SYSTEM AND METHOD FOR VEHICLE SUBMERSIBLE DETECTION AND RESCUE

Abstract

This disclosure discloses a vehicle submersion detection and rescue system (100). The system (100) comprises a battery submersion detection unit (102), a vehicle submersion detection unit (104), a relay unit (106), and a primary emergency control unit (108). The primary emergency control unit (108) controls a primary emergency power source when it detects submersion of the main battery (110), disconnects the main battery (110), and actuates actuators (114) to enable the safe egress of the occupants. The system (100) further comprises a secondary emergency control unit (112) with a secondary emergency power source to supply power to the actuators (114). The components of the system (100) communicate via a dedicated private communication line (122) that is separate from the vehicle's main communication network (116).The system (100) works proactively when it detects battery submersion and activates additional energy sources to provide uninterrupted power to the vehicle submersion detection and safety actuators, thus maintaining the functionality of the system even under adverse conditions.

Description

AREA OF INVENTION

[0001] The present invention relates to safety systems for motor vehicles, in particular systems for detecting vehicle drowning and for rescuing occupants with improved energy supply and communication reliability in emergency situations. BACKGROUND

[0002] Safety systems in vehicles have long been crucial for protecting occupants in accidents, collisions, and environmental hazards. Water-related incidents such as submersion or flooding pose a particular challenge, especially as vehicles increasingly rely on modern electronics and high-voltage components. In such scenarios, rapid water ingress can compromise the vehicle's systems, leading to electrical malfunctions, short circuits, and other safety hazards that endanger the occupants.

[0003] In most vehicles, the 12V battery is typically located in the engine compartment. This placement makes the battery vulnerable in submersion accidents. The battery's vulnerability increases the likelihood of failure, which in turn can disable the vehicle's submersion sensor system, as it relies solely on the battery's power. Water can cause the battery to fail or become dislodged, resulting in a loss of power to critical control units and sensors. This leads to communication failure, delays in system response, and ultimately, preventing the occupants from escaping the vehicle in time.

[0004] Furthermore, the battery can supply fluctuating power, which can lead to malfunctions in the rescue equipment's actuators. These problems significantly compromise occupant safety in submersion scenarios, highlighting the need for more robust and reliable safety systems. The current battery placement and vulnerability pose a major challenge in ensuring the continuous operation of safety systems during emergencies.

[0005] Conventional vehicle safety systems often lack comprehensive protection against submersion. Many existing systems primarily focus on preventing the vehicle from sinking and have limited capabilities to detect and respond to water ingress. Submersion can cause fluctuating battery power, potentially leading to the failure of critical actuators. This unreliable power supply compromises the effectiveness of safety systems and may prevent the timely activation of emergency mechanisms such as door unlocking, window operation, or communication systems, which are crucial for occupant rescue. The absence of dedicated battery submersion detection mechanisms leaves vehicle occupants unprotected during floods or accidental submersion.

[0006] Patent documents such as KR20120117477A, ​​CN112009409A, and CN118560422A have attempted to solve these problems. KR20120117477A discloses a device for protecting batteries that detects the submersion of a battery pack using submersion sensors and issues a warning. CN112009409A focuses primarily on electric vehicles and uses hydraulic and acceleration sensors to detect when the vehicle enters water. If the system detects that the vehicle has fallen into water, it interrupts the vehicle's high-voltage circuit and unlocks all doors and the trunk. CN118560422A discloses an actuating unit for carrying out escape and rescue measures when it detects that the vehicle is in a critical condition, as determined by the sensor unit.Furthermore, an emergency power supply is disclosed to provide energy to the entire system in the event of a power outage in the vehicle.

[0007] While these state-of-the-art solutions improve vehicle safety during submersion, they do not address all the problems associated with battery vulnerability and the reliability of the power supply in emergency situations. The integration of these systems into existing vehicle architectures and their ability to function reliably under extreme conditions remain a cause for concern.

[0008] Therefore, it is necessary to solve the aforementioned problems. A comprehensive safety system is required that addresses the vulnerabilities of vehicles in submersion scenarios. Such a system should ensure the continuous power supply to critical safety components, enable accurate and timely detection of submersion, and initiate appropriate safety measures to protect the occupants. Furthermore, the system should be designed to function under various environmental conditions. It functions reliably and can be seamlessly integrated into existing vehicle architectures without significantly increasing complexity or costs. SUBJECT OF THE INVENTION

[0009] The primary purpose of this disclosure is to provide a system and method for a vehicle submersion detection and rescue system that enables early detection of water ingress or voltage fluctuations in the primary battery.

