KR20140063291A - Apparatus for and method of reducing damage by rear-end collision of medium and heavy commercial vehicles - Google Patents

Apparatus for and method of reducing damage by rear-end collision of medium and heavy commercial vehicles Download PDF

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Publication number
KR20140063291A
KR20140063291A KR1020120130488A KR20120130488A KR20140063291A KR 20140063291 A KR20140063291 A KR 20140063291A KR 1020120130488 A KR1020120130488 A KR 1020120130488A KR 20120130488 A KR20120130488 A KR 20120130488A KR 20140063291 A KR20140063291 A KR 20140063291A
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South Korea
Prior art keywords
vehicle
collision
airbags
commercial vehicle
following
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KR1020120130488A
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Korean (ko)
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전정훈
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현대자동차주식회사
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Priority to KR1020120130488A priority Critical patent/KR20140063291A/en
Publication of KR20140063291A publication Critical patent/KR20140063291A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/56—Fittings damping bouncing force in truck collisions, e.g. bumpers; Arrangements on high-riding vehicles, e.g. lorries, for preventing vehicles or objects from running thereunder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

Disclosed is a rear impact damage reduction device and method for reducing the amount of impact upon collision between a truck and a subsequent vehicle, and preventing the amount of passenger cars from being pushed under the truck in a rearward collision by a passenger car. The disclosed apparatus comprises: a rear board stabilizer that is connected to a rear end of a side frame of a middle- or large-sized commercial vehicle; A rear safety plate installed on the rear seat fixing plate within a predetermined distance from a loading end of a middle- or large-sized commercial vehicle; A rear safety plate connection to the rear seat fixing plate; A collision detecting unit for detecting the type of the following vehicle following the medium-sized commercial vehicle and the relative distance between the medium-large commercial vehicle and the succeeding vehicle; A pair of first airbags mounted on the rear safety plate and deployed toward the rear of the middle-sized commercial vehicle in a collision by the following vehicle to reduce the amount of impact by the subsequent vehicle; A pair of second airbags mounted on a lower portion of the pair of first airbags and deployed toward the ground in a collision by the following vehicle to reduce the amount of impact by the following vehicle; And a controller for receiving the signal of the collision detecting unit to determine a collision by the following vehicle and deploying the first and second airbags in accordance with the type of the following vehicle detected by the collision detecting unit at the time of collision by the following vehicle.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a rear impact collision damper,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an active rear impact damage reduction device based on a rear camera for a medium and large-sized commercial vehicle, and more particularly, to a rear impact damage reduction device for reducing damage caused by a rear impact using a camera.

Most heavy-duty trucks are equipped with pneumatic brakes, and their braking power is much better than the brakes of hydraulic cars. If a dangerous situation occurs, a driver of a medium-sized commercial vehicle (truck) can stop the medium-sized commercial vehicle by stepping on the brake pedal. On the other hand, a driver of a passenger car following a medium-sized commercial vehicle often fails to cope with the sudden stoppage of the preceding vehicle and frequently collides with a leading middle-sized commercial vehicle.

Most passenger vehicles have lower vehicle heights than commercial vehicle rear seats. Therefore, when a commercial vehicle preceding the preceding passenger car collides, the amount of the passenger car may be pushed below the commercial vehicle, and the driver of the passenger vehicle may die.

In order to reduce such damage, a rear impact damage reduction device as shown in Fig. 1 has been developed. As shown in FIG. 1, the conventional rear impact damage reduction apparatus includes a rear bumper fixing member 20 extending from a rear bottom surface of a loading box 12 of a commercial vehicle, a rear bumper 22 fixed to a lower end of a rear bumper fixing member 20, An angle measuring sensor 40 installed on the rear bumper fixing table 20 for detecting a tilting angle of the rear bumper fixing table 20 and an angle sensor 40 mounted on the rear bumper 22 for detecting an impact amount of a passenger car or the like And an air bag 10 which inflates in accordance with an output signal of the angle sensor 40 and the impact sensor 30 to prevent another vehicle colliding with the commercial vehicle from being pushed under the commercial vehicle do.

