Vehicle wading protection method, device and system and vehicle

Abstract

The invention discloses a vehicle wading protection method, device and system and a vehicle, and belongs to the technical field of vehicles. The vehicle wading protection method can comprise the steps that signal connection between a vehicle-mounted controller in each vehicle-mounted function system and a master controller is constructed, and monitored vehicle wading data are obtained and comprise the wading depth, the wading time and the vehicle humidity; according to a wading protection strategy matched with the wading depth, the wading time and the vehicle humidity, a first control signal is generated, the first control signal is sent to a master controller, and the master controller controls one or more target vehicle-mounted controllers indicated by the first control signal to stop running; and in response to the fact that the vehicle environment meets the safe operation condition of the target vehicle-mounted controller, a second control signal is generated, and the master controller controls the target vehicle-mounted controller indicated by the second control signal to operate again. According to the method, the driving safety of the user under the vehicle wading condition can be ensured.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a vehicle wading protection method, device, system and vehicle. Background Art

[0002] With the frequent occurrence of extreme weather, vehicles will encounter more and more wading situations, for example, vehicles (vehicles driving outdoors or vehicles parked in underground parking lots, etc.) encounter water accumulation; vehicles driving in heavy rain need to pass through wading sections, etc. Since impurities in water are ionized in water, once a vehicle wades in water, water will enter the circuit of the on-board controller or vehicle functional system, which will reduce the resistance of the on-board functional system. When the power supply electromotive force input to the on-board functional system is constant, the current of the entire circuit of the on-board functional system increases, causing the on-board power supply to generate a lot of heat, thereby causing the on-board power supply and the on-board functional system to burn out.

[0003] At present, the main method for cutting off the power of a vehicle in water is to directly cut off the vehicle power supply. On the one hand, this method of directly cutting off the vehicle power supply will affect the normal driving of the vehicle; on the other hand, the cut-off circuit cannot be restored by control instructions, and manual control is required to re-establish the electrical connection between the vehicle power supply and various vehicle functional systems. The existing method of directly cutting off the vehicle power supply affects the driving of the vehicle and the driving safety of users in water-wading conditions. Summary of the invention

[0004] In view of this, the present invention provides a vehicle wading protection method, device, system and vehicle, which can enable the vehicle to drive normally in a wading environment and ensure the user's driving safety when the vehicle is wading.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] In a first aspect, the present invention provides a vehicle wading protection method, which establishes a signal connection between the vehicle controllers in each vehicle functional system and the master controller, and also includes:

[0007] Acquiring monitored vehicle wading data, wherein the vehicle wading data includes: wading depth, wading time and vehicle humidity;

[0008] generating a first control signal according to a wading protection strategy matched to the wading depth, the wading time and the vehicle humidity, and sending the first control signal to the master controller so that the master controller controls one or more target vehicle controllers indicated by the first control signal to stop running;

[0009] In response to the vehicle environment satisfying the safe operation condition of the target on-board controller, a second control signal is generated to enable the master controller to control the target on-board controller indicated by the second control signal to resume operation.

[0010] Optionally, the acquiring of the monitored vehicle wading data includes:

[0011] In the vehicle height direction, vehicle wading data corresponding to different heights are obtained.

[0012] Optionally, the vehicle wading protection method further includes: identifying a current driving mode of the vehicle, and assigning a corresponding wading level to each of the vehicle-mounted functional systems according to the wading depth, the wading time and the vehicle humidity;

[0013] The current driving mode and the wading level are sent to the master controller, so that the master controller controls one or more target vehicle controllers indicated by the first control signal to stop running in combination with the current driving mode and the wading level.

[0014] Optionally, the vehicle is pre-configured with a plurality of driving modes, wherein each of the driving modes is configured with one or more vehicle-mounted functional systems, and the current driving mode is one selected from the plurality of driving modes.

[0015] Optionally, the master controller controls one or more target vehicle controllers indicated by the first control signal to stop running in combination with the vehicle driving mode and the wading level, including:

[0016] When the vehicle function system configured in the current driving mode is consistent with one or more target vehicle controllers indicated by the first control signal, the master controller directly controls the one or more target vehicle controllers indicated by the first control signal to stop running;

[0017] In the case where the target vehicle controller indicated by the first control signal does not belong to the vehicle function system configured in the current driving mode,

[0018] If the wading level of the target vehicle-mounted controller exceeds a preset level threshold, the master controller controls the target vehicle-mounted controller to stop running;

[0019] If the wading level of the target vehicle-mounted controller does not exceed the preset level threshold, the target vehicle-mounted controller is kept operating normally.

[0020] Optionally, the multiple driving modes include at least two of the following driving modes:

[0021] A normal driving mode indicating that all vehicle function systems are normal, a low load driving mode indicating that vehicle function systems including low loads are turned off, a partial shutdown driving mode indicating that some non-essential vehicle function systems are turned off, and a full shutdown driving mode indicating that all non-essential vehicle function systems are completely turned off.

[0022] Optionally, the water protection strategy includes:

[0023] A preset time threshold is configured for each installation height corresponding to each of the vehicle-mounted controllers;

[0024] For each of the installation heights, when the wading depth exceeds the installation height and the wading time is less than a preset time threshold corresponding to the installation height, turning off the controller of the unused vehicle function system at the installation height;

[0025] and / or,

[0026] For each of the installation heights, when the wading depth exceeds the installation height and the wading time is greater than or equal to the preset time threshold corresponding to the installation height and the vehicle humidity is less than 100%, the controllers of some non-essential vehicle function systems at the installation height are turned off;

[0027] and / or,

[0028] For each of the installation heights, when the wading depth exceeds the installation height and the wading time is greater than or equal to the preset time threshold corresponding to the installation height and the vehicle humidity is equal to 100%, the controllers of all non-essential vehicle functional systems at the installation height are turned off.

[0029] Optionally, the master controller controls one or more target vehicle-mounted controllers indicated by the first control signal to stop running, comprising: the master controller sends a first control instruction indicating power off to a switch circuit of the target vehicle-mounted controller to cut off the switch circuit;

[0030] The master controller controls the target vehicle-mounted controller indicated by the second control signal to resume operation, including: the master controller sends a second control instruction indicating re-powering to a switch circuit of the target vehicle-mounted controller to reclose the switch circuit.

[0031] In a second aspect, an embodiment of the present invention provides a vehicle wading protection device, which implements vehicle wading protection based on building a signal connection between an onboard controller and a master controller in each onboard functional system, including: an acquisition unit and a protection unit, wherein:

[0032] The acquisition unit is used to acquire the monitored vehicle wading data, wherein the vehicle wading data includes: wading depth, wading time and vehicle humidity;

[0033] The protection unit is used to generate a first control signal according to a wading protection strategy that matches the wading depth, the wading time and the vehicle humidity, and send the first control signal to the main controller, so that the main controller controls one or more target vehicle controllers indicated by the first control signal to stop running; in response to the vehicle environment meeting the safe operation conditions of the target vehicle controller, generate a second control signal, so that the main controller controls the target vehicle controller indicated by the second control signal to resume operation.