[0010] Another objective of the present disclosure is to provide a system and a method for a waterproof system that ensures a continuous power supply to the drowning sensor and actuation system.

[0011] Another purpose of the present disclosure is to provide an auxiliary communication system that remains operational even in adverse situations and facilitates the escape of the occupants.

[0012] Another purpose of this disclosure is to provide an additional energy source for safety and detection systems, ensuring the continuous operation of critical components even if the main battery is damaged during submersion.

[0013] Another purpose of the present disclosure is to provide an additional communication channel as a backup in case of drowning emergencies. SUMMARY

[0014] According to one aspect of the present invention, a vehicle submersion detection and rescue system is provided. The system comprises a battery submersion detection unit, a vehicle submersion detection unit, a relay unit, and a primary emergency control unit. The battery submersion detection unit is configured to detect the submersion of the vehicle's main battery in water. The vehicle submersion detection unit is configured to detect the submersion of the vehicle in water. The relay unit is configured to selectively connect or disconnect power from the main battery to the vehicle submersion detection unit and the primary emergency control unit. The primary emergency control unit is communicatively coupled to the battery submersion detection unit, the vehicle submersion detection unit, and the relay unit.The primary emergency control unit is configured to activate a primary emergency power source to power the vehicle submersion detection unit and the primary emergency control unit when submersion of the vehicle's main battery is detected. The primary emergency control unit is also configured to operate the relay unit to disconnect the main battery from the vehicle submersion detection unit and the primary emergency control unit while the primary emergency power source is activated.

[0015] The system further includes one or more actuators configured to enable the safe egress of the occupants from the vehicle. The primary emergency control unit is configured to activate the one or more actuators upon detecting that the vehicle is submerged. These actuators include the vehicle's seatbelt release mechanism, the door control unit, the emergency call unit, and similar components.

[0016] The primary emergency control unit comprises the primary emergency power source, which is configured to be charged from the main battery. The primary emergency control unit further comprises a primary control logic unit and a primary communication module. The primary emergency power source includes one or more primary supercapacitors integrated into the primary control logic unit and the primary communication module. The primary communication module is configured to communicate with the battery submersion detection unit and the vehicle submersion detection unit via a dedicated private communication network. This dedicated private communication network is separate from the vehicle's main communication network.

[0017] The system further includes a secondary emergency control unit, which is communicatively coupled between the primary emergency control unit and the one or more actuators. The primary emergency control unit is configured to send a control signal to the secondary emergency control unit to activate the one or more actuators. Upon receiving the control signal, the secondary emergency control unit is configured to supply power to the one or more actuators via a secondary emergency power source.

[0018] The secondary emergency control unit comprises the secondary emergency power source, which is connected to the main battery via the relay unit. The secondary emergency power source is configured to be charged from the main battery. The secondary emergency control unit further comprises a secondary control logic unit and a secondary communication module. The secondary emergency power source includes one or more secondary supercapacitors integrated with the secondary control logic unit and the secondary communication module. The secondary communication module is configured to communicate with the primary communication module and the one or more actuators via the dedicated private communication network.

[0019] The battery submersion detection unit comprises one or more battery sensors and a battery submersion detection logic unit. The one or more battery sensors include one or more diaphragm pressure water sensors, conductivity water sensors, or a combination thereof. The battery submersion detection logic unit detects submersion of the main battery based on one or more battery sensor signals generated by the battery sensors. The battery submersion detection unit is attached either to the main battery or to a battery housing.

[0020] The vehicle submersion detection unit comprises one or more vehicle submersion detection sensors and a vehicle submersion detection logic unit. The one or more vehicle submersion detection sensors include one or more of the following: pressure sensors, water ingress sensors, humidity sensors, orientation sensors, position sensors, or a combination thereof. The vehicle submersion detection logic unit detects vehicle submersion based on one or more vehicle submersion detection sensor signals generated by the vehicle submersion detection sensors.

[0021] Furthermore, the system can be housed in a waterproof enclosure.

