Vehicle battery pack power control method, device, electronic equipment and vehicle

Abstract

The present disclosure relates to a vehicle battery pack power control method, device, electronic device and vehicle, belonging to the technical field of new energy vehicles, the method includes: obtaining first state information corresponding to the vehicle, second state information corresponding to the target obstacle and environmental information; based on the first state information, the second state information and the environmental information, predicting the type of collision between the vehicle and the target obstacle; obtaining power control information corresponding to the collision type; outputting the power control information, the power control information is used to control the power of the battery pack. The method can make the battery pack power control more timely, avoiding the fire problem caused by the untimely battery pack power control after the collision.

Description

Technical Field

[0001] The present disclosure relates to the technical field of new energy vehicles, and in particular, to a vehicle battery pack power control method, device, electronic equipment and vehicle. Background Art

[0002] The three-electric systems of new energy vehicles are all high-voltage components. When the vehicle encounters a collision, the high-voltage components of the vehicle will cause structural displacement due to the collision, resulting in a short circuit and causing the vehicle to catch fire.

[0003] In order to avoid this risk, in the related technology, after a vehicle collision occurs, a collision sensor is used to detect whether the collision intensity of the vehicle has reached a certain threshold. After reaching the threshold, a signal is sent to the pyrotechnic switch to control the first pyrotechnic switch to blow up the battery pack output circuit, and at the same time control the second pyrotechnic switch to connect the discharge circuit, thereby achieving high-voltage power-off and discharge. Since the control is only performed after the collision occurs, there is a problem of untimely control. Summary of the invention

[0004] In order to solve the problem of new energy vehicles catching fire due to untimely power-off control after a collision, the present disclosure provides a vehicle battery pack power control method, device, electronic equipment and vehicle.

[0005] In order to achieve the above objectives, in a first aspect, the present disclosure provides a vehicle battery pack power control method, the method comprising:

[0006] Acquire first state information corresponding to the vehicle, second state information corresponding to the target obstacle, and environmental information;

[0007] Predicting a collision type between the vehicle and the target obstacle based on the first state information, the second state information, and the environmental information;

[0008] Acquire power control information corresponding to the collision type;

[0009] The power control information is output, where the power control information is used to control the power of the battery pack.

[0010] Optionally, predicting the collision type between the vehicle and the target obstacle based on the first state information, the second state information, and the environmental information includes:

[0011] Based on the first state information, the second state information and the environmental information, predict whether the vehicle collides with the target obstacle;

[0012] In the case of predicting that the vehicle collides with the target obstacle, determining a risk type corresponding to the target obstacle based on the second state information, and predicting a relative speed at a time when the vehicle collides with the target obstacle based on the first state information, the second state information, and the environmental information, the risk type characterizing a collision hazard caused by the target obstacle to the vehicle;

[0013] Based on the relative speed and the risk type, the collision type is predicted.

[0014] Optionally, the risk type includes a high-risk collision object and a low-risk collision object, and predicting the collision type based on the relative speed and the risk type includes:

[0015] When the relative speed satisfies a first speed threshold range and the risk type is a high-risk collision object, predicting that the collision type of the vehicle is a first type;

[0016] When the relative speed meets a second speed threshold range and the risk type is a high-risk collision object, predicting that the collision type of the vehicle is a second type;

[0017] The relative speed corresponding to the first speed threshold range is greater than the relative speed corresponding to the second speed threshold range.

[0018] Optionally, the power control information includes first control information for controlling a pyrotechnic switch to explode an output circuit of a battery pack or second control information for controlling a contactor of a battery pack to disconnect, and the acquiring of the power control information corresponding to the collision type includes:

[0019] When the collision type is the first type, using the first control information as the power control information; or

[0020] When the collision type is the second type, the second control information is used as the power control information.

[0021] Optionally, the collision type is the second type, and the acquiring power control information corresponding to the collision type includes:

[0022] using the second control information as the power control information;

[0023] After outputting the power control information, the method further includes:

[0024] When the preset conditions are met, the state of the battery pack contactor is obtained;

[0025] When the state of the battery pack contactor is an abnormal connection state, the power supply control information is changed to the first control information.

