KR100846103B1 - System and method for a fire diagnosis and automatic fire fighting of a hybrid automobile - Google Patents

Abstract

A system and a method for diagnosing and extinguishing a fire of a hybrid vehicle automatically are provided to diagnose an initial fire of an energy storage device by using a smoke sensor and to protect the vehicle and human lives by automatically operating a fire extinguishing system according to the diagnosis result. A hybrid vehicle is composed of an energy storage device such as a battery for storing regenerated energy to improve the fuel efficiency and using the stored energy again and a temperature sensor(140) detecting the temperature of the energy storage device. A system for diagnosing and automatically extinguishing a fire of the hybrid vehicle comprises a smoke sensor(120) installed at the predetermined position of the energy storage device to detect the smoke and a battery controller(150) judging whether a fire breaks out or not, by combining smoke detection information and temperature information detected in the smoke sensor and the temperature sensor and automatically operating an automatic fire extinguisher(130) when a fire breaks out.

Description

System and method for a fire diagnosis and automatic fire fighting of a hybrid automobile

1 is a schematic structural diagram of a typical hybrid vehicle system.

Figure 2 is a schematic structural diagram showing a smoke sensor installation position of the fire diagnosis and automatic fire extinguishing system of a hybrid vehicle according to the present invention.

Figure 3 is a block diagram showing the configuration of the fire diagnosis and automatic fire extinguishing system of a hybrid vehicle according to the present invention.

Figure 4 is a flow chart showing a fire diagnosis and automatic fire extinguishing method of a hybrid vehicle according to the present invention.

Explanation of symbols for the main parts of the drawings

110: energy storage device (battery) 120: smoke sensor

130: automatic fire extinguisher 140: temperature sensor

150: battery controller

The present invention relates to a fire diagnosis and automatic fire extinguishing of a hybrid vehicle, and more particularly, to diagnose an initial fire of an energy storage device using a smoke sensor, and to automatically operate a fire extinguishing system using the diagnosis result, thereby providing an initial fire. The present invention relates to a fire diagnosis and automatic fire extinguishing system of a hybrid vehicle and a method thereof for protecting a vehicle and human life by suppression.

In general, a hybrid vehicle is a vehicle that maximizes its efficiency in terms of energy use through a hybrid effect. Hybrid technology utilizes the power of the existing internal combustion engine and electric motor to assist the electric motor in areas with low engine efficiency, and converts it into electric energy using the electric motor when braking or surplus power occurs. Energy is stored and used in energy storage devices such as batteries to reduce fuel consumption. In addition, fuel consumption is reduced by using the function of stopping the engine in the stopped state and starting the engine by the electric motor again when the vehicle starts.

The structure of a general hybrid vehicle system is disclosed in FIG. 1.

As shown, the hybrid vehicle is driven by the internal combustion engine 1 and the electric motor 2. The internal combustion engine 1 is driven using fossil fuel, the electric motor 2 is driven using the power of the high voltage storage battery 3, the engine is stopped when the vehicle is stopped, and the battery is stored at the start of the vehicle. The electric motor 2 is driven using the electricity of (3) to start the engine.

In order to improve fuel economy in hybrid technology, energy storage such as batteries for storing renewable energy and reusing it if necessary is essential. These energy storage devices are quite dangerous, with voltages and high currents of hundreds of volts, and above all, are vulnerable to fire.

As is well known, the purpose of hybrid technology is to reduce fuel consumption and emissions, a key element in achieving this goal and the technology is an energy storage device. These energy storage devices are characterized by high voltage and high current to improve their efficiency and to supply sufficient energy for the system.

As it uses high voltage and high current, safety is most important. Particularly in the case of a high capacity battery, there is a risk of fire and explosion due to overcharge and overcurrent, and there is a significant risk to vehicle and system safety in the event of a fire due to a malfunction and abnormal operation of a controller that controls the energy storage device.

In order to eliminate this risk, conventionally, a fire is detected using a temperature sensor, a current, and a voltage sensor installed in an energy storage device, and when a fire is detected, a fire extinguisher is operated.

However, such a conventional fire detection and extinguishing method is often unable to protect the vehicle and the human life due to lack of accuracy in initial diagnosis of the fire by the temperature sensor and the current / voltage sensor. The role was insignificant, resulting in frequent vehicle and human injury.

Therefore, the present invention has been proposed to solve various problems arising in the fire detection and extinguishing method applied to the conventional hybrid vehicle as described above,

It is an object of the present invention to accurately diagnose fires due to abnormal operation of energy storage devices or external factors, and to automatically diagnose fires and to automatically extinguish fires according to the diagnosis results to protect drivers and vehicles. A digestive system and method thereof are provided.

