KR100476570B1 - Device for controlling electronic airbag of frame body car - Google Patents

Abstract

The present invention relates to an electronic airbag control device for a frame body vehicle,

In particular, the right local sensor 100 and the left local sensor 200 for detecting an electric collision signal in the direction that the vehicle travels; A third communication interface 310 which receives and outputs a collision detection signal output from the right local sensor 100 or the left local sensor 200; A sensing sensor 320 for detecting a mechanical collision of the vehicle and outputting an on signal; After inputting the collision detection signal input through the third communication interface 310, and determining whether the collision detection signal input according to the on / off operation of the sapping sensor 320 is electrical noise or mechanical collision, mechanical collision A third micom 330 for outputting an airbag ignition signal; After inputting the airbag ignition signal, it characterized in that it comprises an ignition unit 340 for inflating the airbag, the present invention is equipped with a plurality of electronic local sensors on the frame of the frame body vehicle to detect the electrical collision After the transmission to the microcomputer of the central unit, the microcomputer of the central unit analyzes the result of the detection and mechanical collisions detected by the sapping sensor, and then determines the airbag deployment conditions to determine the multi-point detection system using multiple collision sensors. Compared to determine the optimal airbag deployment conditions, there is an effect that can reduce the manufacturing cost by not using an expensive collision sensor.

Description

Electronic airbag control device for frame body vehicle {DEVICE FOR CONTROLLING ELECTRONIC AIRBAG OF FRAME BODY CAR}

The present invention relates to an apparatus for controlling an air bag of a vehicle, and in particular, a plurality of electronic local sensors are mounted on a frame of a frame body vehicle to detect an electric collision and then to a center. And an electronic airbag control apparatus for a frame body vehicle for determining an airbag deployment condition by transmitting to a microcomputer of a device, the microcomputer judges a result of detection and a mechanical collision detected by a sapping sensor. will be.

Conventionally, when an electronic airbag control device is mounted on a frame body vehicle such as a Jeep and a pick-up truck, it is transmitted through a frame as compared to a uni-body vehicle such as a passenger car. Since the collision signal is very large, it is difficult to properly determine the airbag deployment condition with the electronic single sensing system, and thus, there is a problem in that performance is degraded because it operates even when electrical noise is generated.

Therefore, in the related art, a multi-point detection system using one to two collision sensors and a central control unit in a frame body vehicle has been adopted and used. However, since the price of the collision sensor is very expensive, there is a problem that the manufacturing unit price increases.

The present invention is to solve the above-mentioned conventional problems, by mounting a plurality of electronic local sensors on the frame of the frame body vehicle detects an electric collision and transmits to the microcomputer of the central unit, the microcomputer of the central unit is detected The present invention provides an electronic airbag control apparatus for a frame body vehicle and a method of controlling the airbag deployment condition by determining and analyzing the mechanical collision detected by the sapping sensor.

In order to achieve the above object, the electronic airbag control apparatus of the frame body vehicle of the present invention is mounted on one side of the frame right side of the vehicle, and detects an electric collision signal in a direction in which the vehicle travels, and then receives a collision detection signal. A right local sensor for outputting; A left local sensor mounted on one side of a frame left side of the vehicle to detect an electric collision signal in a direction in which the vehicle proceeds, and then output a collision detection signal; A third communication interface unit mounted in the central device to receive and output a collision detection signal output from the right local sensor or the left local sensor; A sapping sensor mounted in the central device and configured to output an ON signal after detecting a mechanical collision of the vehicle; It is mounted in the central unit, inputs a collision detection signal input through the third communication interface, and whether the collision detection signal input according to the ON / OFF operation of the sapping sensor is electrical noise or mechanical collision A third microcomputer for outputting an airbag ignition signal in the case of a mechanical collision after the determination; And an ignition unit mounted in the central unit and configured to inflate the airbag after inputting the airbag ignition signal output from the third microcomputer.

Hereinafter, the above-described contents will be described in detail through an embodiment according to the present invention.

1 and 2, the first electronic acceleration sensor 110 mounted in the right local sensor 100 detects an electric collision of a vehicle and transmits a collision signal to the first microcomputer 120. The first microcomputer 120 inputs a collision signal output from the first electronic acceleration sensor 110 to determine whether the input collision signal is a minor collision of the vehicle, and if it is not a minor collision, After outputting the collision detection signal to the first communication interface 130, the first communication interface 130 inputs the collision detection signal output from the first microcomputer 110, the central device 300 And transmits to the third communication interface 310 mounted therein.