[0022] According to a further aspect of the present invention, a method for detecting vehicle submersion and initiating rescue measures is carried out. The method comprises detecting the submersion of a main battery and the vehicle itself using battery submersion detection units and vehicle submersion detection units, respectively. When battery submersion is detected, a primary emergency control unit activates an emergency power source and switches on a relay unit to disconnect the main battery, thus ensuring the continued operation of the system. When vehicle submersion is detected, the primary emergency control unit actuates the actuators to allow the occupants to escape.This procedure offers a comprehensive concept for vehicle safety in water-related emergencies, combining early detection, energy management and automated rescue operations to increase the chances of occupants surviving submersion.

[0023] The present invention provides a reliable and effective vehicle submersion detection and rescue system that ensures the safety of the occupants in emergency situations. The system enables early detection of water ingress and provides an uninterrupted power supply for critical safety components. The proactive communication system and auxiliary power sources increase the chances of successful operation.

[0024] The preceding sections were given as a general introduction and are not intended to limit the scope of the following claims. The described embodiments, along with further advantages, are best understood by reference to the following detailed description in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1: An example block diagram of a vehicle submersion detection and rescue system. Fig. 2: An example block diagram of the primary emergency control unit. Fig. 3: An example block diagram of the secondary emergency control unit. Fig. 4: Example of the sensor arrangement on the main battery for detecting battery submersion. Fig. 5: An example block diagram of the battery submersion detection unit. Fig. 6: An example block diagram of the vehicle submersion detection unit. Fig. 7: Exemplary flowchart of a procedure for detecting vehicle submersion and initiating rescue operations. DETAILED DESCRIPTION OF THE INVENTION

[0025] Aspects of the present invention are best understood by reference to the description contained herein. All aspects described herein will be better appreciated and understood when considered in conjunction with the following descriptions. However, it should be understood that the following descriptions, while indicating preferred aspects and numerous specific details thereof, are given for illustrative purposes only and should not be treated as limitations. Changes and modifications may be made within the scope described herein without departing from the spirit and scope of the invention, and the present invention includes all such modifications.

[0026] This disclosure relates to a vehicle submersion detection and rescue system designed to enhance the safety of vehicle occupants during submersion emergencies. The system comprises several interconnected units, including a battery submersion detection unit, a vehicle submersion detection unit, a relay unit, and a primary emergency control unit. These interconnected units work together to detect battery submersion, isolate critical electrical systems, and activate emergency measures upon detection of vehicle submersion. The system utilizes sensor technologies, dedicated power sources, and a private communication network to ensure reliable operation even under adverse conditions. The system's objective is to provide occupants with a reliable rescue system in the event of submersion.This disclosure addresses the unique challenges that arise when vehicles are submerged and offers a proactive and robust solution to protect occupants in such emergencies.

[0027] The term “module” or “unit” used here refers to any known or subsequently developed hardware, software, firmware, artificial intelligence, fuzzy logic or combination of hardware and software capable of performing the functionality assigned to this element.

[0028] Fig. Figure 1 shows an exemplary block diagram of a vehicle submersion detection and rescue system 100. The system 100 comprises a battery submersion detection unit 102, a vehicle submersion detection unit 104, a relay unit 106, a primary emergency control unit 108, a secondary emergency control unit 112 and one or more actuators 114.

[0029] The battery submersion detection unit 102 is configured to detect when the vehicle's main battery 110 is submerged in water. The battery submersion detection unit 102 is connected to one or more battery sensors 502 and a battery submersion detection logic unit 504 (shown in Fig. 5) equipped with a device that can accurately detect and confirm the submersion of battery 110.

[0030] The vehicle submersion detection unit 104 is configured to detect the submersion of the entire vehicle in water. The vehicle submersion detection unit 104 is equipped with one or more vehicle sensors 602 for vehicle submersion detection and a vehicle submersion detection logic unit 604. equipped (shown in Fig. 6) Detection is based on signals generated by one or more vehicle submersion detection sensors 602.

[0031] Furthermore, the relay unit 106 is configured to selectively connect or disconnect the power from the main battery 110 to other parts of the system 100. The relay unit 106 acts as a control switch for the power supply and ensures that the power from battery 110 is switched off in an emergency. The main battery 110 is connected to the system 100 via the main power line 118 through the relay unit 106 to feed power from the main battery 110 into the system 100.