Another object of the present invention is to diagnose the initial fire of the energy storage device using the smoke sensor, and to automatically operate the fire extinguishing system using the diagnosis result, the fire of the hybrid vehicle to protect the vehicle and life by the initial fire suppression To provide a diagnostic and automatic fire extinguishing system and method thereof.

Fire diagnosis and automatic fire extinguishing system of the hybrid vehicle according to the present invention for achieving the above object is,

In the fire diagnosis and automatic fire extinguishing system of a hybrid vehicle having an energy storage device such as a battery for storing the recycled energy to improve fuel efficiency and reuse it if necessary and a temperature sensor detecting the temperature of the energy storage device,

A smoke sensor installed at an arbitrary position of the energy storage device and detecting smoke generation;

And a combination of smoke detection information and temperature information detected by the smoke sensor and the temperature sensor, respectively, to determine whether a fire has occurred, and as a result of the determination, a battery controller for automatically operating an automatic fire extinguisher.

Wherein the smoke sensor is installed in the inlet and outlet ducts for cooling the battery of the energy storage device and the central portion of the energy storage device, the amount of light received by the detection of scattered light by the smoke particles in the light or by passing the smoke passes Is detected and output as information for judging whether smoke has occurred.

Fire diagnosis and automatic fire extinguishing method of the hybrid vehicle according to the present invention for achieving the above object,

In order to improve fuel economy, an energy storage device such as a battery for storing and reused energy if necessary and a temperature sensor for detecting the temperature of the energy storage device and a smoke sensor mounted at an arbitrary position of the energy storage device for detecting smoke In the fire diagnosis and automatic fire extinguishing method of a hybrid vehicle having a smoke sensor,

Driving the energy storage controller and detecting temperature and smoke of the energy storage device;

Analyzing the detected temperature and smoke information to determine if any one is abnormal and stopping the fire diagnosis and automatic fire extinguishing system;

If the detected temperature is abnormal and smoke is detected, it is determined that a fire occurs and automatically extinguish the fire by driving a fire extinguisher.

According to the present invention, when a fire occurs due to abnormal operation or external factors of the energy storage device, it is accurately diagnosed, and according to the diagnosis result, there is an advantage that can automatically suppress the fire to protect the driver and the vehicle.

Hereinafter, described in detail with reference to the accompanying drawings a preferred embodiment of the present invention. If it is determined that the detailed description of the known function or configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

2 is a schematic structural diagram showing a smoke sensor installation position of a fire diagnosis and automatic fire extinguishing system of a hybrid vehicle according to the present invention, and FIG. 3 is a block diagram showing a configuration of a fire diagnosis and automatic fire extinguishing system of a hybrid vehicle according to the present invention. , The energy storage device 110, the smoke sensor 120, the automatic fire extinguisher 130, the temperature sensor 140, the battery controller 150.

The energy storage device 110 is a battery for storing and re-using the regenerated energy in order to improve fuel economy.

The smoke sensor 120 is installed at an arbitrary position of the energy storage device 110 to detect smoke generation. The smoke sensor 120 is installed in the inlet and outlet ducts for cooling the battery of the energy storage device 110 and the central portion of the energy storage device, and detects scattered light by smoke particles in the light or smoke passes through By detecting the amount of light received to be converted is output as information for judging the occurrence of smoke.

The temperature sensor 140 detects the temperature of the energy storage device 110.

The battery controller 150 determines whether a fire has occurred by combining smoke detection information and temperature information respectively detected by the smoke sensor 120 and the temperature sensor 140, and automatically determines an automatic fire extinguisher ( 130) to operate.
Automatic fire extinguisher 130 is a device that automatically releases the drug in the state that the safety pin is plugged in without a person operating directly, the drug is automatically released like a normal sprinkler or automatic diffusion fire extinguisher to turn off the fire or slow down the spread of the fire It significantly reduces the damage to life and property. In general, a well-known Halon fire extinguisher for automobiles may be applied, or an electronic solenoid head capable of operating the head of the drug discharge port by an automatic operation signal (electrical output signal of the battery controller) may be used.
In the "fire diagnosis and automatic fire extinguishing system of the hybrid vehicle" according to the present invention configured as described above, first, a plurality of smoke sensors 120 are mounted on the inlet duct, the outlet duct and the central portion of the energy storage device 110, respectively.

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In general, since air for battery cooling flows from the inlet duct to the outlet duct, when a fire occurs, smoke is mainly detected by smoke sensors mounted at the outlet side and the center portion. In case of smoke sensor installed in the inlet duct, it is used to verify that there is no fire in the energy storage device by detecting smoke when it enters the outside environment.

The smoke sensor 120 detects scattered light due to smoke particles in the light or detects the amount of received light converted by the passage of the smoke, and outputs the information to determine whether smoke is generated, and uses a known smoke sensor. .