[0034] In a third aspect, an embodiment of the present invention provides a vehicle wading protection system, comprising: a sensor, a master controller, and the vehicle wading protection device provided in the embodiment of the second aspect, wherein:

[0035] The sensor is used to monitor vehicle wading data, wherein the vehicle wading data includes: wading depth, wading time and vehicle humidity;

[0036] The main controller is used to control one or more target vehicle-mounted controllers indicated by the first control signal to stop running after receiving the first control signal sent by the vehicle water wading protection device; and to control the target vehicle-mounted controllers indicated by the second control signal to restart running after receiving the second control signal sent by the vehicle water wading protection device.

[0037] In a fourth aspect, an embodiment of the present invention provides an electronic device, including:

[0038] one or more processors;

[0039] a storage device for storing one or more programs,

[0040] When the one or more programs are executed by the one or more processors, the one or more processors implement the vehicle wading protection method provided in the above-mentioned first aspect embodiment.

[0041] In a fifth aspect, an embodiment of the present invention provides a computer-readable medium having a computer program for a vehicle wading protection method stored thereon.

[0042] When the computer program is executed by the on-board processor, the vehicle wading protection method provided in the first aspect embodiment described above is implemented.

[0043] In a sixth aspect, an embodiment of the present invention provides a vehicle, which implements the vehicle wading protection method provided by the embodiment of the first aspect above, or includes the vehicle wading protection device provided by the embodiment of the second aspect above, or includes the vehicle wading protection system provided by the embodiment of the third aspect above.

[0044] The technical solution of the above invention has the following advantages or beneficial effects:

[0045] The technical solution provided by the embodiment of the present invention, through a water wading protection strategy that matches the wading depth, wading time and vehicle humidity, enables the main controller to control the on-board controllers in each on-board functional system to which it is electrically connected to stop running. Each on-board functional system can be independently controlled by the main controller, and the on-board functional systems that do not affect the vehicle's driving can be controlled to be shut down, thereby preventing the on-board functional systems from being damaged due to water wading, and ensuring the driving safety of users when the vehicle is wading.

[0046] In addition, the technical solution can also meet the safe operating conditions of the target vehicle-mounted controller in the vehicle environment, so that the main controller can control the target vehicle-mounted controller to resume operation without manual adjustment by the user, so that the on-board functional system of the wading vehicle can be automatically restored.

[0047] Compared with directly cutting off the vehicle power supply, the technical solution provided by the embodiment of the present invention independently controls each vehicle-mounted functional system, so that the vehicle-mounted functional system that is invaded by water can be shut down in time, while the vehicle-mounted functional system that is not invaded by water can still operate normally, which will not affect the vehicle power supply, thereby ensuring that each vehicle-mounted functional system of the vehicle can operate normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of the structure of a vehicle part involved in the technical solution provided by an embodiment of the present invention;

[0049] Figure 2 This is a schematic diagram of the main process of a vehicle wading protection method provided according to an embodiment of the present invention;

[0050] Figure 3 It is a schematic diagram of the main process of another vehicle wading protection method provided according to an embodiment of the present invention;

[0051] Figure 4A is a schematic diagram of the connection relationship between the structures inside the vehicle according to the vehicle wading protection configuration provided by an embodiment of the present invention;

[0052] Figure 4B is a schematic diagram of a switch circuit provided according to an embodiment of the present invention;

[0053] Figure 5 is a partial structural schematic diagram of a vehicle wading protection device provided according to an embodiment of the present invention;

[0054] Figure 6 is a partial structural schematic diagram of a vehicle wading protection system provided according to an embodiment of the present invention;

[0055] Figure 7 is an exemplary system architecture diagram to which embodiments of the present invention may be applied;

[0056] Figure 8 It is a structural diagram of a computer system suitable for implementing the vehicle wading protection according to an embodiment of the present invention. DETAILED DESCRIPTION

[0057] Figure 1 The partial cross-sectional structure of the vehicle is shown by way of example, including a vehicle chassis 11, a center console 12, a portion of a roof 13, a front windshield 14, and a front cabin 15 of the vehicle. The present invention is described in the following manner by taking the arrangement of hardware such as control chips, control circuits, switches and other electronic components carried by various vehicle-mounted functional systems in the center console 12 as an example. In addition, the hardware carried by the vehicle-mounted functional system may have an independent packaging shell. It is worth noting that the arrangement of the electronic components carried by the vehicle-mounted functional system in the center console 12 is only an example, and it may also be arranged at other locations in the vehicle. Regardless of where the electronic components carried by the vehicle-mounted functional system are arranged, the vehicle wading protection may be achieved by the technical solution provided in the embodiment of the present invention.

[0058] Generally speaking, in order to reasonably use the vehicle space, the hardware of different vehicle functional systems is generally arranged at different heights. Figure 1 As shown, the hardware 121 of the vehicle wireless communication system and the hardware 122 of the vehicle voice system are located at a height H1, the hardware 123 of the vehicle entertainment system is located at a height H2, part of the hardware 124 of the vehicle air conditioning system is located at a height H3, the hardware 125 of the vehicle power system is located at a height H4, and the hardware 126 of the door control system is located at a height H5. For hardware located at different heights, the wading conditions will be completely different. For example, when the depth of the accumulated water reaches the height H1 but does not reach the height H2, the hardware 121 of the vehicle wireless communication system and the hardware 122 of the vehicle voice system located at the height H1 will have a short circuit risk. If the circuit between the hardware 121 of the vehicle wireless communication system and the hardware 122 of the vehicle voice system and the power supply cannot be cut off in time, the short circuit risk will affect the power supply. Once the power supply is affected, it will not only affect the normal driving of the entire vehicle, but also bring relatively large maintenance costs.

[0059] At present, in order to deal with the above-mentioned short circuit risk, the power supply is generally cut off directly. This method of directly cutting off the power supply will make the power supply unable to power the hardware of other functional systems, and the power supply needs to be restored manually. If the user is driving the vehicle, directly cutting off the power supply will affect the user's driving safety when the vehicle is wading.

[0060] In addition, although a relatively strong waterproof shell can be set for the vehicle controller, it is difficult to waterproof the entire circuit route in all directions due to the complex circuit layout of the vehicle functional system. Therefore, the current waterproofing of the vehicle controller can only prevent the vehicle controller from being immersed in water, and the vehicle still needs to be powered off by directly cutting off the power supply.

[0061] In order to solve the above problems, embodiments of the present invention provide a vehicle wading protection method, device and system.

[0062] It is worth noting that the height of the hardware involved in the embodiments of the present invention can be based on the ground or the vehicle chassis. That is, the height of the hardware can be the height of the hardware from the ground or the height of the hardware from the vehicle chassis. Figure 1 It is only shown by way of example that each on-board controller is located above the vehicle chassis; the each on-board controller may also be arranged in the lower area of ​​the vehicle chassis.

