwire signal sent by the ABM.

[0093] Above Figure 4 The collision signal transmission method shown in (a) and (b) above can be point-to-point transmission. Taking the collision signal being a CAN signal as an example, after generating the collision CAN signal, the ABM can send the collision CAN signal to the control device through software routing.

[0094] The above is described by taking the control device being integrated in the power supply system as an example. The embodiments of the present application are not limited thereto. For example, the control device can also be a control device independent of the power supply system, or the functions implemented by the control device can also be integrated into the above BCM or VIU.

[0095] Optionally, the monitoring of the collision signal includes: receiving a broadcast message sent by the ABM, and the broadcast message includes the collision signal.

[0096] In some possible implementation manners, the broadcast message can be a Bluetooth broadcast message.

[0097] S320, according to the monitoring result of the collision signal, control the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor.

[0098] Optionally, according to the monitoring result of the collision signal, controlling the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor includes: when the collision signal sent by the ABM is monitored, controlling the low-voltage battery to supply power to the door lock motor and / or the door handle motor.

[0099] Optionally, according to the monitoring result of the collision signal, controlling the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor includes: when the collision signal sent by the ABM is not monitored and the low-voltage battery is in a non-thermal runaway state, controlling the low-voltage battery not to supply power to the door lock motor and / or the door handle motor.

[0100] Based on the above technical solution, when no collision signal is monitored and the low-voltage battery is in a non-thermal runaway fault, the power supply of the low-voltage battery to the outside can be controlled. In this way, the power consumption of the low-voltage battery can be avoided, which helps to extend the service life of the low-voltage battery.

[0101] Optionally, according to the monitoring result of the collision signal, the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor is controlled, including: when the collision signal is monitored and the low-voltage battery is in a non-thermal runaway state, controlling the low-voltage battery to supply power to the door lock motor and / or the door handle motor.

[0102] Exemplarily, as Figure 4 shown in (a) of, when the collision signal sent by the ABM is received and the low-voltage battery is in a non-thermal runaway state, the control device can forcibly control the low-voltage battery to supply power to the door lock motor and the door handle motor, so as to ensure that the door is unlocked and the door handle pops out when the vehicle collides. In this way, by adding a signal flow transmission link between the ABM and the control device, when a vehicle collision accident occurs, the ABM can send the collision signal to the control device through this signal flow transmission link, so that the control device can control the low-voltage battery to supply power to the door lock motor and / or the door handle motor when it is determined that the low-voltage battery is in a non-thermal runaway state, which helps to ensure that the vehicle is unlocked and the door handle pops out.

[0103] Exemplarily, as Figure 4 shown in (b) of, when the collision signal sent by the BCM (or VIU) is received and the low-voltage battery is in a non-thermal runaway state, the control device can forcibly control the low-voltage battery to supply power to the door lock motor and the door handle motor, so as to ensure that the door is unlocked and the door handle pops out when the vehicle collides. In this way, by adding a signal flow transmission link between the BCM (or VIU) and the control device, when a vehicle collision accident occurs, the ABM can first send the collision signal to the BCM (or VIU). The BCM (or VIU) sends the collision signal to the control device through this signal flow transmission link, so that the control device can control the low-voltage battery to supply power to the door lock motor and / or the door handle motor when it is determined that the low-voltage battery is in a non-thermal runaway state, which helps to ensure that the vehicle is unlocked and the door handle pops out.

[0104] Optionally, when the collision signal is detected and the low-voltage battery is in a non-thermal runaway state, controlling the low-voltage battery to supply power to the door lock motor and / or the door handle motor includes: when the collision signal is detected and the state of charge (SOC) of the low-voltage battery is less than or equal to a preset power level, controlling the low-voltage battery to supply power to the door lock motor and / or the door handle motor; or, when the collision signal is detected and the low-voltage battery is over-discharged, controlling the low-voltage battery to supply power to the door lock motor and / or the door handle motor; or, when the collision signal is detected and there are balance problems among multiple battery cells in the low-voltage battery, controlling the low-voltage battery to supply power to the door lock motor and / or the door handle motor; or, when the collision signal is detected and the driver in the low-voltage battery fails, controlling the low-voltage battery to supply power to the door lock motor and / or the door handle motor; or, when the collision signal is detected and the sensor in the low-voltage battery fails, controlling the low-voltage battery to supply power to the door lock motor and / or the door handle motor.

