Vehicle escape passage starting method and device and storage medium

Abstract

The application discloses a vehicle escape passage starting method and device and a storage medium. The vehicle comprises a power battery, a storage battery and N low-voltage circuits, each of which is composed of part of the power battery cells. The method comprises the following steps: if it is detected that the vehicle is in an abnormal state of damaged power battery, the power battery of the vehicle is controlled to be powered off under high voltage, and it is determined whether to open the escape passage of the vehicle; if it is determined to open the escape passage of the vehicle, the power supply state of the storage battery is detected, and when the power supply state of the storage battery is an abnormal power supply state, a target low-voltage circuit with a normal state is selected from the N low-voltage circuits; the current vehicle data of the vehicle is determined, and the target priority order of the multiple escape passages corresponding to the vehicle is determined based on the current vehicle data; the target low-voltage circuit is controlled to be closed, so that the target low-voltage circuit supplies power externally and starts the escape passage according to the target priority order. The scheme can ensure the smooth opening of the escape passage.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to a method, device, and storage medium for activating a vehicle escape route. Background Technology

[0002] In recent years, with the continuous increase in the number of new energy electric vehicles, their safety issues have become increasingly prominent. New energy electric vehicles generally use lithium-ion batteries as their power source. In the event of an emergency that damages the battery, the damaged cells are very likely to go out of control, instantly igniting surrounding cells and causing thermal runaway of the entire battery pack, resulting in a tragic accident. Therefore, in such a situation, the most effective measure is to get away from the vehicle as quickly as possible. However, in an emergency involving the battery pack, the battery pack needs to cut off the high voltage and rely on the battery to supply power. If the battery is dead or damaged by an impact, it is very likely that the battery will not be able to supply power to the doors and windows normally, making it impossible to open the doors and windows smoothly. Passengers will not be able to escape from the out-of-control vehicle in time, leading to a tragedy. Summary of the Invention

[0003] This invention provides a method, device, and storage medium for activating a vehicle escape passage, so as to ensure the smooth opening of the escape passage when the battery cannot supply power.

[0004] In a first aspect, embodiments of the present invention provide a method for activating a vehicle escape route. The vehicle includes a power battery, a storage battery, and N low-voltage circuits, wherein each low-voltage circuit is composed of a portion of the battery cells in the power battery, and N is a positive integer. The method includes: If the vehicle is detected to be in an abnormal state where the power battery is damaged, the power battery of the vehicle is controlled to be powered down at high voltage, and the power supply status of the battery is determined. If the power supply status of the battery is abnormal, select a target low-voltage circuit with a normal circuit status from the N low-voltage circuits; Determine the current vehicle data of the vehicle, and determine the target priority order of multiple escape routes corresponding to the vehicle based on the current vehicle data; Control the closure of the target low-voltage circuit so that the target low-voltage circuit supplies power to the outside and activates the escape passage according to the target priority sequence.

[0005] In some embodiments, if the power supply status of the battery is abnormal, selecting a target low-voltage circuit with a normal circuit status from the N low-voltage circuits includes: The N low-voltage circuits are traversed. If it is detected that the voltage of each cell in the currently traversed low-voltage circuit meets the preset voltage range, the currently traversed low-voltage circuit is taken as the target low-voltage circuit.

[0006] In some implementations, determining the current vehicle data of the vehicle and determining the target priority order of multiple escape routes corresponding to the vehicle based on the current vehicle data includes: Determine the environmental perception data and / or vehicle body status data of the vehicle; Based on the environmental perception data and / or the vehicle body status data, determine the current dangerous situation of the vehicle and the availability status of multiple escape routes; Based on the preset mapping relationship between the emergency scenario and the priority order of multiple escape routes, the initial priority order corresponding to the current emergency scenario is determined; Based on the initial priority order and the availability status of the multiple escape routes, the target priority order of the multiple escape routes is determined.

[0007] In some implementations, the environmental perception data includes ambient temperature and smoke concentration, and determining the current danger scenario of the vehicle based on the environmental perception data and / or the vehicle body status data includes: If the ambient temperature is greater than a preset temperature threshold and the smoke concentration is greater than a preset smoke concentration, the current emergency scenario is determined to be a fire scenario. Based on the preset mapping relationship between the emergency scenario and the priority order of multiple escape routes, the first priority order corresponding to the fire scenario is determined as the initial priority order.

[0008] In some implementations, the vehicle status data includes vehicle speed change, vehicle collision data, and vehicle pressure. Determining the current emergency scenario of the vehicle based on the environmental perception data and / or the vehicle status data includes: If the vehicle collision data indicates that the vehicle has been impacted, the change in vehicle speed is greater than a preset change, and the vehicle body pressure is greater than a preset pressure, then the current dangerous situation is determined to be a collision scenario. Based on the preset mapping relationship between the emergency scenario and the priority order of multiple escape routes, the second priority order corresponding to the collision scenario is determined as the initial priority order.