[0063] The following is a description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, including various details of the embodiments of the present invention to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present invention. Similarly, for clarity and conciseness, the description of well-known functions and structures is omitted in the following description.

[0064] It should be pointed out that the embodiments of the present invention and the technical features therein may be combined with each other without conflict.

[0065] Specifically, Figure 2 The main flow chart of the vehicle wading protection method provided by the embodiment of the present invention is shown. Figure 2 As shown, the vehicle wading protection method is implemented based on the signal connection between the vehicle controller and the master controller in each vehicle functional system. The vehicle wading protection method may include the following steps:

[0066] Step S201: Acquire data: acquire monitored vehicle wading data, wherein the vehicle wading data includes: wading depth, wading time and vehicle humidity.

[0067] The specific scheme of this step is to obtain the vehicle wading data corresponding to different heights in the vehicle height direction. The different heights generally refer to the heights of the hardware of the vehicle function system. For example, Figure 1 Taking the structure shown as an example, the different heights are heights H1, H2, H3 and H4.

[0068] Among them, the wading depth generally refers to the height of the water surface in the water area where the vehicle is located above the reference, with the ground or the chassis of the vehicle as the reference. Exemplarily, when the ground is used as the reference, the wading depth is the distance from the water surface in the water area where the vehicle is located to the ground. When the vehicle chassis is used as the reference, the wading depth is the height of the water surface in the water area where the vehicle is located above the vehicle chassis. Specifically, for different heights in the accumulated water, the wading depth can be directly expressed by the height of the water surface in the water area where the vehicle is located above the reference; for different heights above the accumulated water, the wading depth is 0.

[0069] Wading time generally refers to the total time taken from the vehicle starting to wade to the water entering the hardware such as ECU at a certain height. For example, in extreme weather, as the amount of water in the waterlogged area where the vehicle is located continues to rise, the wading depth of the vehicle rises from height H1 to height H4, and the rise from height H1 to height H4 is gradual. When the wading depth is height H1, the wading time corresponding to heights H2, H3 and H4 is 0, and the time taken for the water to reach H1 is the wading time corresponding to the height H1. After the wading depth rises to height H2, the wading time corresponding to heights H3 and H4 is 0, and the time taken for the water to reach H1 is the wading time corresponding to the height H1, and the time taken for the water to reach H2 is the wading time corresponding to the height H2. Generally speaking, when the water gradually rises, the higher the height, the shorter the corresponding wading time.

[0070] The vehicle humidity is also based on the humidity at different altitudes. The vehicle humidity can be detected by setting a humidity sensor at each hardware position, or it can be calculated through the humidity sensor in the cabin combined with the wading depth and wading time. The specific calculation method can be constructed through humidity sensor test data, wading depth test data and wading time test data. The specific calculation process construction method is not limited in this scheme.

[0071] Step S202: Control the vehicle-mounted controller to stop running based on the first control signal: Generate a first control signal according to a wading protection strategy that matches the wading depth, wading time and vehicle humidity, and send the first control signal to the main controller, so that the main controller controls one or more target vehicle-mounted controllers indicated by the first control signal to stop running.

[0072] For example, Figure 1The hardware 121 of the vehicle-mounted wireless communication system shown includes a communication controller, the hardware 122 of the vehicle-mounted voice system includes a voice controller, the hardware 123 of the vehicle-mounted entertainment system includes an entertainment controller, the partial hardware 124 of the vehicle-mounted air-conditioning system includes an air-conditioning controller, the hardware 125 of the vehicle-mounted power system includes a power controller, and the hardware 126 of the door control system includes a door controller, all of which are vehicle-mounted controllers. The master controller controls the power supply of the communication controller, the voice controller, the entertainment controller, the air-conditioning controller, the power controller and the door controller respectively. The master controller can be the master controller already in the vehicle, or it can be a master controller newly configured for the vehicle and specifically used to control each vehicle-mounted controller. By controlling each vehicle-mounted controller separately through the master controller, there is no need to cut off the power supply of each function.

[0073] For example, when the first control signal instructs the communication controller and the voice controller, the main controller stops the operation of the communication controller and the voice controller.

[0074] By controlling the target vehicle controller to stop running, the circuit where the target vehicle controller is located is no longer powered, thereby preventing the circuit where the target vehicle controller is located from short-circuiting due to wading, thereby ensuring that the power supply provides normal power to the circuits of other vehicle controllers.

[0075] Step S203: Control the on-board controller to restart based on the second control signal: In response to the vehicle environment satisfying the safe operation conditions of the target on-board controller, generate a second control signal to enable the main controller to control the target on-board controller indicated by the second control signal to restart.

[0076] The master controller can be used to stop and restart the target vehicle controller without manual operation.

[0077] The technical solution provided by the embodiment of the present invention, through a water wading protection strategy that matches the wading depth, wading time and vehicle humidity, enables the main controller to control the on-board controllers in each on-board functional system to which it is electrically connected to stop running. Each on-board functional system can be independently controlled by the main controller, and the on-board functional systems that do not affect the vehicle's driving can be controlled to be shut down, thereby preventing the on-board functional systems from being damaged due to water wading, and ensuring the driving safety of users when the vehicle is wading.

[0078] In addition, the technical solution can also meet the safe operating conditions of the target vehicle-mounted controller in the vehicle environment, so that the main controller can control the target vehicle-mounted controller to resume operation without manual adjustment by the user, so that the on-board functional system of the wading vehicle can be automatically restored.

[0079] Compared with directly cutting off the vehicle power supply, the technical solution provided by the embodiment of the present invention independently controls each vehicle-mounted functional system, so that the vehicle-mounted functional system that is invaded by water can be shut down in time, while the vehicle-mounted functional system that is not invaded by water can still operate normally, which will not affect the vehicle power supply, thereby ensuring that each vehicle-mounted functional system of the vehicle can operate normally.

[0080] It is worth noting that the technical solution provided by the embodiment of the present invention can be aimed at new energy vehicles or fuel vehicles, and is not limited to vehicle types.

[0081] Furthermore, the above-mentioned vehicle wading protection method may also include: identifying the current driving mode of the vehicle, and assigning corresponding wading levels to each vehicle-mounted functional system according to the wading depth, wading time and vehicle humidity; sending the current driving mode and wading level to the main controller, so that the main controller combines the current driving mode and wading level to control one or more target vehicle-mounted controllers indicated by the first control signal to stop running.

[0082] The driving mode may be pre-configured for the vehicle, and the driving mode is used to indicate the vehicle-mounted functional system that needs to be controlled during the vehicle wading process. The vehicle is generally pre-configured with multiple driving modes, wherein each driving mode is configured with one or more vehicle-mounted functional systems, and the current driving mode is one selected from the multiple driving modes. Different driving modes may target different vehicle-mounted functional systems, and in addition, the vehicle-mounted functional systems targeted by different driving modes may overlap.