[0026] Optionally, the abnormal connection state is a sticky state.

[0027] Optionally, the method further comprises:

[0028] When the collision type is the first type or the second type, auxiliary braking information and braking prompt information are output, and the auxiliary braking information is used to control the vehicle braking device to perform auxiliary braking.

[0029] Optionally, the method further comprises:

[0030] When the collision type is the first type or the second type, discharge information is output, and the discharge information is used to control the vehicle to discharge.

[0031] In a second aspect, the present disclosure provides a vehicle battery pack power control device, the device comprising:

[0032] A first acquisition module, used to acquire first state information corresponding to the vehicle, second state information corresponding to the target obstacle, and environmental information;

[0033] a prediction module, configured to predict a collision type between the vehicle and the target obstacle based on the first state information, the second state information, and the environmental information;

[0034] A second acquisition module, used to acquire power control information corresponding to the collision type;

[0035] The first output module is used to output the power control information, and the power control information is used to control the power of the battery pack.

[0036] In a third aspect, the present disclosure provides an electronic device, characterized in that it includes:

[0037] a memory having a computer program stored thereon;

[0038] A processor is used to execute the computer program in the memory to implement the steps of any one of the methods described in the first aspect of the present disclosure.

[0039] In a fourth aspect, the present disclosure provides a vehicle, comprising the electronic device described in the third aspect of the present disclosure.

[0040] Through the above technical solution, the first state information corresponding to the vehicle, the second state information corresponding to the target obstacle and the environmental information are first obtained; then based on the first state information, the second state information and the environmental information, the collision type between the vehicle and the target obstacle is predicted; then the power control information corresponding to the collision type is obtained; finally, the power control information is output, and the power control information is used to control the power of the battery pack. Since the corresponding power control information is obtained and output for control based on the predicted collision type, the power of the battery pack can be controlled before the actual collision occurs, making the power control of the battery pack more timely, and avoiding the fire problem caused by the untimely power control of the battery pack after the collision.

[0041] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0043] Figure 1 is a flow chart of a vehicle battery pack power control method according to an exemplary embodiment;

[0044] Figure 2 is based on Figure 1 A flow chart of step 110 is shown in the illustrated embodiment;

[0045] Figure 3 is a block diagram of a vehicle battery pack power control device according to an exemplary embodiment;

[0046] Figure 4 is a block diagram of an electronic device according to an exemplary embodiment;

[0047] Figure 5 is a block diagram of a vehicle according to an exemplary embodiment. DETAILED DESCRIPTION

[0048] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0049] Figure 1This is a flow chart of a vehicle battery pack power control method according to an exemplary embodiment. The method can be applied to a vehicle, specifically, an electronic device with processing capabilities in the vehicle, such as a vehicle safety control module, a vehicle controller, etc., which is not limited in the present disclosure. The method includes the steps of:

[0050] S110, obtaining first state information corresponding to the vehicle, second state information corresponding to the target obstacle, and environmental information.

[0051] The first state information corresponding to the vehicle can be understood as the state information of the vehicle itself, and can optionally include state information such as the speed and acceleration of the vehicle.

[0052] In some implementations, status information such as the speed and acceleration of the vehicle may be obtained through a vehicle speed signal provided by the vehicle itself.

[0053] Obstacles can be understood as any other objects in the environment of the vehicle that are different from the vehicle body, such as buildings, people, animals, plants, etc. Target obstacles can be understood as objects selected by the above electronic device for determining the collision type of the vehicle. It is understandable that the electronic device in the vehicle can determine any obstacle as a target obstacle.

[0054] The second state information corresponding to the target obstacle can be understood as the state information of the target obstacle itself, and can optionally include information such as the speed, acceleration, and shape of the target obstacle.