[0009] In some implementations, the environmental state data includes environmental image data, and the vehicle body state data includes vehicle attitude change and wheel adhesion. Determining the current danger scenario of the vehicle based on the environmental perception data and / or the vehicle body state data includes: If the environmental image data indicates that the vehicle is in a water environment, the vehicle's attitude change is greater than a preset attitude change, and the wheel adhesion is less than a preset adhesion, then the current dangerous situation is determined to be a water fall scenario. Based on the preset mapping relationship between the danger scenario and the priority order of multiple escape routes, the third priority order corresponding to the drowning scenario is determined as the initial priority order.

[0010] In some implementations, controlling the closing of the target low-voltage circuit to supply power to the outside and activate the escape routes according to the target priority sequence includes: Based on the target priority order, the highest priority escape route is selected as the target escape route and is controlled to open. If the target escape route fails to open, the next priority escape route is selected as the target escape route and is controlled to open again, until an escape route is opened.

[0011] Secondly, embodiments of the present invention provide a vehicle escape route activation device. The vehicle includes a power battery, a storage battery, and N low-voltage circuits, wherein each low-voltage circuit is composed of a portion of the battery cells in the power battery, and N is a positive integer. The device includes: The processing module is used to control the vehicle's power battery to shut down at high voltage when the vehicle is detected to be in an abnormal state where the power battery is damaged, and to determine the power supply status of the battery. The low-voltage circuit determination module is used to select a target low-voltage circuit with a normal circuit status from the N low-voltage circuits when the power supply status of the battery is in an abnormal power supply state. The escape route priority determination module is used to determine the current vehicle data of the vehicle and determine the target priority order of multiple escape routes corresponding to the vehicle based on the current vehicle data. The control module is used to control the closure of the target low-voltage circuit, so that the target low-voltage circuit supplies power to the outside and activates the escape passage according to the target priority sequence.

[0012] Thirdly, embodiments of the present invention provide a vehicle escape passage activation device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements the steps in the above-described vehicle escape passage activation method.

[0013] Fourthly, embodiments of the present invention provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps in the above-described vehicle escape passage activation method.

[0014] The above-described one or more technical solutions in the embodiments of this application have at least the following technical effects: The vehicle escape passage activation method provided in this specification includes a power battery, a storage battery, and N low-voltage circuits. Each low-voltage circuit is composed of a portion of the battery cells from the power battery, where N is a positive integer. If an abnormal state of power battery damage is detected, the power battery is controlled to be powered down at high voltage, and it is determined whether to open the vehicle's escape passage. If it is determined to open the escape passage, the power supply status of the storage battery is detected. If the power supply status of the storage battery is abnormal, a target low-voltage circuit with a normal circuit status is selected from the N low-voltage circuits. Based on the current vehicle data, the target priority order of multiple escape passages corresponding to the vehicle is determined. The target low-voltage circuit is controlled to close, so that the target low-voltage circuit supplies power to the outside and activates the escape passage according to the target priority order. This solution, by drawing a low-voltage circuit from the power battery and closing the low-voltage circuit to supply power to the doors, windows, or sunroof in case of an emergency where the storage battery cannot be used normally, ensures the smooth opening of the escape passage and the safety of the occupants. In addition, the low-voltage circuit is built on the existing power battery, without the need for additional power sources, effectively controlling vehicle costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a low-voltage circuit wiring method provided in an embodiment of this specification; Figure 2 This is a flowchart illustrating a method for activating a vehicle escape route, as provided in an embodiment of this specification. Figure 3 A schematic diagram of a vehicle power supply circuit provided for an embodiment of this specification; Figure 4 This is a schematic diagram of the functional modules of a vehicle escape route activation device provided in an embodiment of this specification; Figure 5 This is a schematic diagram of a vehicle escape passage activation device provided in an embodiment of this specification. Detailed Implementation

[0016] The overall technical solution of this specification embodiment is as follows: The vehicle includes a power battery, a storage battery, and N low-voltage circuits, wherein each low-voltage circuit is composed of a portion of the cells in the power battery, and N is a positive integer. If the vehicle is detected to be in an abnormal state where the power battery is damaged, the power battery of the vehicle is controlled to be powered down at high voltage, and it is determined whether to open the vehicle's escape passage. If it is determined to open the vehicle's escape passage, the power supply status of the storage battery is detected, and if the power supply status of the storage battery is an abnormal power supply status, a target low-voltage circuit with a normal circuit status is selected from the N low-voltage circuits. The current vehicle data of the vehicle is determined, and the target priority order of the multiple escape passages corresponding to the vehicle is determined based on the current vehicle data. The target low-voltage circuit is controlled to close, so that the target low-voltage circuit supplies power to the outside and activates the escape passage according to the target priority order.