[0083] The multiple driving modes include at least two of the following driving modes: a normal driving mode indicating that all vehicle functional systems are normal, a low-load driving mode indicating that vehicle functional systems including low loads are turned off, a partial shutdown driving mode indicating that some non-essential vehicle functional systems are turned off, and a full shutdown driving mode indicating that all non-essential vehicle functional systems are turned off.

[0084] In addition, the judgment standard of the water wading level is also pre-configured for the vehicle, and different judgment standards of the water wading level can be configured for different vehicles according to the waterproof conditions of the vehicle.

[0085] In different scenarios, the master controller controls one or more target vehicle controllers indicated by the first control signal to stop running in different specific implementations in combination with the current driving mode and wading level.

[0086] Specifically, when the vehicle function system configured in the current driving mode is consistent with one or more target vehicle controllers indicated by the first control signal, the master controller directly controls the one or more target vehicle controllers indicated by the first control signal to stop running. The vehicle function system configured in the current driving mode is consistent with one or more target vehicle controllers indicated by the first control signal means that the one or more target vehicle controllers indicated by the first control signal belong to the vehicle function system configured in the current driving mode.

[0087] When the target vehicle controller indicated by the first control signal does not belong to the vehicle function system configured in the current driving mode, if the wading level of the target vehicle controller exceeds a preset level threshold, the main controller controls the target vehicle controller to stop running.

[0088] In the case that the target vehicle-mounted controller indicated by the first control signal does not belong to the vehicle-mounted functional system configured in the current driving mode, if the wading level of the target vehicle-mounted controller does not exceed the preset level threshold, the target vehicle-mounted controller is maintained to operate normally.

[0089] The above-mentioned level thresholds may also be pre-configured for the vehicle according to the waterproof condition of the vehicle.

[0090] The driving mode can meet user customized needs. By coordinating the driving mode, water wading level and water wading protection strategy, that is, when the water wading level is lower than the level threshold (that is, although the vehicle wades through water, there is no water wading safety hazard), the user customized needs can be met. When the water wading level is higher than the level threshold (that is, there is a water wading safety hazard when the vehicle wades through water), the first control signal is used for control, which can ensure the vehicle's wading safety and improve the user experience.

[0091] Furthermore, the above-mentioned wading protection strategies may include multiple ones. The multiple wading protection strategies are implemented based on preset time thresholds configured for the installation heights corresponding to each vehicle-mounted controller. Exemplarily, the preset time thresholds corresponding to the different installation heights can be set within 1s to 3s. For example, when the installation height is lower than the chassis height, the preset time threshold can be set to 1s, and when the installation height is higher than the instrument panel height, the preset time threshold can be set to 3s.

[0092] Specifically, based on the preset time thresholds configured for the installation heights corresponding to the various vehicle-mounted controllers, the first wading protection strategy is: for each installation height, when the wading depth exceeds the installation height and the wading time is less than the preset time threshold corresponding to the installation height, the controllers of the vehicle-mounted functional systems that are not in use at the installation height are shut down. Figure 1Taking the given structure as an example, the wading depth exceeds H1 but does not exceed H2, wherein the communication controller, voice controller and air conditioning controller are all in a non-working state, then the first wading protection strategy will shut down the communication controller and the voice controller or stop the operation of the communication controller and the voice controller.

[0093] Based on the preset time thresholds configured for the installation heights corresponding to each vehicle controller, the second water wading protection strategy is: for each installation height, when the wading depth exceeds the installation height and the wading time is greater than or equal to the preset time threshold corresponding to the installation height and the vehicle humidity is less than 100%, the controllers of some non-essential vehicle function systems at the installation height are shut down.

[0094] Based on the preset time thresholds configured for the installation heights corresponding to each vehicle controller, the third wading protection strategy is: for each installation height, when the wading depth exceeds the vehicle chassis height and the wading time is greater than or equal to the preset time threshold corresponding to the installation height and the vehicle humidity is equal to 100%, the controllers of all non-essential vehicle function systems at the installation height are shut down.

[0095] Through the above-mentioned wading protection strategy, differentiated control can be performed according to different wading depths, wading times and humidity, so as to improve the reliability of vehicle wading safety control.

[0096] Furthermore, the above-mentioned vehicle wading protection method may further include: a switch circuit is provided on the circuit of each vehicle-mounted functional system. Based on this, the specific implementation of the master controller controlling one or more target vehicle-mounted controllers indicated by the first control signal to stop running may include: the master controller sends a first control instruction indicating power off to the switch circuit of the target vehicle-mounted controller to cut off the switch circuit; the specific implementation of the master controller controlling the target vehicle-mounted controller indicated by the second control signal to resume running may include: the master controller sends a second control instruction indicating power re-supply to the switch circuit of the target vehicle-mounted controller to re-close the switch circuit.

[0097] By controlling the connection or disconnection of the circuit where the vehicle-mounted controller is located through the switching circuit, the main controller can control the switching circuit to realize the circuit that controls the vehicle-mounted function, so that the switching circuit can receive the control signal or control instruction of the main controller to automatically control the circuit of the vehicle-mounted functional system without manual operation, thereby improving the user experience.

[0098] Below Figure 1 Taking the partial structure of the vehicle shown in the figure as an example, a vehicle wading protection method implemented by combining the vehicle's driving mode, wading level and wading protection strategy is described in detail. Figure 3 As shown, the vehicle wading protection method may include the following steps:

[0099] Step S301: System construction: constructing a signal connection between the vehicle controller in each vehicle functional system and the master controller, and setting a switch circuit on the circuit of each vehicle functional system.

[0100] For example, for Figure 1 The vehicle controller shown is a communication controller 1211 included in the hardware 121 of the vehicle wireless communication system, a voice controller 1221 included in the hardware 122 of the vehicle voice system, an entertainment controller 1231 included in the hardware 123 of the vehicle entertainment system, an air conditioning controller 1241 included in the partial hardware 124 of the vehicle air conditioning system, a power controller 1251 included in the hardware 125 of the vehicle power system, and a door controller 1261 included in the hardware 126 of the door control system. Figure 4A As shown, in the vehicle production process, this step is to configure the main controller 16, and respectively configure the first switch circuit 1212 for the communication controller 1211, the second switch circuit 1222 for the voice controller 1221, the third switch circuit 1232 for the entertainment controller 1231, the fourth switch circuit 1242 for the air conditioning controller 1241, the fifth switch circuit 1252 for the power controller 1251 and the sixth switch circuit 1262 for the door controller 1261, and establish a communication controller 1211 and a vehicle through the first switch circuit 1212. The power supply 17 is connected, the voice controller 1221 is connected to the power supply 17 through the second switch circuit 1222, the entertainment controller 1231 is connected to the power supply 17 through the third switch circuit 1232, the air conditioning controller 1241 is connected to the power supply 17 through the fourth switch circuit 1242, the power controller 1251 is connected to the power supply 17 through the fifth switch circuit 1252, and the door controller 1261 is connected to the power supply 17 through the sixth switch circuit 1262. It is worth noting that the master controller 16 and each switch circuit generally have one-way communication, that is, the master controller 16 sends signals to each switch circuit to ensure the safety of the master controller 16.