[0055] In some embodiments, the speed and acceleration of the target obstacle can be detected by a millimeter-wave radar installed on the vehicle. The shape of the target obstacle can be acquired by a visual sensor installed on the vehicle. In other embodiments, the shape of the obstacle can also be determined by a high-precision map built into the vehicle to assist the visual sensor. For example, the current position of the vehicle can be known through a high-precision map. At the same time, the high-precision map can also mark each obstacle in the environment. The shape of the target obstacle can be acquired more accurately by assisting the visual sensor with a high-precision map.

[0056] Environmental information can be understood as information that is different from the vehicle itself and the target obstacle itself. Optionally, it can include the real-time distance between the vehicle and the target obstacle, the driving state of the vehicle driver (the driving state includes different degrees of fatigue, the greater the fatigue, the greater the driver's braking redundancy time), weather conditions (for example, if the weather condition is rainy, the road friction is small, and the braking redundancy time is also increased), etc.

[0057] In some embodiments, the real-time distance between the vehicle and the target obstacle can be obtained by detecting the millimeter-wave radar installed on the vehicle, the driving status of the vehicle driver can be obtained by collecting and analyzing the video camera installed on the vehicle, and the weather conditions can be obtained through weather information synchronized with the vehicle's external camera and the built-in high-precision map.

[0058] S120: predicting a collision type between the vehicle and a target obstacle based on the first state information, the second state information, and the environmental information.

[0059] After obtaining the first state information corresponding to the vehicle, the second state information corresponding to the target obstacle and the environmental information, analysis and processing can be performed based on the first state information, the second state information and the environmental information to predict the type of collision between the vehicle and the target obstacle.

[0060] S130: Acquire power control information corresponding to the collision type.

[0061] In some embodiments, the electronic device may pre-store the corresponding relationship between the collision type and the power control information, so that after the collision type between the vehicle and the target obstacle is predicted, the power control information corresponding to the collision type may be obtained.

[0062] S140: Output power control information, where the power control information is used to control the power of the battery pack.

[0063] After obtaining the power control information corresponding to the collision type, the electronic device can output the power control information to control the corresponding execution device to control the power of the battery pack according to the power control information.

[0064] In the disclosed embodiment, the first state information corresponding to the vehicle, the second state information corresponding to the target obstacle, and the environmental information are first obtained; then, based on the first state information, the second state information, and the environmental information, the type of collision between the vehicle and the target obstacle is predicted; then, the power control information corresponding to the collision type is obtained; and finally, the power control information is output, and the power control information is used to control the power of the battery pack. Since the corresponding power control information is obtained and output for control based on the predicted collision type, the power supply of the battery pack can be controlled before the actual collision occurs, making the power supply control of the battery pack more timely, and avoiding the fire problem caused by the untimely power supply control of the battery pack after the collision. In addition, selecting the corresponding power control information for different collision types can reduce the damage to the vehicle compared to selecting a single type of power control information for power control.

[0065] In some optional implementations, predicting the type of collision between the vehicle and the target obstacle based on the first state information, the second state information, and the environment information may specifically include the following steps:

[0066] S111. Predicting whether the vehicle collides with the target obstacle based on the first state information, the second state information and the environmental information.

[0067] S112. In case that the vehicle is predicted to collide with the target obstacle, based on the second state information, a risk type corresponding to the target obstacle is determined, and based on the first state information, the second state information and the environmental information, a relative speed at the moment when the vehicle collides with the target obstacle is predicted, the risk type characterizing the collision hazard caused by the target obstacle to the vehicle.

[0068] S113. Predict the collision type based on the relative speed and the risk type.

[0069] In the disclosed embodiment, it is possible to first determine whether the vehicle and the target obstacle will collide based on the first state information, the second state information, and the environmental information. That is, it is possible to predict whether the vehicle and the target obstacle will collide based on the speed and acceleration of the vehicle, the speed and acceleration of the target obstacle, the real-time distance between the vehicle and the target obstacle, the driving state of the vehicle driver, weather conditions, and other information.