If the amount of impact applied to the rear bumper 22 measured by the impact sensor is equal to or greater than a predetermined amount and the angle of wrapping of the rear bumper 22 measured by the angle measurement sensor 40 is 30 degrees or more, the airbag 10 expands, So as to prevent the passenger car from colliding under the commercial vehicle.

However, since most of the rear bumper 22 of the commercial vehicle (truck) is made of iron and most of the rear bumper fixing table 20 is made of iron, the angle measuring sensor 40 measures the angle of wrapping of the rear bumper 22 It is difficult to do. Since the rear bumper fixing table 20 is not fixed directly to the loading box 12 but is fixed to the side frame of the bottom of the loading box 12 with a plurality of bolts as shown in the figure, And the rear bumper mount 20 are only slightly distorted or wheeled. That is, it is difficult to measure the angle of wrapping of the rear bumper 22.

The height of the lowermost end of the rear bumper 22 of the large commercial vehicle (truck) is usually 0.5 m or more, and the height of the loading box 12 is 1.5 m or more. When the amount of the passenger car collides with the back of the large commercial vehicle, problems may occur due to the air bag deployment time / air bag size and the like. For example, when the airbag of a large-sized commercial vehicle pops up at the top, the support point of the airbag becomes the bottom of the loading box, and the amount of impact applied to the passenger vehicle colliding with the large commercial vehicle at the rear is relatively reduced. Further, when the amount of the passenger car strongly collides with the rear of the large commercial vehicle, the possibility that the airbag is damaged by the safety bar bent by the impulse is very high.

In addition, the backboards of large commercial vehicles are often subject to impact during cargo loading and driving. For example, when a worker steps on a rearboard of a large commercial vehicle and climbs up to a loading platform, the rearboard may hit a relatively low-lying obstacle in the course of a large commercial vehicle backward. Therefore, when the shock sensor is used, there is a high possibility that the airbag is deployed even when the airbag should not deploy.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a rear impact damage reduction device that accurately senses a rear impact of a large commercial vehicle using a camera and develops the airbag without interference with other objects to reduce the risk of injury in the rear impact of the opposite commercial vehicle .

In order to accomplish the above object, the present invention provides a rear seat stabilizer for a vehicle, comprising: a rear support plate fixed to a rear end of a side frame of a middle- or large-sized commercial vehicle; A rear safety plate installed on the rear seat fixing plate at a predetermined distance inward from a loading end of the middle- or large-sized commercial vehicle; A rear safety plate connecting portion connecting the rear safety plate to the rear safety plate fixing member so as to be pivotable by a predetermined angle; A collision detecting unit mounted on the rear safety plate for detecting a type of the following vehicle following the middle or large commercial vehicle and a relative distance between the medium or large commercial vehicle and the following vehicle; A pair of first airbags mounted on the rear safety plate and deployed toward the rear of the middle-sized commercial vehicle in the event of a collision by the following vehicle to reduce the amount of impact by the subsequent vehicle; A pair of second airbags mounted on a lower portion of the pair of first airbags and deployed toward the ground in a collision by the following vehicle to reduce the amount of impact by the subsequent vehicle; A controller for receiving the signal of the collision detecting unit to determine a collision by the following vehicle and deploying the first and second airbags according to the type of the following vehicle detected by the collision detecting unit when the collision is caused by the following vehicle, The present invention provides a rear impact crash reduction device for a middle- or large-sized commercial vehicle.

The rear impact damage reduction device further includes a damping device that connects the rear seat panel to the side frame and attenuates the amount of impact by the following vehicle, and the damping device may be a hydraulic damper.

The rear safety plate connection portion is a hinge, and the rear safety plate connection portion is bent at a predetermined angle after collision by the following vehicle.

A camera is used as the collision detection unit.