[0101] Among them, the structure of the switch circuit can be as follows Figure 4B As shown, the main controller 16 sends a first control instruction (such as a high-level signal) to control the transistor Q1 to be turned on, and the 1st and 2nd ends of the relay S are connected, thereby disconnecting the connection between the in-vehicle battery 17 and the on-board controller connected to the switch circuit; the main controller 16 sends a second control instruction (such as a low-level signal) to control the transistor Q1 to be turned off, and the 1st and 3rd ends of the relay are connected, thereby connecting the in-vehicle battery 12V and the on-board controller connected to the switch circuit.

[0102] Step S302: Acquire vehicle wading data: acquire vehicle wading data corresponding to different heights in the vehicle height direction.

[0103] In addition to obtaining the vehicle wading data at different heights, this step can also directly obtain the vehicle wading data for the entire vehicle. The wading data may include: wading depth, wading time, and humidity. For different heights in the accumulated water, the wading depth can be directly represented by the height of the water surface in the accumulated water area where the vehicle is located above the reference (ground or vehicle chassis); for different heights above the accumulated water, the wading depth is 0.

[0104] Step S303: Identify the driving mode and determine the wading level: Identify the current driving mode of the vehicle and assign corresponding wading levels to each vehicle functional system according to the wading depth, wading time and vehicle humidity.

[0105] The vehicle can be configured with multiple driving modes: a normal driving mode indicating that all vehicle function systems are normal, a low-load driving mode indicating that vehicle function systems including low loads are turned off, a partial shutdown driving mode indicating that some non-essential vehicle function systems are turned off, and a full shutdown driving mode indicating that all non-essential vehicle function systems are turned off. Among them, some non-essential vehicle function systems in the partial shutdown driving mode can be configured by the user or randomly selected by the system.

[0106] Step S304: Generate a first control signal: Generate a first control signal according to a wading protection strategy that matches the wading depth, wading time and vehicle humidity.

[0107] Exemplarily, the wading protection strategy includes: for each installation height, when the wading depth exceeds the installation height and the wading time is less than the preset time threshold corresponding to the installation height, the controllers of the unused vehicle function systems at the installation height are turned off; when the wading depth exceeds the installation height and the wading time is greater than or equal to the preset time threshold corresponding to the installation height and the vehicle humidity is less than 100%, the controllers of some non-essential vehicle function systems at the installation height are turned off; when the wading depth exceeds the installation height and the wading time is greater than or equal to the preset time threshold corresponding to the installation height and the vehicle humidity is equal to 100%, the controllers of all non-essential vehicle function systems at the installation height are turned off. It is worth noting that the wading protection strategy is only an example, and the wading protection strategy can be adjusted according to the waterproof condition of the vehicle itself, for example, only the unused controllers located in the accumulated water or the controllers of some non-essential vehicle function systems located in the accumulated water or the controllers of some non-essential vehicle function systems located in the accumulated water are turned off.

[0108] Step S305: Send information to the main controller: send the current driving mode, water wading level and the first control signal to the main controller; when the vehicle function system configured in the current driving mode is consistent with one or more target vehicle controllers indicated by the first control signal K1, execute step S306; when the target vehicle controller indicated by the first control signal does not belong to the vehicle function system configured in the current driving mode K2, if the water wading level of the target vehicle controller exceeds the preset level threshold Y, execute step S307; if the water wading level of the target vehicle controller does not exceed the preset level threshold N, execute step S309.

[0109] For example, the vehicle function system configured for the current driving mode is Figure 4A The hardware 121 of the in-vehicle wireless communication system, the hardware 122 of the in-vehicle voice system and the hardware 123 of the in-vehicle entertainment system are shown, and the target in-vehicle controllers indicated by the first control signal are the communication controller 1211, the voice controller 1221 and the entertainment controller 1231, wherein the communication controller 1211 belongs to the hardware 121 of the in-vehicle wireless communication system, the voice controller 1221 belongs to the hardware 122 of the in-vehicle voice system and the entertainment controller 1231 belongs to the hardware 123 of the in-vehicle entertainment system, that is, the in-vehicle functional system configured in the current driving mode is consistent with one or more target in-vehicle controllers indicated by the first control signal, then through subsequent steps S306 and S308, the first switch circuit 1212 corresponding to the communication controller 1211, the second switch circuit 1222 corresponding to the voice controller 1221 and the third switch circuit 1232 corresponding to the entertainment controller 1231 are cut off.

[0110] If the target vehicle controller indicated by the first control signal also includes the air-conditioning controller 1241, and the vehicle-mounted air-conditioning system 124 of the air-conditioning controller 1241 does not belong to the vehicle-mounted functional system configured for the current driving mode, then when the water wading level of the air-conditioning controller 1241 is lower than the preset level threshold, the air-conditioning controller 1241 is kept in normal operation; when the water wading level of the air-conditioning controller 1241 is higher than the preset level threshold, the fourth switch circuit 1242 corresponding to the air-conditioning controller 1241 is turned off.

[0111] Step S306: the master controller sends a first control instruction to a switch circuit corresponding to one or more target vehicle controllers indicated by the first control signal: the master controller directly sends a first control instruction indicating power off to a switch circuit of one or more target vehicle controllers indicated by the first control signal, and executes step S308;

[0112] Step S307: the main controller sends a first control instruction for instructing power off to a switch circuit of a target vehicle controller indicated by the first control signal and whose wading level exceeds a preset level threshold;

[0113] Step S308: Cut off the corresponding switch circuit, step S310.

[0114] Step S309: Keep the target vehicle controller running normally.

[0115] Step S310: Reclose the switch circuit: In response to the vehicle environment satisfying the safe operating conditions of the target vehicle controller, generate a second control signal to enable the main controller to generate a second control instruction instructing re-powering; the main controller sends the second control instruction instructing re-powering to the switch circuit corresponding to the target vehicle controller; reclose the switch circuit according to the second control instruction.

[0116] Furthermore, an embodiment of the present invention provides a vehicle wading protection device. The vehicle wading protection device 500 implements vehicle wading protection based on signal connections between vehicle controllers in various vehicle functional systems and a master controller. Figure 5 As shown, the vehicle wading protection device 500 may include: an acquisition unit 501 and a protection unit 502, wherein:

[0117] The acquisition unit 501 is used to acquire the monitored vehicle wading data, wherein the vehicle wading data includes: wading depth, wading time and vehicle humidity;

[0118] The protection unit 502 is used to generate a first control signal according to a wading protection strategy that matches the wading depth, wading time and vehicle humidity, and send the first control signal to the main controller, so that the main controller controls one or more target vehicle controllers indicated by the first control signal to stop running; in response to the vehicle environment meeting the safe operation conditions of the target vehicle controller, generate a second control signal, so that the main controller controls the target vehicle controller indicated by the second control signal to resume operation.