[0105] In this way, when the collision signal is detected and the low-voltage battery is in a low power state, over-discharged state, there are balance problems among battery cells, the driver fails, or the sensor fails, these non-critical faults of the low-voltage battery can be masked, and the low-voltage battery can be controlled to supply power externally forcibly and continuously, which helps to ensure that the vehicle is unlocked and the door handle is ejected.

[0106] In the embodiment of the present application, by analyzing the power supply link when the vehicle collides, a signal link from the ABM (or, BCM, VIU) to the power supply system is added. By distinguishing the usage scenarios of the vehicle for the power supply system of the vehicle, the power supply resilience of the low-voltage battery when the vehicle collides can be improved, and the vehicle can be stably unlocked after a collision, reducing the rescue difficulty of trapped persons.

[0107] Optionally, according to the monitoring result of the collision signal, controlling the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor includes: when the vehicle is in an undormant state, the collision signal is not detected and the first instruction from the user is not received, controlling the low-voltage battery to stop supplying power to the door lock motor, and the first instruction is used to indicate unlocking the door; or, when the vehicle is in an undormant state, the collision signal is not detected and the second instruction from the user is not received, controlling the low-voltage battery to stop supplying power to the door handle motor, and the second instruction is used to indicate ejecting the door handle.

[0108] During the normal driving of the vehicle, the DCDC and the low-voltage battery can supply power to the low-voltage load. Exemplarily, the power supply of the DCDC is the main and the power supply of the low-voltage battery is the supplement. For example, when the power supply voltage of the DCDC is insufficient, the low-voltage battery can be used for supplementation.

[0109] When the vehicle is in an unrested state (or, wake-up state), the DCDC has not yet started working. At this time, when the control device does not detect a collision signal and does not receive an instruction from the user to indicate unlocking or to pop out the door handle, it can control the low-voltage battery not to supply power to the door lock motor and the door handle motor. In this way, since the low-voltage battery does not supply power to these low-voltage loads (for example, the low-voltage loads include the door lock motor and / or the door handle motor), there will be no discharge current in the low-voltage battery, which can avoid the power feeding of the low-voltage battery and help improve the service life of the low-voltage battery.

[0110] Figure 5 Fig. 4 shows a schematic block diagram of a control device 500 provided by an embodiment of the present application. The device 500 includes: a monitoring unit 510 for monitoring a collision signal from an airbag controller; and a control unit 520 for controlling the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor according to the monitoring result of the collision signal.

[0111] Optionally, the control unit 520 is specifically configured to: when the monitoring unit 510 monitors the collision signal and the low-voltage battery is in a non-thermal runaway state, control the low-voltage battery to supply power to the door lock motor and / or the door handle motor.

[0112] Optionally, the control unit 520 is specifically configured to: when the monitoring unit 510 monitors the collision signal and the remaining state of charge (SOC) of the low-voltage battery is less than or equal to a preset power level, control the low-voltage battery to supply power to the door lock motor and / or the door handle motor; or when the monitoring unit 510 monitors the collision signal and the low-voltage battery is over-discharged, control the low-voltage battery to supply power to the door lock motor and / or the door handle motor; or when the monitoring unit 510 monitors the collision signal and there are balance problems in multiple battery cells of the low-voltage battery, control the low-voltage battery to supply power to the door lock motor and / or the door handle motor.

[0113] Optionally, the monitoring unit 510 is specifically configured to: receive the collision signal sent by the airbag controller; or receive the collision signal sent by the body control module (BCM); or receive the collision signal sent by the vehicle interface unit (VIU).