[0017] The solution in this specification embodiment draws a low-voltage circuit from the power battery and supplies power to the doors, windows, or sunroof by closing the low-voltage circuit in case of an emergency where the battery cannot be used normally. This ensures the smooth opening of the escape route and the safety of the people inside the vehicle. In addition, the low-voltage circuit is built on the basis of the existing power battery, without the need to add an additional power source, effectively controlling the vehicle cost.

[0018] To better understand the above technical solutions, the technical solutions of the embodiments of this specification will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. Unless otherwise specified, the embodiments of this specification and the technical features in the embodiments can be combined with each other.

[0019] First, it should be clarified that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0020] The vehicle described in this embodiment is equipped with a power battery, a storage battery, and N low-voltage circuits. Each low-voltage circuit is composed of some cells from the power battery. The value of N can be set according to actual needs, for example, N is 2, 3, etc., and is not limited here. For a better explanation of the low-voltage circuits, please refer to [reference needed]. Figure 1 This is a schematic diagram of the lead configuration for a low-voltage circuit, as shown below. Figure 1As shown, two low-voltage wires can be drawn from the cell plates of the power battery, and the portion of the cells between the two low-voltage wires constitutes the power supply for this low-voltage circuit. It should be noted that when the voltage exceeds 36V, arcing and short circuits may occur between the positive and negative terminals. Therefore, when drawing power from the power battery, the total voltage provided by the cells forming the low-voltage circuit must be less than 36V. In some embodiments, the number of cells forming the low-voltage circuit is four, with a voltage of only 8-17V, far less than 36V, thus avoiding arcing and short circuits between batteries. Of course, the number of cells can also be other than this, as long as the voltage is below the 36V safety voltage and will not cause overload of electrical appliances.

[0021] This specification provides an embodiment of a method for activating a vehicle escape route, such as... Figure 2 As shown, the method includes the following steps: Step S201: If the vehicle is detected to be in an abnormal state where the power battery is damaged, control the power battery of the vehicle to be powered down at high voltage, and determine whether to open the escape route of the vehicle. Step S202: If it is determined that the escape route of the vehicle is to be opened, the power supply status of the battery is detected, and if the power supply status of the battery is abnormal, a target low-voltage circuit with a normal circuit status is selected from the N low-voltage circuits. Step S203: Determine the current vehicle data of the vehicle, and determine the target priority order of multiple escape routes corresponding to the vehicle based on the current vehicle data; Step S204: Control the target low-voltage circuit to close, so that the target low-voltage circuit supplies power to the outside and starts the escape passage according to the target priority order.

[0022] The methods provided in the embodiments of this specification can be applied to vehicles, servers that are connected to vehicles, or systems consisting of vehicles and servers; no limitations are imposed here.

[0023] In step S201, when a vehicle experiences an emergency such as a collision, it is necessary to promptly check the condition of the power battery. If the power battery is damaged, the damaged cells could potentially lead to more serious risks. Power battery damage detection can be achieved in various ways. In some embodiments, the vehicle's battery management system can collect data such as individual cell voltage, total voltage, circuit current, and battery temperature to determine if the power battery is damaged. For example, if the voltage of any individual cell drops beyond a threshold within a very short time (e.g., less than 100ms), the power battery is deemed damaged.

[0024] It should be noted that when the vehicle's power battery is in a normal state, it supplies power to various electrical appliances. At this time, the high-voltage circuit of the power battery is in a closed state, and the N low-voltage circuits are in an open state. When an abnormal state of power battery damage is detected, in this embodiment of the specification, the high-voltage circuit will be disconnected, causing the high voltage of the power battery to drop, thereby effectively avoiding the risks caused by power battery runaway.

[0025] In some embodiments, after detecting that the vehicle is in an abnormal state of damaged power battery, it can be determined whether to open the vehicle's escape route. For example, if a user is detected inside the vehicle, the escape route needs to be opened so that the user can escape from the vehicle in time. If no user is detected inside the vehicle, the escape route does not need to be opened.

[0026] In the embodiments described in this specification, opening an escape route may include opening vehicle doors, windows, or sunroofs.

[0027] In step S202, after confirming that the vehicle's escape route is open and the power battery is powered down, the battery's power supply status can be checked first. Normally, if the battery is undamaged and has a certain amount of stored energy, it can supply power to the escape route to open it smoothly. If the battery is in an abnormal power supply state, power is supplied to the escape route through a low-voltage circuit.