[0119] In the embodiment of the present invention, the acquisition unit 501 is further used to acquire vehicle wading data corresponding to different heights in the vehicle height direction.

[0120] In an embodiment of the present invention, the protection unit 502 is further used to identify the current driving mode of the vehicle, and assign corresponding wading levels to each vehicle-mounted functional system according to the wading depth, wading time and vehicle humidity; the current driving mode and wading level are sent to the main controller, so that the main controller controls one or more target vehicle-mounted controllers indicated by the first control signal to stop running in combination with the current driving mode and wading level.

[0121] The vehicle is pre-configured with a plurality of driving modes, wherein each driving mode is configured with one or more vehicle-mounted functional systems, and the current driving mode is one selected from the plurality of driving modes.

[0122] Among them, the multiple driving modes include at least two of the following driving modes: a normal driving mode indicating that all vehicle-mounted functional systems are normal, a low-load driving mode indicating that vehicle-mounted functional systems including low loads are turned off, a partial shutdown driving mode indicating that some non-essential vehicle-mounted functional systems are turned off, and a full shutdown driving mode indicating that all non-essential vehicle-mounted functional systems are completely turned off.

[0123] In an embodiment of the present invention, the wading protection strategy configured by the protection unit 502 includes: configuring a preset time threshold for the installation height corresponding to each vehicle-mounted controller; for each installation height, when the wading depth exceeds the installation height and the wading time is less than the preset time threshold corresponding to the installation height, shutting down the controller of the vehicle-mounted functional system that is not in use at the installation height.

[0124] In an embodiment of the present invention, the wading protection strategy configured by the protection unit 502 includes: for each installation height, when the wading depth exceeds the installation height and the wading time is greater than or equal to the preset time threshold corresponding to the installation height and the vehicle humidity is less than 100%, the controllers of some non-essential vehicle functional systems at the installation height are shut down.

[0125] In an embodiment of the present invention, the water wading protection strategy configured by the protection unit 502 includes: for each installation height, when the wading depth exceeds the installation height and the wading time is greater than or equal to the preset time threshold corresponding to the installation height and the vehicle humidity is equal to 100%, the controllers of all non-essential vehicle functional systems at the installation height are turned off.

[0126] Furthermore, an embodiment of the present invention provides a vehicle wading protection system. Figure 6 As shown, the vehicle wading protection system 600 may include: a sensor 601, a master controller 602 and the vehicle wading protection device 600 provided in the above embodiment, wherein:

[0127] Sensor 601, used to monitor vehicle wading data, wherein the vehicle wading data includes: wading depth, wading time and vehicle humidity;

[0128] The main controller 602 is used to control one or more target vehicle controllers indicated by the first control signal to stop running after receiving the first control signal sent by the vehicle water wading protection device 500; and to control the target vehicle controllers indicated by the second control signal to restart running after receiving the second control signal sent by the vehicle water wading protection device.

[0129] Furthermore, if Figure 6 As shown, the vehicle wading protection system 600 may further include: a switch circuit 603 arranged on the circuits of each vehicle-mounted functional system.

[0130] The main controller 602 is further used to send a first control instruction indicating power off to the switch circuit 603 corresponding to the target vehicle controller to cut off the switch circuit 603; and send a second control instruction indicating power re-supply to the switch circuit 603 corresponding to the target vehicle controller to re-close the switch circuit.

[0131] In an embodiment of the present invention, the main controller 602 is further used to directly control one or more target vehicle-mounted controllers indicated by the first control signal to stop running when the vehicle-mounted function system configured in the current driving mode is consistent with one or more target vehicle-mounted controllers indicated by the first control signal; when the target vehicle-mounted controller indicated by the first control signal does not belong to the vehicle-mounted function system configured in the current driving mode, if the water wading level of the target vehicle-mounted controller exceeds a preset level threshold, the main controller controls the target vehicle-mounted controller to stop running; if the water wading level of the target vehicle-mounted controller does not exceed the preset level threshold, the target vehicle-mounted controller is kept operating normally.

[0132] The following describes a technical scenario to which the technical solution provided by the embodiment of the present invention is applicable based on the system architecture on which the technical solution provided by the embodiment of the present invention relies.

[0133] Figure 7 An exemplary system architecture 700 is shown, to which a vehicle water wading protection method or a vehicle water wading protection device according to an embodiment of the present invention can be applied.

[0134] like Figure 7 As shown, the vehicle system architecture 700 may include various systems, such as a driving control system 701, a power system 702, a sensor system 703, a control system 704, an auxiliary lane change system 705, one or more peripheral devices 706, a power supply 707, a computer system 708, and a user interface 709, wherein the vehicle wading protection method provided in the embodiment of the present invention can be implemented by interacting with each of the above systems. Optionally, the vehicle system architecture 700 may include more or fewer systems, and each system may include multiple elements. In addition, each system and element of the vehicle system architecture 700 may be interconnected by wire or wirelessly.

[0135] The vehicle system architecture 700 includes a driving control system 701, which can be in a full or partial automatic driving mode. For example, the driving control system 701 can automatically control the vehicle to change lanes according to a lane change signal or lane change instruction provided by the lane change assistance system 705 without human interaction.

[0136] The power system 702 may include components that provide power movement for the vehicle. For example, the power system 702 may include an engine, an energy source, a transmission, wheels, tires, etc. Among them, the engine may be an internal combustion engine, an electric motor, an air compression engine, or a combination of other types of engines, such as a hybrid engine consisting of a gas-oil engine and an electric motor, and a hybrid engine consisting of an internal combustion engine and an air compression engine. The engine converts the energy source into mechanical energy and provides it to the transmission. Examples of energy sources may include gasoline, diesel, other petroleum-based fuels, propane, other compressed gas-based fuels, ethanol, solar panels, batteries, and other sources of electricity. The energy source may also provide energy for other systems of the vehicle. In addition, the transmission may include a gearbox, a differential, a drive shaft, a clutch, etc.

[0137] The sensor system 703 may include sensors for sensing the surrounding environment of the vehicle (such as sensors for sensing whether there are obstacles around) and sensors for sensing water depth, humidity, etc. For example, a positioning system (the positioning system may be a global positioning system (GPS) system), or a Beidou system or other positioning systems), a radar, a laser rangefinder, an inertial measurement unit (IMU), and a camera, etc. The positioning system can be used to locate the geographic location of the vehicle. The IMU is used to sense the position and orientation changes of the vehicle based on inertial acceleration. In one embodiment, the IMU may be a combination of an accelerometer and a gyroscope. The radar may use radio signals to sense objects in the surrounding environment of the vehicle. In some embodiments, in addition to sensing objects, the radar may also be used to sense the speed and / or direction of travel of the object, etc.