The controller receives the photographed image of the following vehicle from the collision detecting unit, the relative distance to the following vehicle, and receives the speed of the vehicle from the vehicle speed sensor of the medium-sized commercial vehicle; Judging a rearward collision by a following vehicle when the middle- or large-sized commercial vehicle maintains a distance or a distance shorter than a relative distance for a predetermined holding time by the type of the following vehicle, the relative distance, and the succeeding vehicle at the time of traveling at a predetermined speed; When it is judged as a rear collision, a pair of first airbags is deployed when the following vehicle is a commercial vehicle, and a pair of second airbags is deployed when the following vehicle is a passenger vehicle.

The present invention further provides a method of controlling a vehicle, comprising: determining whether a middle- or large-sized commercial vehicle is traveling at a predetermined speed or more; Determining whether a subsequent vehicle exists through an image photographed by the camera; Determining whether the succeeding vehicle is a passenger vehicle or a commercial vehicle when the succeeding vehicle exists; Determining a collision by a subsequent vehicle and deploying a pair of first airbags when the subsequent vehicle is a commercial vehicle; And deploying a pair of second airbags when the subsequent vehicle is a passenger vehicle by determining a collision by a subsequent vehicle.

The step of deploying the pair of first airbags comprises the steps of: determining whether a first relative distance between the following vehicle and the medium-size commercial vehicle is within a first predetermined distance; Determining whether the first relative distance is maintained for a first predetermined holding time when the first relative distance is shorter than or equal to the first predetermined distance; And deploying the pair of airbags when the first relative distance is maintained within the first predetermined distance for a first predetermined holding time.

Wherein the step of deploying the pair of second airbags comprises the steps of: determining whether a second relative distance between the following vehicle and the middle- or large-sized commercial vehicle is within a second predetermined distance; Determining whether the second relative distance is maintained for a second predetermined holding time when the second relative distance is shorter than or equal to the second predetermined distance; And deploying the pair of airbags when the second relative distance is maintained within the second predetermined distance during the second predetermined holding time.

According to the rear impact impact reduction device of the middle- or large-sized commercial vehicle according to the present invention, the airbag of the middle- or large-sized commercial vehicle can be installed on the rear safety plate to reduce the damage caused in the rear collision by the passenger vehicle.

Further, according to the rear impact impact reduction device of a medium- to large-sized commercial vehicle according to the present invention, instead of the impact sensor, the distance to the rear vehicle and the type of the rear vehicle based on the camera are recognized, The airbag is deployed without failure at the time of a rear collision to reduce the damage caused by the rear collision.

In addition, the airbags deployed by deploying the airbags in the rear seat of the middle and large-sized commercial quantities are not interfered with other structures or rear seatboards of the middle- or large-sized commercial vehicles on which the airbags are mounted during deployment, It is possible to reduce the amount of the impact.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view and a rear view showing a rear impact damage reduction device of a conventional medium and large sized commercial vehicle of the present invention. FIG.
FIG. 2 is a side view showing a rear impact damage reduction device of a middle- or large-sized commercial vehicle according to an embodiment of the present invention mounted on a medium-sized commercial vehicle.
3 is a front view and a bottom view showing an installation position of an airbag in a rear impact impact reduction device of a middle- or large-sized commercial vehicle according to an embodiment of the present invention.
4 is a cross-sectional view of a rear safety plate showing an installation position of an airbag in a rear impact damage reduction device of a medium- and large-sized commercial vehicle according to an embodiment of the present invention.
5 is a sectional view of a rear safety plate for explaining the installation of a camera of a rear impact impact reduction device of a medium- and large-sized commercial vehicle according to an embodiment of the present invention.
FIG. 6 is a view for explaining the operation of the rear safety plate of the rear impact damage reduction device of a medium- and large-sized commercial vehicle according to an embodiment of the present invention.
FIG. 7 is a view for explaining an unfolding position of an airbag according to a type of a following vehicle in a rear-end collision damage reduction apparatus for a medium- and large-sized commercial vehicle according to an embodiment of the present invention.
FIG. 8 is a flowchart for explaining a rear impact damage reduction method of a medium-sized commercial vehicle according to an embodiment of the present invention.

