JP2008195230A - Side impact airbag control device - Google Patents

Abstract

A side collision airbag control device capable of preventing erroneous detection is provided.
A side impact airbag control device according to the present invention includes a first impact force detection sensor disposed at a door or a rocker of a vehicle and a second impact force sensor disposed at any pillar of the vehicle. The impact force detection sensors 3 and 4 and the control means 5 for operating the airbag 6 when the output value of the first impact force detection sensor 2 exceeds the first threshold value, and the first impact force detection sensor After the output value of 2 exceeds the second threshold value smaller than the first threshold value, the output value of the first impact force detection sensor 2 does not exceed the first threshold value within a predetermined time and the second threshold value is exceeded. When the output value of the first impact force detection sensor 3 or 4 does not exceed the second threshold value, the output value of the first impact force detection sensor 2 or the second impact force detection sensor 3 or 4 is When the third threshold value, which is smaller than the threshold value, is exceeded, the control means 5 causes the airbag 6 to And wherein the operating.
[Selection] Figure 4

Description

  The present invention relates to a side collision airbag control device suitable for use in automobiles such as passenger cars, trucks, and buses.

  In recent vehicles, when another vehicle collides with the side of the vehicle (hereinafter referred to as a normal barrier side collision) or when the vehicle rolls over or spins and collides with a pole such as a utility pole, Some have side impact airbag devices.

In order to detect such a side collision with high accuracy and protect an occupant, for example, a side collision airbag apparatus as described in Patent Document 1 has been proposed. In such a side-impact airbag device, the difference between the output values of two impact force detection sensors that are spaced apart from each other in the vehicle longitudinal direction is detected, particularly when the aforementioned pole collides with the side surface. Focuses on the fact that the difference between the output values becomes large, and detects that a side collision has occurred in the vehicle.
Japanese Patent No. 3503549

  However, in such a side collision airbag control device, when a pole collides with a side surface, or when a part of the front end of another vehicle partially collides with a side surface (hereinafter referred to as a side collision such as a pole). ), When the vehicle is locally deformed, the output values of the two impact force detection sensors become lower than those of a normal barrier side collision.

  Due to this, although the difference between the two impact force detection sensors is detected, it is necessary to lower the threshold for detection. When a strong impact force is applied, there has been a problem that the problem of erroneously detecting it as a side collision has not been solved.

  In view of the above problems, an object of the present invention is to provide a side collision airbag control device that can prevent erroneous detection.

In order to solve the above problem, an airbag control device for side collision according to the present invention includes:
An output value of the first impact force detection sensor disposed at the door or the rocker of the vehicle, the second impact force detection sensor disposed at any pillar of the vehicle, and the output value of the first impact force detection sensor is A control means for operating the airbag when a threshold value is exceeded,
Within a predetermined time after the output value of the first impact force detection sensor exceeds a second threshold value that is smaller than the first threshold value, the output value of the first impact force detection sensor becomes the first output value. When the threshold value is not exceeded and the output value of the second impact force detection sensor does not exceed the second threshold value, the output of the first impact force detection sensor or the second impact force detection sensor is further provided. The control means operates the airbag when a value exceeds a third threshold value smaller than the second threshold value.

  The door may be either a front door or a rear door, and the rocker is a structural member that is disposed on both sides of the vehicle floor in the vehicle width direction and reinforces the vehicle body extending in the vehicle front-rear direction. Further, the pillar is a structural member that supports the roof of the vehicle, and refers to, for example, a B pillar located between the front door and the rear door and a C pillar located behind the rear door.

  Here, the first impact force detection sensor may be provided only on the front door, may be provided only on the rear door, or may be provided on both the front door and the rear door. These are appropriately determined depending on whether the front seat or the rear seat is to be protected. The second impact force detection sensor may be provided only on the B pillar, or may be provided on both the B pillar and the C pillar.

  The airbag is a side collision airbag, and is provided on the seat back of the vehicle seat or the inner side surface of the door, and is deployed mainly between the trunk and the door at the time of the side collision, A side airbag that mainly protects the torso and a roof side rail of the vehicle, and is deployed between the vicinity of the occupant's head and the inner surface of the vehicle body to mainly protect the occupant's head Includes both curtain airbags.

