Fire control system
The integrated fire control system in electric vehicles detects and extinguishes battery fires promptly, preventing spread and informing users, addressing the limitations of existing systems.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- OYAK RENAULT OTOMOBIL FABRIKALARI ANONIM SIRKETI
- Filing Date
- 2025-11-21
- Publication Date
- 2026-06-04
Smart Images

Figure TR2025051493_04062026_PF_FP_ABST
Abstract
Description
[0001] FIRE CONTROL SYSTEM
[0002] TECHNICAL FIELD
[0003] The invention relates to a computer-based fire control system integrated with the battery monitoring system found in electric vehicles in order to control the fire arising from the batteries in electric and hybrid vehicles and to warn the user in situations that may cause a fire.
[0004] PRIOR ART
[0005] Batteries in electric and hybrid vehicles pose various risks due to their high energy density. These batteries can pose a fire risk, particularly if they are damaged physically, overheated, overcharged, or have manufacturing defects. Various solutions have been developed to prevent battery fires. They typically comprise passive protective materials around battery packs, fire detection sensors, and circuit elements that electrically disconnect the battery system in an emergency. However, current techniques often fail to provide adequate response. Once a fire has started, intervention can be difficult and delayed, potentially causing the fire to spread rapidly and causing irreversible damage to the vehicle. Additionally, existing systems lack adequate mechanisms to detect and prevent situations such as overheating and overcharging before a fire. In situations where there is a risk of fire, early warning systems are limited, and users are usually informed of the situation after the fire has broken out.
[0006] The application CN111129371 A describes a protection device for preventing thermal runaway in batteries. This device comprises a fire-resistant cover and a protective layer. However, this system only provides a mechanism that comes into play after a fire has broken out. However, this system does not detect, control, and extinguish a fire in a timely manner. Furthermore, it does not notify the user of potential fire situations.
[0007] In the application numbered WO2022196960A1 , a system for fire safety in electric vehicles is presented. This system comprises a battery cell protection device consisting of cooling and fire extinguishing layers that protect the battery cells from overheating and are activated in the event of a fire. The system also offers functions such as opening the vehicle doors when a fire is detected, preventing the spread of toxic gases and evacuating the user. This system does not ensure that the fire is detected, controlled and extinguished in the minimum time. Additionally, it does not provide information to the user about possible fire situations.
[0008] In the application numbered WO2022196960A1 , a system for fire safety of batteries used in electric vehicles is presented. This system comprises a protection layer that protects the battery cells from overheating and is activated in the event of a fire. This system does not ensure that the fire is detected, controlled and extinguished in the minimum time. Additionally, it does not provide information to the user about possible fire situations.
[0009] The application CN103219480A describes a multi-layer battery pack to prevent fire and explosion in the event of a collision. This system comprises a cut-off mechanism that physically separates the battery during a collision, providing early fire prevention and explosion prevention. However, this system is only active in collision situations and does not provide proactive protection before and during a fire.
[0010] In current techniques, there is a lack of an active structure that surrounds the battery and extinguishes the fire to ensure complete control of the fire. For this reason, an innovative solution that minimizes the risk of fire and provides effective protection both before and during a fire has become necessary. In addition, the current technology does not provide a way to detect in advance the situations that may cause fire (excessive temperature or overcharge) and warn the user in a way that he / she will notice.
[0011] Considering the problems mentioned above, there is a need for a fire control system that can control the fire caused by the batteries in electric and hybrid vehicles and warn the user in situations that may cause a fire.
[0012] As a result, all the problems mentioned above have made it necessary to make an innovation in the relevant field.
[0013] OBJECT OF THE INVENTION
[0014] The present invention is put forward with the aim of eliminating the above-mentioned problems and making a technical innovation in the relevant field.
[0015] The object of the invention is to provide advance warning to the user in case of overheating and overcharging which may cause fire in batteries used in electric and hybrid vehicles. This way, the fire hazard is detected in advance and the user is able to prevent fire by resolving overcharging or overheating issues. The object of the invention is to ensure that, in the event of a fire in the batteries used in electric and hybrid vehicles, the fire is detected and extinguished by taking it under control in the minimum time.
[0016] The object of the invention is to prevent a fire from spreading to areas outside the battery in the event of a fire in the batteries used in electric and hybrid vehicles. This ensures passenger safety and prevents damage to the vehicle.
[0017] BRIEF DESCRIPTION OF THE INVENTION
[0018] The present invention is a fire control system to achieve all the purposes mentioned above and which will emerge from the detailed description below.