[0028] Battery power supply status can be detected in several ways. For example, it can be determined by detecting the battery voltage and temperature. When the battery voltage is lower than a preset value, it indicates that the battery may be undercharged. When the battery temperature is too high or too low, it may affect battery performance, which can be identified as an abnormal power supply state. Alternatively, the vehicle's battery management system can determine whether a battery fault has been detected. If a fault is detected, the battery is determined to be in an abnormal power supply state.

[0029] In the embodiments described in this specification, the vehicle may be equipped with at least one low-voltage circuit. When the number of low-voltage circuits is one, if the battery power supply is in an abnormal state, the single low-voltage circuit will be used as the target low-voltage circuit to supply power to the escape passage. However, considering that if only one low-voltage circuit is provided, the cells in that low-voltage circuit may be damaged, causing the low-voltage circuit to fail to supply power, therefore, in some embodiments, multiple low-voltage circuits may be provided to ensure that at least one usable normal low-voltage circuit exists when the power battery is damaged.

[0030] It should be noted that selecting a target low-voltage circuit with a normal circuit state from N low-voltage circuits can be achieved in various ways. In some embodiments, the target low-voltage circuit can be determined by the following steps: traversing the N low-voltage circuits, and if it is detected that the voltage of each cell in the currently traversed low-voltage circuit meets the preset voltage range, the currently traversed low-voltage circuit is taken as the target low-voltage circuit.

[0031] Specifically, each low-voltage circuit contains some of the battery cells from the power battery. The number of cells in each low-voltage circuit can be the same or different. Taking a low-voltage circuit containing 4 cells as an example, in determining the target low-voltage circuit, N low-voltage circuits are traversed, and the voltage of the cells in each low-voltage circuit is detected sequentially. In some embodiments, the preset voltage range of each cell can be set according to actual needs. For example, the preset voltage is 2.0V~4.3V. Then, for each traversed low-voltage circuit, it is determined whether the voltage of each cell in the low-voltage circuit is within 2.0V~4.3V. If the voltage of one or more cells in the low-voltage circuit is not within 2.0V~4.3V, it is considered that one or more cells in the low-voltage circuit may be in a thermal runaway state, and the low-voltage circuit cannot be used to supply power to the outside, so the low-voltage circuit is kept disconnected. If the voltage of all cells in the currently traversed low-voltage circuit is between 2.0V and 4.3V, then the low-voltage circuit is in a normal state and can be used as the target low-voltage circuit, which can then be closed to supply power. It should be noted that during the traversal of low-voltage circuits, traversal can stop once the target low-voltage circuit is reached. Of the N low-voltage circuits, only the target low-voltage circuit can be closed, while the remaining low-voltage circuits remain open.

[0032] In step S203, the vehicle includes multiple escape routes, such as doors, windows, and sunroof. The priority order of these escape routes varies depending on the situation. For example, in the event of a collision, doors are the preferred escape route; if the vehicle is submerged and the water level is below the sunroof, the sunroof is the preferred escape route. Therefore, in the implementation of this specification, the target priority order of the vehicle's multiple escape routes can be determined based on current vehicle data.

[0033] In some embodiments, step S203 can be implemented through the following steps: determining the vehicle's environmental perception data and / or vehicle status data; determining the vehicle's current emergency scenario and the availability status of multiple escape routes based on the environmental perception data and / or the vehicle status data; determining an initial priority order corresponding to the current emergency scenario based on a preset mapping relationship between the emergency scenario and the priority order of the multiple escape routes; and determining a target priority order of the multiple escape routes based on the initial priority order and the availability status of the multiple escape routes.

[0034] Specifically, the vehicle's environmental perception data may include, but is not limited to, ambient temperature, smoke concentration, and environmental image data, while the vehicle's status data may include, but is not limited to, changes in vehicle speed, vehicle collision data, vehicle pressure, changes in vehicle posture, and wheel adhesion.

[0035] Because different emergency scenarios have different priorities for escape routes, the current emergency scenario and the availability of multiple escape routes can be determined based on the vehicle's environmental perception data and / or vehicle status data. The current emergency scenario can include, but is not limited to, fire, collision, and water-related scenarios. The availability of multiple escape routes indicates whether each escape route can be opened normally. For example, in a collision scenario, if a door is deformed due to a violent impact, the door is unusable; or, if the external space of the vehicle is small and there is insufficient space for the door to open, the door is also unusable.

[0036] In the implementation of this manual, after determining the current emergency situation of the vehicle, the initial priority order corresponding to the current emergency situation can be determined by querying the preset mapping relationship between the emergency situation and the priority order of multiple escape routes. This preset mapping relationship can be pre-built; for example, in a collision scenario, the priority order of multiple escape routes is: door priority > window priority, and window priority > sunroof priority. Furthermore, since the initial priority order is a general order, and in actual emergency situations, some factors may render certain escape routes unusable—for example, in a collision scenario, if the door is damaged and unusable—the initial priority order for the collision scenario needs to be adjusted, lowering the door priority. For example, the initial priority order corresponding to the collision scenario (door priority > window priority > sunroof priority) can be adjusted to a target priority (window priority > sunroof priority > door priority).