  In the side collision airbag control device according to the present invention, the level of the output values of the first impact force detection sensor and the second impact force detection sensor is small at the time of a side collision such as a pole, Within a predetermined time after the output value of one impact force detection sensor has output a large first peak value and rises, the output value rises again with a second peak value smaller than the first peak value, This utilizes the property that the output value of the output value of the second impact force detection sensor gradually rises in synchronization with the second peak, and the following effects can be obtained.

  Here, it is preferable that the second threshold value is larger than an output value of the first impact force detection sensor when the door is strongly closed.

  According to this, in setting a second threshold value that is smaller than the first threshold value in a side collision such as a pole, the impact force acting on the door when the door is strongly closed causes the side collision airbag control device to It is possible to prevent the control means from erroneously detecting that a side collision has occurred.

  At the same time, by setting a second threshold value smaller than the first threshold value used at the time of a normal side collision, the level of the output value of the first impact force detection sensor is reduced at the time of a side collision such as a pole. Also, the rising edge of the output value can be accurately detected.

  Furthermore, it is preferable that the third threshold value is smaller than an output value of the first impact force detection sensor when the door is strongly closed.

  According to this, at the time of a side collision such as a pole, the output value of the first impact force detection sensor once outputs a large first peak value and then rises again within a predetermined time within a predetermined time. Utilizing the above-described property that the output value of the second impact force detection sensor rises gently in synchronization with the second peak value, with a second peak value smaller than the value. As described below, it is possible to more accurately detect a side collision such as a pole.

  In other words, a second threshold value smaller than the first threshold value used at the time of a normal side collision and a smaller third threshold value are set, and within a predetermined time after the first peak value exceeds the second threshold value. In addition, it is possible to more accurately detect a side collision such as a pole by determining whether the second threshold value or the output value of the second impact force detection sensor exceeds the third threshold value. As a result, erroneous detection due to strong closing of the door can be prevented.

  ADVANTAGE OF THE INVENTION According to this invention, the airbag control apparatus for side collision which can prevent a misdetection can be provided.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a schematic view showing an embodiment of a side collision airbag control apparatus according to the present invention, and FIG. 2 is a schematic view showing an embodiment of a side collision airbag control apparatus according to the present invention. is there.

  The side collision airbag control apparatus 1 according to the present embodiment includes a door sensor 2 provided on a front door of a vehicle, a B pillar sensor 3 provided on a B pillar of the vehicle, and a C pillar sensor 4 provided on a C pillar of the vehicle. An airbag ECU 5 (Electronic Control Unit) and an airbag 6 are provided.

  The door sensor 2 is composed of an acceleration sensor provided on the front door of the vehicle as shown in FIG. 2, and measures the impact force at a portion closer to the position of the front seat occupant during a side collision of the vehicle. The measured value is output to the airbag ECU 5 and constitutes a first impact force detection sensor. Although not shown here, the acceleration sensor is installed at a joint portion formed by welding the impact beam constituting the front door and the rear end portion.

  The B pillar sensor is composed of an acceleration sensor provided inside the B pillar, which is a structural member that is positioned between the front door and the rear door of the vehicle as shown in FIG. 2 and supports the roof of the vehicle. This also measures the impact force of the portion closer to the front seat occupant at the time of a side collision of the vehicle, and outputs the measured value to the airbag ECU 5, and constitutes a second impact force detection sensor. Is.

  The C-pillar sensor 4 is configured by an acceleration sensor that is located behind the rear door of the vehicle as shown in FIG. 2 and is provided inside the C-pillar that is a structural member that supports the roof of the vehicle. Also, the impact force of the portion closer to the passenger in the rear seat at the time of a side collision of the vehicle is measured, and the measured value is output to the airbag ECU 5, which also constitutes a second impact force detection sensor. Is.

  The airbag ECU 5 is constituted by, for example, a CPU, a ROM, a RAM, and a data bus that interconnects them, and constitutes a control means for the CPU to perform each process described below in accordance with a program stored in the ROM. .

  The airbag 6 is a side collision airbag, and is provided on a seat back of a front vehicle seat (not shown) and is deployed mainly between a trunk and a door at the time of a side collision. A side airbag mainly protecting the occupant's torso and a roof side rail of the vehicle, and deployed between the vicinity of the occupant's head and the inner surface of the vehicle body, and mainly the occupant's head It includes both a curtain airbag and a protective airbag.