[0032] The primary emergency control unit 108 comprises a primary communication module 202, a primary control logic unit 204, and a primary emergency power source 206 (shown in Fig. 2) The primary emergency control unit 108 is communicative with the The battery submersion detection unit 102, the vehicle submersion detection unit 104, the secondary emergency control unit 112, and the relay unit 106 are coupled via a private communication network, i.e., a private communication line 122. The primary emergency control unit 108 is configured to activate the primary emergency power source 206 when the vehicle submersion detection unit 102 detects that the vehicle's main battery 100 has been submerged. The primary emergency control unit 108 is configured to actuate the relay unit 106 to disconnect the main battery 110 from the rest of the system 100. After the operation of the relay unit 106, the battery submersion detection unit 104, the primary emergency control unit 108, the secondary emergency control unit 112 and the one or more actuators 114 are disconnected from the main battery 110 to ensure the interruption of the vulnerable power supply of the system 100.When the primary emergency power source 206 is activated, the primary emergency control unit 108 supplies the vehicle submersion detection unit 104 with energy via the primary emergency power line 120, thus ensuring a stable and reliable power supply for the accurate detection and monitoring of vehicle submersion conditions.

[0033] Furthermore, it includes the secondary emergency control unit 112, a secondary communication module 302, a secondary control logic unit 304, and a secondary emergency power source 306 (shown in Fig. 3) The secondary emergency control unit 112 is communicatively coupled between the primary emergency control unit 108 and the one or more actuators 114 via the private communication line 122.

[0034] The primary emergency control unit 108 is configured to send a control signal to the secondary emergency control unit 112 via the private communication line 122 to activate one or more actuators 114 when the vehicle is detected submerged. The primary emergency control unit 108 is configured to detect the submersion of the detected vehicle by the vehicle submersion detection unit 104 via the private communication line 122. Upon receiving the control signal, the secondary emergency control unit 112 then supplies power to the actuators 114 via the secondary emergency power line 124.

[0035] Furthermore, the main power line 118 is responsible for supplying the entire system 100 with power from the main battery 110 during normal operation. The main battery 110 is configured to power the primary emergency control unit 108, the battery submersion detection unit 102, the vehicle submersion detection unit 104, the secondary emergency control unit 112, and one or more actuators 114. The primary emergency power source 206 and the secondary emergency power source 306 are charged by the main battery 110 via the main power line 118.

[0036] The one or more actuators 114 of the system 100 enable the safe escape of the occupants from the vehicle in the event of submersion. The actuators 114 can comprise various types of electromechanical devices configured to operate specific safety mechanisms. The actuators 114 are configured to function reliably even underwater, often employing waterproof motors or electromagnets. The actuators 114 are strategically placed throughout the vehicle to provide the occupants with multiple escape routes. The primary emergency control unit 108 is configured to activate the actuators 114 via the secondary emergency control unit 112 when it detects that the vehicle is submerged. The secondary emergency control unit 112 then supplies power to the actuators 114 via the secondary emergency power line 124 after receiving the control signal.

[0037] In one embodiment, the actuators 114 may include, among other things, seatbelt release actuators, door control units, emergency call control units, and the like. The seatbelt release actuators quickly release the seatbelts, allowing occupants to rapidly free themselves from the restraints in an emergency. The door control unit manages the locking and unlocking of a vehicle's doors, potentially overriding the usual locking mechanisms to ensure that occupants can exit or rescue personnel can enter. The emergency control unit manages the vehicle's emergency communication system and automatically sends distress signals with location data to emergency services. Upon submersion, the actuators activate a comprehensive safety system that enables occupants to escape and be rescued.

[0038] Furthermore, the System 100 communicates via a private network utilizing a dedicated private communication network line 122, configured to be separate from the vehicle's main network 116. The use of a private network enhances the reliability and safety of the System 100 during submersion operations. By operating over an independent private network, the System 100 ensures that safety-critical communications are not compromised, even if the vehicle's primary electrical or communication systems fail during submersion due to water damage or other factors. The private communication line 122 connects all components of the emergency system, including the battery submersion detection unit 102, the vehicle submersion detection unit 104, the primary emergency control unit 108, the secondary emergency control unit 112, and the actuators 114.The dedicated network enables fast, uninterrupted data transmission and thus rapid decision-making and response in emergency situations.

[0039] In one embodiment, the primary emergency control unit 108 and the one or more actuators 114 are connected to the vehicle's main network 116 via the vehicle network communication line 126 to perform various diagnostic and control operations during normal vehicle operation. This configuration allows for continuous monitoring and testing of the system's components without requiring a separate diagnostic infrastructure. The configuration also enables software updates and parameter adjustments of the system 100 via the vehicle's standard communication protocols. However, for emergency situations, the system 100 is designed to operate independently of its private network to maintain functionality even if the vehicle's main network 116 is compromised.