[0114] Optionally, the collision signal includes one or more of a collision controller area network (CAN) signal, a collision local interconnect network (LIN) signal, or a collision hardwire signal.

[0115] Exemplarily, the above control device 500 can be the control device in the power supply system shown above Figure 4 The control device 500 can be integrated into the power supply system, or can also be independent of the power supply system.

[0116] Exemplarily, the above control device 500 may also be located in the above BCM or VIU.

[0117] Figure 6 FIG. shows a schematic block diagram of a signal processing device 600 provided in an embodiment of the present application. The device 600 includes an acquisition unit 610, a determination unit 620, and a transmission unit 630. Among them, the acquisition unit 610 is configured to acquire data collected by a collision sensor; the transmission unit 630 is configured to send a collision signal to a control device when the determination unit 620 determines that an airbag needs to be deployed, and the control device is used to control a low-voltage battery.

[0118] Optionally, the transmission unit 630 is specifically configured to: send the collision signal to the control device through the BCM; or send the collision signal to the control device through the VIU.

[0119] Optionally, the collision signal includes one or more of a collision CAN signal, a collision LIN signal, or a collision hardwire signal.

[0120] Exemplarily, the above signal processing device 600 may be located in the above ABM.

[0121] Figure 7 FIG. shows a schematic block diagram of a signal processing device 700 provided in an embodiment of the present application. The device 700 includes: a receiving unit 710, configured to receive a collision signal sent by an airbag controller; a transmission unit 720, configured to send the collision signal to a control device, and the control device is used to control a low-voltage battery.

[0122] Optionally, the collision signal includes one or more of a collision CAN signal, a collision LIN signal, or a collision hardwire signal.

[0123] Exemplarily, the above signal processing device 700 may be located in the above BCM or VIU.

[0124] It should be understood that the division of each unit in the above device is only a division of logical functions. In actual implementation, it can be fully or partially integrated into a physical entity, or physically separated. In addition, the units in the device can be implemented in the form of a processor invoking software. For example, the device includes a processor, the processor is connected to a memory, and instructions are stored in the memory. The processor invokes the instructions stored in the memory to implement any of the above methods or the functions of each unit of the device. The processor is, for example, a general-purpose processor, such as a CPU or a microprocessor, and the memory is a memory inside or outside the device. Alternatively, the units in the device can be implemented in the form of a hardware circuit, and the functions of some or all of the units can be implemented by designing the hardware circuit. The hardware circuit can be understood as one or more processors. For example, in one implementation, the hardware circuit is an ASIC, and the functions of some or all of the above units are implemented by designing the logical relationship of the components in the circuit. Again, for example, in another implementation, the hardware circuit can be implemented by a PLD. Taking an FPGA as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured through a configuration file to implement the functions of some or all of the above units. All units of the above device can be fully implemented in the form of a processor invoking software, or fully implemented in the form of a hardware circuit, or partially implemented in the form of a processor invoking software, and the remaining part is implemented in the form of a hardware circuit.

[0125] In the embodiments of the present application, the processor is a circuit with the ability to process signals. In one implementation, the processor can be a circuit with the ability to read and execute instructions, such as a CPU, a microprocessor, a GPU, or a DSP, etc. In another implementation, the processor can implement certain functions through the logical relationship of a hardware circuit, and the logical relationship of the hardware circuit is fixed or can be reconfigured. For example, the processor is a hardware circuit implemented by an ASIC or a PLD, such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the configuration of 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. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as a type of ASIC, such as an NPU, a TPU, a DPU, etc.

[0126] It can be seen that each unit in the above device can be one or more processors (or processing circuits) configured to implement the above method, such as: a CPU, a GPU, an NPU, a TPU, a DPU, a microprocessor, a DSP, an ASIC, an FPGA, or a combination of at least two of these processor forms.

[0127] In addition, all or part of the units in the above device can be integrated together or can be implemented independently. In one implementation, these units are integrated together and implemented in the form of a SoC. The SoC may include at least one processor for implementing any of the above methods or implementing the functions of the units of the device. The types of the at least one processor may be different, such as including a CPU and an FPGA, a CPU and an artificial intelligence processor, a CPU and a GPU, etc.