[0037] To better understand the initial priority order of multiple escape routes in the implementation of this manual, the following uses fire scenario, collision scenario, and water scenario as examples to explain the process of determining the initial priority order.

[0038] First scenario: Fire scenario The fire scene identification process is as follows: if the ambient temperature is greater than a preset temperature threshold and the smoke concentration is greater than a preset smoke concentration, the current emergency scene is determined to be a fire scene. Furthermore, based on a preset mapping relationship between the emergency scene and the priority order of multiple escape routes, a first priority order corresponding to the fire scene is determined as the initial priority order.

[0039] Specifically, when a fire occurs, the ambient temperature usually reaches a high level, and a large amount of dense smoke is produced. Therefore, when a vehicle detects that the ambient temperature is higher than a preset temperature threshold and the smoke concentration is higher than a preset smoke concentration, the current dangerous scenario can be determined to be a fire scenario. The preset temperature threshold and preset smoke concentration can be set based on actual needs and are not limited here.

[0040] In some embodiments, the first priority order corresponding to the fire scenario, from highest to lowest priority, can be: vehicle door, vehicle window, and sunroof.

[0041] The second type: Collision scenarios The collision scenario identification process is as follows: if the vehicle collision data indicates that the vehicle has been impacted, the change in vehicle speed is greater than a preset change, and the vehicle body pressure is greater than a preset pressure, the current dangerous scenario is determined to be a collision scenario. Furthermore, based on a preset mapping relationship between dangerous scenarios and the priority order of multiple escape routes, a second priority order corresponding to the collision scenario is determined as the initial priority order.

[0042] Specifically, collision sensors can be installed on the vehicle. When a collision occurs, the collision sensors acquire collision data. Additionally, at the moment of collision, the longitudinal or lateral velocity change of the vehicle exceeds a preset change, and the vehicle body pressure changes due to external force. Therefore, in this embodiment, if the detected vehicle collision data indicates that the vehicle has been impacted, the vehicle velocity change exceeds a preset change, and the vehicle body pressure exceeds a preset pressure, then the current hazard is determined to be a collision hazard. The preset change and preset pressure can be set according to actual needs and are not limited here.

[0043] In some embodiments, the second priority order corresponding to the collision scenario, from highest to lowest priority, can be: door, window, sunroof.

[0044] The third scenario: falling into the water. The process for identifying a water-falling scenario is as follows: If the environmental image data indicates that the vehicle is in a water environment, the vehicle's attitude change is greater than a preset attitude change, and the wheel adhesion is less than a preset adhesion, then the current dangerous scenario is determined to be a water-falling scenario. Furthermore, based on a preset mapping relationship between the dangerous scenario and the priority order of multiple escape routes, a third priority order corresponding to the water-falling scenario is determined as the initial priority order.

[0045] Specifically, when a vehicle falls into water, its body is submerged. Due to the buoyancy and impact of the water, the vehicle's attitude changes significantly. For example, its pitch and roll angles will change noticeably. Additionally, the wheels will slip abnormally due to loss of traction. Therefore, wheel traction can be used as an auxiliary parameter to determine if a vehicle has fallen into water. If a camera mounted on the vehicle captures images of its surroundings, and the environmental data indicates that the vehicle is in a water environment, and the vehicle's attitude change is greater than a preset attitude change and the wheel traction is less than a preset traction, then the current emergency situation can be determined to be a water-fall scenario. The preset attitude change and preset traction can be set according to actual needs and are not limited here.

[0046] In some embodiments, the water-falling scenario can be further subdivided. For example, the water level outside the vehicle can be identified using environmental image data. If the water level is within the first water level range that does not submerge the vehicle door, the corresponding third priority order from high to low can be: vehicle door, vehicle window, sunroof. If the water level is within the second water level range that has submerged the vehicle door but is below half the height of the vehicle window, the corresponding third priority order from high to low can be: vehicle window, sunroof, door. If the water level is within the third water level range that has submerged the vehicle window but not the sunroof, the corresponding third priority order from high to low can be: sunroof, vehicle window, door.

[0047] In the embodiments of this specification, after determining the initial priority order, the initial priority order can be adjusted based on the availability of multiple escape routes to obtain the final target priority order. It should be noted that the availability of escape routes can be determined in various ways. For example, for car doors, their functionality can be determined by checking if the door is deformed and jammed, or if the electronic door lock system is functioning properly. For car windows, their functionality can be determined by checking if the window is deformed, or if it can be raised and lowered normally. For sunroofs, their functionality can be determined by checking if the sunroof is deformed, if the vehicle has overturned, or if the sunroof control system is functioning properly.