The battery controller 150 analyzes the smoke detection information of the smoke sensor 120 and the detected temperature of the temperature sensor 140, and determines that it is a fire only when the temperature is above a set temperature and smoke is detected. The fire extinguisher 130 is operated to control fire extinguishing.

4 is a flowchart showing a "fire diagnosis and automatic fire extinguishing method for a hybrid vehicle" according to the present invention, where S represents a step.

As shown therein, driving the energy storage device controller 150 and detecting the temperature and the smoke of the energy storage device 110 (S101 to S105); Analyzing the detected temperature and smoke information to determine if any one is abnormal and stopping the fire diagnosis and automatic fire extinguishing system (S107 to S113); When the detected temperature is abnormal and smoke is detected, it is determined that the fire is generated and automatically extinguish the fire by driving the automatic fire extinguisher 130 (S117 to S121).

In this way, the "fire diagnosis and automatic fire extinguishing method for a hybrid vehicle" according to the present invention first drives the energy storage controller 150 in steps S101, and in step S103 and step S105, the temperature sensor 140 and the smoke sensor ( The temperature and smoke of the energy storage device 110 are detected by driving 120.

Subsequently, it is checked whether the temperature detected in step S107 is normal, and if it is normal, that is, if the temperature is lower than a predetermined temperature, the process moves to step S109 to determine whether smoke has occurred.

If no smoke has occurred as a result of this determination, the process moves to the above-described step S103. Otherwise, if smoke is detected, it is determined as an error of the fire diagnosis and automatic fire extinguishing system of the hybrid vehicle in step S111, and the system in step S113. Stops driving. That is, if only one abnormality is analyzed by analyzing the detected temperature and smoke information, it is judged as an error of the system and stops the fire diagnosis and automatic fire extinguishing system.

On the other hand, if the detected battery temperature is not normal, i.e., if the temperature is above the set temperature, check whether the smoke has occurred in step S115, and if the smoke is not detected, go to step S111 described above to determine a system error, It will be stopped (113).

On the contrary, if the detected temperature is abnormal, that is, the temperature is higher than the set temperature and smoke is detected, it is determined that a fire has occurred by moving to step S117, and the fire extinguisher 130 is automatically driven by moving to step S119. It will be suppressed. Thereafter, the process moves to step S121 to stop the operation of the fire diagnosis and automatic fire extinguishing system.

In other words, when smoke is detected and the temperature of the battery rises above the set temperature, it is determined as a fire, and an automatic fire extinguisher is operated to extinguish the fire initially.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

According to the present invention, when a fire occurs due to abnormal operation or external factors of the energy storage device, it is possible to accurately diagnose the fire and automatically extinguish the fire according to the diagnosis result, thereby protecting the driver and the vehicle. have.

In addition, by using a smoke sensor and a temperature sensor to diagnose the fire of the energy storage device, there is an advantage to improve the accuracy of the fire diagnosis.

Claims (4)

1. A hybrid vehicle having an energy storage device such as a battery for storing renewable energy to improve fuel efficiency and reuse when necessary, and a temperature sensor detecting the temperature of the energy storage device. A smoke sensor installed at an arbitrary position of the energy storage device and detecting smoke generation; And a battery controller for determining whether a fire has occurred by combining smoke detection information and temperature information respectively detected by the smoke sensor and the temperature sensor, and automatically operating an automatic fire extinguisher when diagnosed as a fire. Automobile fire diagnosis and automatic fire extinguishing system. The fire diagnosis and automatic fire extinguishing system of a hybrid vehicle according to claim 1, wherein the smoke sensor is installed at an inlet duct and an outlet duct for cooling the battery of the energy storage device, and a central portion of the energy storage device, respectively. According to claim 1 or 2, wherein the smoke sensor detects the scattered light by the smoke particles in the light or detects the amount of light converted by the passing of the smoke and outputs the information for judging the occurrence of smoke Fire diagnosis and automatic fire extinguishing system of a hybrid vehicle, characterized in that. In order to improve fuel economy, an energy storage device such as a battery for storing and reused energy if necessary and a temperature sensor for detecting the temperature of the energy storage device and a smoke sensor mounted at an arbitrary position of the energy storage device for detecting smoke In the fire diagnosis and automatic fire extinguishing method of a hybrid vehicle having a smoke sensor, Driving the energy storage controller and detecting temperature and smoke of the energy storage device; Analyzing the detected temperature and smoke information to determine if any one is abnormal and stopping the fire diagnosis and automatic fire extinguishing system; If the detected temperature is above the set temperature and the smoke is detected, the fire diagnosis and automatic fire extinguishing method of a hybrid vehicle, characterized in that it comprises the step of determining that the fire occurs and automatically extinguish the fire by driving a fire extinguisher.

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