[0040] In one embodiment, the private communication network 122 can use special protocols, e.g. CAN (Controller Area Network), FlexRay, Ethernet or any form of wireless communication optimized for emergency communication in the vehicle and ensuring low-latency, high-priority message transmission within the system 100.

[0041] In one embodiment, the System 100 is housed in a watertight enclosure. The watertight enclosure provides protection for all components of the System 100, including the battery submersion detection unit 102, the vehicle submersion detection unit 104, the primary emergency control units 108 and 112, and the relay unit 106. The enclosure can be made of high-quality, waterproof materials that can withstand prolonged exposure to water and high pressure. The watertight enclosure ensures that the System 100 remains operational even when the vehicle is completely submerged, allowing the System 100 to continue functioning and coordinating the occupants of the rescue vehicle even if other vehicle systems may have failed due to water damage.

[0042] In Fig. Figure 2 shows an example block diagram 200 of the primary emergency control unit 108. The primary emergency control unit 108 comprises the primary communication module 202, the primary control logic unit 204, and the primary emergency power source 206. The primary communication module 202 serves as an interface for data exchange between the primary emergency control unit 108 and the rest of the system 100, ensuring robust and secure communication via the private communication line 122. The primary control logic unit 204 is the decision-making core of the system, processing inputs from the battery submersion detection unit 102 and the vehicle submersion detection unit 104 and determining the appropriate emergency measures based on programmed algorithms. The primary control logic unit 204 is configured to control the relay unit 106 via a control signal.The primary control logic unit 204 is configured to output the control signal to the secondary emergency control unit 112. The primary emergency power source 206, typically consisting of high-capacitance supercapacitors, provides a reliable and rapidly discharged power supply for the system 100 if the main battery 110 is damaged. In one embodiment, the primary communication module 202, the primary control logic unit 204, and the primary emergency power source 206 can be integrated into a single compact unit. This integration allows for a more efficient design, reducing the overall size and complexity of the system while improving its reliability and response time. The integrated design also increases the system's resistance to environmental factors such as water ingress.

[0043] Fig. Figure 3 shows a block diagram 300 of the secondary emergency control unit 112. The secondary emergency control unit 112 comprises the secondary communication module 302, the secondary control logic unit 304, and the secondary emergency power source 306. The secondary communication module 302 serves as a communication bridge between the secondary emergency control unit 112 and the rest of the system 100, including the primary emergency control unit 108 and the actuators 114. The secondary communication module 302 is operated via the private communication line 122. The secondary control logic unit 304 is the decision-making core for the operation of the secondary emergency control unit 112. The secondary control logic unit 304 processes the signal data received via the secondary communication module 302 and initiates appropriate actions based on the received information.For example, upon receiving the control signal from the primary emergency control unit 108, the secondary control logic unit 304 triggers the activation of the secondary emergency power source 306 to supply the actuators 114 with the energy required for their activation. The secondary emergency power source 306 comprises one or more supercapacitors configured to be charged via the vehicle's main battery 110. However, in the event of the main battery being submerged, the secondary power source 306 is activated to provide uninterrupted power to the actuators 114, ensuring the continued operation of the vehicle's safety systems even without the main battery. The secondary emergency power source 306 is configured to meet the high power requirements of the actuators 114.In one embodiment, the secondary communication module 302, the secondary control logic unit 304, and the secondary emergency power source 306 can be integrated into a single compact unit. This integration enables a more efficient design, reducing the overall size and complexity of the system while improving its reliability and response time. The integrated design also increases the system's resistance to environmental factors such as water ingress.