[0128] An embodiment of the present application also provides a control device, which includes a processing unit and a storage unit, where the storage unit is used to store instructions, and the processing unit executes the instructions stored in the storage unit so that the device executes the method or steps executed in the above embodiment.

[0129] Optionally, if the control device is located in a vehicle, the above processing unit may be Figure 1 the processors 121-12n shown.

[0130] An embodiment of the present application also provides a power supply system, which may include a control device 500 and a low-voltage battery.

[0131] An embodiment of the present application also provides a vehicle, which may include the above control device 500, control device 600, control device 700 or the above power supply system.

[0132] An embodiment of the present application also provides a computer program product, which includes: computer program code, when the computer program code runs on a computer, it causes the computer to execute the method in the above embodiment.

[0133] An embodiment of the present application also provides a computer-readable medium, which stores program code, and when the computer program code runs on a computer, it causes the computer to execute the method in the above embodiment.

[0134] An embodiment of the present application also provides a chip, which includes a circuit for executing the method in the above embodiment.

[0135] In the implementation process, each step of the above method can be completed by the integrated logic circuit in the hardware of the processor or the instructions in the form of software. The method disclosed in combination with the embodiments of the present application can be directly embodied as being executed and completed by the hardware processor, or executed and completed by the combination of the hardware and software modules in the processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory, and the processor reads the information in the memory and combines its hardware to complete the steps of the above method. To avoid repetition, it will not be described in detail here.

[0136] It should be understood that in the embodiments of the present application, the memory may include a read-only memory and a random access memory, and provide instructions and data to the processor.

[0137] It should also be understood that in various embodiments of the present application, the magnitudes of the sequence numbers of the above processes do not imply the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0138] Those of ordinary skill in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professionals can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0139] Those skilled in the art can clearly understand that for the convenience and conciseness of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments, and will not be described herein again.

[0140] In several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces. The indirect coupling or communication connection of the devices or units may be in an electrical, mechanical, or other form.

[0141] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0142] In addition, in each embodiment of the present application, the functional units can be integrated into one processing unit, or each unit can exist physically alone, or two or more units can be integrated into one unit.

[0143] When the above-mentioned functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of this application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0144] As described above, the above are only specific implementation manners of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A control method, characterized in that: include: Monitor the collision signal from the airbag controller; According to the monitoring result of the collision signal, the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor is controlled.

2. The method according to claim 1, characterized in that According to the monitoring result of the collision signal, controlling the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor includes: When the collision signal is monitored and the low-voltage battery is in a non-thermal runaway state, the low-voltage battery is controlled to supply power to the door lock motor and / or the door handle motor.

3. The method according to claim 2, characterized in that When the collision signal is monitored and the low-voltage battery is in a non-thermal runaway state, controlling the low-voltage battery to supply power to the door lock motor and / or the door handle motor includes: When the collision signal is monitored and the remaining power SOC of the low-voltage battery is less than or equal to the preset power, the low-voltage battery is controlled to supply power to the door lock motor and / or the door handle motor; or, When the collision signal is monitored and the low-voltage battery is over-discharged, the low-voltage battery is controlled to supply power to the door lock motor and / or the door handle motor; or, When the collision signal is monitored and a balance problem exists in a plurality of cells in the low-voltage battery, the low-voltage battery is controlled to supply power to the door lock motor and / or the door handle motor.

4. The method according to claim 2 or 3, characterized in that: The monitoring of the collision signal comprises: receiving the collision signal sent by the airbag controller; or, Receiving the collision signal sent by the body controller BCM; or, The collision signal sent by the vehicle integrated unit VIU is received.

5. The method according to any one of claims 1 to 4, characterized in that The collision signal includes one or more of a collision controller area network (CAN) signal, a collision local interconnect network (LIN) signal or a collision hard-line signal.