2, the rear impact damage reduction apparatus 100 for a middle- or large-sized commercial vehicle according to an exemplary embodiment of the present invention includes a rear seat panel 110 fixed to a rear end of a side frame 102 of a middle- A rear safety plate 120 installed on the rear seat fixing plate 110, a collision detecting unit mounted on the rear safety plate 120 to detect the type of the following vehicle following the middle or large sized commercial vehicle and the relative distance between the middle or large size commercial vehicle and the following vehicle A pair of first airbags 140 which are deployed toward the rear of the middle-sized commercial vehicle in the event of a collision by the following vehicle to reduce the amount of impact by the following vehicle, a first airbag 140 mounted on the lower portion of the first airbag 140, A pair of second airbags 142 that are deployed toward the rear of the vehicle to reduce the amount of impact by the subsequent vehicle, a signal of the collision detecting unit 130 to determine a collision by the following vehicle, And a controller (not shown) for deploying the first and second air bags (140, 142) according to the type of vehicle.

A hydraulic damper, not a normal bolt, is used as the rear seat fixing plate 110 for fixing the rear safety plate 120 to the side frame 102 of the middle- or large-sized vehicle. In the rear collision by the following vehicle, the hydraulic damper functioning as the rear seat fixing plate 110 attenuates the collision energy by the following vehicle to reduce the impact amount by the collision.

The rear safety plate 120 is fixed to the rear safety plate fixing table 110 as shown in FIG. The rear safety plate 120 is also pivotally fixed to the rear safety plate fixing base 110 by a hinge 122 at a predetermined angle? In the event of a rear-end collision by a following vehicle, particularly a rear-end collision by a small passenger vehicle, the rear safety plate 120 is turned by the hinge 122 at a predetermined angle?. At this time, the second airbag 142, which will be described later, is deployed toward the ground, absorbing the amount of impact of the passenger car that is hitting the rear of the middle-sized commercial vehicle, and preventing the passenger car from being pushed into the preceding vehicle.

As shown in Fig. 2, the rear safety plate 120 is fixed inside by a predetermined distance D from the rear end of the loading box of the middle- or large-sized commercial vehicle. The predetermined distance D differs depending on the type of the vehicle, and is, for example, about 200 mm in the case of a heavy truck. By adjusting the predetermined distance D, the detection sensitivity of the collision detecting unit 130 that detects collision by the following vehicle can be adjusted.

3 to 5, the collision detecting unit 130 and the first and second airbags 140 and 142 are mounted in the rear safety plate 120. [

As shown in FIG. 4, the first airbag 140 is installed on the inner upper portion of the rear safety plate 120 and is deployed toward the front surface of the rear safety plate 120 when the rear airbag is moved by the following vehicle. On the other hand, the second airbag 142 is mounted on the lower portion of the first airbag 140 and is deployed toward the ground in a rear impact by the following vehicle.

3 is a front view and a bottom view for explaining a position where the first and second airbags 140 and 142 are installed on the rear safety plate 120. FIG.

As shown in the figure, the length of the rear safety plate 120 is three times the distance r between the pair of rear safety plate fixing members 110, and the length of the rear safety plate fixing rods 110 is 1 / 2, the first airbag 140 is mounted. The first airbag 140 is mounted on the rear safety plate 120 so as to be deployed toward the front of the rear safety plate 120, that is, toward the rear of the medium-sized commercial vehicle.

The second airbag 142 is mounted on the lower safety plate 120 so as to face the bottom surface of the rear safety plate 120 so as to be mounted on the lower portion of the same point as the first airbag 140 and to be deployed toward the ground in the event of a collision by the following vehicle .