  The airbag ECU 5 considers that a normal barrier side collision has occurred when any of the output values of the door sensor 2, the B pillar sensor 3, and the C pillar sensor 4 exceeds the threshold value A, and the airbag ECU A development signal for operating 6 is output.

  Here, the waveform of the output value of the door sensor 2, the output value of the B-pillar sensor 3, and the output value of the C-pillar sensor 4 will be specifically described for both a normal barrier side collision and a side collision such as a pole. .

FIG. 3 is a schematic view showing sensor outputs at the time of a barrier side collision of the side collision airbag control apparatus according to the present embodiment. FIG. 4 is also a pole of the side collision airbag control apparatus according to the present embodiment. It is a schematic diagram which shows each sensor output at the time of side collision, such as. 3 and 4, the horizontal axis represents time (msec) and the vertical axis represents impact force (m / s ² ).

  As shown in FIG. 3, the output value of the door sensor 2 (solid line), the output value of the B-pillar sensor 3 (dashed line), and the output of the C-pillar sensor 4 when the vehicle body collides with the entire vehicle side surface. In the waveform of the value (broken line), immediately after the collision, the output value of the door sensor 2 and the output value of the B-pillar sensor rise almost simultaneously, and 3 msec later, the output value of the C-pillar sensor 4 rises.

The output value of the door sensor 2 rises up to 1200 m / s ² at 5 msec, then falls, falls down to zero crossing at 10 msec, and the output value of the B pillar sensor 3 rises to about 1250 m / s ^{2 at} 6 msec. It falls until it zero-crosses at 15 mec.

The C pillar sensor 4 starts to rise from 5 msec, rises to about 330 m / s ^{2 at 8} msec, then falls, once crosses zero at 11 msec, rises to about 720 m / s ^{2 at} 15.5 msec, then falls, and again at 20 msec Zero cross.

The output value of the door sensor 2 when the door is strongly closed is about 500 m / s ² , the threshold value A is 930 m / s ² , and the threshold value B is 600 m, which is larger than the output value 500 m / s ² of the door sensor 2 when the door is strongly closed. / S ² .

  Thus, during a normal barrier side collision, the output value of the door sensor 2 and the output value of the B pillar sensor 3 exceed the rising threshold A almost simultaneously. Since a large difference in output value occurs at the subsequent fall, detection of a side collision is also possible by a method in which the difference between the output value of the door sensor 2 and the output value of the B pillar sensor 3 is obtained and compared with a threshold value as in the prior art. Easy.

However, as shown in FIG. 4, at the time of a side collision in which a pole or the like collides with the front door, the output value of the door sensor 2 rises at about 4 msec, exceeds the threshold value B at about 7 msec, and reaches 800 m / s at 8 msec. ^It takes a peak value of about ^2, starts falling without reaching the threshold A, and crosses zero at 11 msec.

The output value of the B pillar sensor 3 starts to rise at about 7 msec, takes a first peak value of about 120 m / s ^{2 at} 11 msec, then falls once, rises again at 13 msec, and then gradually increases.

  That is, since the output value of the door sensor 2 does not exceed the threshold value A, the difference between the output value of the door sensor 2 and the output value of the B pillar sensor 3 is compared with the threshold value A as in the prior art. A side collision caused by a pole or the like cannot be accurately detected.

Further, the output value of the door sensor 2 is bottomed out at value exceeding -400m / ^{s 2} at about 12 msec, and the zero-crossing in 15msec rises again, take the second peak value of about 250 meters / ^{s 2} at 17 msec.

  Further, the output value of the C pillar sensor 4 has a waveform that rises at about 15 msec and then gradually increases so as to be substantially synchronized with the second peak value of the output value of the door sensor 2.

In order to detect a side collision using the characteristics of the waveform of the output value of the door sensor 2, the output value of the B pillar sensor 3, and the output value of the C pillar sensor 4 at the time of such a side collision such as a pole, In the embodiment, a new threshold C smaller than the output value 500 m / s ² of the door sensor 2 when the door is strongly closed is set as follows.

  That is, if the output value of the B pillar sensor does not exceed the threshold value B within a predetermined time (for example, 5 msec) after the output value of the door sensor 2 exceeds the threshold value B smaller than the threshold value A, the airbag ECU 5 thereafter When one of the output value of the door sensor 2, the output value of the B pillar sensor 3, or the output value of the C pillar sensor 4 exceeds a threshold value C smaller than the threshold value B, it is considered that a side collision such as a pole has occurred. A deployment signal for operating the airbag 6 is output.