[0070] It is understandable that there may be danger when the vehicle collides with the target obstacle. Therefore, in the case of predicting the collision between the vehicle and the target obstacle, the risk type corresponding to the target obstacle can be determined based on the second state information, and the relative speed of the vehicle at the moment of collision with the target obstacle can be predicted based on the first state information, the second state information and the environmental information, so as to determine the collision hazard of the target obstacle to the vehicle after the vehicle collides with the target obstacle through the risk type of the target obstacle and the relative speed of the vehicle at the moment of collision with the target obstacle. It is understandable that the relative speed at the moment of collision between the vehicle and the target obstacle refers to the relative speed at the moment before the collision between the vehicle and the obstacle.

[0071] In some embodiments, the risk type corresponding to the target obstacle can be determined based on the shape of the target obstacle included in the second state information. Optionally, the shape of the target obstacle can include two types: a hard object and a soft object, and accordingly, the risk type can correspond to two types: a high-risk collision object and a low-risk collision object. Exemplarily, when the shape of the target obstacle is a hard object, the risk type corresponding to the target obstacle can be determined to be a high-risk collision object (buildings, roadside trees, etc.), and when the shape of the target obstacle is a soft object (people, animals, etc.), the risk type corresponding to the target obstacle can be determined to be a low-risk collision object.

[0072] Finally, the relative speed and risk type can be combined to predict the collision type of the vehicle relative to the target obstacle.

[0073] By adopting the method of the above embodiment, since the relative speed and risk type are taken into account when predicting the collision type of the vehicle with respect to the target obstacle, while considering whether the vehicle collides with the target obstacle, it is also possible to further consider the collision hazard brought by the target obstacle to the vehicle after the collision, thereby providing a more detailed collision type, and then correspondingly providing more detailed power control information, thereby improving the accuracy of battery pack power control.

[0074] In combination with the above content, it can be known that in some embodiments, the risk type may include a high-risk collision object and a low-risk collision object. In this case, based on the relative speed and the risk type, the collision type is predicted, including:

[0075] When the relative speed meets the first speed threshold range and the risk type is a high-risk collision object, the collision type of the vehicle is predicted to be the first type.

[0076] When the relative speed meets the second speed threshold range and the risk type is a high-risk collision object, the collision type of the vehicle is predicted to be the second type.

[0077] In the disclosed embodiment, speed threshold ranges corresponding to different collision types may be calibrated in advance, so that when the predicted relative speed falls within a certain calibrated speed threshold range, the collision type may be further determined in combination with the risk type.

[0078] In the disclosed embodiment, the relative speed corresponding to the first speed threshold range is greater than the relative speed corresponding to the second speed threshold range.

[0079] Exemplarily, the first speed threshold range may be a relative speed greater than 30 KM / h, and the second speed threshold range may be a relative speed greater than 0 and less than or equal to 30 KM / h.

[0080] It is understandable that the greater the relative speed, the greater the harm caused by the collision between the vehicle and the target obstacle. When the risk type corresponding to the target obstacle is a high-risk collision object, the harm caused by the collision between the vehicle and the target obstacle is greater than when it is a low-risk collision object. For example, a vehicle crashing into a building usually causes greater harm to the vehicle, while crashing into a soft obstacle may cause less harm to the vehicle. Therefore, in the case of comprehensive consideration of the relative speed and the risk type, in the embodiment of the present disclosure, when the relative speed meets the first speed threshold range and the risk type is a high-risk collision object, the collision type of the vehicle can be predicted to be the first type, and when the relative speed meets the second speed threshold range and the risk type is a high-risk collision object, the collision type of the vehicle can be predicted to be the second type.

[0081] Among them, the first collision type can be understood as a collision type with greater harm, that is, a serious collision, and the second collision type can be understood as a collision type with less harm, that is, a general collision. In this case, in some embodiments, corresponding power control information can be set for different collision types. Then, in the case where the collision type includes the first collision type and the second collision type, the first control information for controlling the pyrotechnic switch to explode the battery pack output circuit or the second control information for controlling the battery pack contactor to disconnect can be set accordingly. At this time, obtaining the power control information corresponding to the collision type can specifically include the following steps:

[0082] When the collision type is the first type, using the first control information as power control information; or

[0083] When the collision type is the second type, the second control information is used as the power control information.