[0019] The invention relates to a computer-based fire control system integrated with the battery monitoring system found in electric vehicles to control the fire arising from the batteries in electric and hybrid vehicles and to warn the user in situations that may cause a fire, characterized in that; it comprises a chassis, configured to surround the said battery, a housing element that ensures that the components inside the vehicle are not damaged in the event of a fire and that the battery is protected from environmental factors, a connection element that ensures that the chassis is connected to the housing element to ensure that it remains in a determined position without contacting the battery, more than one capsule containing flame retardant / retardant chemicals and connected to the chassis surrounding the battery to ensure that the fire is controlled and extinguished when a flame is detected in the battery, a flame sensor connected to the enclosure element to detect a fire in the battery, when the flame is detected by the flame sensor, a trigger that causes each capsule to explode in order to discharge the chemical inside the said capsules onto the battery in order to control and extinguish the fire, a screen that allows the user to receive charge and temperature data obtained from the mentioned battery monitoring systems and to be warned audibly and / or visually when there is a temperature (over temperature) or charge (overcharging) situation above the threshold value determined in these data, a control unit that receives the signals from the flame sensor and activates the triggers when flame is detected.
[0020] A preferred embodiment of the invention is that it comprises four connection elements that enable the four corners of the chassis to be connected to the four corners of the housing element in order to ensure that the chassis is positioned in a balanced manner and maintains its position. A preferred embodiment of the invention is that it comprises a flame sensor connected to the four surfaces of the said housing element in a way that surrounds the battery in order to detect the flame that may occur on any surface of the battery in the minimum time.
[0021] The invention is a method that allows controlling fires caused by batteries in electric and hybrid vehicles and warning the user in situations that may cause fire, characterized in that; it comprises the following process steps:
[0022] A. Checking the data received from the flame sensor; a) Activating the triggers and detonating the capsules in case of flame detection, b) Not putting the triggers into use in the absence of flame detection,
[0023] B. Obtaining temperature and charge data of the battery from battery monitoring systems in electric and hybrid vehicles and comparing it with the determined threshold value;
[0024] C. Sending an audible and / or visual warning to the user via the screen if the temperature and charge level are above the predetermined threshold.
[0025] The mentioned process steps A and B are implemented continuously and simultaneously.
[0026] BRIEF DESCRIPTION OF DRAWINGS
[0027] A representative schematic view of the fire control system is given in Figure 1.
[0028] A flow diagram of the fire control system's operating method is given in Figure 2.
[0029] DESCRIPTION OF REFERENCE NUMBERS IN FIGURES
[0030] A. Fire control system
[0031] 1. Chassis
[0032] 2. Housing element
[0033] 3. Connection element
[0034] 4. Capsule
[0035] 5. Flame sensor
[0036] 6. Trigger
[0037] B. Battery DETAILED DESCRIPTION OF THE INVENTION
[0038] In this detailed description, the fire control system (A) which is the subject of the invention is described with examples that will not form any limiting effect only for a better understanding of the subject.
[0039] The invention relates to a computer-based fire control system (A) integrated with the battery monitoring system found in electric vehicles in order to control the fire arising from the batteries (B) in electric and hybrid vehicles and to warn the user in situations that may cause fire.
[0040] In order to monitor the status of batteries (B) in electric and hybrid vehicles and to provide charging and heating information of the battery (B) to the user, there are battery monitoring systems integrated into electric or hybrid vehicles in the present art. However, these systems only provide instantaneous battery (B) information to the user. The invention, with its structure, means that a fire that may occur in the battery (B) is detected in the minimum time, taken under control and extinguished, and also warns the user in case of overcharging or overheating.
[0041] The invention comprises a housing element (2) that ensures that the components inside the vehicle are not damaged in the event of a fire and that the battery (B) is protected from environmental factors, as seen in Figure 1. This protects the battery (B) from external impacts and factors. Furthermore, a fire that occurs in the battery (B) is prevented from spreading to other components within the vehicle, preventing the fire from spreading. The chassis (1), configured to surround the said battery (B), comprises four connection elements (3) that enable it to be connected to the housing element (2) in order to ensure that the said chassis (1) remains in a determined position without contacting the battery (B). The connection element (3) is configured to connect the four corners of the chassis (1) to the four corners of the housing element (2) in order to ensure that the chassis (1) is positioned in a balanced manner and maintains its position. The purpose of the connection element (3) is to position the chassis (1) so that it does not come into contact with the battery (B) and to connect it to the housing element (2).
[0042] The invention comprises more than one capsule (4) containing flame retardant / retardant chemicals and connected to the chassis (1) surrounding the battery (B) in order to control and extinguish the fire when a flame is detected in the battery (B). It comprises a flame sensor (5) connected to the housing element (2) to detect a fire situation that may occur in the battery (B). Preferably, there are four flame sensors (5), and the flame sensor (5) is connected to the four surfaces of the said housing element (2) so as to surround the battery (B). In this way, any flame that may occur on any surface of the battery (B) is detected in the minimum time. It comprises a trigger (6) that causes each capsule (4) to explode when the flame sensor (5) detects a flame, in order to discharge the chemical inside the said capsules (4) onto the battery (B) in order to control and extinguish the fire. The triggers (6) mentioned are connected to the chassis (1) next to each capsule (4) as seen in figure 1.