  According to this, at the time of a side collision such as a pole, the output value of the door sensor 2 is once smaller than the first peak value within a predetermined time of 5 msec after the first peak value is output and rises. The above-described property that the output rises with the second peak value, and the output value of the B-pillar sensor 3 and the output value of the C-pillar sensor 4 rise gradually gradually in synchronization with the second peak of the output value of the door sensor 2. By using this, it is possible to more accurately detect a side collision such as a pole as follows.

That is, a threshold value B smaller than the threshold value A used at the time of a normal side collision and a smaller threshold value C are set, and the threshold value C is within a predetermined time 5 msec after the threshold value B exceeds the first peak value of the door sensor 2. By determining whether the second peak value of the door sensor 2, the output value of the B pillar sensor 3, or the output value of the C pillar sensor 4 is exceeded, a side collision such as a pole can be detected more accurately. Further, by setting the threshold value B to be larger than the output value 500 m / s ² of the door sensor 2 when the door is strongly closed, it is possible to prevent erroneous detection due to the door being strongly closed.

  The control contents of the side collision airbag control apparatus 1 according to this embodiment will be described below with reference to flowcharts. FIG. 5 is a flowchart showing the contents of control by one embodiment of the side collision airbag control apparatus according to the present invention.

  As shown in FIG. 5, in S1, the airbag ECU 5 detects the output value of the door sensor 2, in S2, the airbag ECU 5 detects the output value of the B pillar sensor 3, and in S3, the airbag ECU 5 The output value of the pillar sensor 4 is detected.

  In S4, the airbag ECU 5 determines whether or not the output value of the door sensor 2 exceeds the threshold value B, and if the output value of the door sensor 2 exceeds the threshold value B, a normal barrier side collision or a side collision such as a pole is performed. Is determined to have occurred, and the process proceeds to S5. In S4, when the airbag ECU 5 does not determine that the output value of the door sensor 2 has exceeded the threshold value B, it is assumed that neither a normal side collision or a side collision by a pole or the like has occurred, and the airbag 6 is operated. The control is terminated without making it happen.

  In S5, the airbag ECU 5 determines whether or not the output value of the door sensor 2 exceeds the threshold A within 5 msec after the output value of S4, that is, the door sensor 2 exceeds the threshold B, and the output value of the door sensor 2 is the threshold value. If it exceeds A, it is considered that a high-speed barrier side collision that requires normal deployment of the airbag 6 has occurred, and the process proceeds to S9.

  In S9, the airbag ECU 5 outputs a deployment signal to the airbag 6, whereby the airbag 6 is deployed and protects the head and trunk of the front seat occupant. If the output value of the door sensor 2 does not exceed the threshold value A in S5, it is considered that there is a possibility that a side collision caused by a pole or the like or a low-speed side collision that does not require the normal deployment of the airbag 6 has occurred. Proceed to S6.

  In S6, the airbag ECU 5 determines whether the output value of the B pillar sensor 4 exceeds the threshold value B within 5 msec after the output value of the door sensor 2 exceeds the threshold value B in S4. If the output value does not exceed the threshold value B, it is considered that a side collision due to a pole or the like has occurred, and the process proceeds to S7. In S6, when the output value of the B pillar sensor 4 exceeds the threshold value B, it is considered that a normal low-speed barrier side collision has occurred, and the process proceeds to S10.

  In S10, the airbag ECU 5 determines whether any one of the output value of the door sensor 2, the output value of the B pillar sensor 3, and the output value of the C pillar sensor 4 exceeds the threshold A. In S10, if none of the output value of the door sensor 2, the output value of the B pillar sensor 3, and the output value of the C pillar sensor 4 exceed the threshold value A, a normal low-speed barrier side collision has not occurred. Therefore, the control is terminated without skipping S9 and operating the airbag 6.

  In S10, when any one of the output value of the door sensor 2, the output value of the B pillar sensor 3, and the output value of the C pillar sensor 4 exceeds the threshold A, a normal low-speed barrier side collision has occurred. And proceed to S9. In S <b> 9, the airbag ECU 5 outputs a deployment signal to the airbag 6, and the airbag 6 is deployed along with this to protect the trunk and head of the front seat occupant.