On the other hand, the second electronic acceleration sensor 210 mounted in the left local sensor 200 detects an electric collision of the vehicle and outputs a collision signal to the second microcomputer 220, the second microcomputer 220 is The collision signal output from the second electronic acceleration sensor 210 is input to determine whether the collision signal is a minor collision of the vehicle. If the collision signal is not a minor collision, the collision detection signal is transmitted to the second communication interface unit 230. The second communication interface 230 inputs the collision detection signal output from the second microcomputer 220, and then passes to the third communication interface 310 mounted in the central apparatus 300. Send.

In addition, the third communication interface 310 mounted in the central device 300 receives the collision detection signal output from the right local sensor 100 or the left local sensor 200 and then receives the third microcomputer 330. After detecting the mechanical collision of the vehicle, the sapping sensor 320 outputs an on signal to the third microcomputer 330.

In this case, the third microcomputer 330 inputs the collision detection signal input through the third communication interface 310, and the collision detection signal input by the on / off operation of the sapping sensor 320 is electrically transmitted. After determining whether it is noise or mechanical collision, in case of mechanical collision, the airbag ignition signal is output to the ignition unit 340, and the ignition unit 340 inputs the airbag ignition signal output from the third microcomputer 330. Then, this embodiment is constituted by inflating the airbag.

The collision signal output from the first electronic acceleration sensor 110 and the second electronic acceleration sensor 210 is input from the right local sensor 100 or the left local sensor 200, and is input from the third microcomputer 330. The reason for not receiving is to eliminate problems such as noise in communication since there is a distance between the respective sensors 110 and 210 and the third microcomputer 330, and the third microcomputer 33 prevents a false positive by leaving only the aforementioned functions. To do so.

Hereinafter, an operation process of the electronic airbag control apparatus of the frame body vehicle configured as described above will be described with reference to FIGS. 1, 2, 3, 4, and 5.

First, the right local sensor 100 and the left local sensor 200 are mounted on the left and right sides of the frame 1 of the vehicle, as shown in FIG. 2, and the central unit 300 is a cross member 2. It is mounted on one side of the center.

Meanwhile, when an electric collision signal is detected through the right local sensor 100, the first electronic acceleration sensor 110 mounted in the right local sensor 100 detects an electric collision of the vehicle to detect a collision signal. Is output to the first microcomputer 120 (S1).

In this case, the first microcomputer 120 inputs a collision signal output from the first electronic acceleration sensor 110 to determine whether the input collision signal is a minor collision of the vehicle. The signal is output to the third communication interface 310 (S2).

In addition, the third communication interface unit 310 inputs the collision detection signal output from the first microcomputer 110, and then inputs the collision detection signal to the third communication interface unit mounted in the central device 300. Transmit to 310 (S3).

On the other hand, when an electric collision signal is detected through the right local sensor 100, the second electronic acceleration sensor 210 mounted in the left local sensor 200 detects the electric collision of the vehicle and the collision signal Is output to the second microcomputer 220 (S1).

In this case, the second microcomputer 220 inputs a collision signal output from the second electronic acceleration sensor 210 to determine whether the input collision signal is a minor collision of the vehicle. The signal is output to the second communication interface unit 230 (S2).

In addition, the second communication interface 230 inputs a collision detection signal output from the second microcomputer 220 and transmits it to the third communication interface 310 mounted in the central apparatus 300. (S3).

Meanwhile, the third communication interface 310 mounted in the central device 300 receives the collision detection signal output from the right local sensor 100 or the left local sensor 200, and then receives the received collision detection signal. The signal is output to the third microcomputer 330 (S4).

In addition, the sapping sensor 320 detects the occurrence of a mechanical collision of the vehicle, and then outputs an on signal indicating that the mechanical collision has occurred to the third microcomputer 330.

At this time, the third microcomputer 330 inputs the collision detection signal received through the third communication interface 310, and determines whether the on signal is output from the sapping sensor 320 (S5), When the on-signal is not output from the sapping sensor 320, the collision detection signal input through the third communication interface 310 is determined as electrical noise and does not inflate the airbag.

On the other hand, the third microcomputer 330 inputs the collision detection signal received through the third communication interface 310, and determines whether the on signal is output from the sapping sensor 320 (S5), When the on signal is output from the sapping sensor 320, it is determined that the collision detection signal input through the third communication interface 310 is a mechanical collision, and outputs an airbag ignition signal to the ignition unit 340. .