The mounted state of the first and second airbags 140 and 142 thus mounted is shown in Fig. As shown in the figure, the first airbag 140 is mounted in the upper space inside the rear safety plate 120, as indicated by the arrow, toward the front of the rear safety plate 120, that is, toward the rear of the medium size commercial vehicle. On the other hand, the second airbag 142 is mounted below the first airbag 140 and is mounted so as to be deployed toward the ground as indicated by an arrow.

The collision detecting unit 130 is mounted at the center of the rear safety plate 120, as shown in FIGS. As shown in the right drawing of FIG. 3, since the collision detecting unit 130 is mounted at the center of the rear safety plate 120, the change in the viewing angle is smaller than that in the case where the loading box of the middle- or large- . Thus, by mounting the collision detecting unit 130 on the rear safety plate 120, it is possible to appropriately detect the rear collision by the following vehicle even when the loading box of the middle- or large-sized commercial vehicle is open.

A camera is used as the collision detecting unit 130. The camera 130 is mounted to the rear safety plate using a bracket 138, as shown in Fig. First, the camera bracket 138 is installed on the rear safety plate 120, and then the camera 130 is inserted into the camera bracket 138. Next, the spacer 136 is installed on the outer circumferential surface of the camera 130, and the camera nut 134 is fastened to the screw formed on the outer circumferential surface of the camera 130, thereby fixing the camera 130 to the rear safety plate 120. Finally, the camera 130 is fixed to the rear safety plate 120 by fastening the screw 132 to the hole formed at the rear end of the camera bracket 138.

The camera 130 photographs the following vehicle when the medium-sized commercial vehicle travels at a predetermined speed, preferably 5 to 10 kph or more, and measures the relative distance between the medium-sized commercial vehicle and the following vehicle. The camera 130 photographs the following vehicle and outputs a result of measuring the relative distance to a controller (not shown).

The controller receives the speed of the vehicle from the vehicle speed sensor of the middle- or large-sized commercial vehicle, receives the relative distance between the photographed image of the following vehicle and the measured subsequent vehicle from the collision detecting unit, determines whether or not there is a collision by the following vehicle, The first and second airbags 140 and 142 are deployed.

Detailed operation of the controller will be described with reference to FIG. 8 which illustrates a rear impact damage reduction method according to an embodiment of the present invention.

FIG. 8 is a flowchart for explaining a rear impact damage reduction method of a medium-sized commercial vehicle according to an embodiment of the present invention.

In the figure, the controller first receives the photographed image of the following vehicle from the collision sensing unit 130 (S100), and receives the vehicle speed of the medium-sized commercial vehicle from the vehicle speed sensor (not shown) of the medium-sized commercial vehicle.

It is determined whether the vehicle speed of the middle- or large-sized commercial vehicle is a predetermined vehicle speed, for example, 5 to 10 kph or more (S102). As a result of the determination, if the vehicle speed of the middle-sized commercial vehicle exceeds a predetermined vehicle speed, the collision sensing unit 130 determines whether there is a subsequent vehicle from the subsequent vehicle image (S104). If there is no subsequent vehicle, the vehicle speed of the medium-sized commercial vehicle received by the vehicle speed sensor is received again. If there is a succeeding vehicle following the medium-sized commercial vehicle, it is determined whether the following vehicle is a commercial vehicle or a passenger vehicle (S106).

A method of determining the vehicle type of the following vehicle using the camera and measuring the relative distance with the following vehicle is already established in the vehicle recognition / distance recognition database, and a method of using the same is known in the field of the present invention And therefore, a detailed description thereof will be omitted.

If the next vehicle is determined to be a commercial vehicle, the controller compares the measured relative distance received from the collision sensing unit 130 with a predetermined first distance D1 to determine that the measured relative distance is less than the first predetermined distance D1 (S108).

If the measured relative distance is less than or equal to the first predetermined distance D1 (S108), the controller determines whether the measured relative distance is maintained for a predetermined time (S110). That is, if the next vehicle is a commercial vehicle such as a truck (S106) and the relative distance between the following vehicle and the middle or large-sized commercial vehicle is maintained for a predetermined time within the first predetermined distance D1 (S108) The first airbag 140 is deployed.