[0043] The invention comprises a screen that allows the user to receive charge and temperature data obtained from the said battery monitoring systems and to be warned audibly and / or visually when there is a temperature (over temperature) or charge (overcharging) situation above the threshold value determined in these data. This way, the user is warned in advance of a potential fire. This allows them to take timely actions, such as stopping / shutting down the vehicle, taking it to service, or leaving the vehicle. It comprises a control unit that enables the signals from the flame sensor (5) to be received and the triggers (6) to be activated when a flame is detected. The control unit is configured to communicate wirelessly with each trigger. This eliminates the need for any cables. It also enables simultaneous operation of each trigger (6).
[0044] The invention, as seen in Figure 2, aims to prevent fires that may occur in the batteries (b) in electric and hybrid vehicles and to provide rapid intervention in case of fire detection. This method comprises continuous monitoring of the battery (b), automatic intervention in fire situations and preventive warning.
[0045] First, the data from the flame sensors (5) located around the battery (B) are checked. These data received from the flame sensors (5) are evaluated. If a flame is detected, the triggers (6) positioned around the battery (B) are activated and the triggers (6) explode the capsules (4) in order to control and extinguish the fire. The capsules (4) contain fire- preventing or retardant chemicals and discharge this chemical onto the battery (B) to extinguish the flame, preventing the fire from spreading. However, when no flame is detected, the triggers (6) are not activated, thus preventing unnecessary intervention.
[0046] In addition, the method compares the temperature and charge data from the battery (B) with specified thresholds. If the temperature or charge exceeds these thresholds, the user is notified with an audible and / or visual warning on the screen. Thanks to this warning, the user can take timely precautions in the event of a potential danger; stop the vehicle, turn it off, take it to service or leave the vehicle safely.
[0047] This method offered by the invention minimizes the fire risks that may arise from batteries (B) in electric and hybrid vehicles, while providing effective protection and information to the user both before and during the fire. The feature of the method is that the data received from the flame sensors (5) are evaluated accurately and chemical intervention is carried out quickly in case of flame detection, temperature and charge values are monitored instantly and early warning is given to the user when necessary. In this way, the safety of both the vehicle and the users is ensured. The processes of checking the data received from the flame sensor (5) and obtaining the temperature and charge data of the battery (B) and comparing them with the determined threshold value are carried out simultaneously and continuously.
[0048] The scope of protection of the invention is specified in the appended claims and cannot be limited to what is described in this detailed description for illustrative purposes. Because it is clear that a person skilled in the art can come up with similar structures in the light of what is described above without deviating from the main theme of the invention.
Claims
CLAIMS1. The invention is a computer-based fire control system (A) integrated with the battery monitoring system found in electric vehicles, in order to control the fire arising from the batteries (B) found in electric and hybrid vehicles and to warn the user in situations that may cause fire, characterized in that; it comprises:• A chassis (1) configured to surround the battery (B),• A housing element (2) that ensures that the components inside the vehicle are not damaged in the event of a fire and that the battery (B) is protected from environmental factors,• A connection element (3) that ensures the connection of the chassis (1) to the housing element (2) in order to keep it in a position determined so as not to contact the battery (B),• More than one capsule (4) containing flame retardant / retardant chemicals and connected to the chassis (1) surrounding the battery (B) to ensure that the fire is controlled and extinguished when a flame is detected in the battery (B),• A flame sensor (5) connected to the enclosure element (2) to detect a fire situation in the battery (B),• A trigger (6) that causes each capsule (4) to explode in order to discharge the chemical inside the said capsules (4) onto the battery (B) in order to control and extinguish the fire when the flame sensor (5) detects the flame,• A screen that allows the user to receive charge and temperature data obtained from the aforementioned battery monitoring systems and to be warned audibly and / or visually when there is a temperature (over temperature) or charge (overcharging) situation above the threshold value determined in these data,• A control unit that receives the signals from the flame sensor (5) and activates the triggers (6) when flame is detected.
2. A fire control system (A) according to claim 1 , wherein; it comprises four connection elements (3) that enable the four corners of the chassis (1) to be connected to the four corners of the housing element (2) in order to ensure that the chassis (1) is positioned in a balanced manner and maintains its position.
3. A fire control system (A) according to claim 1 , wherein; it comprises a flame sensor (5) connected to the four surfaces of the said housing element (2) in a way that surrounds the battery (B) in order to detect the flame that may occur on any surface of the battery (B) in a minimum time.
4. The invention is a method that enables to control the fire arising from the batteries (B) in electric and hybrid vehicles and to warn the user in situations that may cause fire, characterized in that; it comprises the following process steps: A. Checking the data received from the flame sensor (5); a) Activating the triggers (6) and detonating the capsules (4) in case of flame detection, b) Not putting the triggers (6) into use in the absence of flame detection,B. Obtaining temperature and charge data of the battery (B) from battery monitoring systems in electric and hybrid vehicles and comparing it with the determined threshold value;C. Sending an audible and / or visual warning to the user via the screen if the temperature and charge level are above the predetermined threshold.
5. A method according to claim 4, wherein; the said process steps A and B are applied continuously and simultaneously.