[0138] In order to detect environmental information, objects, etc. outside the vehicle, a camera or the like may be configured at an appropriate location outside the vehicle. For example, in order to obtain an environmental image of the side of the vehicle, the camera may be on a rearview mirror on the side of the vehicle. The camera may be a static or video camera.

[0139] The control system 704 may include a software system for realizing vehicle driving control and vehicle wading protection, such as a master controller, a control device, a system for analyzing the vehicle surrounding environment, a system for pre-tightening the seat belt, a route planning system, an obstacle avoidance system, a visual system for image analysis, etc. The control system 704 may also include hardware systems such as a throttle, a steering wheel system, a seat belt system, an airbag system, and peripheral devices (such as a projection device, a display, etc.). In addition, the control system 704 may include components other than those shown and described in addition or in replacement. Alternatively, some of the components shown above may be reduced.

[0140] Further, as described above, the control system 704 can further implement a part of the above-mentioned vehicle wading protection method, obtain the monitored vehicle wading data, wherein the vehicle wading data includes: wading depth, wading time and vehicle humidity; generate a first control signal according to a wading protection strategy that matches the wading depth, wading time and vehicle humidity, and send the first control signal to the main controller, so that the main controller controls one or more target vehicle-mounted controllers indicated by the first control signal to stop running; in response to the vehicle environment meeting the safe operation conditions of the target vehicle-mounted controller, generate a second control signal, so that the main controller controls the target vehicle-mounted controller indicated by the second control signal to resume operation.

[0141] In addition, the control system 704 may also interact with external sensors, other autonomous driving devices, other computer systems, or users through the peripheral devices 706. The peripheral devices 706 may include wireless communication systems, onboard computers, microphones and / or speakers, cameras, and projectors.

[0142] In some embodiments, peripheral device 706 provides a means for a user of control system 704 to interact with the user interface. For example, an onboard computer can provide information to a user of the vehicle. The user interface can also operate the onboard computer to receive input from the user. The onboard computer can be operated through a touch screen. In other cases, the peripheral device can provide a means for communicating with other devices located in the vehicle. For example, a microphone can receive audio (e.g., voice commands or other audio input) from a user of the control system. Similarly, a speaker can output audio to a user of the control system.

[0143] The wireless communication system can communicate with one or more devices wirelessly directly or via a communication network. For example, the wireless communication system can communicate with a network such as a cellular network, WiFi, and a wireless local area network (WLAN), or can communicate directly with a device using an infrared link, Bluetooth, or ZigBee. Other wireless protocols, such as various autonomous driving communication systems, etc.

[0144] The power source 707 can provide power to various components of the vehicle. The power source 707 can be a rechargeable lithium-ion or lead-acid battery.

[0145] Some or all functions of implementing vehicle wading protection are controlled by computer system 708. Computer system 708 may include at least one processor that executes instructions stored in a non-transitory computer-readable medium such as a memory. Computer system 708 provides the above control system with execution code for implementing vehicle wading protection.

[0146] The processor can be any conventional processor, such as a commercially available central processing unit (CPU). Alternatively, the processor can be a dedicated device such as an application specific integrated circuit (ASIC) or other hardware-based processor. Those of ordinary skill in the art will appreciate that the processor, computer, or memory can actually include multiple processors, computers, or memories that may or may not be stored in the same physical housing. For example, the memory can be a hard drive or other storage media that is located in a housing different from the computer. Therefore, references to processors or computers will be understood to include references to a collection of processors or computers or memories that may or may not operate in parallel. Different from using a single processor to perform the steps described herein, some components such as steering components and deceleration components can each have their own processors that only perform determinations related to the functions specific to the components.

[0147] The user interface 709 is used to provide information to or receive information from a user of the vehicle. Optionally, the user interface 709 may include one or more input / output devices within the set of peripheral devices 706, such as a wireless communication system, an onboard computer, a microphone, and a speaker.

[0148] It should be understood that the above components are only examples. In actual applications, the components in the above modules or systems may be added or deleted according to actual needs. Figure 7 It should not be understood as limiting the embodiments of the present application.

[0149] Furthermore, an embodiment of the present invention also provides an electronic device. The electronic device may include:

[0150] one or more processors;

[0151] a storage device for storing one or more programs,

[0152] When the one or more programs are executed by the one or more processors, the one or more processors implement the vehicle wading protection method provided in the above embodiment.

[0153] Furthermore, an embodiment of the present invention also provides a computer-readable medium on which a computer program of a vehicle wading protection method is stored.

[0154] When the computer program is executed by the on-board processor, the vehicle control method for the ramp entry scenario provided in the first aspect embodiment described above is implemented.

[0155] Reference below Figure 8, which shows a schematic structural diagram of a computer system 800 suitable for implementing a vehicle control method for a ramp entry scenario according to an embodiment of the present invention. Figure 8 The computer system shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present invention.

[0156] like Figure 8 As shown, the computer system 800 includes a central processing unit (CPU) 801, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 802 or a program loaded from a storage part 808 into a random access memory (RAM) 803. In the RAM 803, various programs and data required for the operation of the system 800 are also stored. The CPU 801, the ROM 802, and the RAM 803 are connected to each other via a bus 804. An input / output (I / O) interface 805 is also connected to the bus 804.

[0157] The following components are connected to the I / O interface 805: an input section 806 including an output section 807 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 808 including a hard disk, etc.; and a communication section 809 including a network interface card such as a LAN card, a modem, etc. The communication section 809 performs communication processing via a network such as the Internet. A drive 810 is also connected to the I / O interface 805 as needed. A removable medium 811, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 810 as needed, so that a computer program read therefrom is installed into the storage section 808 as needed.

[0158] In particular, according to the embodiments disclosed in the present invention, the process described above with reference to the flowchart can be implemented as a computer software program. For example, the embodiments disclosed in the present invention include a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part 809, and / or installed from the removable medium 811. When the computer program is executed by the central processing unit (CPU) 801, the above-mentioned functions defined in the system of the present invention are executed.

[0159] It should be noted that the computer-readable medium shown in the present invention may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present invention, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device. In the present invention, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. This propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0160] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present invention. In this regard, each box in the flow chart or block diagram can represent a module, a program segment, or a part of a code, and the above-mentioned module, program segment, or a part of a code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flow chart, and the combination of the boxes in the block diagram or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0161] The modules involved in the embodiments of the present invention may be implemented by software or hardware. The modules described may also be set in a processor. For example, they may be described as: a processor including the above-mentioned acquisition unit and protection unit. The names of these modules or units do not, in some cases, constitute limitations on the modules or units themselves. For example, the acquisition unit may also be described as "a module or unit for acquiring monitored vehicle wading data".

[0162] As another aspect, the present invention also provides a computer-readable medium, which may be included in the device described in the above embodiment; or it may exist independently without being assembled into the device. The above computer-readable medium carries one or more programs, and when the above one or more programs are executed by a device, the device includes: obtaining monitored vehicle wading data, wherein the vehicle wading data includes: wading depth, wading time and vehicle humidity; generating a first control signal according to a wading protection strategy matching the wading depth, wading time and vehicle humidity, and sending the first control signal to the main controller, so that the main controller controls one or more target vehicle controllers indicated by the first control signal to stop running; in response to the vehicle environment meeting the safe operation conditions of the target vehicle controller, generating a second control signal, so that the main controller controls the target vehicle controller indicated by the second control signal to restart running.