In the case of a rear-end collision by a commercial vehicle, the rear-end safety plate is not bent at a certain angle (?) Because the vehicle, such as a truck, collides first with the loading box. Accordingly, the first airbag 140 is deployed toward the rear of the medium-sized commercial vehicle, that is, toward the front surface of the rear safety plate 120. The first airbag 140 is deployed toward the front surface of the rear safety plate 120, that is, toward the following vehicle, so that the first airbag 140 is deployed between the middle- or large-sized commercial vehicle and the following vehicle to absorb the amount of impact therebetween, .

If it is determined that the next vehicle is a passenger vehicle (S106), the controller compares the relative distance measured by the collision sensing unit 130 with a second predetermined distance D2 (S114). If the measured relative distance is less than or equal to the second predetermined distance D2 (S114), it is determined whether the measured relative distance is maintained for a predetermined time (S116). That is, if the next vehicle is the passenger vehicle (S116) and the relative distance between the next vehicle and the middle-sized commercial vehicle is maintained for a predetermined time within the second predetermined distance D2 (S114) And the second airbag 140 is deployed.

At this time, the passenger car collides with the rear safety plate 120 rather than the load box of the medium-sized commercial vehicle, and thus the rear safety plate 120 is turned at a predetermined angle? By the hinge 122. Thus, the second airbag is deployed toward the ground to block further entry of the following vehicle, that is, the passenger vehicle entering between the rear safety board 120 and the ground, and to absorb the impact amount by the passenger vehicle.

Therefore, according to the present invention, it is possible to reduce the amount of impact upon collision with the following vehicle by differently developing the airbag according to the type of the following vehicle following the middle-sized commercial vehicle, It can be prevented from being pushed under the vehicle.

110: rear plate fixing plate 120: rear plate
130: collision detector 140. 142: air bag

Claims (10)