[0044] Fig. Figure 4 shows an exemplary arrangement 400 of the battery sensors 502 on a housing 402 of the main battery 110 for detecting submersion of the battery. In one embodiment, the battery submersion detection unit 102 can be attached to the housing 402 of the battery or to the battery 110 itself. In one embodiment, the one or more battery sensors 502 comprise one or more diaphragm pressure water sensors, conductivity water sensors, or a combination thereof. For example, the battery 110 is equipped with two diaphragm pressure water sensors D1, D2 and one conductivity water sensor C1, as shown in Fig. Figure 4 shows that sensors D1, D2, and C1 are strategically positioned on the main battery 110. The battery sensors 502 are configured to detect when the battery 110 is submerged in water. Sensors D1 and D2 are configured to provide a positive signal when water enters the battery housing and creates a higher pressure. Additionally, sensor C1 is a conductivity sensor that provides an extra positive signal when water is detected, serving as a redundant measure to prevent false alarms. Furthermore, the housing arrangement can be provided with one or more openings 404 to ensure that no water is trapped inside the housing under normal conditions, so that the sensors are only activated when the battery is actually submerged.In one embodiment, sensor D1 is positioned below the battery terminals to ensure that the submersion of battery 110 is detected before the water reaches the level of the battery terminals, allowing system 100 to isolate battery 110 long before potential water contact. The arrangement of sensors D1, D2, and C1 provides a robust and reliable method for the early detection of battery submersion and increases the overall safety of the vehicle's electrical system in water-related emergencies.

[0045] In Fig. Figure 5 shows an example block diagram 500 of the battery submersion detection unit 102. The battery submersion detection unit 102 comprises one or more battery sensors 502 and a battery submersion detection logic unit 504. The one or more battery sensors 502 are designed to detect the presence of water in the vicinity of the battery 110. The battery sensors 502 can be of various types, such as diaphragm pressure water sensors, conductivity water sensors, or a combination thereof. The different sensor types offer unique advantages in detecting ingress of water and ensure a comprehensive and reliable detection system. The battery submersion detection logic unit 504 is the processing core of the battery submersion detection unit 102.The battery submersion detection logic unit 504 receives and analyzes signals from the battery sensors 502 to determine whether the battery has been submerged. The logic unit 504 employs sophisticated algorithms to interpret the sensor data, filter out false positives, and ensure rapid detection of actual submersion events.

[0046] The battery submersion detection unit 102 is crucial for providing early warning of potential battery damage from water ingress, allowing the system 100 to take preventative measures before the vehicle's safety systems are compromised. The battery submersion detection unit 102 communicates with the primary emergency control unit 108, enabling an appropriate response to protect the vehicle's occupants and safety systems in submersion scenarios.

[0047] In Fig. Figure 6 shows an exemplary block diagram 600 of the vehicle submersion detection unit 104. The vehicle submersion detection unit 104 comprises one or more vehicle sensors 602 and a vehicle submersion detection logic unit 604. The one or more vehicle submersion detection sensors 602 are designed to detect the submersion of the vehicle in water. In one embodiment, the vehicle submersion sensors 602 can include, for example, but not exclusively, pressure sensors, water ingress sensors, humidity sensors, orientation sensors, and position sensors. The different sensor types ensure comprehensive coverage of the vehicle and enable accurate detection of the vehicle submersion from multiple angles and in various scenarios. The pressure sensors, for example, can detect changes in ambient pressure during submersion.The water ingress sensors can be strategically placed to detect water entering the vehicle cabin or other critical areas. The humidity sensors can detect a sudden increase in humidity, while the orientation sensors can determine if the vehicle has tilted or rolled over in the water. Similarly, the position sensors can be used to determine whether the vehicle is in a flood-prone area or in a body of water.

[0048] Furthermore, the vehicle submersion detection logic unit 604 serves as the processing core for the data acquired by one or more vehicle sensors 602. The vehicle submersion detection logic unit 604 employs suitable algorithms to analyze and interpret the sensor data and to distinguish between normal operating conditions and potential submersion events. The vehicle submersion detection logic unit 604 can also correlate data from multiple sensors to increase detection accuracy and reduce false alarms. Upon detecting a submersion, the vehicle submersion detection unit 604 communicates with the primary emergency control unit 108 and triggers the activation of one or more actuators 114 s to protect the vehicle occupants.

[0049] In one embodiment, the primary and secondary communication modules 202 and 302 utilize vehicle communication protocols optimized for emergency scenarios, ensuring low latency and high-priority message transmission. For example, but not exclusively, the modules 202 and 302 can be equipped with multiple communication interfaces, including CAN (Controller Area Network), FlexRay, or Ethernet connectors for wired connections, and RF (Low-Power Radio Frequency) transceivers for wireless communication. The modules 202 and 302 are designed to operate over a dedicated private communication network separate from the vehicle's main communication system, thus enhancing reliability and security. The modules 202 and 302 support bidirectional communication, enabling real-time status updates, command transmission, and system diagnostics.