[0163] According to the technical solution of the embodiment of the present invention, through the water wading protection strategy matching the water wading depth, water wading time and vehicle humidity, the main controller controls the on-board controllers in each on-board functional system to which it is electrically connected to stop running. Each on-board functional system can be independently controlled by the main controller, and the on-board functional system that does not affect the vehicle's driving can be controlled to be shut down, thereby preventing the on-board functional system from being damaged due to water wading, and ensuring the driving safety of users when the vehicle is wading.

[0164] In addition, the technical solution can also meet the safe operating conditions of the target vehicle-mounted controller in the vehicle environment, so that the main controller can control the target vehicle-mounted controller to resume operation without manual adjustment by the user, so that the on-board functional system of the wading vehicle can be automatically restored.

[0165] Compared with directly cutting off the vehicle power supply, the technical solution provided by the embodiment of the present invention independently controls each vehicle-mounted functional system, so that the vehicle-mounted functional system that is invaded by water can be shut down in time, while the vehicle-mounted functional system that is not invaded by water can still operate normally, which will not affect the vehicle power supply, thereby ensuring that each vehicle-mounted functional system of the vehicle can operate normally.

[0166] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vehicle wading protection method, characterized in that: Constructing the signal connection between the vehicle controller and the master controller in each vehicle functional system, including: Acquiring monitored vehicle wading data, wherein the vehicle wading data includes: wading depth, wading time and vehicle humidity; generating a first control signal according to a wading protection strategy matched to the wading depth, the wading time and the vehicle humidity, and sending the first control signal to the master controller so that the master controller controls one or more target vehicle controllers indicated by the first control signal to stop running; In response to the vehicle environment satisfying the safe operation condition of the target on-board controller, a second control signal is generated to enable the master controller to control the target on-board controller indicated by the second control signal to resume operation.

2. The vehicle wading protection method according to claim 1, characterized in that: The obtaining of the monitored vehicle wading data includes: In the vehicle height direction, vehicle wading data corresponding to different heights are obtained.

3. The vehicle wading protection method according to claim 1, characterized in that: The vehicle wading protection method further includes: identifying a current driving mode of the vehicle, and assigning a corresponding wading level to each of the vehicle-mounted functional systems according to the wading depth, the wading time and the vehicle humidity; The current driving mode and the wading level are sent to the master controller, so that the master controller controls one or more target vehicle controllers indicated by the first control signal to stop running in combination with the current driving mode and the wading level.

4. The vehicle wading protection method according to claim 3, characterized in that: The vehicle is pre-configured with a plurality of driving modes, wherein each of the driving modes is configured with one or more vehicle-mounted functional systems, and the current driving mode is one selected from the plurality of driving modes.

5. The vehicle wading protection method according to claim 3 or 4, characterized in that: The master controller controls one or more target vehicle controllers indicated by the first control signal to stop running in combination with the vehicle driving mode and the wading level, including: When the vehicle function system configured in the current driving mode is consistent with one or more target vehicle controllers indicated by the first control signal, the master controller directly controls the one or more target vehicle controllers indicated by the first control signal to stop running; In the case where the target vehicle controller indicated by the first control signal does not belong to the vehicle function system configured in the current driving mode, If the wading level of the target vehicle-mounted controller exceeds a preset level threshold, the master controller controls the target vehicle-mounted controller to stop running; If the wading level of the target vehicle-mounted controller does not exceed the preset level threshold, the target vehicle-mounted controller is kept operating normally.

6. The vehicle wading protection method according to claim 4, characterized in that: The plurality of driving modes include at least two of the following driving modes: A normal driving mode indicating that all vehicle function systems are normal, a low load driving mode indicating that vehicle function systems including low loads are turned off, a partial shutdown driving mode indicating that some non-essential vehicle function systems are turned off, and a full shutdown driving mode indicating that all non-essential vehicle function systems are completely turned off.

7. The vehicle wading protection method according to claim 1, characterized in that: The water protection strategy includes: A preset time threshold is configured for each installation height corresponding to each of the vehicle-mounted controllers; For each of the installation heights, when the wading depth exceeds the installation height and the wading time is less than a preset time threshold corresponding to the installation height, turning off the controller of the unused vehicle function system at the installation height; and / or, For each of the installation heights, when the wading depth exceeds the installation height and the wading time is greater than or equal to the preset time threshold corresponding to the installation height and the vehicle humidity is less than 100%, the controllers of some non-essential vehicle function systems at the installation height are turned off; and / or, For each of the installation heights, when the wading depth exceeds the installation height and the wading time is greater than or equal to the preset time threshold corresponding to the installation height and the vehicle humidity is equal to 100%, the controllers of all non-essential vehicle function systems at the installation height are turned off; and / or, The vehicle wading protection method further includes: providing a switch circuit on the circuit of each of the vehicle-mounted functional systems; The master controller controls one or more target vehicle-mounted controllers indicated by the first control signal to stop running, comprising: the master controller sends a first control instruction indicating power off to a switch circuit of the target vehicle-mounted controller to cut off the switch circuit; The master controller controls the target vehicle controller indicated by the second control signal to resume operation, including: the master controller sends a second control instruction indicating re-powering to a switch circuit of the target vehicle controller to reclose the switch circuit.

8. A vehicle wading protection device, characterized in that: The vehicle wading protection is realized based on the signal connection between the vehicle controller and the main controller in each vehicle functional system, including: an acquisition unit and a protection unit, wherein: The acquisition unit is used to acquire the monitored vehicle wading data, wherein the vehicle wading data includes: wading depth, wading time and vehicle humidity; The protection unit is used to generate a first control signal according to a wading protection strategy that matches the wading depth, the wading time and the vehicle humidity, and send the first control signal to the main controller, so that the main controller controls one or more target vehicle controllers indicated by the first control signal to stop running; in response to the vehicle environment meeting the safe operation conditions of the target vehicle controller, generate a second control signal, so that the main controller controls the target vehicle controller indicated by the second control signal to resume operation.

9. A vehicle wading protection system, characterized in that: include: A sensor, a master controller and a vehicle wading protection device as claimed in claim 8, wherein: The sensor is used to monitor vehicle wading data, wherein the vehicle wading data includes: wading depth, wading time and vehicle humidity; The main controller is used to control one or more target vehicle-mounted controllers indicated by the first control signal to stop running after receiving the first control signal sent by the vehicle water wading protection device; and to control the target vehicle-mounted controllers indicated by the second control signal to restart running after receiving the second control signal sent by the vehicle water wading protection device.

10. A vehicle, characterized in that: Including the vehicle wading protection system as described in claim 9.

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