[0048] In step S204, after determining the target low-voltage circuit and the target priority order of multiple escape channels, the target low-voltage circuit can be closed to supply power to the outside, and the escape channels can be activated according to the target priority order.

[0049] In some embodiments, step S204 can be implemented by the following steps: based on the target priority order, the escape passage with the highest priority is selected as the target escape passage, and the target escape passage is controlled to open. If the target escape passage fails to open, the next priority escape passage is selected as the target escape passage and the target escape passage is controlled to open again, until an escape passage is opened.

[0050] Specifically, based on the priority order of the targets, each escape route is designated as a target escape route in sequence. For example, if the priority order from high to low is car doors, windows, and sunroof, then the car doors can be designated as the target escape route first, and their opening can be controlled. If the car doors cannot be opened, then the car windows can be designated as the target escape route, and their opening can be controlled. If the car windows open successfully, the opening of subsequent escape routes can be stopped. Of course, all available escape routes can also be opened as needed; this is not a limitation.

[0051] It should be understood that the order of steps S201-S204 can be adjusted as needed, and the execution order of S201-S204 is not limited here. In some embodiments, the target priority order of multiple escape routes can be determined first, and then the target low-voltage circuit can be screened. For example, when the vehicle is in an abnormal state where the power battery is damaged, the vehicle control module performs high-voltage power-off and determines whether the escape route needs to be opened. If the escape route needs to be opened, the target priority order of multiple escape routes is determined. For example, if the target priority order from high to low is door, window, sunroof, and the N low-voltage circuits include the first low-voltage circuit and the second low-voltage circuit, then the door is controlled to open first. If the door fails to open normally, the battery status is judged. If the battery cannot supply power normally, the first low-voltage circuit is tried to be closed first. If the first low-voltage circuit can work normally, the door is tried to be opened again. If the first low-voltage circuit cannot work normally, the second low-voltage circuit is tried to be closed, and the door is tried to be opened again. If the doors still cannot be opened after the first or second low-voltage circuit is working properly, the windows will be opened according to the priority order of the targets, and so on, until the escape route can be opened normally.

[0052] For a better explanation of the low-voltage and high-voltage circuits in this application, please refer to [reference needed]. Figure 3 , Figure 3 This is a schematic diagram of the vehicle's power supply circuit. Figure 3It contains two low-voltage circuits, a first low-voltage circuit and a second low-voltage circuit. Each low-voltage circuit includes its own control module and detection module. The control module controls the opening and closing of the low-voltage circuit, and the detection module detects whether the low-voltage circuit is in a normal state. Under normal operating conditions of the power battery, both the first and second low-voltage circuits are open, and the high-voltage circuit is closed, supplying power to electrical appliances through the high-voltage circuit. When the power battery malfunctions, the high-voltage circuit opens, and either the first or second low-voltage circuit closes, supplying power through the closed low-voltage circuit.

[0053] In summary, the method provided in the embodiments of this specification allows for external power supply via a low-voltage circuit even when the vehicle's power battery malfunctions or is de-energized at high voltage, without introducing new risks of arcing or short-circuit failure. The low-voltage circuit enables the orderly opening of escape routes such as doors, windows, and sunroofs, ensuring the safety of occupants. Furthermore, the low-voltage circuit is built upon the existing power battery, eliminating the need for additional power sources and effectively controlling vehicle costs.

[0054] Based on the same inventive concept, embodiments of this specification also provide a vehicle escape route activation device. The vehicle includes a power battery, a storage battery, and N low-voltage circuits, wherein each low-voltage circuit is composed of a portion of the battery cells in the power battery, and N is a positive integer, such as... Figure 4 As shown, the device includes: The processing module 401 is used to control the power battery of the vehicle to be powered down at high voltage when the vehicle is detected to be in an abnormal state where the power battery is damaged, and to determine the power supply status of the battery. The low-voltage circuit determination module 402 is used to select a target low-voltage circuit with a normal circuit status from the N low-voltage circuits when the power supply status of the battery is in an abnormal power supply state. The escape route priority determination module 403 is used to determine the current vehicle data of the vehicle and determine the target priority order of multiple escape routes corresponding to the vehicle based on the current vehicle data. The control module 404 is used to control the closure of the target low-voltage circuit so that the target low-voltage circuit supplies power to the outside and starts the escape channel according to the target priority sequence.

[0055] In some implementations, the low-voltage loop determination module 402 is used for: The N low-voltage circuits are traversed. If it is detected that the voltage of each cell in the currently traversed low-voltage circuit meets the preset voltage range, the currently traversed low-voltage circuit is taken as the target low-voltage circuit.