In S7, the airbag ECU5 sets the threshold value C of less 200 meters / ^{s 2} than the output value 500 meters / ^{s 2} of the small and the door strength closed door sensor 2 than the threshold value B, then advance to S8, door sensor Whether one of the output value of 2, the output value of the B pillar sensor 3 and the output value of the C pillar sensor 4 exceeds the threshold value C is determined.

  In S8, if none of the output value of the door sensor 2, the output value of the B-pillar sensor 3, and the output value of the C-pillar sensor 4 exceed the threshold value C, it is considered that a side collision due to a pole or the like has not occurred. , S9 is skipped, and the control is terminated without operating the airbag 6.

  In S8, if any of the output value of the door sensor 2, the output value of the B pillar sensor 3, and the output value of the C pillar sensor 4 exceeds the threshold C, it is considered that a side collision due to a pole or the like has occurred. Then, proceeding to S9, the airbag ECU 5 outputs a deployment signal to the airbag 6. Along with this, the airbag 6 is deployed to protect the occupant's head and torso.

  When these control contents are applied to the waveforms of FIG. 3 and FIG. 4 described above, the output value of the door sensor 2 exceeds the threshold value B in (a) in the normal barrier side collision shown in FIG. Since the threshold value A is exceeded in (b), it is determined Yes in S4, Yes in S5, the processing content of S9 is executed, and the airbag ECU 5 outputs a deployment signal to the airbag 6.

  Further, in a side collision such as a pole shown in FIG. 4, the output value of the door sensor 2 does not exceed the threshold value A after the threshold value B exceeds the threshold value B in (A), and within 5 msec of (A), B Since the output value of the pillar sensor 3 does not exceed the threshold B, it is determined as Yes in S4, No in S5, and No in S6.

  For this reason, the process proceeds to step S7 to set a threshold C, and using the threshold C in step S8, the output value of the door sensor 2, the output value of the B pillar sensor 3, and the output value of the C pillar sensor 4 are It is determined whether any of them exceeds the threshold C. If any of them exceeds the threshold C, the process proceeds to step S9, and the airbag ECU 5 outputs a deployment signal to the airbag 6. .

  According to the embodiment described above, a threshold B smaller than the threshold A used at the time of a normal barrier side collision and a threshold C smaller than that are set, and the threshold B is set to the first peak value of the output value of the door sensor 2. Within 5 msec after exceeding, the threshold C is judged whether the second peak value of the door sensor 2 or the output value of the B pillar sensor 3 or the output value of the C pillar sensor 4 is exceeded. More accurate detection is possible. As a result, erroneous detection due to strong closing of the door can be prevented.

  That is, in this embodiment, when a pole or the like collides with the side surface of the vehicle, the output value of the door sensor 2 once outputs a large first peak value, and then rises again within a predetermined time of 5 msec. Using the property that the output rises with the second peak value smaller than the first peak value, and the output value of the B pillar sensor 3 and the output value of the C pillar sensor 4 gradually increase accordingly, the pole value is more accurate. Thus, the airbag 6 can be accurately controlled by detecting a side collision such as the above.

Further, the threshold value C smaller than the output value 500 m / s ² of the door sensor 2 when the door is strongly closed is not set from the beginning, the output value of the door sensor 2 exceeds the threshold value B in S4, and the door sensor 2 in S5. When the output value of B exceeds the threshold value A and the output value of the B pillar sensor 3 does not exceed the threshold value B in S6, the side collision by the pole or the like is set for the first time when it is determined that the side collision by the pole or the like has occurred. It is possible to eliminate the reduction of the threshold value for detecting. As a result, it is possible to prevent erroneous detection of the impact force caused by the strong closing of the door as a side collision caused by a pole or the like.

  In addition, when it is determined that there is a possibility of a side collision caused by a pole or the like, the output value of the door sensor 2, the output value of the B pillar sensor 3, and the output value of the C pillar sensor 4 are calculated using a small threshold C. Since it can be determined that a side collision such as a pole is caused by whether or not any one of the threshold values C is exceeded, more accurately using the waveform characteristics of the output value of each sensor in a side collision caused by a pole or the like. A side collision caused by a pole or the like can be detected.