[0084] Among them, controlling the pyrotechnic switch to explode the battery pack output circuit is an irreversible control method, that is, the battery pack can no longer easily provide power after control, and needs to be repaired by a maintenance organization. Therefore, it can be used when the vehicle has a serious collision; controlling the battery pack contactor to disconnect is a reversible control method. In general collisions, since the structural offset of the high-voltage components is not serious and the risk of short circuit is relatively small, this control method can be used; and when no collision occurs, short circuit usually does not occur. Therefore, the battery pack power supply can be left uncontrolled, that is, the battery pack is maintained to have normal power supply.

[0085] By using the first control information as the power control information when the collision type is the first type, it is possible to avoid using the first control information as the power control information in other collision types, thereby avoiding selecting the first control information as the power control information in general collision situations, which would cause unnecessary and irreversible harm to the vehicle. At the same time, when the collision type is the second type, using the second control information as the power control information can avoid the time delay problem inherent in the method of controlling the disconnection of the battery pack contactor because the collision is predicted in advance and the second control information is used as the power control information, further avoiding the problem of fire caused by untimely power control of the battery pack when the vehicle uses the method of disconnecting the battery pack contactor after the collision.

[0086] In addition, in some cases, considering that after a vehicle collision, the actuators inside the vehicle may fail, for example, the battery pack contactor fails. In this case, when the predicted collision type is the second type, the vehicle can use the second control information as power control information, and output the second control information for controlling the disconnection of the battery pack contactor to notify the battery pack contactor to disconnect the contact with the battery pack. However, the battery pack contactor may still be connected to the battery pack due to the failure of the battery pack contactor. In this case, the power supply of the battery pack cannot be disconnected, and there may be a risk of short circuit. Therefore, in other optional embodiments, after outputting the power control information, the method also includes: obtaining the status of the battery pack contactor when a preset condition is met; and changing the power control information to the first control information when the status of the battery pack contactor is an abnormal connection state.

[0087] There are multiple types of preset conditions.

[0088] Optionally, the preset condition may be a time condition, that is, the state of the battery pack contactor is obtained a period of time after the vehicle sends the second control information.

[0089] Optionally, the preset condition may be receiving a determination instruction returned by a vehicle controller or a battery contactor control device, and the determination instruction may indicate that an instruction to execute disconnection has been issued to the battery contactor.

[0090] The state of the battery pack contactor may be a disconnected state or an abnormally connected state.

[0091] When the battery pack contactor is in an abnormal connection state, the battery pack can still provide high-voltage power, and there is a risk of short circuit causing vehicle fire. Therefore, in this case, the power control information can be changed to the first control information to control the pyrotechnic switch to blow up the battery pack output circuit.

[0092] In some embodiments, the abnormal connection state is an adhesion state.

[0093] In addition, considering that the embodiments of the present disclosure can predict whether the vehicle and the target obstacle will collide and the harmfulness after the collision, in other optional embodiments, when it is predicted that the vehicle and the target obstacle will collide causing harm, that is, when the collision type is the first type or the second type, auxiliary braking information and braking prompt information can be output, and the auxiliary braking information is used to control the vehicle braking device to perform auxiliary braking.

[0094] Among them, controlling the vehicle braking device to perform auxiliary braking may include controlling the braking device to brake, controlling the engine to reduce the speed, etc. The prompt information can be displayed on the central control screen in text form, or broadcasted in voice form.

[0095] By adopting the above method, by outputting auxiliary braking information and braking prompt information when the collision type is the first type or the second type, the vehicle can be assisted in braking to avoid collision between the vehicle and the target obstacle. At the same time, the user can be prompted to understand the reasons why the vehicle takes these actions, which can be more intuitively prompted to the driver and remind other vehicles that the vehicle is performing braking.

