KR200144405Y1 - Passenger protection device of car - Google Patents

Abstract

The present invention notifies the rear vehicle that a collision accident has occurred in conjunction with an airbag system when a collision accident occurs in a vehicle equipped with an airbag system, thereby preventing secondary chain collision accidents, A passenger protection device.

Its configuration is exposed to the outside so that the driver of the rear vehicle can recognize the accident of the front vehicle when the trunk 60 is opened, and one side of the upper edge is bound to the bottom of the trunk lid 42 for opening and closing the trunk 60. The tripod 44 and the warning light 44 mounted at the center of the tripod 44 turn on based on the electrical signal generated when the airbag 2 is deployed, so that the driver of the rear vehicle can recognize the accident of the front vehicle even at night. The tripod 44 having the alarm light driver 40 electrically connected to the ignition judgment and drive circuit part 15 and the alarm light 44 lit by the alarm light driver 40 at its center is mounted on the airbag 2. The trunk 60 is opened based on an electrical signal generated when the airbag 2 is deployed to be exposed to the outside during deployment, and the trunk opening / closing driving unit 41 is electrically connected to the ignition decision and driving circuit unit 15. It is done.

Description

Passenger protection device of car

The present invention relates to a passenger protection device of a vehicle, and in particular, in a vehicle equipped with an airbag system, by operating in conjunction with the airbag system, in addition to preventing a chain collision following a primary collision, rapid follow-up measures for passenger protection are provided. It relates to a passenger protection device of a vehicle made possible.

In recent years, with the development of sensor technology and control technology using the same, a system has been developed and mounted on a vehicle to facilitate driving as well as safety.

Among them, cruise system or auto navigation system can be used for the driver's convenience, and electronic seat belt, air bag system, forward collision prevention system, and side collision prevention system can be used for the driver's safety. System etc. can be mentioned.

Among these, an air bag system detects an impact during a collision of a vehicle by a sensor installed in a vehicle body and inputs it to an electronic control unit (hereinafter, simply referred to as ECU). It is determined whether or not it is necessary to deploy the airbag according to the method. As a result of this determination, when it is necessary to deploy the airbag, the airbag is inflated by outputting an electric signal to the inflator installed in the steering wheel to burn the gas generating agent.

Figure 1a is a cross-sectional view showing the installation structure of the airbag and the inflator in a general airbag system, Figure 1b is a detailed cross-sectional view of the inflator in Figure 1a. As shown in FIG. 1, the airbag 2, which is usually made of nylon, is embedded inside the steering wheel pad 1 in a folded state, and is coupled to the inflator 3. Furthermore, a squib (4: a small amount of gunpowder is contained around the electric heater wire) is mounted at the center of the inflator 3, and when the current flows momentarily through the squib 4, the electric heater generates heat. Is ignited by gunpowder. This becomes an ember, and the engine 7 is ignited, and then a gas generating agent (a mixture of 5: azides and molybdenum dioxides) is burned to generate a large amount of nitrogen gas in an instant.

The nitrogen gas thus generated is then cooled through the filter 6 and enters the airbag 2, whereby the airbag 2 breaks the opening of the pad 1 installed in the steering wheel and expands to the outside, thereby allowing the passenger's head and chest to expand. To protect. The volume of the airbag 2 is about 60 (1), and an exhaust hole is provided on the outer surface of the airbag 2 on the steering shaft side, thereby effectively releasing the internal pressure of the airbag 2 to smoothly stop the impact of the passenger. As such, the airbag system performs an excellent job of primarily protecting the driver's life in the event of a vehicle crash.

However, there is a possibility that a chain collision with a rear vehicle may occur in a state in which the driver cannot recover consciousness due to the impact of a collision. Conventionally, a device capable of preventing such a secondary chain collision in advance is not provided. There was a problem.

Furthermore, since the first aid after a crash accident is most important, there is no conventional device for notifying the outside of a crash accident, even though there is no problem in life, the driver may fall into a state of being unable to recover.

The present invention was devised to solve the above-mentioned problems, and in case a collision accident occurs in a vehicle equipped with an airbag system, it prevents a chain collision accident with a rear vehicle by informing the outside that a collision accident has occurred in association with the airbag system. In addition to providing a passenger protection device for a vehicle that enables rapid follow-up.

Figure 1a is a cross-sectional view showing the installation structure of the airbag and the inflator in a general airbag system.

FIG. 1b is a detailed cross-sectional view of the inflator in FIG. 1a.

2 is an electrical block diagram of a passenger protection device for a vehicle according to the present invention.

3 is a perspective view schematically showing the installation structure of the tripod according to the present invention.

4 is a view illustrating the use of a passenger protection device according to the present invention.