[0056] In some implementations, the escape route priority determination module 403 is used for: Determine the environmental perception data and / or vehicle body status data of the vehicle; Based on the environmental perception data and / or the vehicle body status data, determine the current dangerous situation of the vehicle and the availability status of multiple escape routes; Based on the preset mapping relationship between the emergency scenario and the priority order of multiple escape routes, the initial priority order corresponding to the current emergency scenario is determined; Based on the initial priority order and the availability status of the multiple escape routes, the target priority order of the multiple escape routes is determined.

[0057] In some implementations, the environmental sensing data includes ambient temperature and smoke concentration. The escape route priority determination module 403 is also used for: If the ambient temperature is greater than a preset temperature threshold and the smoke concentration is greater than a preset smoke concentration, the current emergency scenario is determined to be a fire scenario. Based on the preset mapping relationship between the emergency scenario and the priority order of multiple escape routes, the first priority order corresponding to the fire scenario is determined as the initial priority order.

[0058] In some embodiments, the vehicle body status data includes vehicle speed change, vehicle collision data, and vehicle body pressure. The escape route priority determination module 403 is also used for: If the vehicle collision data indicates that the vehicle has been impacted, the change in vehicle speed is greater than a preset change, and the pressure on the vehicle body is greater than a preset pressure, then the current dangerous situation is determined to be a collision scenario. Based on the preset mapping relationship between the emergency scenario and the priority order of multiple escape routes, the second priority order corresponding to the collision scenario is determined as the initial priority order.

[0059] In some embodiments, the environmental state data includes environmental image data, the vehicle body state data includes vehicle attitude change and wheel adhesion, and the escape route priority determination module 403 is further used for: If the environmental image data indicates that the vehicle is in a water environment, the vehicle's attitude change is greater than a preset attitude change, and the wheel adhesion is less than a preset adhesion, then the current dangerous situation is determined to be a water fall scenario. Based on the preset mapping relationship between the danger scenario and the priority order of multiple escape routes, the third priority order corresponding to the drowning scenario is determined as the initial priority order.

[0060] In some implementations, the control module 404 is used for: Based on the target priority order, the highest priority escape route is selected as the target escape route and is controlled to open. If the target escape route fails to open, the next priority escape route is selected as the target escape route and is controlled to open again, until an escape route is opened.

[0061] Regarding the above-mentioned device, the specific implementation of each step has been described in detail in the embodiment of the vehicle escape passage activation method provided in the specification, and will not be elaborated here.

[0062] Based on the same inventive concept, embodiments of the present invention also provide a vehicle escape route activation device, such as... Figure 5 The device includes a memory 504, a processor 502, and a computer program stored in the memory 504 and executable on the processor 502. When the processor 502 executes the program, it implements any of the above-described methods for activating the vehicle escape route.

[0063] Among them, Figure 5 In this document, a bus architecture (represented by bus 500) is used. Bus 500 may include any number of interconnected buses and bridges, linking various circuits including one or more processors represented by processor 502 and memory represented by memory 504. Bus 500 may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 505 provides an interface between bus 500 and receiver 501 and transmitter 503. Receiver 501 and transmitter 503 may be the same element, i.e., a transceiver, providing a unit for communicating with various other devices over a transmission medium. Processor 502 is responsible for managing bus 500 and general processing, while memory 504 can be used to store data used by processor 502 during operation.

[0064] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0065] Those skilled in the art will understand that embodiments of this application can provide methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-readable storage media containing computer-readable program code.

[0066] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0067] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0068] These computer program instructions can also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0069] Based on the same inventive concept, embodiments of this specification provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described vehicle escape passage activation method.

[0070] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, computer instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium may be any usable medium that a computer can store or a data storage device such as a server or data center that integrates one or more usable media. The usable medium may be a magnetic medium, an optical medium, or a semiconductor medium, etc.

[0071] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0072] Based on the same inventive concept, embodiments of this specification provide a computer program product, which includes a computer program that, when executed by a processor, is used to load and execute the steps of the above-described vehicle escape passage activation method.

[0073] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored as one or more instructions or code on or transmitted via a computer-readable medium. Other examples and embodiments are within the scope of this invention and the appended claims. For example, due to the nature of software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Furthermore, the functional units can be integrated into a single processing unit, or each unit can exist physically separately, or two or more units can be integrated into a single unit.