[0096] In addition, considering that the embodiments of the present disclosure can disconnect the high-voltage circuit by controlling the pyrotechnic switch to explode the battery pack output circuit or controlling the battery pack contactor to disconnect before the vehicle collides with the target obstacle, the embodiments of the present disclosure can adopt the method of early discharge for discharge, that is, when the collision type is the first type or the second type, the discharge information is output, and the discharge information is used to control the vehicle to discharge.

[0097] By adopting the above method, since it is possible to predict whether the vehicle will collide with the target obstacle and the harm after the collision, when it is predicted that the collision may cause harm and the battery pack power is disconnected in advance, high-voltage discharge can be performed in advance before the collision. In this way, even if the vehicle finally collides with the target obstacle, there is no high-voltage electricity and there is no risk of fire. Compared with the related art of using a second pyrotechnic switch to blast the discharge circuit after the collision and setting up a separate discharge circuit, it can save material resources and vehicle body space resources.

[0098] In combination with the foregoing content, it can be seen that since controlling the disconnection of the battery pack contactor is a reversible control method, when the collision type of the vehicle is predicted to be the second type and the second control information is output, the vehicle can further perform a self-check before power-on after the vehicle collides. If the self-check is normal, power-on can be executed and the vehicle low-power operation mode can be executed. The low-power operation mode, for example, controls the maximum engine speed, the maximum vehicle driving speed, etc.

[0099] Figure 3is a block diagram of a vehicle battery pack power control device 30 according to an exemplary embodiment, the device 30 comprising:

[0100] A first acquisition module 31 is used to acquire first state information corresponding to the vehicle, second state information corresponding to the target obstacle, and environmental information;

[0101] A prediction module 32, configured to predict a collision type between the vehicle and the target obstacle based on the first state information, the second state information and the environment information;

[0102] A second acquisition module 33, used to acquire power control information corresponding to the collision type;

[0103] The first output module 34 is used to output the power control information, and the power control information is used to control the power of the battery pack.

[0104] Optionally, the prediction module 32 includes:

[0105] The relative speed determination submodule is used to predict whether the vehicle collides with the target obstacle based on the first state information, the second state information and the environmental information.

[0106] A risk type determination submodule is used to determine the risk type corresponding to the target obstacle based on the second state information when predicting that the vehicle collides with the target obstacle, and to predict the relative speed at the moment when the vehicle collides with the target obstacle based on the first state information, the second state information and the environmental information, wherein the risk type characterizes the collision hazard caused by the target obstacle to the vehicle.

[0107] The collision type prediction submodule is used to predict the collision type based on the relative speed and the risk type.

[0108] Optionally, the risk type includes high-risk collision objects and low-risk collision objects, and the collision type prediction submodule is specifically used to: when the relative speed meets a first speed threshold range and the risk type is a high-risk collision object, predict that the collision type of the vehicle is a first type; when the relative speed meets a second speed threshold range and the risk type is a high-risk collision object, predict that the collision type of the vehicle is a second type; wherein the relative speed corresponding to the first speed threshold range is greater than the relative speed corresponding to the second speed threshold range.

[0109] Optionally, the power control information includes first control information for controlling the fireworks switch to explode the battery pack output circuit or second control information for controlling the battery pack contactor to disconnect, and the second acquisition module 33 is specifically used to: when the collision type is the first type, use the first control information as the power control information; or when the collision type is the second type, use the second control information as the power control information.

[0110] Optionally, the collision type is the second type, and the second acquisition module 33 is further configured to use the second control information as the power control information. In this case, the device 30 further includes:

[0111] The third acquisition module is used to obtain the state of the battery pack contactor when a preset condition is met.

[0112] A changing module is used to change the power supply control information to the first control information when the state of the battery pack contactor is an abnormal connection state.

[0113] Optionally, the abnormal connection state is a sticky state.