* Explanation of symbols for main parts of the drawings

1: steering wheel pad 2: airbag

3: inflator 4: squib

5: gas generator 6: filter

7: ENHANCER 10: ELECTRONIC CONTROL UNIT

11: memory circuit 12: analysis circuit

13: Seping sensor 14: Center G sensor

15: ignition judgment and driving circuit section 20: main battery

21,22: Front G sensor 30: Secondary battery

40: alarm light drive unit 41: trunk opening and closing drive unit

42: trunk lid 43: lock mechanism

44: tripod 50: alarm light

51: solenoid for opening and closing the trunk 60: generator circuit

In order to achieve the above object, a passenger protection device of a vehicle of the present invention includes an ignition determination and driving circuit unit which detects an impact during a vehicle collision and outputs an electrical signal to the inflator so that the airbag is deployed according to the strength of the impact, and at the rear of the vehicle. In a vehicle equipped with a trunk, a tripod is exposed to the outside so that the driver of the rear vehicle can recognize the accident of the front vehicle when the trunk is opened, and one side of the upper edge is bound to the bottom of the trunk lid for opening and closing the trunk; And an alarm lamp electrically connected to the ignition determination and driving circuit unit so that the driver of the rear vehicle can recognize the accident of the front vehicle even at night by turning on the alarm lamp mounted at the center of the tripod based on an electrical signal generated when the airbag is deployed. The alarm light which is turned on by the driver and the alarm light driver is And a trunk opening / closing drive part which opens the trunk based on an electrical signal generated when the airbag is deployed so that the tripod mounted on the part is exposed to the outside when the airbag is deployed, and is electrically connected to the ignition decision and driving circuit part. .

In addition, when the main battery is damaged, an input end is connected to the generator circuit part so that power is supplied to the trunk opening / closing drive part and the alarm light driving part and the ignition decision and driving circuit part, and an output end thereof is the trunk opening and closing drive part and the alarm light driving part and the ignition decision and driving part. It is characterized in that the auxiliary battery is electrically connected to the circuit portion and is installed on the rear side of the vehicle body to prevent damage due to the collision.

In the above-described configuration, it is preferable to install the auxiliary battery on the rear side of the vehicle body which is less susceptible to damage due to collision.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the passenger protection device of the vehicle of the present invention.

2 is an electrical block diagram of a passenger protection device for a vehicle according to the present invention.

As shown in FIG. 2, a passenger protection device of a vehicle of the present invention is constructed based on an airbag system. First, a general airbag system includes a main battery 20 functioning as a power source of the system, and overall operation of the system. The ECU 10 to control, the squib 4 which consists of an electric heater wire, and one each at the front end part of the front air front upper part of a vehicle body are detected, and the ECU 10 detects the generated deceleration at the time of low speed collision. It consists of a front G sensor 21, 22, and a warning lamp 23 to warn of failure of the airbag system.

In the above-described configuration, the ECU 10 always monitors whether there is an abnormality in the memory circuit unit 11 or the airbag system in which the fault code corresponding to various abnormal operations of the airbag system is stored, and monitors the abnormality through the warning lamp 23. Analysis circuit unit 12 for notifying and storing the fault code in memory circuit unit 11, center G sensor 14 for detecting impact acceleration, and a separator sensor that is an acceleration sensor that sends an on-signal when an off state or deceleration is always applied ( 13) and the ignition determination and driving circuit unit for determining whether to deploy the airbag 2 in consideration of the signals provided by the center G sensor 14, the stepping sensor 13, the front G sensor 21, 22 It consists of 15 pieces.

On the other hand, in the passenger protection device according to the present invention, when the warning light 44 and the tripod 44 to inform the outside that there is a crash of the vehicle, the airbag system and the warning light (when the main battery 20 due to the collision of the vehicle ( 44) and an auxiliary battery 30 for supplying electric power necessary for the operation of the solenoid 51 for opening and closing the trunk (hereinafter simply referred to as solenoid), and the alarm lamp 44 and the solenoid based on a signal provided from the ECU 10. An emergency light drive unit 40 and a trunk opening / closing drive unit 41 for driving 51 are further provided. Here, the auxiliary battery 30 is connected to the generator circuit portion 60 of the vehicle is configured to store enough electricity at all times, and installed in the lower portion of the trunk or the rear seat to receive less risk of damage due to collision of the vehicle Is good. In addition, it is preferable to use a motorcycle battery having a small capacity for cost and space saving.

3 is a perspective view schematically showing the installation structure of the tripod according to the present invention, Figure 4 is an example of the use of the passenger protection device according to the present invention.