In addition, the ignition unit 340 inputs the airbag ignition signal output from the third microcomputer 330 to inflate the airbag as shown in FIG. 5, thereby preventing user's casualty due to mechanical collision. (S6).

In addition, the ignition determination logic of the present invention described above will be described with reference to FIG.

First, when a collision detection signal is output from only one of the right local sensor 100 or the left local sensor 200, a collision detection signal is applied by the or gate 10, and the collision detection is performed through the or gate 10. After the signal is applied, when the on signal is output from the sapping sensor 320, the airbag is ignited by the AND gate 20.

On the other hand, after the collision detection signal is applied by the or gate 10, when the on signal is not output from the sapping sensor 320, the air bag is not ignited by the end gate 20.

As described above, the electronic airbag control apparatus and the control method of the frame body vehicle according to the present invention are equipped with a plurality of electronic local sensors on the frame of the frame body vehicle to detect an electric collision and transmit it to the microcomputer of the central apparatus, The microcomputer of the device analyzes the detected results and mechanical collisions detected by the sapping sensor to determine the airbag deployment conditions, thereby determining the optimal airbag deployment conditions compared to the multi-point detection system using multiple collision sensors. In addition, there is an effect that can reduce the manufacturing cost by not using an expensive collision sensor.

1 is a functional block diagram showing the configuration of an electronic airbag control apparatus of a frame body vehicle according to an embodiment of the present invention;

FIG. 2 is a plan view showing a state in which an electronic airbag control apparatus of a frame body vehicle according to FIG. 1 is mounted on a frame of a vehicle;

3 is a view showing an ignition determination logic circuit in the electronic airbag control apparatus of a frame body vehicle according to FIG. 1;

4 is a control flowchart illustrating an operation process of an electronic airbag control apparatus of a frame body vehicle according to FIG. 1;

FIG. 5 is a view showing an inflated airbag through an electronic airbag control apparatus of a frame body vehicle according to FIG. 1.

<Explanation of symbols for the main parts of the drawings>

100: right local sensor 110: first electronic acceleration sensor

120: first microcomputer 130: first communication interface unit

200: left local sensor 210: second electronic acceleration sensor

220: second microcomputer 230: second communication interface unit

300: central unit 310: third communication interface unit

320: sapping sensor 330: third micom

340: ignition unit

Claims (3)

A right local sensor mounted on one side of the frame right side of the vehicle to detect an electric collision signal in a direction in which the vehicle proceeds, and then output a collision detection signal; A left local sensor mounted on one side of a frame left side of the vehicle to detect an electric collision signal in a direction in which the vehicle proceeds, and then output a collision detection signal; A third communication interface unit mounted in the central device to receive and output a collision detection signal output from the right local sensor or the left local sensor; A sapping sensor mounted in the central apparatus and configured to detect a mechanical collision of the vehicle and then output an on signal; It is mounted in the central device, inputs the collision detection signal input through the third communication interface, and determines whether the collision detection signal input according to the on / off operation of the sapping sensor is electrical noise or mechanical collision, and then mechanical A third micom outputting an airbag ignition signal in the event of a collision; And an ignition unit mounted in the central unit to expand the airbag after inputting the airbag ignition signal output from the third microcomputer. The electronic device of claim 1, wherein the right local sensor comprises: a first electronic acceleration sensor configured to detect an electric collision of a vehicle and output an analog collision signal; Is connected to a signal output terminal of the first electronic acceleration sensor, inputs a collision signal output from the first electronic acceleration sensor, determines whether the input collision signal is a minor collision, and detects a collision if it is not a minor collision. A first microcomputer for outputting a signal; And a first communication interface unit connected to the signal output terminal of the first micom and inputting a collision detection signal output from the first micom and then transmitting to a third communication interface unit mounted in the central unit. Electronic airbag control device for frame body vehicles. The electronic device of claim 1, wherein the left local sensor comprises: a second electronic acceleration sensor configured to detect an electric collision of the vehicle and output a collision signal; Is connected to a signal output terminal of the second electronic acceleration sensor, inputs a collision signal output from the second electronic acceleration sensor, determines whether the input collision signal is a minor collision, and detects a collision if it is not a minor collision. A second microcomputer for outputting a signal; And a second communication interface unit connected to the signal output terminal of the second microcomputer and inputting a collision detection signal output from the second microcomputer to a third communication interface unit mounted in the central apparatus. Electronic airbag control device for frame body vehicles.

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