[0114] Optionally, the device 30 further includes:

[0115] The second output module is used to output auxiliary braking information and braking prompt information when the collision type is the first type or the second type, and the auxiliary braking information is used to control the vehicle braking device to perform auxiliary braking.

[0116] Optionally, the device 30 further includes:

[0117] The third output module is used to output discharge information when the collision type is the first type or the second type, and the discharge information is used to control the vehicle to discharge.

[0118] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0119] Figure 4 FIG. 4 is a block diagram of an electronic device 400 according to an exemplary embodiment. Figure 4 As shown, the electronic device 400 may include: a processor 401 and a memory 402. The electronic device 400 may also include one or more of a multimedia component 403, an input / output (I / O) interface 404, and a communication component 405.

[0120] The processor 401 is used to control the overall operation of the electronic device 400 to complete all or part of the steps in the above-mentioned vehicle battery pack power control method. The memory 402 is used to store various types of data to support the operation of the electronic device 400. For example, these data may include instructions for any application or method used to operate on the electronic device 400, and application-related data, such as contact data, sent and received messages, pictures, audio, video, etc. The memory 402 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, referred to as SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, referred to as EEPROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory, referred to as EPROM), programmable read-only memory (Programmable Read-Only Memory, referred to as PROM), read-only memory (Read-Only Memory, referred to as ROM), magnetic memory, flash memory, magnetic disk or optical disk. The multimedia component 403 may include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the memory 402 or sent through the communication component 405. The audio component also includes at least one speaker for outputting audio signals. The I / O interface 404 provides an interface between the processor 401 and other interface modules, and the other interface modules may be keyboards, mice, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 405 is used for wired or wireless communication between the electronic device 400 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, is not limited here. Therefore, the corresponding communication component 405 may include: Wi-Fi module, Bluetooth module, NFC module, etc.

[0121] In an exemplary embodiment, the electronic device 400 can be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), controllers, microcontrollers, microprocessors or other electronic components to execute the above-mentioned vehicle battery pack power control method.

[0122] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, and when the program instructions are executed by a processor, the steps of the above-mentioned vehicle battery pack power control method are implemented. For example, the computer-readable storage medium can be the above-mentioned memory 402 including program instructions, and the above-mentioned program instructions can be executed by the processor 401 of the electronic device 400 to complete the above-mentioned vehicle battery pack power control method.

[0123] See also Figure 5 In another exemplary embodiment, a vehicle is provided, comprising at least the electronic device 50 described above, and at least a millimeter wave radar 51, a visual sensor 52, a high-precision map module 53, a video camera 54, a vehicle speed sensor 55, a vehicle braking device 56, a power battery pack 57, a pyrotechnic switch 58 and a battery pack contactor 59.

[0124] In another exemplary embodiment, a computer program product is also provided. The computer program product includes a computer program that can be executed by a programmable device. The computer program has a code portion for executing the above-mentioned vehicle battery pack power control method when executed by the programmable device.

[0125] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0126] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0127] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A vehicle battery pack power control method, characterized in that: include: Acquire first state information corresponding to the vehicle, second state information corresponding to the target obstacle, and environmental information; Predicting a collision type between the vehicle and the target obstacle based on the first state information, the second state information, and the environmental information; Acquire power control information corresponding to the collision type; Outputting the power control information, where the power control information is used to control the power of the battery pack; The predicting, based on the first state information, the second state information, and the environment information, the collision type between the vehicle and the target obstacle includes: Based on the first state information, the second state information and the environmental information, predict whether the vehicle collides with the target obstacle; In the case of predicting a collision between the vehicle and the target obstacle, determining a risk type corresponding to the target obstacle based on the second state information, and predicting a relative speed at a moment when the vehicle collides with the target obstacle based on the first state information, the second state information and the environmental information, the risk type characterizing the collision hazard caused by the target obstacle to the vehicle, wherein the relative speed at a moment when the vehicle collides with the target obstacle refers to the relative speed at an instant before the vehicle collides with the target obstacle, the risk types include high-risk collision objects and low-risk collision objects, and the shapes of the target obstacles include hard objects and soft objects. When the shape of the target obstacle is the hard object, the risk type corresponding to the target obstacle is the high-risk collision object, and when the shape of the target obstacle is the soft object, the risk type corresponding to the target obstacle is the low-risk collision object; When the relative speed satisfies a first speed threshold range and the risk type is the high-risk collision object, predicting that the collision type of the vehicle is a first type; When the relative speed satisfies a second speed threshold range and the risk type is the high-risk collision object, predicting that the collision type of the vehicle is a second type; The relative speed corresponding to the first speed threshold range is greater than the relative speed corresponding to the second speed threshold range.