6. A control method, characterized in that: include: Get the data collected by the collision sensor; When it is determined based on the data that the airbag is deployed, a collision signal is sent to a control device, which is used to control the low-voltage battery.

7. The method according to claim 6, characterized in that The sending of the collision signal to the control device comprises: Sending the collision signal to the control device via the BCM; or, The collision signal is sent to the control device via the VIU.

8. The method according to claim 6 or 7, characterized in that: The collision signal includes one or more of a collision CAN signal, a collision LIN signal or a collision hard-line signal.

9. A control method, characterized in that: include: Receive a collision signal sent by an airbag controller; The collision signal is sent to a control device, which is used to control a low-voltage battery.

10. The method according to claim 9, characterized in that The collision signal includes one or more of a collision CAN signal, a collision LIN signal or a collision hard-line signal.

11. A control device, characterized in that: include: A monitoring unit, used for monitoring a collision signal from an airbag controller; The control unit is used to control the power supply state of the low-voltage battery to the door lock motor and / or the door handle motor according to the monitoring result of the collision signal.

12. The device according to claim 11, characterized in that The control unit is specifically used for: When the monitoring unit monitors the collision signal and the low-voltage battery is in a non-thermal runaway state, the low-voltage battery is controlled to supply power to the door lock motor and / or the door handle motor.

13. The device according to claim 12, characterized in that The control unit is specifically used for: When the monitoring unit monitors the collision signal and the remaining power SOC of the low-voltage battery is less than or equal to the preset power, the low-voltage battery is controlled to supply power to the door lock motor and / or the door handle motor; or, When the monitoring unit monitors the collision signal and the low-voltage battery is over-discharged, the low-voltage battery is controlled to supply power to the door lock motor and / or the door handle motor; or, When the monitoring unit monitors the collision signal and a balance problem exists in a plurality of cells in the low-voltage battery, the low-voltage battery is controlled to supply power to the door lock motor and / or the door handle motor.

14. The device according to claim 12 or 13, characterized in that The monitoring unit is specifically used for: receiving the collision signal sent by the airbag controller; or, receiving the collision signal sent by the BCM; or, The collision signal sent by the VIU is received.

15. The device according to any one of claims 11 to 14, characterized in that The collision signal includes one or more of a collision CAN signal, a collision LIN signal or a collision hard-line signal.

16. A signal processing device, characterized in that: It includes an acquisition unit, a determination unit and a sending unit, wherein: The acquisition unit is used to acquire data collected by the collision sensor; The sending unit is used to send a collision signal to the control device when the determining unit determines that the airbag is deployed, and the control device is used to control the low-voltage battery.

17. The device according to claim 16, characterized in that The sending unit is specifically used for: Sending the collision signal to the control device via the BCM; or, The collision signal is sent to the control device via the VIU.

18. The device according to claim 16 or 17, characterized in that The collision signal includes one or more of a collision CAN signal, a collision LIN signal or a collision hard-line signal.

19. A signal processing device, characterized in that: include: A receiving unit, used for receiving a collision signal sent by an airbag controller; The sending unit is used to send the collision signal to a control device, and the control device is used to control the low-voltage battery.

20. The device according to claim 19, characterized in that The collision signal includes one or more of a collision CAN signal, a collision LIN signal or a collision hard-line signal.

21. A power supply system, characterized in that: The power supply system comprises a control device as claimed in any one of claims 11 to 15, and a low-voltage battery.

22. A vehicle, characterized in that: The method comprises the device as claimed in any one of claims 11 to 20, or comprises the power supply system as claimed in claim 21.

23. A computer-readable storage medium, characterized in that: Instructions are stored thereon, and when the instructions are executed by a processor, the processor implements the method according to any one of claims 1 to 10.

24. A computer program product, characterized in that The computer program product comprises a computer program code, which, when executed on a computer, causes the computer to implement the method according to any one of claims 1 to 10 .

25. A chip, characterized in that: The chip comprises a circuit for executing the method according to any one of claims 1 to 10.

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