[0074] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0075] The units described as separate components may or may not be physically separate. Similarly, the components of the control device may or may not be physical units; they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0076] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the 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 to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0077] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A method for activating a vehicle escape route, characterized in that, The vehicle includes a power battery, a storage battery, and N low-voltage circuits, wherein each low-voltage circuit is composed of a portion of the cells in the power battery, and N is a positive integer. The method includes: If the vehicle is detected to be in an abnormal state where the power battery is damaged, control the power battery of the vehicle to be powered down at high voltage, and determine whether to open the vehicle's escape route. If it is determined that the escape route of the vehicle is to be opened, the power supply status of the battery is detected, and if the power supply status of the battery is abnormal, a target low-voltage circuit with a normal circuit status is selected from the N low-voltage circuits. Determine the current vehicle data of the vehicle, and determine the target priority order of multiple escape routes corresponding to the vehicle based on the current vehicle data; Control the closure of the target low-voltage circuit so that the target low-voltage circuit supplies power to the outside and activates the escape passage according to the target priority sequence.

2. The method as described in claim 1, characterized in that, The selection of the target low-voltage circuit whose circuit status is normal from the N low-voltage circuits includes: The N low-voltage circuits are traversed. If it is detected that the voltage of each cell in the currently traversed low-voltage circuit meets the preset voltage range, the currently traversed low-voltage circuit is taken as the target low-voltage circuit.

3. The method as described in claim 1, characterized in that, The step of determining the current vehicle data of the vehicle and determining the target priority order of multiple escape routes corresponding to the vehicle based on the current vehicle data includes: Determine the environmental perception data and / or vehicle body status data of the vehicle; Based on the environmental perception data and / or the vehicle body status data, determine the current dangerous situation of the vehicle and the availability status of multiple escape routes; Based on the preset mapping relationship between the emergency scenario and the priority order of multiple escape routes, the initial priority order corresponding to the current emergency scenario is determined; Based on the initial priority order and the availability status of the multiple escape routes, the target priority order of the multiple escape routes is determined.

4. The method as described in claim 3, characterized in that, The environmental perception data includes ambient temperature and smoke concentration. Determining the current danger scenario of the vehicle based on the environmental perception data and / or the vehicle body status data includes: If the ambient temperature is greater than a preset temperature threshold and the smoke concentration is greater than a preset smoke concentration, the current emergency scenario is determined to be a fire scenario. Based on the preset mapping relationship between the emergency scenario and the priority order of multiple escape routes, the first priority order corresponding to the fire scenario is determined as the initial priority order.

5. The method as described in claim 3, characterized in that, The vehicle status data includes vehicle speed change, vehicle collision data, and vehicle pressure. Determining the current emergency scenario of the vehicle based on the environmental perception data and / or the vehicle status data includes: If the vehicle collision data indicates that the vehicle has been impacted, the change in vehicle speed is greater than a preset change, and the pressure on the vehicle body is greater than a preset pressure, then the current dangerous situation is determined to be a collision scenario. Based on the preset mapping relationship between the emergency scenario and the priority order of multiple escape routes, the second priority order corresponding to the collision scenario is determined as the initial priority order.

6. The method as described in claim 3, characterized in that, The environmental state data includes environmental image data, and the vehicle body state data includes vehicle attitude change and wheel adhesion. Determining the current danger scenario of the vehicle based on the environmental perception data and / or the vehicle body state data includes: If the environmental image data indicates that the vehicle is in a water environment, the vehicle's attitude change is greater than a preset attitude change, and the wheel adhesion is less than a preset adhesion, then the current dangerous situation is determined to be a water fall scenario. Based on the preset mapping relationship between the danger scenario and the priority order of multiple escape routes, the third priority order corresponding to the drowning scenario is determined as the initial priority order.

7. The method as described in claim 3, characterized in that, The control of closing the target low-voltage circuit to enable the target low-voltage circuit to supply power to the outside and activate the escape passage according to the target priority sequence includes: Based on the target priority order, the highest priority escape route is selected as the target escape route and is controlled to open. If the target escape route fails to open, the next priority escape route is selected as the target escape route and is controlled to open again, until an escape route is opened.

8. A vehicle escape route activation device, characterized in that, The vehicle includes a power battery, a storage battery, and N low-voltage circuits, wherein each low-voltage circuit is composed of a portion of the cells in the power battery, and N is a positive integer. The device includes: The processing module is used to control the vehicle's power battery to shut down at high voltage when the vehicle is detected to be in an abnormal state where the power battery is damaged, and to determine the power supply status of the battery. The low-voltage circuit determination module is used to select a target low-voltage circuit with a normal circuit status from the N low-voltage circuits when the power supply status of the battery is in an abnormal power supply state. The escape route priority determination module is used to determine the current vehicle data of the vehicle and determine the target priority order of multiple escape routes corresponding to the vehicle based on the current vehicle data. The control module is used to control the closure of the target low-voltage circuit, so that the target low-voltage circuit supplies power to the outside and activates the escape passage according to the target priority sequence.

9. A vehicle escape route activation device, characterized in that, It includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the method according to any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The device contains a computer program that, when executed by a processor, implements the steps of the method described in any one of claims 1-7.

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