As shown in FIGS. 3 and 4, in the passenger protection device of the present invention, the tripod 44 is installed by hanging on the trunk lid 42 in a position that is easy to recognize from the outside when the trunk is opened. Further, the alarm lamp 44 as described above is mounted at the center of the tripod 44.

In addition, the trunk lid 42 for opening and closing the trunk 60 is fastened to the vehicle body by the hinge portion 46 for facilitating the opening and closing of the trunk lid 42, so as to control the opening and closing of the trunk 60. The lock mechanism 43 is provided in the trunk lid 42, and the lock striker 45 is provided in the vehicle body. At this time, the hinge part 46 opens the trunk lid 42 upward when the locking mechanism 43 and the lock striker 45 are released.

Hereinafter, the operation of the passenger protection device for a vehicle of the present invention having the above-described configuration will be described in detail with reference to FIGS. 2 to 4.

First, when the vehicle collides at a low speed in front of the vehicle, the deceleration is sensed at the front part of the vehicle body, that is, the front G sensors 21 and 22, whereas when the vehicle collides at a high speed, the front G sensor 21, The deceleration is generated simultaneously at both sides of the 22 and the center G sensor 14.

Next, the ECU 10 calculates and processes the deceleration waveform and outputs an ignition signal at a necessary timing when the airbag needs to be deployed. There are various methods for determining the logic. As an example, there is logic for integrating the deceleration while the deceleration is over a constant value and sending an ignition signal to the squib 4 when the speed reaches a constant value.

On the other hand, since the separation sensor 13 responds only to the deceleration at the time of the front collision of the vehicle, even if a detection signal is input from the front G sensors 21 and 22 or the center G sensor 14, the input of the separation sensor 13 is input. If this is not accompanied, the ECU 10 determines that it is not a collision and does not give an ignition signal.

As described above, when the ECU 10 finally determines that there is a forward collision, the ECU 10 outputs an ignition signal to the squib 4 to deploy the airbag 2, and at the same time or after a very short time, the warning light driver 40 And a control signal is also output to the trunk opening / closing drive section 41 to light the alarm lamp 44 and simultaneously operate the solenoid 51. Accordingly, the trunk lid 42 locked by the lock mechanism 43 and the lock striker 45 opens the trunk lid 42 due to the release operation of the lock striker 45, thereby bringing the tripod 44 to the outside. Exposed. Therefore, the vehicle coming to the rear can be aware that there is a crash accident in front of the driver can be careful driving, and further it is possible to quickly take necessary emergency measures or evacuation measures for the driver in the accident.

The present invention is not limited to the above-described embodiment, and various modifications can be made within the range permitted by the technical idea of the present invention.

According to the passenger protection device of a vehicle of the present invention as described above, when a collision accident occurs in a vehicle equipped with an airbag system, the second vehicle is notified by informing the rear vehicle that the collision accident occurred in association with the deployment of the airbag system. In addition to preventing collisions, it has the effect of enabling rapid follow-up.

Claims (2)

An ignition determination and driving circuit unit 15 for detecting an impact during a vehicle collision and outputting an electrical signal to the inflator 3 so that the airbag 2 is deployed according to the intensity of the impact, and a vehicle having a trunk 60 at the rear of the vehicle. In the opening of the trunk 60, the driver of the rear vehicle is exposed to the outside to recognize the accident of the front vehicle, and one side of the upper edge is located on the bottom surface of the trunk lid 42 for opening and closing the trunk 60. The bound tripod 44 and the warning lamp 44 mounted at the center of the tripod 44 are turned on based on the electrical signal generated when the airbag 2 is deployed, so that the driver of the rear vehicle may not accidently accident the vehicle ahead at night. An alarm lamp driver 40 electrically connected to the ignition determination and driving circuit unit 15 and the alarm lamp 44 which is lit by the alarm lamp driver 40 so as to be recognized are mounted on the center thereof. The trunk 60 is opened based on an electrical signal generated when the airbag 2 is deployed so that the 44 is exposed to the outside when the airbag 2 is deployed, and is electrically connected to the ignition determination and driving circuit unit 15. Passenger protection device for a vehicle, characterized in that consisting of the trunk opening and closing drive (41). According to claim 1, When the main battery 20 mounted on the vehicle breaks the input unit so that the power supply to the trunk opening and closing drive unit 41 and the alarm lamp driving unit 40 and the ignition determination and driving circuit unit 15, the generator circuit unit ( 60 is connected to the trunk opening / closing drive section 41 and the alarm lamp driving section 40 and the ignition determination and driving circuit section 15, and the output end thereof is installed at the rear side of the vehicle body to prevent damage due to a collision. Passenger protection device for a vehicle, characterized in that consisting of a secondary battery (30).