2. The method according to claim 1, characterized in that The power control information includes first control information for controlling the pyrotechnic switch to explode the battery pack output circuit or second control information for controlling the battery pack contactor to disconnect, and the acquiring of the power control information corresponding to the collision type includes: When the collision type is the first type, using the first control information as the power control information; or When the collision type is the second type, the second control information is used as the power control information.

3. The method according to claim 2, characterized in that The collision type is the second type, and acquiring power control information corresponding to the collision type includes: using the second control information as the power control information; After outputting the power control information, the method further includes: When the preset conditions are met, the state of the battery pack contactor is obtained; When the state of the battery pack contactor is an abnormal connection state, the power supply control information is changed to the first control information.

4. The method according to claim 3, characterized in that The abnormal connection state is a sticky state.

5. The method according to claim 1 or 2, characterized in that: The method further comprises: When the collision type is the first type or the second type, auxiliary braking information and braking prompt information are output, and the auxiliary braking information is used to control the vehicle braking device to perform auxiliary braking.

6. The method according to claim 1 or 2, characterized in that: The method further comprises: When the collision type is the first type or the second type, discharge information is output, and the discharge information is used to control the vehicle to discharge.

7. A vehicle battery pack power control device, characterized in that: include: A first acquisition module, used to acquire first state information corresponding to the vehicle, second state information corresponding to the target obstacle, and environmental information; a prediction module, configured to predict a collision type between the vehicle and the target obstacle based on the first state information, the second state information, and the environmental information; A second acquisition module, used to acquire power control information corresponding to the collision type; A first output module, used for outputting the power control information, wherein the power control information is used for controlling the power of the battery pack; The prediction module comprises: a relative speed determination submodule, configured to predict whether the vehicle collides with the target obstacle based on the first state information, the second state information, and the environmental information; a risk type determination submodule, for determining, when predicting a collision between the vehicle and the target obstacle, a risk type corresponding to the target obstacle based on the second state information, and predicting a relative speed at a moment when the vehicle collides with the target obstacle based on the first state information, the second state information and the environmental information, the risk type characterizing the collision hazard caused by the target obstacle to the vehicle, wherein the relative speed at a moment when the vehicle collides with the target obstacle refers to the relative speed at an instant before the vehicle collides with the target obstacle, the risk types include high-risk collision objects and low-risk collision objects, the shapes of the target obstacles include hard objects and soft objects, when the shape of the target obstacle is the hard object, the risk type corresponding to the target obstacle is the high-risk collision object, and when the shape of the target obstacle is the soft object, the risk type corresponding to the target obstacle is the low-risk collision object; A collision type prediction submodule is used to predict that the collision type of the vehicle is a first type when the relative speed meets a first speed threshold range and the risk type is the high-risk collision object, and to predict that the collision type of the vehicle is a second type when the relative speed meets a second speed threshold range and the risk type is the high-risk collision object, wherein the relative speed corresponding to the first speed threshold range is greater than the relative speed corresponding to the second speed threshold range.

8. An electronic device, characterized in that: include: a memory having a computer program stored thereon; A processor, configured to execute the computer program in the memory to implement the steps of the method according to any one of claims 1 to 6.

9. A vehicle, characterized in that: The electronic device comprising the electronic device described in claim 8.

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