[0050] The primary emergency control unit 204, the secondary control logic unit 304, the battery submersion detection logic unit 504, and the vehicle submersion detection logic unit 604 serve as processing cores for the primary emergency control unit 108, the secondary emergency control unit 112, the battery submersion detection unit 102, and the vehicle submersion detection unit 104, respectively. In one embodiment, the logic units 204, 304, 504, and 604 can be implemented, for example, but not exclusively, with field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), central processing units (CPUs), or systems-on-chip (SoCs).

[0051] Fig.Figure 7 shows an exemplary flowchart of a procedure 700 for detecting vehicle submersion and initiating rescue measures. The procedure 700 is configured to be executed by the system 100. In step 702, the procedure 700 may include the step of continuously monitoring the submersion of the vehicle's main battery 110 in water, using the battery submersion detection unit 102. In step 704, the procedure 700 may include the step of continuously monitoring the submersion of the vehicle in water, using the vehicle submersion detection unit 104. In step 706, when battery submersion is detected, the primary emergency control unit 108 activates the primary emergency power source 206 to power the vehicle submersion detection unit 104 and the primary emergency control unit 108.In step 708, procedure 700 may include the step of operating the relay unit 106 to disconnect the main battery 110 from the vehicle submersion detection unit 104 and the primary emergency control unit 108. In step 710, procedure 700 may include the step of actuating one or more actuators 114 to enable the occupants to safely exit the vehicle using the primary emergency control unit 108 when vehicle submersion is detected using the vehicle submersion detection unit 104.

[0052] The battery submersion detection and recovery system comprises a battery submersion detection unit, a vehicle submersion detection unit, a relay unit, and a primary emergency control unit. The battery submersion detection unit detects the main battery being submerged in water using sensors attached directly to the battery or its housing for optimal detection. The vehicle submersion detection unit utilizes multiple sensors, including pressure sensors, water ingress sensors, humidity sensors, orientation sensors, and position sensors, to detect the vehicle being submerged. The relay unit acts as a power management component, selectively connecting or disconnecting the main battery's power to other system components. This allows critical components to be isolated when necessary.The primary emergency control unit serves as the central processing unit, communicating with the battery and vehicle submersion detection units, as well as the relay unit. When battery submersion is detected, the system activates a primary emergency power source to maintain power to critical components. The primary emergency control unit also controls the relay unit to disconnect the main battery from the detection units and itself during the emergency power supply activation.

[0053] The present disclosure offers numerous advantages over existing solutions. The system provides a robust and reliable method for safely exiting the vehicle in the event of submersion, potentially saving lives in emergency situations. The system's ability to maintain critical functions even if the main battery is damaged ensures that safety measures can be activated in the worst-case scenario. The use of additional communication networks and power sources further enhances the overall reliability of the system.

[0054] In the event of vehicle submersion, the system reacts proactively. As soon as the battery submersion detection unit receives a warning, the system activates its auxiliary power source. This ensures an uninterrupted power supply for continued submersion detection and the safety actuators, maintaining system functionality even under adverse conditions. The integration of a dedicated private communication network increases the system's resilience and ensures that safety-critical communication networks are not disrupted by damage to the vehicle's main electrical systems. The modular design facilitates integration into various vehicle types and allows for future upgrades as technology advances.

[0055] These embodiments serve only to illustrate the inventive concepts contained herein. Other embodiments and modifications can be made to the compositions and processes without departing from the spirit and scope of the invention. Therefore, the scope of the present invention should not be limited to the embodiments described herein, but should be defined by the appended claims and their equivalents. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] KR 20120117477A

[0006] CN 112009409A

[0006] CN 118560422A

[0006]