Furthermore, by setting a threshold value B smaller than the threshold value A used at the time of a normal side collision, even when the output value level of the door sensor 2 is small, the rising of the output value can be accurately detected at the side collision of the pole. can do. Further, since the threshold value B is set to be larger than the output value 500 m / s ² of the door sensor 2 when the door is strongly closed, the impact force when the door is strongly closed is also a side collision caused by a pole or the like. It is possible to prevent erroneous detection.

  In addition, since it is possible to eliminate the necessity of lowering the threshold A used for detecting the normal barrier side collision, the barrier side collision is caused by the impact force when the door is strongly closed in detecting the normal barrier side collision. It is possible to prevent erroneous determination.

  Although the preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and substitutions are made to the above-described embodiments without departing from the scope of the present invention. be able to.

  For example, in the above-described embodiment, the door sensor 2 is provided on the front door of the front seat as the first impact force detection sensor, but the first impact force detection sensor is provided on the rear door for the purpose of protecting the occupant in the rear seat. You can also. In this case, the side airbag of the airbag 6 is also provided on the rear vehicle seat or the rear door.

  Furthermore, two door sensors 2 as first impact force detection sensors can be provided on both the front door and the rear door, and the airbag 6 can be provided on both the front door and the rear door.

  Furthermore, by providing the door sensor 2 on both the front door and the rear door as described above, it becomes possible to detect which side collision by the pole or the like has collided with the front door or the rear door. When a side collision such as a pole occurs on the front door side, the front seat airbag 6 is operated. When a side collision such as a pole occurs on the rear door side, the rear seat airbag 6 is selectively selected. It is also possible to cause the airbag ECU 5 to execute the control to be operated automatically.

  Further, instead of the door sensor 2, an acceleration sensor can be provided on the rocker which is a structural member extending in the vehicle front-rear direction on the vehicle width direction outside of the vehicle floor. In this case as well, it can be selectively provided in both or one of the portion corresponding to the front door of the rocker and the portion corresponding to the rear door.

  Furthermore, although two B-pillar sensors 3 and C-pillar sensors 4 are provided here as the second impact force detection sensors, it is of course possible to provide them at other locations.

  In the above embodiment, the predetermined time is 5 msec. This time takes into account the characteristics of the waveform of the output value of the door sensor 2, the output value of the B pillar sensor 3, and the output value of the C pillar sensor 4 of each vehicle type. Thus, it can be changed as appropriate.

  The present invention relates to a side collision airbag control device applied to an automobile, and more accurately detects a side collision of a pole or the like by a relatively minor change in the control content of the device, thereby enabling safe driving of an occupant. Since the effect of obtaining the environment can be obtained, it is applicable to various vehicles such as passenger cars, trucks, buses, and the like.

It is a schematic diagram which shows one Example of the airbag control apparatus for a side collision which concerns on this invention. It is a schematic diagram of one Example of the airbag control apparatus for side collision which concerns on this invention. It is a schematic diagram which shows each sensor output at the time of the barrier side collision of one Example of the airbag control apparatus for side collisions concerning this invention. It is a schematic diagram which shows each sensor output at the time of side collision, such as a pole of one Example of the airbag control apparatus for side collision which concerns on this invention. It is a flowchart which shows the control content of one Example of the airbag control apparatus for side collisions which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Side impact airbag control device 2 Door sensor 3 B pillar sensor 4 C pillar sensor 5 Airbag ECU
6 Airbag

Claims (3)

An output value of the first impact force detection sensor disposed at the door or the rocker of the vehicle, the second impact force detection sensor disposed at any pillar of the vehicle, and the output value of the first impact force detection sensor is A control means for operating the airbag when a threshold value is exceeded,
Within a predetermined time after the output value of the first impact force detection sensor exceeds a second threshold value smaller than the first threshold value, the output value of the first impact force detection sensor becomes the first value. When the threshold value is not exceeded and the output value of the second impact force detection sensor does not exceed the second threshold value, the output of the first impact force detection sensor or the second impact force detection sensor is further provided. A side collision airbag control apparatus, wherein the control means operates the airbag when a value exceeds a third threshold value smaller than the second threshold value.   The side collision airbag control apparatus according to claim 1, wherein the second threshold value is larger than an output value of the first impact force detection sensor when the door is strongly closed.   3. The side collision airbag control apparatus according to claim 1, wherein the third threshold value is smaller than an output value of the first impact force detection sensor when the door is strongly closed.

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