A rear seat plate fixed to a rear end of a side frame of a middle- or large-sized commercial vehicle;
A rear safety plate installed on the rear seat fixing plate at a predetermined distance inward from a loading end of the middle- or large-sized commercial vehicle;
A rear safety plate connecting portion connecting the rear safety plate to the rear safety plate fixing member so as to be pivotable by a predetermined angle;
A collision detecting unit mounted on the rear safety plate for detecting a type of the following vehicle following the middle or large commercial vehicle and a relative distance between the medium or large commercial vehicle and the following vehicle;
A pair of first airbags mounted on the rear safety plate and deployed toward the rear of the middle-sized commercial vehicle in the event of a collision by the following vehicle to reduce the amount of impact by the subsequent vehicle;
A pair of second airbags mounted on a lower portion of the pair of first airbags and deployed toward the ground in a collision by the following vehicle to reduce the amount of impact by the subsequent vehicle;
A controller for receiving the signal of the collision detecting unit to determine a collision by the following vehicle and deploying the first and second airbags according to the type of the following vehicle detected by the collision detecting unit when the collision is caused by the following vehicle, The rear impact damage reduction device of a medium and large sized commercial vehicle. The method according to claim 1,
Further comprising a damping device connecting the rear stabilizer plate to the side frame and damping the amount of impact by the subsequent vehicle. 3. The method of claim 2,
Wherein the damping device is a hydraulic damper. The method according to claim 1,
Wherein the rear safety plate coupling portion is a hinge. 5. The method of claim 4,
Wherein the rear safety plate connection portion is tilted at a predetermined angle after the collision by the following vehicle. The method according to claim 1,
Wherein the collision detecting unit is a camera. The method according to claim 1,
The controller comprising:
Receiving from the collision detecting unit a photographed image of the succeeding vehicle, a relative distance with the following vehicle, receiving the speed of the vehicle from the vehicle speed sensor of the medium and large sized commercial vehicle;
When the middle- or large-sized commercial vehicle maintains a distance shorter than or equal to the relative distance during the predetermined holding time by the type of the following vehicle, the relative distance, and the next vehicle at the time of traveling at a predetermined speed, and;
Deploying the pair of first airbags when the subsequent vehicle is a commercial vehicle and deploying the pair of second airbags when the subsequent vehicle is a passenger vehicle when it is determined that a rear-end collision is occurring; A device for reducing the damage of rear - end collision of medium - sized commercial vehicles. A rear seat plate fixed to a rear end of a side frame of a middle- or large-sized commercial vehicle;
A rear safety plate installed on the rear seat fixing plate at a predetermined distance inward from a loading end of the middle- or large-sized commercial vehicle;
A rear safety plate connecting portion connecting the rear safety plate to the rear safety plate fixing member so as to be pivotable by a predetermined angle;
A camera mounted on the rear safety plate for detecting a type of the following vehicle following the middle-sized commercial vehicle and a relative distance between the middle-sized commercial vehicle and the succeeding vehicle;
A pair of first airbags mounted on the rear safety plate and deployed toward the rear of the middle-sized commercial vehicle in the event of a collision by the following vehicle to reduce the amount of impact by the subsequent vehicle;
A pair of second airbags mounted on a lower portion of the pair of first airbags and deployed toward the ground in a collision by the following vehicle to reduce the amount of impact by the subsequent vehicle;
A controller for receiving the signal of the collision detecting unit to determine a collision by the following vehicle and deploying the first and second airbags according to the type of the following vehicle detected by the collision detecting unit when the collision is caused by the following vehicle, In a rear impact crash mitigation apparatus of a medium- and large-sized commercial vehicle,
Determining whether the middle- or large-sized commercial vehicle travels at a predetermined speed or more;
Determining whether the next vehicle exists through the image photographed by the camera;
Determining whether the succeeding vehicle is a passenger vehicle or a commercial vehicle when the succeeding vehicle exists;
Determining a collision by the subsequent vehicle and deploying the pair of first airbags when the next vehicle is a commercial vehicle; And
And determining a collision by the following vehicle to deploy the pair of second airbags when the next vehicle is a passenger vehicle. 9. The method of claim 8,
Wherein deploying the pair of first airbags comprises:
Determining whether a first relative distance between the following vehicle and the medium-sized commercial vehicle is within a first predetermined distance;
Determining whether the first relative distance is maintained for a first predetermined holding time when the first relative distance is shorter than or equal to the first predetermined distance; And
And deploying the pair of airbags when the first relative distance is maintained within the first predetermined distance during the first predetermined holding time. 9. The method of claim 8,
Wherein deploying the pair of second airbags comprises:
Determining whether a second relative distance between the following vehicle and the medium-sized commercial vehicle is within a second predetermined distance;
Determining whether the second relative distance is maintained for a second predetermined holding time when the second relative distance is shorter than or equal to the second predetermined distance; And
And deploying the pair of airbags when the second relative distance is maintained within the second predetermined distance during the second predetermined holding time.
KR1020120130488A 2012-11-16 2012-11-16 Apparatus for and method of reducing damage by rear-end collision of medium and heavy commercial vehicles KR20140063291A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115158211A (en) * 2022-08-12 2022-10-11 北京京深深向科技有限公司 Rear-end collision prevention control method and device, electronic equipment and storage medium
KR102461282B1 (en) * 2021-07-19 2022-11-10 대경정밀공업 주식회사 Shock mitigation device for rear-end collision for truck

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102461282B1 (en) * 2021-07-19 2022-11-10 대경정밀공업 주식회사 Shock mitigation device for rear-end collision for truck
CN115158211A (en) * 2022-08-12 2022-10-11 北京京深深向科技有限公司 Rear-end collision prevention control method and device, electronic equipment and storage medium
CN115158211B (en) * 2022-08-12 2024-03-08 北京京深深向科技有限公司 Rear-end collision prevention control method and device, electronic equipment and storage medium

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