Claims

[1] Vehicle submersion detection and rescue system (100) comprising the following: a battery-powered submersible detection unit (102); a vehicle submersion detection unit (104); a relay unit (106); and a primary emergency control unit (108); wherein the battery submersion detection unit (102) is configured to detect the submersion of a main battery (110) of the vehicle in water; wherein the vehicle submersion detection unit (104) is configured to detect the submersion of the vehicle into the water; wherein the relay unit (106) is configured to selectively connect or disconnect the power from the main battery (110) to the vehicle submersion detection unit (104) and the primary emergency control unit (108); and wherein the primary emergency control unit (108) is communicatively coupled with the battery submersion detection unit (102), the vehicle submersion detection unit (104) and the relay unit (106), the primary emergency control unit (108) being configured to activate a primary emergency power source (206) to supply power to the vehicle submersion detection unit (104) and the primary emergency control unit (108) when submersion of the vehicle's main battery (110) is detected; and wherein the primary emergency control unit (108) is configured to actuate the relay unit (106) to disconnect the main battery (110) from the vehicle submersion detection unit (104) and the primary emergency control unit (108) during activation of the primary emergency power source (206). [2] System according to claim 1, wherein the system (100) further comprises one or more actuators (114) configured to enable the occupants to exit the vehicle safely; and wherein the primary emergency control unit (108) is configured to actuate the one or more actuators (114) upon detecting that the vehicle is submerged. [3] System according to claim 1, wherein the primary emergency control unit (108) comprises the primary emergency power source (206) configured to be charged via the main battery (110), and the primary emergency control unit (108) further comprises: a primary control logic unit (204); and a primary communication module (202); wherein the primary emergency power source (206) comprises one or more primary supercapacitors integrated with the primary control logic unit (204) and the primary communication module (202); wherein the primary communication module (202) is configured to communicate with the battery submersion detection unit (102) and the vehicle submersion detection unit (104) via a dedicated private communication network (122); and wherein the dedicated private communication network (122) is separate from the main communication network of a vehicle (116). [4] System according to claim 2, wherein the system further comprises a secondary emergency control unit (112) which is communicatively coupled between the primary emergency control unit (108) and the one or more actuators (114); wherein the primary emergency control unit (108) is configured to output a control signal to the secondary emergency control unit (112) to activate the one or more actuators (114); and wherein the secondary emergency control unit (112) is configured to supply energy to the one or more actuators (114) via a secondary emergency power source (306) upon receiving the control signal. [5] System according to claim 4, wherein the secondary emergency control unit (112) comprises the secondary emergency power source (306) which is coupled to the main battery (110) via the relay unit (106), wherein the secondary emergency power source (306) is configured to be charged via the main battery (110), and wherein the secondary emergency control unit (112) further comprises: a secondary control logic unit (304); and a secondary communication module (302); wherein the secondary emergency power source (306) comprises one or more secondary supercapacitors integrated with the secondary control logic unit (304) and the secondary communication module (302); and wherein the secondary communication module (302) is configured to communicate with the primary communication module (202) and the one or more actuators (114) via the dedicated private communication network (122). [6] System according to claim 1, wherein the battery submersion detection unit (102) comprises: one or more battery sensors (502); and a battery submersion detection logic unit (504); wherein the one or more battery sensors (502) comprise one or more of the membrane pressure water sensors, conductivity water sensors or a combination thereof; wherein the battery submersion detection logic unit (504) detects the submersion of the main battery (110) based on one or more battery sensor signals generated by the battery sensors; and wherein the battery submersion detection unit (102) is attached either to the main battery or to a battery housing. [7] System according to claim 1, wherein the vehicle submersion detection unit (104) comprises: one or more vehicle submersion detection sensors (602); and a vehicle submersion detection logic unit (604); wherein the one or more vehicle submersion detection sensors (602) comprise one or more of the following sensors: pressure sensors, water ingress sensors, humidity sensors, orientation sensors, position sensors or a combination thereof; and wherein the vehicle submersion detection logic unit (604) detects vehicle submersion based on one or more vehicle submersion detection sensor signals generated by the vehicle submersion detection sensors (602). [8] System according to claim 1, wherein the one or more actuators (114) comprise the vehicle's seat belt release actuators, the door control unit, the emergency control unit and the like. [9] System according to claim 1, wherein the system is enclosed in a sealed, watertight enclosure. [10] Method (700) for detecting vehicle submersion and initiating rescue operations, the method comprising: Monitoring of the submersion of a vehicle's main battery (110) in water by a battery submersion detection unit (102); Monitoring of the vehicle's submersion in water by a vehicle submersion detection unit (104); Activation of a primary emergency power source (206) by a primary emergency control unit (108) to supply power to the vehicle submersion detection unit (104) and the primary emergency control unit (108) when detecting submersion of the main battery (110); Operating a relay unit (106) by the primary emergency control unit (108) to disconnect the main battery (110) from the vehicle submersion detection unit (104) and the primary emergency control unit (108) during activation of the primary emergency power source (206); Activation of one or more actuators (114) by the primary emergency control unit (108) to enable the safe exit of the occupants from the vehicle when submersion of the vehicle is detected.

Images